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 | aba43bb | 2009-05-26 20:50:29 +0000 | [diff] [blame] | 13 | #include "clang/AST/ASTConsumer.h" |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 14 | #include "clang/AST/ASTContext.h" |
| 15 | #include "clang/AST/DeclTemplate.h" |
| 16 | #include "clang/AST/DeclVisitor.h" |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 17 | #include "clang/AST/DependentDiagnostic.h" |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 18 | #include "clang/AST/Expr.h" |
Douglas Gregor | a88cfbf | 2009-12-12 18:16:41 +0000 | [diff] [blame] | 19 | #include "clang/AST/ExprCXX.h" |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 20 | #include "clang/AST/TypeLoc.h" |
Douglas Gregor | 83ddad3 | 2009-08-26 21:14:46 +0000 | [diff] [blame] | 21 | #include "clang/Lex/Preprocessor.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 22 | #include "clang/Sema/Lookup.h" |
| 23 | #include "clang/Sema/PrettyDeclStackTrace.h" |
| 24 | #include "clang/Sema/Template.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 | |
DeLesley Hutchins | 7b9ff0c | 2012-01-20 22:37:06 +0000 | [diff] [blame] | 60 | // Include attribute instantiation code. |
| 61 | #include "clang/Sema/AttrTemplateInstantiate.inc" |
| 62 | |
Richard Smith | f6565a9 | 2013-02-22 08:32:16 +0000 | [diff] [blame] | 63 | static void instantiateDependentAlignedAttr( |
| 64 | Sema &S, const MultiLevelTemplateArgumentList &TemplateArgs, |
| 65 | const AlignedAttr *Aligned, Decl *New, bool IsPackExpansion) { |
| 66 | if (Aligned->isAlignmentExpr()) { |
| 67 | // The alignment expression is a constant expression. |
| 68 | EnterExpressionEvaluationContext Unevaluated(S, Sema::ConstantEvaluated); |
| 69 | ExprResult Result = S.SubstExpr(Aligned->getAlignmentExpr(), TemplateArgs); |
| 70 | if (!Result.isInvalid()) |
| 71 | S.AddAlignedAttr(Aligned->getLocation(), New, Result.takeAs<Expr>(), |
| 72 | Aligned->getSpellingListIndex(), IsPackExpansion); |
| 73 | } else { |
| 74 | TypeSourceInfo *Result = S.SubstType(Aligned->getAlignmentType(), |
| 75 | TemplateArgs, Aligned->getLocation(), |
| 76 | DeclarationName()); |
| 77 | if (Result) |
| 78 | S.AddAlignedAttr(Aligned->getLocation(), New, Result, |
| 79 | Aligned->getSpellingListIndex(), IsPackExpansion); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | static void instantiateDependentAlignedAttr( |
| 84 | Sema &S, const MultiLevelTemplateArgumentList &TemplateArgs, |
| 85 | const AlignedAttr *Aligned, Decl *New) { |
| 86 | if (!Aligned->isPackExpansion()) { |
| 87 | instantiateDependentAlignedAttr(S, TemplateArgs, Aligned, New, false); |
| 88 | return; |
| 89 | } |
| 90 | |
| 91 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
| 92 | if (Aligned->isAlignmentExpr()) |
| 93 | S.collectUnexpandedParameterPacks(Aligned->getAlignmentExpr(), |
| 94 | Unexpanded); |
| 95 | else |
| 96 | S.collectUnexpandedParameterPacks(Aligned->getAlignmentType()->getTypeLoc(), |
| 97 | Unexpanded); |
| 98 | assert(!Unexpanded.empty() && "Pack expansion without parameter packs?"); |
| 99 | |
| 100 | // Determine whether we can expand this attribute pack yet. |
| 101 | bool Expand = true, RetainExpansion = false; |
| 102 | Optional<unsigned> NumExpansions; |
| 103 | // FIXME: Use the actual location of the ellipsis. |
| 104 | SourceLocation EllipsisLoc = Aligned->getLocation(); |
| 105 | if (S.CheckParameterPacksForExpansion(EllipsisLoc, Aligned->getRange(), |
| 106 | Unexpanded, TemplateArgs, Expand, |
| 107 | RetainExpansion, NumExpansions)) |
| 108 | return; |
| 109 | |
| 110 | if (!Expand) { |
| 111 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(S, -1); |
| 112 | instantiateDependentAlignedAttr(S, TemplateArgs, Aligned, New, true); |
| 113 | } else { |
| 114 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
| 115 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(S, I); |
| 116 | instantiateDependentAlignedAttr(S, TemplateArgs, Aligned, New, false); |
| 117 | } |
| 118 | } |
| 119 | } |
| 120 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 121 | void Sema::InstantiateAttrs(const MultiLevelTemplateArgumentList &TemplateArgs, |
DeLesley Hutchins | 23323e0 | 2012-01-20 22:50:54 +0000 | [diff] [blame] | 122 | const Decl *Tmpl, Decl *New, |
| 123 | LateInstantiatedAttrVec *LateAttrs, |
| 124 | LocalInstantiationScope *OuterMostScope) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 125 | for (AttrVec::const_iterator i = Tmpl->attr_begin(), e = Tmpl->attr_end(); |
| 126 | i != e; ++i) { |
| 127 | const Attr *TmplAttr = *i; |
DeLesley Hutchins | 23323e0 | 2012-01-20 22:50:54 +0000 | [diff] [blame] | 128 | |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 129 | // FIXME: This should be generalized to more than just the AlignedAttr. |
Richard Smith | f6565a9 | 2013-02-22 08:32:16 +0000 | [diff] [blame] | 130 | const AlignedAttr *Aligned = dyn_cast<AlignedAttr>(TmplAttr); |
| 131 | if (Aligned && Aligned->isAlignmentDependent()) { |
| 132 | instantiateDependentAlignedAttr(*this, TemplateArgs, Aligned, New); |
| 133 | continue; |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 134 | } |
| 135 | |
Richard Smith | f6565a9 | 2013-02-22 08:32:16 +0000 | [diff] [blame] | 136 | assert(!TmplAttr->isPackExpansion()); |
DeLesley Hutchins | 23323e0 | 2012-01-20 22:50:54 +0000 | [diff] [blame] | 137 | if (TmplAttr->isLateParsed() && LateAttrs) { |
| 138 | // Late parsed attributes must be instantiated and attached after the |
| 139 | // enclosing class has been instantiated. See Sema::InstantiateClass. |
| 140 | LocalInstantiationScope *Saved = 0; |
| 141 | if (CurrentInstantiationScope) |
| 142 | Saved = CurrentInstantiationScope->cloneScopes(OuterMostScope); |
| 143 | LateAttrs->push_back(LateInstantiatedAttribute(TmplAttr, Saved, New)); |
| 144 | } else { |
Richard Smith | cafeb94 | 2013-06-07 02:33:37 +0000 | [diff] [blame] | 145 | // Allow 'this' within late-parsed attributes. |
| 146 | NamedDecl *ND = dyn_cast<NamedDecl>(New); |
| 147 | CXXRecordDecl *ThisContext = |
| 148 | dyn_cast_or_null<CXXRecordDecl>(ND->getDeclContext()); |
| 149 | CXXThisScopeRAII ThisScope(*this, ThisContext, /*TypeQuals*/0, |
| 150 | ND && ND->isCXXInstanceMember()); |
| 151 | |
Benjamin Kramer | 5bbc385 | 2012-02-06 11:13:08 +0000 | [diff] [blame] | 152 | Attr *NewAttr = sema::instantiateTemplateAttribute(TmplAttr, Context, |
| 153 | *this, TemplateArgs); |
Rafael Espindola | 31c195a | 2012-05-15 14:09:55 +0000 | [diff] [blame] | 154 | if (NewAttr) |
| 155 | New->addAttr(NewAttr); |
DeLesley Hutchins | 23323e0 | 2012-01-20 22:50:54 +0000 | [diff] [blame] | 156 | } |
Anders Carlsson | d8fe2d5 | 2009-11-07 06:07:58 +0000 | [diff] [blame] | 157 | } |
| 158 | } |
| 159 | |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 160 | Decl * |
| 161 | TemplateDeclInstantiator::VisitTranslationUnitDecl(TranslationUnitDecl *D) { |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 162 | llvm_unreachable("Translation units cannot be instantiated"); |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | Decl * |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 166 | TemplateDeclInstantiator::VisitLabelDecl(LabelDecl *D) { |
| 167 | LabelDecl *Inst = LabelDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 168 | D->getIdentifier()); |
| 169 | Owner->addDecl(Inst); |
| 170 | return Inst; |
| 171 | } |
| 172 | |
| 173 | Decl * |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 174 | TemplateDeclInstantiator::VisitNamespaceDecl(NamespaceDecl *D) { |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 175 | llvm_unreachable("Namespaces cannot be instantiated"); |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 176 | } |
| 177 | |
John McCall | 3dbd3d5 | 2010-02-16 06:53:13 +0000 | [diff] [blame] | 178 | Decl * |
| 179 | TemplateDeclInstantiator::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { |
| 180 | NamespaceAliasDecl *Inst |
| 181 | = NamespaceAliasDecl::Create(SemaRef.Context, Owner, |
| 182 | D->getNamespaceLoc(), |
| 183 | D->getAliasLoc(), |
Douglas Gregor | 0cfaf6a | 2011-02-25 17:08:07 +0000 | [diff] [blame] | 184 | D->getIdentifier(), |
| 185 | D->getQualifierLoc(), |
John McCall | 3dbd3d5 | 2010-02-16 06:53:13 +0000 | [diff] [blame] | 186 | D->getTargetNameLoc(), |
| 187 | D->getNamespace()); |
| 188 | Owner->addDecl(Inst); |
| 189 | return Inst; |
| 190 | } |
| 191 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 192 | Decl *TemplateDeclInstantiator::InstantiateTypedefNameDecl(TypedefNameDecl *D, |
| 193 | bool IsTypeAlias) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 194 | bool Invalid = false; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 195 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
Douglas Gregor | 561f812 | 2011-07-01 01:22:09 +0000 | [diff] [blame] | 196 | if (DI->getType()->isInstantiationDependentType() || |
Douglas Gregor | 836adf6 | 2010-05-24 17:22:01 +0000 | [diff] [blame] | 197 | DI->getType()->isVariablyModifiedType()) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 198 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 199 | D->getLocation(), D->getDeclName()); |
| 200 | if (!DI) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 201 | Invalid = true; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 202 | DI = SemaRef.Context.getTrivialTypeSourceInfo(SemaRef.Context.IntTy); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 203 | } |
Douglas Gregor | b4eeaff | 2010-05-07 23:12:07 +0000 | [diff] [blame] | 204 | } else { |
| 205 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 206 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 207 | |
Richard Smith | b5b37d1 | 2012-10-23 00:32:41 +0000 | [diff] [blame] | 208 | // HACK: g++ has a bug where it gets the value kind of ?: wrong. |
| 209 | // libstdc++ relies upon this bug in its implementation of common_type. |
| 210 | // If we happen to be processing that implementation, fake up the g++ ?: |
| 211 | // semantics. See LWG issue 2141 for more information on the bug. |
| 212 | const DecltypeType *DT = DI->getType()->getAs<DecltypeType>(); |
| 213 | CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D->getDeclContext()); |
| 214 | if (DT && RD && isa<ConditionalOperator>(DT->getUnderlyingExpr()) && |
| 215 | DT->isReferenceType() && |
| 216 | RD->getEnclosingNamespaceContext() == SemaRef.getStdNamespace() && |
| 217 | RD->getIdentifier() && RD->getIdentifier()->isStr("common_type") && |
| 218 | D->getIdentifier() && D->getIdentifier()->isStr("type") && |
| 219 | SemaRef.getSourceManager().isInSystemHeader(D->getLocStart())) |
| 220 | // Fold it to the (non-reference) type which g++ would have produced. |
| 221 | DI = SemaRef.Context.getTrivialTypeSourceInfo( |
| 222 | DI->getType().getNonReferenceType()); |
| 223 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 224 | // Create the new typedef |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 225 | TypedefNameDecl *Typedef; |
| 226 | if (IsTypeAlias) |
| 227 | Typedef = TypeAliasDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
| 228 | D->getLocation(), D->getIdentifier(), DI); |
| 229 | else |
| 230 | Typedef = TypedefDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
| 231 | D->getLocation(), D->getIdentifier(), DI); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 232 | if (Invalid) |
| 233 | Typedef->setInvalidDecl(); |
| 234 | |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 235 | // If the old typedef was the name for linkage purposes of an anonymous |
| 236 | // tag decl, re-establish that relationship for the new typedef. |
| 237 | if (const TagType *oldTagType = D->getUnderlyingType()->getAs<TagType>()) { |
| 238 | TagDecl *oldTag = oldTagType->getDecl(); |
Douglas Gregor | c61361b | 2013-03-08 22:15:15 +0000 | [diff] [blame] | 239 | if (oldTag->getTypedefNameForAnonDecl() == D && !Invalid) { |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 240 | TagDecl *newTag = DI->getType()->castAs<TagType>()->getDecl(); |
John McCall | 83972f1 | 2013-03-09 00:54:27 +0000 | [diff] [blame] | 241 | assert(!newTag->hasNameForLinkage()); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 242 | newTag->setTypedefNameForAnonDecl(Typedef); |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 243 | } |
Douglas Gregor | d57a38e | 2010-04-23 16:25:07 +0000 | [diff] [blame] | 244 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 245 | |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 246 | if (TypedefNameDecl *Prev = D->getPreviousDecl()) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 247 | NamedDecl *InstPrev = SemaRef.FindInstantiatedDecl(D->getLocation(), Prev, |
| 248 | TemplateArgs); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 249 | if (!InstPrev) |
| 250 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 251 | |
Rafael Espindola | 5df37bd | 2011-12-26 22:42:47 +0000 | [diff] [blame] | 252 | TypedefNameDecl *InstPrevTypedef = cast<TypedefNameDecl>(InstPrev); |
| 253 | |
| 254 | // If the typedef types are not identical, reject them. |
| 255 | SemaRef.isIncompatibleTypedef(InstPrevTypedef, Typedef); |
| 256 | |
| 257 | Typedef->setPreviousDeclaration(InstPrevTypedef); |
John McCall | 5126fd0 | 2009-12-30 00:31:22 +0000 | [diff] [blame] | 258 | } |
| 259 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 260 | SemaRef.InstantiateAttrs(TemplateArgs, D, Typedef); |
Douglas Gregor | d57a38e | 2010-04-23 16:25:07 +0000 | [diff] [blame] | 261 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 262 | Typedef->setAccess(D->getAccess()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 263 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 264 | return Typedef; |
| 265 | } |
| 266 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 267 | Decl *TemplateDeclInstantiator::VisitTypedefDecl(TypedefDecl *D) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 268 | Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/false); |
| 269 | Owner->addDecl(Typedef); |
| 270 | return Typedef; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | Decl *TemplateDeclInstantiator::VisitTypeAliasDecl(TypeAliasDecl *D) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 274 | Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/true); |
| 275 | Owner->addDecl(Typedef); |
| 276 | return Typedef; |
| 277 | } |
| 278 | |
| 279 | Decl * |
| 280 | TemplateDeclInstantiator::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { |
| 281 | // Create a local instantiation scope for this type alias template, which |
| 282 | // will contain the instantiations of the template parameters. |
| 283 | LocalInstantiationScope Scope(SemaRef); |
| 284 | |
| 285 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 286 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 287 | if (!InstParams) |
| 288 | return 0; |
| 289 | |
| 290 | TypeAliasDecl *Pattern = D->getTemplatedDecl(); |
| 291 | |
| 292 | TypeAliasTemplateDecl *PrevAliasTemplate = 0; |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 293 | if (Pattern->getPreviousDecl()) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 294 | DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); |
David Blaikie | 3bc93e3 | 2012-12-19 00:45:41 +0000 | [diff] [blame] | 295 | if (!Found.empty()) { |
| 296 | PrevAliasTemplate = dyn_cast<TypeAliasTemplateDecl>(Found.front()); |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 297 | } |
| 298 | } |
| 299 | |
| 300 | TypeAliasDecl *AliasInst = cast_or_null<TypeAliasDecl>( |
| 301 | InstantiateTypedefNameDecl(Pattern, /*IsTypeAlias=*/true)); |
| 302 | if (!AliasInst) |
| 303 | return 0; |
| 304 | |
| 305 | TypeAliasTemplateDecl *Inst |
| 306 | = TypeAliasTemplateDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 307 | D->getDeclName(), InstParams, AliasInst); |
| 308 | if (PrevAliasTemplate) |
| 309 | Inst->setPreviousDeclaration(PrevAliasTemplate); |
| 310 | |
| 311 | Inst->setAccess(D->getAccess()); |
| 312 | |
| 313 | if (!PrevAliasTemplate) |
| 314 | Inst->setInstantiatedFromMemberTemplate(D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 315 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 316 | Owner->addDecl(Inst); |
| 317 | |
| 318 | return Inst; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 319 | } |
| 320 | |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 321 | Decl *TemplateDeclInstantiator::VisitVarDecl(VarDecl *D) { |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 322 | // If this is the variable for an anonymous struct or union, |
| 323 | // instantiate the anonymous struct/union type first. |
| 324 | if (const RecordType *RecordTy = D->getType()->getAs<RecordType>()) |
| 325 | if (RecordTy->getDecl()->isAnonymousStructOrUnion()) |
| 326 | if (!VisitCXXRecordDecl(cast<CXXRecordDecl>(RecordTy->getDecl()))) |
| 327 | return 0; |
| 328 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 329 | // Do substitution on the type of the declaration |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 330 | TypeSourceInfo *DI = SemaRef.SubstType(D->getTypeSourceInfo(), |
John McCall | 0a5fa06 | 2009-10-21 02:39:02 +0000 | [diff] [blame] | 331 | TemplateArgs, |
| 332 | D->getTypeSpecStartLoc(), |
| 333 | D->getDeclName()); |
| 334 | if (!DI) |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 335 | return 0; |
| 336 | |
Douglas Gregor | c6dbc3f | 2010-09-12 07:37:24 +0000 | [diff] [blame] | 337 | if (DI->getType()->isFunctionType()) { |
| 338 | SemaRef.Diag(D->getLocation(), diag::err_variable_instantiates_to_function) |
| 339 | << D->isStaticDataMember() << DI->getType(); |
| 340 | return 0; |
| 341 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 342 | |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 343 | // Build the instantiated declaration |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 344 | VarDecl *Var = VarDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 345 | D->getInnerLocStart(), |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 346 | D->getLocation(), D->getIdentifier(), |
John McCall | 0a5fa06 | 2009-10-21 02:39:02 +0000 | [diff] [blame] | 347 | DI->getType(), DI, |
Rafael Espindola | d2615cc | 2013-04-03 19:27:57 +0000 | [diff] [blame] | 348 | D->getStorageClass()); |
Enea Zaffanella | dc17384 | 2013-05-04 08:27:07 +0000 | [diff] [blame] | 349 | Var->setTSCSpec(D->getTSCSpec()); |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 350 | Var->setInitStyle(D->getInitStyle()); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 351 | Var->setCXXForRangeDecl(D->isCXXForRangeDecl()); |
Richard Smith | 796c1a1 | 2012-01-19 22:46:17 +0000 | [diff] [blame] | 352 | Var->setConstexpr(D->isConstexpr()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 353 | |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 354 | // Substitute the nested name specifier, if any. |
| 355 | if (SubstQualifier(D, Var)) |
| 356 | return 0; |
| 357 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 358 | // If we are instantiating a static data member defined |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 359 | // out-of-line, the instantiation will have the same lexical |
| 360 | // context (which will be a namespace scope) as the template. |
| 361 | if (D->isOutOfLine()) |
| 362 | Var->setLexicalDeclContext(D->getLexicalDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 363 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 364 | Var->setAccess(D->getAccess()); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 365 | |
Argyrios Kyrtzidis | 6b6b42a | 2011-04-19 19:51:10 +0000 | [diff] [blame] | 366 | if (!D->isStaticDataMember()) { |
Douglas Gregor | c070cc6 | 2010-06-17 23:14:26 +0000 | [diff] [blame] | 367 | Var->setUsed(D->isUsed(false)); |
Argyrios Kyrtzidis | 6b6b42a | 2011-04-19 19:51:10 +0000 | [diff] [blame] | 368 | Var->setReferenced(D->isReferenced()); |
| 369 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 370 | |
Richard Smith | 671b321 | 2013-02-22 04:55:39 +0000 | [diff] [blame] | 371 | SemaRef.InstantiateAttrs(TemplateArgs, D, Var, LateAttrs, StartingScope); |
| 372 | |
| 373 | if (Var->hasAttrs()) |
| 374 | SemaRef.CheckAlignasUnderalignment(Var); |
| 375 | |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 376 | // FIXME: In theory, we could have a previous declaration for variables that |
| 377 | // are not static data members. |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 378 | // FIXME: having to fake up a LookupResult is dumb. |
| 379 | LookupResult Previous(SemaRef, Var->getDeclName(), Var->getLocation(), |
Douglas Gregor | 449d0a8 | 2010-03-01 19:11:54 +0000 | [diff] [blame] | 380 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
Douglas Gregor | 60c93c9 | 2010-02-09 07:26:29 +0000 | [diff] [blame] | 381 | if (D->isStaticDataMember()) |
| 382 | SemaRef.LookupQualifiedName(Previous, Owner, false); |
Douglas Gregor | 9aab9c4 | 2011-12-10 01:22:52 +0000 | [diff] [blame] | 383 | |
| 384 | // In ARC, infer 'retaining' for variables of retainable type. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 385 | if (SemaRef.getLangOpts().ObjCAutoRefCount && |
Douglas Gregor | 9aab9c4 | 2011-12-10 01:22:52 +0000 | [diff] [blame] | 386 | SemaRef.inferObjCARCLifetime(Var)) |
| 387 | Var->setInvalidDecl(); |
| 388 | |
Kaelyn Uhrain | 2c712f5 | 2011-10-11 00:28:45 +0000 | [diff] [blame] | 389 | SemaRef.CheckVariableDeclaration(Var, Previous); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 390 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 391 | if (D->isOutOfLine()) { |
Richard Smith | 3e9ea0b | 2011-12-21 00:25:33 +0000 | [diff] [blame] | 392 | D->getLexicalDeclContext()->addDecl(Var); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 393 | Owner->makeDeclVisibleInContext(Var); |
| 394 | } else { |
| 395 | Owner->addDecl(Var); |
Douglas Gregor | f7d72f5 | 2010-05-03 20:22:41 +0000 | [diff] [blame] | 396 | if (Owner->isFunctionOrMethod()) |
| 397 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Var); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 398 | } |
Richard Smith | be507b6 | 2013-02-01 08:12:08 +0000 | [diff] [blame] | 399 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 400 | // Link instantiations of static data members back to the template from |
| 401 | // which they were instantiated. |
| 402 | if (Var->isStaticDataMember()) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 403 | SemaRef.Context.setInstantiatedFromStaticDataMember(Var, D, |
Douglas Gregor | cf3293e | 2009-11-01 20:32:48 +0000 | [diff] [blame] | 404 | TSK_ImplicitInstantiation); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 405 | |
Douglas Gregor | 60c93c9 | 2010-02-09 07:26:29 +0000 | [diff] [blame] | 406 | if (Var->getAnyInitializer()) { |
| 407 | // We already have an initializer in the class. |
| 408 | } else if (D->getInit()) { |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 409 | if (Var->isStaticDataMember() && !D->isOutOfLine()) |
Richard Smith | adb1d4c | 2012-07-22 23:45:10 +0000 | [diff] [blame] | 410 | SemaRef.PushExpressionEvaluationContext(Sema::ConstantEvaluated, D); |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 411 | else |
Richard Smith | adb1d4c | 2012-07-22 23:45:10 +0000 | [diff] [blame] | 412 | SemaRef.PushExpressionEvaluationContext(Sema::PotentiallyEvaluated, D); |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 413 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 414 | // Instantiate the initializer. |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 415 | ExprResult Init = SemaRef.SubstInitializer(D->getInit(), TemplateArgs, |
| 416 | D->getInitStyle() == VarDecl::CallInit); |
| 417 | if (!Init.isInvalid()) { |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 418 | bool TypeMayContainAuto = true; |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 419 | if (Init.get()) { |
| 420 | bool DirectInit = D->isDirectInit(); |
| 421 | SemaRef.AddInitializerToDecl(Var, Init.take(), DirectInit, |
| 422 | TypeMayContainAuto); |
| 423 | } else |
Eli Friedman | 6aeaa60 | 2012-01-05 22:34:08 +0000 | [diff] [blame] | 424 | SemaRef.ActOnUninitializedDecl(Var, TypeMayContainAuto); |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 425 | } else { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 426 | // FIXME: Not too happy about invalidating the declaration |
| 427 | // because of a bogus initializer. |
| 428 | Var->setInvalidDecl(); |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 429 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 430 | |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 431 | SemaRef.PopExpressionEvaluationContext(); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 432 | } else if ((!Var->isStaticDataMember() || Var->isOutOfLine()) && |
| 433 | !Var->isCXXForRangeDecl()) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 434 | SemaRef.ActOnUninitializedDecl(Var, false); |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 435 | |
Richard Smith | e3499ca | 2011-06-21 23:42:09 +0000 | [diff] [blame] | 436 | // Diagnose unused local variables with dependent types, where the diagnostic |
| 437 | // will have been deferred. |
| 438 | if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed() && |
| 439 | D->getType()->isDependentType()) |
Douglas Gregor | 5764f61 | 2010-05-08 23:05:03 +0000 | [diff] [blame] | 440 | SemaRef.DiagnoseUnusedDecl(Var); |
Argyrios Kyrtzidis | bbc6454 | 2010-08-15 01:15:20 +0000 | [diff] [blame] | 441 | |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 442 | return Var; |
| 443 | } |
| 444 | |
Abramo Bagnara | 6206d53 | 2010-06-05 05:09:32 +0000 | [diff] [blame] | 445 | Decl *TemplateDeclInstantiator::VisitAccessSpecDecl(AccessSpecDecl *D) { |
| 446 | AccessSpecDecl* AD |
| 447 | = AccessSpecDecl::Create(SemaRef.Context, D->getAccess(), Owner, |
| 448 | D->getAccessSpecifierLoc(), D->getColonLoc()); |
| 449 | Owner->addHiddenDecl(AD); |
| 450 | return AD; |
| 451 | } |
| 452 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 453 | Decl *TemplateDeclInstantiator::VisitFieldDecl(FieldDecl *D) { |
| 454 | bool Invalid = false; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 455 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
Douglas Gregor | 561f812 | 2011-07-01 01:22:09 +0000 | [diff] [blame] | 456 | if (DI->getType()->isInstantiationDependentType() || |
Douglas Gregor | 836adf6 | 2010-05-24 17:22:01 +0000 | [diff] [blame] | 457 | DI->getType()->isVariablyModifiedType()) { |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 458 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 459 | D->getLocation(), D->getDeclName()); |
| 460 | if (!DI) { |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 461 | DI = D->getTypeSourceInfo(); |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 462 | Invalid = true; |
| 463 | } else if (DI->getType()->isFunctionType()) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 464 | // C++ [temp.arg.type]p3: |
| 465 | // If a declaration acquires a function type through a type |
| 466 | // dependent on a template-parameter and this causes a |
| 467 | // declaration that does not use the syntactic form of a |
| 468 | // function declarator to have function type, the program is |
| 469 | // ill-formed. |
| 470 | SemaRef.Diag(D->getLocation(), diag::err_field_instantiates_to_function) |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 471 | << DI->getType(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 472 | Invalid = true; |
| 473 | } |
Douglas Gregor | b4eeaff | 2010-05-07 23:12:07 +0000 | [diff] [blame] | 474 | } else { |
| 475 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 476 | } |
| 477 | |
| 478 | Expr *BitWidth = D->getBitWidth(); |
| 479 | if (Invalid) |
| 480 | BitWidth = 0; |
| 481 | else if (BitWidth) { |
Richard Smith | f6702a3 | 2011-12-20 02:08:33 +0000 | [diff] [blame] | 482 | // The bit-width expression is a constant expression. |
| 483 | EnterExpressionEvaluationContext Unevaluated(SemaRef, |
| 484 | Sema::ConstantEvaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 485 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 486 | ExprResult InstantiatedBitWidth |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 487 | = SemaRef.SubstExpr(BitWidth, TemplateArgs); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 488 | if (InstantiatedBitWidth.isInvalid()) { |
| 489 | Invalid = true; |
| 490 | BitWidth = 0; |
| 491 | } else |
Anders Carlsson | e9146f2 | 2009-05-01 19:49:17 +0000 | [diff] [blame] | 492 | BitWidth = InstantiatedBitWidth.takeAs<Expr>(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 493 | } |
| 494 | |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 495 | FieldDecl *Field = SemaRef.CheckFieldDecl(D->getDeclName(), |
| 496 | DI->getType(), DI, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 497 | cast<RecordDecl>(Owner), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 498 | D->getLocation(), |
| 499 | D->isMutable(), |
| 500 | BitWidth, |
Richard Smith | ca52330 | 2012-06-10 03:12:00 +0000 | [diff] [blame] | 501 | D->getInClassInitStyle(), |
Richard Smith | 703b601 | 2012-05-23 04:22:22 +0000 | [diff] [blame] | 502 | D->getInnerLocStart(), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 503 | D->getAccess(), |
| 504 | 0); |
Douglas Gregor | 663b5a0 | 2009-10-14 20:14:33 +0000 | [diff] [blame] | 505 | if (!Field) { |
| 506 | cast<Decl>(Owner)->setInvalidDecl(); |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 507 | return 0; |
Douglas Gregor | 663b5a0 | 2009-10-14 20:14:33 +0000 | [diff] [blame] | 508 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 509 | |
DeLesley Hutchins | 23323e0 | 2012-01-20 22:50:54 +0000 | [diff] [blame] | 510 | SemaRef.InstantiateAttrs(TemplateArgs, D, Field, LateAttrs, StartingScope); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 511 | |
Richard Smith | be507b6 | 2013-02-01 08:12:08 +0000 | [diff] [blame] | 512 | if (Field->hasAttrs()) |
| 513 | SemaRef.CheckAlignasUnderalignment(Field); |
| 514 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 515 | if (Invalid) |
| 516 | Field->setInvalidDecl(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 517 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 518 | if (!Field->getDeclName()) { |
| 519 | // Keep track of where this decl came from. |
| 520 | SemaRef.Context.setInstantiatedFromUnnamedFieldDecl(Field, D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 521 | } |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 522 | if (CXXRecordDecl *Parent= dyn_cast<CXXRecordDecl>(Field->getDeclContext())) { |
| 523 | if (Parent->isAnonymousStructOrUnion() && |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 524 | Parent->getRedeclContext()->isFunctionOrMethod()) |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 525 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Field); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 526 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 527 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 528 | Field->setImplicit(D->isImplicit()); |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 529 | Field->setAccess(D->getAccess()); |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 530 | Owner->addDecl(Field); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 531 | |
| 532 | return Field; |
| 533 | } |
| 534 | |
John McCall | 76da55d | 2013-04-16 07:28:30 +0000 | [diff] [blame] | 535 | Decl *TemplateDeclInstantiator::VisitMSPropertyDecl(MSPropertyDecl *D) { |
| 536 | bool Invalid = false; |
| 537 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
| 538 | |
| 539 | if (DI->getType()->isVariablyModifiedType()) { |
| 540 | SemaRef.Diag(D->getLocation(), diag::err_property_is_variably_modified) |
| 541 | << D->getName(); |
| 542 | Invalid = true; |
| 543 | } else if (DI->getType()->isInstantiationDependentType()) { |
| 544 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 545 | D->getLocation(), D->getDeclName()); |
| 546 | if (!DI) { |
| 547 | DI = D->getTypeSourceInfo(); |
| 548 | Invalid = true; |
| 549 | } else if (DI->getType()->isFunctionType()) { |
| 550 | // C++ [temp.arg.type]p3: |
| 551 | // If a declaration acquires a function type through a type |
| 552 | // dependent on a template-parameter and this causes a |
| 553 | // declaration that does not use the syntactic form of a |
| 554 | // function declarator to have function type, the program is |
| 555 | // ill-formed. |
| 556 | SemaRef.Diag(D->getLocation(), diag::err_field_instantiates_to_function) |
| 557 | << DI->getType(); |
| 558 | Invalid = true; |
| 559 | } |
| 560 | } else { |
| 561 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
| 562 | } |
| 563 | |
| 564 | MSPropertyDecl *Property = new (SemaRef.Context) |
| 565 | MSPropertyDecl(Owner, D->getLocation(), |
| 566 | D->getDeclName(), DI->getType(), DI, |
| 567 | D->getLocStart(), |
| 568 | D->getGetterId(), D->getSetterId()); |
| 569 | |
| 570 | SemaRef.InstantiateAttrs(TemplateArgs, D, Property, LateAttrs, |
| 571 | StartingScope); |
| 572 | |
| 573 | if (Invalid) |
| 574 | Property->setInvalidDecl(); |
| 575 | |
| 576 | Property->setAccess(D->getAccess()); |
| 577 | Owner->addDecl(Property); |
| 578 | |
| 579 | return Property; |
| 580 | } |
| 581 | |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 582 | Decl *TemplateDeclInstantiator::VisitIndirectFieldDecl(IndirectFieldDecl *D) { |
| 583 | NamedDecl **NamedChain = |
| 584 | new (SemaRef.Context)NamedDecl*[D->getChainingSize()]; |
| 585 | |
| 586 | int i = 0; |
| 587 | for (IndirectFieldDecl::chain_iterator PI = |
| 588 | D->chain_begin(), PE = D->chain_end(); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 589 | PI != PE; ++PI) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 590 | NamedDecl *Next = SemaRef.FindInstantiatedDecl(D->getLocation(), *PI, |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 591 | TemplateArgs); |
| 592 | if (!Next) |
| 593 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 594 | |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 595 | NamedChain[i++] = Next; |
| 596 | } |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 597 | |
Francois Pichet | 40e1775 | 2010-12-09 10:07:54 +0000 | [diff] [blame] | 598 | QualType T = cast<FieldDecl>(NamedChain[i-1])->getType(); |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 599 | IndirectFieldDecl* IndirectField |
| 600 | = IndirectFieldDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
Francois Pichet | 40e1775 | 2010-12-09 10:07:54 +0000 | [diff] [blame] | 601 | D->getIdentifier(), T, |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 602 | NamedChain, D->getChainingSize()); |
| 603 | |
| 604 | |
| 605 | IndirectField->setImplicit(D->isImplicit()); |
| 606 | IndirectField->setAccess(D->getAccess()); |
| 607 | Owner->addDecl(IndirectField); |
| 608 | return IndirectField; |
| 609 | } |
| 610 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 611 | Decl *TemplateDeclInstantiator::VisitFriendDecl(FriendDecl *D) { |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 612 | // Handle friend type expressions by simply substituting template |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 613 | // parameters into the pattern type and checking the result. |
John McCall | 32f2fb5 | 2010-03-25 18:04:51 +0000 | [diff] [blame] | 614 | if (TypeSourceInfo *Ty = D->getFriendType()) { |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 615 | TypeSourceInfo *InstTy; |
| 616 | // If this is an unsupported friend, don't bother substituting template |
| 617 | // arguments into it. The actual type referred to won't be used by any |
| 618 | // parts of Clang, and may not be valid for instantiating. Just use the |
| 619 | // same info for the instantiated friend. |
| 620 | if (D->isUnsupportedFriend()) { |
| 621 | InstTy = Ty; |
| 622 | } else { |
| 623 | InstTy = SemaRef.SubstType(Ty, TemplateArgs, |
| 624 | D->getLocation(), DeclarationName()); |
| 625 | } |
| 626 | if (!InstTy) |
Douglas Gregor | 7557a13 | 2009-12-24 20:56:24 +0000 | [diff] [blame] | 627 | return 0; |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 628 | |
Richard Smith | d6f80da | 2012-09-20 01:31:00 +0000 | [diff] [blame] | 629 | FriendDecl *FD = SemaRef.CheckFriendTypeDecl(D->getLocStart(), |
Abramo Bagnara | 0216df8 | 2011-10-29 20:52:52 +0000 | [diff] [blame] | 630 | D->getFriendLoc(), InstTy); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 631 | if (!FD) |
| 632 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 633 | |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 634 | FD->setAccess(AS_public); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 635 | FD->setUnsupportedFriend(D->isUnsupportedFriend()); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 636 | Owner->addDecl(FD); |
| 637 | return FD; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 638 | } |
| 639 | |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 640 | NamedDecl *ND = D->getFriendDecl(); |
| 641 | assert(ND && "friend decl must be a decl or a type!"); |
| 642 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 643 | // All of the Visit implementations for the various potential friend |
| 644 | // declarations have to be carefully written to work for friend |
| 645 | // objects, with the most important detail being that the target |
| 646 | // decl should almost certainly not be placed in Owner. |
| 647 | Decl *NewND = Visit(ND); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 648 | if (!NewND) return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 649 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 650 | FriendDecl *FD = |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 651 | FriendDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 652 | cast<NamedDecl>(NewND), D->getFriendLoc()); |
John McCall | 5fee110 | 2009-08-29 03:50:18 +0000 | [diff] [blame] | 653 | FD->setAccess(AS_public); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 654 | FD->setUnsupportedFriend(D->isUnsupportedFriend()); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 655 | Owner->addDecl(FD); |
| 656 | return FD; |
John McCall | fd810b1 | 2009-08-14 02:03:10 +0000 | [diff] [blame] | 657 | } |
| 658 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 659 | Decl *TemplateDeclInstantiator::VisitStaticAssertDecl(StaticAssertDecl *D) { |
| 660 | Expr *AssertExpr = D->getAssertExpr(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 661 | |
Richard Smith | f6702a3 | 2011-12-20 02:08:33 +0000 | [diff] [blame] | 662 | // The expression in a static assertion is a constant expression. |
| 663 | EnterExpressionEvaluationContext Unevaluated(SemaRef, |
| 664 | Sema::ConstantEvaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 665 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 666 | ExprResult InstantiatedAssertExpr |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 667 | = SemaRef.SubstExpr(AssertExpr, TemplateArgs); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 668 | if (InstantiatedAssertExpr.isInvalid()) |
| 669 | return 0; |
| 670 | |
Richard Smith | e3f470a | 2012-07-11 22:37:56 +0000 | [diff] [blame] | 671 | return SemaRef.BuildStaticAssertDeclaration(D->getLocation(), |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 672 | InstantiatedAssertExpr.get(), |
Richard Smith | e3f470a | 2012-07-11 22:37:56 +0000 | [diff] [blame] | 673 | D->getMessage(), |
| 674 | D->getRParenLoc(), |
| 675 | D->isFailed()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 676 | } |
| 677 | |
| 678 | Decl *TemplateDeclInstantiator::VisitEnumDecl(EnumDecl *D) { |
Richard Smith | 38f0df3 | 2012-03-26 04:58:10 +0000 | [diff] [blame] | 679 | EnumDecl *PrevDecl = 0; |
| 680 | if (D->getPreviousDecl()) { |
| 681 | NamedDecl *Prev = SemaRef.FindInstantiatedDecl(D->getLocation(), |
| 682 | D->getPreviousDecl(), |
| 683 | TemplateArgs); |
| 684 | if (!Prev) return 0; |
| 685 | PrevDecl = cast<EnumDecl>(Prev); |
| 686 | } |
| 687 | |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 688 | EnumDecl *Enum = EnumDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 689 | D->getLocation(), D->getIdentifier(), |
Richard Smith | 38f0df3 | 2012-03-26 04:58:10 +0000 | [diff] [blame] | 690 | PrevDecl, D->isScoped(), |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 691 | D->isScopedUsingClassTag(), D->isFixed()); |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 692 | if (D->isFixed()) { |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 693 | if (TypeSourceInfo *TI = D->getIntegerTypeSourceInfo()) { |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 694 | // If we have type source information for the underlying type, it means it |
| 695 | // has been explicitly set by the user. Perform substitution on it before |
| 696 | // moving on. |
| 697 | SourceLocation UnderlyingLoc = TI->getTypeLoc().getBeginLoc(); |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 698 | TypeSourceInfo *NewTI = SemaRef.SubstType(TI, TemplateArgs, UnderlyingLoc, |
| 699 | DeclarationName()); |
| 700 | if (!NewTI || SemaRef.CheckEnumUnderlyingType(NewTI)) |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 701 | Enum->setIntegerType(SemaRef.Context.IntTy); |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 702 | else |
| 703 | Enum->setIntegerTypeSourceInfo(NewTI); |
| 704 | } else { |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 705 | assert(!D->getIntegerType()->isDependentType() |
| 706 | && "Dependent type without type source info"); |
| 707 | Enum->setIntegerType(D->getIntegerType()); |
| 708 | } |
| 709 | } |
| 710 | |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 711 | SemaRef.InstantiateAttrs(TemplateArgs, D, Enum); |
| 712 | |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 713 | Enum->setInstantiationOfMemberEnum(D, TSK_ImplicitInstantiation); |
Douglas Gregor | 06c0fec | 2009-03-25 22:00:53 +0000 | [diff] [blame] | 714 | Enum->setAccess(D->getAccess()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 715 | if (SubstQualifier(D, Enum)) return 0; |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 716 | Owner->addDecl(Enum); |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 717 | |
Richard Smith | 4ca93d9 | 2012-03-26 04:08:46 +0000 | [diff] [blame] | 718 | EnumDecl *Def = D->getDefinition(); |
| 719 | if (Def && Def != D) { |
| 720 | // If this is an out-of-line definition of an enum member template, check |
| 721 | // that the underlying types match in the instantiation of both |
| 722 | // declarations. |
| 723 | if (TypeSourceInfo *TI = Def->getIntegerTypeSourceInfo()) { |
| 724 | SourceLocation UnderlyingLoc = TI->getTypeLoc().getBeginLoc(); |
| 725 | QualType DefnUnderlying = |
| 726 | SemaRef.SubstType(TI->getType(), TemplateArgs, |
| 727 | UnderlyingLoc, DeclarationName()); |
| 728 | SemaRef.CheckEnumRedeclaration(Def->getLocation(), Def->isScoped(), |
| 729 | DefnUnderlying, Enum); |
| 730 | } |
| 731 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 732 | |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 733 | if (D->getDeclContext()->isFunctionOrMethod()) |
| 734 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Enum); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 735 | |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 736 | // C++11 [temp.inst]p1: The implicit instantiation of a class template |
| 737 | // specialization causes the implicit instantiation of the declarations, but |
| 738 | // not the definitions of scoped member enumerations. |
| 739 | // FIXME: There appears to be no wording for what happens for an enum defined |
Richard Smith | 38f0df3 | 2012-03-26 04:58:10 +0000 | [diff] [blame] | 740 | // within a block scope, but we treat that much like a member template. Only |
| 741 | // instantiate the definition when visiting the definition in that case, since |
| 742 | // we will visit all redeclarations. |
| 743 | if (!Enum->isScoped() && Def && |
| 744 | (!D->getDeclContext()->isFunctionOrMethod() || D->isCompleteDefinition())) |
Richard Smith | 4ca93d9 | 2012-03-26 04:08:46 +0000 | [diff] [blame] | 745 | InstantiateEnumDefinition(Enum, Def); |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 746 | |
| 747 | return Enum; |
| 748 | } |
| 749 | |
| 750 | void TemplateDeclInstantiator::InstantiateEnumDefinition( |
| 751 | EnumDecl *Enum, EnumDecl *Pattern) { |
| 752 | Enum->startDefinition(); |
| 753 | |
Richard Smith | 1af83c4 | 2012-03-23 03:33:32 +0000 | [diff] [blame] | 754 | // Update the location to refer to the definition. |
| 755 | Enum->setLocation(Pattern->getLocation()); |
| 756 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 757 | SmallVector<Decl*, 4> Enumerators; |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 758 | |
| 759 | EnumConstantDecl *LastEnumConst = 0; |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 760 | for (EnumDecl::enumerator_iterator EC = Pattern->enumerator_begin(), |
| 761 | ECEnd = Pattern->enumerator_end(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 762 | EC != ECEnd; ++EC) { |
| 763 | // The specified value for the enumerator. |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 764 | ExprResult Value = SemaRef.Owned((Expr *)0); |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 765 | if (Expr *UninstValue = EC->getInitExpr()) { |
Richard Smith | f6702a3 | 2011-12-20 02:08:33 +0000 | [diff] [blame] | 766 | // The enumerator's value expression is a constant expression. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 767 | EnterExpressionEvaluationContext Unevaluated(SemaRef, |
Richard Smith | f6702a3 | 2011-12-20 02:08:33 +0000 | [diff] [blame] | 768 | Sema::ConstantEvaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 769 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 770 | Value = SemaRef.SubstExpr(UninstValue, TemplateArgs); |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 771 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 772 | |
| 773 | // Drop the initial value and continue. |
| 774 | bool isInvalid = false; |
| 775 | if (Value.isInvalid()) { |
| 776 | Value = SemaRef.Owned((Expr *)0); |
| 777 | isInvalid = true; |
| 778 | } |
| 779 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 780 | EnumConstantDecl *EnumConst |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 781 | = SemaRef.CheckEnumConstant(Enum, LastEnumConst, |
| 782 | EC->getLocation(), EC->getIdentifier(), |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 783 | Value.get()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 784 | |
| 785 | if (isInvalid) { |
| 786 | if (EnumConst) |
| 787 | EnumConst->setInvalidDecl(); |
| 788 | Enum->setInvalidDecl(); |
| 789 | } |
| 790 | |
| 791 | if (EnumConst) { |
David Blaikie | 581deb3 | 2012-06-06 20:45:41 +0000 | [diff] [blame] | 792 | SemaRef.InstantiateAttrs(TemplateArgs, *EC, EnumConst); |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 793 | |
John McCall | 3b85ecf | 2010-01-23 22:37:59 +0000 | [diff] [blame] | 794 | EnumConst->setAccess(Enum->getAccess()); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 795 | Enum->addDecl(EnumConst); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 796 | Enumerators.push_back(EnumConst); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 797 | LastEnumConst = EnumConst; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 798 | |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 799 | if (Pattern->getDeclContext()->isFunctionOrMethod() && |
| 800 | !Enum->isScoped()) { |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 801 | // If the enumeration is within a function or method, record the enum |
| 802 | // constant as a local. |
David Blaikie | 581deb3 | 2012-06-06 20:45:41 +0000 | [diff] [blame] | 803 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(*EC, EnumConst); |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 804 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 805 | } |
| 806 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 807 | |
Richard Smith | f1c66b4 | 2012-03-14 23:13:10 +0000 | [diff] [blame] | 808 | // FIXME: Fixup LBraceLoc |
| 809 | SemaRef.ActOnEnumBody(Enum->getLocation(), SourceLocation(), |
| 810 | Enum->getRBraceLoc(), Enum, |
Dmitri Gribenko | 9ff2b42 | 2013-04-27 20:23:52 +0000 | [diff] [blame] | 811 | Enumerators, |
Edward O'Callaghan | fee1381 | 2009-08-08 14:36:57 +0000 | [diff] [blame] | 812 | 0, 0); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 813 | } |
| 814 | |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 815 | Decl *TemplateDeclInstantiator::VisitEnumConstantDecl(EnumConstantDecl *D) { |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 816 | llvm_unreachable("EnumConstantDecls can only occur within EnumDecls."); |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 817 | } |
| 818 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 819 | Decl *TemplateDeclInstantiator::VisitClassTemplateDecl(ClassTemplateDecl *D) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 820 | bool isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 821 | |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 822 | // Create a local instantiation scope for this class template, which |
| 823 | // will contain the instantiations of the template parameters. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 824 | LocalInstantiationScope Scope(SemaRef); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 825 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 826 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 827 | if (!InstParams) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 828 | return NULL; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 829 | |
| 830 | CXXRecordDecl *Pattern = D->getTemplatedDecl(); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 831 | |
| 832 | // Instantiate the qualifier. We have to do this first in case |
| 833 | // we're a friend declaration, because if we are then we need to put |
| 834 | // the new declaration in the appropriate context. |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 835 | NestedNameSpecifierLoc QualifierLoc = Pattern->getQualifierLoc(); |
| 836 | if (QualifierLoc) { |
| 837 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
| 838 | TemplateArgs); |
| 839 | if (!QualifierLoc) |
| 840 | return 0; |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | CXXRecordDecl *PrevDecl = 0; |
| 844 | ClassTemplateDecl *PrevClassTemplate = 0; |
| 845 | |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 846 | if (!isFriend && Pattern->getPreviousDecl()) { |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 847 | DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); |
David Blaikie | 3bc93e3 | 2012-12-19 00:45:41 +0000 | [diff] [blame] | 848 | if (!Found.empty()) { |
| 849 | PrevClassTemplate = dyn_cast<ClassTemplateDecl>(Found.front()); |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 850 | if (PrevClassTemplate) |
| 851 | PrevDecl = PrevClassTemplate->getTemplatedDecl(); |
| 852 | } |
| 853 | } |
| 854 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 855 | // If this isn't a friend, then it's a member template, in which |
| 856 | // case we just want to build the instantiation in the |
| 857 | // specialization. If it is a friend, we want to build it in |
| 858 | // the appropriate context. |
| 859 | DeclContext *DC = Owner; |
| 860 | if (isFriend) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 861 | if (QualifierLoc) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 862 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 863 | SS.Adopt(QualifierLoc); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 864 | DC = SemaRef.computeDeclContext(SS); |
| 865 | if (!DC) return 0; |
| 866 | } else { |
| 867 | DC = SemaRef.FindInstantiatedContext(Pattern->getLocation(), |
| 868 | Pattern->getDeclContext(), |
| 869 | TemplateArgs); |
| 870 | } |
| 871 | |
| 872 | // Look for a previous declaration of the template in the owning |
| 873 | // context. |
| 874 | LookupResult R(SemaRef, Pattern->getDeclName(), Pattern->getLocation(), |
| 875 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
| 876 | SemaRef.LookupQualifiedName(R, DC); |
| 877 | |
| 878 | if (R.isSingleResult()) { |
| 879 | PrevClassTemplate = R.getAsSingle<ClassTemplateDecl>(); |
| 880 | if (PrevClassTemplate) |
| 881 | PrevDecl = PrevClassTemplate->getTemplatedDecl(); |
| 882 | } |
| 883 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 884 | if (!PrevClassTemplate && QualifierLoc) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 885 | SemaRef.Diag(Pattern->getLocation(), diag::err_not_tag_in_scope) |
Douglas Gregor | 1eabb7d | 2010-03-31 23:17:41 +0000 | [diff] [blame] | 886 | << D->getTemplatedDecl()->getTagKind() << Pattern->getDeclName() << DC |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 887 | << QualifierLoc.getSourceRange(); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 888 | return 0; |
| 889 | } |
| 890 | |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 891 | bool AdoptedPreviousTemplateParams = false; |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 892 | if (PrevClassTemplate) { |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 893 | bool Complain = true; |
| 894 | |
| 895 | // HACK: libstdc++ 4.2.1 contains an ill-formed friend class |
| 896 | // template for struct std::tr1::__detail::_Map_base, where the |
| 897 | // template parameters of the friend declaration don't match the |
| 898 | // template parameters of the original declaration. In this one |
| 899 | // case, we don't complain about the ill-formed friend |
| 900 | // declaration. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 901 | if (isFriend && Pattern->getIdentifier() && |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 902 | Pattern->getIdentifier()->isStr("_Map_base") && |
| 903 | DC->isNamespace() && |
| 904 | cast<NamespaceDecl>(DC)->getIdentifier() && |
| 905 | cast<NamespaceDecl>(DC)->getIdentifier()->isStr("__detail")) { |
| 906 | DeclContext *DCParent = DC->getParent(); |
| 907 | if (DCParent->isNamespace() && |
| 908 | cast<NamespaceDecl>(DCParent)->getIdentifier() && |
| 909 | cast<NamespaceDecl>(DCParent)->getIdentifier()->isStr("tr1")) { |
| 910 | DeclContext *DCParent2 = DCParent->getParent(); |
| 911 | if (DCParent2->isNamespace() && |
| 912 | cast<NamespaceDecl>(DCParent2)->getIdentifier() && |
| 913 | cast<NamespaceDecl>(DCParent2)->getIdentifier()->isStr("std") && |
| 914 | DCParent2->getParent()->isTranslationUnit()) |
| 915 | Complain = false; |
| 916 | } |
| 917 | } |
| 918 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 919 | TemplateParameterList *PrevParams |
| 920 | = PrevClassTemplate->getTemplateParameters(); |
| 921 | |
| 922 | // Make sure the parameter lists match. |
| 923 | if (!SemaRef.TemplateParameterListsAreEqual(InstParams, PrevParams, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 924 | Complain, |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 925 | Sema::TPL_TemplateMatch)) { |
| 926 | if (Complain) |
| 927 | return 0; |
| 928 | |
| 929 | AdoptedPreviousTemplateParams = true; |
| 930 | InstParams = PrevParams; |
| 931 | } |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 932 | |
| 933 | // Do some additional validation, then merge default arguments |
| 934 | // from the existing declarations. |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 935 | if (!AdoptedPreviousTemplateParams && |
| 936 | SemaRef.CheckTemplateParameterList(InstParams, PrevParams, |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 937 | Sema::TPC_ClassTemplate)) |
| 938 | return 0; |
| 939 | } |
| 940 | } |
| 941 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 942 | CXXRecordDecl *RecordInst |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 943 | = CXXRecordDecl::Create(SemaRef.Context, Pattern->getTagKind(), DC, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 944 | Pattern->getLocStart(), Pattern->getLocation(), |
| 945 | Pattern->getIdentifier(), PrevDecl, |
Douglas Gregor | f0510d4 | 2009-10-12 23:11:44 +0000 | [diff] [blame] | 946 | /*DelayTypeCreation=*/true); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 947 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 948 | if (QualifierLoc) |
| 949 | RecordInst->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 950 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 951 | ClassTemplateDecl *Inst |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 952 | = ClassTemplateDecl::Create(SemaRef.Context, DC, D->getLocation(), |
| 953 | D->getIdentifier(), InstParams, RecordInst, |
| 954 | PrevClassTemplate); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 955 | RecordInst->setDescribedClassTemplate(Inst); |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 956 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 957 | if (isFriend) { |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 958 | if (PrevClassTemplate) |
| 959 | Inst->setAccess(PrevClassTemplate->getAccess()); |
| 960 | else |
| 961 | Inst->setAccess(D->getAccess()); |
| 962 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 963 | Inst->setObjectOfFriendDecl(PrevClassTemplate != 0); |
| 964 | // TODO: do we want to track the instantiation progeny of this |
| 965 | // friend target decl? |
| 966 | } else { |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 967 | Inst->setAccess(D->getAccess()); |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 968 | if (!PrevClassTemplate) |
| 969 | Inst->setInstantiatedFromMemberTemplate(D); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 970 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 971 | |
Douglas Gregor | f0510d4 | 2009-10-12 23:11:44 +0000 | [diff] [blame] | 972 | // Trigger creation of the type for the instantiation. |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 973 | SemaRef.Context.getInjectedClassNameType(RecordInst, |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 974 | Inst->getInjectedClassNameSpecialization()); |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 975 | |
Douglas Gregor | 259571e | 2009-10-30 22:42:42 +0000 | [diff] [blame] | 976 | // Finish handling of friends. |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 977 | if (isFriend) { |
Richard Smith | 1b7f9cb | 2012-03-13 03:12:56 +0000 | [diff] [blame] | 978 | DC->makeDeclVisibleInContext(Inst); |
Abramo Bagnara | 4c51548 | 2011-11-26 13:33:46 +0000 | [diff] [blame] | 979 | Inst->setLexicalDeclContext(Owner); |
| 980 | RecordInst->setLexicalDeclContext(Owner); |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 981 | return Inst; |
Douglas Gregor | 259571e | 2009-10-30 22:42:42 +0000 | [diff] [blame] | 982 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 983 | |
Abramo Bagnara | 4c51548 | 2011-11-26 13:33:46 +0000 | [diff] [blame] | 984 | if (D->isOutOfLine()) { |
| 985 | Inst->setLexicalDeclContext(D->getLexicalDeclContext()); |
| 986 | RecordInst->setLexicalDeclContext(D->getLexicalDeclContext()); |
| 987 | } |
| 988 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 989 | Owner->addDecl(Inst); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 990 | |
| 991 | if (!PrevClassTemplate) { |
| 992 | // Queue up any out-of-line partial specializations of this member |
| 993 | // class template; the client will force their instantiation once |
| 994 | // the enclosing class has been instantiated. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 995 | SmallVector<ClassTemplatePartialSpecializationDecl *, 4> PartialSpecs; |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 996 | D->getPartialSpecializations(PartialSpecs); |
| 997 | for (unsigned I = 0, N = PartialSpecs.size(); I != N; ++I) |
| 998 | if (PartialSpecs[I]->isOutOfLine()) |
| 999 | OutOfLinePartialSpecs.push_back(std::make_pair(Inst, PartialSpecs[I])); |
| 1000 | } |
| 1001 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1002 | return Inst; |
| 1003 | } |
| 1004 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1005 | Decl * |
Douglas Gregor | 7974c3b | 2009-10-07 17:21:34 +0000 | [diff] [blame] | 1006 | TemplateDeclInstantiator::VisitClassTemplatePartialSpecializationDecl( |
| 1007 | ClassTemplatePartialSpecializationDecl *D) { |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1008 | ClassTemplateDecl *ClassTemplate = D->getSpecializedTemplate(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1009 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1010 | // Lookup the already-instantiated declaration in the instantiation |
| 1011 | // of the class template and return that. |
| 1012 | DeclContext::lookup_result Found |
| 1013 | = Owner->lookup(ClassTemplate->getDeclName()); |
David Blaikie | 3bc93e3 | 2012-12-19 00:45:41 +0000 | [diff] [blame] | 1014 | if (Found.empty()) |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1015 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1016 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1017 | ClassTemplateDecl *InstClassTemplate |
David Blaikie | 3bc93e3 | 2012-12-19 00:45:41 +0000 | [diff] [blame] | 1018 | = dyn_cast<ClassTemplateDecl>(Found.front()); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1019 | if (!InstClassTemplate) |
| 1020 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1021 | |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 1022 | if (ClassTemplatePartialSpecializationDecl *Result |
| 1023 | = InstClassTemplate->findPartialSpecInstantiatedFromMember(D)) |
| 1024 | return Result; |
| 1025 | |
| 1026 | return InstantiateClassTemplatePartialSpecialization(InstClassTemplate, D); |
Douglas Gregor | 7974c3b | 2009-10-07 17:21:34 +0000 | [diff] [blame] | 1027 | } |
| 1028 | |
| 1029 | Decl * |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1030 | TemplateDeclInstantiator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1031 | // Create a local instantiation scope for this function template, which |
| 1032 | // will contain the instantiations of the template parameters and then get |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1033 | // merged with the local instantiation scope for the function template |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1034 | // itself. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1035 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 895162d | 2010-04-30 18:55:50 +0000 | [diff] [blame] | 1036 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1037 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 1038 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1039 | if (!InstParams) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1040 | return NULL; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1041 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1042 | FunctionDecl *Instantiated = 0; |
| 1043 | if (CXXMethodDecl *DMethod = dyn_cast<CXXMethodDecl>(D->getTemplatedDecl())) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1044 | Instantiated = cast_or_null<FunctionDecl>(VisitCXXMethodDecl(DMethod, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1045 | InstParams)); |
| 1046 | else |
| 1047 | Instantiated = cast_or_null<FunctionDecl>(VisitFunctionDecl( |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1048 | D->getTemplatedDecl(), |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1049 | InstParams)); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1050 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1051 | if (!Instantiated) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1052 | return 0; |
| 1053 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1054 | // Link the instantiated function template declaration to the function |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1055 | // template from which it was instantiated. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1056 | FunctionTemplateDecl *InstTemplate |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1057 | = Instantiated->getDescribedFunctionTemplate(); |
Douglas Gregor | 37d68185 | 2009-10-12 22:27:17 +0000 | [diff] [blame] | 1058 | InstTemplate->setAccess(D->getAccess()); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1059 | assert(InstTemplate && |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1060 | "VisitFunctionDecl/CXXMethodDecl didn't create a template!"); |
John McCall | e976ffe | 2009-12-14 23:19:40 +0000 | [diff] [blame] | 1061 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1062 | bool isFriend = (InstTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1063 | |
John McCall | e976ffe | 2009-12-14 23:19:40 +0000 | [diff] [blame] | 1064 | // Link the instantiation back to the pattern *unless* this is a |
| 1065 | // non-definition friend declaration. |
| 1066 | if (!InstTemplate->getInstantiatedFromMemberTemplate() && |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1067 | !(isFriend && !D->getTemplatedDecl()->isThisDeclarationADefinition())) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1068 | InstTemplate->setInstantiatedFromMemberTemplate(D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1069 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1070 | // Make declarations visible in the appropriate context. |
John McCall | 1f2e1a9 | 2012-08-10 03:15:35 +0000 | [diff] [blame] | 1071 | if (!isFriend) { |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1072 | Owner->addDecl(InstTemplate); |
John McCall | 1f2e1a9 | 2012-08-10 03:15:35 +0000 | [diff] [blame] | 1073 | } else if (InstTemplate->getDeclContext()->isRecord() && |
| 1074 | !D->getPreviousDecl()) { |
| 1075 | SemaRef.CheckFriendAccess(InstTemplate); |
| 1076 | } |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1077 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1078 | return InstTemplate; |
| 1079 | } |
| 1080 | |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1081 | Decl *TemplateDeclInstantiator::VisitCXXRecordDecl(CXXRecordDecl *D) { |
| 1082 | CXXRecordDecl *PrevDecl = 0; |
| 1083 | if (D->isInjectedClassName()) |
| 1084 | PrevDecl = cast<CXXRecordDecl>(Owner); |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 1085 | else if (D->getPreviousDecl()) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 1086 | NamedDecl *Prev = SemaRef.FindInstantiatedDecl(D->getLocation(), |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 1087 | D->getPreviousDecl(), |
John McCall | 6c1c1b8 | 2009-12-15 22:29:06 +0000 | [diff] [blame] | 1088 | TemplateArgs); |
| 1089 | if (!Prev) return 0; |
| 1090 | PrevDecl = cast<CXXRecordDecl>(Prev); |
| 1091 | } |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1092 | |
| 1093 | CXXRecordDecl *Record |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1094 | = CXXRecordDecl::Create(SemaRef.Context, D->getTagKind(), Owner, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 1095 | D->getLocStart(), D->getLocation(), |
| 1096 | D->getIdentifier(), PrevDecl); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1097 | |
| 1098 | // Substitute the nested name specifier, if any. |
| 1099 | if (SubstQualifier(D, Record)) |
| 1100 | return 0; |
| 1101 | |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1102 | Record->setImplicit(D->isImplicit()); |
Eli Friedman | eaba1af | 2009-08-27 19:11:42 +0000 | [diff] [blame] | 1103 | // FIXME: Check against AS_none is an ugly hack to work around the issue that |
| 1104 | // the tag decls introduced by friend class declarations don't have an access |
| 1105 | // specifier. Remove once this area of the code gets sorted out. |
| 1106 | if (D->getAccess() != AS_none) |
| 1107 | Record->setAccess(D->getAccess()); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1108 | if (!D->isInjectedClassName()) |
Douglas Gregor | f6b1185 | 2009-10-08 15:14:33 +0000 | [diff] [blame] | 1109 | Record->setInstantiationOfMemberClass(D, TSK_ImplicitInstantiation); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1110 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1111 | // If the original function was part of a friend declaration, |
| 1112 | // inherit its namespace state. |
| 1113 | if (Decl::FriendObjectKind FOK = D->getFriendObjectKind()) |
| 1114 | Record->setObjectOfFriendDecl(FOK == Decl::FOK_Declared); |
| 1115 | |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 1116 | // Make sure that anonymous structs and unions are recorded. |
| 1117 | if (D->isAnonymousStructOrUnion()) { |
| 1118 | Record->setAnonymousStructOrUnion(true); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1119 | if (Record->getDeclContext()->getRedeclContext()->isFunctionOrMethod()) |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 1120 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Record); |
| 1121 | } |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 1122 | |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1123 | Owner->addDecl(Record); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1124 | return Record; |
| 1125 | } |
| 1126 | |
Douglas Gregor | 71074fd | 2012-09-13 21:56:43 +0000 | [diff] [blame] | 1127 | /// \brief Adjust the given function type for an instantiation of the |
| 1128 | /// given declaration, to cope with modifications to the function's type that |
| 1129 | /// aren't reflected in the type-source information. |
| 1130 | /// |
| 1131 | /// \param D The declaration we're instantiating. |
| 1132 | /// \param TInfo The already-instantiated type. |
| 1133 | static QualType adjustFunctionTypeForInstantiation(ASTContext &Context, |
| 1134 | FunctionDecl *D, |
| 1135 | TypeSourceInfo *TInfo) { |
Douglas Gregor | bed51fe | 2012-09-13 22:01:49 +0000 | [diff] [blame] | 1136 | const FunctionProtoType *OrigFunc |
| 1137 | = D->getType()->castAs<FunctionProtoType>(); |
| 1138 | const FunctionProtoType *NewFunc |
| 1139 | = TInfo->getType()->castAs<FunctionProtoType>(); |
| 1140 | if (OrigFunc->getExtInfo() == NewFunc->getExtInfo()) |
| 1141 | return TInfo->getType(); |
| 1142 | |
| 1143 | FunctionProtoType::ExtProtoInfo NewEPI = NewFunc->getExtProtoInfo(); |
| 1144 | NewEPI.ExtInfo = OrigFunc->getExtInfo(); |
| 1145 | return Context.getFunctionType(NewFunc->getResultType(), |
Jordan Rose | bea522f | 2013-03-08 21:51:21 +0000 | [diff] [blame] | 1146 | ArrayRef<QualType>(NewFunc->arg_type_begin(), |
| 1147 | NewFunc->getNumArgs()), |
Douglas Gregor | bed51fe | 2012-09-13 22:01:49 +0000 | [diff] [blame] | 1148 | NewEPI); |
Douglas Gregor | 71074fd | 2012-09-13 21:56:43 +0000 | [diff] [blame] | 1149 | } |
| 1150 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1151 | /// Normal class members are of more specific types and therefore |
| 1152 | /// don't make it here. This function serves two purposes: |
| 1153 | /// 1) instantiating function templates |
| 1154 | /// 2) substituting friend declarations |
| 1155 | /// FIXME: preserve function definitions in case #2 |
Douglas Gregor | 7557a13 | 2009-12-24 20:56:24 +0000 | [diff] [blame] | 1156 | Decl *TemplateDeclInstantiator::VisitFunctionDecl(FunctionDecl *D, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1157 | TemplateParameterList *TemplateParams) { |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1158 | // Check whether there is already a function template specialization for |
| 1159 | // this declaration. |
| 1160 | FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1161 | if (FunctionTemplate && !TemplateParams) { |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1162 | ArrayRef<TemplateArgument> Innermost = TemplateArgs.getInnermost(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1163 | |
Douglas Gregor | 1e1e972 | 2012-03-28 14:34:23 +0000 | [diff] [blame] | 1164 | void *InsertPos = 0; |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1165 | FunctionDecl *SpecFunc |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1166 | = FunctionTemplate->findSpecialization(Innermost.begin(), Innermost.size(), |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1167 | InsertPos); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1168 | |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1169 | // If we already have a function template specialization, return it. |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1170 | if (SpecFunc) |
| 1171 | return SpecFunc; |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1172 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1173 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1174 | bool isFriend; |
| 1175 | if (FunctionTemplate) |
| 1176 | isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1177 | else |
| 1178 | isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 1179 | |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1180 | bool MergeWithParentScope = (TemplateParams != 0) || |
Douglas Gregor | b212d9a | 2010-05-21 21:25:08 +0000 | [diff] [blame] | 1181 | Owner->isFunctionOrMethod() || |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1182 | !(isa<Decl>(Owner) && |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1183 | cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1184 | LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1185 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1186 | SmallVector<ParmVarDecl *, 4> Params; |
David Blaikie | 64b4b43 | 2011-11-10 05:42:04 +0000 | [diff] [blame] | 1187 | TypeSourceInfo *TInfo = SubstFunctionType(D, Params); |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1188 | if (!TInfo) |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1189 | return 0; |
Douglas Gregor | 71074fd | 2012-09-13 21:56:43 +0000 | [diff] [blame] | 1190 | QualType T = adjustFunctionTypeForInstantiation(SemaRef.Context, D, TInfo); |
John McCall | fd810b1 | 2009-08-14 02:03:10 +0000 | [diff] [blame] | 1191 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1192 | NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); |
| 1193 | if (QualifierLoc) { |
| 1194 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
| 1195 | TemplateArgs); |
| 1196 | if (!QualifierLoc) |
| 1197 | return 0; |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1198 | } |
| 1199 | |
John McCall | 68b6b87 | 2010-02-06 01:50:47 +0000 | [diff] [blame] | 1200 | // If we're instantiating a local function declaration, put the result |
| 1201 | // in the owner; otherwise we need to find the instantiated context. |
| 1202 | DeclContext *DC; |
| 1203 | if (D->getDeclContext()->isFunctionOrMethod()) |
| 1204 | DC = Owner; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1205 | else if (isFriend && QualifierLoc) { |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1206 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1207 | SS.Adopt(QualifierLoc); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1208 | DC = SemaRef.computeDeclContext(SS); |
| 1209 | if (!DC) return 0; |
| 1210 | } else { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1211 | DC = SemaRef.FindInstantiatedContext(D->getLocation(), D->getDeclContext(), |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 1212 | TemplateArgs); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1213 | } |
John McCall | 68b6b87 | 2010-02-06 01:50:47 +0000 | [diff] [blame] | 1214 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1215 | FunctionDecl *Function = |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1216 | FunctionDecl::Create(SemaRef.Context, DC, D->getInnerLocStart(), |
Abramo Bagnara | 635311f | 2012-10-04 21:40:42 +0000 | [diff] [blame] | 1217 | D->getNameInfo(), T, TInfo, |
Rafael Espindola | 459ef03 | 2013-04-16 02:29:15 +0000 | [diff] [blame] | 1218 | D->getCanonicalDecl()->getStorageClass(), |
Richard Smith | af1fc7a | 2011-08-15 21:04:07 +0000 | [diff] [blame] | 1219 | D->isInlineSpecified(), D->hasWrittenPrototype(), |
Richard Smith | 86c3ae4 | 2012-02-13 03:54:03 +0000 | [diff] [blame] | 1220 | D->isConstexpr()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1221 | |
Richard Smith | d4497dd | 2013-01-25 00:08:28 +0000 | [diff] [blame] | 1222 | if (D->isInlined()) |
| 1223 | Function->setImplicitlyInline(); |
| 1224 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1225 | if (QualifierLoc) |
| 1226 | Function->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1227 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1228 | DeclContext *LexicalDC = Owner; |
| 1229 | if (!isFriend && D->isOutOfLine()) { |
| 1230 | assert(D->getDeclContext()->isFileContext()); |
| 1231 | LexicalDC = D->getDeclContext(); |
| 1232 | } |
| 1233 | |
| 1234 | Function->setLexicalDeclContext(LexicalDC); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1235 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1236 | // Attach the parameters |
Douglas Gregor | 5cbe101 | 2011-07-05 18:30:26 +0000 | [diff] [blame] | 1237 | if (isa<FunctionProtoType>(Function->getType().IgnoreParens())) { |
Douglas Gregor | 1d441ee | 2011-06-22 18:16:25 +0000 | [diff] [blame] | 1238 | // Adopt the already-instantiated parameters into our own context. |
| 1239 | for (unsigned P = 0; P < Params.size(); ++P) |
| 1240 | if (Params[P]) |
| 1241 | Params[P]->setOwningFunction(Function); |
| 1242 | } else { |
| 1243 | // Since we were instantiated via a typedef of a function type, create |
| 1244 | // new parameters. |
| 1245 | const FunctionProtoType *Proto |
| 1246 | = Function->getType()->getAs<FunctionProtoType>(); |
| 1247 | assert(Proto && "No function prototype in template instantiation?"); |
| 1248 | for (FunctionProtoType::arg_type_iterator AI = Proto->arg_type_begin(), |
| 1249 | AE = Proto->arg_type_end(); AI != AE; ++AI) { |
| 1250 | ParmVarDecl *Param |
| 1251 | = SemaRef.BuildParmVarDeclForTypedef(Function, Function->getLocation(), |
| 1252 | *AI); |
| 1253 | Param->setScopeInfo(0, Params.size()); |
| 1254 | Params.push_back(Param); |
| 1255 | } |
| 1256 | } |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 1257 | Function->setParams(Params); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1258 | |
Douglas Gregor | ac7c2c8 | 2010-05-17 16:38:00 +0000 | [diff] [blame] | 1259 | SourceLocation InstantiateAtPOI; |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1260 | if (TemplateParams) { |
| 1261 | // Our resulting instantiation is actually a function template, since we |
| 1262 | // are substituting only the outer template parameters. For example, given |
| 1263 | // |
| 1264 | // template<typename T> |
| 1265 | // struct X { |
| 1266 | // template<typename U> friend void f(T, U); |
| 1267 | // }; |
| 1268 | // |
| 1269 | // X<int> x; |
| 1270 | // |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1271 | // We are instantiating the friend function template "f" within X<int>, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1272 | // which means substituting int for T, but leaving "f" as a friend function |
| 1273 | // template. |
| 1274 | // Build the function template itself. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1275 | FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, DC, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1276 | Function->getLocation(), |
| 1277 | Function->getDeclName(), |
| 1278 | TemplateParams, Function); |
| 1279 | Function->setDescribedFunctionTemplate(FunctionTemplate); |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1280 | |
| 1281 | FunctionTemplate->setLexicalDeclContext(LexicalDC); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1282 | |
| 1283 | if (isFriend && D->isThisDeclarationADefinition()) { |
| 1284 | // TODO: should we remember this connection regardless of whether |
| 1285 | // the friend declaration provided a body? |
| 1286 | FunctionTemplate->setInstantiatedFromMemberTemplate( |
| 1287 | D->getDescribedFunctionTemplate()); |
| 1288 | } |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1289 | } else if (FunctionTemplate) { |
| 1290 | // Record this function template specialization. |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1291 | ArrayRef<TemplateArgument> Innermost = TemplateArgs.getInnermost(); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1292 | Function->setFunctionTemplateSpecialization(FunctionTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1293 | TemplateArgumentList::CreateCopy(SemaRef.Context, |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1294 | Innermost.begin(), |
| 1295 | Innermost.size()), |
Douglas Gregor | 1e1e972 | 2012-03-28 14:34:23 +0000 | [diff] [blame] | 1296 | /*InsertPos=*/0); |
Chandler Carruth | 80f5b16 | 2011-08-18 09:09:59 +0000 | [diff] [blame] | 1297 | } else if (isFriend) { |
| 1298 | // Note, we need this connection even if the friend doesn't have a body. |
| 1299 | // Its body may exist but not have been attached yet due to deferred |
| 1300 | // parsing. |
| 1301 | // FIXME: It might be cleaner to set this when attaching the body to the |
| 1302 | // friend function declaration, however that would require finding all the |
| 1303 | // instantiations and modifying them. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1304 | Function->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1305 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1306 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1307 | if (InitFunctionInstantiation(Function, D)) |
| 1308 | Function->setInvalidDecl(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1309 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1310 | bool isExplicitSpecialization = false; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1311 | |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1312 | LookupResult Previous(SemaRef, Function->getDeclName(), SourceLocation(), |
| 1313 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
| 1314 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1315 | if (DependentFunctionTemplateSpecializationInfo *Info |
| 1316 | = D->getDependentSpecializationInfo()) { |
| 1317 | assert(isFriend && "non-friend has dependent specialization info?"); |
| 1318 | |
| 1319 | // This needs to be set now for future sanity. |
| 1320 | Function->setObjectOfFriendDecl(/*HasPrevious*/ true); |
| 1321 | |
| 1322 | // Instantiate the explicit template arguments. |
| 1323 | TemplateArgumentListInfo ExplicitArgs(Info->getLAngleLoc(), |
| 1324 | Info->getRAngleLoc()); |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 1325 | if (SemaRef.Subst(Info->getTemplateArgs(), Info->getNumTemplateArgs(), |
| 1326 | ExplicitArgs, TemplateArgs)) |
| 1327 | return 0; |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1328 | |
| 1329 | // Map the candidate templates to their instantiations. |
| 1330 | for (unsigned I = 0, E = Info->getNumTemplates(); I != E; ++I) { |
| 1331 | Decl *Temp = SemaRef.FindInstantiatedDecl(D->getLocation(), |
| 1332 | Info->getTemplate(I), |
| 1333 | TemplateArgs); |
| 1334 | if (!Temp) return 0; |
| 1335 | |
| 1336 | Previous.addDecl(cast<FunctionTemplateDecl>(Temp)); |
| 1337 | } |
| 1338 | |
| 1339 | if (SemaRef.CheckFunctionTemplateSpecialization(Function, |
| 1340 | &ExplicitArgs, |
| 1341 | Previous)) |
| 1342 | Function->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1343 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1344 | isExplicitSpecialization = true; |
| 1345 | |
| 1346 | } else if (TemplateParams || !FunctionTemplate) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1347 | // Look only into the namespace where the friend would be declared to |
| 1348 | // find a previous declaration. This is the innermost enclosing namespace, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1349 | // as described in ActOnFriendFunctionDecl. |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1350 | SemaRef.LookupQualifiedName(Previous, DC); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1351 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1352 | // In C++, the previous declaration we find might be a tag type |
| 1353 | // (class or enum). In this case, the new declaration will hide the |
| 1354 | // tag type. Note that this does does not apply if we're declaring a |
| 1355 | // typedef (C++ [dcl.typedef]p4). |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1356 | if (Previous.isSingleTagDecl()) |
| 1357 | Previous.clear(); |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1358 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1359 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1360 | SemaRef.CheckFunctionDeclaration(/*Scope*/ 0, Function, Previous, |
Kaelyn Uhrain | 2c712f5 | 2011-10-11 00:28:45 +0000 | [diff] [blame] | 1361 | isExplicitSpecialization); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1362 | |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1363 | NamedDecl *PrincipalDecl = (TemplateParams |
| 1364 | ? cast<NamedDecl>(FunctionTemplate) |
| 1365 | : Function); |
| 1366 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1367 | // If the original function was part of a friend declaration, |
| 1368 | // inherit its namespace state and add it to the owner. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1369 | if (isFriend) { |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1370 | NamedDecl *PrevDecl; |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1371 | if (TemplateParams) |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 1372 | PrevDecl = FunctionTemplate->getPreviousDecl(); |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1373 | else |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 1374 | PrevDecl = Function->getPreviousDecl(); |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1375 | |
| 1376 | PrincipalDecl->setObjectOfFriendDecl(PrevDecl != 0); |
Richard Smith | 1b7f9cb | 2012-03-13 03:12:56 +0000 | [diff] [blame] | 1377 | DC->makeDeclVisibleInContext(PrincipalDecl); |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1378 | |
Gabor Greif | 77535df | 2010-08-30 22:25:56 +0000 | [diff] [blame] | 1379 | bool queuedInstantiation = false; |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1380 | |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1381 | // C++98 [temp.friend]p5: When a function is defined in a friend function |
| 1382 | // declaration in a class template, the function is defined at each |
| 1383 | // instantiation of the class template. The function is defined even if it |
| 1384 | // is never used. |
| 1385 | // C++11 [temp.friend]p4: When a function is defined in a friend function |
| 1386 | // declaration in a class template, the function is instantiated when the |
| 1387 | // function is odr-used. |
| 1388 | // |
| 1389 | // If -Wc++98-compat is enabled, we go through the motions of checking for a |
| 1390 | // redefinition, but don't instantiate the function. |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1391 | if ((!SemaRef.getLangOpts().CPlusPlus11 || |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1392 | SemaRef.Diags.getDiagnosticLevel( |
| 1393 | diag::warn_cxx98_compat_friend_redefinition, |
| 1394 | Function->getLocation()) |
| 1395 | != DiagnosticsEngine::Ignored) && |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1396 | D->isThisDeclarationADefinition()) { |
| 1397 | // Check for a function body. |
| 1398 | const FunctionDecl *Definition = 0; |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 1399 | if (Function->isDefined(Definition) && |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1400 | Definition->getTemplateSpecializationKind() == TSK_Undeclared) { |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1401 | SemaRef.Diag(Function->getLocation(), |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1402 | SemaRef.getLangOpts().CPlusPlus11 ? |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1403 | diag::warn_cxx98_compat_friend_redefinition : |
| 1404 | diag::err_redefinition) << Function->getDeclName(); |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1405 | SemaRef.Diag(Definition->getLocation(), diag::note_previous_definition); |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1406 | if (!SemaRef.getLangOpts().CPlusPlus11) |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1407 | Function->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1408 | } |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1409 | // Check for redefinitions due to other instantiations of this or |
| 1410 | // a similar friend function. |
| 1411 | else for (FunctionDecl::redecl_iterator R = Function->redecls_begin(), |
| 1412 | REnd = Function->redecls_end(); |
| 1413 | R != REnd; ++R) { |
Gabor Greif | 13a8aff | 2010-08-28 15:42:30 +0000 | [diff] [blame] | 1414 | if (*R == Function) |
| 1415 | continue; |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1416 | switch (R->getFriendObjectKind()) { |
| 1417 | case Decl::FOK_None: |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1418 | if (!SemaRef.getLangOpts().CPlusPlus11 && |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1419 | !queuedInstantiation && R->isUsed(false)) { |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1420 | if (MemberSpecializationInfo *MSInfo |
| 1421 | = Function->getMemberSpecializationInfo()) { |
| 1422 | if (MSInfo->getPointOfInstantiation().isInvalid()) { |
| 1423 | SourceLocation Loc = R->getLocation(); // FIXME |
| 1424 | MSInfo->setPointOfInstantiation(Loc); |
| 1425 | SemaRef.PendingLocalImplicitInstantiations.push_back( |
| 1426 | std::make_pair(Function, Loc)); |
| 1427 | queuedInstantiation = true; |
| 1428 | } |
| 1429 | } |
| 1430 | } |
| 1431 | break; |
| 1432 | default: |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1433 | if (const FunctionDecl *RPattern |
Gabor Greif | 6a557d8 | 2010-08-28 15:46:56 +0000 | [diff] [blame] | 1434 | = R->getTemplateInstantiationPattern()) |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 1435 | if (RPattern->isDefined(RPattern)) { |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1436 | SemaRef.Diag(Function->getLocation(), |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1437 | SemaRef.getLangOpts().CPlusPlus11 ? |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1438 | diag::warn_cxx98_compat_friend_redefinition : |
| 1439 | diag::err_redefinition) |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1440 | << Function->getDeclName(); |
Gabor Greif | 6a557d8 | 2010-08-28 15:46:56 +0000 | [diff] [blame] | 1441 | SemaRef.Diag(R->getLocation(), diag::note_previous_definition); |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1442 | if (!SemaRef.getLangOpts().CPlusPlus11) |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1443 | Function->setInvalidDecl(); |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1444 | break; |
| 1445 | } |
| 1446 | } |
| 1447 | } |
| 1448 | } |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1449 | } |
| 1450 | |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1451 | if (Function->isOverloadedOperator() && !DC->isRecord() && |
| 1452 | PrincipalDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) |
| 1453 | PrincipalDecl->setNonMemberOperator(); |
| 1454 | |
Sean Hunt | eb88ae5 | 2011-05-23 21:07:59 +0000 | [diff] [blame] | 1455 | assert(!D->isDefaulted() && "only methods should be defaulted"); |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1456 | return Function; |
| 1457 | } |
| 1458 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1459 | Decl * |
| 1460 | TemplateDeclInstantiator::VisitCXXMethodDecl(CXXMethodDecl *D, |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 1461 | TemplateParameterList *TemplateParams, |
| 1462 | bool IsClassScopeSpecialization) { |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1463 | FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1464 | if (FunctionTemplate && !TemplateParams) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1465 | // We are creating a function template specialization from a function |
| 1466 | // template. Check whether there is already a function template |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1467 | // specialization for this particular set of template arguments. |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1468 | ArrayRef<TemplateArgument> Innermost = TemplateArgs.getInnermost(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1469 | |
Douglas Gregor | 1e1e972 | 2012-03-28 14:34:23 +0000 | [diff] [blame] | 1470 | void *InsertPos = 0; |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1471 | FunctionDecl *SpecFunc |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1472 | = FunctionTemplate->findSpecialization(Innermost.begin(), |
| 1473 | Innermost.size(), |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1474 | InsertPos); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1475 | |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1476 | // If we already have a function template specialization, return it. |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1477 | if (SpecFunc) |
| 1478 | return SpecFunc; |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1479 | } |
| 1480 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1481 | bool isFriend; |
| 1482 | if (FunctionTemplate) |
| 1483 | isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1484 | else |
| 1485 | isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 1486 | |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1487 | bool MergeWithParentScope = (TemplateParams != 0) || |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1488 | !(isa<Decl>(Owner) && |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1489 | cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1490 | LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); |
Douglas Gregor | 48dd19b | 2009-05-14 21:44:34 +0000 | [diff] [blame] | 1491 | |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1492 | // Instantiate enclosing template arguments for friends. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1493 | SmallVector<TemplateParameterList *, 4> TempParamLists; |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1494 | unsigned NumTempParamLists = 0; |
| 1495 | if (isFriend && (NumTempParamLists = D->getNumTemplateParameterLists())) { |
| 1496 | TempParamLists.set_size(NumTempParamLists); |
| 1497 | for (unsigned I = 0; I != NumTempParamLists; ++I) { |
| 1498 | TemplateParameterList *TempParams = D->getTemplateParameterList(I); |
| 1499 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 1500 | if (!InstParams) |
| 1501 | return NULL; |
| 1502 | TempParamLists[I] = InstParams; |
| 1503 | } |
| 1504 | } |
| 1505 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1506 | SmallVector<ParmVarDecl *, 4> Params; |
Benjamin Kramer | dc370c1 | 2012-01-20 14:42:32 +0000 | [diff] [blame] | 1507 | TypeSourceInfo *TInfo = SubstFunctionType(D, Params); |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1508 | if (!TInfo) |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1509 | return 0; |
Douglas Gregor | 71074fd | 2012-09-13 21:56:43 +0000 | [diff] [blame] | 1510 | QualType T = adjustFunctionTypeForInstantiation(SemaRef.Context, D, TInfo); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1511 | |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 1512 | // \brief If the type of this function, after ignoring parentheses, |
| 1513 | // is not *directly* a function type, then we're instantiating a function |
| 1514 | // that was declared via a typedef, e.g., |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1515 | // |
| 1516 | // typedef int functype(int, int); |
| 1517 | // functype func; |
| 1518 | // |
| 1519 | // In this case, we'll just go instantiate the ParmVarDecls that we |
| 1520 | // synthesized in the method declaration. |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 1521 | if (!isa<FunctionProtoType>(T.IgnoreParens())) { |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1522 | assert(!Params.size() && "Instantiating type could not yield parameters"); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1523 | SmallVector<QualType, 4> ParamTypes; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1524 | if (SemaRef.SubstParmTypes(D->getLocation(), D->param_begin(), |
| 1525 | D->getNumParams(), TemplateArgs, ParamTypes, |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 1526 | &Params)) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1527 | return 0; |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1528 | } |
| 1529 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1530 | NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); |
| 1531 | if (QualifierLoc) { |
| 1532 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1533 | TemplateArgs); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1534 | if (!QualifierLoc) |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1535 | return 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1536 | } |
| 1537 | |
| 1538 | DeclContext *DC = Owner; |
| 1539 | if (isFriend) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1540 | if (QualifierLoc) { |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1541 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1542 | SS.Adopt(QualifierLoc); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1543 | DC = SemaRef.computeDeclContext(SS); |
John McCall | c54d688 | 2010-10-19 05:01:53 +0000 | [diff] [blame] | 1544 | |
| 1545 | if (DC && SemaRef.RequireCompleteDeclContext(SS, DC)) |
| 1546 | return 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1547 | } else { |
| 1548 | DC = SemaRef.FindInstantiatedContext(D->getLocation(), |
| 1549 | D->getDeclContext(), |
| 1550 | TemplateArgs); |
| 1551 | } |
| 1552 | if (!DC) return 0; |
| 1553 | } |
| 1554 | |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1555 | // Build the instantiated method declaration. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1556 | CXXRecordDecl *Record = cast<CXXRecordDecl>(DC); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1557 | CXXMethodDecl *Method = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1558 | |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1559 | SourceLocation StartLoc = D->getInnerLocStart(); |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1560 | DeclarationNameInfo NameInfo |
| 1561 | = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1562 | if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1563 | Method = CXXConstructorDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1564 | StartLoc, NameInfo, T, TInfo, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1565 | Constructor->isExplicit(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1566 | Constructor->isInlineSpecified(), |
Richard Smith | 86c3ae4 | 2012-02-13 03:54:03 +0000 | [diff] [blame] | 1567 | false, Constructor->isConstexpr()); |
Richard Smith | b5eb3f5 | 2013-05-17 02:19:35 +0000 | [diff] [blame] | 1568 | |
Richard Smith | 4841ca5 | 2013-04-10 05:48:59 +0000 | [diff] [blame] | 1569 | // Claim that the instantiation of a constructor or constructor template |
| 1570 | // inherits the same constructor that the template does. |
Richard Smith | b5eb3f5 | 2013-05-17 02:19:35 +0000 | [diff] [blame] | 1571 | if (CXXConstructorDecl *Inh = const_cast<CXXConstructorDecl *>( |
| 1572 | Constructor->getInheritedConstructor())) { |
| 1573 | // If we're instantiating a specialization of a function template, our |
| 1574 | // "inherited constructor" will actually itself be a function template. |
| 1575 | // Instantiate a declaration of it, too. |
| 1576 | if (FunctionTemplate) { |
| 1577 | assert(!TemplateParams && Inh->getDescribedFunctionTemplate() && |
| 1578 | !Inh->getParent()->isDependentContext() && |
| 1579 | "inheriting constructor template in dependent context?"); |
| 1580 | Sema::InstantiatingTemplate Inst(SemaRef, Constructor->getLocation(), |
| 1581 | Inh); |
| 1582 | if (Inst) |
| 1583 | return 0; |
| 1584 | Sema::ContextRAII SavedContext(SemaRef, Inh->getDeclContext()); |
| 1585 | LocalInstantiationScope LocalScope(SemaRef); |
| 1586 | |
| 1587 | // Use the same template arguments that we deduced for the inheriting |
| 1588 | // constructor. There's no way they could be deduced differently. |
| 1589 | MultiLevelTemplateArgumentList InheritedArgs; |
| 1590 | InheritedArgs.addOuterTemplateArguments(TemplateArgs.getInnermost()); |
| 1591 | Inh = cast_or_null<CXXConstructorDecl>( |
| 1592 | SemaRef.SubstDecl(Inh, Inh->getDeclContext(), InheritedArgs)); |
| 1593 | if (!Inh) |
| 1594 | return 0; |
| 1595 | } |
Richard Smith | 4841ca5 | 2013-04-10 05:48:59 +0000 | [diff] [blame] | 1596 | cast<CXXConstructorDecl>(Method)->setInheritedConstructor(Inh); |
Richard Smith | b5eb3f5 | 2013-05-17 02:19:35 +0000 | [diff] [blame] | 1597 | } |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1598 | } else if (CXXDestructorDecl *Destructor = dyn_cast<CXXDestructorDecl>(D)) { |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1599 | Method = CXXDestructorDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1600 | StartLoc, NameInfo, T, TInfo, |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1601 | Destructor->isInlineSpecified(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1602 | false); |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1603 | } else if (CXXConversionDecl *Conversion = dyn_cast<CXXConversionDecl>(D)) { |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1604 | Method = CXXConversionDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1605 | StartLoc, NameInfo, T, TInfo, |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 1606 | Conversion->isInlineSpecified(), |
Douglas Gregor | f525160 | 2011-03-08 17:10:18 +0000 | [diff] [blame] | 1607 | Conversion->isExplicit(), |
Richard Smith | 86c3ae4 | 2012-02-13 03:54:03 +0000 | [diff] [blame] | 1608 | Conversion->isConstexpr(), |
Richard Smith | 9f569cc | 2011-10-01 02:31:28 +0000 | [diff] [blame] | 1609 | Conversion->getLocEnd()); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1610 | } else { |
Rafael Espindola | 72fdc89 | 2013-04-15 12:38:20 +0000 | [diff] [blame] | 1611 | StorageClass SC = D->isStatic() ? SC_Static : SC_None; |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1612 | Method = CXXMethodDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1613 | StartLoc, NameInfo, T, TInfo, |
Rafael Espindola | 72fdc89 | 2013-04-15 12:38:20 +0000 | [diff] [blame] | 1614 | SC, D->isInlineSpecified(), |
Richard Smith | 86c3ae4 | 2012-02-13 03:54:03 +0000 | [diff] [blame] | 1615 | D->isConstexpr(), D->getLocEnd()); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1616 | } |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1617 | |
Richard Smith | d4497dd | 2013-01-25 00:08:28 +0000 | [diff] [blame] | 1618 | if (D->isInlined()) |
| 1619 | Method->setImplicitlyInline(); |
| 1620 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1621 | if (QualifierLoc) |
| 1622 | Method->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1623 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1624 | if (TemplateParams) { |
| 1625 | // Our resulting instantiation is actually a function template, since we |
| 1626 | // are substituting only the outer template parameters. For example, given |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1627 | // |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1628 | // template<typename T> |
| 1629 | // struct X { |
| 1630 | // template<typename U> void f(T, U); |
| 1631 | // }; |
| 1632 | // |
| 1633 | // X<int> x; |
| 1634 | // |
| 1635 | // We are instantiating the member template "f" within X<int>, which means |
| 1636 | // substituting int for T, but leaving "f" as a member function template. |
| 1637 | // Build the function template itself. |
| 1638 | FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, Record, |
| 1639 | Method->getLocation(), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1640 | Method->getDeclName(), |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1641 | TemplateParams, Method); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1642 | if (isFriend) { |
| 1643 | FunctionTemplate->setLexicalDeclContext(Owner); |
| 1644 | FunctionTemplate->setObjectOfFriendDecl(true); |
| 1645 | } else if (D->isOutOfLine()) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1646 | FunctionTemplate->setLexicalDeclContext(D->getLexicalDeclContext()); |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1647 | Method->setDescribedFunctionTemplate(FunctionTemplate); |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1648 | } else if (FunctionTemplate) { |
| 1649 | // Record this function template specialization. |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1650 | ArrayRef<TemplateArgument> Innermost = TemplateArgs.getInnermost(); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1651 | Method->setFunctionTemplateSpecialization(FunctionTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1652 | TemplateArgumentList::CreateCopy(SemaRef.Context, |
Richard Smith | c95d413 | 2013-05-03 23:46:09 +0000 | [diff] [blame] | 1653 | Innermost.begin(), |
| 1654 | Innermost.size()), |
Douglas Gregor | 1e1e972 | 2012-03-28 14:34:23 +0000 | [diff] [blame] | 1655 | /*InsertPos=*/0); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1656 | } else if (!isFriend) { |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1657 | // Record that this is an instantiation of a member function. |
Douglas Gregor | 2db3232 | 2009-10-07 23:56:10 +0000 | [diff] [blame] | 1658 | Method->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1659 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1660 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1661 | // If we are instantiating a member function defined |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 1662 | // out-of-line, the instantiation will have the same lexical |
| 1663 | // context (which will be a namespace scope) as the template. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1664 | if (isFriend) { |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1665 | if (NumTempParamLists) |
| 1666 | Method->setTemplateParameterListsInfo(SemaRef.Context, |
| 1667 | NumTempParamLists, |
| 1668 | TempParamLists.data()); |
| 1669 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1670 | Method->setLexicalDeclContext(Owner); |
| 1671 | Method->setObjectOfFriendDecl(true); |
| 1672 | } else if (D->isOutOfLine()) |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 1673 | Method->setLexicalDeclContext(D->getLexicalDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1674 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 1675 | // Attach the parameters |
| 1676 | for (unsigned P = 0; P < Params.size(); ++P) |
| 1677 | Params[P]->setOwningFunction(Method); |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 1678 | Method->setParams(Params); |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 1679 | |
| 1680 | if (InitMethodInstantiation(Method, D)) |
| 1681 | Method->setInvalidDecl(); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1682 | |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1683 | LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName, |
| 1684 | Sema::ForRedeclaration); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1685 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1686 | if (!FunctionTemplate || TemplateParams || isFriend) { |
| 1687 | SemaRef.LookupQualifiedName(Previous, Record); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1688 | |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1689 | // In C++, the previous declaration we find might be a tag type |
| 1690 | // (class or enum). In this case, the new declaration will hide the |
| 1691 | // tag type. Note that this does does not apply if we're declaring a |
| 1692 | // typedef (C++ [dcl.typedef]p4). |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1693 | if (Previous.isSingleTagDecl()) |
| 1694 | Previous.clear(); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1695 | } |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1696 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 1697 | if (!IsClassScopeSpecialization) |
Kaelyn Uhrain | 2c712f5 | 2011-10-11 00:28:45 +0000 | [diff] [blame] | 1698 | SemaRef.CheckFunctionDeclaration(0, Method, Previous, false); |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1699 | |
Douglas Gregor | 4ba3136 | 2009-12-01 17:24:26 +0000 | [diff] [blame] | 1700 | if (D->isPure()) |
| 1701 | SemaRef.CheckPureMethod(Method, SourceRange()); |
| 1702 | |
John McCall | 1f2e1a9 | 2012-08-10 03:15:35 +0000 | [diff] [blame] | 1703 | // Propagate access. For a non-friend declaration, the access is |
| 1704 | // whatever we're propagating from. For a friend, it should be the |
| 1705 | // previous declaration we just found. |
| 1706 | if (isFriend && Method->getPreviousDecl()) |
| 1707 | Method->setAccess(Method->getPreviousDecl()->getAccess()); |
| 1708 | else |
| 1709 | Method->setAccess(D->getAccess()); |
| 1710 | if (FunctionTemplate) |
| 1711 | FunctionTemplate->setAccess(Method->getAccess()); |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 1712 | |
Anders Carlsson | 9eefa22 | 2011-01-20 06:52:44 +0000 | [diff] [blame] | 1713 | SemaRef.CheckOverrideControl(Method); |
| 1714 | |
Eli Friedman | 3bc4515 | 2011-11-15 22:39:08 +0000 | [diff] [blame] | 1715 | // If a function is defined as defaulted or deleted, mark it as such now. |
Richard Smith | ac71351 | 2012-12-08 02:53:02 +0000 | [diff] [blame] | 1716 | if (D->isExplicitlyDefaulted()) |
| 1717 | SemaRef.SetDeclDefaulted(Method, Method->getLocation()); |
Eli Friedman | 3bc4515 | 2011-11-15 22:39:08 +0000 | [diff] [blame] | 1718 | if (D->isDeletedAsWritten()) |
Richard Smith | ac71351 | 2012-12-08 02:53:02 +0000 | [diff] [blame] | 1719 | SemaRef.SetDeclDeleted(Method, Method->getLocation()); |
Eli Friedman | 3bc4515 | 2011-11-15 22:39:08 +0000 | [diff] [blame] | 1720 | |
John McCall | 1f2e1a9 | 2012-08-10 03:15:35 +0000 | [diff] [blame] | 1721 | // If there's a function template, let our caller handle it. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1722 | if (FunctionTemplate) { |
John McCall | 1f2e1a9 | 2012-08-10 03:15:35 +0000 | [diff] [blame] | 1723 | // do nothing |
| 1724 | |
| 1725 | // Don't hide a (potentially) valid declaration with an invalid one. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1726 | } else if (Method->isInvalidDecl() && !Previous.empty()) { |
John McCall | 1f2e1a9 | 2012-08-10 03:15:35 +0000 | [diff] [blame] | 1727 | // do nothing |
| 1728 | |
| 1729 | // Otherwise, check access to friends and make them visible. |
| 1730 | } else if (isFriend) { |
| 1731 | // We only need to re-check access for methods which we didn't |
| 1732 | // manage to match during parsing. |
| 1733 | if (!D->getPreviousDecl()) |
| 1734 | SemaRef.CheckFriendAccess(Method); |
| 1735 | |
| 1736 | Record->makeDeclVisibleInContext(Method); |
| 1737 | |
| 1738 | // Otherwise, add the declaration. We don't need to do this for |
| 1739 | // class-scope specializations because we'll have matched them with |
| 1740 | // the appropriate template. |
| 1741 | } else if (!IsClassScopeSpecialization) { |
| 1742 | Owner->addDecl(Method); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1743 | } |
Sean Hunt | eb88ae5 | 2011-05-23 21:07:59 +0000 | [diff] [blame] | 1744 | |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1745 | return Method; |
| 1746 | } |
| 1747 | |
Douglas Gregor | 615c5d4 | 2009-03-24 16:43:20 +0000 | [diff] [blame] | 1748 | Decl *TemplateDeclInstantiator::VisitCXXConstructorDecl(CXXConstructorDecl *D) { |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1749 | return VisitCXXMethodDecl(D); |
Douglas Gregor | 615c5d4 | 2009-03-24 16:43:20 +0000 | [diff] [blame] | 1750 | } |
| 1751 | |
Douglas Gregor | 03b2b07 | 2009-03-24 00:15:49 +0000 | [diff] [blame] | 1752 | Decl *TemplateDeclInstantiator::VisitCXXDestructorDecl(CXXDestructorDecl *D) { |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1753 | return VisitCXXMethodDecl(D); |
Douglas Gregor | 03b2b07 | 2009-03-24 00:15:49 +0000 | [diff] [blame] | 1754 | } |
| 1755 | |
Douglas Gregor | bb969ed | 2009-03-25 00:34:44 +0000 | [diff] [blame] | 1756 | Decl *TemplateDeclInstantiator::VisitCXXConversionDecl(CXXConversionDecl *D) { |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1757 | return VisitCXXMethodDecl(D); |
Douglas Gregor | bb969ed | 2009-03-25 00:34:44 +0000 | [diff] [blame] | 1758 | } |
| 1759 | |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 1760 | ParmVarDecl *TemplateDeclInstantiator::VisitParmVarDecl(ParmVarDecl *D) { |
David Blaikie | 66874fb | 2013-02-21 01:47:18 +0000 | [diff] [blame] | 1761 | return SemaRef.SubstParmVarDecl(D, TemplateArgs, /*indexAdjustment*/ 0, None, |
| 1762 | /*ExpectParameterPack=*/ false); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1763 | } |
| 1764 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1765 | Decl *TemplateDeclInstantiator::VisitTemplateTypeParmDecl( |
| 1766 | TemplateTypeParmDecl *D) { |
| 1767 | // TODO: don't always clone when decls are refcounted. |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 1768 | assert(D->getTypeForDecl()->isTemplateTypeParmType()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1769 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1770 | TemplateTypeParmDecl *Inst = |
Abramo Bagnara | 344577e | 2011-03-06 15:48:19 +0000 | [diff] [blame] | 1771 | TemplateTypeParmDecl::Create(SemaRef.Context, Owner, |
| 1772 | D->getLocStart(), D->getLocation(), |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 1773 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1774 | D->getIndex(), D->getIdentifier(), |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1775 | D->wasDeclaredWithTypename(), |
| 1776 | D->isParameterPack()); |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1777 | Inst->setAccess(AS_public); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1778 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1779 | if (D->hasDefaultArgument()) |
| 1780 | Inst->setDefaultArgument(D->getDefaultArgumentInfo(), false); |
| 1781 | |
| 1782 | // Introduce this template parameter's instantiation into the instantiation |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1783 | // scope. |
| 1784 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Inst); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1785 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1786 | return Inst; |
| 1787 | } |
| 1788 | |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1789 | Decl *TemplateDeclInstantiator::VisitNonTypeTemplateParmDecl( |
| 1790 | NonTypeTemplateParmDecl *D) { |
| 1791 | // Substitute into the type of the non-type template parameter. |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1792 | TypeLoc TL = D->getTypeSourceInfo()->getTypeLoc(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1793 | SmallVector<TypeSourceInfo *, 4> ExpandedParameterPackTypesAsWritten; |
| 1794 | SmallVector<QualType, 4> ExpandedParameterPackTypes; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1795 | bool IsExpandedParameterPack = false; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1796 | TypeSourceInfo *DI; |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1797 | QualType T; |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1798 | bool Invalid = false; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1799 | |
| 1800 | if (D->isExpandedParameterPack()) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1801 | // The non-type template parameter pack is an already-expanded pack |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1802 | // expansion of types. Substitute into each of the expanded types. |
| 1803 | ExpandedParameterPackTypes.reserve(D->getNumExpansionTypes()); |
| 1804 | ExpandedParameterPackTypesAsWritten.reserve(D->getNumExpansionTypes()); |
| 1805 | for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { |
| 1806 | TypeSourceInfo *NewDI =SemaRef.SubstType(D->getExpansionTypeSourceInfo(I), |
| 1807 | TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1808 | D->getLocation(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1809 | D->getDeclName()); |
| 1810 | if (!NewDI) |
| 1811 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1812 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1813 | ExpandedParameterPackTypesAsWritten.push_back(NewDI); |
| 1814 | QualType NewT =SemaRef.CheckNonTypeTemplateParameterType(NewDI->getType(), |
| 1815 | D->getLocation()); |
| 1816 | if (NewT.isNull()) |
| 1817 | return 0; |
| 1818 | ExpandedParameterPackTypes.push_back(NewT); |
| 1819 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1820 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1821 | IsExpandedParameterPack = true; |
| 1822 | DI = D->getTypeSourceInfo(); |
| 1823 | T = DI->getType(); |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 1824 | } else if (D->isPackExpansion()) { |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1825 | // The non-type template parameter pack's type is a pack expansion of types. |
| 1826 | // Determine whether we need to expand this parameter pack into separate |
| 1827 | // types. |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 1828 | PackExpansionTypeLoc Expansion = TL.castAs<PackExpansionTypeLoc>(); |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1829 | TypeLoc Pattern = Expansion.getPatternLoc(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1830 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1831 | SemaRef.collectUnexpandedParameterPacks(Pattern, Unexpanded); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1832 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1833 | // Determine whether the set of unexpanded parameter packs can and should |
| 1834 | // be expanded. |
| 1835 | bool Expand = true; |
| 1836 | bool RetainExpansion = false; |
David Blaikie | dc84cd5 | 2013-02-20 22:23:23 +0000 | [diff] [blame] | 1837 | Optional<unsigned> OrigNumExpansions |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1838 | = Expansion.getTypePtr()->getNumExpansions(); |
David Blaikie | dc84cd5 | 2013-02-20 22:23:23 +0000 | [diff] [blame] | 1839 | Optional<unsigned> NumExpansions = OrigNumExpansions; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1840 | if (SemaRef.CheckParameterPacksForExpansion(Expansion.getEllipsisLoc(), |
| 1841 | Pattern.getSourceRange(), |
David Blaikie | a71f9d0 | 2011-09-22 02:34:54 +0000 | [diff] [blame] | 1842 | Unexpanded, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1843 | TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1844 | Expand, RetainExpansion, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1845 | NumExpansions)) |
| 1846 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1847 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1848 | if (Expand) { |
| 1849 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
| 1850 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, I); |
| 1851 | TypeSourceInfo *NewDI = SemaRef.SubstType(Pattern, TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1852 | D->getLocation(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1853 | D->getDeclName()); |
| 1854 | if (!NewDI) |
| 1855 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1856 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1857 | ExpandedParameterPackTypesAsWritten.push_back(NewDI); |
| 1858 | QualType NewT = SemaRef.CheckNonTypeTemplateParameterType( |
| 1859 | NewDI->getType(), |
| 1860 | D->getLocation()); |
| 1861 | if (NewT.isNull()) |
| 1862 | return 0; |
| 1863 | ExpandedParameterPackTypes.push_back(NewT); |
| 1864 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1865 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1866 | // Note that we have an expanded parameter pack. The "type" of this |
| 1867 | // expanded parameter pack is the original expansion type, but callers |
| 1868 | // will end up using the expanded parameter pack types for type-checking. |
| 1869 | IsExpandedParameterPack = true; |
| 1870 | DI = D->getTypeSourceInfo(); |
| 1871 | T = DI->getType(); |
| 1872 | } else { |
| 1873 | // We cannot fully expand the pack expansion now, so substitute into the |
| 1874 | // pattern and create a new pack expansion type. |
| 1875 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
| 1876 | TypeSourceInfo *NewPattern = SemaRef.SubstType(Pattern, TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1877 | D->getLocation(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1878 | D->getDeclName()); |
| 1879 | if (!NewPattern) |
| 1880 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1881 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1882 | DI = SemaRef.CheckPackExpansion(NewPattern, Expansion.getEllipsisLoc(), |
| 1883 | NumExpansions); |
| 1884 | if (!DI) |
| 1885 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1886 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1887 | T = DI->getType(); |
| 1888 | } |
| 1889 | } else { |
| 1890 | // Simple case: substitution into a parameter that is not a parameter pack. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1891 | DI = SemaRef.SubstType(D->getTypeSourceInfo(), TemplateArgs, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1892 | D->getLocation(), D->getDeclName()); |
| 1893 | if (!DI) |
| 1894 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1895 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1896 | // Check that this type is acceptable for a non-type template parameter. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1897 | T = SemaRef.CheckNonTypeTemplateParameterType(DI->getType(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1898 | D->getLocation()); |
| 1899 | if (T.isNull()) { |
| 1900 | T = SemaRef.Context.IntTy; |
| 1901 | Invalid = true; |
| 1902 | } |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1903 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1904 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1905 | NonTypeTemplateParmDecl *Param; |
| 1906 | if (IsExpandedParameterPack) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1907 | Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1908 | D->getInnerLocStart(), |
| 1909 | D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1910 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1911 | D->getPosition(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1912 | D->getIdentifier(), T, |
| 1913 | DI, |
| 1914 | ExpandedParameterPackTypes.data(), |
| 1915 | ExpandedParameterPackTypes.size(), |
| 1916 | ExpandedParameterPackTypesAsWritten.data()); |
| 1917 | else |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1918 | Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1919 | D->getInnerLocStart(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1920 | D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1921 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1922 | D->getPosition(), |
| 1923 | D->getIdentifier(), T, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1924 | D->isParameterPack(), DI); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1925 | |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1926 | Param->setAccess(AS_public); |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1927 | if (Invalid) |
| 1928 | Param->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1929 | |
Abramo Bagnara | d92f7a2 | 2010-06-09 09:26:05 +0000 | [diff] [blame] | 1930 | Param->setDefaultArgument(D->getDefaultArgument(), false); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1931 | |
| 1932 | // Introduce this template parameter's instantiation into the instantiation |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1933 | // scope. |
| 1934 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1935 | return Param; |
| 1936 | } |
| 1937 | |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 1938 | static void collectUnexpandedParameterPacks( |
| 1939 | Sema &S, |
| 1940 | TemplateParameterList *Params, |
| 1941 | SmallVectorImpl<UnexpandedParameterPack> &Unexpanded) { |
| 1942 | for (TemplateParameterList::const_iterator I = Params->begin(), |
| 1943 | E = Params->end(); I != E; ++I) { |
| 1944 | if ((*I)->isTemplateParameterPack()) |
| 1945 | continue; |
| 1946 | if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*I)) |
| 1947 | S.collectUnexpandedParameterPacks(NTTP->getTypeSourceInfo()->getTypeLoc(), |
| 1948 | Unexpanded); |
| 1949 | if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(*I)) |
| 1950 | collectUnexpandedParameterPacks(S, TTP->getTemplateParameters(), |
| 1951 | Unexpanded); |
| 1952 | } |
| 1953 | } |
| 1954 | |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1955 | Decl * |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1956 | TemplateDeclInstantiator::VisitTemplateTemplateParmDecl( |
| 1957 | TemplateTemplateParmDecl *D) { |
| 1958 | // Instantiate the template parameter list of the template template parameter. |
| 1959 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 1960 | TemplateParameterList *InstParams; |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 1961 | SmallVector<TemplateParameterList*, 8> ExpandedParams; |
| 1962 | |
| 1963 | bool IsExpandedParameterPack = false; |
| 1964 | |
| 1965 | if (D->isExpandedParameterPack()) { |
| 1966 | // The template template parameter pack is an already-expanded pack |
| 1967 | // expansion of template parameters. Substitute into each of the expanded |
| 1968 | // parameters. |
| 1969 | ExpandedParams.reserve(D->getNumExpansionTemplateParameters()); |
| 1970 | for (unsigned I = 0, N = D->getNumExpansionTemplateParameters(); |
| 1971 | I != N; ++I) { |
| 1972 | LocalInstantiationScope Scope(SemaRef); |
| 1973 | TemplateParameterList *Expansion = |
| 1974 | SubstTemplateParams(D->getExpansionTemplateParameters(I)); |
| 1975 | if (!Expansion) |
| 1976 | return 0; |
| 1977 | ExpandedParams.push_back(Expansion); |
| 1978 | } |
| 1979 | |
| 1980 | IsExpandedParameterPack = true; |
| 1981 | InstParams = TempParams; |
| 1982 | } else if (D->isPackExpansion()) { |
| 1983 | // The template template parameter pack expands to a pack of template |
| 1984 | // template parameters. Determine whether we need to expand this parameter |
| 1985 | // pack into separate parameters. |
| 1986 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
| 1987 | collectUnexpandedParameterPacks(SemaRef, D->getTemplateParameters(), |
| 1988 | Unexpanded); |
| 1989 | |
| 1990 | // Determine whether the set of unexpanded parameter packs can and should |
| 1991 | // be expanded. |
| 1992 | bool Expand = true; |
| 1993 | bool RetainExpansion = false; |
David Blaikie | dc84cd5 | 2013-02-20 22:23:23 +0000 | [diff] [blame] | 1994 | Optional<unsigned> NumExpansions; |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 1995 | if (SemaRef.CheckParameterPacksForExpansion(D->getLocation(), |
| 1996 | TempParams->getSourceRange(), |
| 1997 | Unexpanded, |
| 1998 | TemplateArgs, |
| 1999 | Expand, RetainExpansion, |
| 2000 | NumExpansions)) |
| 2001 | return 0; |
| 2002 | |
| 2003 | if (Expand) { |
| 2004 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
| 2005 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, I); |
| 2006 | LocalInstantiationScope Scope(SemaRef); |
| 2007 | TemplateParameterList *Expansion = SubstTemplateParams(TempParams); |
| 2008 | if (!Expansion) |
| 2009 | return 0; |
| 2010 | ExpandedParams.push_back(Expansion); |
| 2011 | } |
| 2012 | |
| 2013 | // Note that we have an expanded parameter pack. The "type" of this |
| 2014 | // expanded parameter pack is the original expansion type, but callers |
| 2015 | // will end up using the expanded parameter pack types for type-checking. |
| 2016 | IsExpandedParameterPack = true; |
| 2017 | InstParams = TempParams; |
| 2018 | } else { |
| 2019 | // We cannot fully expand the pack expansion now, so just substitute |
| 2020 | // into the pattern. |
| 2021 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
| 2022 | |
| 2023 | LocalInstantiationScope Scope(SemaRef); |
| 2024 | InstParams = SubstTemplateParams(TempParams); |
| 2025 | if (!InstParams) |
| 2026 | return 0; |
| 2027 | } |
| 2028 | } else { |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 2029 | // Perform the actual substitution of template parameters within a new, |
| 2030 | // local instantiation scope. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 2031 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 2032 | InstParams = SubstTemplateParams(TempParams); |
| 2033 | if (!InstParams) |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 2034 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2035 | } |
| 2036 | |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 2037 | // Build the template template parameter. |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 2038 | TemplateTemplateParmDecl *Param; |
| 2039 | if (IsExpandedParameterPack) |
| 2040 | Param = TemplateTemplateParmDecl::Create(SemaRef.Context, Owner, |
| 2041 | D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2042 | D->getDepth() - TemplateArgs.getNumLevels(), |
Richard Smith | 6964b3f | 2012-09-07 02:06:42 +0000 | [diff] [blame] | 2043 | D->getPosition(), |
| 2044 | D->getIdentifier(), InstParams, |
| 2045 | ExpandedParams); |
| 2046 | else |
| 2047 | Param = TemplateTemplateParmDecl::Create(SemaRef.Context, Owner, |
| 2048 | D->getLocation(), |
| 2049 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 2050 | D->getPosition(), |
| 2051 | D->isParameterPack(), |
| 2052 | D->getIdentifier(), InstParams); |
Abramo Bagnara | d92f7a2 | 2010-06-09 09:26:05 +0000 | [diff] [blame] | 2053 | Param->setDefaultArgument(D->getDefaultArgument(), false); |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 2054 | Param->setAccess(AS_public); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2055 | |
| 2056 | // Introduce this template parameter's instantiation into the instantiation |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 2057 | // scope. |
| 2058 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2059 | |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 2060 | return Param; |
| 2061 | } |
| 2062 | |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 2063 | Decl *TemplateDeclInstantiator::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { |
Douglas Gregor | db99241 | 2011-02-25 16:33:46 +0000 | [diff] [blame] | 2064 | // Using directives are never dependent (and never contain any types or |
| 2065 | // expressions), so they require no explicit instantiation work. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2066 | |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 2067 | UsingDirectiveDecl *Inst |
| 2068 | = UsingDirectiveDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2069 | D->getNamespaceKeyLocation(), |
Douglas Gregor | db99241 | 2011-02-25 16:33:46 +0000 | [diff] [blame] | 2070 | D->getQualifierLoc(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2071 | D->getIdentLocation(), |
| 2072 | D->getNominatedNamespace(), |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 2073 | D->getCommonAncestor()); |
Abramo Bagnara | 536afbe | 2012-09-05 09:55:10 +0000 | [diff] [blame] | 2074 | |
| 2075 | // Add the using directive to its declaration context |
| 2076 | // only if this is not a function or method. |
| 2077 | if (!Owner->isFunctionOrMethod()) |
| 2078 | Owner->addDecl(Inst); |
| 2079 | |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 2080 | return Inst; |
| 2081 | } |
| 2082 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2083 | Decl *TemplateDeclInstantiator::VisitUsingDecl(UsingDecl *D) { |
Douglas Gregor | 1b39820 | 2010-09-29 17:58:28 +0000 | [diff] [blame] | 2084 | |
| 2085 | // The nested name specifier may be dependent, for example |
| 2086 | // template <typename T> struct t { |
| 2087 | // struct s1 { T f1(); }; |
| 2088 | // struct s2 : s1 { using s1::f1; }; |
| 2089 | // }; |
| 2090 | // template struct t<int>; |
| 2091 | // Here, in using s1::f1, s1 refers to t<T>::s1; |
| 2092 | // we need to substitute for t<int>::s1. |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2093 | NestedNameSpecifierLoc QualifierLoc |
| 2094 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), |
| 2095 | TemplateArgs); |
| 2096 | if (!QualifierLoc) |
Douglas Gregor | dc35571 | 2011-02-25 00:36:19 +0000 | [diff] [blame] | 2097 | return 0; |
Douglas Gregor | 1b39820 | 2010-09-29 17:58:28 +0000 | [diff] [blame] | 2098 | |
| 2099 | // The name info is non-dependent, so no transformation |
| 2100 | // is required. |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2101 | DeclarationNameInfo NameInfo = D->getNameInfo(); |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2102 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2103 | // We only need to do redeclaration lookups if we're in a class |
| 2104 | // scope (in fact, it's not really even possible in non-class |
| 2105 | // scopes). |
| 2106 | bool CheckRedeclaration = Owner->isRecord(); |
| 2107 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2108 | LookupResult Prev(SemaRef, NameInfo, Sema::LookupUsingDeclName, |
| 2109 | Sema::ForRedeclaration); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2110 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2111 | UsingDecl *NewUD = UsingDecl::Create(SemaRef.Context, Owner, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2112 | D->getUsingLocation(), |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2113 | QualifierLoc, |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2114 | NameInfo, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2115 | D->isTypeName()); |
| 2116 | |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2117 | CXXScopeSpec SS; |
| 2118 | SS.Adopt(QualifierLoc); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2119 | if (CheckRedeclaration) { |
| 2120 | Prev.setHideTags(false); |
| 2121 | SemaRef.LookupQualifiedName(Prev, Owner); |
| 2122 | |
| 2123 | // Check for invalid redeclarations. |
| 2124 | if (SemaRef.CheckUsingDeclRedeclaration(D->getUsingLocation(), |
| 2125 | D->isTypeName(), SS, |
| 2126 | D->getLocation(), Prev)) |
| 2127 | NewUD->setInvalidDecl(); |
| 2128 | |
| 2129 | } |
| 2130 | |
| 2131 | if (!NewUD->isInvalidDecl() && |
| 2132 | SemaRef.CheckUsingDeclQualifier(D->getUsingLocation(), SS, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2133 | D->getLocation())) |
| 2134 | NewUD->setInvalidDecl(); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2135 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2136 | SemaRef.Context.setInstantiatedFromUsingDecl(NewUD, D); |
| 2137 | NewUD->setAccess(D->getAccess()); |
| 2138 | Owner->addDecl(NewUD); |
| 2139 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2140 | // Don't process the shadow decls for an invalid decl. |
| 2141 | if (NewUD->isInvalidDecl()) |
| 2142 | return NewUD; |
| 2143 | |
Richard Smith | c5a89a1 | 2012-04-02 01:30:27 +0000 | [diff] [blame] | 2144 | if (NameInfo.getName().getNameKind() == DeclarationName::CXXConstructorName) { |
| 2145 | if (SemaRef.CheckInheritingConstructorUsingDecl(NewUD)) |
| 2146 | NewUD->setInvalidDecl(); |
| 2147 | return NewUD; |
| 2148 | } |
| 2149 | |
John McCall | 323c310 | 2009-12-22 22:26:37 +0000 | [diff] [blame] | 2150 | bool isFunctionScope = Owner->isFunctionOrMethod(); |
| 2151 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2152 | // Process the shadow decls. |
| 2153 | for (UsingDecl::shadow_iterator I = D->shadow_begin(), E = D->shadow_end(); |
| 2154 | I != E; ++I) { |
| 2155 | UsingShadowDecl *Shadow = *I; |
| 2156 | NamedDecl *InstTarget = |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2157 | cast_or_null<NamedDecl>(SemaRef.FindInstantiatedDecl( |
| 2158 | Shadow->getLocation(), |
| 2159 | Shadow->getTargetDecl(), |
| 2160 | TemplateArgs)); |
| 2161 | if (!InstTarget) |
| 2162 | return 0; |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2163 | |
| 2164 | if (CheckRedeclaration && |
| 2165 | SemaRef.CheckUsingShadowDecl(NewUD, InstTarget, Prev)) |
| 2166 | continue; |
| 2167 | |
| 2168 | UsingShadowDecl *InstShadow |
| 2169 | = SemaRef.BuildUsingShadowDecl(/*Scope*/ 0, NewUD, InstTarget); |
| 2170 | SemaRef.Context.setInstantiatedFromUsingShadowDecl(InstShadow, Shadow); |
John McCall | 323c310 | 2009-12-22 22:26:37 +0000 | [diff] [blame] | 2171 | |
| 2172 | if (isFunctionScope) |
| 2173 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(Shadow, InstShadow); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2174 | } |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2175 | |
| 2176 | return NewUD; |
| 2177 | } |
| 2178 | |
| 2179 | Decl *TemplateDeclInstantiator::VisitUsingShadowDecl(UsingShadowDecl *D) { |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 2180 | // Ignore these; we handle them in bulk when processing the UsingDecl. |
| 2181 | return 0; |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2182 | } |
| 2183 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2184 | Decl * TemplateDeclInstantiator |
| 2185 | ::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2186 | NestedNameSpecifierLoc QualifierLoc |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2187 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2188 | TemplateArgs); |
| 2189 | if (!QualifierLoc) |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 2190 | return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2191 | |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 2192 | CXXScopeSpec SS; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2193 | SS.Adopt(QualifierLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2194 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2195 | // Since NameInfo refers to a typename, it cannot be a C++ special name. |
Benjamin Kramer | accaf19 | 2012-11-14 15:08:31 +0000 | [diff] [blame] | 2196 | // Hence, no transformation is required for it. |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2197 | DeclarationNameInfo NameInfo(D->getDeclName(), D->getLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2198 | NamedDecl *UD = |
John McCall | 9488ea1 | 2009-11-17 05:59:44 +0000 | [diff] [blame] | 2199 | SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2200 | D->getUsingLoc(), SS, NameInfo, 0, |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2201 | /*instantiation*/ true, |
| 2202 | /*typename*/ true, D->getTypenameLoc()); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 2203 | if (UD) |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2204 | SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); |
| 2205 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2206 | return UD; |
| 2207 | } |
| 2208 | |
| 2209 | Decl * TemplateDeclInstantiator |
| 2210 | ::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2211 | NestedNameSpecifierLoc QualifierLoc |
| 2212 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), TemplateArgs); |
| 2213 | if (!QualifierLoc) |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2214 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2215 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2216 | CXXScopeSpec SS; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 2217 | SS.Adopt(QualifierLoc); |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2218 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2219 | DeclarationNameInfo NameInfo |
| 2220 | = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); |
| 2221 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2222 | NamedDecl *UD = |
| 2223 | SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 2224 | D->getUsingLoc(), SS, NameInfo, 0, |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2225 | /*instantiation*/ true, |
| 2226 | /*typename*/ false, SourceLocation()); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 2227 | if (UD) |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2228 | SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); |
| 2229 | |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2230 | return UD; |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 2231 | } |
| 2232 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 2233 | |
| 2234 | Decl *TemplateDeclInstantiator::VisitClassScopeFunctionSpecializationDecl( |
| 2235 | ClassScopeFunctionSpecializationDecl *Decl) { |
| 2236 | CXXMethodDecl *OldFD = Decl->getSpecialization(); |
Nico Weber | 6b02009 | 2012-06-25 17:21:05 +0000 | [diff] [blame] | 2237 | CXXMethodDecl *NewFD = cast<CXXMethodDecl>(VisitCXXMethodDecl(OldFD, |
| 2238 | 0, true)); |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 2239 | |
| 2240 | LookupResult Previous(SemaRef, NewFD->getNameInfo(), Sema::LookupOrdinaryName, |
| 2241 | Sema::ForRedeclaration); |
| 2242 | |
Nico Weber | 6b02009 | 2012-06-25 17:21:05 +0000 | [diff] [blame] | 2243 | TemplateArgumentListInfo TemplateArgs; |
| 2244 | TemplateArgumentListInfo* TemplateArgsPtr = 0; |
| 2245 | if (Decl->hasExplicitTemplateArgs()) { |
| 2246 | TemplateArgs = Decl->templateArgs(); |
| 2247 | TemplateArgsPtr = &TemplateArgs; |
| 2248 | } |
| 2249 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 2250 | SemaRef.LookupQualifiedName(Previous, SemaRef.CurContext); |
Nico Weber | 6b02009 | 2012-06-25 17:21:05 +0000 | [diff] [blame] | 2251 | if (SemaRef.CheckFunctionTemplateSpecialization(NewFD, TemplateArgsPtr, |
| 2252 | Previous)) { |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 2253 | NewFD->setInvalidDecl(); |
| 2254 | return NewFD; |
| 2255 | } |
| 2256 | |
| 2257 | // Associate the specialization with the pattern. |
| 2258 | FunctionDecl *Specialization = cast<FunctionDecl>(Previous.getFoundDecl()); |
| 2259 | assert(Specialization && "Class scope Specialization is null"); |
| 2260 | SemaRef.Context.setClassScopeSpecializationPattern(Specialization, OldFD); |
| 2261 | |
| 2262 | return NewFD; |
| 2263 | } |
| 2264 | |
Alexey Bataev | c640058 | 2013-03-22 06:34:35 +0000 | [diff] [blame] | 2265 | Decl *TemplateDeclInstantiator::VisitOMPThreadPrivateDecl( |
| 2266 | OMPThreadPrivateDecl *D) { |
Alexey Bataev | 6af701f | 2013-05-13 04:18:18 +0000 | [diff] [blame] | 2267 | SmallVector<Expr *, 5> Vars; |
| 2268 | for (ArrayRef<Expr *>::iterator I = D->varlist_begin(), |
| 2269 | E = D->varlist_end(); |
Alexey Bataev | c640058 | 2013-03-22 06:34:35 +0000 | [diff] [blame] | 2270 | I != E; ++I) { |
| 2271 | Expr *Var = SemaRef.SubstExpr(*I, TemplateArgs).take(); |
| 2272 | assert(isa<DeclRefExpr>(Var) && "threadprivate arg is not a DeclRefExpr"); |
Alexey Bataev | 6af701f | 2013-05-13 04:18:18 +0000 | [diff] [blame] | 2273 | Vars.push_back(Var); |
Alexey Bataev | c640058 | 2013-03-22 06:34:35 +0000 | [diff] [blame] | 2274 | } |
| 2275 | |
| 2276 | OMPThreadPrivateDecl *TD = |
| 2277 | SemaRef.CheckOMPThreadPrivateDecl(D->getLocation(), Vars); |
| 2278 | |
| 2279 | return TD; |
| 2280 | } |
| 2281 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2282 | Decl *Sema::SubstDecl(Decl *D, DeclContext *Owner, |
Douglas Gregor | d6350ae | 2009-08-28 20:31:08 +0000 | [diff] [blame] | 2283 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Douglas Gregor | 7e06390 | 2009-05-11 23:53:27 +0000 | [diff] [blame] | 2284 | TemplateDeclInstantiator Instantiator(*this, Owner, TemplateArgs); |
Douglas Gregor | 2fa9800 | 2010-02-16 19:28:15 +0000 | [diff] [blame] | 2285 | if (D->isInvalidDecl()) |
| 2286 | return 0; |
| 2287 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 2288 | return Instantiator.Visit(D); |
| 2289 | } |
| 2290 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2291 | /// \brief Instantiates a nested template parameter list in the current |
| 2292 | /// instantiation context. |
| 2293 | /// |
| 2294 | /// \param L The parameter list to instantiate |
| 2295 | /// |
| 2296 | /// \returns NULL if there was an error |
| 2297 | TemplateParameterList * |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2298 | TemplateDeclInstantiator::SubstTemplateParams(TemplateParameterList *L) { |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2299 | // Get errors for all the parameters before bailing out. |
| 2300 | bool Invalid = false; |
| 2301 | |
| 2302 | unsigned N = L->size(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2303 | typedef SmallVector<NamedDecl *, 8> ParamVector; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2304 | ParamVector Params; |
| 2305 | Params.reserve(N); |
| 2306 | for (TemplateParameterList::iterator PI = L->begin(), PE = L->end(); |
| 2307 | PI != PE; ++PI) { |
Douglas Gregor | bf4ea56 | 2009-09-15 16:23:51 +0000 | [diff] [blame] | 2308 | NamedDecl *D = cast_or_null<NamedDecl>(Visit(*PI)); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2309 | Params.push_back(D); |
Douglas Gregor | 9148c3f | 2009-11-11 19:13:48 +0000 | [diff] [blame] | 2310 | Invalid = Invalid || !D || D->isInvalidDecl(); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2311 | } |
| 2312 | |
| 2313 | // Clean up if we had an error. |
Douglas Gregor | ff331c1 | 2010-07-25 18:17:45 +0000 | [diff] [blame] | 2314 | if (Invalid) |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2315 | return NULL; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2316 | |
| 2317 | TemplateParameterList *InstL |
| 2318 | = TemplateParameterList::Create(SemaRef.Context, L->getTemplateLoc(), |
| 2319 | L->getLAngleLoc(), &Params.front(), N, |
| 2320 | L->getRAngleLoc()); |
| 2321 | return InstL; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2322 | } |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 2323 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2324 | /// \brief Instantiate the declaration of a class template partial |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2325 | /// specialization. |
| 2326 | /// |
| 2327 | /// \param ClassTemplate the (instantiated) class template that is partially |
| 2328 | // specialized by the instantiation of \p PartialSpec. |
| 2329 | /// |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2330 | /// \param PartialSpec the (uninstantiated) class template partial |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2331 | /// specialization that we are instantiating. |
| 2332 | /// |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2333 | /// \returns The instantiated partial specialization, if successful; otherwise, |
| 2334 | /// NULL to indicate an error. |
| 2335 | ClassTemplatePartialSpecializationDecl * |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2336 | TemplateDeclInstantiator::InstantiateClassTemplatePartialSpecialization( |
| 2337 | ClassTemplateDecl *ClassTemplate, |
| 2338 | ClassTemplatePartialSpecializationDecl *PartialSpec) { |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 2339 | // Create a local instantiation scope for this class template partial |
| 2340 | // specialization, which will contain the instantiations of the template |
| 2341 | // parameters. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 2342 | LocalInstantiationScope Scope(SemaRef); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2343 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2344 | // Substitute into the template parameters of the class template partial |
| 2345 | // specialization. |
| 2346 | TemplateParameterList *TempParams = PartialSpec->getTemplateParameters(); |
| 2347 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 2348 | if (!InstParams) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2349 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2350 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2351 | // Substitute into the template arguments of the class template partial |
| 2352 | // specialization. |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2353 | TemplateArgumentListInfo InstTemplateArgs; // no angle locations |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2354 | if (SemaRef.Subst(PartialSpec->getTemplateArgsAsWritten(), |
| 2355 | PartialSpec->getNumTemplateArgsAsWritten(), |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 2356 | InstTemplateArgs, TemplateArgs)) |
| 2357 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2358 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2359 | // Check that the template argument list is well-formed for this |
| 2360 | // class template. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2361 | SmallVector<TemplateArgument, 4> Converted; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2362 | if (SemaRef.CheckTemplateArgumentList(ClassTemplate, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2363 | PartialSpec->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2364 | InstTemplateArgs, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2365 | false, |
| 2366 | Converted)) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2367 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2368 | |
| 2369 | // Figure out where to insert this class template partial specialization |
| 2370 | // in the member template's set of class template partial specializations. |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2371 | void *InsertPos = 0; |
| 2372 | ClassTemplateSpecializationDecl *PrevDecl |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2373 | = ClassTemplate->findPartialSpecialization(Converted.data(), |
| 2374 | Converted.size(), InsertPos); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2375 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2376 | // Build the canonical type that describes the converted template |
| 2377 | // arguments of the class template partial specialization. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2378 | QualType CanonType |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2379 | = SemaRef.Context.getTemplateSpecializationType(TemplateName(ClassTemplate), |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2380 | Converted.data(), |
| 2381 | Converted.size()); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2382 | |
| 2383 | // Build the fully-sugared type for this class template |
| 2384 | // specialization as the user wrote in the specialization |
| 2385 | // itself. This means that we'll pretty-print the type retrieved |
| 2386 | // from the specialization's declaration the way that the user |
| 2387 | // actually wrote the specialization, rather than formatting the |
| 2388 | // name based on the "canonical" representation used to store the |
| 2389 | // template arguments in the specialization. |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 2390 | TypeSourceInfo *WrittenTy |
| 2391 | = SemaRef.Context.getTemplateSpecializationTypeInfo( |
| 2392 | TemplateName(ClassTemplate), |
| 2393 | PartialSpec->getLocation(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2394 | InstTemplateArgs, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2395 | CanonType); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2396 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2397 | if (PrevDecl) { |
| 2398 | // We've already seen a partial specialization with the same template |
| 2399 | // parameters and template arguments. This can happen, for example, when |
| 2400 | // substituting the outer template arguments ends up causing two |
| 2401 | // class template partial specializations of a member class template |
| 2402 | // to have identical forms, e.g., |
| 2403 | // |
| 2404 | // template<typename T, typename U> |
| 2405 | // struct Outer { |
| 2406 | // template<typename X, typename Y> struct Inner; |
| 2407 | // template<typename Y> struct Inner<T, Y>; |
| 2408 | // template<typename Y> struct Inner<U, Y>; |
| 2409 | // }; |
| 2410 | // |
| 2411 | // Outer<int, int> outer; // error: the partial specializations of Inner |
| 2412 | // // have the same signature. |
| 2413 | SemaRef.Diag(PartialSpec->getLocation(), diag::err_partial_spec_redeclared) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2414 | << WrittenTy->getType(); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2415 | SemaRef.Diag(PrevDecl->getLocation(), diag::note_prev_partial_spec_here) |
| 2416 | << SemaRef.Context.getTypeDeclType(PrevDecl); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2417 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2418 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2419 | |
| 2420 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2421 | // Create the class template partial specialization declaration. |
| 2422 | ClassTemplatePartialSpecializationDecl *InstPartialSpec |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2423 | = ClassTemplatePartialSpecializationDecl::Create(SemaRef.Context, |
Douglas Gregor | 13c8577 | 2010-05-06 00:28:52 +0000 | [diff] [blame] | 2424 | PartialSpec->getTagKind(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2425 | Owner, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 2426 | PartialSpec->getLocStart(), |
| 2427 | PartialSpec->getLocation(), |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2428 | InstParams, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2429 | ClassTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2430 | Converted.data(), |
| 2431 | Converted.size(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2432 | InstTemplateArgs, |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 2433 | CanonType, |
Douglas Gregor | dc60c1e | 2010-04-30 05:56:50 +0000 | [diff] [blame] | 2434 | 0, |
Argyrios Kyrtzidis | cc0b1bc | 2010-07-20 13:59:28 +0000 | [diff] [blame] | 2435 | ClassTemplate->getNextPartialSpecSequenceNumber()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 2436 | // Substitute the nested name specifier, if any. |
| 2437 | if (SubstQualifier(PartialSpec, InstPartialSpec)) |
| 2438 | return 0; |
| 2439 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2440 | InstPartialSpec->setInstantiatedFromMember(PartialSpec); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 2441 | InstPartialSpec->setTypeAsWritten(WrittenTy); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2442 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2443 | // Add this partial specialization to the set of class template partial |
| 2444 | // specializations. |
Douglas Gregor | 1e1e972 | 2012-03-28 14:34:23 +0000 | [diff] [blame] | 2445 | ClassTemplate->AddPartialSpecialization(InstPartialSpec, /*InsertPos=*/0); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2446 | return InstPartialSpec; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2447 | } |
| 2448 | |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2449 | TypeSourceInfo* |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2450 | TemplateDeclInstantiator::SubstFunctionType(FunctionDecl *D, |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2451 | SmallVectorImpl<ParmVarDecl *> &Params) { |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2452 | TypeSourceInfo *OldTInfo = D->getTypeSourceInfo(); |
| 2453 | assert(OldTInfo && "substituting function without type source info"); |
| 2454 | assert(Params.empty() && "parameter vector is non-empty at start"); |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 2455 | |
| 2456 | CXXRecordDecl *ThisContext = 0; |
| 2457 | unsigned ThisTypeQuals = 0; |
| 2458 | if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) { |
Richard Smith | cafeb94 | 2013-06-07 02:33:37 +0000 | [diff] [blame] | 2459 | ThisContext = cast<CXXRecordDecl>(Owner); |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 2460 | ThisTypeQuals = Method->getTypeQualifiers(); |
| 2461 | } |
| 2462 | |
John McCall | 6cd3b9f | 2010-04-09 17:38:44 +0000 | [diff] [blame] | 2463 | TypeSourceInfo *NewTInfo |
| 2464 | = SemaRef.SubstFunctionDeclType(OldTInfo, TemplateArgs, |
| 2465 | D->getTypeSpecStartLoc(), |
Douglas Gregor | cefc3af | 2012-04-16 07:05:22 +0000 | [diff] [blame] | 2466 | D->getDeclName(), |
| 2467 | ThisContext, ThisTypeQuals); |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2468 | if (!NewTInfo) |
| 2469 | return 0; |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2470 | |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2471 | if (NewTInfo != OldTInfo) { |
| 2472 | // Get parameters from the new type info. |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2473 | TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2474 | if (FunctionProtoTypeLoc OldProtoLoc = |
| 2475 | OldTL.getAs<FunctionProtoTypeLoc>()) { |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2476 | TypeLoc NewTL = NewTInfo->getTypeLoc().IgnoreParens(); |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2477 | FunctionProtoTypeLoc NewProtoLoc = NewTL.castAs<FunctionProtoTypeLoc>(); |
Richard Smith | 500d729 | 2012-07-18 01:29:05 +0000 | [diff] [blame] | 2478 | unsigned NewIdx = 0; |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2479 | for (unsigned OldIdx = 0, NumOldParams = OldProtoLoc.getNumArgs(); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2480 | OldIdx != NumOldParams; ++OldIdx) { |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2481 | ParmVarDecl *OldParam = OldProtoLoc.getArg(OldIdx); |
Richard Smith | 500d729 | 2012-07-18 01:29:05 +0000 | [diff] [blame] | 2482 | LocalInstantiationScope *Scope = SemaRef.CurrentInstantiationScope; |
| 2483 | |
David Blaikie | dc84cd5 | 2013-02-20 22:23:23 +0000 | [diff] [blame] | 2484 | Optional<unsigned> NumArgumentsInExpansion; |
Richard Smith | 500d729 | 2012-07-18 01:29:05 +0000 | [diff] [blame] | 2485 | if (OldParam->isParameterPack()) |
| 2486 | NumArgumentsInExpansion = |
| 2487 | SemaRef.getNumArgumentsInExpansion(OldParam->getType(), |
| 2488 | TemplateArgs); |
| 2489 | if (!NumArgumentsInExpansion) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2490 | // Simple case: normal parameter, or a parameter pack that's |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2491 | // instantiated to a (still-dependent) parameter pack. |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2492 | ParmVarDecl *NewParam = NewProtoLoc.getArg(NewIdx++); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2493 | Params.push_back(NewParam); |
Richard Smith | 500d729 | 2012-07-18 01:29:05 +0000 | [diff] [blame] | 2494 | Scope->InstantiatedLocal(OldParam, NewParam); |
| 2495 | } else { |
| 2496 | // Parameter pack expansion: make the instantiation an argument pack. |
| 2497 | Scope->MakeInstantiatedLocalArgPack(OldParam); |
| 2498 | for (unsigned I = 0; I != *NumArgumentsInExpansion; ++I) { |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2499 | ParmVarDecl *NewParam = NewProtoLoc.getArg(NewIdx++); |
Richard Smith | 500d729 | 2012-07-18 01:29:05 +0000 | [diff] [blame] | 2500 | Params.push_back(NewParam); |
| 2501 | Scope->InstantiatedLocalPackArg(OldParam, NewParam); |
| 2502 | } |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2503 | } |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2504 | } |
Douglas Gregor | 895162d | 2010-04-30 18:55:50 +0000 | [diff] [blame] | 2505 | } |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2506 | } else { |
| 2507 | // The function type itself was not dependent and therefore no |
| 2508 | // substitution occurred. However, we still need to instantiate |
| 2509 | // the function parameters themselves. |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2510 | TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); |
David Blaikie | 39e6ab4 | 2013-02-18 22:06:02 +0000 | [diff] [blame] | 2511 | if (FunctionProtoTypeLoc OldProtoLoc = |
| 2512 | OldTL.getAs<FunctionProtoTypeLoc>()) { |
| 2513 | for (unsigned i = 0, i_end = OldProtoLoc.getNumArgs(); i != i_end; ++i) { |
| 2514 | ParmVarDecl *Parm = VisitParmVarDecl(OldProtoLoc.getArg(i)); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2515 | if (!Parm) |
| 2516 | return 0; |
| 2517 | Params.push_back(Parm); |
| 2518 | } |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2519 | } |
| 2520 | } |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2521 | return NewTInfo; |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2522 | } |
| 2523 | |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2524 | /// Introduce the instantiated function parameters into the local |
| 2525 | /// instantiation scope, and set the parameter names to those used |
| 2526 | /// in the template. |
| 2527 | static void addInstantiatedParametersToScope(Sema &S, FunctionDecl *Function, |
| 2528 | const FunctionDecl *PatternDecl, |
| 2529 | LocalInstantiationScope &Scope, |
| 2530 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
| 2531 | unsigned FParamIdx = 0; |
| 2532 | for (unsigned I = 0, N = PatternDecl->getNumParams(); I != N; ++I) { |
| 2533 | const ParmVarDecl *PatternParam = PatternDecl->getParamDecl(I); |
| 2534 | if (!PatternParam->isParameterPack()) { |
| 2535 | // Simple case: not a parameter pack. |
| 2536 | assert(FParamIdx < Function->getNumParams()); |
| 2537 | ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx); |
| 2538 | FunctionParam->setDeclName(PatternParam->getDeclName()); |
| 2539 | Scope.InstantiatedLocal(PatternParam, FunctionParam); |
| 2540 | ++FParamIdx; |
| 2541 | continue; |
| 2542 | } |
| 2543 | |
| 2544 | // Expand the parameter pack. |
| 2545 | Scope.MakeInstantiatedLocalArgPack(PatternParam); |
David Blaikie | dc84cd5 | 2013-02-20 22:23:23 +0000 | [diff] [blame] | 2546 | Optional<unsigned> NumArgumentsInExpansion |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2547 | = S.getNumArgumentsInExpansion(PatternParam->getType(), TemplateArgs); |
Richard Smith | 500d729 | 2012-07-18 01:29:05 +0000 | [diff] [blame] | 2548 | assert(NumArgumentsInExpansion && |
| 2549 | "should only be called when all template arguments are known"); |
| 2550 | for (unsigned Arg = 0; Arg < *NumArgumentsInExpansion; ++Arg) { |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2551 | ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx); |
| 2552 | FunctionParam->setDeclName(PatternParam->getDeclName()); |
| 2553 | Scope.InstantiatedLocalPackArg(PatternParam, FunctionParam); |
| 2554 | ++FParamIdx; |
| 2555 | } |
| 2556 | } |
| 2557 | } |
| 2558 | |
| 2559 | static void InstantiateExceptionSpec(Sema &SemaRef, FunctionDecl *New, |
| 2560 | const FunctionProtoType *Proto, |
| 2561 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2562 | assert(Proto->getExceptionSpecType() != EST_Uninstantiated); |
| 2563 | |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2564 | // C++11 [expr.prim.general]p3: |
| 2565 | // If a declaration declares a member function or member function |
| 2566 | // template of a class X, the expression this is a prvalue of type |
| 2567 | // "pointer to cv-qualifier-seq X" between the optional cv-qualifer-seq |
| 2568 | // and the end of the function-definition, member-declarator, or |
| 2569 | // declarator. |
| 2570 | CXXRecordDecl *ThisContext = 0; |
| 2571 | unsigned ThisTypeQuals = 0; |
| 2572 | if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(New)) { |
| 2573 | ThisContext = Method->getParent(); |
| 2574 | ThisTypeQuals = Method->getTypeQualifiers(); |
| 2575 | } |
| 2576 | Sema::CXXThisScopeRAII ThisScope(SemaRef, ThisContext, ThisTypeQuals, |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 2577 | SemaRef.getLangOpts().CPlusPlus11); |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2578 | |
| 2579 | // The function has an exception specification or a "noreturn" |
| 2580 | // attribute. Substitute into each of the exception types. |
| 2581 | SmallVector<QualType, 4> Exceptions; |
| 2582 | for (unsigned I = 0, N = Proto->getNumExceptions(); I != N; ++I) { |
| 2583 | // FIXME: Poor location information! |
| 2584 | if (const PackExpansionType *PackExpansion |
| 2585 | = Proto->getExceptionType(I)->getAs<PackExpansionType>()) { |
| 2586 | // We have a pack expansion. Instantiate it. |
| 2587 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
| 2588 | SemaRef.collectUnexpandedParameterPacks(PackExpansion->getPattern(), |
| 2589 | Unexpanded); |
| 2590 | assert(!Unexpanded.empty() && |
| 2591 | "Pack expansion without parameter packs?"); |
| 2592 | |
| 2593 | bool Expand = false; |
| 2594 | bool RetainExpansion = false; |
Richard Smith | cafeb94 | 2013-06-07 02:33:37 +0000 | [diff] [blame] | 2595 | Optional<unsigned> NumExpansions = PackExpansion->getNumExpansions(); |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2596 | if (SemaRef.CheckParameterPacksForExpansion(New->getLocation(), |
| 2597 | SourceRange(), |
| 2598 | Unexpanded, |
| 2599 | TemplateArgs, |
| 2600 | Expand, |
| 2601 | RetainExpansion, |
| 2602 | NumExpansions)) |
| 2603 | break; |
| 2604 | |
| 2605 | if (!Expand) { |
| 2606 | // We can't expand this pack expansion into separate arguments yet; |
| 2607 | // just substitute into the pattern and create a new pack expansion |
| 2608 | // type. |
| 2609 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
| 2610 | QualType T = SemaRef.SubstType(PackExpansion->getPattern(), |
| 2611 | TemplateArgs, |
| 2612 | New->getLocation(), New->getDeclName()); |
| 2613 | if (T.isNull()) |
| 2614 | break; |
| 2615 | |
| 2616 | T = SemaRef.Context.getPackExpansionType(T, NumExpansions); |
| 2617 | Exceptions.push_back(T); |
| 2618 | continue; |
| 2619 | } |
| 2620 | |
| 2621 | // Substitute into the pack expansion pattern for each template |
| 2622 | bool Invalid = false; |
| 2623 | for (unsigned ArgIdx = 0; ArgIdx != *NumExpansions; ++ArgIdx) { |
| 2624 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, ArgIdx); |
| 2625 | |
| 2626 | QualType T = SemaRef.SubstType(PackExpansion->getPattern(), |
| 2627 | TemplateArgs, |
| 2628 | New->getLocation(), New->getDeclName()); |
| 2629 | if (T.isNull()) { |
| 2630 | Invalid = true; |
| 2631 | break; |
| 2632 | } |
| 2633 | |
| 2634 | Exceptions.push_back(T); |
| 2635 | } |
| 2636 | |
| 2637 | if (Invalid) |
| 2638 | break; |
| 2639 | |
| 2640 | continue; |
| 2641 | } |
| 2642 | |
| 2643 | QualType T |
| 2644 | = SemaRef.SubstType(Proto->getExceptionType(I), TemplateArgs, |
| 2645 | New->getLocation(), New->getDeclName()); |
| 2646 | if (T.isNull() || |
| 2647 | SemaRef.CheckSpecifiedExceptionType(T, New->getLocation())) |
| 2648 | continue; |
| 2649 | |
| 2650 | Exceptions.push_back(T); |
| 2651 | } |
| 2652 | Expr *NoexceptExpr = 0; |
| 2653 | if (Expr *OldNoexceptExpr = Proto->getNoexceptExpr()) { |
| 2654 | EnterExpressionEvaluationContext Unevaluated(SemaRef, |
| 2655 | Sema::ConstantEvaluated); |
| 2656 | ExprResult E = SemaRef.SubstExpr(OldNoexceptExpr, TemplateArgs); |
| 2657 | if (E.isUsable()) |
| 2658 | E = SemaRef.CheckBooleanCondition(E.get(), E.get()->getLocStart()); |
| 2659 | |
| 2660 | if (E.isUsable()) { |
| 2661 | NoexceptExpr = E.take(); |
| 2662 | if (!NoexceptExpr->isTypeDependent() && |
| 2663 | !NoexceptExpr->isValueDependent()) |
Douglas Gregor | ab41fe9 | 2012-05-04 22:38:52 +0000 | [diff] [blame] | 2664 | NoexceptExpr |
| 2665 | = SemaRef.VerifyIntegerConstantExpression(NoexceptExpr, |
| 2666 | 0, diag::err_noexcept_needs_constant_expression, |
| 2667 | /*AllowFold*/ false).take(); |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2668 | } |
| 2669 | } |
| 2670 | |
| 2671 | // Rebuild the function type |
| 2672 | const FunctionProtoType *NewProto |
| 2673 | = New->getType()->getAs<FunctionProtoType>(); |
| 2674 | assert(NewProto && "Template instantiation without function prototype?"); |
| 2675 | |
| 2676 | FunctionProtoType::ExtProtoInfo EPI = NewProto->getExtProtoInfo(); |
| 2677 | EPI.ExceptionSpecType = Proto->getExceptionSpecType(); |
| 2678 | EPI.NumExceptions = Exceptions.size(); |
| 2679 | EPI.Exceptions = Exceptions.data(); |
| 2680 | EPI.NoexceptExpr = NoexceptExpr; |
| 2681 | |
| 2682 | New->setType(SemaRef.Context.getFunctionType(NewProto->getResultType(), |
Jordan Rose | bea522f | 2013-03-08 21:51:21 +0000 | [diff] [blame] | 2683 | ArrayRef<QualType>(NewProto->arg_type_begin(), |
| 2684 | NewProto->getNumArgs()), |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2685 | EPI)); |
| 2686 | } |
| 2687 | |
| 2688 | void Sema::InstantiateExceptionSpec(SourceLocation PointOfInstantiation, |
| 2689 | FunctionDecl *Decl) { |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2690 | const FunctionProtoType *Proto = Decl->getType()->castAs<FunctionProtoType>(); |
| 2691 | if (Proto->getExceptionSpecType() != EST_Uninstantiated) |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2692 | return; |
| 2693 | |
| 2694 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Decl, |
| 2695 | InstantiatingTemplate::ExceptionSpecification()); |
Richard Smith | b9d0b76 | 2012-07-27 04:22:15 +0000 | [diff] [blame] | 2696 | if (Inst) { |
| 2697 | // We hit the instantiation depth limit. Clear the exception specification |
| 2698 | // so that our callers don't have to cope with EST_Uninstantiated. |
| 2699 | FunctionProtoType::ExtProtoInfo EPI = Proto->getExtProtoInfo(); |
| 2700 | EPI.ExceptionSpecType = EST_None; |
| 2701 | Decl->setType(Context.getFunctionType(Proto->getResultType(), |
Jordan Rose | bea522f | 2013-03-08 21:51:21 +0000 | [diff] [blame] | 2702 | ArrayRef<QualType>(Proto->arg_type_begin(), |
| 2703 | Proto->getNumArgs()), |
Richard Smith | b9d0b76 | 2012-07-27 04:22:15 +0000 | [diff] [blame] | 2704 | EPI)); |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2705 | return; |
Richard Smith | b9d0b76 | 2012-07-27 04:22:15 +0000 | [diff] [blame] | 2706 | } |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2707 | |
| 2708 | // Enter the scope of this instantiation. We don't use |
| 2709 | // PushDeclContext because we don't have a scope. |
| 2710 | Sema::ContextRAII savedContext(*this, Decl); |
| 2711 | LocalInstantiationScope Scope(*this); |
| 2712 | |
| 2713 | MultiLevelTemplateArgumentList TemplateArgs = |
| 2714 | getTemplateInstantiationArgs(Decl, 0, /*RelativeToPrimary*/true); |
| 2715 | |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2716 | FunctionDecl *Template = Proto->getExceptionSpecTemplate(); |
| 2717 | addInstantiatedParametersToScope(*this, Decl, Template, Scope, TemplateArgs); |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2718 | |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2719 | ::InstantiateExceptionSpec(*this, Decl, |
| 2720 | Template->getType()->castAs<FunctionProtoType>(), |
| 2721 | TemplateArgs); |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2722 | } |
| 2723 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2724 | /// \brief Initializes the common fields of an instantiation function |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2725 | /// declaration (New) from the corresponding fields of its template (Tmpl). |
| 2726 | /// |
| 2727 | /// \returns true if there was an error |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2728 | bool |
| 2729 | TemplateDeclInstantiator::InitFunctionInstantiation(FunctionDecl *New, |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2730 | FunctionDecl *Tmpl) { |
David Blaikie | 85f485a | 2012-07-16 18:50:45 +0000 | [diff] [blame] | 2731 | if (Tmpl->isDeleted()) |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 2732 | New->setDeletedAsWritten(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2733 | |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2734 | // If we are performing substituting explicitly-specified template arguments |
| 2735 | // or deduced template arguments into a function template and we reach this |
| 2736 | // 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] | 2737 | // to keeping the new function template specialization. We therefore |
| 2738 | // convert the active template instantiation for the function template |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2739 | // into a template instantiation for this specific function template |
| 2740 | // specialization, which is not a SFINAE context, so that we diagnose any |
| 2741 | // further errors in the declaration itself. |
| 2742 | typedef Sema::ActiveTemplateInstantiation ActiveInstType; |
| 2743 | ActiveInstType &ActiveInst = SemaRef.ActiveTemplateInstantiations.back(); |
| 2744 | if (ActiveInst.Kind == ActiveInstType::ExplicitTemplateArgumentSubstitution || |
| 2745 | ActiveInst.Kind == ActiveInstType::DeducedTemplateArgumentSubstitution) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2746 | if (FunctionTemplateDecl *FunTmpl |
Nick Lewycky | 4a9e60f | 2012-11-16 08:40:59 +0000 | [diff] [blame] | 2747 | = dyn_cast<FunctionTemplateDecl>(ActiveInst.Entity)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2748 | assert(FunTmpl->getTemplatedDecl() == Tmpl && |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2749 | "Deduction from the wrong function template?"); |
Daniel Dunbar | bcbb8bd | 2009-07-16 22:10:11 +0000 | [diff] [blame] | 2750 | (void) FunTmpl; |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2751 | ActiveInst.Kind = ActiveInstType::TemplateInstantiation; |
Nick Lewycky | 4a9e60f | 2012-11-16 08:40:59 +0000 | [diff] [blame] | 2752 | ActiveInst.Entity = New; |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2753 | } |
| 2754 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2755 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2756 | const FunctionProtoType *Proto = Tmpl->getType()->getAs<FunctionProtoType>(); |
| 2757 | assert(Proto && "Function template without prototype?"); |
| 2758 | |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2759 | if (Proto->hasExceptionSpec() || Proto->getNoReturnAttr()) { |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2760 | FunctionProtoType::ExtProtoInfo EPI = Proto->getExtProtoInfo(); |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2761 | |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2762 | // DR1330: In C++11, defer instantiation of a non-trivial |
| 2763 | // exception specification. |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 2764 | if (SemaRef.getLangOpts().CPlusPlus11 && |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2765 | EPI.ExceptionSpecType != EST_None && |
| 2766 | EPI.ExceptionSpecType != EST_DynamicNone && |
| 2767 | EPI.ExceptionSpecType != EST_BasicNoexcept) { |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2768 | FunctionDecl *ExceptionSpecTemplate = Tmpl; |
| 2769 | if (EPI.ExceptionSpecType == EST_Uninstantiated) |
| 2770 | ExceptionSpecTemplate = EPI.ExceptionSpecTemplate; |
Richard Smith | 4841ca5 | 2013-04-10 05:48:59 +0000 | [diff] [blame] | 2771 | ExceptionSpecificationType NewEST = EST_Uninstantiated; |
| 2772 | if (EPI.ExceptionSpecType == EST_Unevaluated) |
| 2773 | NewEST = EST_Unevaluated; |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2774 | |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2775 | // Mark the function has having an uninstantiated exception specification. |
| 2776 | const FunctionProtoType *NewProto |
| 2777 | = New->getType()->getAs<FunctionProtoType>(); |
| 2778 | assert(NewProto && "Template instantiation without function prototype?"); |
| 2779 | EPI = NewProto->getExtProtoInfo(); |
Richard Smith | 4841ca5 | 2013-04-10 05:48:59 +0000 | [diff] [blame] | 2780 | EPI.ExceptionSpecType = NewEST; |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2781 | EPI.ExceptionSpecDecl = New; |
Richard Smith | 13bffc5 | 2012-04-19 00:08:28 +0000 | [diff] [blame] | 2782 | EPI.ExceptionSpecTemplate = ExceptionSpecTemplate; |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2783 | New->setType(SemaRef.Context.getFunctionType(NewProto->getResultType(), |
Jordan Rose | bea522f | 2013-03-08 21:51:21 +0000 | [diff] [blame] | 2784 | ArrayRef<QualType>(NewProto->arg_type_begin(), |
| 2785 | NewProto->getNumArgs()), |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2786 | EPI)); |
| 2787 | } else { |
| 2788 | ::InstantiateExceptionSpec(SemaRef, New, Proto, TemplateArgs); |
| 2789 | } |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2790 | } |
| 2791 | |
Rafael Espindola | 19f74ac | 2011-07-06 15:46:09 +0000 | [diff] [blame] | 2792 | // Get the definition. Leaves the variable unchanged if undefined. |
Richard Smith | e6975e9 | 2012-04-17 00:58:00 +0000 | [diff] [blame] | 2793 | const FunctionDecl *Definition = Tmpl; |
Rafael Espindola | 19f74ac | 2011-07-06 15:46:09 +0000 | [diff] [blame] | 2794 | Tmpl->isDefined(Definition); |
| 2795 | |
DeLesley Hutchins | 23323e0 | 2012-01-20 22:50:54 +0000 | [diff] [blame] | 2796 | SemaRef.InstantiateAttrs(TemplateArgs, Definition, New, |
| 2797 | LateAttrs, StartingScope); |
Douglas Gregor | 7cf84d6 | 2010-06-15 17:05:35 +0000 | [diff] [blame] | 2798 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2799 | return false; |
| 2800 | } |
| 2801 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2802 | /// \brief Initializes common fields of an instantiated method |
| 2803 | /// declaration (New) from the corresponding fields of its template |
| 2804 | /// (Tmpl). |
| 2805 | /// |
| 2806 | /// \returns true if there was an error |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2807 | bool |
| 2808 | TemplateDeclInstantiator::InitMethodInstantiation(CXXMethodDecl *New, |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2809 | CXXMethodDecl *Tmpl) { |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2810 | if (InitFunctionInstantiation(New, Tmpl)) |
| 2811 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2812 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2813 | New->setAccess(Tmpl->getAccess()); |
Fariborz Jahanian | e7184df | 2009-12-03 18:44:40 +0000 | [diff] [blame] | 2814 | if (Tmpl->isVirtualAsWritten()) |
Douglas Gregor | 85606eb | 2010-09-28 20:50:54 +0000 | [diff] [blame] | 2815 | New->setVirtualAsWritten(true); |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2816 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2817 | // FIXME: New needs a pointer to Tmpl |
| 2818 | return false; |
| 2819 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2820 | |
| 2821 | /// \brief Instantiate the definition of the given function from its |
| 2822 | /// template. |
| 2823 | /// |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2824 | /// \param PointOfInstantiation the point at which the instantiation was |
| 2825 | /// required. Note that this is not precisely a "point of instantiation" |
| 2826 | /// for the function, but it's close. |
| 2827 | /// |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2828 | /// \param Function the already-instantiated declaration of a |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2829 | /// function template specialization or member function of a class template |
| 2830 | /// specialization. |
| 2831 | /// |
| 2832 | /// \param Recursive if true, recursively instantiates any functions that |
| 2833 | /// are required by this instantiation. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2834 | /// |
| 2835 | /// \param DefinitionRequired if true, then we are performing an explicit |
| 2836 | /// instantiation where the body of the function is required. Complain if |
| 2837 | /// there is no such body. |
Douglas Gregor | f3e7ce4 | 2009-05-18 17:01:57 +0000 | [diff] [blame] | 2838 | void Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation, |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2839 | FunctionDecl *Function, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2840 | bool Recursive, |
| 2841 | bool DefinitionRequired) { |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 2842 | if (Function->isInvalidDecl() || Function->isDefined()) |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2843 | return; |
| 2844 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 2845 | // Never instantiate an explicit specialization except if it is a class scope |
| 2846 | // explicit specialization. |
| 2847 | if (Function->getTemplateSpecializationKind() == TSK_ExplicitSpecialization && |
| 2848 | !Function->getClassScopeSpecializationPattern()) |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2849 | return; |
Douglas Gregor | 6cfacfe | 2010-05-17 17:34:56 +0000 | [diff] [blame] | 2850 | |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2851 | // Find the function body that we'll be substituting. |
Douglas Gregor | 3b846b6 | 2009-10-27 20:53:28 +0000 | [diff] [blame] | 2852 | const FunctionDecl *PatternDecl = Function->getTemplateInstantiationPattern(); |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2853 | assert(PatternDecl && "instantiating a non-template"); |
| 2854 | |
| 2855 | Stmt *Pattern = PatternDecl->getBody(PatternDecl); |
| 2856 | assert(PatternDecl && "template definition is not a template"); |
| 2857 | if (!Pattern) { |
| 2858 | // Try to find a defaulted definition |
| 2859 | PatternDecl->isDefined(PatternDecl); |
Sean Hunt | dfab854 | 2011-05-25 22:02:25 +0000 | [diff] [blame] | 2860 | } |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2861 | assert(PatternDecl && "template definition is not a template"); |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2862 | |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2863 | // Postpone late parsed template instantiations. |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2864 | if (PatternDecl->isLateTemplateParsed() && |
Nick Lewycky | 8a29bc0 | 2011-05-12 03:51:24 +0000 | [diff] [blame] | 2865 | !LateTemplateParser) { |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2866 | PendingInstantiations.push_back( |
| 2867 | std::make_pair(Function, PointOfInstantiation)); |
| 2868 | return; |
| 2869 | } |
| 2870 | |
| 2871 | // Call the LateTemplateParser callback if there a need to late parse |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2872 | // a templated function definition. |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2873 | if (!Pattern && PatternDecl->isLateTemplateParsed() && |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2874 | LateTemplateParser) { |
Francois Pichet | 4a47e8d | 2011-04-23 11:52:20 +0000 | [diff] [blame] | 2875 | LateTemplateParser(OpaqueParser, PatternDecl); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2876 | Pattern = PatternDecl->getBody(PatternDecl); |
| 2877 | } |
| 2878 | |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2879 | if (!Pattern && !PatternDecl->isDefaulted()) { |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2880 | if (DefinitionRequired) { |
| 2881 | if (Function->getPrimaryTemplate()) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2882 | Diag(PointOfInstantiation, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2883 | diag::err_explicit_instantiation_undefined_func_template) |
| 2884 | << Function->getPrimaryTemplate(); |
| 2885 | else |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2886 | Diag(PointOfInstantiation, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2887 | diag::err_explicit_instantiation_undefined_member) |
| 2888 | << 1 << Function->getDeclName() << Function->getDeclContext(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2889 | |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2890 | if (PatternDecl) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2891 | Diag(PatternDecl->getLocation(), |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2892 | diag::note_explicit_instantiation_here); |
Douglas Gregor | cfe833b | 2010-05-17 17:57:54 +0000 | [diff] [blame] | 2893 | Function->setInvalidDecl(); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2894 | } else if (Function->getTemplateSpecializationKind() |
| 2895 | == TSK_ExplicitInstantiationDefinition) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2896 | PendingInstantiations.push_back( |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2897 | std::make_pair(Function, PointOfInstantiation)); |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2898 | } |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2899 | |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2900 | return; |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2901 | } |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2902 | |
Richard Smith | 60e141e | 2013-05-04 07:00:32 +0000 | [diff] [blame] | 2903 | // C++1y [temp.explicit]p10: |
| 2904 | // Except for inline functions, declarations with types deduced from their |
| 2905 | // initializer or return value, and class template specializations, other |
| 2906 | // explicit instantiation declarations have the effect of suppressing the |
| 2907 | // implicit instantiation of the entity to which they refer. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2908 | if (Function->getTemplateSpecializationKind() |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2909 | == TSK_ExplicitInstantiationDeclaration && |
Richard Smith | 60e141e | 2013-05-04 07:00:32 +0000 | [diff] [blame] | 2910 | !PatternDecl->isInlined() && |
| 2911 | !PatternDecl->getResultType()->isUndeducedType()) |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2912 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2913 | |
Richard Smith | d4497dd | 2013-01-25 00:08:28 +0000 | [diff] [blame] | 2914 | if (PatternDecl->isInlined()) |
| 2915 | Function->setImplicitlyInline(); |
| 2916 | |
Douglas Gregor | f3e7ce4 | 2009-05-18 17:01:57 +0000 | [diff] [blame] | 2917 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Function); |
| 2918 | if (Inst) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2919 | return; |
| 2920 | |
Abramo Bagnara | e994624 | 2011-11-18 08:08:52 +0000 | [diff] [blame] | 2921 | // Copy the inner loc start from the pattern. |
| 2922 | Function->setInnerLocStart(PatternDecl->getInnerLocStart()); |
| 2923 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2924 | // If we're performing recursive template instantiation, create our own |
| 2925 | // queue of pending implicit instantiations that we will instantiate later, |
| 2926 | // while we're still within our own instantiation context. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2927 | SmallVector<VTableUse, 16> SavedVTableUses; |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2928 | std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2929 | if (Recursive) { |
| 2930 | VTableUses.swap(SavedVTableUses); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2931 | PendingInstantiations.swap(SavedPendingInstantiations); |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2932 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2933 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2934 | EnterExpressionEvaluationContext EvalContext(*this, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2935 | Sema::PotentiallyEvaluated); |
Douglas Gregor | e2c31ff | 2009-05-15 17:59:04 +0000 | [diff] [blame] | 2936 | |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2937 | // Introduce a new scope where local variable instantiations will be |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2938 | // recorded, unless we're actually a member function within a local |
| 2939 | // class, in which case we need to merge our results with the parent |
| 2940 | // scope (of the enclosing function). |
| 2941 | bool MergeWithParentScope = false; |
| 2942 | if (CXXRecordDecl *Rec = dyn_cast<CXXRecordDecl>(Function->getDeclContext())) |
| 2943 | MergeWithParentScope = Rec->isLocalClass(); |
| 2944 | |
| 2945 | LocalInstantiationScope Scope(*this, MergeWithParentScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2946 | |
Richard Smith | 1d28caf | 2012-12-11 01:14:52 +0000 | [diff] [blame] | 2947 | if (PatternDecl->isDefaulted()) |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2948 | SetDeclDefaulted(Function, PatternDecl->getLocation()); |
Richard Smith | 1d28caf | 2012-12-11 01:14:52 +0000 | [diff] [blame] | 2949 | else { |
| 2950 | ActOnStartOfFunctionDef(0, Function); |
| 2951 | |
| 2952 | // Enter the scope of this instantiation. We don't use |
| 2953 | // PushDeclContext because we don't have a scope. |
| 2954 | Sema::ContextRAII savedContext(*this, Function); |
| 2955 | |
| 2956 | MultiLevelTemplateArgumentList TemplateArgs = |
| 2957 | getTemplateInstantiationArgs(Function, 0, false, PatternDecl); |
| 2958 | |
| 2959 | addInstantiatedParametersToScope(*this, Function, PatternDecl, Scope, |
| 2960 | TemplateArgs); |
| 2961 | |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2962 | // If this is a constructor, instantiate the member initializers. |
| 2963 | if (const CXXConstructorDecl *Ctor = |
| 2964 | dyn_cast<CXXConstructorDecl>(PatternDecl)) { |
| 2965 | InstantiateMemInitializers(cast<CXXConstructorDecl>(Function), Ctor, |
| 2966 | TemplateArgs); |
| 2967 | } |
| 2968 | |
| 2969 | // Instantiate the function body. |
| 2970 | StmtResult Body = SubstStmt(Pattern, TemplateArgs); |
| 2971 | |
| 2972 | if (Body.isInvalid()) |
| 2973 | Function->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2974 | |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2975 | ActOnFinishFunctionBody(Function, Body.get(), |
| 2976 | /*IsInstantiation=*/true); |
Richard Smith | 1d28caf | 2012-12-11 01:14:52 +0000 | [diff] [blame] | 2977 | |
| 2978 | PerformDependentDiagnostics(PatternDecl, TemplateArgs); |
| 2979 | |
| 2980 | savedContext.pop(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2981 | } |
| 2982 | |
Douglas Gregor | aba43bb | 2009-05-26 20:50:29 +0000 | [diff] [blame] | 2983 | DeclGroupRef DG(Function); |
| 2984 | Consumer.HandleTopLevelDecl(DG); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2985 | |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2986 | // This class may have local implicit instantiations that need to be |
| 2987 | // instantiation within this scope. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2988 | PerformPendingInstantiations(/*LocalOnly=*/true); |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2989 | Scope.Exit(); |
| 2990 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2991 | if (Recursive) { |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2992 | // Define any pending vtables. |
| 2993 | DefineUsedVTables(); |
| 2994 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2995 | // Instantiate any pending implicit instantiations found during the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2996 | // instantiation of this template. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2997 | PerformPendingInstantiations(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2998 | |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2999 | // Restore the set of pending vtables. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3000 | assert(VTableUses.empty() && |
| 3001 | "VTableUses should be empty before it is discarded."); |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 3002 | VTableUses.swap(SavedVTableUses); |
| 3003 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 3004 | // Restore the set of pending implicit instantiations. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3005 | assert(PendingInstantiations.empty() && |
| 3006 | "PendingInstantiations should be empty before it is discarded."); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3007 | PendingInstantiations.swap(SavedPendingInstantiations); |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 3008 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 3009 | } |
| 3010 | |
| 3011 | /// \brief Instantiate the definition of the given variable from its |
| 3012 | /// template. |
| 3013 | /// |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3014 | /// \param PointOfInstantiation the point at which the instantiation was |
| 3015 | /// required. Note that this is not precisely a "point of instantiation" |
| 3016 | /// for the function, but it's close. |
| 3017 | /// |
| 3018 | /// \param Var the already-instantiated declaration of a static member |
| 3019 | /// variable of a class template specialization. |
| 3020 | /// |
| 3021 | /// \param Recursive if true, recursively instantiates any functions that |
| 3022 | /// are required by this instantiation. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 3023 | /// |
| 3024 | /// \param DefinitionRequired if true, then we are performing an explicit |
| 3025 | /// instantiation where an out-of-line definition of the member variable |
| 3026 | /// is required. Complain if there is no such definition. |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3027 | void Sema::InstantiateStaticDataMemberDefinition( |
| 3028 | SourceLocation PointOfInstantiation, |
| 3029 | VarDecl *Var, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 3030 | bool Recursive, |
| 3031 | bool DefinitionRequired) { |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3032 | if (Var->isInvalidDecl()) |
| 3033 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3034 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3035 | // Find the out-of-line definition of this static data member. |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3036 | VarDecl *Def = Var->getInstantiatedFromStaticDataMember(); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3037 | assert(Def && "This data member was not instantiated from a template?"); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3038 | assert(Def->isStaticDataMember() && "Not a static data member?"); |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 3039 | Def = Def->getOutOfLineDefinition(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3040 | |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 3041 | if (!Def) { |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3042 | // We did not find an out-of-line definition of this static data member, |
| 3043 | // 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] | 3044 | // instantiate this definition (or provide a specialization for it) in |
| 3045 | // another translation unit. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 3046 | if (DefinitionRequired) { |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 3047 | Def = Var->getInstantiatedFromStaticDataMember(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3048 | Diag(PointOfInstantiation, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 3049 | diag::err_explicit_instantiation_undefined_member) |
| 3050 | << 2 << Var->getDeclName() << Var->getDeclContext(); |
| 3051 | Diag(Def->getLocation(), diag::note_explicit_instantiation_here); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3052 | } else if (Var->getTemplateSpecializationKind() |
| 3053 | == TSK_ExplicitInstantiationDefinition) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3054 | PendingInstantiations.push_back( |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3055 | std::make_pair(Var, PointOfInstantiation)); |
| 3056 | } |
| 3057 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3058 | return; |
| 3059 | } |
| 3060 | |
Rafael Espindola | 234fe65 | 2012-03-05 10:54:55 +0000 | [diff] [blame] | 3061 | TemplateSpecializationKind TSK = Var->getTemplateSpecializationKind(); |
| 3062 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 3063 | // Never instantiate an explicit specialization. |
Rafael Espindola | 234fe65 | 2012-03-05 10:54:55 +0000 | [diff] [blame] | 3064 | if (TSK == TSK_ExplicitSpecialization) |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 3065 | return; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3066 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 3067 | // C++0x [temp.explicit]p9: |
| 3068 | // Except for inline functions, other explicit instantiation declarations |
| 3069 | // have the effect of suppressing the implicit instantiation of the entity |
| 3070 | // to which they refer. |
Rafael Espindola | 234fe65 | 2012-03-05 10:54:55 +0000 | [diff] [blame] | 3071 | if (TSK == TSK_ExplicitInstantiationDeclaration) |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 3072 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3073 | |
Argyrios Kyrtzidis | afda905 | 2013-02-24 00:05:01 +0000 | [diff] [blame] | 3074 | // Make sure to pass the instantiated variable to the consumer at the end. |
| 3075 | struct PassToConsumerRAII { |
| 3076 | ASTConsumer &Consumer; |
| 3077 | VarDecl *Var; |
| 3078 | |
| 3079 | PassToConsumerRAII(ASTConsumer &Consumer, VarDecl *Var) |
| 3080 | : Consumer(Consumer), Var(Var) { } |
| 3081 | |
| 3082 | ~PassToConsumerRAII() { |
| 3083 | Consumer.HandleCXXStaticMemberVarInstantiation(Var); |
| 3084 | } |
| 3085 | } PassToConsumerRAII(Consumer, Var); |
Rafael Espindola | 0250393 | 2012-03-08 15:51:03 +0000 | [diff] [blame] | 3086 | |
Douglas Gregor | f15748a | 2011-06-03 03:35:07 +0000 | [diff] [blame] | 3087 | // If we already have a definition, we're done. |
Nick Lewycky | 95e3872 | 2012-04-04 02:38:36 +0000 | [diff] [blame] | 3088 | if (VarDecl *Def = Var->getDefinition()) { |
| 3089 | // We may be explicitly instantiating something we've already implicitly |
| 3090 | // instantiated. |
| 3091 | Def->setTemplateSpecializationKind(Var->getTemplateSpecializationKind(), |
| 3092 | PointOfInstantiation); |
Douglas Gregor | f15748a | 2011-06-03 03:35:07 +0000 | [diff] [blame] | 3093 | return; |
Nick Lewycky | 95e3872 | 2012-04-04 02:38:36 +0000 | [diff] [blame] | 3094 | } |
Douglas Gregor | f15748a | 2011-06-03 03:35:07 +0000 | [diff] [blame] | 3095 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3096 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Var); |
| 3097 | if (Inst) |
| 3098 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3099 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3100 | // If we're performing recursive template instantiation, create our own |
| 3101 | // queue of pending implicit instantiations that we will instantiate later, |
| 3102 | // while we're still within our own instantiation context. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3103 | SmallVector<VTableUse, 16> SavedVTableUses; |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3104 | std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3105 | if (Recursive) { |
| 3106 | VTableUses.swap(SavedVTableUses); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3107 | PendingInstantiations.swap(SavedPendingInstantiations); |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3108 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3109 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3110 | // Enter the scope of this instantiation. We don't use |
| 3111 | // PushDeclContext because we don't have a scope. |
John McCall | f5ba7e0 | 2011-02-14 20:37:25 +0000 | [diff] [blame] | 3112 | ContextRAII previousContext(*this, Var->getDeclContext()); |
Douglas Gregor | 7bdc152 | 2012-02-16 21:36:18 +0000 | [diff] [blame] | 3113 | LocalInstantiationScope Local(*this); |
| 3114 | |
Douglas Gregor | 1028c9f | 2009-10-14 21:29:40 +0000 | [diff] [blame] | 3115 | VarDecl *OldVar = Var; |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 3116 | Var = cast_or_null<VarDecl>(SubstDecl(Def, Var->getDeclContext(), |
Nico Weber | 6bb4dcb | 2010-11-28 22:53:37 +0000 | [diff] [blame] | 3117 | getTemplateInstantiationArgs(Var))); |
John McCall | f5ba7e0 | 2011-02-14 20:37:25 +0000 | [diff] [blame] | 3118 | |
| 3119 | previousContext.pop(); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3120 | |
| 3121 | if (Var) { |
Argyrios Kyrtzidis | afda905 | 2013-02-24 00:05:01 +0000 | [diff] [blame] | 3122 | PassToConsumerRAII.Var = Var; |
Douglas Gregor | 583f33b | 2009-10-15 18:07:02 +0000 | [diff] [blame] | 3123 | MemberSpecializationInfo *MSInfo = OldVar->getMemberSpecializationInfo(); |
| 3124 | assert(MSInfo && "Missing member specialization information?"); |
| 3125 | Var->setTemplateSpecializationKind(MSInfo->getTemplateSpecializationKind(), |
| 3126 | MSInfo->getPointOfInstantiation()); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3127 | } |
Douglas Gregor | 7bdc152 | 2012-02-16 21:36:18 +0000 | [diff] [blame] | 3128 | Local.Exit(); |
| 3129 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3130 | if (Recursive) { |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3131 | // Define any newly required vtables. |
| 3132 | DefineUsedVTables(); |
| 3133 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3134 | // Instantiate any pending implicit instantiations found during the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3135 | // instantiation of this template. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3136 | PerformPendingInstantiations(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3137 | |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3138 | // Restore the set of pending vtables. |
| 3139 | assert(VTableUses.empty() && |
| 3140 | "VTableUses should be empty before it is discarded, " |
| 3141 | "while instantiating static data member."); |
| 3142 | VTableUses.swap(SavedVTableUses); |
| 3143 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3144 | // Restore the set of pending implicit instantiations. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3145 | assert(PendingInstantiations.empty() && |
| 3146 | "PendingInstantiations should be empty before it is discarded, " |
| 3147 | "while instantiating static data member."); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3148 | PendingInstantiations.swap(SavedPendingInstantiations); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3149 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 3150 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3151 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3152 | void |
| 3153 | Sema::InstantiateMemInitializers(CXXConstructorDecl *New, |
| 3154 | const CXXConstructorDecl *Tmpl, |
| 3155 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3156 | |
Richard Trieu | 90ab75b | 2011-09-09 03:18:59 +0000 | [diff] [blame] | 3157 | SmallVector<CXXCtorInitializer*, 4> NewInits; |
Richard Smith | 54b3ba8 | 2012-09-25 00:23:05 +0000 | [diff] [blame] | 3158 | bool AnyErrors = Tmpl->isInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3159 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3160 | // Instantiate all the initializers. |
| 3161 | for (CXXConstructorDecl::init_const_iterator Inits = Tmpl->init_begin(), |
Douglas Gregor | 72f6d67 | 2009-09-01 21:04:42 +0000 | [diff] [blame] | 3162 | InitsEnd = Tmpl->init_end(); |
| 3163 | Inits != InitsEnd; ++Inits) { |
Sean Hunt | cbb6748 | 2011-01-08 20:30:50 +0000 | [diff] [blame] | 3164 | CXXCtorInitializer *Init = *Inits; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3165 | |
Chandler Carruth | 030ef47 | 2010-09-03 21:54:20 +0000 | [diff] [blame] | 3166 | // Only instantiate written initializers, let Sema re-construct implicit |
| 3167 | // ones. |
| 3168 | if (!Init->isWritten()) |
| 3169 | continue; |
| 3170 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3171 | SourceLocation EllipsisLoc; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3172 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3173 | if (Init->isPackExpansion()) { |
| 3174 | // This is a pack expansion. We should expand it now. |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 3175 | TypeLoc BaseTL = Init->getTypeSourceInfo()->getTypeLoc(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3176 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3177 | collectUnexpandedParameterPacks(BaseTL, Unexpanded); |
| 3178 | bool ShouldExpand = false; |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 3179 | bool RetainExpansion = false; |
David Blaikie | dc84cd5 | 2013-02-20 22:23:23 +0000 | [diff] [blame] | 3180 | Optional<unsigned> NumExpansions; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3181 | if (CheckParameterPacksForExpansion(Init->getEllipsisLoc(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3182 | BaseTL.getSourceRange(), |
David Blaikie | a71f9d0 | 2011-09-22 02:34:54 +0000 | [diff] [blame] | 3183 | Unexpanded, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3184 | TemplateArgs, ShouldExpand, |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 3185 | RetainExpansion, |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3186 | NumExpansions)) { |
| 3187 | AnyErrors = true; |
| 3188 | New->setInvalidDecl(); |
| 3189 | continue; |
| 3190 | } |
| 3191 | assert(ShouldExpand && "Partial instantiation of base initializer?"); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3192 | |
| 3193 | // Loop over all of the arguments in the argument pack(s), |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 3194 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3195 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(*this, I); |
| 3196 | |
| 3197 | // Instantiate the initializer. |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3198 | ExprResult TempInit = SubstInitializer(Init->getInit(), TemplateArgs, |
| 3199 | /*CXXDirectInit=*/true); |
| 3200 | if (TempInit.isInvalid()) { |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3201 | AnyErrors = true; |
| 3202 | break; |
| 3203 | } |
| 3204 | |
| 3205 | // Instantiate the base type. |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 3206 | TypeSourceInfo *BaseTInfo = SubstType(Init->getTypeSourceInfo(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3207 | TemplateArgs, |
| 3208 | Init->getSourceLocation(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3209 | New->getDeclName()); |
| 3210 | if (!BaseTInfo) { |
| 3211 | AnyErrors = true; |
| 3212 | break; |
| 3213 | } |
| 3214 | |
| 3215 | // Build the initializer. |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 3216 | MemInitResult NewInit = BuildBaseInitializer(BaseTInfo->getType(), |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3217 | BaseTInfo, TempInit.take(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3218 | New->getParent(), |
| 3219 | SourceLocation()); |
| 3220 | if (NewInit.isInvalid()) { |
| 3221 | AnyErrors = true; |
| 3222 | break; |
| 3223 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3224 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3225 | NewInits.push_back(NewInit.get()); |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3226 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3227 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 3228 | continue; |
| 3229 | } |
| 3230 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 3231 | // Instantiate the initializer. |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3232 | ExprResult TempInit = SubstInitializer(Init->getInit(), TemplateArgs, |
| 3233 | /*CXXDirectInit=*/true); |
| 3234 | if (TempInit.isInvalid()) { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 3235 | AnyErrors = true; |
| 3236 | continue; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3237 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3238 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3239 | MemInitResult NewInit; |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 3240 | if (Init->isDelegatingInitializer() || Init->isBaseInitializer()) { |
| 3241 | TypeSourceInfo *TInfo = SubstType(Init->getTypeSourceInfo(), |
| 3242 | TemplateArgs, |
| 3243 | Init->getSourceLocation(), |
| 3244 | New->getDeclName()); |
| 3245 | if (!TInfo) { |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 3246 | AnyErrors = true; |
Douglas Gregor | 802ab45 | 2009-12-02 22:36:29 +0000 | [diff] [blame] | 3247 | New->setInvalidDecl(); |
| 3248 | continue; |
| 3249 | } |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 3250 | |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 3251 | if (Init->isBaseInitializer()) |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3252 | NewInit = BuildBaseInitializer(TInfo->getType(), TInfo, TempInit.take(), |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 3253 | New->getParent(), EllipsisLoc); |
| 3254 | else |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3255 | NewInit = BuildDelegatingInitializer(TInfo, TempInit.take(), |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 3256 | cast<CXXRecordDecl>(CurContext->getParent())); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3257 | } else if (Init->isMemberInitializer()) { |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 3258 | FieldDecl *Member = cast_or_null<FieldDecl>(FindInstantiatedDecl( |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 3259 | Init->getMemberLocation(), |
| 3260 | Init->getMember(), |
| 3261 | TemplateArgs)); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 3262 | if (!Member) { |
| 3263 | AnyErrors = true; |
| 3264 | New->setInvalidDecl(); |
| 3265 | continue; |
| 3266 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3267 | |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3268 | NewInit = BuildMemberInitializer(Member, TempInit.take(), |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 3269 | Init->getSourceLocation()); |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 3270 | } else if (Init->isIndirectMemberInitializer()) { |
| 3271 | IndirectFieldDecl *IndirectMember = |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 3272 | cast_or_null<IndirectFieldDecl>(FindInstantiatedDecl( |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 3273 | Init->getMemberLocation(), |
| 3274 | Init->getIndirectMember(), TemplateArgs)); |
| 3275 | |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 3276 | if (!IndirectMember) { |
| 3277 | AnyErrors = true; |
| 3278 | New->setInvalidDecl(); |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 3279 | continue; |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 3280 | } |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 3281 | |
Sebastian Redl | 5b9cc5d | 2012-02-11 23:51:47 +0000 | [diff] [blame] | 3282 | NewInit = BuildMemberInitializer(IndirectMember, TempInit.take(), |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 3283 | Init->getSourceLocation()); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3284 | } |
| 3285 | |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 3286 | if (NewInit.isInvalid()) { |
| 3287 | AnyErrors = true; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3288 | New->setInvalidDecl(); |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 3289 | } else { |
Richard Trieu | 90ab75b | 2011-09-09 03:18:59 +0000 | [diff] [blame] | 3290 | NewInits.push_back(NewInit.get()); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3291 | } |
| 3292 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3293 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3294 | // Assign all the initializers to the new constructor. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 3295 | ActOnMemInitializers(New, |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3296 | /*FIXME: ColonLoc */ |
| 3297 | SourceLocation(), |
David Blaikie | 93c8617 | 2013-01-17 05:26:25 +0000 | [diff] [blame] | 3298 | NewInits, |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 3299 | AnyErrors); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 3300 | } |
| 3301 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3302 | // TODO: this could be templated if the various decl types used the |
| 3303 | // same method name. |
| 3304 | static bool isInstantiationOf(ClassTemplateDecl *Pattern, |
| 3305 | ClassTemplateDecl *Instance) { |
| 3306 | Pattern = Pattern->getCanonicalDecl(); |
| 3307 | |
| 3308 | do { |
| 3309 | Instance = Instance->getCanonicalDecl(); |
| 3310 | if (Pattern == Instance) return true; |
| 3311 | Instance = Instance->getInstantiatedFromMemberTemplate(); |
| 3312 | } while (Instance); |
| 3313 | |
| 3314 | return false; |
| 3315 | } |
| 3316 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 3317 | static bool isInstantiationOf(FunctionTemplateDecl *Pattern, |
| 3318 | FunctionTemplateDecl *Instance) { |
| 3319 | Pattern = Pattern->getCanonicalDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3320 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 3321 | do { |
| 3322 | Instance = Instance->getCanonicalDecl(); |
| 3323 | if (Pattern == Instance) return true; |
| 3324 | Instance = Instance->getInstantiatedFromMemberTemplate(); |
| 3325 | } while (Instance); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3326 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 3327 | return false; |
| 3328 | } |
| 3329 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3330 | static bool |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 3331 | isInstantiationOf(ClassTemplatePartialSpecializationDecl *Pattern, |
| 3332 | ClassTemplatePartialSpecializationDecl *Instance) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3333 | Pattern |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 3334 | = cast<ClassTemplatePartialSpecializationDecl>(Pattern->getCanonicalDecl()); |
| 3335 | do { |
| 3336 | Instance = cast<ClassTemplatePartialSpecializationDecl>( |
| 3337 | Instance->getCanonicalDecl()); |
| 3338 | if (Pattern == Instance) |
| 3339 | return true; |
| 3340 | Instance = Instance->getInstantiatedFromMember(); |
| 3341 | } while (Instance); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3342 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 3343 | return false; |
| 3344 | } |
| 3345 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3346 | static bool isInstantiationOf(CXXRecordDecl *Pattern, |
| 3347 | CXXRecordDecl *Instance) { |
| 3348 | Pattern = Pattern->getCanonicalDecl(); |
| 3349 | |
| 3350 | do { |
| 3351 | Instance = Instance->getCanonicalDecl(); |
| 3352 | if (Pattern == Instance) return true; |
| 3353 | Instance = Instance->getInstantiatedFromMemberClass(); |
| 3354 | } while (Instance); |
| 3355 | |
| 3356 | return false; |
| 3357 | } |
| 3358 | |
| 3359 | static bool isInstantiationOf(FunctionDecl *Pattern, |
| 3360 | FunctionDecl *Instance) { |
| 3361 | Pattern = Pattern->getCanonicalDecl(); |
| 3362 | |
| 3363 | do { |
| 3364 | Instance = Instance->getCanonicalDecl(); |
| 3365 | if (Pattern == Instance) return true; |
| 3366 | Instance = Instance->getInstantiatedFromMemberFunction(); |
| 3367 | } while (Instance); |
| 3368 | |
| 3369 | return false; |
| 3370 | } |
| 3371 | |
| 3372 | static bool isInstantiationOf(EnumDecl *Pattern, |
| 3373 | EnumDecl *Instance) { |
| 3374 | Pattern = Pattern->getCanonicalDecl(); |
| 3375 | |
| 3376 | do { |
| 3377 | Instance = Instance->getCanonicalDecl(); |
| 3378 | if (Pattern == Instance) return true; |
| 3379 | Instance = Instance->getInstantiatedFromMemberEnum(); |
| 3380 | } while (Instance); |
| 3381 | |
| 3382 | return false; |
| 3383 | } |
| 3384 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3385 | static bool isInstantiationOf(UsingShadowDecl *Pattern, |
| 3386 | UsingShadowDecl *Instance, |
| 3387 | ASTContext &C) { |
| 3388 | return C.getInstantiatedFromUsingShadowDecl(Instance) == Pattern; |
| 3389 | } |
| 3390 | |
| 3391 | static bool isInstantiationOf(UsingDecl *Pattern, |
| 3392 | UsingDecl *Instance, |
| 3393 | ASTContext &C) { |
| 3394 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
| 3395 | } |
| 3396 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 3397 | static bool isInstantiationOf(UnresolvedUsingValueDecl *Pattern, |
| 3398 | UsingDecl *Instance, |
| 3399 | ASTContext &C) { |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3400 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 3401 | } |
| 3402 | |
| 3403 | static bool isInstantiationOf(UnresolvedUsingTypenameDecl *Pattern, |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3404 | UsingDecl *Instance, |
| 3405 | ASTContext &C) { |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3406 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3407 | } |
| 3408 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3409 | static bool isInstantiationOfStaticDataMember(VarDecl *Pattern, |
| 3410 | VarDecl *Instance) { |
| 3411 | assert(Instance->isStaticDataMember()); |
| 3412 | |
| 3413 | Pattern = Pattern->getCanonicalDecl(); |
| 3414 | |
| 3415 | do { |
| 3416 | Instance = Instance->getCanonicalDecl(); |
| 3417 | if (Pattern == Instance) return true; |
| 3418 | Instance = Instance->getInstantiatedFromStaticDataMember(); |
| 3419 | } while (Instance); |
| 3420 | |
| 3421 | return false; |
| 3422 | } |
| 3423 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3424 | // Other is the prospective instantiation |
| 3425 | // D is the prospective pattern |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3426 | static bool isInstantiationOf(ASTContext &Ctx, NamedDecl *D, Decl *Other) { |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3427 | if (D->getKind() != Other->getKind()) { |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 3428 | if (UnresolvedUsingTypenameDecl *UUD |
| 3429 | = dyn_cast<UnresolvedUsingTypenameDecl>(D)) { |
| 3430 | if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { |
| 3431 | return isInstantiationOf(UUD, UD, Ctx); |
| 3432 | } |
| 3433 | } |
| 3434 | |
| 3435 | if (UnresolvedUsingValueDecl *UUD |
| 3436 | = dyn_cast<UnresolvedUsingValueDecl>(D)) { |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3437 | if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { |
| 3438 | return isInstantiationOf(UUD, UD, Ctx); |
| 3439 | } |
| 3440 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3441 | |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3442 | return false; |
| 3443 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3444 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3445 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Other)) |
| 3446 | return isInstantiationOf(cast<CXXRecordDecl>(D), Record); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3447 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3448 | if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Other)) |
| 3449 | return isInstantiationOf(cast<FunctionDecl>(D), Function); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3450 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3451 | if (EnumDecl *Enum = dyn_cast<EnumDecl>(Other)) |
| 3452 | return isInstantiationOf(cast<EnumDecl>(D), Enum); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3453 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3454 | if (VarDecl *Var = dyn_cast<VarDecl>(Other)) |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3455 | if (Var->isStaticDataMember()) |
| 3456 | return isInstantiationOfStaticDataMember(cast<VarDecl>(D), Var); |
| 3457 | |
| 3458 | if (ClassTemplateDecl *Temp = dyn_cast<ClassTemplateDecl>(Other)) |
| 3459 | return isInstantiationOf(cast<ClassTemplateDecl>(D), Temp); |
Douglas Gregor | a5bf7f1 | 2009-08-28 22:03:51 +0000 | [diff] [blame] | 3460 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 3461 | if (FunctionTemplateDecl *Temp = dyn_cast<FunctionTemplateDecl>(Other)) |
| 3462 | return isInstantiationOf(cast<FunctionTemplateDecl>(D), Temp); |
| 3463 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 3464 | if (ClassTemplatePartialSpecializationDecl *PartialSpec |
| 3465 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(Other)) |
| 3466 | return isInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(D), |
| 3467 | PartialSpec); |
| 3468 | |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 3469 | if (FieldDecl *Field = dyn_cast<FieldDecl>(Other)) { |
| 3470 | if (!Field->getDeclName()) { |
| 3471 | // This is an unnamed field. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3472 | return Ctx.getInstantiatedFromUnnamedFieldDecl(Field) == |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 3473 | cast<FieldDecl>(D); |
| 3474 | } |
| 3475 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3476 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3477 | if (UsingDecl *Using = dyn_cast<UsingDecl>(Other)) |
| 3478 | return isInstantiationOf(cast<UsingDecl>(D), Using, Ctx); |
| 3479 | |
| 3480 | if (UsingShadowDecl *Shadow = dyn_cast<UsingShadowDecl>(Other)) |
| 3481 | return isInstantiationOf(cast<UsingShadowDecl>(D), Shadow, Ctx); |
| 3482 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3483 | return D->getDeclName() && isa<NamedDecl>(Other) && |
| 3484 | D->getDeclName() == cast<NamedDecl>(Other)->getDeclName(); |
| 3485 | } |
| 3486 | |
| 3487 | template<typename ForwardIterator> |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3488 | static NamedDecl *findInstantiationOf(ASTContext &Ctx, |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3489 | NamedDecl *D, |
| 3490 | ForwardIterator first, |
| 3491 | ForwardIterator last) { |
| 3492 | for (; first != last; ++first) |
| 3493 | if (isInstantiationOf(Ctx, D, *first)) |
| 3494 | return cast<NamedDecl>(*first); |
| 3495 | |
| 3496 | return 0; |
| 3497 | } |
| 3498 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3499 | /// \brief Finds the instantiation of the given declaration context |
| 3500 | /// within the current instantiation. |
| 3501 | /// |
| 3502 | /// \returns NULL if there was an error |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3503 | DeclContext *Sema::FindInstantiatedContext(SourceLocation Loc, DeclContext* DC, |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3504 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3505 | if (NamedDecl *D = dyn_cast<NamedDecl>(DC)) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3506 | Decl* ID = FindInstantiatedDecl(Loc, D, TemplateArgs); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3507 | return cast_or_null<DeclContext>(ID); |
| 3508 | } else return DC; |
| 3509 | } |
| 3510 | |
Douglas Gregor | ed961e7 | 2009-05-27 17:54:46 +0000 | [diff] [blame] | 3511 | /// \brief Find the instantiation of the given declaration within the |
| 3512 | /// current instantiation. |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3513 | /// |
| 3514 | /// This routine is intended to be used when \p D is a declaration |
| 3515 | /// referenced from within a template, that needs to mapped into the |
| 3516 | /// corresponding declaration within an instantiation. For example, |
| 3517 | /// given: |
| 3518 | /// |
| 3519 | /// \code |
| 3520 | /// template<typename T> |
| 3521 | /// struct X { |
| 3522 | /// enum Kind { |
| 3523 | /// KnownValue = sizeof(T) |
| 3524 | /// }; |
| 3525 | /// |
| 3526 | /// bool getKind() const { return KnownValue; } |
| 3527 | /// }; |
| 3528 | /// |
| 3529 | /// template struct X<int>; |
| 3530 | /// \endcode |
| 3531 | /// |
| 3532 | /// In the instantiation of X<int>::getKind(), we need to map the |
| 3533 | /// EnumConstantDecl for KnownValue (which refers to |
James Dennett | f198d12 | 2012-06-17 03:36:08 +0000 | [diff] [blame] | 3534 | /// X<T>::\<Kind>\::KnownValue) to its instantiation |
James Dennett | ef2b5b3 | 2012-06-15 22:23:43 +0000 | [diff] [blame] | 3535 | /// (X<int>::\<Kind>\::KnownValue). InstantiateCurrentDeclRef() performs |
Douglas Gregor | ed961e7 | 2009-05-27 17:54:46 +0000 | [diff] [blame] | 3536 | /// this mapping from within the instantiation of X<int>. |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3537 | NamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D, |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3538 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3539 | DeclContext *ParentDC = D->getDeclContext(); |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 3540 | if (isa<ParmVarDecl>(D) || isa<NonTypeTemplateParmDecl>(D) || |
Douglas Gregor | 6d3e627 | 2010-02-05 19:54:12 +0000 | [diff] [blame] | 3541 | isa<TemplateTypeParmDecl>(D) || isa<TemplateTemplateParmDecl>(D) || |
Douglas Gregor | 7bdc152 | 2012-02-16 21:36:18 +0000 | [diff] [blame] | 3542 | (ParentDC->isFunctionOrMethod() && ParentDC->isDependentContext()) || |
| 3543 | (isa<CXXRecordDecl>(D) && cast<CXXRecordDecl>(D)->isLambda())) { |
Douglas Gregor | 2bba76b | 2009-05-27 17:07:49 +0000 | [diff] [blame] | 3544 | // D is a local of some kind. Look into the map of local |
| 3545 | // declarations to their instantiations. |
Chris Lattner | d8e5499 | 2011-02-17 19:47:42 +0000 | [diff] [blame] | 3546 | typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack; |
| 3547 | llvm::PointerUnion<Decl *, DeclArgumentPack *> *Found |
| 3548 | = CurrentInstantiationScope->findInstantiationOf(D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3549 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3550 | if (Found) { |
| 3551 | if (Decl *FD = Found->dyn_cast<Decl *>()) |
| 3552 | return cast<NamedDecl>(FD); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3553 | |
Richard Smith | 9a4db03 | 2012-09-12 00:56:43 +0000 | [diff] [blame] | 3554 | int PackIdx = ArgumentPackSubstitutionIndex; |
| 3555 | assert(PackIdx != -1 && "found declaration pack but not pack expanding"); |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3556 | return cast<NamedDecl>((*Found->get<DeclArgumentPack *>())[PackIdx]); |
| 3557 | } |
| 3558 | |
| 3559 | // If we didn't find the decl, then we must have a label decl that hasn't |
| 3560 | // been found yet. Lazily instantiate it and return it now. |
| 3561 | assert(isa<LabelDecl>(D)); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3562 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3563 | Decl *Inst = SubstDecl(D, CurContext, TemplateArgs); |
| 3564 | assert(Inst && "Failed to instantiate label??"); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3565 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3566 | CurrentInstantiationScope->InstantiatedLocal(D, Inst); |
| 3567 | return cast<LabelDecl>(Inst); |
Douglas Gregor | 2bba76b | 2009-05-27 17:07:49 +0000 | [diff] [blame] | 3568 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3569 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3570 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(D)) { |
| 3571 | if (!Record->isDependentContext()) |
| 3572 | return D; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3573 | |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3574 | // Determine whether this record is the "templated" declaration describing |
| 3575 | // a class template or class template partial specialization. |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3576 | ClassTemplateDecl *ClassTemplate = Record->getDescribedClassTemplate(); |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3577 | if (ClassTemplate) |
| 3578 | ClassTemplate = ClassTemplate->getCanonicalDecl(); |
| 3579 | else if (ClassTemplatePartialSpecializationDecl *PartialSpec |
| 3580 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(Record)) |
| 3581 | ClassTemplate = PartialSpec->getSpecializedTemplate()->getCanonicalDecl(); |
| 3582 | |
| 3583 | // Walk the current context to find either the record or an instantiation of |
| 3584 | // it. |
| 3585 | DeclContext *DC = CurContext; |
| 3586 | while (!DC->isFileContext()) { |
| 3587 | // If we're performing substitution while we're inside the template |
| 3588 | // definition, we'll find our own context. We're done. |
| 3589 | if (DC->Equals(Record)) |
| 3590 | return Record; |
| 3591 | |
| 3592 | if (CXXRecordDecl *InstRecord = dyn_cast<CXXRecordDecl>(DC)) { |
| 3593 | // Check whether we're in the process of instantiating a class template |
| 3594 | // specialization of the template we're mapping. |
| 3595 | if (ClassTemplateSpecializationDecl *InstSpec |
| 3596 | = dyn_cast<ClassTemplateSpecializationDecl>(InstRecord)){ |
| 3597 | ClassTemplateDecl *SpecTemplate = InstSpec->getSpecializedTemplate(); |
| 3598 | if (ClassTemplate && isInstantiationOf(ClassTemplate, SpecTemplate)) |
| 3599 | return InstRecord; |
| 3600 | } |
| 3601 | |
| 3602 | // Check whether we're in the process of instantiating a member class. |
| 3603 | if (isInstantiationOf(Record, InstRecord)) |
| 3604 | return InstRecord; |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3605 | } |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3606 | |
| 3607 | |
| 3608 | // Move to the outer template scope. |
| 3609 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(DC)) { |
| 3610 | if (FD->getFriendObjectKind() && FD->getDeclContext()->isFileContext()){ |
| 3611 | DC = FD->getLexicalDeclContext(); |
| 3612 | continue; |
| 3613 | } |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3614 | } |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3615 | |
| 3616 | DC = DC->getParent(); |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3617 | } |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3618 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3619 | // Fall through to deal with other dependent record types (e.g., |
| 3620 | // anonymous unions in class templates). |
| 3621 | } |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3622 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3623 | if (!ParentDC->isDependentContext()) |
| 3624 | return D; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3625 | |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3626 | ParentDC = FindInstantiatedContext(Loc, ParentDC, TemplateArgs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3627 | if (!ParentDC) |
Douglas Gregor | 44c7384 | 2009-09-01 17:53:10 +0000 | [diff] [blame] | 3628 | return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3629 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3630 | if (ParentDC != D->getDeclContext()) { |
| 3631 | // We performed some kind of instantiation in the parent context, |
| 3632 | // so now we need to look into the instantiated parent context to |
| 3633 | // find the instantiation of the declaration D. |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3634 | |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3635 | // If our context used to be dependent, we may need to instantiate |
| 3636 | // it before performing lookup into that context. |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3637 | bool IsBeingInstantiated = false; |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3638 | if (CXXRecordDecl *Spec = dyn_cast<CXXRecordDecl>(ParentDC)) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3639 | if (!Spec->isDependentContext()) { |
| 3640 | QualType T = Context.getTypeDeclType(Spec); |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3641 | const RecordType *Tag = T->getAs<RecordType>(); |
| 3642 | assert(Tag && "type of non-dependent record is not a RecordType"); |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3643 | if (Tag->isBeingDefined()) |
| 3644 | IsBeingInstantiated = true; |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3645 | if (!Tag->isBeingDefined() && |
| 3646 | RequireCompleteType(Loc, T, diag::err_incomplete_type)) |
| 3647 | return 0; |
Douglas Gregor | a43064c | 2010-11-05 23:22:45 +0000 | [diff] [blame] | 3648 | |
| 3649 | ParentDC = Tag->getDecl(); |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3650 | } |
| 3651 | } |
| 3652 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3653 | NamedDecl *Result = 0; |
| 3654 | if (D->getDeclName()) { |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3655 | DeclContext::lookup_result Found = ParentDC->lookup(D->getDeclName()); |
David Blaikie | 3bc93e3 | 2012-12-19 00:45:41 +0000 | [diff] [blame] | 3656 | Result = findInstantiationOf(Context, D, Found.begin(), Found.end()); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3657 | } else { |
| 3658 | // Since we don't have a name for the entity we're looking for, |
| 3659 | // our only option is to walk through all of the declarations to |
| 3660 | // find that name. This will occur in a few cases: |
| 3661 | // |
| 3662 | // - anonymous struct/union within a template |
| 3663 | // - unnamed class/struct/union/enum within a template |
| 3664 | // |
| 3665 | // FIXME: Find a better way to find these instantiations! |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3666 | Result = findInstantiationOf(Context, D, |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3667 | ParentDC->decls_begin(), |
| 3668 | ParentDC->decls_end()); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3669 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3670 | |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3671 | if (!Result) { |
| 3672 | if (isa<UsingShadowDecl>(D)) { |
| 3673 | // UsingShadowDecls can instantiate to nothing because of using hiding. |
| 3674 | } else if (Diags.hasErrorOccurred()) { |
| 3675 | // We've already complained about something, so most likely this |
| 3676 | // declaration failed to instantiate. There's no point in complaining |
| 3677 | // further, since this is normal in invalid code. |
| 3678 | } else if (IsBeingInstantiated) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3679 | // The class in which this member exists is currently being |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3680 | // instantiated, and we haven't gotten around to instantiating this |
| 3681 | // member yet. This can happen when the code uses forward declarations |
| 3682 | // of member classes, and introduces ordering dependencies via |
| 3683 | // template instantiation. |
| 3684 | Diag(Loc, diag::err_member_not_yet_instantiated) |
| 3685 | << D->getDeclName() |
| 3686 | << Context.getTypeDeclType(cast<CXXRecordDecl>(ParentDC)); |
| 3687 | Diag(D->getLocation(), diag::note_non_instantiated_member_here); |
Richard Smith | 0724b7c | 2012-03-26 20:28:16 +0000 | [diff] [blame] | 3688 | } else if (EnumConstantDecl *ED = dyn_cast<EnumConstantDecl>(D)) { |
| 3689 | // This enumeration constant was found when the template was defined, |
| 3690 | // but can't be found in the instantiation. This can happen if an |
| 3691 | // unscoped enumeration member is explicitly specialized. |
| 3692 | EnumDecl *Enum = cast<EnumDecl>(ED->getLexicalDeclContext()); |
| 3693 | EnumDecl *Spec = cast<EnumDecl>(FindInstantiatedDecl(Loc, Enum, |
| 3694 | TemplateArgs)); |
| 3695 | assert(Spec->getTemplateSpecializationKind() == |
| 3696 | TSK_ExplicitSpecialization); |
| 3697 | Diag(Loc, diag::err_enumerator_does_not_exist) |
| 3698 | << D->getDeclName() |
| 3699 | << Context.getTypeDeclType(cast<TypeDecl>(Spec->getDeclContext())); |
| 3700 | Diag(Spec->getLocation(), diag::note_enum_specialized_here) |
| 3701 | << Context.getTypeDeclType(Spec); |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3702 | } else { |
| 3703 | // We should have found something, but didn't. |
| 3704 | llvm_unreachable("Unable to find instantiation of declaration!"); |
| 3705 | } |
| 3706 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3707 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3708 | D = Result; |
| 3709 | } |
| 3710 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3711 | return D; |
| 3712 | } |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3713 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3714 | /// \brief Performs template instantiation for all implicit template |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3715 | /// instantiations we have seen until this point. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3716 | void Sema::PerformPendingInstantiations(bool LocalOnly) { |
Douglas Gregor | 6e4a3f5 | 2011-07-28 19:49:54 +0000 | [diff] [blame] | 3717 | // Load pending instantiations from the external source. |
| 3718 | if (!LocalOnly && ExternalSource) { |
Richard Smith | b9d0b76 | 2012-07-27 04:22:15 +0000 | [diff] [blame] | 3719 | SmallVector<PendingImplicitInstantiation, 4> Pending; |
Douglas Gregor | 6e4a3f5 | 2011-07-28 19:49:54 +0000 | [diff] [blame] | 3720 | ExternalSource->ReadPendingInstantiations(Pending); |
| 3721 | PendingInstantiations.insert(PendingInstantiations.begin(), |
| 3722 | Pending.begin(), Pending.end()); |
| 3723 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3724 | |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3725 | while (!PendingLocalImplicitInstantiations.empty() || |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3726 | (!LocalOnly && !PendingInstantiations.empty())) { |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3727 | PendingImplicitInstantiation Inst; |
| 3728 | |
| 3729 | if (PendingLocalImplicitInstantiations.empty()) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3730 | Inst = PendingInstantiations.front(); |
| 3731 | PendingInstantiations.pop_front(); |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3732 | } else { |
| 3733 | Inst = PendingLocalImplicitInstantiations.front(); |
| 3734 | PendingLocalImplicitInstantiations.pop_front(); |
| 3735 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3736 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3737 | // Instantiate function definitions |
| 3738 | if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Inst.first)) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3739 | PrettyDeclStackTraceEntry CrashInfo(*this, Function, SourceLocation(), |
| 3740 | "instantiating function definition"); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3741 | bool DefinitionRequired = Function->getTemplateSpecializationKind() == |
| 3742 | TSK_ExplicitInstantiationDefinition; |
| 3743 | InstantiateFunctionDefinition(/*FIXME:*/Inst.second, Function, true, |
| 3744 | DefinitionRequired); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3745 | continue; |
| 3746 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3747 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3748 | // Instantiate static data member definitions. |
| 3749 | VarDecl *Var = cast<VarDecl>(Inst.first); |
| 3750 | assert(Var->isStaticDataMember() && "Not a static data member?"); |
Anders Carlsson | c17fb7b | 2009-09-01 05:12:24 +0000 | [diff] [blame] | 3751 | |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3752 | // Don't try to instantiate declarations if the most recent redeclaration |
| 3753 | // is invalid. |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 3754 | if (Var->getMostRecentDecl()->isInvalidDecl()) |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3755 | continue; |
| 3756 | |
| 3757 | // Check if the most recent declaration has changed the specialization kind |
| 3758 | // and removed the need for implicit instantiation. |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 3759 | switch (Var->getMostRecentDecl()->getTemplateSpecializationKind()) { |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3760 | case TSK_Undeclared: |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 3761 | llvm_unreachable("Cannot instantitiate an undeclared specialization."); |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3762 | case TSK_ExplicitInstantiationDeclaration: |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3763 | case TSK_ExplicitSpecialization: |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3764 | continue; // No longer need to instantiate this type. |
| 3765 | case TSK_ExplicitInstantiationDefinition: |
| 3766 | // We only need an instantiation if the pending instantiation *is* the |
| 3767 | // explicit instantiation. |
Douglas Gregor | ef96ee0 | 2012-01-14 16:38:05 +0000 | [diff] [blame] | 3768 | if (Var != Var->getMostRecentDecl()) continue; |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3769 | case TSK_ImplicitInstantiation: |
| 3770 | break; |
| 3771 | } |
| 3772 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3773 | PrettyDeclStackTraceEntry CrashInfo(*this, Var, Var->getLocation(), |
| 3774 | "instantiating static data member " |
| 3775 | "definition"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3776 | |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3777 | bool DefinitionRequired = Var->getTemplateSpecializationKind() == |
| 3778 | TSK_ExplicitInstantiationDefinition; |
| 3779 | InstantiateStaticDataMemberDefinition(/*FIXME:*/Inst.second, Var, true, |
| 3780 | DefinitionRequired); |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3781 | } |
| 3782 | } |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 3783 | |
| 3784 | void Sema::PerformDependentDiagnostics(const DeclContext *Pattern, |
| 3785 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
| 3786 | for (DeclContext::ddiag_iterator I = Pattern->ddiag_begin(), |
| 3787 | E = Pattern->ddiag_end(); I != E; ++I) { |
| 3788 | DependentDiagnostic *DD = *I; |
| 3789 | |
| 3790 | switch (DD->getKind()) { |
| 3791 | case DependentDiagnostic::Access: |
| 3792 | HandleDependentAccessCheck(*DD, TemplateArgs); |
| 3793 | break; |
| 3794 | } |
| 3795 | } |
| 3796 | } |