SemaTemplateInstantiateDecl.cpp revision 561f81243f665cf2001caadc45df505f826b72d6
18dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor//===--- SemaTemplateInstantiateDecl.cpp - C++ Template Decl Instantiation ===/ 28dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// 38dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// The LLVM Compiler Infrastructure 48dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// 58dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// This file is distributed under the University of Illinois Open Source 68dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// License. See LICENSE.TXT for details. 78dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor//===----------------------------------------------------------------------===/ 88dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// 98dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// This file implements C++ template instantiation for declarations. 108dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor// 118dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor//===----------------------------------------------------------------------===/ 122d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 13e737f5041a36d0befb39ffeed8d50ba15916d3daDouglas Gregor#include "clang/Sema/Lookup.h" 14f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall#include "clang/Sema/PrettyDeclStackTrace.h" 157cd088e519d7e6caa4c4c12db52e0e4ae35d25c2John McCall#include "clang/Sema/Template.h" 16aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor#include "clang/AST/ASTConsumer.h" 178dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor#include "clang/AST/ASTContext.h" 188dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor#include "clang/AST/DeclTemplate.h" 198dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor#include "clang/AST/DeclVisitor.h" 200c01d18094100db92d38daa923c95661512db203John McCall#include "clang/AST/DependentDiagnostic.h" 218dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor#include "clang/AST/Expr.h" 22a88cfbfac9bbcbb9858f048d6d73a48711d8e93dDouglas Gregor#include "clang/AST/ExprCXX.h" 2321ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall#include "clang/AST/TypeLoc.h" 2483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor#include "clang/Lex/Preprocessor.h" 258dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 268dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregorusing namespace clang; 278dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 28b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCallbool TemplateDeclInstantiator::SubstQualifier(const DeclaratorDecl *OldDecl, 29b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall DeclaratorDecl *NewDecl) { 30c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!OldDecl->getQualifierLoc()) 31c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return false; 32c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor 33c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc NewQualifierLoc 34c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(OldDecl->getQualifierLoc(), 35c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor TemplateArgs); 36c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor 37c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!NewQualifierLoc) 38b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return true; 39c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor 40c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewDecl->setQualifierInfo(NewQualifierLoc); 41b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return false; 42b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall} 43b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 44b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCallbool TemplateDeclInstantiator::SubstQualifier(const TagDecl *OldDecl, 45b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall TagDecl *NewDecl) { 46c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!OldDecl->getQualifierLoc()) 47c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return false; 48c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor 49c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc NewQualifierLoc 50c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(OldDecl->getQualifierLoc(), 51c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor TemplateArgs); 52c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor 53c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!NewQualifierLoc) 54b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return true; 55c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor 56c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewDecl->setQualifierInfo(NewQualifierLoc); 57b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return false; 58b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall} 59b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 604ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth// FIXME: Is this still too simple? 611d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCallvoid Sema::InstantiateAttrs(const MultiLevelTemplateArgumentList &TemplateArgs, 621d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall Decl *Tmpl, Decl *New) { 63cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (AttrVec::const_iterator i = Tmpl->attr_begin(), e = Tmpl->attr_end(); 64cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 65cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt const Attr *TmplAttr = *i; 664ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // FIXME: This should be generalized to more than just the AlignedAttr. 674ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (const AlignedAttr *Aligned = dyn_cast<AlignedAttr>(TmplAttr)) { 68cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (Aligned->isAlignmentDependent()) { 694ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // The alignment expression is not potentially evaluated. 701d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall EnterExpressionEvaluationContext Unevaluated(*this, 71f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::Unevaluated); 724ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 73cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (Aligned->isAlignmentExpr()) { 7460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = SubstExpr(Aligned->getAlignmentExpr(), 757663f396651716c82280f8fdcf97ad8e27c1ce5aNick Lewycky TemplateArgs); 76cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (!Result.isInvalid()) 77cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt AddAlignedAttr(Aligned->getLocation(), New, Result.takeAs<Expr>()); 78cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 79cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt else { 80cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TypeSourceInfo *Result = SubstType(Aligned->getAlignmentType(), 817663f396651716c82280f8fdcf97ad8e27c1ce5aNick Lewycky TemplateArgs, 827663f396651716c82280f8fdcf97ad8e27c1ce5aNick Lewycky Aligned->getLocation(), 837663f396651716c82280f8fdcf97ad8e27c1ce5aNick Lewycky DeclarationName()); 84cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (Result) 85cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt AddAlignedAttr(Aligned->getLocation(), New, Result); 86cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 874ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth continue; 884ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 894ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 904ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 91d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson // FIXME: Is cloning correct for all attributes? 921d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall Attr *NewAttr = TmplAttr->clone(Context); 93d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson New->addAttr(NewAttr); 94d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson } 95d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson} 96d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson 974f722be4587a7a0dece399fb5405dda158971ae1Douglas GregorDecl * 984f722be4587a7a0dece399fb5405dda158971ae1Douglas GregorTemplateDeclInstantiator::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 994f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor assert(false && "Translation units cannot be instantiated"); 1004f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor return D; 1014f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor} 1024f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor 1034f722be4587a7a0dece399fb5405dda158971ae1Douglas GregorDecl * 10457ad37823e198f977cac605dbfbaefb4daf325e9Chris LattnerTemplateDeclInstantiator::VisitLabelDecl(LabelDecl *D) { 10557ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner LabelDecl *Inst = LabelDecl::Create(SemaRef.Context, Owner, D->getLocation(), 10657ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner D->getIdentifier()); 10757ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner Owner->addDecl(Inst); 10857ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return Inst; 10957ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner} 11057ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 11157ad37823e198f977cac605dbfbaefb4daf325e9Chris LattnerDecl * 1124f722be4587a7a0dece399fb5405dda158971ae1Douglas GregorTemplateDeclInstantiator::VisitNamespaceDecl(NamespaceDecl *D) { 1134f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor assert(false && "Namespaces cannot be instantiated"); 1144f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor return D; 1154f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor} 1164f722be4587a7a0dece399fb5405dda158971ae1Douglas Gregor 1173dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCallDecl * 1183dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCallTemplateDeclInstantiator::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 1193dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall NamespaceAliasDecl *Inst 1203dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall = NamespaceAliasDecl::Create(SemaRef.Context, Owner, 1213dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall D->getNamespaceLoc(), 1223dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall D->getAliasLoc(), 1230cfaf6a270ecd0f5c7e541a8047c87948317548bDouglas Gregor D->getIdentifier(), 1240cfaf6a270ecd0f5c7e541a8047c87948317548bDouglas Gregor D->getQualifierLoc(), 1253dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall D->getTargetNameLoc(), 1263dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall D->getNamespace()); 1273dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall Owner->addDecl(Inst); 1283dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall return Inst; 1293dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall} 1303dbd3d5c04cd5abd7dfd83b15f51d7c610a3c512John McCall 1313e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard SmithDecl *TemplateDeclInstantiator::InstantiateTypedefNameDecl(TypedefNameDecl *D, 1323e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith bool IsTypeAlias) { 1338dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor bool Invalid = false; 134a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = D->getTypeSourceInfo(); 135561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (DI->getType()->isInstantiationDependentType() || 136836adf6771d5170d936599dfcce21687e37e9bbfDouglas Gregor DI->getType()->isVariablyModifiedType()) { 137ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall DI = SemaRef.SubstType(DI, TemplateArgs, 138ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall D->getLocation(), D->getDeclName()); 139ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (!DI) { 1408dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Invalid = true; 141a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = SemaRef.Context.getTrivialTypeSourceInfo(SemaRef.Context.IntTy); 1428dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 143b4eeaff1595b7d0a8fbc2b3c8bec7dc63f48b7fdDouglas Gregor } else { 144b4eeaff1595b7d0a8fbc2b3c8bec7dc63f48b7fdDouglas Gregor SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); 1458dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 1461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1478dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // Create the new typedef 148162e1c1b487352434552147967c3dd296ebee2f7Richard Smith TypedefNameDecl *Typedef; 149162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypeAlias) 150162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Typedef = TypeAliasDecl::Create(SemaRef.Context, Owner, D->getLocStart(), 151162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D->getLocation(), D->getIdentifier(), DI); 152162e1c1b487352434552147967c3dd296ebee2f7Richard Smith else 153162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Typedef = TypedefDecl::Create(SemaRef.Context, Owner, D->getLocStart(), 154162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D->getLocation(), D->getIdentifier(), DI); 1558dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (Invalid) 1568dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Typedef->setInvalidDecl(); 1578dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 158cde5a400dbc9655eddf0f383585d3cf67c11c539John McCall // If the old typedef was the name for linkage purposes of an anonymous 159cde5a400dbc9655eddf0f383585d3cf67c11c539John McCall // tag decl, re-establish that relationship for the new typedef. 160cde5a400dbc9655eddf0f383585d3cf67c11c539John McCall if (const TagType *oldTagType = D->getUnderlyingType()->getAs<TagType>()) { 161cde5a400dbc9655eddf0f383585d3cf67c11c539John McCall TagDecl *oldTag = oldTagType->getDecl(); 162162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (oldTag->getTypedefNameForAnonDecl() == D) { 163cde5a400dbc9655eddf0f383585d3cf67c11c539John McCall TagDecl *newTag = DI->getType()->castAs<TagType>()->getDecl(); 164162e1c1b487352434552147967c3dd296ebee2f7Richard Smith assert(!newTag->getIdentifier() && !newTag->getTypedefNameForAnonDecl()); 165162e1c1b487352434552147967c3dd296ebee2f7Richard Smith newTag->setTypedefNameForAnonDecl(Typedef); 166cde5a400dbc9655eddf0f383585d3cf67c11c539John McCall } 167d57a38ee02c285d69d05fed6df0d7406b2517888Douglas Gregor } 168d57a38ee02c285d69d05fed6df0d7406b2517888Douglas Gregor 169162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *Prev = D->getPreviousDeclaration()) { 1707c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor NamedDecl *InstPrev = SemaRef.FindInstantiatedDecl(D->getLocation(), Prev, 1717c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor TemplateArgs); 172b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!InstPrev) 173b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor return 0; 174b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor 175162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Typedef->setPreviousDeclaration(cast<TypedefNameDecl>(InstPrev)); 1765126fd0dd92c4ec211c837ee78d5ce59c68dcbd5John McCall } 1775126fd0dd92c4ec211c837ee78d5ce59c68dcbd5John McCall 1781d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Typedef); 179d57a38ee02c285d69d05fed6df0d7406b2517888Douglas Gregor 18046460a68f6508775e98c19b4bb8454bb471aac24John McCall Typedef->setAccess(D->getAccess()); 1811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1828dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Typedef; 1838dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 1848dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 185162e1c1b487352434552147967c3dd296ebee2f7Richard SmithDecl *TemplateDeclInstantiator::VisitTypedefDecl(TypedefDecl *D) { 1863e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/false); 1873e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Owner->addDecl(Typedef); 1883e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return Typedef; 189162e1c1b487352434552147967c3dd296ebee2f7Richard Smith} 190162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 191162e1c1b487352434552147967c3dd296ebee2f7Richard SmithDecl *TemplateDeclInstantiator::VisitTypeAliasDecl(TypeAliasDecl *D) { 1923e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/true); 1933e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Owner->addDecl(Typedef); 1943e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return Typedef; 1953e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith} 1963e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 1973e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard SmithDecl * 1983e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard SmithTemplateDeclInstantiator::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1993e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith // Create a local instantiation scope for this type alias template, which 2003e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith // will contain the instantiations of the template parameters. 2013e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith LocalInstantiationScope Scope(SemaRef); 2023e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2033e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith TemplateParameterList *TempParams = D->getTemplateParameters(); 2043e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 2053e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (!InstParams) 2063e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return 0; 2073e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2083e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith TypeAliasDecl *Pattern = D->getTemplatedDecl(); 2093e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2103e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith TypeAliasTemplateDecl *PrevAliasTemplate = 0; 2113e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (Pattern->getPreviousDeclaration()) { 2123e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); 2133e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (Found.first != Found.second) { 2143e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith PrevAliasTemplate = dyn_cast<TypeAliasTemplateDecl>(*Found.first); 2153e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith } 2163e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith } 2173e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2183e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith TypeAliasDecl *AliasInst = cast_or_null<TypeAliasDecl>( 2193e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith InstantiateTypedefNameDecl(Pattern, /*IsTypeAlias=*/true)); 2203e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (!AliasInst) 2213e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return 0; 2223e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2233e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith TypeAliasTemplateDecl *Inst 2243e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith = TypeAliasTemplateDecl::Create(SemaRef.Context, Owner, D->getLocation(), 2253e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D->getDeclName(), InstParams, AliasInst); 2263e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (PrevAliasTemplate) 2273e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Inst->setPreviousDeclaration(PrevAliasTemplate); 2283e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2293e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Inst->setAccess(D->getAccess()); 2303e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2313e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith if (!PrevAliasTemplate) 2323e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Inst->setInstantiatedFromMemberTemplate(D); 2333e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2343e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith Owner->addDecl(Inst); 2353e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith 2363e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith return Inst; 237162e1c1b487352434552147967c3dd296ebee2f7Richard Smith} 238162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 2396b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \brief Instantiate an initializer, breaking it into separate 2406b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// initialization arguments. 2416b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2426b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param S The semantic analysis object. 2436b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2446b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param Init The initializer to instantiate. 2456b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2466b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param TemplateArgs Template arguments to be substituted into the 2476b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// initializer. 2486b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2496b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param NewArgs Will be filled in with the instantiation arguments. 2506b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2516b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \returns true if an error occurred, false otherwise 2526b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregorstatic bool InstantiateInitializer(Sema &S, Expr *Init, 2536b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs, 2546b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation &LParenLoc, 2557663f396651716c82280f8fdcf97ad8e27c1ce5aNick Lewycky ASTOwningVector<Expr*> &NewArgs, 2566b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation &RParenLoc) { 2576b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor NewArgs.clear(); 2586b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor LParenLoc = SourceLocation(); 2596b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor RParenLoc = SourceLocation(); 2606b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2616b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (!Init) 2626b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor return false; 2636b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2644765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall if (ExprWithCleanups *ExprTemp = dyn_cast<ExprWithCleanups>(Init)) 2656b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Init = ExprTemp->getSubExpr(); 2666b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2676b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor while (CXXBindTemporaryExpr *Binder = dyn_cast<CXXBindTemporaryExpr>(Init)) 2686b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Init = Binder->getSubExpr(); 2696b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2706b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Init)) 2716b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Init = ICE->getSubExprAsWritten(); 2726b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2736b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) { 2746b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor LParenLoc = ParenList->getLParenLoc(); 2756b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor RParenLoc = ParenList->getRParenLoc(); 27691fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor return S.SubstExprs(ParenList->getExprs(), ParenList->getNumExprs(), 27791fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor true, TemplateArgs, NewArgs); 2786b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor } 2796b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2806b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (CXXConstructExpr *Construct = dyn_cast<CXXConstructExpr>(Init)) { 28128329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor if (!isa<CXXTemporaryObjectExpr>(Construct)) { 28291fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor if (S.SubstExprs(Construct->getArgs(), Construct->getNumArgs(), true, 28391fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor TemplateArgs, NewArgs)) 28428329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor return true; 28528329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor 28628329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor // FIXME: Fake locations! 28728329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor LParenLoc = S.PP.getLocForEndOfToken(Init->getLocStart()); 288a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor RParenLoc = LParenLoc; 28928329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor return false; 29028329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor } 2916b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor } 2926b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 29360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = S.SubstExpr(Init, TemplateArgs); 2946b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (Result.isInvalid()) 2956b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor return true; 2966b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2976b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor NewArgs.push_back(Result.takeAs<Expr>()); 2986b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor return false; 2996b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor} 3006b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 3013d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas GregorDecl *TemplateDeclInstantiator::VisitVarDecl(VarDecl *D) { 3029901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor // If this is the variable for an anonymous struct or union, 3039901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor // instantiate the anonymous struct/union type first. 3049901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (const RecordType *RecordTy = D->getType()->getAs<RecordType>()) 3059901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (RecordTy->getDecl()->isAnonymousStructOrUnion()) 3069901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (!VisitCXXRecordDecl(cast<CXXRecordDecl>(RecordTy->getDecl()))) 3079901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor return 0; 3089901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor 309ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall // Do substitution on the type of the declaration 310a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = SemaRef.SubstType(D->getTypeSourceInfo(), 3110a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall TemplateArgs, 3120a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall D->getTypeSpecStartLoc(), 3130a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall D->getDeclName()); 3140a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall if (!DI) 3153d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor return 0; 3163d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor 317c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor if (DI->getType()->isFunctionType()) { 318c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor SemaRef.Diag(D->getLocation(), diag::err_variable_instantiates_to_function) 319c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor << D->isStaticDataMember() << DI->getType(); 320c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor return 0; 321c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor } 322c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor 323b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor // Build the instantiated declaration 3243d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor VarDecl *Var = VarDecl::Create(SemaRef.Context, Owner, 325ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getInnerLocStart(), 3263d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor D->getLocation(), D->getIdentifier(), 3270a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall DI->getType(), DI, 32816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClass(), 32916573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClassAsWritten()); 3303d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor Var->setThreadSpecified(D->isThreadSpecified()); 3313d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor Var->setCXXDirectInitializer(D->hasCXXDirectInitializer()); 332ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith Var->setCXXForRangeDecl(D->isCXXForRangeDecl()); 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 334b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Substitute the nested name specifier, if any. 335b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(D, Var)) 336b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return 0; 337b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 3381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we are instantiating a static data member defined 3397caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // out-of-line, the instantiation will have the same lexical 3407caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // context (which will be a namespace scope) as the template. 3417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (D->isOutOfLine()) 3427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Var->setLexicalDeclContext(D->getLexicalDeclContext()); 3431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34446460a68f6508775e98c19b4bb8454bb471aac24John McCall Var->setAccess(D->getAccess()); 345c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor 3466b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis if (!D->isStaticDataMember()) { 347c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor Var->setUsed(D->isUsed(false)); 3486b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis Var->setReferenced(D->isReferenced()); 3496b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis } 3504469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor 351390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: In theory, we could have a previous declaration for variables that 352390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // are not static data members. 3533d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor bool Redeclaration = false; 3546826314938f8510cd1a6b03b5d032592456ae27bJohn McCall // FIXME: having to fake up a LookupResult is dumb. 3556826314938f8510cd1a6b03b5d032592456ae27bJohn McCall LookupResult Previous(SemaRef, Var->getDeclName(), Var->getLocation(), 356449d0a829007ea654912098e6a73134a2c529d61Douglas Gregor Sema::LookupOrdinaryName, Sema::ForRedeclaration); 35760c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor if (D->isStaticDataMember()) 35860c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor SemaRef.LookupQualifiedName(Previous, Owner, false); 3596826314938f8510cd1a6b03b5d032592456ae27bJohn McCall SemaRef.CheckVariableDeclaration(Var, Previous, Redeclaration); 3601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3617caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (D->isOutOfLine()) { 362ea7b4880bc07cd99b3994c2a95d722a06ab56594Abramo Bagnara if (!D->isStaticDataMember()) 363ea7b4880bc07cd99b3994c2a95d722a06ab56594Abramo Bagnara D->getLexicalDeclContext()->addDecl(Var); 3647caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Owner->makeDeclVisibleInContext(Var); 3657caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } else { 3667caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Owner->addDecl(Var); 367f7d72f5a4a3f0e610d77c6779ca3c21920a14bc7Douglas Gregor if (Owner->isFunctionOrMethod()) 368f7d72f5a4a3f0e610d77c6779ca3c21920a14bc7Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Var); 3697caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 3701d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Var); 3718dd0c5626455cdf94280783e85e413eed6cbf3d9Fariborz Jahanian 372251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Link instantiations of static data members back to the template from 373251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // which they were instantiated. 374251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor if (Var->isStaticDataMember()) 375251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor SemaRef.Context.setInstantiatedFromStaticDataMember(Var, D, 376cf3293eaeb3853d12cff47e648bbe835004e929fDouglas Gregor TSK_ImplicitInstantiation); 377251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 37860c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor if (Var->getAnyInitializer()) { 37960c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor // We already have an initializer in the class. 38060c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor } else if (D->getInit()) { 3811f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (Var->isStaticDataMember() && !D->isOutOfLine()) 3821f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor SemaRef.PushExpressionEvaluationContext(Sema::Unevaluated); 3831f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor else 3841f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor SemaRef.PushExpressionEvaluationContext(Sema::PotentiallyEvaluated); 3851f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 3866b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // Instantiate the initializer. 3876b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation LParenLoc, RParenLoc; 388ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall ASTOwningVector<Expr*> InitArgs(SemaRef); 3896b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (!InstantiateInitializer(SemaRef, D->getInit(), TemplateArgs, LParenLoc, 390a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor InitArgs, RParenLoc)) { 39134b41d939a1328f484511c6002ba2456db879a29Richard Smith bool TypeMayContainAuto = true; 39207a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor // Attach the initializer to the declaration, if we have one. 39307a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor if (InitArgs.size() == 0) 39434b41d939a1328f484511c6002ba2456db879a29Richard Smith SemaRef.ActOnUninitializedDecl(Var, TypeMayContainAuto); 39507a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor else if (D->hasCXXDirectInitializer()) { 3966eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor // Add the direct initializer to the declaration. 397d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SemaRef.AddCXXDirectInitializerToDecl(Var, 3986b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor LParenLoc, 3996eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor move_arg(InitArgs), 40034b41d939a1328f484511c6002ba2456db879a29Richard Smith RParenLoc, 40134b41d939a1328f484511c6002ba2456db879a29Richard Smith TypeMayContainAuto); 40207a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor } else { 40307a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor assert(InitArgs.size() == 1); 4049ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Expr *Init = InitArgs.take()[0]; 40534b41d939a1328f484511c6002ba2456db879a29Richard Smith SemaRef.AddInitializerToDecl(Var, Init, false, TypeMayContainAuto); 40683ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor } 4076eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } else { 4086b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // FIXME: Not too happy about invalidating the declaration 4096b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // because of a bogus initializer. 4106b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Var->setInvalidDecl(); 4116eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 4126eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor 4131f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor SemaRef.PopExpressionEvaluationContext(); 414ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith } else if ((!Var->isStaticDataMember() || Var->isOutOfLine()) && 415ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith !Var->isCXXForRangeDecl()) 416d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SemaRef.ActOnUninitializedDecl(Var, false); 4173d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor 418e3499cae8e5323ac553ad56977bf1cd42b9a5a35Richard Smith // Diagnose unused local variables with dependent types, where the diagnostic 419e3499cae8e5323ac553ad56977bf1cd42b9a5a35Richard Smith // will have been deferred. 420e3499cae8e5323ac553ad56977bf1cd42b9a5a35Richard Smith if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed() && 421e3499cae8e5323ac553ad56977bf1cd42b9a5a35Richard Smith D->getType()->isDependentType()) 4225764f613e61cb3183f3d7ceeafd23396de96ed16Douglas Gregor SemaRef.DiagnoseUnusedDecl(Var); 423bbc6454bb98d6a6ecbaafa715222c5db834307f2Argyrios Kyrtzidis 4243d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor return Var; 4253d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor} 4263d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor 4276206d53f67613958ae1b023aba337ebb46f11a8bAbramo BagnaraDecl *TemplateDeclInstantiator::VisitAccessSpecDecl(AccessSpecDecl *D) { 4286206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara AccessSpecDecl* AD 4296206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara = AccessSpecDecl::Create(SemaRef.Context, D->getAccess(), Owner, 4306206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara D->getAccessSpecifierLoc(), D->getColonLoc()); 4316206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara Owner->addHiddenDecl(AD); 4326206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara return AD; 4336206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara} 4346206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara 4358dbc2694424b4e842b1d5ea39744a137b58600c3Douglas GregorDecl *TemplateDeclInstantiator::VisitFieldDecl(FieldDecl *D) { 4368dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor bool Invalid = false; 437a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = D->getTypeSourceInfo(); 438561f81243f665cf2001caadc45df505f826b72d6Douglas Gregor if (DI->getType()->isInstantiationDependentType() || 439836adf6771d5170d936599dfcce21687e37e9bbfDouglas Gregor DI->getType()->isVariablyModifiedType()) { 44007fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall DI = SemaRef.SubstType(DI, TemplateArgs, 44107fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall D->getLocation(), D->getDeclName()); 44207fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall if (!DI) { 443a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = D->getTypeSourceInfo(); 44407fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall Invalid = true; 44507fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall } else if (DI->getType()->isFunctionType()) { 4468dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // C++ [temp.arg.type]p3: 4478dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // If a declaration acquires a function type through a type 4488dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // dependent on a template-parameter and this causes a 4498dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // declaration that does not use the syntactic form of a 4508dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // function declarator to have function type, the program is 4518dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // ill-formed. 4528dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor SemaRef.Diag(D->getLocation(), diag::err_field_instantiates_to_function) 45307fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall << DI->getType(); 4548dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Invalid = true; 4558dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 456b4eeaff1595b7d0a8fbc2b3c8bec7dc63f48b7fdDouglas Gregor } else { 457b4eeaff1595b7d0a8fbc2b3c8bec7dc63f48b7fdDouglas Gregor SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); 4588dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 4598dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 4608dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Expr *BitWidth = D->getBitWidth(); 4618dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (Invalid) 4628dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor BitWidth = 0; 4638dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor else if (BitWidth) { 464ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // The bit-width expression is not potentially evaluated. 465f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); 4661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult InstantiatedBitWidth 468ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall = SemaRef.SubstExpr(BitWidth, TemplateArgs); 4698dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (InstantiatedBitWidth.isInvalid()) { 4708dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Invalid = true; 4718dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor BitWidth = 0; 4728dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } else 473e9146f2e9f1c4e281544e8c080934c72d41012caAnders Carlsson BitWidth = InstantiatedBitWidth.takeAs<Expr>(); 4748dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 4758dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 47607fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall FieldDecl *Field = SemaRef.CheckFieldDecl(D->getDeclName(), 47707fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall DI->getType(), DI, 4781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump cast<RecordDecl>(Owner), 4798dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->getLocation(), 4808dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->isMutable(), 4818dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor BitWidth, 4827a614d8380297fcd2bc23986241905d97222948cRichard Smith D->hasInClassInitializer(), 483ea218b8e8f9ba82d1c76bcb7e86d121a5f65ebedSteve Naroff D->getTypeSpecStartLoc(), 4848dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->getAccess(), 4858dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 0); 486663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor if (!Field) { 487663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor cast<Decl>(Owner)->setInvalidDecl(); 488f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson return 0; 489663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor } 4901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4911d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Field); 492d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson 493f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson if (Invalid) 494f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson Field->setInvalidDecl(); 4951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 496f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson if (!Field->getDeclName()) { 497f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson // Keep track of where this decl came from. 498f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson SemaRef.Context.setInstantiatedFromUnnamedFieldDecl(Field, D); 4999901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor } 5009901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (CXXRecordDecl *Parent= dyn_cast<CXXRecordDecl>(Field->getDeclContext())) { 5019901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (Parent->isAnonymousStructOrUnion() && 5027a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl Parent->getRedeclContext()->isFunctionOrMethod()) 5039901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Field); 5048dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 5051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 506f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson Field->setImplicit(D->isImplicit()); 50746460a68f6508775e98c19b4bb8454bb471aac24John McCall Field->setAccess(D->getAccess()); 508f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson Owner->addDecl(Field); 5098dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 5108dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Field; 5118dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 5128dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 51387c2e121cf0522fc266efe2922b58091cd2e0182Francois PichetDecl *TemplateDeclInstantiator::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 51487c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet NamedDecl **NamedChain = 51587c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet new (SemaRef.Context)NamedDecl*[D->getChainingSize()]; 51687c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 51787c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet int i = 0; 51887c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet for (IndirectFieldDecl::chain_iterator PI = 51987c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet D->chain_begin(), PE = D->chain_end(); 520b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor PI != PE; ++PI) { 521b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor NamedDecl *Next = SemaRef.FindInstantiatedDecl(D->getLocation(), *PI, 522b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor TemplateArgs); 523b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!Next) 524b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor return 0; 525b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor 526b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor NamedChain[i++] = Next; 527b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor } 52887c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 52940e17752086c2c497951d64f5ac6ab5039466113Francois Pichet QualType T = cast<FieldDecl>(NamedChain[i-1])->getType(); 53087c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet IndirectFieldDecl* IndirectField 53187c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet = IndirectFieldDecl::Create(SemaRef.Context, Owner, D->getLocation(), 53240e17752086c2c497951d64f5ac6ab5039466113Francois Pichet D->getIdentifier(), T, 53387c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet NamedChain, D->getChainingSize()); 53487c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 53587c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 53687c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet IndirectField->setImplicit(D->isImplicit()); 53787c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet IndirectField->setAccess(D->getAccess()); 53887c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet Owner->addDecl(IndirectField); 53987c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet return IndirectField; 54087c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet} 54187c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 54202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCallDecl *TemplateDeclInstantiator::VisitFriendDecl(FriendDecl *D) { 54302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall // Handle friend type expressions by simply substituting template 54406245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor // parameters into the pattern type and checking the result. 54532f2fb53d9d7c28c94d8569fd0fcf06cccee0c3dJohn McCall if (TypeSourceInfo *Ty = D->getFriendType()) { 5464fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TypeSourceInfo *InstTy; 5474fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // If this is an unsupported friend, don't bother substituting template 5484fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // arguments into it. The actual type referred to won't be used by any 5494fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // parts of Clang, and may not be valid for instantiating. Just use the 5504fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // same info for the instantiated friend. 5514fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth if (D->isUnsupportedFriend()) { 5524fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth InstTy = Ty; 5534fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } else { 5544fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth InstTy = SemaRef.SubstType(Ty, TemplateArgs, 5554fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth D->getLocation(), DeclarationName()); 5564fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 5574fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth if (!InstTy) 55806245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor return 0; 559fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall 56006245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor FriendDecl *FD = SemaRef.CheckFriendTypeDecl(D->getFriendLoc(), InstTy); 56106245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor if (!FD) 56206245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor return 0; 56306245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor 56406245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor FD->setAccess(AS_public); 5659a34edb710917798aa30263374f624f13b594605John McCall FD->setUnsupportedFriend(D->isUnsupportedFriend()); 56606245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor Owner->addDecl(FD); 56706245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor return FD; 56806245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor } 56906245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor 57006245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor NamedDecl *ND = D->getFriendDecl(); 57106245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor assert(ND && "friend decl must be a decl or a type!"); 57232f2fb53d9d7c28c94d8569fd0fcf06cccee0c3dJohn McCall 573af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // All of the Visit implementations for the various potential friend 574af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // declarations have to be carefully written to work for friend 575af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // objects, with the most important detail being that the target 576af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // decl should almost certainly not be placed in Owner. 577af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Decl *NewND = Visit(ND); 57806245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor if (!NewND) return 0; 5791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall FriendDecl *FD = 58106245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor FriendDecl::Create(SemaRef.Context, Owner, D->getLocation(), 58206245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor cast<NamedDecl>(NewND), D->getFriendLoc()); 5835fee110ac106370f75592df024001de73edced2aJohn McCall FD->setAccess(AS_public); 5849a34edb710917798aa30263374f624f13b594605John McCall FD->setUnsupportedFriend(D->isUnsupportedFriend()); 58502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall Owner->addDecl(FD); 58602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall return FD; 587fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall} 588fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall 5898dbc2694424b4e842b1d5ea39744a137b58600c3Douglas GregorDecl *TemplateDeclInstantiator::VisitStaticAssertDecl(StaticAssertDecl *D) { 5908dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Expr *AssertExpr = D->getAssertExpr(); 5911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 592ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // The expression in a static assertion is not potentially evaluated. 593f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); 5941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 59560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult InstantiatedAssertExpr 596ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall = SemaRef.SubstExpr(AssertExpr, TemplateArgs); 5978dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (InstantiatedAssertExpr.isInvalid()) 5988dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return 0; 5998dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 60060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Message(D->getMessage()); 6013fa5cae9b3812cab9fab6c042c3329bb70a3d046John McCall D->getMessage(); 602d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return SemaRef.ActOnStaticAssertDeclaration(D->getLocation(), 6039ae2f076ca5ab1feb3ba95629099ec2319833701John McCall InstantiatedAssertExpr.get(), 604a2026c96d3935e7909e049ad9096762844544ed6Abramo Bagnara Message.get(), 605a2026c96d3935e7909e049ad9096762844544ed6Abramo Bagnara D->getRParenLoc()); 6068dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 6078dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6088dbc2694424b4e842b1d5ea39744a137b58600c3Douglas GregorDecl *TemplateDeclInstantiator::VisitEnumDecl(EnumDecl *D) { 609ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara EnumDecl *Enum = EnumDecl::Create(SemaRef.Context, Owner, D->getLocStart(), 6108dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->getLocation(), D->getIdentifier(), 611a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara /*PrevDecl=*/0, D->isScoped(), 612a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara D->isScopedUsingClassTag(), D->isFixed()); 6131274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (D->isFixed()) { 6141274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (TypeSourceInfo* TI = D->getIntegerTypeSourceInfo()) { 6151274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor // If we have type source information for the underlying type, it means it 6161274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor // has been explicitly set by the user. Perform substitution on it before 6171274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor // moving on. 6181274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor SourceLocation UnderlyingLoc = TI->getTypeLoc().getBeginLoc(); 6191274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor Enum->setIntegerTypeSourceInfo(SemaRef.SubstType(TI, 6201274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor TemplateArgs, 6211274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor UnderlyingLoc, 6221274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor DeclarationName())); 6231274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor 6241274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (!Enum->getIntegerTypeSourceInfo()) 6251274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor Enum->setIntegerType(SemaRef.Context.IntTy); 6261274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor } 6271274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor else { 6281274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor assert(!D->getIntegerType()->isDependentType() 6291274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor && "Dependent type without type source info"); 6301274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor Enum->setIntegerType(D->getIntegerType()); 6311274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor } 6321274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor } 6331274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor 6345b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Enum); 6355b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall 6368dbc3c64965f99e48830885835b7d2fc26ec3cf5Douglas Gregor Enum->setInstantiationOfMemberEnum(D); 63706c0fecd197fef21e265a41bca8dc5022de1f864Douglas Gregor Enum->setAccess(D->getAccess()); 638b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(D, Enum)) return 0; 63917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Owner->addDecl(Enum); 6408dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Enum->startDefinition(); 6418dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 64296084f171f4824397dc48453146f0a9719cb9247Douglas Gregor if (D->getDeclContext()->isFunctionOrMethod()) 64396084f171f4824397dc48453146f0a9719cb9247Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Enum); 64496084f171f4824397dc48453146f0a9719cb9247Douglas Gregor 645d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall llvm::SmallVector<Decl*, 4> Enumerators; 6468dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6478dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EnumConstantDecl *LastEnumConst = 0; 64817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (EnumDecl::enumerator_iterator EC = D->enumerator_begin(), 64917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ECEnd = D->enumerator_end(); 6508dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EC != ECEnd; ++EC) { 6518dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // The specified value for the enumerator. 65260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Value = SemaRef.Owned((Expr *)0); 653ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor if (Expr *UninstValue = EC->getInitExpr()) { 654ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // The enumerator's value expression is not potentially evaluated. 6551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump EnterExpressionEvaluationContext Unevaluated(SemaRef, 656f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::Unevaluated); 6571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 658ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall Value = SemaRef.SubstExpr(UninstValue, TemplateArgs); 659ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor } 6608dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6618dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // Drop the initial value and continue. 6628dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor bool isInvalid = false; 6638dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (Value.isInvalid()) { 6648dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Value = SemaRef.Owned((Expr *)0); 6658dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor isInvalid = true; 6668dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6678dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump EnumConstantDecl *EnumConst 6698dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor = SemaRef.CheckEnumConstant(Enum, LastEnumConst, 6708dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EC->getLocation(), EC->getIdentifier(), 6719ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Value.get()); 6728dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6738dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (isInvalid) { 6748dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (EnumConst) 6758dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EnumConst->setInvalidDecl(); 6768dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Enum->setInvalidDecl(); 6778dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6788dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6798dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (EnumConst) { 6805b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, *EC, EnumConst); 6815b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall 6823b85ecf2049c8670eba30d0c06f28f64168af9b8John McCall EnumConst->setAccess(Enum->getAccess()); 68317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Enum->addDecl(EnumConst); 684d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Enumerators.push_back(EnumConst); 6858dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor LastEnumConst = EnumConst; 68696084f171f4824397dc48453146f0a9719cb9247Douglas Gregor 68796084f171f4824397dc48453146f0a9719cb9247Douglas Gregor if (D->getDeclContext()->isFunctionOrMethod()) { 68896084f171f4824397dc48453146f0a9719cb9247Douglas Gregor // If the enumeration is within a function or method, record the enum 68996084f171f4824397dc48453146f0a9719cb9247Douglas Gregor // constant as a local. 69096084f171f4824397dc48453146f0a9719cb9247Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(*EC, EnumConst); 69196084f171f4824397dc48453146f0a9719cb9247Douglas Gregor } 6928dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6938dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 695c6e35aae23bc3cea7daf5ee075fa695c01c0f66fMike Stump // FIXME: Fixup LBraceLoc and RBraceLoc 696fee13819693c8492f0c364bc704645e844ef737aEdward O'Callaghan // FIXME: Empty Scope and AttributeList (required to handle attribute packed). 697c6e35aae23bc3cea7daf5ee075fa695c01c0f66fMike Stump SemaRef.ActOnEnumBody(Enum->getLocation(), SourceLocation(), SourceLocation(), 698d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Enum, 699de7a0fcdf9f30cb5a97aab614f3975d93cd9926fEli Friedman Enumerators.data(), Enumerators.size(), 700fee13819693c8492f0c364bc704645e844ef737aEdward O'Callaghan 0, 0); 7018dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 7028dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Enum; 7038dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 7048dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 7056477b69cc93e0a0ff15036d60d604f3544da0f29Douglas GregorDecl *TemplateDeclInstantiator::VisitEnumConstantDecl(EnumConstantDecl *D) { 7066477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor assert(false && "EnumConstantDecls can only occur within EnumDecls."); 7076477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor return 0; 7086477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor} 7096477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor 710e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCallDecl *TemplateDeclInstantiator::VisitClassTemplateDecl(ClassTemplateDecl *D) { 71193ba8579c341d5329175f1413cdc3b35a36592d2John McCall bool isFriend = (D->getFriendObjectKind() != Decl::FOK_None); 71293ba8579c341d5329175f1413cdc3b35a36592d2John McCall 713550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Create a local instantiation scope for this class template, which 714550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // will contain the instantiations of the template parameters. 7152a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 716e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateParameterList *TempParams = D->getTemplateParameters(); 717ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 7181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!InstParams) 719d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return NULL; 720e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 721e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall CXXRecordDecl *Pattern = D->getTemplatedDecl(); 72293ba8579c341d5329175f1413cdc3b35a36592d2John McCall 72393ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Instantiate the qualifier. We have to do this first in case 72493ba8579c341d5329175f1413cdc3b35a36592d2John McCall // we're a friend declaration, because if we are then we need to put 72593ba8579c341d5329175f1413cdc3b35a36592d2John McCall // the new declaration in the appropriate context. 726c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc = Pattern->getQualifierLoc(); 727c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 728c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, 729c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor TemplateArgs); 730c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!QualifierLoc) 731c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return 0; 73293ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 73393ba8579c341d5329175f1413cdc3b35a36592d2John McCall 73493ba8579c341d5329175f1413cdc3b35a36592d2John McCall CXXRecordDecl *PrevDecl = 0; 73593ba8579c341d5329175f1413cdc3b35a36592d2John McCall ClassTemplateDecl *PrevClassTemplate = 0; 73693ba8579c341d5329175f1413cdc3b35a36592d2John McCall 73737574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (!isFriend && Pattern->getPreviousDeclaration()) { 73837574f55cd637340f651330f5cfda69742880d36Nick Lewycky DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); 73937574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (Found.first != Found.second) { 74037574f55cd637340f651330f5cfda69742880d36Nick Lewycky PrevClassTemplate = dyn_cast<ClassTemplateDecl>(*Found.first); 74137574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (PrevClassTemplate) 74237574f55cd637340f651330f5cfda69742880d36Nick Lewycky PrevDecl = PrevClassTemplate->getTemplatedDecl(); 74337574f55cd637340f651330f5cfda69742880d36Nick Lewycky } 74437574f55cd637340f651330f5cfda69742880d36Nick Lewycky } 74537574f55cd637340f651330f5cfda69742880d36Nick Lewycky 74693ba8579c341d5329175f1413cdc3b35a36592d2John McCall // If this isn't a friend, then it's a member template, in which 74793ba8579c341d5329175f1413cdc3b35a36592d2John McCall // case we just want to build the instantiation in the 74893ba8579c341d5329175f1413cdc3b35a36592d2John McCall // specialization. If it is a friend, we want to build it in 74993ba8579c341d5329175f1413cdc3b35a36592d2John McCall // the appropriate context. 75093ba8579c341d5329175f1413cdc3b35a36592d2John McCall DeclContext *DC = Owner; 75193ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (isFriend) { 752c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 75393ba8579c341d5329175f1413cdc3b35a36592d2John McCall CXXScopeSpec SS; 754c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor SS.Adopt(QualifierLoc); 75593ba8579c341d5329175f1413cdc3b35a36592d2John McCall DC = SemaRef.computeDeclContext(SS); 75693ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (!DC) return 0; 75793ba8579c341d5329175f1413cdc3b35a36592d2John McCall } else { 75893ba8579c341d5329175f1413cdc3b35a36592d2John McCall DC = SemaRef.FindInstantiatedContext(Pattern->getLocation(), 75993ba8579c341d5329175f1413cdc3b35a36592d2John McCall Pattern->getDeclContext(), 76093ba8579c341d5329175f1413cdc3b35a36592d2John McCall TemplateArgs); 76193ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 76293ba8579c341d5329175f1413cdc3b35a36592d2John McCall 76393ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Look for a previous declaration of the template in the owning 76493ba8579c341d5329175f1413cdc3b35a36592d2John McCall // context. 76593ba8579c341d5329175f1413cdc3b35a36592d2John McCall LookupResult R(SemaRef, Pattern->getDeclName(), Pattern->getLocation(), 76693ba8579c341d5329175f1413cdc3b35a36592d2John McCall Sema::LookupOrdinaryName, Sema::ForRedeclaration); 76793ba8579c341d5329175f1413cdc3b35a36592d2John McCall SemaRef.LookupQualifiedName(R, DC); 76893ba8579c341d5329175f1413cdc3b35a36592d2John McCall 76993ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (R.isSingleResult()) { 77093ba8579c341d5329175f1413cdc3b35a36592d2John McCall PrevClassTemplate = R.getAsSingle<ClassTemplateDecl>(); 77193ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (PrevClassTemplate) 77293ba8579c341d5329175f1413cdc3b35a36592d2John McCall PrevDecl = PrevClassTemplate->getTemplatedDecl(); 77393ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 77493ba8579c341d5329175f1413cdc3b35a36592d2John McCall 775c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!PrevClassTemplate && QualifierLoc) { 77693ba8579c341d5329175f1413cdc3b35a36592d2John McCall SemaRef.Diag(Pattern->getLocation(), diag::err_not_tag_in_scope) 7771eabb7d0c30f6a876b0fd03ad4656c096c26b8d0Douglas Gregor << D->getTemplatedDecl()->getTagKind() << Pattern->getDeclName() << DC 778c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor << QualifierLoc.getSourceRange(); 77993ba8579c341d5329175f1413cdc3b35a36592d2John McCall return 0; 78093ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 78193ba8579c341d5329175f1413cdc3b35a36592d2John McCall 782c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor bool AdoptedPreviousTemplateParams = false; 78393ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (PrevClassTemplate) { 784c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor bool Complain = true; 785c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor 786c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // HACK: libstdc++ 4.2.1 contains an ill-formed friend class 787c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // template for struct std::tr1::__detail::_Map_base, where the 788c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // template parameters of the friend declaration don't match the 789c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // template parameters of the original declaration. In this one 790c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // case, we don't complain about the ill-formed friend 791c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // declaration. 792c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (isFriend && Pattern->getIdentifier() && 793c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Pattern->getIdentifier()->isStr("_Map_base") && 794c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DC->isNamespace() && 795c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DC)->getIdentifier() && 796c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DC)->getIdentifier()->isStr("__detail")) { 797c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DeclContext *DCParent = DC->getParent(); 798c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (DCParent->isNamespace() && 799c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent)->getIdentifier() && 800c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent)->getIdentifier()->isStr("tr1")) { 801c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DeclContext *DCParent2 = DCParent->getParent(); 802c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (DCParent2->isNamespace() && 803c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent2)->getIdentifier() && 804c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent2)->getIdentifier()->isStr("std") && 805c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DCParent2->getParent()->isTranslationUnit()) 806c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Complain = false; 807c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor } 808c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor } 809c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor 81093ba8579c341d5329175f1413cdc3b35a36592d2John McCall TemplateParameterList *PrevParams 81193ba8579c341d5329175f1413cdc3b35a36592d2John McCall = PrevClassTemplate->getTemplateParameters(); 81293ba8579c341d5329175f1413cdc3b35a36592d2John McCall 81393ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Make sure the parameter lists match. 81493ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (!SemaRef.TemplateParameterListsAreEqual(InstParams, PrevParams, 815c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Complain, 816c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Sema::TPL_TemplateMatch)) { 817c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (Complain) 818c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor return 0; 819c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor 820c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor AdoptedPreviousTemplateParams = true; 821c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor InstParams = PrevParams; 822c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor } 82393ba8579c341d5329175f1413cdc3b35a36592d2John McCall 82493ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Do some additional validation, then merge default arguments 82593ba8579c341d5329175f1413cdc3b35a36592d2John McCall // from the existing declarations. 826c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (!AdoptedPreviousTemplateParams && 827c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor SemaRef.CheckTemplateParameterList(InstParams, PrevParams, 82893ba8579c341d5329175f1413cdc3b35a36592d2John McCall Sema::TPC_ClassTemplate)) 82993ba8579c341d5329175f1413cdc3b35a36592d2John McCall return 0; 83093ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 83193ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 83293ba8579c341d5329175f1413cdc3b35a36592d2John McCall 833e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall CXXRecordDecl *RecordInst 83493ba8579c341d5329175f1413cdc3b35a36592d2John McCall = CXXRecordDecl::Create(SemaRef.Context, Pattern->getTagKind(), DC, 835ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara Pattern->getLocStart(), Pattern->getLocation(), 836ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara Pattern->getIdentifier(), PrevDecl, 837f0510d49a6985e9284d30cfc36a0df2a6292a638Douglas Gregor /*DelayTypeCreation=*/true); 838e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 839c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) 840c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor RecordInst->setQualifierInfo(QualifierLoc); 841b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 842e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall ClassTemplateDecl *Inst 84393ba8579c341d5329175f1413cdc3b35a36592d2John McCall = ClassTemplateDecl::Create(SemaRef.Context, DC, D->getLocation(), 84493ba8579c341d5329175f1413cdc3b35a36592d2John McCall D->getIdentifier(), InstParams, RecordInst, 84593ba8579c341d5329175f1413cdc3b35a36592d2John McCall PrevClassTemplate); 846e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall RecordInst->setDescribedClassTemplate(Inst); 847ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall 84893ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (isFriend) { 849ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall if (PrevClassTemplate) 850ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall Inst->setAccess(PrevClassTemplate->getAccess()); 851ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall else 852ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall Inst->setAccess(D->getAccess()); 853ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall 85493ba8579c341d5329175f1413cdc3b35a36592d2John McCall Inst->setObjectOfFriendDecl(PrevClassTemplate != 0); 85593ba8579c341d5329175f1413cdc3b35a36592d2John McCall // TODO: do we want to track the instantiation progeny of this 85693ba8579c341d5329175f1413cdc3b35a36592d2John McCall // friend target decl? 85793ba8579c341d5329175f1413cdc3b35a36592d2John McCall } else { 858e8c01bdb56549adcecd71ce39160eea54b2c51c8Douglas Gregor Inst->setAccess(D->getAccess()); 85937574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (!PrevClassTemplate) 86037574f55cd637340f651330f5cfda69742880d36Nick Lewycky Inst->setInstantiatedFromMemberTemplate(D); 86193ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 862f0510d49a6985e9284d30cfc36a0df2a6292a638Douglas Gregor 863f0510d49a6985e9284d30cfc36a0df2a6292a638Douglas Gregor // Trigger creation of the type for the instantiation. 8643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall SemaRef.Context.getInjectedClassNameType(RecordInst, 86524bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor Inst->getInjectedClassNameSpecialization()); 866ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall 867259571e27e513cfaf691cc7447e09b31a47d5438Douglas Gregor // Finish handling of friends. 86893ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (isFriend) { 86993ba8579c341d5329175f1413cdc3b35a36592d2John McCall DC->makeDeclVisibleInContext(Inst, /*Recoverable*/ false); 870e8c01bdb56549adcecd71ce39160eea54b2c51c8Douglas Gregor return Inst; 871259571e27e513cfaf691cc7447e09b31a47d5438Douglas Gregor } 872e8c01bdb56549adcecd71ce39160eea54b2c51c8Douglas Gregor 873e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall Owner->addDecl(Inst); 874d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor 875d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor if (!PrevClassTemplate) { 876d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor // Queue up any out-of-line partial specializations of this member 877d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor // class template; the client will force their instantiation once 878d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor // the enclosing class has been instantiated. 879d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor llvm::SmallVector<ClassTemplatePartialSpecializationDecl *, 4> PartialSpecs; 880d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor D->getPartialSpecializations(PartialSpecs); 881d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor for (unsigned I = 0, N = PartialSpecs.size(); I != N; ++I) 882d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor if (PartialSpecs[I]->isOutOfLine()) 883d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor OutOfLinePartialSpecs.push_back(std::make_pair(Inst, PartialSpecs[I])); 884d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor } 885d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor 886e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return Inst; 887e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall} 888e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 889d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorDecl * 8907974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas GregorTemplateDeclInstantiator::VisitClassTemplatePartialSpecializationDecl( 8917974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas Gregor ClassTemplatePartialSpecializationDecl *D) { 892ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateDecl *ClassTemplate = D->getSpecializedTemplate(); 893ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 894ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Lookup the already-instantiated declaration in the instantiation 895ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // of the class template and return that. 896ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor DeclContext::lookup_result Found 897ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = Owner->lookup(ClassTemplate->getDeclName()); 898ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (Found.first == Found.second) 899ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return 0; 900ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 901ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateDecl *InstClassTemplate 902ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = dyn_cast<ClassTemplateDecl>(*Found.first); 903ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (!InstClassTemplate) 904ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return 0; 905ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 906d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor if (ClassTemplatePartialSpecializationDecl *Result 907d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor = InstClassTemplate->findPartialSpecInstantiatedFromMember(D)) 908d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return Result; 909d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor 910d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return InstantiateClassTemplatePartialSpecialization(InstClassTemplate, D); 9117974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas Gregor} 9127974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas Gregor 9137974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas GregorDecl * 914d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorTemplateDeclInstantiator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 915550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Create a local instantiation scope for this function template, which 916550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // will contain the instantiations of the template parameters and then get 917550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // merged with the local instantiation scope for the function template 918550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // itself. 9192a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 920895162da2d52f4243f61081d7436de66af4503fcDouglas Gregor 921d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParameterList *TempParams = D->getTemplateParameters(); 922d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 9231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!InstParams) 924d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return NULL; 925ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 926a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor FunctionDecl *Instantiated = 0; 927a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor if (CXXMethodDecl *DMethod = dyn_cast<CXXMethodDecl>(D->getTemplatedDecl())) 928a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Instantiated = cast_or_null<FunctionDecl>(VisitCXXMethodDecl(DMethod, 929a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor InstParams)); 930a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor else 931a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Instantiated = cast_or_null<FunctionDecl>(VisitFunctionDecl( 932a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor D->getTemplatedDecl(), 933a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor InstParams)); 934a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 935a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor if (!Instantiated) 936d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return 0; 937d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor 93846460a68f6508775e98c19b4bb8454bb471aac24John McCall Instantiated->setAccess(D->getAccess()); 93946460a68f6508775e98c19b4bb8454bb471aac24John McCall 9401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Link the instantiated function template declaration to the function 941d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // template from which it was instantiated. 94237d68185088947322a97eabdc1c0714b0debd929Douglas Gregor FunctionTemplateDecl *InstTemplate 943a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor = Instantiated->getDescribedFunctionTemplate(); 94437d68185088947322a97eabdc1c0714b0debd929Douglas Gregor InstTemplate->setAccess(D->getAccess()); 945a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor assert(InstTemplate && 946a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor "VisitFunctionDecl/CXXMethodDecl didn't create a template!"); 947e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall 948b1a56e767cfb645fcb25027ab728dd5824d92615John McCall bool isFriend = (InstTemplate->getFriendObjectKind() != Decl::FOK_None); 949b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 950e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall // Link the instantiation back to the pattern *unless* this is a 951e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall // non-definition friend declaration. 952e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall if (!InstTemplate->getInstantiatedFromMemberTemplate() && 953b1a56e767cfb645fcb25027ab728dd5824d92615John McCall !(isFriend && !D->getTemplatedDecl()->isThisDeclarationADefinition())) 954a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor InstTemplate->setInstantiatedFromMemberTemplate(D); 955a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 956b1a56e767cfb645fcb25027ab728dd5824d92615John McCall // Make declarations visible in the appropriate context. 957b1a56e767cfb645fcb25027ab728dd5824d92615John McCall if (!isFriend) 958a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Owner->addDecl(InstTemplate); 959b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 960d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return InstTemplate; 961d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor} 962d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor 963d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas GregorDecl *TemplateDeclInstantiator::VisitCXXRecordDecl(CXXRecordDecl *D) { 964d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor CXXRecordDecl *PrevDecl = 0; 965d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (D->isInjectedClassName()) 966d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor PrevDecl = cast<CXXRecordDecl>(Owner); 9676c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall else if (D->getPreviousDeclaration()) { 9687c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor NamedDecl *Prev = SemaRef.FindInstantiatedDecl(D->getLocation(), 9697c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor D->getPreviousDeclaration(), 9706c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall TemplateArgs); 9716c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall if (!Prev) return 0; 9726c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall PrevDecl = cast<CXXRecordDecl>(Prev); 9736c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall } 974d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor 975d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor CXXRecordDecl *Record 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = CXXRecordDecl::Create(SemaRef.Context, D->getTagKind(), Owner, 977ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara D->getLocStart(), D->getLocation(), 978ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara D->getIdentifier(), PrevDecl); 979b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 980b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Substitute the nested name specifier, if any. 981b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(D, Record)) 982b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return 0; 983b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 984d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor Record->setImplicit(D->isImplicit()); 985eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman // FIXME: Check against AS_none is an ugly hack to work around the issue that 986eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman // the tag decls introduced by friend class declarations don't have an access 987eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman // specifier. Remove once this area of the code gets sorted out. 988eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman if (D->getAccess() != AS_none) 989eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman Record->setAccess(D->getAccess()); 990d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (!D->isInjectedClassName()) 991f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor Record->setInstantiationOfMemberClass(D, TSK_ImplicitInstantiation); 992d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor 99302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall // If the original function was part of a friend declaration, 99402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall // inherit its namespace state. 99502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall if (Decl::FriendObjectKind FOK = D->getFriendObjectKind()) 99602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall Record->setObjectOfFriendDecl(FOK == Decl::FOK_Declared); 99702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 9989901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor // Make sure that anonymous structs and unions are recorded. 9999901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (D->isAnonymousStructOrUnion()) { 10009901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor Record->setAnonymousStructOrUnion(true); 10017a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (Record->getDeclContext()->getRedeclContext()->isFunctionOrMethod()) 10029901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Record); 10039901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor } 1004d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 100517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Owner->addDecl(Record); 1006d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor return Record; 1007d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor} 1008d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor 100902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// Normal class members are of more specific types and therefore 101002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// don't make it here. This function serves two purposes: 101102cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// 1) instantiating function templates 101202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// 2) substituting friend declarations 101302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// FIXME: preserve function definitions in case #2 10147557a1348d2821dce126a778aa7acd7a00b814fdDouglas GregorDecl *TemplateDeclInstantiator::VisitFunctionDecl(FunctionDecl *D, 1015a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor TemplateParameterList *TemplateParams) { 1016127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // Check whether there is already a function template specialization for 1017127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // this declaration. 1018127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); 1019127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor void *InsertPos = 0; 1020b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate && !TemplateParams) { 102124bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 102224bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10242c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis FunctionDecl *SpecFunc 10252c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, 10262c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis InsertPos); 10271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1028127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // If we already have a function template specialization, return it. 10292c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis if (SpecFunc) 10302c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis return SpecFunc; 1031127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor } 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1033b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall bool isFriend; 1034b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate) 1035b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); 1036b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall else 1037b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (D->getFriendObjectKind() != Decl::FOK_None); 1038b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 103979c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor bool MergeWithParentScope = (TemplateParams != 0) || 1040b212d9a8e10308cde5b7a1ce07bd59d8df14fa06Douglas Gregor Owner->isFunctionOrMethod() || 104179c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor !(isa<Decl>(Owner) && 104279c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); 10432a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); 10441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1045e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor llvm::SmallVector<ParmVarDecl *, 4> Params; 104621ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TypeSourceInfo *TInfo = D->getTypeSourceInfo(); 104721ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TInfo = SubstFunctionType(D, Params); 104821ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall if (!TInfo) 10492dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return 0; 105021ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall QualType T = TInfo->getType(); 1051fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall 1052c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); 1053c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 1054c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, 1055c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor TemplateArgs); 1056c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!QualifierLoc) 1057c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return 0; 1058d325daa506338ab86f9dd468b48fd010673f49a6John McCall } 1059d325daa506338ab86f9dd468b48fd010673f49a6John McCall 106068b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall // If we're instantiating a local function declaration, put the result 106168b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall // in the owner; otherwise we need to find the instantiated context. 106268b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall DeclContext *DC; 106368b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall if (D->getDeclContext()->isFunctionOrMethod()) 106468b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall DC = Owner; 1065c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor else if (isFriend && QualifierLoc) { 1066d325daa506338ab86f9dd468b48fd010673f49a6John McCall CXXScopeSpec SS; 1067c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor SS.Adopt(QualifierLoc); 1068d325daa506338ab86f9dd468b48fd010673f49a6John McCall DC = SemaRef.computeDeclContext(SS); 1069d325daa506338ab86f9dd468b48fd010673f49a6John McCall if (!DC) return 0; 1070d325daa506338ab86f9dd468b48fd010673f49a6John McCall } else { 10717c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor DC = SemaRef.FindInstantiatedContext(D->getLocation(), D->getDeclContext(), 10727c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor TemplateArgs); 1073d325daa506338ab86f9dd468b48fd010673f49a6John McCall } 107468b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall 107502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall FunctionDecl *Function = 1076ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara FunctionDecl::Create(SemaRef.Context, DC, D->getInnerLocStart(), 1077ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getLocation(), D->getDeclName(), T, TInfo, 107816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClass(), D->getStorageClassAsWritten(), 10790130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor D->isInlineSpecified(), D->hasWrittenPrototype()); 1080b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1081c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) 1082c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor Function->setQualifierInfo(QualifierLoc); 1083b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1084b1a56e767cfb645fcb25027ab728dd5824d92615John McCall DeclContext *LexicalDC = Owner; 1085b1a56e767cfb645fcb25027ab728dd5824d92615John McCall if (!isFriend && D->isOutOfLine()) { 1086b1a56e767cfb645fcb25027ab728dd5824d92615John McCall assert(D->getDeclContext()->isFileContext()); 1087b1a56e767cfb645fcb25027ab728dd5824d92615John McCall LexicalDC = D->getDeclContext(); 1088b1a56e767cfb645fcb25027ab728dd5824d92615John McCall } 1089b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 1090b1a56e767cfb645fcb25027ab728dd5824d92615John McCall Function->setLexicalDeclContext(LexicalDC); 10911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1092e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor // Attach the parameters 10931d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor if (isa<FunctionProtoType>(Function->getType())) { 10941d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor // Adopt the already-instantiated parameters into our own context. 10951d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor for (unsigned P = 0; P < Params.size(); ++P) 10961d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor if (Params[P]) 10971d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor Params[P]->setOwningFunction(Function); 10981d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor } else { 10991d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor // Since we were instantiated via a typedef of a function type, create 11001d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor // new parameters. 11011d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor const FunctionProtoType *Proto 11021d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor = Function->getType()->getAs<FunctionProtoType>(); 11031d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor assert(Proto && "No function prototype in template instantiation?"); 11041d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor for (FunctionProtoType::arg_type_iterator AI = Proto->arg_type_begin(), 11051d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor AE = Proto->arg_type_end(); AI != AE; ++AI) { 11061d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor ParmVarDecl *Param 11071d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor = SemaRef.BuildParmVarDeclForTypedef(Function, Function->getLocation(), 11081d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor *AI); 11091d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor Param->setScopeInfo(0, Params.size()); 11101d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor Params.push_back(Param); 11111d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor } 11121d441ee69aaf3b3afa4521d05df934c5c7ea5f62Douglas Gregor } 1113838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Function->setParams(Params.data(), Params.size()); 111402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 1115ac7c2c8a9d47df7d652364af3043c41816a18fa4Douglas Gregor SourceLocation InstantiateAtPOI; 1116a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor if (TemplateParams) { 1117a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // Our resulting instantiation is actually a function template, since we 1118a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // are substituting only the outer template parameters. For example, given 1119a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // 1120a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // template<typename T> 1121a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // struct X { 1122a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // template<typename U> friend void f(T, U); 1123a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // }; 1124a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // 1125a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // X<int> x; 1126a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // 1127a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // We are instantiating the friend function template "f" within X<int>, 1128a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // which means substituting int for T, but leaving "f" as a friend function 1129a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // template. 1130a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // Build the function template itself. 1131d325daa506338ab86f9dd468b48fd010673f49a6John McCall FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, DC, 1132a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Function->getLocation(), 1133a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Function->getDeclName(), 1134a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor TemplateParams, Function); 1135a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Function->setDescribedFunctionTemplate(FunctionTemplate); 1136b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 1137b1a56e767cfb645fcb25027ab728dd5824d92615John McCall FunctionTemplate->setLexicalDeclContext(LexicalDC); 1138d325daa506338ab86f9dd468b48fd010673f49a6John McCall 1139d325daa506338ab86f9dd468b48fd010673f49a6John McCall if (isFriend && D->isThisDeclarationADefinition()) { 1140d325daa506338ab86f9dd468b48fd010673f49a6John McCall // TODO: should we remember this connection regardless of whether 1141d325daa506338ab86f9dd468b48fd010673f49a6John McCall // the friend declaration provided a body? 1142d325daa506338ab86f9dd468b48fd010673f49a6John McCall FunctionTemplate->setInstantiatedFromMemberTemplate( 1143d325daa506338ab86f9dd468b48fd010673f49a6John McCall D->getDescribedFunctionTemplate()); 1144d325daa506338ab86f9dd468b48fd010673f49a6John McCall } 114566724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor } else if (FunctionTemplate) { 114666724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor // Record this function template specialization. 114724bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 114824bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 1149838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Function->setFunctionTemplateSpecialization(FunctionTemplate, 1150910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor TemplateArgumentList::CreateCopy(SemaRef.Context, 115124bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor Innermost.first, 115224bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor Innermost.second), 115366724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor InsertPos); 1154d325daa506338ab86f9dd468b48fd010673f49a6John McCall } else if (isFriend && D->isThisDeclarationADefinition()) { 1155d325daa506338ab86f9dd468b48fd010673f49a6John McCall // TODO: should we remember this connection regardless of whether 1156d325daa506338ab86f9dd468b48fd010673f49a6John McCall // the friend declaration provided a body? 1157d325daa506338ab86f9dd468b48fd010673f49a6John McCall Function->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); 115802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall } 1159a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 1160e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (InitFunctionInstantiation(Function, D)) 1161e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor Function->setInvalidDecl(); 11621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1163e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor bool Redeclaration = false; 1164af2094e7cecadf36667deb61a83587ffdd979bd3John McCall bool isExplicitSpecialization = false; 1165a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 11666826314938f8510cd1a6b03b5d032592456ae27bJohn McCall LookupResult Previous(SemaRef, Function->getDeclName(), SourceLocation(), 11676826314938f8510cd1a6b03b5d032592456ae27bJohn McCall Sema::LookupOrdinaryName, Sema::ForRedeclaration); 11686826314938f8510cd1a6b03b5d032592456ae27bJohn McCall 1169af2094e7cecadf36667deb61a83587ffdd979bd3John McCall if (DependentFunctionTemplateSpecializationInfo *Info 1170af2094e7cecadf36667deb61a83587ffdd979bd3John McCall = D->getDependentSpecializationInfo()) { 1171af2094e7cecadf36667deb61a83587ffdd979bd3John McCall assert(isFriend && "non-friend has dependent specialization info?"); 1172af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1173af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // This needs to be set now for future sanity. 1174af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Function->setObjectOfFriendDecl(/*HasPrevious*/ true); 1175af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1176af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // Instantiate the explicit template arguments. 1177af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateArgumentListInfo ExplicitArgs(Info->getLAngleLoc(), 1178af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Info->getRAngleLoc()); 1179e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor if (SemaRef.Subst(Info->getTemplateArgs(), Info->getNumTemplateArgs(), 1180e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor ExplicitArgs, TemplateArgs)) 1181e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor return 0; 1182af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1183af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // Map the candidate templates to their instantiations. 1184af2094e7cecadf36667deb61a83587ffdd979bd3John McCall for (unsigned I = 0, E = Info->getNumTemplates(); I != E; ++I) { 1185af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Decl *Temp = SemaRef.FindInstantiatedDecl(D->getLocation(), 1186af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Info->getTemplate(I), 1187af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateArgs); 1188af2094e7cecadf36667deb61a83587ffdd979bd3John McCall if (!Temp) return 0; 1189af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1190af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Previous.addDecl(cast<FunctionTemplateDecl>(Temp)); 1191af2094e7cecadf36667deb61a83587ffdd979bd3John McCall } 1192af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1193af2094e7cecadf36667deb61a83587ffdd979bd3John McCall if (SemaRef.CheckFunctionTemplateSpecialization(Function, 1194af2094e7cecadf36667deb61a83587ffdd979bd3John McCall &ExplicitArgs, 1195af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Previous)) 1196af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Function->setInvalidDecl(); 1197af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1198af2094e7cecadf36667deb61a83587ffdd979bd3John McCall isExplicitSpecialization = true; 1199af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1200af2094e7cecadf36667deb61a83587ffdd979bd3John McCall } else if (TemplateParams || !FunctionTemplate) { 1201a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // Look only into the namespace where the friend would be declared to 1202a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // find a previous declaration. This is the innermost enclosing namespace, 1203a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // as described in ActOnFriendFunctionDecl. 12046826314938f8510cd1a6b03b5d032592456ae27bJohn McCall SemaRef.LookupQualifiedName(Previous, DC); 1205a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 1206a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // In C++, the previous declaration we find might be a tag type 1207a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // (class or enum). In this case, the new declaration will hide the 1208a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // tag type. Note that this does does not apply if we're declaring a 1209a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // typedef (C++ [dcl.typedef]p4). 12106826314938f8510cd1a6b03b5d032592456ae27bJohn McCall if (Previous.isSingleTagDecl()) 12116826314938f8510cd1a6b03b5d032592456ae27bJohn McCall Previous.clear(); 1212a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor } 1213a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 12149f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.CheckFunctionDeclaration(/*Scope*/ 0, Function, Previous, 1215c80e8115278ba1537c8b517a083ecbd0a018b579Peter Collingbourne isExplicitSpecialization, Redeclaration); 1216e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor 121776d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall NamedDecl *PrincipalDecl = (TemplateParams 121876d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall ? cast<NamedDecl>(FunctionTemplate) 121976d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall : Function); 122076d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 1221a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // If the original function was part of a friend declaration, 1222a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // inherit its namespace state and add it to the owner. 1223d325daa506338ab86f9dd468b48fd010673f49a6John McCall if (isFriend) { 12246826314938f8510cd1a6b03b5d032592456ae27bJohn McCall NamedDecl *PrevDecl; 122576d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall if (TemplateParams) 1226a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor PrevDecl = FunctionTemplate->getPreviousDeclaration(); 122776d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall else 1228a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor PrevDecl = Function->getPreviousDeclaration(); 122976d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 123076d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall PrincipalDecl->setObjectOfFriendDecl(PrevDecl != 0); 123176d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall DC->makeDeclVisibleInContext(PrincipalDecl, /*Recoverable=*/ false); 1232ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif 123377535dfde258765c056ef4c6786ef56cc48f0c76Gabor Greif bool queuedInstantiation = false; 1234ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif 1235238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor if (!SemaRef.getLangOptions().CPlusPlus0x && 1236238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor D->isThisDeclarationADefinition()) { 1237238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor // Check for a function body. 1238238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor const FunctionDecl *Definition = 0; 123910620eb5164e31208fcbf0437cd79ae535ed0559Sean Hunt if (Function->isDefined(Definition) && 1240238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor Definition->getTemplateSpecializationKind() == TSK_Undeclared) { 1241238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor SemaRef.Diag(Function->getLocation(), diag::err_redefinition) 1242238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor << Function->getDeclName(); 1243238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor SemaRef.Diag(Definition->getLocation(), diag::note_previous_definition); 1244238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor Function->setInvalidDecl(); 1245238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1246238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor // Check for redefinitions due to other instantiations of this or 1247238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor // a similar friend function. 1248238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor else for (FunctionDecl::redecl_iterator R = Function->redecls_begin(), 1249238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor REnd = Function->redecls_end(); 1250238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor R != REnd; ++R) { 125113a8affbb87cdb869adabe2a6e5998559f2598c4Gabor Greif if (*R == Function) 125213a8affbb87cdb869adabe2a6e5998559f2598c4Gabor Greif continue; 1253ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif switch (R->getFriendObjectKind()) { 1254ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif case Decl::FOK_None: 1255ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif if (!queuedInstantiation && R->isUsed(false)) { 1256ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif if (MemberSpecializationInfo *MSInfo 1257ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif = Function->getMemberSpecializationInfo()) { 1258ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif if (MSInfo->getPointOfInstantiation().isInvalid()) { 1259ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif SourceLocation Loc = R->getLocation(); // FIXME 1260ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif MSInfo->setPointOfInstantiation(Loc); 1261ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif SemaRef.PendingLocalImplicitInstantiations.push_back( 1262ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif std::make_pair(Function, Loc)); 1263ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif queuedInstantiation = true; 1264ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif } 1265ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif } 1266ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif } 1267ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif break; 1268ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif default: 1269238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor if (const FunctionDecl *RPattern 12706a557d8f6b3d7a747a0b57960d4b86f05ba2e53cGabor Greif = R->getTemplateInstantiationPattern()) 127110620eb5164e31208fcbf0437cd79ae535ed0559Sean Hunt if (RPattern->isDefined(RPattern)) { 1272238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor SemaRef.Diag(Function->getLocation(), diag::err_redefinition) 1273238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor << Function->getDeclName(); 12746a557d8f6b3d7a747a0b57960d4b86f05ba2e53cGabor Greif SemaRef.Diag(R->getLocation(), diag::note_previous_definition); 1275238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor Function->setInvalidDecl(); 1276238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor break; 1277238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1278238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1279238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1280238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1281a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor } 1282a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 128376d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall if (Function->isOverloadedOperator() && !DC->isRecord() && 128476d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall PrincipalDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) 128576d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall PrincipalDecl->setNonMemberOperator(); 128676d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 1287eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt assert(!D->isDefaulted() && "only methods should be defaulted"); 1288e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return Function; 1289e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor} 12902dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1291d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorDecl * 1292d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorTemplateDeclInstantiator::VisitCXXMethodDecl(CXXMethodDecl *D, 1293d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParameterList *TemplateParams) { 12946b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); 12956b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor void *InsertPos = 0; 1296d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor if (FunctionTemplate && !TemplateParams) { 12971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We are creating a function template specialization from a function 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // template. Check whether there is already a function template 1299d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // specialization for this particular set of template arguments. 130024bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 130124bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13032c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis FunctionDecl *SpecFunc 13042c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, 13052c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis InsertPos); 13061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13076b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor // If we already have a function template specialization, return it. 13082c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis if (SpecFunc) 13092c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis return SpecFunc; 13106b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor } 13116b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor 1312b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall bool isFriend; 1313b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate) 1314b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); 1315b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall else 1316b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (D->getFriendObjectKind() != Decl::FOK_None); 1317b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 131879c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor bool MergeWithParentScope = (TemplateParams != 0) || 131979c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor !(isa<Decl>(Owner) && 132079c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); 13212a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); 132248dd19b19ddb9e105f8cf0bf6f0732ca4e6a385bDouglas Gregor 13234eab39f0745fb1949dbb40c4145771b927888242John McCall // Instantiate enclosing template arguments for friends. 13244eab39f0745fb1949dbb40c4145771b927888242John McCall llvm::SmallVector<TemplateParameterList *, 4> TempParamLists; 13254eab39f0745fb1949dbb40c4145771b927888242John McCall unsigned NumTempParamLists = 0; 13264eab39f0745fb1949dbb40c4145771b927888242John McCall if (isFriend && (NumTempParamLists = D->getNumTemplateParameterLists())) { 13274eab39f0745fb1949dbb40c4145771b927888242John McCall TempParamLists.set_size(NumTempParamLists); 13284eab39f0745fb1949dbb40c4145771b927888242John McCall for (unsigned I = 0; I != NumTempParamLists; ++I) { 13294eab39f0745fb1949dbb40c4145771b927888242John McCall TemplateParameterList *TempParams = D->getTemplateParameterList(I); 13304eab39f0745fb1949dbb40c4145771b927888242John McCall TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 13314eab39f0745fb1949dbb40c4145771b927888242John McCall if (!InstParams) 13324eab39f0745fb1949dbb40c4145771b927888242John McCall return NULL; 13334eab39f0745fb1949dbb40c4145771b927888242John McCall TempParamLists[I] = InstParams; 13344eab39f0745fb1949dbb40c4145771b927888242John McCall } 13354eab39f0745fb1949dbb40c4145771b927888242John McCall } 13364eab39f0745fb1949dbb40c4145771b927888242John McCall 13370ca20ac8cea99c43d89510f29cf3dc876f9c9111Douglas Gregor llvm::SmallVector<ParmVarDecl *, 4> Params; 133821ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TypeSourceInfo *TInfo = D->getTypeSourceInfo(); 133921ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TInfo = SubstFunctionType(D, Params); 134021ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall if (!TInfo) 13412dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return 0; 134221ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall QualType T = TInfo->getType(); 13432dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1344723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara // \brief If the type of this function, after ignoring parentheses, 1345723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara // is not *directly* a function type, then we're instantiating a function 1346723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara // that was declared via a typedef, e.g., 13475f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // 13485f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // typedef int functype(int, int); 13495f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // functype func; 13505f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // 13515f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // In this case, we'll just go instantiate the ParmVarDecls that we 13525f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // synthesized in the method declaration. 1353723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara if (!isa<FunctionProtoType>(T.IgnoreParens())) { 13545f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor assert(!Params.size() && "Instantiating type could not yield parameters"); 135512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor llvm::SmallVector<QualType, 4> ParamTypes; 135612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor if (SemaRef.SubstParmTypes(D->getLocation(), D->param_begin(), 135712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor D->getNumParams(), TemplateArgs, ParamTypes, 135812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor &Params)) 135912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor return 0; 13605f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor } 13615f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor 1362c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); 1363c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 1364c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, 1365b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall TemplateArgs); 1366c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!QualifierLoc) 1367c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return 0; 1368b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1369b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 1370b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall DeclContext *DC = Owner; 1371b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) { 1372c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 1373b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall CXXScopeSpec SS; 1374c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor SS.Adopt(QualifierLoc); 1375b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall DC = SemaRef.computeDeclContext(SS); 1376c54d688c604d28dcb9ab8f92047837c10c8f9c61John McCall 1377c54d688c604d28dcb9ab8f92047837c10c8f9c61John McCall if (DC && SemaRef.RequireCompleteDeclContext(SS, DC)) 1378c54d688c604d28dcb9ab8f92047837c10c8f9c61John McCall return 0; 1379b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else { 1380b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall DC = SemaRef.FindInstantiatedContext(D->getLocation(), 1381b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall D->getDeclContext(), 1382b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall TemplateArgs); 1383b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1384b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (!DC) return 0; 1385b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1386b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 13872dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Build the instantiated method declaration. 1388b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall CXXRecordDecl *Record = cast<CXXRecordDecl>(DC); 1389dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor CXXMethodDecl *Method = 0; 13901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1391ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation StartLoc = D->getInnerLocStart(); 13922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo NameInfo 13932577743c5650c646fb705df01403707e94f2df04Abramo Bagnara = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); 139417e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) { 13951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Method = CXXConstructorDecl::Create(SemaRef.Context, Record, 1396ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 13971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Constructor->isExplicit(), 139816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor Constructor->isInlineSpecified(), 13995f802e51406664ca9b6e0d57fc7ce37ea97a1c65Sean Hunt false); 140017e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor } else if (CXXDestructorDecl *Destructor = dyn_cast<CXXDestructorDecl>(D)) { 140117e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor Method = CXXDestructorDecl::Create(SemaRef.Context, Record, 1402ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 14032577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Destructor->isInlineSpecified(), 140416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor false); 140565ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor } else if (CXXConversionDecl *Conversion = dyn_cast<CXXConversionDecl>(D)) { 140665ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor Method = CXXConversionDecl::Create(SemaRef.Context, Record, 1407ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 14080130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor Conversion->isInlineSpecified(), 1409f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor Conversion->isExplicit(), 1410f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor Conversion->getLocEnd()); 1411dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor } else { 14122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Method = CXXMethodDecl::Create(SemaRef.Context, Record, 1413ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 141416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->isStatic(), 141516573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClassAsWritten(), 1416f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor D->isInlineSpecified(), 1417f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor D->getLocEnd()); 1418dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor } 14196b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor 1420c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) 1421c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor Method->setQualifierInfo(QualifierLoc); 1422b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1423d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor if (TemplateParams) { 1424d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // Our resulting instantiation is actually a function template, since we 1425d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // are substituting only the outer template parameters. For example, given 14261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 1427d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // template<typename T> 1428d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // struct X { 1429d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // template<typename U> void f(T, U); 1430d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // }; 1431d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // 1432d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // X<int> x; 1433d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // 1434d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // We are instantiating the member template "f" within X<int>, which means 1435d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // substituting int for T, but leaving "f" as a member function template. 1436d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // Build the function template itself. 1437d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, Record, 1438d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor Method->getLocation(), 14391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Method->getDeclName(), 1440d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParams, Method); 1441b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) { 1442b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall FunctionTemplate->setLexicalDeclContext(Owner); 1443b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall FunctionTemplate->setObjectOfFriendDecl(true); 1444b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (D->isOutOfLine()) 14451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionTemplate->setLexicalDeclContext(D->getLexicalDeclContext()); 1446d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor Method->setDescribedFunctionTemplate(FunctionTemplate); 144766724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor } else if (FunctionTemplate) { 144866724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor // Record this function template specialization. 144924bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 145024bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 1451838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Method->setFunctionTemplateSpecialization(FunctionTemplate, 1452910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor TemplateArgumentList::CreateCopy(SemaRef.Context, 1453910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Innermost.first, 1454910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Innermost.second), 145566724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor InsertPos); 1456b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (!isFriend) { 145766724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor // Record that this is an instantiation of a member function. 14582db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor Method->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); 145966724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor } 146066724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we are instantiating a member function defined 14627caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // out-of-line, the instantiation will have the same lexical 14637caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // context (which will be a namespace scope) as the template. 1464b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) { 14654eab39f0745fb1949dbb40c4145771b927888242John McCall if (NumTempParamLists) 14664eab39f0745fb1949dbb40c4145771b927888242John McCall Method->setTemplateParameterListsInfo(SemaRef.Context, 14674eab39f0745fb1949dbb40c4145771b927888242John McCall NumTempParamLists, 14684eab39f0745fb1949dbb40c4145771b927888242John McCall TempParamLists.data()); 14694eab39f0745fb1949dbb40c4145771b927888242John McCall 1470b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Method->setLexicalDeclContext(Owner); 1471b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Method->setObjectOfFriendDecl(true); 1472b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (D->isOutOfLine()) 14737caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Method->setLexicalDeclContext(D->getLexicalDeclContext()); 14741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14755545e166a956a20d7a6b58408e251a1119025485Douglas Gregor // Attach the parameters 14765545e166a956a20d7a6b58408e251a1119025485Douglas Gregor for (unsigned P = 0; P < Params.size(); ++P) 14775545e166a956a20d7a6b58408e251a1119025485Douglas Gregor Params[P]->setOwningFunction(Method); 1478838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Method->setParams(Params.data(), Params.size()); 14795545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 14805545e166a956a20d7a6b58408e251a1119025485Douglas Gregor if (InitMethodInstantiation(Method, D)) 14815545e166a956a20d7a6b58408e251a1119025485Douglas Gregor Method->setInvalidDecl(); 14822dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 14832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName, 14842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Sema::ForRedeclaration); 14851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1486b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (!FunctionTemplate || TemplateParams || isFriend) { 1487b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall SemaRef.LookupQualifiedName(Previous, Record); 14881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1489dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // In C++, the previous declaration we find might be a tag type 1490dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // (class or enum). In this case, the new declaration will hide the 1491dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // tag type. Note that this does does not apply if we're declaring a 1492dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // typedef (C++ [dcl.typedef]p4). 14936826314938f8510cd1a6b03b5d032592456ae27bJohn McCall if (Previous.isSingleTagDecl()) 14946826314938f8510cd1a6b03b5d032592456ae27bJohn McCall Previous.clear(); 1495dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor } 14962dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 149765ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor bool Redeclaration = false; 1498c80e8115278ba1537c8b517a083ecbd0a018b579Peter Collingbourne SemaRef.CheckFunctionDeclaration(0, Method, Previous, false, Redeclaration); 149965ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor 15004ba3136b3eb9740a07bd61d0ab23ce9a8d894deeDouglas Gregor if (D->isPure()) 15014ba3136b3eb9740a07bd61d0ab23ce9a8d894deeDouglas Gregor SemaRef.CheckPureMethod(Method, SourceRange()); 15024ba3136b3eb9740a07bd61d0ab23ce9a8d894deeDouglas Gregor 150346460a68f6508775e98c19b4bb8454bb471aac24John McCall Method->setAccess(D->getAccess()); 150446460a68f6508775e98c19b4bb8454bb471aac24John McCall 15059eefa229dfb71400a6bbee326420a7f0e2e91f1fAnders Carlsson SemaRef.CheckOverrideControl(Method); 15069eefa229dfb71400a6bbee326420a7f0e2e91f1fAnders Carlsson 1507b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate) { 1508b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall // If there's a function template, let our caller handle it. 1509b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (Method->isInvalidDecl() && !Previous.empty()) { 1510b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall // Don't hide a (potentially) valid declaration with an invalid one. 1511b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else { 1512b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall NamedDecl *DeclToAdd = (TemplateParams 1513b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall ? cast<NamedDecl>(FunctionTemplate) 1514b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall : Method); 1515b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) 1516b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Record->makeDeclVisibleInContext(DeclToAdd); 1517b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall else 1518b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Owner->addDecl(DeclToAdd); 1519b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1520eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt 1521eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt if (D->isExplicitlyDefaulted()) { 1522eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt SemaRef.SetDeclDefaulted(Method, Method->getLocation()); 1523eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt } else { 1524eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt assert(!D->isDefaulted() && 1525eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt "should not implicitly default uninstantiated function"); 1526eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt } 1527eb88ae5f9acdd17ec76fb83e151a77e25e4e8f31Sean Hunt 15282dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Method; 15292dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 15302dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1531615c5d4674355ba830b9978f462ca7a8c5d15f85Douglas GregorDecl *TemplateDeclInstantiator::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 1532dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor return VisitCXXMethodDecl(D); 1533615c5d4674355ba830b9978f462ca7a8c5d15f85Douglas Gregor} 1534615c5d4674355ba830b9978f462ca7a8c5d15f85Douglas Gregor 153503b2b07aaef3a585aec13048a33356c7f635de72Douglas GregorDecl *TemplateDeclInstantiator::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 153617e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor return VisitCXXMethodDecl(D); 153703b2b07aaef3a585aec13048a33356c7f635de72Douglas Gregor} 153803b2b07aaef3a585aec13048a33356c7f635de72Douglas Gregor 1539bb969ed4193e2eadabfaa0dfd0b94312b6146349Douglas GregorDecl *TemplateDeclInstantiator::VisitCXXConversionDecl(CXXConversionDecl *D) { 154065ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor return VisitCXXMethodDecl(D); 1541bb969ed4193e2eadabfaa0dfd0b94312b6146349Douglas Gregor} 1542bb969ed4193e2eadabfaa0dfd0b94312b6146349Douglas Gregor 15436477b69cc93e0a0ff15036d60d604f3544da0f29Douglas GregorParmVarDecl *TemplateDeclInstantiator::VisitParmVarDecl(ParmVarDecl *D) { 1544fb44de956f27875def889482b5393475060392afJohn McCall return SemaRef.SubstParmVarDecl(D, TemplateArgs, /*indexAdjustment*/ 0, 1545fb44de956f27875def889482b5393475060392afJohn McCall llvm::Optional<unsigned>()); 15462dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 15472dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1548e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCallDecl *TemplateDeclInstantiator::VisitTemplateTypeParmDecl( 1549e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateTypeParmDecl *D) { 1550e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall // TODO: don't always clone when decls are refcounted. 15514fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth assert(D->getTypeForDecl()->isTemplateTypeParmType()); 15521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1553e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateTypeParmDecl *Inst = 1554344577e6b58f42d18dc8118c8903b49a85dc005eAbramo Bagnara TemplateTypeParmDecl::Create(SemaRef.Context, Owner, 1555344577e6b58f42d18dc8118c8903b49a85dc005eAbramo Bagnara D->getLocStart(), D->getLocation(), 15564fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth D->getDepth() - TemplateArgs.getNumLevels(), 15574fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth D->getIndex(), D->getIdentifier(), 1558e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall D->wasDeclaredWithTypename(), 1559e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall D->isParameterPack()); 15609a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor Inst->setAccess(AS_public); 15619a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor 15620f8716b7bb25d61a82f699b3975167451f7b5a68Douglas Gregor if (D->hasDefaultArgument()) 15630f8716b7bb25d61a82f699b3975167451f7b5a68Douglas Gregor Inst->setDefaultArgument(D->getDefaultArgumentInfo(), false); 1564e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1565550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Introduce this template parameter's instantiation into the instantiation 1566550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // scope. 1567550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Inst); 1568550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor 1569e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return Inst; 1570e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall} 1571e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 157233642df30088f2ddb0b22c609523ab8df9dff595Douglas GregorDecl *TemplateDeclInstantiator::VisitNonTypeTemplateParmDecl( 157333642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor NonTypeTemplateParmDecl *D) { 157433642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor // Substitute into the type of the non-type template parameter. 15756952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeLoc TL = D->getTypeSourceInfo()->getTypeLoc(); 15766952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::SmallVector<TypeSourceInfo *, 4> ExpandedParameterPackTypesAsWritten; 15776952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::SmallVector<QualType, 4> ExpandedParameterPackTypes; 15786952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool IsExpandedParameterPack = false; 15796952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *DI; 158033642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor QualType T; 158133642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor bool Invalid = false; 15826952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15836952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (D->isExpandedParameterPack()) { 15846952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // The non-type template parameter pack is an already-expanded pack 15856952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // expansion of types. Substitute into each of the expanded types. 15866952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.reserve(D->getNumExpansionTypes()); 15876952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.reserve(D->getNumExpansionTypes()); 15886952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 15896952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *NewDI =SemaRef.SubstType(D->getExpansionTypeSourceInfo(I), 15906952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TemplateArgs, 15916952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 15926952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDeclName()); 15936952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!NewDI) 15946952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15956952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15966952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.push_back(NewDI); 15976952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor QualType NewT =SemaRef.CheckNonTypeTemplateParameterType(NewDI->getType(), 15986952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation()); 15996952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (NewT.isNull()) 16006952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16016952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.push_back(NewT); 16026952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 16036952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16046952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor IsExpandedParameterPack = true; 16056952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = D->getTypeSourceInfo(); 16066952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = DI->getType(); 16076952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } else if (isa<PackExpansionTypeLoc>(TL)) { 16086952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // The non-type template parameter pack's type is a pack expansion of types. 16096952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Determine whether we need to expand this parameter pack into separate 16106952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // types. 16116952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor PackExpansionTypeLoc Expansion = cast<PackExpansionTypeLoc>(TL); 16126952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeLoc Pattern = Expansion.getPatternLoc(); 16136952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; 16146952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor SemaRef.collectUnexpandedParameterPacks(Pattern, Unexpanded); 16156952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16166952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Determine whether the set of unexpanded parameter packs can and should 16176952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // be expanded. 16186952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool Expand = true; 16196952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool RetainExpansion = false; 16206952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::Optional<unsigned> OrigNumExpansions 16216952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor = Expansion.getTypePtr()->getNumExpansions(); 16226952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::Optional<unsigned> NumExpansions = OrigNumExpansions; 16236952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (SemaRef.CheckParameterPacksForExpansion(Expansion.getEllipsisLoc(), 16246952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Pattern.getSourceRange(), 16256952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Unexpanded.data(), 16266952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Unexpanded.size(), 16276952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TemplateArgs, 16286952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Expand, RetainExpansion, 16296952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NumExpansions)) 16306952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16316952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16326952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (Expand) { 16336952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor for (unsigned I = 0; I != *NumExpansions; ++I) { 16346952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, I); 16356952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *NewDI = SemaRef.SubstType(Pattern, TemplateArgs, 16366952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 16376952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDeclName()); 16386952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!NewDI) 16396952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16406952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16416952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.push_back(NewDI); 16426952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor QualType NewT = SemaRef.CheckNonTypeTemplateParameterType( 16436952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NewDI->getType(), 16446952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation()); 16456952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (NewT.isNull()) 16466952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16476952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.push_back(NewT); 16486952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 16496952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16506952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Note that we have an expanded parameter pack. The "type" of this 16516952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // expanded parameter pack is the original expansion type, but callers 16526952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // will end up using the expanded parameter pack types for type-checking. 16536952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor IsExpandedParameterPack = true; 16546952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = D->getTypeSourceInfo(); 16556952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = DI->getType(); 16566952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } else { 16576952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // We cannot fully expand the pack expansion now, so substitute into the 16586952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // pattern and create a new pack expansion type. 16596952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); 16606952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *NewPattern = SemaRef.SubstType(Pattern, TemplateArgs, 16616952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 16626952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDeclName()); 16636952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!NewPattern) 16646952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16656952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16666952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = SemaRef.CheckPackExpansion(NewPattern, Expansion.getEllipsisLoc(), 16676952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NumExpansions); 16686952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!DI) 16696952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16706952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16716952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = DI->getType(); 16726952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 16736952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } else { 16746952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Simple case: substitution into a parameter that is not a parameter pack. 16756952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = SemaRef.SubstType(D->getTypeSourceInfo(), TemplateArgs, 16766952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), D->getDeclName()); 16776952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!DI) 16786952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16796952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16806952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Check that this type is acceptable for a non-type template parameter. 16816952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = SemaRef.CheckNonTypeTemplateParameterType(DI->getType(), 16826952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation()); 16836952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (T.isNull()) { 16846952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = SemaRef.Context.IntTy; 16856952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Invalid = true; 16866952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 168733642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor } 168833642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor 16896952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NonTypeTemplateParmDecl *Param; 16906952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (IsExpandedParameterPack) 16916952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, 1692ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getInnerLocStart(), 1693ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getLocation(), 169471b87e4fa6bfb47107b099135864f9024004a4c9Douglas Gregor D->getDepth() - TemplateArgs.getNumLevels(), 16956952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getPosition(), 16966952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getIdentifier(), T, 16976952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI, 16986952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.data(), 16996952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.size(), 17006952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.data()); 17016952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 17026952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, 1703ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getInnerLocStart(), 17046952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 17056952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDepth() - TemplateArgs.getNumLevels(), 17066952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getPosition(), 17076952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getIdentifier(), T, 17086952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->isParameterPack(), DI); 17096952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 17109a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor Param->setAccess(AS_public); 171133642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor if (Invalid) 171233642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor Param->setInvalidDecl(); 171333642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor 1714d92f7a297c0ed3f7d0ebcbb557e1d4c1925b8c72Abramo Bagnara Param->setDefaultArgument(D->getDefaultArgument(), false); 1715550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor 1716550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Introduce this template parameter's instantiation into the instantiation 1717550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // scope. 1718550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); 171933642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor return Param; 172033642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor} 172133642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor 17220dde18e5a713bc186062ca1ebc9967500b07faeeAnders CarlssonDecl * 17239106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas GregorTemplateDeclInstantiator::VisitTemplateTemplateParmDecl( 17249106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateTemplateParmDecl *D) { 17259106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Instantiate the template parameter list of the template template parameter. 17269106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateParameterList *TempParams = D->getTemplateParameters(); 17279106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateParameterList *InstParams; 17289106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor { 17299106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Perform the actual substitution of template parameters within a new, 17309106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // local instantiation scope. 17312a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 17329106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor InstParams = SubstTemplateParams(TempParams); 17339106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor if (!InstParams) 17349106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor return NULL; 17359106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor } 17369106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor 17379106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Build the template template parameter. 17389106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateTemplateParmDecl *Param 17399106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor = TemplateTemplateParmDecl::Create(SemaRef.Context, Owner, D->getLocation(), 174071b87e4fa6bfb47107b099135864f9024004a4c9Douglas Gregor D->getDepth() - TemplateArgs.getNumLevels(), 174161c4d28e36cd3f1be392cb77f07436d1fa6b0f9fDouglas Gregor D->getPosition(), D->isParameterPack(), 174261c4d28e36cd3f1be392cb77f07436d1fa6b0f9fDouglas Gregor D->getIdentifier(), InstParams); 1743d92f7a297c0ed3f7d0ebcbb557e1d4c1925b8c72Abramo Bagnara Param->setDefaultArgument(D->getDefaultArgument(), false); 17449a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor Param->setAccess(AS_public); 17454469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor 17469106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Introduce this template parameter's instantiation into the instantiation 17479106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // scope. 17489106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); 17499106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor 17509106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor return Param; 17519106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor} 17529106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor 175348c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas GregorDecl *TemplateDeclInstantiator::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 1754db9924191092b4d426cc066637d81698211846aaDouglas Gregor // Using directives are never dependent (and never contain any types or 1755db9924191092b4d426cc066637d81698211846aaDouglas Gregor // expressions), so they require no explicit instantiation work. 175648c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor 175748c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor UsingDirectiveDecl *Inst 175848c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor = UsingDirectiveDecl::Create(SemaRef.Context, Owner, D->getLocation(), 175948c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getNamespaceKeyLocation(), 1760db9924191092b4d426cc066637d81698211846aaDouglas Gregor D->getQualifierLoc(), 176148c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getIdentLocation(), 176248c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getNominatedNamespace(), 176348c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getCommonAncestor()); 176448c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor Owner->addDecl(Inst); 176548c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor return Inst; 176648c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor} 176748c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor 1768ed97649e9574b9d854fa4d6109c9333ae0993554John McCallDecl *TemplateDeclInstantiator::VisitUsingDecl(UsingDecl *D) { 17691b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor 17701b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // The nested name specifier may be dependent, for example 17711b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // template <typename T> struct t { 17721b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // struct s1 { T f1(); }; 17731b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // struct s2 : s1 { using s1::f1; }; 17741b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // }; 17751b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // template struct t<int>; 17761b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // Here, in using s1::f1, s1 refers to t<T>::s1; 17771b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // we need to substitute for t<int>::s1. 17785149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor NestedNameSpecifierLoc QualifierLoc 17795149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), 17805149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor TemplateArgs); 17815149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor if (!QualifierLoc) 1782dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor return 0; 17831b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor 17841b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // The name info is non-dependent, so no transformation 17851b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // is required. 1786ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara DeclarationNameInfo NameInfo = D->getNameInfo(); 1787ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 17889f54ad4381370c6b771424b53d219e661d6d6706John McCall // We only need to do redeclaration lookups if we're in a class 17899f54ad4381370c6b771424b53d219e661d6d6706John McCall // scope (in fact, it's not really even possible in non-class 17909f54ad4381370c6b771424b53d219e661d6d6706John McCall // scopes). 17919f54ad4381370c6b771424b53d219e661d6d6706John McCall bool CheckRedeclaration = Owner->isRecord(); 17929f54ad4381370c6b771424b53d219e661d6d6706John McCall 1793ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara LookupResult Prev(SemaRef, NameInfo, Sema::LookupUsingDeclName, 1794ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara Sema::ForRedeclaration); 17959f54ad4381370c6b771424b53d219e661d6d6706John McCall 1796ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingDecl *NewUD = UsingDecl::Create(SemaRef.Context, Owner, 1797ed97649e9574b9d854fa4d6109c9333ae0993554John McCall D->getUsingLocation(), 17985149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor QualifierLoc, 1799ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara NameInfo, 1800ed97649e9574b9d854fa4d6109c9333ae0993554John McCall D->isTypeName()); 1801ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 18025149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor CXXScopeSpec SS; 18035149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor SS.Adopt(QualifierLoc); 18049f54ad4381370c6b771424b53d219e661d6d6706John McCall if (CheckRedeclaration) { 18059f54ad4381370c6b771424b53d219e661d6d6706John McCall Prev.setHideTags(false); 18069f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.LookupQualifiedName(Prev, Owner); 18079f54ad4381370c6b771424b53d219e661d6d6706John McCall 18089f54ad4381370c6b771424b53d219e661d6d6706John McCall // Check for invalid redeclarations. 18099f54ad4381370c6b771424b53d219e661d6d6706John McCall if (SemaRef.CheckUsingDeclRedeclaration(D->getUsingLocation(), 18109f54ad4381370c6b771424b53d219e661d6d6706John McCall D->isTypeName(), SS, 18119f54ad4381370c6b771424b53d219e661d6d6706John McCall D->getLocation(), Prev)) 18129f54ad4381370c6b771424b53d219e661d6d6706John McCall NewUD->setInvalidDecl(); 18139f54ad4381370c6b771424b53d219e661d6d6706John McCall 18149f54ad4381370c6b771424b53d219e661d6d6706John McCall } 18159f54ad4381370c6b771424b53d219e661d6d6706John McCall 18169f54ad4381370c6b771424b53d219e661d6d6706John McCall if (!NewUD->isInvalidDecl() && 18179f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.CheckUsingDeclQualifier(D->getUsingLocation(), SS, 1818ed97649e9574b9d854fa4d6109c9333ae0993554John McCall D->getLocation())) 1819ed97649e9574b9d854fa4d6109c9333ae0993554John McCall NewUD->setInvalidDecl(); 18209f54ad4381370c6b771424b53d219e661d6d6706John McCall 1821ed97649e9574b9d854fa4d6109c9333ae0993554John McCall SemaRef.Context.setInstantiatedFromUsingDecl(NewUD, D); 1822ed97649e9574b9d854fa4d6109c9333ae0993554John McCall NewUD->setAccess(D->getAccess()); 1823ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Owner->addDecl(NewUD); 1824ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 18259f54ad4381370c6b771424b53d219e661d6d6706John McCall // Don't process the shadow decls for an invalid decl. 18269f54ad4381370c6b771424b53d219e661d6d6706John McCall if (NewUD->isInvalidDecl()) 18279f54ad4381370c6b771424b53d219e661d6d6706John McCall return NewUD; 18289f54ad4381370c6b771424b53d219e661d6d6706John McCall 1829323c310efa0abd7a786b0303501186b5f33eb8d7John McCall bool isFunctionScope = Owner->isFunctionOrMethod(); 1830323c310efa0abd7a786b0303501186b5f33eb8d7John McCall 18319f54ad4381370c6b771424b53d219e661d6d6706John McCall // Process the shadow decls. 18329f54ad4381370c6b771424b53d219e661d6d6706John McCall for (UsingDecl::shadow_iterator I = D->shadow_begin(), E = D->shadow_end(); 18339f54ad4381370c6b771424b53d219e661d6d6706John McCall I != E; ++I) { 18349f54ad4381370c6b771424b53d219e661d6d6706John McCall UsingShadowDecl *Shadow = *I; 18359f54ad4381370c6b771424b53d219e661d6d6706John McCall NamedDecl *InstTarget = 1836b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor cast_or_null<NamedDecl>(SemaRef.FindInstantiatedDecl( 1837b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor Shadow->getLocation(), 1838b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor Shadow->getTargetDecl(), 1839b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor TemplateArgs)); 1840b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!InstTarget) 1841b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor return 0; 18429f54ad4381370c6b771424b53d219e661d6d6706John McCall 18439f54ad4381370c6b771424b53d219e661d6d6706John McCall if (CheckRedeclaration && 18449f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.CheckUsingShadowDecl(NewUD, InstTarget, Prev)) 18459f54ad4381370c6b771424b53d219e661d6d6706John McCall continue; 18469f54ad4381370c6b771424b53d219e661d6d6706John McCall 18479f54ad4381370c6b771424b53d219e661d6d6706John McCall UsingShadowDecl *InstShadow 18489f54ad4381370c6b771424b53d219e661d6d6706John McCall = SemaRef.BuildUsingShadowDecl(/*Scope*/ 0, NewUD, InstTarget); 18499f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.Context.setInstantiatedFromUsingShadowDecl(InstShadow, Shadow); 1850323c310efa0abd7a786b0303501186b5f33eb8d7John McCall 1851323c310efa0abd7a786b0303501186b5f33eb8d7John McCall if (isFunctionScope) 1852323c310efa0abd7a786b0303501186b5f33eb8d7John McCall SemaRef.CurrentInstantiationScope->InstantiatedLocal(Shadow, InstShadow); 18539f54ad4381370c6b771424b53d219e661d6d6706John McCall } 1854ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 1855ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return NewUD; 1856ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 1857ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 1858ed97649e9574b9d854fa4d6109c9333ae0993554John McCallDecl *TemplateDeclInstantiator::VisitUsingShadowDecl(UsingShadowDecl *D) { 18599f54ad4381370c6b771424b53d219e661d6d6706John McCall // Ignore these; we handle them in bulk when processing the UsingDecl. 18609f54ad4381370c6b771424b53d219e661d6d6706John McCall return 0; 1861ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 1862ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 18637ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallDecl * TemplateDeclInstantiator 18647ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall ::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { 18655149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor NestedNameSpecifierLoc QualifierLoc 18665149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), 18675149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor TemplateArgs); 18685149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor if (!QualifierLoc) 18697ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall return 0; 18707ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 18717ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall CXXScopeSpec SS; 18725149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor SS.Adopt(QualifierLoc); 18737ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 1874ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara // Since NameInfo refers to a typename, it cannot be a C++ special name. 1875ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara // Hence, no tranformation is required for it. 1876ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara DeclarationNameInfo NameInfo(D->getDeclName(), D->getLocation()); 18777ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall NamedDecl *UD = 18787ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), 1879ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara D->getUsingLoc(), SS, NameInfo, 0, 18807ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*instantiation*/ true, 18817ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*typename*/ true, D->getTypenameLoc()); 18824469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor if (UD) 1883ed97649e9574b9d854fa4d6109c9333ae0993554John McCall SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); 1884ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 18857ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall return UD; 18867ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall} 18877ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 18887ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallDecl * TemplateDeclInstantiator 18897ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall ::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 18905149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor NestedNameSpecifierLoc QualifierLoc 18915149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), TemplateArgs); 18925149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor if (!QualifierLoc) 18930dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson return 0; 18945149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor 18950dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson CXXScopeSpec SS; 18965149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor SS.Adopt(QualifierLoc); 18971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1898ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara DeclarationNameInfo NameInfo 1899ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); 1900ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara 19011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NamedDecl *UD = 19029488ea120e093068021f944176c3d610dd540914John McCall SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), 1903ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara D->getUsingLoc(), SS, NameInfo, 0, 19047ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*instantiation*/ true, 19057ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*typename*/ false, SourceLocation()); 19064469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor if (UD) 1907ed97649e9574b9d854fa4d6109c9333ae0993554John McCall SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); 1908ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 19090d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return UD; 19100dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson} 19110dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson 1912ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCallDecl *Sema::SubstDecl(Decl *D, DeclContext *Owner, 1913d6350aefb1396b299e199c7f1fe51bb40c12e75eDouglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs) { 19147e06390f8a60440d6fc5f0e633acdc2edd8ee924Douglas Gregor TemplateDeclInstantiator Instantiator(*this, Owner, TemplateArgs); 19152fa98001f832836e3f652c211a9d2f80501d659aDouglas Gregor if (D->isInvalidDecl()) 19162fa98001f832836e3f652c211a9d2f80501d659aDouglas Gregor return 0; 19172fa98001f832836e3f652c211a9d2f80501d659aDouglas Gregor 19188dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Instantiator.Visit(D); 19198dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 19208dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 1921e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// \brief Instantiates a nested template parameter list in the current 1922e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// instantiation context. 1923e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// 1924e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// \param L The parameter list to instantiate 1925e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// 1926e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// \returns NULL if there was an error 1927e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCallTemplateParameterList * 1928ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCallTemplateDeclInstantiator::SubstTemplateParams(TemplateParameterList *L) { 1929e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall // Get errors for all the parameters before bailing out. 1930e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall bool Invalid = false; 1931e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1932e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall unsigned N = L->size(); 1933bf4ea56cdc376cef5a12abf6bf18dc34805c2226Douglas Gregor typedef llvm::SmallVector<NamedDecl *, 8> ParamVector; 1934e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall ParamVector Params; 1935e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall Params.reserve(N); 1936e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall for (TemplateParameterList::iterator PI = L->begin(), PE = L->end(); 1937e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall PI != PE; ++PI) { 1938bf4ea56cdc376cef5a12abf6bf18dc34805c2226Douglas Gregor NamedDecl *D = cast_or_null<NamedDecl>(Visit(*PI)); 1939e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall Params.push_back(D); 19409148c3f5829f4d031249faeb1043e7be914539e8Douglas Gregor Invalid = Invalid || !D || D->isInvalidDecl(); 1941e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall } 1942e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1943e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall // Clean up if we had an error. 1944ff331c15729f7d4439d253c97f4d60f2a7ffd0c6Douglas Gregor if (Invalid) 1945e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return NULL; 1946e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1947e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateParameterList *InstL 1948e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall = TemplateParameterList::Create(SemaRef.Context, L->getTemplateLoc(), 1949e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall L->getLAngleLoc(), &Params.front(), N, 1950e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall L->getRAngleLoc()); 1951e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return InstL; 19521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump} 1953e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1954ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// \brief Instantiate the declaration of a class template partial 1955ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// specialization. 1956ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// 1957ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// \param ClassTemplate the (instantiated) class template that is partially 1958ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor// specialized by the instantiation of \p PartialSpec. 1959ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// 1960ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// \param PartialSpec the (uninstantiated) class template partial 1961ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// specialization that we are instantiating. 1962ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// 1963d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor/// \returns The instantiated partial specialization, if successful; otherwise, 1964d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor/// NULL to indicate an error. 1965d65587f7a6d38965fa37158d3f57990a7faf3836Douglas GregorClassTemplatePartialSpecializationDecl * 1966ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas GregorTemplateDeclInstantiator::InstantiateClassTemplatePartialSpecialization( 1967ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateDecl *ClassTemplate, 1968ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplatePartialSpecializationDecl *PartialSpec) { 1969550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Create a local instantiation scope for this class template partial 1970550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // specialization, which will contain the instantiations of the template 1971550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // parameters. 19722a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 1973550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor 1974ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Substitute into the template parameters of the class template partial 1975ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specialization. 1976ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor TemplateParameterList *TempParams = PartialSpec->getTemplateParameters(); 1977ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 1978ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (!InstParams) 1979d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return 0; 1980ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1981ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Substitute into the template arguments of the class template partial 1982ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specialization. 1983d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall TemplateArgumentListInfo InstTemplateArgs; // no angle locations 1984e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor if (SemaRef.Subst(PartialSpec->getTemplateArgsAsWritten(), 1985e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor PartialSpec->getNumTemplateArgsAsWritten(), 1986e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor InstTemplateArgs, TemplateArgs)) 1987e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor return 0; 1988ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1989ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Check that the template argument list is well-formed for this 1990ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // class template. 1991910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor llvm::SmallVector<TemplateArgument, 4> Converted; 1992ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (SemaRef.CheckTemplateArgumentList(ClassTemplate, 1993ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor PartialSpec->getLocation(), 1994d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall InstTemplateArgs, 1995ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor false, 1996ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Converted)) 1997d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return 0; 1998ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1999ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Figure out where to insert this class template partial specialization 2000ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // in the member template's set of class template partial specializations. 2001ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor void *InsertPos = 0; 2002ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateSpecializationDecl *PrevDecl 2003910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor = ClassTemplate->findPartialSpecialization(Converted.data(), 2004910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.size(), InsertPos); 2005ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2006ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Build the canonical type that describes the converted template 2007ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // arguments of the class template partial specialization. 2008ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor QualType CanonType 2009ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = SemaRef.Context.getTemplateSpecializationType(TemplateName(ClassTemplate), 2010910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.data(), 2011910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.size()); 2012ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2013ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Build the fully-sugared type for this class template 2014ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specialization as the user wrote in the specialization 2015ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // itself. This means that we'll pretty-print the type retrieved 2016ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // from the specialization's declaration the way that the user 2017ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // actually wrote the specialization, rather than formatting the 2018ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // name based on the "canonical" representation used to store the 2019ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template arguments in the specialization. 20203cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TypeSourceInfo *WrittenTy 20213cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = SemaRef.Context.getTemplateSpecializationTypeInfo( 20223cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TemplateName(ClassTemplate), 20233cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall PartialSpec->getLocation(), 2024d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall InstTemplateArgs, 2025ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor CanonType); 2026ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2027ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (PrevDecl) { 2028ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // We've already seen a partial specialization with the same template 2029ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // parameters and template arguments. This can happen, for example, when 2030ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // substituting the outer template arguments ends up causing two 2031ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // class template partial specializations of a member class template 2032ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // to have identical forms, e.g., 2033ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // 2034ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename T, typename U> 2035ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // struct Outer { 2036ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename X, typename Y> struct Inner; 2037ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename Y> struct Inner<T, Y>; 2038ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename Y> struct Inner<U, Y>; 2039ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // }; 2040ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // 2041ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Outer<int, int> outer; // error: the partial specializations of Inner 2042ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // // have the same signature. 2043ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor SemaRef.Diag(PartialSpec->getLocation(), diag::err_partial_spec_redeclared) 2044d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor << WrittenTy->getType(); 2045ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor SemaRef.Diag(PrevDecl->getLocation(), diag::note_prev_partial_spec_here) 2046ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor << SemaRef.Context.getTypeDeclType(PrevDecl); 2047d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return 0; 2048ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor } 2049ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2050ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2051ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Create the class template partial specialization declaration. 2052ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplatePartialSpecializationDecl *InstPartialSpec 205313c8577201e4fc0ddac5f09d05fd1778832137d1Douglas Gregor = ClassTemplatePartialSpecializationDecl::Create(SemaRef.Context, 205413c8577201e4fc0ddac5f09d05fd1778832137d1Douglas Gregor PartialSpec->getTagKind(), 205513c8577201e4fc0ddac5f09d05fd1778832137d1Douglas Gregor Owner, 2056ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara PartialSpec->getLocStart(), 2057ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara PartialSpec->getLocation(), 2058ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor InstParams, 2059ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplate, 2060910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.data(), 2061910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.size(), 2062d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall InstTemplateArgs, 20633cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall CanonType, 2064dc60c1eb4acbde6edcec9760de92f9098593d915Douglas Gregor 0, 2065cc0b1bc979b650a8a8b34b2032a074fd7724a90dArgyrios Kyrtzidis ClassTemplate->getNextPartialSpecSequenceNumber()); 2066b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Substitute the nested name specifier, if any. 2067b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(PartialSpec, InstPartialSpec)) 2068b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return 0; 2069b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 2070ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor InstPartialSpec->setInstantiatedFromMember(PartialSpec); 20714469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor InstPartialSpec->setTypeAsWritten(WrittenTy); 20724469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor 2073ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Add this partial specialization to the set of class template partial 2074ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specializations. 2075cc0b1bc979b650a8a8b34b2032a074fd7724a90dArgyrios Kyrtzidis ClassTemplate->AddPartialSpecialization(InstPartialSpec, InsertPos); 2076d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return InstPartialSpec; 2077ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor} 2078ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 207921ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCallTypeSourceInfo* 208021ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCallTemplateDeclInstantiator::SubstFunctionType(FunctionDecl *D, 208121ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall llvm::SmallVectorImpl<ParmVarDecl *> &Params) { 208221ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TypeSourceInfo *OldTInfo = D->getTypeSourceInfo(); 208321ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall assert(OldTInfo && "substituting function without type source info"); 208421ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall assert(Params.empty() && "parameter vector is non-empty at start"); 20856cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall TypeSourceInfo *NewTInfo 20866cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall = SemaRef.SubstFunctionDeclType(OldTInfo, TemplateArgs, 20876cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall D->getTypeSpecStartLoc(), 20886cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall D->getDeclName()); 208921ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall if (!NewTInfo) 209021ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall return 0; 20915545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 2092cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor if (NewTInfo != OldTInfo) { 2093cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // Get parameters from the new type info. 2094140a2bd77539b4537010d8cd6a0a3805ce724b3eAbramo Bagnara TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); 20956920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor if (FunctionProtoTypeLoc *OldProtoLoc 20966920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { 2097140a2bd77539b4537010d8cd6a0a3805ce724b3eAbramo Bagnara TypeLoc NewTL = NewTInfo->getTypeLoc().IgnoreParens(); 20986920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor FunctionProtoTypeLoc *NewProtoLoc = cast<FunctionProtoTypeLoc>(&NewTL); 20996920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor assert(NewProtoLoc && "Missing prototype?"); 210012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor unsigned NewIdx = 0, NumNewParams = NewProtoLoc->getNumArgs(); 210112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor for (unsigned OldIdx = 0, NumOldParams = OldProtoLoc->getNumArgs(); 210212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor OldIdx != NumOldParams; ++OldIdx) { 210312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *OldParam = OldProtoLoc->getArg(OldIdx); 210412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor if (!OldParam->isParameterPack() || 210512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor (NewIdx < NumNewParams && 210612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor NewProtoLoc->getArg(NewIdx)->isParameterPack())) { 210712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Simple case: normal parameter, or a parameter pack that's 210812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // instantiated to a (still-dependent) parameter pack. 210912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); 211012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Params.push_back(NewParam); 211112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(OldParam, 211212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor NewParam); 211312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor continue; 211412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 211512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor 211612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Parameter pack: make the instantiation an argument pack. 211712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor SemaRef.CurrentInstantiationScope->MakeInstantiatedLocalArgPack( 211812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor OldParam); 211921371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor unsigned NumArgumentsInExpansion 212021371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor = SemaRef.getNumArgumentsInExpansion(OldParam->getType(), 212121371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor TemplateArgs); 212221371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor while (NumArgumentsInExpansion--) { 212312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); 212412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Params.push_back(NewParam); 212512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocalPackArg(OldParam, 212612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor NewParam); 212712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 21286920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor } 2129895162da2d52f4243f61081d7436de66af4503fcDouglas Gregor } 2130cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor } else { 2131cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // The function type itself was not dependent and therefore no 2132cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // substitution occurred. However, we still need to instantiate 2133cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // the function parameters themselves. 2134140a2bd77539b4537010d8cd6a0a3805ce724b3eAbramo Bagnara TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); 21356920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor if (FunctionProtoTypeLoc *OldProtoLoc 21366920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { 21376920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor for (unsigned i = 0, i_end = OldProtoLoc->getNumArgs(); i != i_end; ++i) { 21386920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor ParmVarDecl *Parm = VisitParmVarDecl(OldProtoLoc->getArg(i)); 21396920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor if (!Parm) 21406920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor return 0; 21416920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor Params.push_back(Parm); 21426920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor } 2143cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor } 2144cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor } 214521ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall return NewTInfo; 21465545e166a956a20d7a6b58408e251a1119025485Douglas Gregor} 21475545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 21481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Initializes the common fields of an instantiation function 2149e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor/// declaration (New) from the corresponding fields of its template (Tmpl). 2150e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor/// 2151e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor/// \returns true if there was an error 21521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpbool 21531eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateDeclInstantiator::InitFunctionInstantiation(FunctionDecl *New, 2154e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor FunctionDecl *Tmpl) { 215510620eb5164e31208fcbf0437cd79ae535ed0559Sean Hunt if (Tmpl->isDeletedAsWritten()) 215610620eb5164e31208fcbf0437cd79ae535ed0559Sean Hunt New->setDeletedAsWritten(); 21571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2158cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // If we are performing substituting explicitly-specified template arguments 2159cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // or deduced template arguments into a function template and we reach this 2160cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // point, we are now past the point where SFINAE applies and have committed 21611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to keeping the new function template specialization. We therefore 21621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // convert the active template instantiation for the function template 2163cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // into a template instantiation for this specific function template 2164cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // specialization, which is not a SFINAE context, so that we diagnose any 2165cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // further errors in the declaration itself. 2166cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor typedef Sema::ActiveTemplateInstantiation ActiveInstType; 2167cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInstType &ActiveInst = SemaRef.ActiveTemplateInstantiations.back(); 2168cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor if (ActiveInst.Kind == ActiveInstType::ExplicitTemplateArgumentSubstitution || 2169cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInst.Kind == ActiveInstType::DeducedTemplateArgumentSubstitution) { 21701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionTemplateDecl *FunTmpl 2171cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor = dyn_cast<FunctionTemplateDecl>((Decl *)ActiveInst.Entity)) { 21721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(FunTmpl->getTemplatedDecl() == Tmpl && 2173cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor "Deduction from the wrong function template?"); 2174bcbb8bd3326a86aa70b7df386ae3c86c9ad255c5Daniel Dunbar (void) FunTmpl; 2175cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInst.Kind = ActiveInstType::TemplateInstantiation; 2176cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInst.Entity = reinterpret_cast<uintptr_t>(New); 2177f35f828f9883123772a9731af190a608f3236ef4Douglas Gregor --SemaRef.NonInstantiationEntries; 2178cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor } 2179cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor } 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21810ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor const FunctionProtoType *Proto = Tmpl->getType()->getAs<FunctionProtoType>(); 21820ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor assert(Proto && "Function template without prototype?"); 21830ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 218460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (Proto->hasExceptionSpec() || Proto->getNoReturnAttr()) { 21850ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // The function has an exception specification or a "noreturn" 21860ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // attribute. Substitute into each of the exception types. 21870ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor llvm::SmallVector<QualType, 4> Exceptions; 21880ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor for (unsigned I = 0, N = Proto->getNumExceptions(); I != N; ++I) { 21890ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // FIXME: Poor location information! 2190b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (const PackExpansionType *PackExpansion 2191b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor = Proto->getExceptionType(I)->getAs<PackExpansionType>()) { 2192b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor // We have a pack expansion. Instantiate it. 2193b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; 2194b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor SemaRef.collectUnexpandedParameterPacks(PackExpansion->getPattern(), 2195b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Unexpanded); 2196b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor assert(!Unexpanded.empty() && 2197b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor "Pack expansion without parameter packs?"); 219860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2199b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor bool Expand = false; 2200d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor bool RetainExpansion = false; 2201cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions 2202cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor = PackExpansion->getNumExpansions(); 2203b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (SemaRef.CheckParameterPacksForExpansion(New->getLocation(), 2204b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor SourceRange(), 2205b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Unexpanded.data(), 2206b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Unexpanded.size(), 2207b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor TemplateArgs, 2208d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor Expand, 2209d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor RetainExpansion, 2210d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor NumExpansions)) 2211b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 221260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2213b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (!Expand) { 2214b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor // We can't expand this pack expansion into separate arguments yet; 2215cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor // just substitute into the pattern and create a new pack expansion 2216cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor // type. 2217b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); 2218b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor QualType T = SemaRef.SubstType(PackExpansion->getPattern(), 2219b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor TemplateArgs, 2220b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor New->getLocation(), New->getDeclName()); 2221b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (T.isNull()) 2222b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 2223b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor 2224cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = SemaRef.Context.getPackExpansionType(T, NumExpansions); 2225b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Exceptions.push_back(T); 2226b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor continue; 2227b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 222860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2229b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor // Substitute into the pack expansion pattern for each template 2230b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor bool Invalid = false; 2231cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor for (unsigned ArgIdx = 0; ArgIdx != *NumExpansions; ++ArgIdx) { 2232b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, ArgIdx); 2233b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor 2234b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor QualType T = SemaRef.SubstType(PackExpansion->getPattern(), 2235b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor TemplateArgs, 2236b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor New->getLocation(), New->getDeclName()); 2237b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (T.isNull()) { 2238b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Invalid = true; 2239b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 2240b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 224160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2242b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Exceptions.push_back(T); 2243b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 224460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2245b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (Invalid) 2246b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 224760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2248b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor continue; 2249b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 2250b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor 22510ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor QualType T 22520ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor = SemaRef.SubstType(Proto->getExceptionType(I), TemplateArgs, 22530ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor New->getLocation(), New->getDeclName()); 22540ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor if (T.isNull() || 22550ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor SemaRef.CheckSpecifiedExceptionType(T, New->getLocation())) 22560ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor continue; 22570ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 22580ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor Exceptions.push_back(T); 22590ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor } 226056fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl Expr *NoexceptExpr = 0; 226156fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl if (Expr *OldNoexceptExpr = Proto->getNoexceptExpr()) { 22623617e198aa89d4aa0921343a22b96823a63f8a58Douglas Gregor EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); 226356fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl ExprResult E = SemaRef.SubstExpr(OldNoexceptExpr, TemplateArgs); 226456fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl if (E.isUsable()) 226556fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl NoexceptExpr = E.take(); 226656fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl } 22670ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 22680ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // Rebuild the function type 22690ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 2270e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI = Proto->getExtProtoInfo(); 227160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.ExceptionSpecType = Proto->getExceptionSpecType(); 2272e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.NumExceptions = Exceptions.size(); 2273e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Exceptions = Exceptions.data(); 227456fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl EPI.NoexceptExpr = NoexceptExpr; 2275e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Proto->getExtInfo(); 2276e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 22770ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor const FunctionProtoType *NewProto 22780ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor = New->getType()->getAs<FunctionProtoType>(); 22790ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor assert(NewProto && "Template instantiation without function prototype?"); 22800ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor New->setType(SemaRef.Context.getFunctionType(NewProto->getResultType(), 22810ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor NewProto->arg_type_begin(), 22820ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor NewProto->getNumArgs(), 2283e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI)); 22840ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor } 22850ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 22861d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, Tmpl, New); 22877cf84d66965a7706004d8590b5af5fe54b85f525Douglas Gregor 2288e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return false; 2289e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor} 2290e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor 22915545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// \brief Initializes common fields of an instantiated method 22925545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// declaration (New) from the corresponding fields of its template 22935545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// (Tmpl). 22945545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// 22955545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// \returns true if there was an error 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpbool 22971eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateDeclInstantiator::InitMethodInstantiation(CXXMethodDecl *New, 22985545e166a956a20d7a6b58408e251a1119025485Douglas Gregor CXXMethodDecl *Tmpl) { 2299e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (InitFunctionInstantiation(New, Tmpl)) 2300e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return true; 23011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23025545e166a956a20d7a6b58408e251a1119025485Douglas Gregor New->setAccess(Tmpl->getAccess()); 2303e7184df728bb339633d88c774b5097dd9318cc8aFariborz Jahanian if (Tmpl->isVirtualAsWritten()) 230485606ebf3dd1b5dd81a59ef25b5ad47627664774Douglas Gregor New->setVirtualAsWritten(true); 23055545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 23065545e166a956a20d7a6b58408e251a1119025485Douglas Gregor // FIXME: attributes 23075545e166a956a20d7a6b58408e251a1119025485Douglas Gregor // FIXME: New needs a pointer to Tmpl 23085545e166a956a20d7a6b58408e251a1119025485Douglas Gregor return false; 23095545e166a956a20d7a6b58408e251a1119025485Douglas Gregor} 2310a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor 2311a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// \brief Instantiate the definition of the given function from its 2312a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// template. 2313a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// 2314b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// \param PointOfInstantiation the point at which the instantiation was 2315b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// required. Note that this is not precisely a "point of instantiation" 2316b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// for the function, but it's close. 2317b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// 2318a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// \param Function the already-instantiated declaration of a 2319b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// function template specialization or member function of a class template 2320b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// specialization. 2321b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// 2322b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// \param Recursive if true, recursively instantiates any functions that 2323b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// are required by this instantiation. 2324e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// 2325e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// \param DefinitionRequired if true, then we are performing an explicit 2326e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// instantiation where the body of the function is required. Complain if 2327e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// there is no such body. 2328f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregorvoid Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation, 2329b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor FunctionDecl *Function, 2330e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool Recursive, 2331e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool DefinitionRequired) { 233210620eb5164e31208fcbf0437cd79ae535ed0559Sean Hunt if (Function->isInvalidDecl() || Function->isDefined()) 233354dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor return; 233454dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor 2335251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Never instantiate an explicit specialization. 2336251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor if (Function->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) 2337251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return; 23386cfacfe54c75baa4d67f1fbdf4f80644b662818eDouglas Gregor 23391eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor // Find the function body that we'll be substituting. 23403b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor const FunctionDecl *PatternDecl = Function->getTemplateInstantiationPattern(); 2341f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt assert(PatternDecl && "instantiating a non-template"); 2342f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt 2343f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt Stmt *Pattern = PatternDecl->getBody(PatternDecl); 2344f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt assert(PatternDecl && "template definition is not a template"); 2345f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt if (!Pattern) { 2346f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt // Try to find a defaulted definition 2347f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt PatternDecl->isDefined(PatternDecl); 2348dfab854e6855dad076c0207b29859d452e398437Sean Hunt } 2349f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt assert(PatternDecl && "template definition is not a template"); 23501eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor 23518387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Postpone late parsed template instantiations. 2352f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt if (PatternDecl->isLateTemplateParsed() && 23538a29bc047a374df2464869b55581c24def68c2ecNick Lewycky !LateTemplateParser) { 23548387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet PendingInstantiations.push_back( 23558387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet std::make_pair(Function, PointOfInstantiation)); 23568387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return; 23578387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 23588387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 23598387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Call the LateTemplateParser callback if there a need to late parse 23608387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // a templated function definition. 2361f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt if (!Pattern && PatternDecl->isLateTemplateParsed() && 23628387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateTemplateParser) { 23634a47e8d35dc1778ef7e428d9edd7676be67e725fFrancois Pichet LateTemplateParser(OpaqueParser, PatternDecl); 23648387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Pattern = PatternDecl->getBody(PatternDecl); 23658387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 23668387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 2367f996e051d9953550982b57132daad8a5e3f7bd65Sean Hunt if (!Pattern && !PatternDecl->isDefaulted()) { 2368e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (DefinitionRequired) { 2369e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (Function->getPrimaryTemplate()) 2370e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PointOfInstantiation, 2371e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::err_explicit_instantiation_undefined_func_template) 2372e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor << Function->getPrimaryTemplate(); 2373e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor else 2374e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PointOfInstantiation, 2375e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::err_explicit_instantiation_undefined_member) 2376e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor << 1 << Function->getDeclName() << Function->getDeclContext(); 2377e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor 2378e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (PatternDecl) 2379e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PatternDecl->getLocation(), 2380e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::note_explicit_instantiation_here); 2381cfe833be882f600206f1587f157b025b368497d7Douglas Gregor Function->setInvalidDecl(); 238258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth } else if (Function->getTemplateSpecializationKind() 238358e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth == TSK_ExplicitInstantiationDefinition) { 238462c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.push_back( 238558e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth std::make_pair(Function, PointOfInstantiation)); 2386e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor } 238758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth 23881eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor return; 2389e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor } 23901eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor 2391d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // C++0x [temp.explicit]p9: 2392d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // Except for inline functions, other explicit instantiation declarations 23931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // have the effect of suppressing the implicit instantiation of the entity 2394d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // to which they refer. 23951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (Function->getTemplateSpecializationKind() 2396d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor == TSK_ExplicitInstantiationDeclaration && 23977ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregor !PatternDecl->isInlined()) 2398d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor return; 23991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2400f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor InstantiatingTemplate Inst(*this, PointOfInstantiation, Function); 2401f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor if (Inst) 2402e7089b0c6ffe8a8854150b60df00fb544099f77dDouglas Gregor return; 2403e7089b0c6ffe8a8854150b60df00fb544099f77dDouglas Gregor 2404b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // If we're performing recursive template instantiation, create our own 2405b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // queue of pending implicit instantiations that we will instantiate later, 2406b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // while we're still within our own instantiation context. 24072a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky llvm::SmallVector<VTableUse, 16> SavedVTableUses; 240862c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; 24092a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky if (Recursive) { 24102a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky VTableUses.swap(SavedVTableUses); 241162c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 24122a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky } 24131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24149679cafc6368cceed1a5e69d3038d0316401b352Douglas Gregor EnterExpressionEvaluationContext EvalContext(*this, 2415f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::PotentiallyEvaluated); 2416d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ActOnStartOfFunctionDef(0, Function); 2417e2c31ff0bc622e6fd7d47d7e08b53840f3be6c89Douglas Gregor 241854dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor // Introduce a new scope where local variable instantiations will be 241960406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // recorded, unless we're actually a member function within a local 242060406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // class, in which case we need to merge our results with the parent 242160406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // scope (of the enclosing function). 242260406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor bool MergeWithParentScope = false; 242360406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor if (CXXRecordDecl *Rec = dyn_cast<CXXRecordDecl>(Function->getDeclContext())) 242460406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor MergeWithParentScope = Rec->isLocalClass(); 242560406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor 242660406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor LocalInstantiationScope Scope(*this, MergeWithParentScope); 24271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 242854dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor // Introduce the instantiated function parameters into the local 24298a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne // instantiation scope, and set the parameter names to those used 24308a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne // in the template. 243112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor unsigned FParamIdx = 0; 24328a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne for (unsigned I = 0, N = PatternDecl->getNumParams(); I != N; ++I) { 24338a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne const ParmVarDecl *PatternParam = PatternDecl->getParamDecl(I); 243412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor if (!PatternParam->isParameterPack()) { 243512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Simple case: not a parameter pack. 243612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor assert(FParamIdx < Function->getNumParams()); 243712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *FunctionParam = Function->getParamDecl(I); 243812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor FunctionParam->setDeclName(PatternParam->getDeclName()); 243912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Scope.InstantiatedLocal(PatternParam, FunctionParam); 244012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ++FParamIdx; 244112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor continue; 244212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 244312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor 244412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Expand the parameter pack. 244512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Scope.MakeInstantiatedLocalArgPack(PatternParam); 244612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor for (unsigned NumFParams = Function->getNumParams(); 244712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor FParamIdx < NumFParams; 244812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ++FParamIdx) { 244912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx); 245012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor FunctionParam->setDeclName(PatternParam->getDeclName()); 245112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Scope.InstantiatedLocalPackArg(PatternParam, FunctionParam); 245212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 24538a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne } 245454dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor 2455b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor // Enter the scope of this instantiation. We don't use 2456b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor // PushDeclContext because we don't have a scope. 2457eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Sema::ContextRAII savedContext(*this, Function); 2458b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor 24591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump MultiLevelTemplateArgumentList TemplateArgs = 2460e7089b0c6ffe8a8854150b60df00fb544099f77dDouglas Gregor getTemplateInstantiationArgs(Function, 0, false, PatternDecl); 2461090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 2462cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (PatternDecl->isDefaulted()) { 2463cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ActOnFinishFunctionBody(Function, 0, /*IsInstantiation=*/true); 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2465cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SetDeclDefaulted(Function, PatternDecl->getLocation()); 2466cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 2467cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt // If this is a constructor, instantiate the member initializers. 2468cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (const CXXConstructorDecl *Ctor = 2469cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt dyn_cast<CXXConstructorDecl>(PatternDecl)) { 2470cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt InstantiateMemInitializers(cast<CXXConstructorDecl>(Function), Ctor, 2471cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt TemplateArgs); 2472cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 2473cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 2474cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt // Instantiate the function body. 2475cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt StmtResult Body = SubstStmt(Pattern, TemplateArgs); 2476cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 2477cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Body.isInvalid()) 2478cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Function->setInvalidDecl(); 2479cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 2480cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ActOnFinishFunctionBody(Function, Body.get(), 2481cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt /*IsInstantiation=*/true); 2482cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 2483b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor 24840c01d18094100db92d38daa923c95661512db203John McCall PerformDependentDiagnostics(PatternDecl, TemplateArgs); 24850c01d18094100db92d38daa923c95661512db203John McCall 2486eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall savedContext.pop(); 2487aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor 2488aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor DeclGroupRef DG(Function); 2489aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor Consumer.HandleTopLevelDecl(DG); 24901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 249160406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // This class may have local implicit instantiations that need to be 249260406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // instantiation within this scope. 249362c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PerformPendingInstantiations(/*LocalOnly=*/true); 249460406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor Scope.Exit(); 249560406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor 2496b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor if (Recursive) { 24972a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky // Define any pending vtables. 24982a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky DefineUsedVTables(); 24992a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky 2500b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // Instantiate any pending implicit instantiations found during the 25011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // instantiation of this template. 250262c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PerformPendingInstantiations(); 25031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25042a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky // Restore the set of pending vtables. 25058155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky assert(VTableUses.empty() && 25068155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky "VTableUses should be empty before it is discarded."); 25072a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky VTableUses.swap(SavedVTableUses); 25082a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky 2509b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // Restore the set of pending implicit instantiations. 25108155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky assert(PendingInstantiations.empty() && 25118155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky "PendingInstantiations should be empty before it is discarded."); 251262c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 2513b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor } 2514a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor} 2515a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor 2516a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// \brief Instantiate the definition of the given variable from its 2517a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// template. 2518a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// 25197caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// \param PointOfInstantiation the point at which the instantiation was 25207caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// required. Note that this is not precisely a "point of instantiation" 25217caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// for the function, but it's close. 25227caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// 25237caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// \param Var the already-instantiated declaration of a static member 25247caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// variable of a class template specialization. 25257caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// 25267caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// \param Recursive if true, recursively instantiates any functions that 25277caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// are required by this instantiation. 2528e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// 2529e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// \param DefinitionRequired if true, then we are performing an explicit 2530e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// instantiation where an out-of-line definition of the member variable 2531e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// is required. Complain if there is no such definition. 25327caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregorvoid Sema::InstantiateStaticDataMemberDefinition( 25337caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor SourceLocation PointOfInstantiation, 25347caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor VarDecl *Var, 2535e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool Recursive, 2536e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool DefinitionRequired) { 25377caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Var->isInvalidDecl()) 25387caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return; 25391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25407caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Find the out-of-line definition of this static data member. 25417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor VarDecl *Def = Var->getInstantiatedFromStaticDataMember(); 25427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Def && "This data member was not instantiated from a template?"); 25430d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor assert(Def->isStaticDataMember() && "Not a static data member?"); 25440d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor Def = Def->getOutOfLineDefinition(); 25451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25460d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor if (!Def) { 25477caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // We did not find an out-of-line definition of this static data member, 25487caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // so we won't perform any instantiation. Rather, we rely on the user to 25491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // instantiate this definition (or provide a specialization for it) in 25501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // another translation unit. 2551e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (DefinitionRequired) { 25520d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor Def = Var->getInstantiatedFromStaticDataMember(); 2553e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PointOfInstantiation, 2554e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::err_explicit_instantiation_undefined_member) 2555e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor << 2 << Var->getDeclName() << Var->getDeclContext(); 2556e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(Def->getLocation(), diag::note_explicit_instantiation_here); 255758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth } else if (Var->getTemplateSpecializationKind() 255858e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth == TSK_ExplicitInstantiationDefinition) { 255962c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.push_back( 256058e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth std::make_pair(Var, PointOfInstantiation)); 256158e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth } 256258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth 25637caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return; 25647caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 25657caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2566251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Never instantiate an explicit specialization. 25671028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor if (Var->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) 2568251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return; 2569251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 2570251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // C++0x [temp.explicit]p9: 2571251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Except for inline functions, other explicit instantiation declarations 2572251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // have the effect of suppressing the implicit instantiation of the entity 2573251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // to which they refer. 25741028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor if (Var->getTemplateSpecializationKind() 2575251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor == TSK_ExplicitInstantiationDeclaration) 2576251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return; 25771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2578f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor // If we already have a definition, we're done. 2579f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor if (Var->getDefinition()) 2580f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor return; 2581f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor 25827caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor InstantiatingTemplate Inst(*this, PointOfInstantiation, Var); 25837caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Inst) 25847caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return; 25851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25867caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // If we're performing recursive template instantiation, create our own 25877caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // queue of pending implicit instantiations that we will instantiate later, 25887caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // while we're still within our own instantiation context. 25898155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky llvm::SmallVector<VTableUse, 16> SavedVTableUses; 259062c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; 25918155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky if (Recursive) { 25928155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky VTableUses.swap(SavedVTableUses); 259362c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 25948155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky } 25951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25967caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Enter the scope of this instantiation. We don't use 25977caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // PushDeclContext because we don't have a scope. 2598f5ba7e089daadcd60b0f6e31d932be8bb6045281John McCall ContextRAII previousContext(*this, Var->getDeclContext()); 25991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26001028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor VarDecl *OldVar = Var; 2601ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall Var = cast_or_null<VarDecl>(SubstDecl(Def, Var->getDeclContext(), 26026bb4dcb412d53d05a80017df81d41e447e2aa3eaNico Weber getTemplateInstantiationArgs(Var))); 2603f5ba7e089daadcd60b0f6e31d932be8bb6045281John McCall 2604f5ba7e089daadcd60b0f6e31d932be8bb6045281John McCall previousContext.pop(); 26057caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 26067caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Var) { 2607583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor MemberSpecializationInfo *MSInfo = OldVar->getMemberSpecializationInfo(); 2608583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 2609583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor Var->setTemplateSpecializationKind(MSInfo->getTemplateSpecializationKind(), 2610583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor MSInfo->getPointOfInstantiation()); 26117caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor DeclGroupRef DG(Var); 26127caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Consumer.HandleTopLevelDecl(DG); 26137caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 26141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26157caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Recursive) { 26168155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky // Define any newly required vtables. 26178155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky DefineUsedVTables(); 26188155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky 26197caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Instantiate any pending implicit instantiations found during the 26201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // instantiation of this template. 262162c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PerformPendingInstantiations(); 26221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26238155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky // Restore the set of pending vtables. 26248155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky assert(VTableUses.empty() && 26258155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky "VTableUses should be empty before it is discarded, " 26268155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky "while instantiating static data member."); 26278155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky VTableUses.swap(SavedVTableUses); 26288155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky 26297caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Restore the set of pending implicit instantiations. 26308155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky assert(PendingInstantiations.empty() && 26318155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky "PendingInstantiations should be empty before it is discarded, " 26328155910a192dafa423d6b932b7d127d48e4641e8Nick Lewycky "while instantiating static data member."); 263362c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 26341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2635a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor} 2636815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2637090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlssonvoid 2638090253155017b7eec031bbd7bf07824a448e1d7aAnders CarlssonSema::InstantiateMemInitializers(CXXConstructorDecl *New, 2639090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson const CXXConstructorDecl *Tmpl, 2640090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson const MultiLevelTemplateArgumentList &TemplateArgs) { 26411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2642090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson llvm::SmallVector<MemInitTy*, 4> NewInits; 26439db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor bool AnyErrors = false; 26449db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor 2645090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // Instantiate all the initializers. 2646090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson for (CXXConstructorDecl::init_const_iterator Inits = Tmpl->init_begin(), 264772f6d678c8de9f3a770e8ae5fc4979abf3940668Douglas Gregor InitsEnd = Tmpl->init_end(); 264872f6d678c8de9f3a770e8ae5fc4979abf3940668Douglas Gregor Inits != InitsEnd; ++Inits) { 2649cbb67480094b3bcb5b715acd827cbad55e2a204cSean Hunt CXXCtorInitializer *Init = *Inits; 2650090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 2651030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth // Only instantiate written initializers, let Sema re-construct implicit 2652030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth // ones. 2653030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth if (!Init->isWritten()) 2654030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth continue; 2655030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth 26566b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation LParenLoc, RParenLoc; 2657ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall ASTOwningVector<Expr*> NewArgs(*this); 26581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26593fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor SourceLocation EllipsisLoc; 26603fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26613fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (Init->isPackExpansion()) { 26623fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // This is a pack expansion. We should expand it now. 26633fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TypeLoc BaseTL = Init->getBaseClassInfo()->getTypeLoc(); 26643fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; 26653fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor collectUnexpandedParameterPacks(BaseTL, Unexpanded); 26663fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor bool ShouldExpand = false; 2667d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor bool RetainExpansion = false; 2668cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions; 26693fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (CheckParameterPacksForExpansion(Init->getEllipsisLoc(), 26703fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor BaseTL.getSourceRange(), 26713fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Unexpanded.data(), 26723fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Unexpanded.size(), 26733fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TemplateArgs, ShouldExpand, 2674d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor RetainExpansion, 26753fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NumExpansions)) { 26763fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 26773fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->setInvalidDecl(); 26783fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor continue; 26793fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 26803fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor assert(ShouldExpand && "Partial instantiation of base initializer?"); 26813fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26823fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Loop over all of the arguments in the argument pack(s), 2683cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor for (unsigned I = 0; I != *NumExpansions; ++I) { 26843fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(*this, I); 26853fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26863fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Instantiate the initializer. 26873fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (InstantiateInitializer(*this, Init->getInit(), TemplateArgs, 26883fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor LParenLoc, NewArgs, RParenLoc)) { 26893fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 26903fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor break; 26913fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 26923fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26933fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Instantiate the base type. 26943fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TypeSourceInfo *BaseTInfo = SubstType(Init->getBaseClassInfo(), 26953fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TemplateArgs, 26963fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Init->getSourceLocation(), 26973fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->getDeclName()); 26983fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (!BaseTInfo) { 26993fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 27003fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor break; 27013fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 27023fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 27033fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Build the initializer. 27043fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor MemInitResult NewInit = BuildBaseInitializer(BaseTInfo->getType(), 27053fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor BaseTInfo, 27063fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor (Expr **)NewArgs.data(), 27073fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NewArgs.size(), 27083fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Init->getLParenLoc(), 27093fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Init->getRParenLoc(), 27103fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->getParent(), 27113fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor SourceLocation()); 27123fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (NewInit.isInvalid()) { 27133fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 27143fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor break; 27153fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 27163fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 27173fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NewInits.push_back(NewInit.get()); 27183fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NewArgs.clear(); 27193fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 27203fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 27213fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor continue; 27223fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 27233fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 27246b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // Instantiate the initializer. 27256b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (InstantiateInitializer(*this, Init->getInit(), TemplateArgs, 2726a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor LParenLoc, NewArgs, RParenLoc)) { 27276b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor AnyErrors = true; 27286b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor continue; 2729090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 27309db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor 2731090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson MemInitResult NewInit; 2732090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson if (Init->isBaseInitializer()) { 2733a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *BaseTInfo = SubstType(Init->getBaseClassInfo(), 2734802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor TemplateArgs, 2735802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor Init->getSourceLocation(), 2736802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor New->getDeclName()); 2737a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!BaseTInfo) { 27389db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor AnyErrors = true; 2739802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor New->setInvalidDecl(); 2740802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor continue; 2741802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor } 2742802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor 2743a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall NewInit = BuildBaseInitializer(BaseTInfo->getType(), BaseTInfo, 27441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (Expr **)NewArgs.data(), 2745090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewArgs.size(), 2746802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor Init->getLParenLoc(), 2747090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson Init->getRParenLoc(), 27483fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->getParent(), 27493fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor EllipsisLoc); 2750090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } else if (Init->isMemberInitializer()) { 2751b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor FieldDecl *Member = cast_or_null<FieldDecl>(FindInstantiatedDecl( 275200eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getMemberLocation(), 275300eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getMember(), 275400eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet TemplateArgs)); 2755b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!Member) { 2756b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor AnyErrors = true; 2757b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor New->setInvalidDecl(); 2758b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor continue; 2759b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor } 27601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NewInit = BuildMemberInitializer(Member, (Expr **)NewArgs.data(), 2762090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewArgs.size(), 2763090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson Init->getSourceLocation(), 2764802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor Init->getLParenLoc(), 2765090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson Init->getRParenLoc()); 276600eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet } else if (Init->isIndirectMemberInitializer()) { 276700eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet IndirectFieldDecl *IndirectMember = 2768b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor cast_or_null<IndirectFieldDecl>(FindInstantiatedDecl( 276900eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getMemberLocation(), 277000eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getIndirectMember(), TemplateArgs)); 277100eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet 2772b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!IndirectMember) { 2773b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor AnyErrors = true; 2774b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor New->setInvalidDecl(); 2775b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor continue; 2776b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor } 2777b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor 277800eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet NewInit = BuildMemberInitializer(IndirectMember, (Expr **)NewArgs.data(), 277900eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet NewArgs.size(), 278000eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getSourceLocation(), 278100eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getLParenLoc(), 278200eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getRParenLoc()); 2783090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 2784090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 27859db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor if (NewInit.isInvalid()) { 27869db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor AnyErrors = true; 2787090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson New->setInvalidDecl(); 27889db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor } else { 2789090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // FIXME: It would be nice if ASTOwningVector had a release function. 2790090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewArgs.take(); 27911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2792090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewInits.push_back((MemInitTy *)NewInit.get()); 2793090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 2794090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 27951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2796090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // Assign all the initializers to the new constructor. 2797d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ActOnMemInitializers(New, 2798090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson /*FIXME: ColonLoc */ 2799090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson SourceLocation(), 28009db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor NewInits.data(), NewInits.size(), 28019db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor AnyErrors); 2802090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson} 2803090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 280452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall// TODO: this could be templated if the various decl types used the 280552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall// same method name. 280652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(ClassTemplateDecl *Pattern, 280752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall ClassTemplateDecl *Instance) { 280852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 280952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 281052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 281152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 281252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 281352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberTemplate(); 281452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 281552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 281652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 281752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 281852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 28190d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregorstatic bool isInstantiationOf(FunctionTemplateDecl *Pattern, 28200d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor FunctionTemplateDecl *Instance) { 28210d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor Pattern = Pattern->getCanonicalDecl(); 28220d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 28230d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor do { 28240d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor Instance = Instance->getCanonicalDecl(); 28250d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor if (Pattern == Instance) return true; 28260d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor Instance = Instance->getInstantiatedFromMemberTemplate(); 28270d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor } while (Instance); 28280d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 28290d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor return false; 28300d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor} 28310d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 2832ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregorstatic bool 2833ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas GregorisInstantiationOf(ClassTemplatePartialSpecializationDecl *Pattern, 2834ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplatePartialSpecializationDecl *Instance) { 2835ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Pattern 2836ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = cast<ClassTemplatePartialSpecializationDecl>(Pattern->getCanonicalDecl()); 2837ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor do { 2838ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Instance = cast<ClassTemplatePartialSpecializationDecl>( 2839ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Instance->getCanonicalDecl()); 2840ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (Pattern == Instance) 2841ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return true; 2842ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Instance = Instance->getInstantiatedFromMember(); 2843ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor } while (Instance); 2844ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2845ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return false; 2846ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor} 2847ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 284852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(CXXRecordDecl *Pattern, 284952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall CXXRecordDecl *Instance) { 285052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 285152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 285252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 285352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 285452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 285552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberClass(); 285652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 285752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 285852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 285952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 286052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 286152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(FunctionDecl *Pattern, 286252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall FunctionDecl *Instance) { 286352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 286452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 286552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 286652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 286752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 286852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberFunction(); 286952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 287052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 287152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 287252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 287352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 287452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(EnumDecl *Pattern, 287552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall EnumDecl *Instance) { 287652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 287752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 287852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 287952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 288052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 288152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberEnum(); 288252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 288352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 288452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 288552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 288652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 2887ed97649e9574b9d854fa4d6109c9333ae0993554John McCallstatic bool isInstantiationOf(UsingShadowDecl *Pattern, 2888ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Instance, 2889ed97649e9574b9d854fa4d6109c9333ae0993554John McCall ASTContext &C) { 2890ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingShadowDecl(Instance) == Pattern; 2891ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 2892ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2893ed97649e9574b9d854fa4d6109c9333ae0993554John McCallstatic bool isInstantiationOf(UsingDecl *Pattern, 2894ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingDecl *Instance, 2895ed97649e9574b9d854fa4d6109c9333ae0993554John McCall ASTContext &C) { 2896ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingDecl(Instance) == Pattern; 2897ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 2898ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 28997ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallstatic bool isInstantiationOf(UnresolvedUsingValueDecl *Pattern, 29007ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall UsingDecl *Instance, 29017ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall ASTContext &C) { 2902ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingDecl(Instance) == Pattern; 29037ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall} 29047ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 29057ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallstatic bool isInstantiationOf(UnresolvedUsingTypenameDecl *Pattern, 29060d8df780aef1acda5962347a32591efc629b6748Anders Carlsson UsingDecl *Instance, 29070d8df780aef1acda5962347a32591efc629b6748Anders Carlsson ASTContext &C) { 2908ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingDecl(Instance) == Pattern; 29090d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 29100d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 291152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOfStaticDataMember(VarDecl *Pattern, 291252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall VarDecl *Instance) { 291352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall assert(Instance->isStaticDataMember()); 291452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 291552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 291652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 291752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 291852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 291952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 292052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromStaticDataMember(); 292152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 292252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 292352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 292452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 292552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 2926ed97649e9574b9d854fa4d6109c9333ae0993554John McCall// Other is the prospective instantiation 2927ed97649e9574b9d854fa4d6109c9333ae0993554John McCall// D is the prospective pattern 2928815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregorstatic bool isInstantiationOf(ASTContext &Ctx, NamedDecl *D, Decl *Other) { 29290d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (D->getKind() != Other->getKind()) { 29307ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall if (UnresolvedUsingTypenameDecl *UUD 29317ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall = dyn_cast<UnresolvedUsingTypenameDecl>(D)) { 29327ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { 29337ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall return isInstantiationOf(UUD, UD, Ctx); 29347ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall } 29357ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall } 29367ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 29377ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall if (UnresolvedUsingValueDecl *UUD 29387ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall = dyn_cast<UnresolvedUsingValueDecl>(D)) { 29390d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { 29400d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return isInstantiationOf(UUD, UD, Ctx); 29410d8df780aef1acda5962347a32591efc629b6748Anders Carlsson } 29420d8df780aef1acda5962347a32591efc629b6748Anders Carlsson } 2943815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 29440d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return false; 29450d8df780aef1acda5962347a32591efc629b6748Anders Carlsson } 29461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 294752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Other)) 294852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<CXXRecordDecl>(D), Record); 29491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 295052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Other)) 295152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<FunctionDecl>(D), Function); 2952815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 295352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (EnumDecl *Enum = dyn_cast<EnumDecl>(Other)) 295452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<EnumDecl>(D), Enum); 2955815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 29567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(Other)) 295752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Var->isStaticDataMember()) 295852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOfStaticDataMember(cast<VarDecl>(D), Var); 295952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 296052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (ClassTemplateDecl *Temp = dyn_cast<ClassTemplateDecl>(Other)) 296152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<ClassTemplateDecl>(D), Temp); 2962a5bf7f13d7772b164750997f95ab18487bbc4114Douglas Gregor 29630d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor if (FunctionTemplateDecl *Temp = dyn_cast<FunctionTemplateDecl>(Other)) 29640d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor return isInstantiationOf(cast<FunctionTemplateDecl>(D), Temp); 29650d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 2966ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (ClassTemplatePartialSpecializationDecl *PartialSpec 2967ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = dyn_cast<ClassTemplatePartialSpecializationDecl>(Other)) 2968ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return isInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(D), 2969ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor PartialSpec); 2970ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2971d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (FieldDecl *Field = dyn_cast<FieldDecl>(Other)) { 2972d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (!Field->getDeclName()) { 2973d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson // This is an unnamed field. 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Ctx.getInstantiatedFromUnnamedFieldDecl(Field) == 2975d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson cast<FieldDecl>(D); 2976d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson } 2977d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson } 29781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2979ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (UsingDecl *Using = dyn_cast<UsingDecl>(Other)) 2980ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return isInstantiationOf(cast<UsingDecl>(D), Using, Ctx); 2981ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2982ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (UsingShadowDecl *Shadow = dyn_cast<UsingShadowDecl>(Other)) 2983ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return isInstantiationOf(cast<UsingShadowDecl>(D), Shadow, Ctx); 2984ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2985815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return D->getDeclName() && isa<NamedDecl>(Other) && 2986815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor D->getDeclName() == cast<NamedDecl>(Other)->getDeclName(); 2987815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor} 2988815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2989815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregortemplate<typename ForwardIterator> 29901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic NamedDecl *findInstantiationOf(ASTContext &Ctx, 2991815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor NamedDecl *D, 2992815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor ForwardIterator first, 2993815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor ForwardIterator last) { 2994815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor for (; first != last; ++first) 2995815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor if (isInstantiationOf(Ctx, D, *first)) 2996815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return cast<NamedDecl>(*first); 2997815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2998815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return 0; 2999815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor} 3000815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 300102cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// \brief Finds the instantiation of the given declaration context 300202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// within the current instantiation. 300302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// 300402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// \returns NULL if there was an error 30057c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas GregorDeclContext *Sema::FindInstantiatedContext(SourceLocation Loc, DeclContext* DC, 3006e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs) { 300702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall if (NamedDecl *D = dyn_cast<NamedDecl>(DC)) { 30087c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor Decl* ID = FindInstantiatedDecl(Loc, D, TemplateArgs); 300902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall return cast_or_null<DeclContext>(ID); 301002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall } else return DC; 301102cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall} 301202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 3013ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// \brief Find the instantiation of the given declaration within the 3014ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// current instantiation. 3015815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 3016815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// This routine is intended to be used when \p D is a declaration 3017815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// referenced from within a template, that needs to mapped into the 3018815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// corresponding declaration within an instantiation. For example, 3019815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// given: 3020815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 3021815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// \code 3022815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// template<typename T> 3023815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// struct X { 3024815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// enum Kind { 3025815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// KnownValue = sizeof(T) 3026815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// }; 3027815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 3028815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// bool getKind() const { return KnownValue; } 3029815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// }; 3030815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 3031815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// template struct X<int>; 3032815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// \endcode 3033815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 3034815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// In the instantiation of X<int>::getKind(), we need to map the 3035815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// EnumConstantDecl for KnownValue (which refers to 3036815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// X<T>::<Kind>::KnownValue) to its instantiation 3037ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// (X<int>::<Kind>::KnownValue). InstantiateCurrentDeclRef() performs 3038ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// this mapping from within the instantiation of X<int>. 30397c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas GregorNamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D, 3040e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs) { 3041815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor DeclContext *ParentDC = D->getDeclContext(); 3042550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor if (isa<ParmVarDecl>(D) || isa<NonTypeTemplateParmDecl>(D) || 30436d3e627dacdb2f749195635ab587fd067ef813e1Douglas Gregor isa<TemplateTypeParmDecl>(D) || isa<TemplateTemplateParmDecl>(D) || 3044766724566289e6951a90b6483f0d3e22fe4b9b52John McCall (ParentDC->isFunctionOrMethod() && ParentDC->isDependentContext())) { 30452bba76b0ec4c2f2134eebb1a2bbfe102f36c2f6eDouglas Gregor // D is a local of some kind. Look into the map of local 30462bba76b0ec4c2f2134eebb1a2bbfe102f36c2f6eDouglas Gregor // declarations to their instantiations. 3047d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack; 3048d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner llvm::PointerUnion<Decl *, DeclArgumentPack *> *Found 3049d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner = CurrentInstantiationScope->findInstantiationOf(D); 3050d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner 305157ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner if (Found) { 305257ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner if (Decl *FD = Found->dyn_cast<Decl *>()) 305357ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return cast<NamedDecl>(FD); 305457ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 305557ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner unsigned PackIdx = ArgumentPackSubstitutionIndex; 305657ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return cast<NamedDecl>((*Found->get<DeclArgumentPack *>())[PackIdx]); 305757ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner } 305857ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 305957ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner // If we didn't find the decl, then we must have a label decl that hasn't 306057ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner // been found yet. Lazily instantiate it and return it now. 306157ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner assert(isa<LabelDecl>(D)); 306257ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 306357ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner Decl *Inst = SubstDecl(D, CurContext, TemplateArgs); 306457ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner assert(Inst && "Failed to instantiate label??"); 3065d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner 306657ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner CurrentInstantiationScope->InstantiatedLocal(D, Inst); 306757ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return cast<LabelDecl>(Inst); 30682bba76b0ec4c2f2134eebb1a2bbfe102f36c2f6eDouglas Gregor } 3069815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 3070e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(D)) { 3071e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!Record->isDependentContext()) 3072e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor return D; 3073e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 30748b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // If the RecordDecl is actually the injected-class-name or a 30758b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // "templated" declaration for a class template, class template 30768b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // partial specialization, or a member class of a class template, 30778b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // substitute into the injected-class-name of the class template 30788b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // or partial specialization to find the new DeclContext. 3079e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor QualType T; 3080e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor ClassTemplateDecl *ClassTemplate = Record->getDescribedClassTemplate(); 3081e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 3082e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (ClassTemplate) { 308324bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor T = ClassTemplate->getInjectedClassNameSpecialization(); 3084e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor } else if (ClassTemplatePartialSpecializationDecl *PartialSpec 3085e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor = dyn_cast<ClassTemplatePartialSpecializationDecl>(Record)) { 3086e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor ClassTemplate = PartialSpec->getSpecializedTemplate(); 30873cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 30883cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // If we call SubstType with an InjectedClassNameType here we 30893cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // can end up in an infinite loop. 30903cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall T = Context.getTypeDeclType(Record); 30913cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(T) && 30923cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall "type of partial specialization is not an InjectedClassNameType"); 309331f17ecbef57b5679c017c375db330546b7b5145John McCall T = cast<InjectedClassNameType>(T)->getInjectedSpecializationType(); 30943cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 3095e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 3096e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!T.isNull()) { 30978b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // Substitute into the injected-class-name to get the type 30988b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // corresponding to the instantiation we want, which may also be 30998b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // the current instantiation (if we're in a template 31008b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // definition). This substitution should never fail, since we 31018b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // know we can instantiate the injected-class-name or we 31028b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // wouldn't have gotten to the injected-class-name! 31038b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor 31048b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // FIXME: Can we use the CurrentInstantiationScope to avoid this 31058b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // extra instantiation in the common case? 3106b46ae3964ba02535276c71332396e9a7bad2dfa5Douglas Gregor T = SubstType(T, TemplateArgs, Loc, DeclarationName()); 3107e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor assert(!T.isNull() && "Instantiation of injected-class-name cannot fail."); 3108e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 3109e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!T->isDependentType()) { 3110e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor assert(T->isRecordType() && "Instantiation must produce a record type"); 3111e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor return T->getAs<RecordType>()->getDecl(); 3112e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor } 3113e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 31148b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // We are performing "partial" template instantiation to create 31158b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // the member declarations for the members of a class template 31168b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // specialization. Therefore, D is actually referring to something 31178b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // in the current instantiation. Look through the current 31188b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // context, which contains actual instantiations, to find the 31198b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // instantiation of the "current instantiation" that D refers 31208b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // to. 31218b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor bool SawNonDependentContext = false; 31221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (DeclContext *DC = CurContext; !DC->isFileContext(); 312352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall DC = DC->getParent()) { 31241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ClassTemplateSpecializationDecl *Spec 31258b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(DC)) 3126e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (isInstantiationOf(ClassTemplate, 3127e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor Spec->getSpecializedTemplate())) 312852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return Spec; 31298b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor 31308b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor if (!DC->isDependentContext()) 31318b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor SawNonDependentContext = true; 313252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } 313352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 31348b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // We're performing "instantiation" of a member of the current 31358b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // instantiation while we are type-checking the 31368b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // definition. Compute the declaration context and return that. 31378b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor assert(!SawNonDependentContext && 31388b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor "No dependent context while instantiating record"); 31398b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor DeclContext *DC = computeDeclContext(T); 31408b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor assert(DC && 314152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall "Unable to find declaration for the current instantiation"); 31428b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor return cast<CXXRecordDecl>(DC); 314352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } 31448b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor 3145e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor // Fall through to deal with other dependent record types (e.g., 3146e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor // anonymous unions in class templates). 3147e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor } 314852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 3149e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!ParentDC->isDependentContext()) 3150e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor return D; 3151e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 31527c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor ParentDC = FindInstantiatedContext(Loc, ParentDC, TemplateArgs); 31531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!ParentDC) 315444c73848d5d5bd34c05582dc8398a20bea7cd971Douglas Gregor return 0; 31551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3156815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor if (ParentDC != D->getDeclContext()) { 3157815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // We performed some kind of instantiation in the parent context, 3158815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // so now we need to look into the instantiated parent context to 3159815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // find the instantiation of the declaration D. 31607c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor 31613cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // If our context used to be dependent, we may need to instantiate 31623cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // it before performing lookup into that context. 3163eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor bool IsBeingInstantiated = false; 31643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (CXXRecordDecl *Spec = dyn_cast<CXXRecordDecl>(ParentDC)) { 31657c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor if (!Spec->isDependentContext()) { 31667c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor QualType T = Context.getTypeDeclType(Spec); 31673cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const RecordType *Tag = T->getAs<RecordType>(); 31683cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(Tag && "type of non-dependent record is not a RecordType"); 3169eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor if (Tag->isBeingDefined()) 3170eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor IsBeingInstantiated = true; 31713cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (!Tag->isBeingDefined() && 31723cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall RequireCompleteType(Loc, T, diag::err_incomplete_type)) 31733cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return 0; 3174a43064c7b721a51ab2c0d0ccdc4f84064aa7ceccDouglas Gregor 3175a43064c7b721a51ab2c0d0ccdc4f84064aa7ceccDouglas Gregor ParentDC = Tag->getDecl(); 31767c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor } 31777c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor } 31787c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor 3179815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor NamedDecl *Result = 0; 3180815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor if (D->getDeclName()) { 318117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis DeclContext::lookup_result Found = ParentDC->lookup(D->getDeclName()); 3182815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor Result = findInstantiationOf(Context, D, Found.first, Found.second); 3183815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor } else { 3184815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // Since we don't have a name for the entity we're looking for, 3185815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // our only option is to walk through all of the declarations to 3186815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // find that name. This will occur in a few cases: 3187815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // 3188815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // - anonymous struct/union within a template 3189815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // - unnamed class/struct/union/enum within a template 3190815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // 3191815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // FIXME: Find a better way to find these instantiations! 31921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = findInstantiationOf(Context, D, 319317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ParentDC->decls_begin(), 319417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ParentDC->decls_end()); 3195815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor } 31961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3197eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor if (!Result) { 3198eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor if (isa<UsingShadowDecl>(D)) { 3199eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // UsingShadowDecls can instantiate to nothing because of using hiding. 3200eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } else if (Diags.hasErrorOccurred()) { 3201eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // We've already complained about something, so most likely this 3202eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // declaration failed to instantiate. There's no point in complaining 3203eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // further, since this is normal in invalid code. 3204eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } else if (IsBeingInstantiated) { 3205eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // The class in which this member exists is currently being 3206eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // instantiated, and we haven't gotten around to instantiating this 3207eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // member yet. This can happen when the code uses forward declarations 3208eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // of member classes, and introduces ordering dependencies via 3209eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // template instantiation. 3210eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor Diag(Loc, diag::err_member_not_yet_instantiated) 3211eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor << D->getDeclName() 3212eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor << Context.getTypeDeclType(cast<CXXRecordDecl>(ParentDC)); 3213eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor Diag(D->getLocation(), diag::note_non_instantiated_member_here); 3214eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } else { 3215eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // We should have found something, but didn't. 3216eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor llvm_unreachable("Unable to find instantiation of declaration!"); 3217eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } 3218eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } 3219eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor 3220815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor D = Result; 3221815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor } 3222815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 3223815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return D; 3224815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor} 3225d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor 32261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Performs template instantiation for all implicit template 3227d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor/// instantiations we have seen until this point. 32288155910a192dafa423d6b932b7d127d48e4641e8Nick Lewyckyvoid Sema::PerformPendingInstantiations(bool LocalOnly) { 322960406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor while (!PendingLocalImplicitInstantiations.empty() || 323062c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth (!LocalOnly && !PendingInstantiations.empty())) { 323160406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor PendingImplicitInstantiation Inst; 323260406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor 323360406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor if (PendingLocalImplicitInstantiations.empty()) { 323462c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth Inst = PendingInstantiations.front(); 323562c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.pop_front(); 323660406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor } else { 323760406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor Inst = PendingLocalImplicitInstantiations.front(); 323860406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor PendingLocalImplicitInstantiations.pop_front(); 323960406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor } 32401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Instantiate function definitions 32427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Inst.first)) { 3243f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall PrettyDeclStackTraceEntry CrashInfo(*this, Function, SourceLocation(), 3244f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall "instantiating function definition"); 324558e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth bool DefinitionRequired = Function->getTemplateSpecializationKind() == 324658e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth TSK_ExplicitInstantiationDefinition; 324758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth InstantiateFunctionDefinition(/*FIXME:*/Inst.second, Function, true, 324858e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth DefinitionRequired); 32497caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor continue; 32507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 32511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Instantiate static data member definitions. 32537caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor VarDecl *Var = cast<VarDecl>(Inst.first); 32547caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member?"); 3255c17fb7bd9a06b027c792c7dfad7e9fa430277affAnders Carlsson 3256291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // Don't try to instantiate declarations if the most recent redeclaration 3257291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // is invalid. 3258291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth if (Var->getMostRecentDeclaration()->isInvalidDecl()) 3259291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth continue; 3260291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth 3261291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // Check if the most recent declaration has changed the specialization kind 3262291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // and removed the need for implicit instantiation. 3263291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth switch (Var->getMostRecentDeclaration()->getTemplateSpecializationKind()) { 3264291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_Undeclared: 3265291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth assert(false && "Cannot instantitiate an undeclared specialization."); 3266291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_ExplicitInstantiationDeclaration: 3267291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_ExplicitSpecialization: 326858e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth continue; // No longer need to instantiate this type. 326958e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth case TSK_ExplicitInstantiationDefinition: 327058e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth // We only need an instantiation if the pending instantiation *is* the 327158e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth // explicit instantiation. 327258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth if (Var != Var->getMostRecentDeclaration()) continue; 3273291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_ImplicitInstantiation: 3274291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth break; 3275291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth } 3276291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth 3277f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall PrettyDeclStackTraceEntry CrashInfo(*this, Var, Var->getLocation(), 3278f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall "instantiating static data member " 3279f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall "definition"); 32801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 328158e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth bool DefinitionRequired = Var->getTemplateSpecializationKind() == 328258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth TSK_ExplicitInstantiationDefinition; 328358e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth InstantiateStaticDataMemberDefinition(/*FIXME:*/Inst.second, Var, true, 328458e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth DefinitionRequired); 3285d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor } 3286d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor} 32870c01d18094100db92d38daa923c95661512db203John McCall 32880c01d18094100db92d38daa923c95661512db203John McCallvoid Sema::PerformDependentDiagnostics(const DeclContext *Pattern, 32890c01d18094100db92d38daa923c95661512db203John McCall const MultiLevelTemplateArgumentList &TemplateArgs) { 32900c01d18094100db92d38daa923c95661512db203John McCall for (DeclContext::ddiag_iterator I = Pattern->ddiag_begin(), 32910c01d18094100db92d38daa923c95661512db203John McCall E = Pattern->ddiag_end(); I != E; ++I) { 32920c01d18094100db92d38daa923c95661512db203John McCall DependentDiagnostic *DD = *I; 32930c01d18094100db92d38daa923c95661512db203John McCall 32940c01d18094100db92d38daa923c95661512db203John McCall switch (DD->getKind()) { 32950c01d18094100db92d38daa923c95661512db203John McCall case DependentDiagnostic::Access: 32960c01d18094100db92d38daa923c95661512db203John McCall HandleDependentAccessCheck(*DD, TemplateArgs); 32970c01d18094100db92d38daa923c95661512db203John McCall break; 32980c01d18094100db92d38daa923c95661512db203John McCall } 32990c01d18094100db92d38daa923c95661512db203John McCall } 33000c01d18094100db92d38daa923c95661512db203John McCall} 3301