SemaTemplateInstantiateDecl.cpp revision fb44de956f27875def889482b5393475060392af
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 131162e1c1b487352434552147967c3dd296ebee2f7Richard SmithDecl *TemplateDeclInstantiator::VisitTypedefNameDecl(TypedefNameDecl *D, 132162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypeAlias) { 1338dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor bool Invalid = false; 134a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = D->getTypeSourceInfo(); 135836adf6771d5170d936599dfcce21687e37e9bbfDouglas Gregor if (DI->getType()->isDependentType() || 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()); 18117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Owner->addDecl(Typedef); 1821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1838dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Typedef; 1848dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 1858dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 186162e1c1b487352434552147967c3dd296ebee2f7Richard SmithDecl *TemplateDeclInstantiator::VisitTypedefDecl(TypedefDecl *D) { 187162e1c1b487352434552147967c3dd296ebee2f7Richard Smith return VisitTypedefNameDecl(D, /*IsTypeAlias=*/false); 188162e1c1b487352434552147967c3dd296ebee2f7Richard Smith} 189162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 190162e1c1b487352434552147967c3dd296ebee2f7Richard SmithDecl *TemplateDeclInstantiator::VisitTypeAliasDecl(TypeAliasDecl *D) { 191162e1c1b487352434552147967c3dd296ebee2f7Richard Smith return VisitTypedefNameDecl(D, /*IsTypeAlias=*/true); 192162e1c1b487352434552147967c3dd296ebee2f7Richard Smith} 193162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 1946b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \brief Instantiate an initializer, breaking it into separate 1956b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// initialization arguments. 1966b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 1976b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param S The semantic analysis object. 1986b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 1996b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param Init The initializer to instantiate. 2006b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2016b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param TemplateArgs Template arguments to be substituted into the 2026b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// initializer. 2036b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2046b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \param NewArgs Will be filled in with the instantiation arguments. 2056b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// 2066b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor/// \returns true if an error occurred, false otherwise 2076b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregorstatic bool InstantiateInitializer(Sema &S, Expr *Init, 2086b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs, 2096b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation &LParenLoc, 2107663f396651716c82280f8fdcf97ad8e27c1ce5aNick Lewycky ASTOwningVector<Expr*> &NewArgs, 2116b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation &RParenLoc) { 2126b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor NewArgs.clear(); 2136b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor LParenLoc = SourceLocation(); 2146b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor RParenLoc = SourceLocation(); 2156b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2166b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (!Init) 2176b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor return false; 2186b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2194765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall if (ExprWithCleanups *ExprTemp = dyn_cast<ExprWithCleanups>(Init)) 2206b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Init = ExprTemp->getSubExpr(); 2216b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2226b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor while (CXXBindTemporaryExpr *Binder = dyn_cast<CXXBindTemporaryExpr>(Init)) 2236b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Init = Binder->getSubExpr(); 2246b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2256b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Init)) 2266b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Init = ICE->getSubExprAsWritten(); 2276b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2286b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) { 2296b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor LParenLoc = ParenList->getLParenLoc(); 2306b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor RParenLoc = ParenList->getRParenLoc(); 23191fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor return S.SubstExprs(ParenList->getExprs(), ParenList->getNumExprs(), 23291fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor true, TemplateArgs, NewArgs); 2336b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor } 2346b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2356b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (CXXConstructExpr *Construct = dyn_cast<CXXConstructExpr>(Init)) { 23628329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor if (!isa<CXXTemporaryObjectExpr>(Construct)) { 23791fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor if (S.SubstExprs(Construct->getArgs(), Construct->getNumArgs(), true, 23891fc73e7ffb1fa1da0276518359d3bd4ed11c843Douglas Gregor TemplateArgs, NewArgs)) 23928329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor return true; 24028329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor 24128329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor // FIXME: Fake locations! 24228329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor LParenLoc = S.PP.getLocForEndOfToken(Init->getLocStart()); 243a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor RParenLoc = LParenLoc; 24428329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor return false; 24528329e511854fdd3b31561b2690f91f9e6a6402eDouglas Gregor } 2466b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor } 2476b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 24860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = S.SubstExpr(Init, TemplateArgs); 2496b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (Result.isInvalid()) 2506b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor return true; 2516b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2526b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor NewArgs.push_back(Result.takeAs<Expr>()); 2536b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor return false; 2546b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor} 2556b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor 2563d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas GregorDecl *TemplateDeclInstantiator::VisitVarDecl(VarDecl *D) { 2579901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor // If this is the variable for an anonymous struct or union, 2589901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor // instantiate the anonymous struct/union type first. 2599901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (const RecordType *RecordTy = D->getType()->getAs<RecordType>()) 2609901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (RecordTy->getDecl()->isAnonymousStructOrUnion()) 2619901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (!VisitCXXRecordDecl(cast<CXXRecordDecl>(RecordTy->getDecl()))) 2629901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor return 0; 2639901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor 264ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall // Do substitution on the type of the declaration 265a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = SemaRef.SubstType(D->getTypeSourceInfo(), 2660a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall TemplateArgs, 2670a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall D->getTypeSpecStartLoc(), 2680a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall D->getDeclName()); 2690a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall if (!DI) 2703d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor return 0; 2713d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor 272c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor if (DI->getType()->isFunctionType()) { 273c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor SemaRef.Diag(D->getLocation(), diag::err_variable_instantiates_to_function) 274c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor << D->isStaticDataMember() << DI->getType(); 275c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor return 0; 276c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor } 277c6dbc3fa467e2355b678a6b717534928048efcb2Douglas Gregor 278b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor // Build the instantiated declaration 2793d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor VarDecl *Var = VarDecl::Create(SemaRef.Context, Owner, 280ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getInnerLocStart(), 2813d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor D->getLocation(), D->getIdentifier(), 2820a5fa06a688e1086ea553a24b42b9915996ed1f7John McCall DI->getType(), DI, 28316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClass(), 28416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClassAsWritten()); 2853d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor Var->setThreadSpecified(D->isThreadSpecified()); 2863d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor Var->setCXXDirectInitializer(D->hasCXXDirectInitializer()); 287ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith Var->setCXXForRangeDecl(D->isCXXForRangeDecl()); 2881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 289b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Substitute the nested name specifier, if any. 290b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(D, Var)) 291b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return 0; 292b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 2931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we are instantiating a static data member defined 2947caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // out-of-line, the instantiation will have the same lexical 2957caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // context (which will be a namespace scope) as the template. 2967caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (D->isOutOfLine()) 2977caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Var->setLexicalDeclContext(D->getLexicalDeclContext()); 2981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29946460a68f6508775e98c19b4bb8454bb471aac24John McCall Var->setAccess(D->getAccess()); 300c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor 3016b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis if (!D->isStaticDataMember()) { 302c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor Var->setUsed(D->isUsed(false)); 3036b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis Var->setReferenced(D->isReferenced()); 3046b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis } 3054469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor 306390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: In theory, we could have a previous declaration for variables that 307390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // are not static data members. 3083d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor bool Redeclaration = false; 3096826314938f8510cd1a6b03b5d032592456ae27bJohn McCall // FIXME: having to fake up a LookupResult is dumb. 3106826314938f8510cd1a6b03b5d032592456ae27bJohn McCall LookupResult Previous(SemaRef, Var->getDeclName(), Var->getLocation(), 311449d0a829007ea654912098e6a73134a2c529d61Douglas Gregor Sema::LookupOrdinaryName, Sema::ForRedeclaration); 31260c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor if (D->isStaticDataMember()) 31360c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor SemaRef.LookupQualifiedName(Previous, Owner, false); 3146826314938f8510cd1a6b03b5d032592456ae27bJohn McCall SemaRef.CheckVariableDeclaration(Var, Previous, Redeclaration); 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3167caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (D->isOutOfLine()) { 317ea7b4880bc07cd99b3994c2a95d722a06ab56594Abramo Bagnara if (!D->isStaticDataMember()) 318ea7b4880bc07cd99b3994c2a95d722a06ab56594Abramo Bagnara D->getLexicalDeclContext()->addDecl(Var); 3197caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Owner->makeDeclVisibleInContext(Var); 3207caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } else { 3217caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Owner->addDecl(Var); 322f7d72f5a4a3f0e610d77c6779ca3c21920a14bc7Douglas Gregor if (Owner->isFunctionOrMethod()) 323f7d72f5a4a3f0e610d77c6779ca3c21920a14bc7Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Var); 3247caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 3251d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Var); 3268dd0c5626455cdf94280783e85e413eed6cbf3d9Fariborz Jahanian 327251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Link instantiations of static data members back to the template from 328251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // which they were instantiated. 329251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor if (Var->isStaticDataMember()) 330251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor SemaRef.Context.setInstantiatedFromStaticDataMember(Var, D, 331cf3293eaeb3853d12cff47e648bbe835004e929fDouglas Gregor TSK_ImplicitInstantiation); 332251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 33360c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor if (Var->getAnyInitializer()) { 33460c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor // We already have an initializer in the class. 33560c93c9981c467738369702e7aa23fd58c2b6aacDouglas Gregor } else if (D->getInit()) { 3361f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (Var->isStaticDataMember() && !D->isOutOfLine()) 3371f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor SemaRef.PushExpressionEvaluationContext(Sema::Unevaluated); 3381f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor else 3391f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor SemaRef.PushExpressionEvaluationContext(Sema::PotentiallyEvaluated); 3401f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 3416b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // Instantiate the initializer. 3426b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation LParenLoc, RParenLoc; 343ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall ASTOwningVector<Expr*> InitArgs(SemaRef); 3446b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (!InstantiateInitializer(SemaRef, D->getInit(), TemplateArgs, LParenLoc, 345a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor InitArgs, RParenLoc)) { 34634b41d939a1328f484511c6002ba2456db879a29Richard Smith bool TypeMayContainAuto = true; 34707a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor // Attach the initializer to the declaration, if we have one. 34807a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor if (InitArgs.size() == 0) 34934b41d939a1328f484511c6002ba2456db879a29Richard Smith SemaRef.ActOnUninitializedDecl(Var, TypeMayContainAuto); 35007a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor else if (D->hasCXXDirectInitializer()) { 3516eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor // Add the direct initializer to the declaration. 352d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SemaRef.AddCXXDirectInitializerToDecl(Var, 3536b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor LParenLoc, 3546eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor move_arg(InitArgs), 35534b41d939a1328f484511c6002ba2456db879a29Richard Smith RParenLoc, 35634b41d939a1328f484511c6002ba2456db879a29Richard Smith TypeMayContainAuto); 35707a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor } else { 35807a77b4b1d1fa95930129541eff8b79558f5d80dDouglas Gregor assert(InitArgs.size() == 1); 3599ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Expr *Init = InitArgs.take()[0]; 36034b41d939a1328f484511c6002ba2456db879a29Richard Smith SemaRef.AddInitializerToDecl(Var, Init, false, TypeMayContainAuto); 36183ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor } 3626eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } else { 3636b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // FIXME: Not too happy about invalidating the declaration 3646b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // because of a bogus initializer. 3656b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor Var->setInvalidDecl(); 3666eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 3676eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor 3681f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor SemaRef.PopExpressionEvaluationContext(); 369ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith } else if ((!Var->isStaticDataMember() || Var->isOutOfLine()) && 370ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith !Var->isCXXForRangeDecl()) 371d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SemaRef.ActOnUninitializedDecl(Var, false); 3723d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor 3735764f613e61cb3183f3d7ceeafd23396de96ed16Douglas Gregor // Diagnose unused local variables. 3745764f613e61cb3183f3d7ceeafd23396de96ed16Douglas Gregor if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed()) 3755764f613e61cb3183f3d7ceeafd23396de96ed16Douglas Gregor SemaRef.DiagnoseUnusedDecl(Var); 376bbc6454bb98d6a6ecbaafa715222c5db834307f2Argyrios Kyrtzidis 3773d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor return Var; 3783d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor} 3793d7a12a50558c31d4351e923c15ab57688f4fdf2Douglas Gregor 3806206d53f67613958ae1b023aba337ebb46f11a8bAbramo BagnaraDecl *TemplateDeclInstantiator::VisitAccessSpecDecl(AccessSpecDecl *D) { 3816206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara AccessSpecDecl* AD 3826206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara = AccessSpecDecl::Create(SemaRef.Context, D->getAccess(), Owner, 3836206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara D->getAccessSpecifierLoc(), D->getColonLoc()); 3846206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara Owner->addHiddenDecl(AD); 3856206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara return AD; 3866206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara} 3876206d53f67613958ae1b023aba337ebb46f11a8bAbramo Bagnara 3888dbc2694424b4e842b1d5ea39744a137b58600c3Douglas GregorDecl *TemplateDeclInstantiator::VisitFieldDecl(FieldDecl *D) { 3898dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor bool Invalid = false; 390a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = D->getTypeSourceInfo(); 391836adf6771d5170d936599dfcce21687e37e9bbfDouglas Gregor if (DI->getType()->isDependentType() || 392836adf6771d5170d936599dfcce21687e37e9bbfDouglas Gregor DI->getType()->isVariablyModifiedType()) { 39307fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall DI = SemaRef.SubstType(DI, TemplateArgs, 39407fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall D->getLocation(), D->getDeclName()); 39507fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall if (!DI) { 396a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = D->getTypeSourceInfo(); 39707fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall Invalid = true; 39807fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall } else if (DI->getType()->isFunctionType()) { 3998dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // C++ [temp.arg.type]p3: 4008dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // If a declaration acquires a function type through a type 4018dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // dependent on a template-parameter and this causes a 4028dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // declaration that does not use the syntactic form of a 4038dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // function declarator to have function type, the program is 4048dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // ill-formed. 4058dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor SemaRef.Diag(D->getLocation(), diag::err_field_instantiates_to_function) 40607fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall << DI->getType(); 4078dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Invalid = true; 4088dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 409b4eeaff1595b7d0a8fbc2b3c8bec7dc63f48b7fdDouglas Gregor } else { 410b4eeaff1595b7d0a8fbc2b3c8bec7dc63f48b7fdDouglas Gregor SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); 4118dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 4128dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 4138dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Expr *BitWidth = D->getBitWidth(); 4148dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (Invalid) 4158dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor BitWidth = 0; 4168dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor else if (BitWidth) { 417ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // The bit-width expression is not potentially evaluated. 418f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); 4191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult InstantiatedBitWidth 421ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall = SemaRef.SubstExpr(BitWidth, TemplateArgs); 4228dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (InstantiatedBitWidth.isInvalid()) { 4238dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Invalid = true; 4248dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor BitWidth = 0; 4258dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } else 426e9146f2e9f1c4e281544e8c080934c72d41012caAnders Carlsson BitWidth = InstantiatedBitWidth.takeAs<Expr>(); 4278dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 4288dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 42907fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall FieldDecl *Field = SemaRef.CheckFieldDecl(D->getDeclName(), 43007fb6bef6242c0f2ab47f059583edbdef924823eJohn McCall DI->getType(), DI, 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump cast<RecordDecl>(Owner), 4328dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->getLocation(), 4338dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->isMutable(), 4348dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor BitWidth, 435ea218b8e8f9ba82d1c76bcb7e86d121a5f65ebedSteve Naroff D->getTypeSpecStartLoc(), 4368dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->getAccess(), 4378dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 0); 438663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor if (!Field) { 439663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor cast<Decl>(Owner)->setInvalidDecl(); 440f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson return 0; 441663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor } 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4431d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Field); 444d8fe2d56fb5463c9d109e8c6dab2e98b06bee186Anders Carlsson 445f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson if (Invalid) 446f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson Field->setInvalidDecl(); 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 448f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson if (!Field->getDeclName()) { 449f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson // Keep track of where this decl came from. 450f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson SemaRef.Context.setInstantiatedFromUnnamedFieldDecl(Field, D); 4519901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor } 4529901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (CXXRecordDecl *Parent= dyn_cast<CXXRecordDecl>(Field->getDeclContext())) { 4539901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (Parent->isAnonymousStructOrUnion() && 4547a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl Parent->getRedeclContext()->isFunctionOrMethod()) 4559901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Field); 4568dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 458f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson Field->setImplicit(D->isImplicit()); 45946460a68f6508775e98c19b4bb8454bb471aac24John McCall Field->setAccess(D->getAccess()); 460f4b5f5c6a1487317aab9aa30d97bccfd57c82c98Anders Carlsson Owner->addDecl(Field); 4618dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 4628dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Field; 4638dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 4648dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 46587c2e121cf0522fc266efe2922b58091cd2e0182Francois PichetDecl *TemplateDeclInstantiator::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 46687c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet NamedDecl **NamedChain = 46787c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet new (SemaRef.Context)NamedDecl*[D->getChainingSize()]; 46887c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 46987c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet int i = 0; 47087c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet for (IndirectFieldDecl::chain_iterator PI = 47187c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet D->chain_begin(), PE = D->chain_end(); 472b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor PI != PE; ++PI) { 473b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor NamedDecl *Next = SemaRef.FindInstantiatedDecl(D->getLocation(), *PI, 474b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor TemplateArgs); 475b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!Next) 476b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor return 0; 477b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor 478b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor NamedChain[i++] = Next; 479b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor } 48087c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 48140e17752086c2c497951d64f5ac6ab5039466113Francois Pichet QualType T = cast<FieldDecl>(NamedChain[i-1])->getType(); 48287c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet IndirectFieldDecl* IndirectField 48387c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet = IndirectFieldDecl::Create(SemaRef.Context, Owner, D->getLocation(), 48440e17752086c2c497951d64f5ac6ab5039466113Francois Pichet D->getIdentifier(), T, 48587c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet NamedChain, D->getChainingSize()); 48687c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 48787c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 48887c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet IndirectField->setImplicit(D->isImplicit()); 48987c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet IndirectField->setAccess(D->getAccess()); 49087c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet Owner->addDecl(IndirectField); 49187c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet return IndirectField; 49287c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet} 49387c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 49402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCallDecl *TemplateDeclInstantiator::VisitFriendDecl(FriendDecl *D) { 49502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall // Handle friend type expressions by simply substituting template 49606245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor // parameters into the pattern type and checking the result. 49732f2fb53d9d7c28c94d8569fd0fcf06cccee0c3dJohn McCall if (TypeSourceInfo *Ty = D->getFriendType()) { 4984fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth TypeSourceInfo *InstTy; 4994fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // If this is an unsupported friend, don't bother substituting template 5004fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // arguments into it. The actual type referred to won't be used by any 5014fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // parts of Clang, and may not be valid for instantiating. Just use the 5024fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth // same info for the instantiated friend. 5034fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth if (D->isUnsupportedFriend()) { 5044fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth InstTy = Ty; 5054fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } else { 5064fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth InstTy = SemaRef.SubstType(Ty, TemplateArgs, 5074fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth D->getLocation(), DeclarationName()); 5084fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth } 5094fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth if (!InstTy) 51006245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor return 0; 511fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall 51206245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor FriendDecl *FD = SemaRef.CheckFriendTypeDecl(D->getFriendLoc(), InstTy); 51306245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor if (!FD) 51406245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor return 0; 51506245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor 51606245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor FD->setAccess(AS_public); 5179a34edb710917798aa30263374f624f13b594605John McCall FD->setUnsupportedFriend(D->isUnsupportedFriend()); 51806245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor Owner->addDecl(FD); 51906245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor return FD; 52006245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor } 52106245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor 52206245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor NamedDecl *ND = D->getFriendDecl(); 52306245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor assert(ND && "friend decl must be a decl or a type!"); 52432f2fb53d9d7c28c94d8569fd0fcf06cccee0c3dJohn McCall 525af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // All of the Visit implementations for the various potential friend 526af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // declarations have to be carefully written to work for friend 527af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // objects, with the most important detail being that the target 528af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // decl should almost certainly not be placed in Owner. 529af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Decl *NewND = Visit(ND); 53006245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor if (!NewND) return 0; 5311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 53202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall FriendDecl *FD = 53306245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor FriendDecl::Create(SemaRef.Context, Owner, D->getLocation(), 53406245bfb3ae40bb24a8bfb17eafeb266a4daf5caDouglas Gregor cast<NamedDecl>(NewND), D->getFriendLoc()); 5355fee110ac106370f75592df024001de73edced2aJohn McCall FD->setAccess(AS_public); 5369a34edb710917798aa30263374f624f13b594605John McCall FD->setUnsupportedFriend(D->isUnsupportedFriend()); 53702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall Owner->addDecl(FD); 53802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall return FD; 539fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall} 540fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall 5418dbc2694424b4e842b1d5ea39744a137b58600c3Douglas GregorDecl *TemplateDeclInstantiator::VisitStaticAssertDecl(StaticAssertDecl *D) { 5428dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Expr *AssertExpr = D->getAssertExpr(); 5431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 544ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // The expression in a static assertion is not potentially evaluated. 545f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); 5461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 54760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult InstantiatedAssertExpr 548ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall = SemaRef.SubstExpr(AssertExpr, TemplateArgs); 5498dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (InstantiatedAssertExpr.isInvalid()) 5508dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return 0; 5518dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 55260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Message(D->getMessage()); 5533fa5cae9b3812cab9fab6c042c3329bb70a3d046John McCall D->getMessage(); 554d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return SemaRef.ActOnStaticAssertDeclaration(D->getLocation(), 5559ae2f076ca5ab1feb3ba95629099ec2319833701John McCall InstantiatedAssertExpr.get(), 556a2026c96d3935e7909e049ad9096762844544ed6Abramo Bagnara Message.get(), 557a2026c96d3935e7909e049ad9096762844544ed6Abramo Bagnara D->getRParenLoc()); 5588dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 5598dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 5608dbc2694424b4e842b1d5ea39744a137b58600c3Douglas GregorDecl *TemplateDeclInstantiator::VisitEnumDecl(EnumDecl *D) { 561ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara EnumDecl *Enum = EnumDecl::Create(SemaRef.Context, Owner, D->getLocStart(), 5628dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor D->getLocation(), D->getIdentifier(), 563a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara /*PrevDecl=*/0, D->isScoped(), 564a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara D->isScopedUsingClassTag(), D->isFixed()); 5651274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (D->isFixed()) { 5661274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (TypeSourceInfo* TI = D->getIntegerTypeSourceInfo()) { 5671274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor // If we have type source information for the underlying type, it means it 5681274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor // has been explicitly set by the user. Perform substitution on it before 5691274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor // moving on. 5701274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor SourceLocation UnderlyingLoc = TI->getTypeLoc().getBeginLoc(); 5711274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor Enum->setIntegerTypeSourceInfo(SemaRef.SubstType(TI, 5721274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor TemplateArgs, 5731274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor UnderlyingLoc, 5741274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor DeclarationName())); 5751274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor 5761274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (!Enum->getIntegerTypeSourceInfo()) 5771274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor Enum->setIntegerType(SemaRef.Context.IntTy); 5781274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor } 5791274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor else { 5801274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor assert(!D->getIntegerType()->isDependentType() 5811274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor && "Dependent type without type source info"); 5821274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor Enum->setIntegerType(D->getIntegerType()); 5831274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor } 5841274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor } 5851274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor 5865b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, D, Enum); 5875b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall 5888dbc3c64965f99e48830885835b7d2fc26ec3cf5Douglas Gregor Enum->setInstantiationOfMemberEnum(D); 58906c0fecd197fef21e265a41bca8dc5022de1f864Douglas Gregor Enum->setAccess(D->getAccess()); 590b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(D, Enum)) return 0; 59117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Owner->addDecl(Enum); 5928dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Enum->startDefinition(); 5938dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 59496084f171f4824397dc48453146f0a9719cb9247Douglas Gregor if (D->getDeclContext()->isFunctionOrMethod()) 59596084f171f4824397dc48453146f0a9719cb9247Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Enum); 59696084f171f4824397dc48453146f0a9719cb9247Douglas Gregor 597d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall llvm::SmallVector<Decl*, 4> Enumerators; 5988dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 5998dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EnumConstantDecl *LastEnumConst = 0; 60017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (EnumDecl::enumerator_iterator EC = D->enumerator_begin(), 60117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ECEnd = D->enumerator_end(); 6028dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EC != ECEnd; ++EC) { 6038dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // The specified value for the enumerator. 60460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Value = SemaRef.Owned((Expr *)0); 605ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor if (Expr *UninstValue = EC->getInitExpr()) { 606ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // The enumerator's value expression is not potentially evaluated. 6071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump EnterExpressionEvaluationContext Unevaluated(SemaRef, 608f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::Unevaluated); 6091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 610ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall Value = SemaRef.SubstExpr(UninstValue, TemplateArgs); 611ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor } 6128dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6138dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor // Drop the initial value and continue. 6148dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor bool isInvalid = false; 6158dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (Value.isInvalid()) { 6168dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Value = SemaRef.Owned((Expr *)0); 6178dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor isInvalid = true; 6188dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6198dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump EnumConstantDecl *EnumConst 6218dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor = SemaRef.CheckEnumConstant(Enum, LastEnumConst, 6228dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EC->getLocation(), EC->getIdentifier(), 6239ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Value.get()); 6248dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6258dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (isInvalid) { 6268dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (EnumConst) 6278dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor EnumConst->setInvalidDecl(); 6288dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor Enum->setInvalidDecl(); 6298dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6308dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6318dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor if (EnumConst) { 6325b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, *EC, EnumConst); 6335b629aa86c987f276d00453b6c9ab8424f7903feJohn McCall 6343b85ecf2049c8670eba30d0c06f28f64168af9b8John McCall EnumConst->setAccess(Enum->getAccess()); 63517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Enum->addDecl(EnumConst); 636d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Enumerators.push_back(EnumConst); 6378dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor LastEnumConst = EnumConst; 63896084f171f4824397dc48453146f0a9719cb9247Douglas Gregor 63996084f171f4824397dc48453146f0a9719cb9247Douglas Gregor if (D->getDeclContext()->isFunctionOrMethod()) { 64096084f171f4824397dc48453146f0a9719cb9247Douglas Gregor // If the enumeration is within a function or method, record the enum 64196084f171f4824397dc48453146f0a9719cb9247Douglas Gregor // constant as a local. 64296084f171f4824397dc48453146f0a9719cb9247Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(*EC, EnumConst); 64396084f171f4824397dc48453146f0a9719cb9247Douglas Gregor } 6448dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6458dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor } 6461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 647c6e35aae23bc3cea7daf5ee075fa695c01c0f66fMike Stump // FIXME: Fixup LBraceLoc and RBraceLoc 648fee13819693c8492f0c364bc704645e844ef737aEdward O'Callaghan // FIXME: Empty Scope and AttributeList (required to handle attribute packed). 649c6e35aae23bc3cea7daf5ee075fa695c01c0f66fMike Stump SemaRef.ActOnEnumBody(Enum->getLocation(), SourceLocation(), SourceLocation(), 650d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Enum, 651de7a0fcdf9f30cb5a97aab614f3975d93cd9926fEli Friedman Enumerators.data(), Enumerators.size(), 652fee13819693c8492f0c364bc704645e844ef737aEdward O'Callaghan 0, 0); 6538dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6548dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Enum; 6558dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 6568dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 6576477b69cc93e0a0ff15036d60d604f3544da0f29Douglas GregorDecl *TemplateDeclInstantiator::VisitEnumConstantDecl(EnumConstantDecl *D) { 6586477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor assert(false && "EnumConstantDecls can only occur within EnumDecls."); 6596477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor return 0; 6606477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor} 6616477b69cc93e0a0ff15036d60d604f3544da0f29Douglas Gregor 662e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCallDecl *TemplateDeclInstantiator::VisitClassTemplateDecl(ClassTemplateDecl *D) { 66393ba8579c341d5329175f1413cdc3b35a36592d2John McCall bool isFriend = (D->getFriendObjectKind() != Decl::FOK_None); 66493ba8579c341d5329175f1413cdc3b35a36592d2John McCall 665550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Create a local instantiation scope for this class template, which 666550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // will contain the instantiations of the template parameters. 6672a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 668e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateParameterList *TempParams = D->getTemplateParameters(); 669ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 6701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!InstParams) 671d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return NULL; 672e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 673e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall CXXRecordDecl *Pattern = D->getTemplatedDecl(); 67493ba8579c341d5329175f1413cdc3b35a36592d2John McCall 67593ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Instantiate the qualifier. We have to do this first in case 67693ba8579c341d5329175f1413cdc3b35a36592d2John McCall // we're a friend declaration, because if we are then we need to put 67793ba8579c341d5329175f1413cdc3b35a36592d2John McCall // the new declaration in the appropriate context. 678c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc = Pattern->getQualifierLoc(); 679c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 680c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, 681c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor TemplateArgs); 682c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!QualifierLoc) 683c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return 0; 68493ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 68593ba8579c341d5329175f1413cdc3b35a36592d2John McCall 68693ba8579c341d5329175f1413cdc3b35a36592d2John McCall CXXRecordDecl *PrevDecl = 0; 68793ba8579c341d5329175f1413cdc3b35a36592d2John McCall ClassTemplateDecl *PrevClassTemplate = 0; 68893ba8579c341d5329175f1413cdc3b35a36592d2John McCall 68937574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (!isFriend && Pattern->getPreviousDeclaration()) { 69037574f55cd637340f651330f5cfda69742880d36Nick Lewycky DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); 69137574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (Found.first != Found.second) { 69237574f55cd637340f651330f5cfda69742880d36Nick Lewycky PrevClassTemplate = dyn_cast<ClassTemplateDecl>(*Found.first); 69337574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (PrevClassTemplate) 69437574f55cd637340f651330f5cfda69742880d36Nick Lewycky PrevDecl = PrevClassTemplate->getTemplatedDecl(); 69537574f55cd637340f651330f5cfda69742880d36Nick Lewycky } 69637574f55cd637340f651330f5cfda69742880d36Nick Lewycky } 69737574f55cd637340f651330f5cfda69742880d36Nick Lewycky 69893ba8579c341d5329175f1413cdc3b35a36592d2John McCall // If this isn't a friend, then it's a member template, in which 69993ba8579c341d5329175f1413cdc3b35a36592d2John McCall // case we just want to build the instantiation in the 70093ba8579c341d5329175f1413cdc3b35a36592d2John McCall // specialization. If it is a friend, we want to build it in 70193ba8579c341d5329175f1413cdc3b35a36592d2John McCall // the appropriate context. 70293ba8579c341d5329175f1413cdc3b35a36592d2John McCall DeclContext *DC = Owner; 70393ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (isFriend) { 704c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 70593ba8579c341d5329175f1413cdc3b35a36592d2John McCall CXXScopeSpec SS; 706c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor SS.Adopt(QualifierLoc); 70793ba8579c341d5329175f1413cdc3b35a36592d2John McCall DC = SemaRef.computeDeclContext(SS); 70893ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (!DC) return 0; 70993ba8579c341d5329175f1413cdc3b35a36592d2John McCall } else { 71093ba8579c341d5329175f1413cdc3b35a36592d2John McCall DC = SemaRef.FindInstantiatedContext(Pattern->getLocation(), 71193ba8579c341d5329175f1413cdc3b35a36592d2John McCall Pattern->getDeclContext(), 71293ba8579c341d5329175f1413cdc3b35a36592d2John McCall TemplateArgs); 71393ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 71493ba8579c341d5329175f1413cdc3b35a36592d2John McCall 71593ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Look for a previous declaration of the template in the owning 71693ba8579c341d5329175f1413cdc3b35a36592d2John McCall // context. 71793ba8579c341d5329175f1413cdc3b35a36592d2John McCall LookupResult R(SemaRef, Pattern->getDeclName(), Pattern->getLocation(), 71893ba8579c341d5329175f1413cdc3b35a36592d2John McCall Sema::LookupOrdinaryName, Sema::ForRedeclaration); 71993ba8579c341d5329175f1413cdc3b35a36592d2John McCall SemaRef.LookupQualifiedName(R, DC); 72093ba8579c341d5329175f1413cdc3b35a36592d2John McCall 72193ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (R.isSingleResult()) { 72293ba8579c341d5329175f1413cdc3b35a36592d2John McCall PrevClassTemplate = R.getAsSingle<ClassTemplateDecl>(); 72393ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (PrevClassTemplate) 72493ba8579c341d5329175f1413cdc3b35a36592d2John McCall PrevDecl = PrevClassTemplate->getTemplatedDecl(); 72593ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 72693ba8579c341d5329175f1413cdc3b35a36592d2John McCall 727c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!PrevClassTemplate && QualifierLoc) { 72893ba8579c341d5329175f1413cdc3b35a36592d2John McCall SemaRef.Diag(Pattern->getLocation(), diag::err_not_tag_in_scope) 7291eabb7d0c30f6a876b0fd03ad4656c096c26b8d0Douglas Gregor << D->getTemplatedDecl()->getTagKind() << Pattern->getDeclName() << DC 730c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor << QualifierLoc.getSourceRange(); 73193ba8579c341d5329175f1413cdc3b35a36592d2John McCall return 0; 73293ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 73393ba8579c341d5329175f1413cdc3b35a36592d2John McCall 734c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor bool AdoptedPreviousTemplateParams = false; 73593ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (PrevClassTemplate) { 736c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor bool Complain = true; 737c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor 738c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // HACK: libstdc++ 4.2.1 contains an ill-formed friend class 739c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // template for struct std::tr1::__detail::_Map_base, where the 740c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // template parameters of the friend declaration don't match the 741c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // template parameters of the original declaration. In this one 742c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // case, we don't complain about the ill-formed friend 743c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor // declaration. 744c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (isFriend && Pattern->getIdentifier() && 745c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Pattern->getIdentifier()->isStr("_Map_base") && 746c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DC->isNamespace() && 747c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DC)->getIdentifier() && 748c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DC)->getIdentifier()->isStr("__detail")) { 749c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DeclContext *DCParent = DC->getParent(); 750c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (DCParent->isNamespace() && 751c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent)->getIdentifier() && 752c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent)->getIdentifier()->isStr("tr1")) { 753c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DeclContext *DCParent2 = DCParent->getParent(); 754c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (DCParent2->isNamespace() && 755c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent2)->getIdentifier() && 756c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor cast<NamespaceDecl>(DCParent2)->getIdentifier()->isStr("std") && 757c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor DCParent2->getParent()->isTranslationUnit()) 758c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Complain = false; 759c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor } 760c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor } 761c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor 76293ba8579c341d5329175f1413cdc3b35a36592d2John McCall TemplateParameterList *PrevParams 76393ba8579c341d5329175f1413cdc3b35a36592d2John McCall = PrevClassTemplate->getTemplateParameters(); 76493ba8579c341d5329175f1413cdc3b35a36592d2John McCall 76593ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Make sure the parameter lists match. 76693ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (!SemaRef.TemplateParameterListsAreEqual(InstParams, PrevParams, 767c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Complain, 768c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor Sema::TPL_TemplateMatch)) { 769c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (Complain) 770c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor return 0; 771c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor 772c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor AdoptedPreviousTemplateParams = true; 773c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor InstParams = PrevParams; 774c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor } 77593ba8579c341d5329175f1413cdc3b35a36592d2John McCall 77693ba8579c341d5329175f1413cdc3b35a36592d2John McCall // Do some additional validation, then merge default arguments 77793ba8579c341d5329175f1413cdc3b35a36592d2John McCall // from the existing declarations. 778c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor if (!AdoptedPreviousTemplateParams && 779c53d0d762010217d02da5aa14be171817d63e3feDouglas Gregor SemaRef.CheckTemplateParameterList(InstParams, PrevParams, 78093ba8579c341d5329175f1413cdc3b35a36592d2John McCall Sema::TPC_ClassTemplate)) 78193ba8579c341d5329175f1413cdc3b35a36592d2John McCall return 0; 78293ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 78393ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 78493ba8579c341d5329175f1413cdc3b35a36592d2John McCall 785e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall CXXRecordDecl *RecordInst 78693ba8579c341d5329175f1413cdc3b35a36592d2John McCall = CXXRecordDecl::Create(SemaRef.Context, Pattern->getTagKind(), DC, 787ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara Pattern->getLocStart(), Pattern->getLocation(), 788ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara Pattern->getIdentifier(), PrevDecl, 789f0510d49a6985e9284d30cfc36a0df2a6292a638Douglas Gregor /*DelayTypeCreation=*/true); 790e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 791c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) 792c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor RecordInst->setQualifierInfo(QualifierLoc); 793b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 794e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall ClassTemplateDecl *Inst 79593ba8579c341d5329175f1413cdc3b35a36592d2John McCall = ClassTemplateDecl::Create(SemaRef.Context, DC, D->getLocation(), 79693ba8579c341d5329175f1413cdc3b35a36592d2John McCall D->getIdentifier(), InstParams, RecordInst, 79793ba8579c341d5329175f1413cdc3b35a36592d2John McCall PrevClassTemplate); 798e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall RecordInst->setDescribedClassTemplate(Inst); 799ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall 80093ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (isFriend) { 801ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall if (PrevClassTemplate) 802ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall Inst->setAccess(PrevClassTemplate->getAccess()); 803ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall else 804ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall Inst->setAccess(D->getAccess()); 805ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall 80693ba8579c341d5329175f1413cdc3b35a36592d2John McCall Inst->setObjectOfFriendDecl(PrevClassTemplate != 0); 80793ba8579c341d5329175f1413cdc3b35a36592d2John McCall // TODO: do we want to track the instantiation progeny of this 80893ba8579c341d5329175f1413cdc3b35a36592d2John McCall // friend target decl? 80993ba8579c341d5329175f1413cdc3b35a36592d2John McCall } else { 810e8c01bdb56549adcecd71ce39160eea54b2c51c8Douglas Gregor Inst->setAccess(D->getAccess()); 81137574f55cd637340f651330f5cfda69742880d36Nick Lewycky if (!PrevClassTemplate) 81237574f55cd637340f651330f5cfda69742880d36Nick Lewycky Inst->setInstantiatedFromMemberTemplate(D); 81393ba8579c341d5329175f1413cdc3b35a36592d2John McCall } 814f0510d49a6985e9284d30cfc36a0df2a6292a638Douglas Gregor 815f0510d49a6985e9284d30cfc36a0df2a6292a638Douglas Gregor // Trigger creation of the type for the instantiation. 8163cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall SemaRef.Context.getInjectedClassNameType(RecordInst, 81724bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor Inst->getInjectedClassNameSpecialization()); 818ea7390c7b384ce607bfc8fc13c01f37cfc3776f0John McCall 819259571e27e513cfaf691cc7447e09b31a47d5438Douglas Gregor // Finish handling of friends. 82093ba8579c341d5329175f1413cdc3b35a36592d2John McCall if (isFriend) { 82193ba8579c341d5329175f1413cdc3b35a36592d2John McCall DC->makeDeclVisibleInContext(Inst, /*Recoverable*/ false); 822e8c01bdb56549adcecd71ce39160eea54b2c51c8Douglas Gregor return Inst; 823259571e27e513cfaf691cc7447e09b31a47d5438Douglas Gregor } 824e8c01bdb56549adcecd71ce39160eea54b2c51c8Douglas Gregor 825e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall Owner->addDecl(Inst); 826d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor 827d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor if (!PrevClassTemplate) { 828d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor // Queue up any out-of-line partial specializations of this member 829d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor // class template; the client will force their instantiation once 830d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor // the enclosing class has been instantiated. 831d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor llvm::SmallVector<ClassTemplatePartialSpecializationDecl *, 4> PartialSpecs; 832d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor D->getPartialSpecializations(PartialSpecs); 833d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor for (unsigned I = 0, N = PartialSpecs.size(); I != N; ++I) 834d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor if (PartialSpecs[I]->isOutOfLine()) 835d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor OutOfLinePartialSpecs.push_back(std::make_pair(Inst, PartialSpecs[I])); 836d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor } 837d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor 838e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return Inst; 839e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall} 840e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 841d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorDecl * 8427974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas GregorTemplateDeclInstantiator::VisitClassTemplatePartialSpecializationDecl( 8437974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas Gregor ClassTemplatePartialSpecializationDecl *D) { 844ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateDecl *ClassTemplate = D->getSpecializedTemplate(); 845ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 846ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Lookup the already-instantiated declaration in the instantiation 847ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // of the class template and return that. 848ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor DeclContext::lookup_result Found 849ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = Owner->lookup(ClassTemplate->getDeclName()); 850ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (Found.first == Found.second) 851ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return 0; 852ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 853ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateDecl *InstClassTemplate 854ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = dyn_cast<ClassTemplateDecl>(*Found.first); 855ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (!InstClassTemplate) 856ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return 0; 857ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 858d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor if (ClassTemplatePartialSpecializationDecl *Result 859d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor = InstClassTemplate->findPartialSpecInstantiatedFromMember(D)) 860d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return Result; 861d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor 862d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return InstantiateClassTemplatePartialSpecialization(InstClassTemplate, D); 8637974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas Gregor} 8647974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas Gregor 8657974c3b7062f85bb7c0ada34526cdefe1d30f89bDouglas GregorDecl * 866d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorTemplateDeclInstantiator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 867550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Create a local instantiation scope for this function template, which 868550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // will contain the instantiations of the template parameters and then get 869550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // merged with the local instantiation scope for the function template 870550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // itself. 8712a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 872895162da2d52f4243f61081d7436de66af4503fcDouglas Gregor 873d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParameterList *TempParams = D->getTemplateParameters(); 874d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 8751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!InstParams) 876d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return NULL; 877ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 878a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor FunctionDecl *Instantiated = 0; 879a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor if (CXXMethodDecl *DMethod = dyn_cast<CXXMethodDecl>(D->getTemplatedDecl())) 880a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Instantiated = cast_or_null<FunctionDecl>(VisitCXXMethodDecl(DMethod, 881a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor InstParams)); 882a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor else 883a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Instantiated = cast_or_null<FunctionDecl>(VisitFunctionDecl( 884a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor D->getTemplatedDecl(), 885a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor InstParams)); 886a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 887a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor if (!Instantiated) 888d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return 0; 889d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor 89046460a68f6508775e98c19b4bb8454bb471aac24John McCall Instantiated->setAccess(D->getAccess()); 89146460a68f6508775e98c19b4bb8454bb471aac24John McCall 8921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Link the instantiated function template declaration to the function 893d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // template from which it was instantiated. 89437d68185088947322a97eabdc1c0714b0debd929Douglas Gregor FunctionTemplateDecl *InstTemplate 895a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor = Instantiated->getDescribedFunctionTemplate(); 89637d68185088947322a97eabdc1c0714b0debd929Douglas Gregor InstTemplate->setAccess(D->getAccess()); 897a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor assert(InstTemplate && 898a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor "VisitFunctionDecl/CXXMethodDecl didn't create a template!"); 899e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall 900b1a56e767cfb645fcb25027ab728dd5824d92615John McCall bool isFriend = (InstTemplate->getFriendObjectKind() != Decl::FOK_None); 901b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 902e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall // Link the instantiation back to the pattern *unless* this is a 903e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall // non-definition friend declaration. 904e976ffe18ee60b81641423f42ff6feec2f5e3cb7John McCall if (!InstTemplate->getInstantiatedFromMemberTemplate() && 905b1a56e767cfb645fcb25027ab728dd5824d92615John McCall !(isFriend && !D->getTemplatedDecl()->isThisDeclarationADefinition())) 906a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor InstTemplate->setInstantiatedFromMemberTemplate(D); 907a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 908b1a56e767cfb645fcb25027ab728dd5824d92615John McCall // Make declarations visible in the appropriate context. 909b1a56e767cfb645fcb25027ab728dd5824d92615John McCall if (!isFriend) 910a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Owner->addDecl(InstTemplate); 911b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 912d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor return InstTemplate; 913d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor} 914d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor 915d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas GregorDecl *TemplateDeclInstantiator::VisitCXXRecordDecl(CXXRecordDecl *D) { 916d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor CXXRecordDecl *PrevDecl = 0; 917d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (D->isInjectedClassName()) 918d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor PrevDecl = cast<CXXRecordDecl>(Owner); 9196c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall else if (D->getPreviousDeclaration()) { 9207c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor NamedDecl *Prev = SemaRef.FindInstantiatedDecl(D->getLocation(), 9217c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor D->getPreviousDeclaration(), 9226c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall TemplateArgs); 9236c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall if (!Prev) return 0; 9246c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall PrevDecl = cast<CXXRecordDecl>(Prev); 9256c1c1b8c6ca743a5b6b4c81f9ac56392c12c7457John McCall } 926d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor 927d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor CXXRecordDecl *Record 9281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = CXXRecordDecl::Create(SemaRef.Context, D->getTagKind(), Owner, 929ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara D->getLocStart(), D->getLocation(), 930ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara D->getIdentifier(), PrevDecl); 931b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 932b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Substitute the nested name specifier, if any. 933b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(D, Record)) 934b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return 0; 935b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 936d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor Record->setImplicit(D->isImplicit()); 937eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman // FIXME: Check against AS_none is an ugly hack to work around the issue that 938eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman // the tag decls introduced by friend class declarations don't have an access 939eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman // specifier. Remove once this area of the code gets sorted out. 940eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman if (D->getAccess() != AS_none) 941eaba1af8529c381d7bfd4dd0a8b48d2c01647972Eli Friedman Record->setAccess(D->getAccess()); 942d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (!D->isInjectedClassName()) 943f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor Record->setInstantiationOfMemberClass(D, TSK_ImplicitInstantiation); 944d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor 94502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall // If the original function was part of a friend declaration, 94602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall // inherit its namespace state. 94702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall if (Decl::FriendObjectKind FOK = D->getFriendObjectKind()) 94802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall Record->setObjectOfFriendDecl(FOK == Decl::FOK_Declared); 94902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 9509901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor // Make sure that anonymous structs and unions are recorded. 9519901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor if (D->isAnonymousStructOrUnion()) { 9529901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor Record->setAnonymousStructOrUnion(true); 9537a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (Record->getDeclContext()->getRedeclContext()->isFunctionOrMethod()) 9549901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Record); 9559901c57806f7e36736ed1616e6ab3eebcc99b78cDouglas Gregor } 956d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 95717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Owner->addDecl(Record); 958d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor return Record; 959d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor} 960d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor 96102cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// Normal class members are of more specific types and therefore 96202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// don't make it here. This function serves two purposes: 96302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// 1) instantiating function templates 96402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// 2) substituting friend declarations 96502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// FIXME: preserve function definitions in case #2 9667557a1348d2821dce126a778aa7acd7a00b814fdDouglas GregorDecl *TemplateDeclInstantiator::VisitFunctionDecl(FunctionDecl *D, 967a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor TemplateParameterList *TemplateParams) { 968127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // Check whether there is already a function template specialization for 969127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // this declaration. 970127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); 971127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor void *InsertPos = 0; 972b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate && !TemplateParams) { 97324bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 97424bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 9751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9762c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis FunctionDecl *SpecFunc 9772c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, 9782c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis InsertPos); 9791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 980127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // If we already have a function template specialization, return it. 9812c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis if (SpecFunc) 9822c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis return SpecFunc; 983127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor } 9841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 985b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall bool isFriend; 986b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate) 987b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); 988b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall else 989b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (D->getFriendObjectKind() != Decl::FOK_None); 990b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 99179c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor bool MergeWithParentScope = (TemplateParams != 0) || 992b212d9a8e10308cde5b7a1ce07bd59d8df14fa06Douglas Gregor Owner->isFunctionOrMethod() || 99379c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor !(isa<Decl>(Owner) && 99479c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); 9952a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); 9961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 997e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor llvm::SmallVector<ParmVarDecl *, 4> Params; 99821ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TypeSourceInfo *TInfo = D->getTypeSourceInfo(); 99921ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TInfo = SubstFunctionType(D, Params); 100021ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall if (!TInfo) 10012dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return 0; 100221ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall QualType T = TInfo->getType(); 1003fd810b1386ed29b250e7d522ea826a65c815e49dJohn McCall 1004c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); 1005c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 1006c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, 1007c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor TemplateArgs); 1008c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!QualifierLoc) 1009c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return 0; 1010d325daa506338ab86f9dd468b48fd010673f49a6John McCall } 1011d325daa506338ab86f9dd468b48fd010673f49a6John McCall 101268b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall // If we're instantiating a local function declaration, put the result 101368b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall // in the owner; otherwise we need to find the instantiated context. 101468b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall DeclContext *DC; 101568b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall if (D->getDeclContext()->isFunctionOrMethod()) 101668b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall DC = Owner; 1017c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor else if (isFriend && QualifierLoc) { 1018d325daa506338ab86f9dd468b48fd010673f49a6John McCall CXXScopeSpec SS; 1019c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor SS.Adopt(QualifierLoc); 1020d325daa506338ab86f9dd468b48fd010673f49a6John McCall DC = SemaRef.computeDeclContext(SS); 1021d325daa506338ab86f9dd468b48fd010673f49a6John McCall if (!DC) return 0; 1022d325daa506338ab86f9dd468b48fd010673f49a6John McCall } else { 10237c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor DC = SemaRef.FindInstantiatedContext(D->getLocation(), D->getDeclContext(), 10247c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor TemplateArgs); 1025d325daa506338ab86f9dd468b48fd010673f49a6John McCall } 102668b6b87b6beb7922fc2c8ab923ba2ce125490363John McCall 102702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall FunctionDecl *Function = 1028ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara FunctionDecl::Create(SemaRef.Context, DC, D->getInnerLocStart(), 1029ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getLocation(), D->getDeclName(), T, TInfo, 103016573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClass(), D->getStorageClassAsWritten(), 10310130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor D->isInlineSpecified(), D->hasWrittenPrototype()); 1032b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1033c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) 1034c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor Function->setQualifierInfo(QualifierLoc); 1035b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1036b1a56e767cfb645fcb25027ab728dd5824d92615John McCall DeclContext *LexicalDC = Owner; 1037b1a56e767cfb645fcb25027ab728dd5824d92615John McCall if (!isFriend && D->isOutOfLine()) { 1038b1a56e767cfb645fcb25027ab728dd5824d92615John McCall assert(D->getDeclContext()->isFileContext()); 1039b1a56e767cfb645fcb25027ab728dd5824d92615John McCall LexicalDC = D->getDeclContext(); 1040b1a56e767cfb645fcb25027ab728dd5824d92615John McCall } 1041b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 1042b1a56e767cfb645fcb25027ab728dd5824d92615John McCall Function->setLexicalDeclContext(LexicalDC); 10431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1044e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor // Attach the parameters 1045e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor for (unsigned P = 0; P < Params.size(); ++P) 10463019c444c672938c57f5573840071ecd73425ee7John McCall if (Params[P]) 10473019c444c672938c57f5573840071ecd73425ee7John McCall Params[P]->setOwningFunction(Function); 1048838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Function->setParams(Params.data(), Params.size()); 104902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 1050ac7c2c8a9d47df7d652364af3043c41816a18fa4Douglas Gregor SourceLocation InstantiateAtPOI; 1051a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor if (TemplateParams) { 1052a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // Our resulting instantiation is actually a function template, since we 1053a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // are substituting only the outer template parameters. For example, given 1054a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // 1055a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // template<typename T> 1056a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // struct X { 1057a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // template<typename U> friend void f(T, U); 1058a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // }; 1059a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // 1060a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // X<int> x; 1061a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // 1062a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // We are instantiating the friend function template "f" within X<int>, 1063a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // which means substituting int for T, but leaving "f" as a friend function 1064a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // template. 1065a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // Build the function template itself. 1066d325daa506338ab86f9dd468b48fd010673f49a6John McCall FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, DC, 1067a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Function->getLocation(), 1068a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Function->getDeclName(), 1069a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor TemplateParams, Function); 1070a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor Function->setDescribedFunctionTemplate(FunctionTemplate); 1071b1a56e767cfb645fcb25027ab728dd5824d92615John McCall 1072b1a56e767cfb645fcb25027ab728dd5824d92615John McCall FunctionTemplate->setLexicalDeclContext(LexicalDC); 1073d325daa506338ab86f9dd468b48fd010673f49a6John McCall 1074d325daa506338ab86f9dd468b48fd010673f49a6John McCall if (isFriend && D->isThisDeclarationADefinition()) { 1075d325daa506338ab86f9dd468b48fd010673f49a6John McCall // TODO: should we remember this connection regardless of whether 1076d325daa506338ab86f9dd468b48fd010673f49a6John McCall // the friend declaration provided a body? 1077d325daa506338ab86f9dd468b48fd010673f49a6John McCall FunctionTemplate->setInstantiatedFromMemberTemplate( 1078d325daa506338ab86f9dd468b48fd010673f49a6John McCall D->getDescribedFunctionTemplate()); 1079d325daa506338ab86f9dd468b48fd010673f49a6John McCall } 108066724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor } else if (FunctionTemplate) { 108166724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor // Record this function template specialization. 108224bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 108324bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 1084838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Function->setFunctionTemplateSpecialization(FunctionTemplate, 1085910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor TemplateArgumentList::CreateCopy(SemaRef.Context, 108624bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor Innermost.first, 108724bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor Innermost.second), 108866724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor InsertPos); 1089d325daa506338ab86f9dd468b48fd010673f49a6John McCall } else if (isFriend && D->isThisDeclarationADefinition()) { 1090d325daa506338ab86f9dd468b48fd010673f49a6John McCall // TODO: should we remember this connection regardless of whether 1091d325daa506338ab86f9dd468b48fd010673f49a6John McCall // the friend declaration provided a body? 1092d325daa506338ab86f9dd468b48fd010673f49a6John McCall Function->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); 109302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall } 1094a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 1095e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (InitFunctionInstantiation(Function, D)) 1096e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor Function->setInvalidDecl(); 10971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1098e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor bool Redeclaration = false; 1099af2094e7cecadf36667deb61a83587ffdd979bd3John McCall bool isExplicitSpecialization = false; 1100a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 11016826314938f8510cd1a6b03b5d032592456ae27bJohn McCall LookupResult Previous(SemaRef, Function->getDeclName(), SourceLocation(), 11026826314938f8510cd1a6b03b5d032592456ae27bJohn McCall Sema::LookupOrdinaryName, Sema::ForRedeclaration); 11036826314938f8510cd1a6b03b5d032592456ae27bJohn McCall 1104af2094e7cecadf36667deb61a83587ffdd979bd3John McCall if (DependentFunctionTemplateSpecializationInfo *Info 1105af2094e7cecadf36667deb61a83587ffdd979bd3John McCall = D->getDependentSpecializationInfo()) { 1106af2094e7cecadf36667deb61a83587ffdd979bd3John McCall assert(isFriend && "non-friend has dependent specialization info?"); 1107af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1108af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // This needs to be set now for future sanity. 1109af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Function->setObjectOfFriendDecl(/*HasPrevious*/ true); 1110af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1111af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // Instantiate the explicit template arguments. 1112af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateArgumentListInfo ExplicitArgs(Info->getLAngleLoc(), 1113af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Info->getRAngleLoc()); 1114e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor if (SemaRef.Subst(Info->getTemplateArgs(), Info->getNumTemplateArgs(), 1115e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor ExplicitArgs, TemplateArgs)) 1116e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor return 0; 1117af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1118af2094e7cecadf36667deb61a83587ffdd979bd3John McCall // Map the candidate templates to their instantiations. 1119af2094e7cecadf36667deb61a83587ffdd979bd3John McCall for (unsigned I = 0, E = Info->getNumTemplates(); I != E; ++I) { 1120af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Decl *Temp = SemaRef.FindInstantiatedDecl(D->getLocation(), 1121af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Info->getTemplate(I), 1122af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateArgs); 1123af2094e7cecadf36667deb61a83587ffdd979bd3John McCall if (!Temp) return 0; 1124af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1125af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Previous.addDecl(cast<FunctionTemplateDecl>(Temp)); 1126af2094e7cecadf36667deb61a83587ffdd979bd3John McCall } 1127af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1128af2094e7cecadf36667deb61a83587ffdd979bd3John McCall if (SemaRef.CheckFunctionTemplateSpecialization(Function, 1129af2094e7cecadf36667deb61a83587ffdd979bd3John McCall &ExplicitArgs, 1130af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Previous)) 1131af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Function->setInvalidDecl(); 1132af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1133af2094e7cecadf36667deb61a83587ffdd979bd3John McCall isExplicitSpecialization = true; 1134af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1135af2094e7cecadf36667deb61a83587ffdd979bd3John McCall } else if (TemplateParams || !FunctionTemplate) { 1136a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // Look only into the namespace where the friend would be declared to 1137a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // find a previous declaration. This is the innermost enclosing namespace, 1138a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // as described in ActOnFriendFunctionDecl. 11396826314938f8510cd1a6b03b5d032592456ae27bJohn McCall SemaRef.LookupQualifiedName(Previous, DC); 1140a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 1141a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // In C++, the previous declaration we find might be a tag type 1142a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // (class or enum). In this case, the new declaration will hide the 1143a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // tag type. Note that this does does not apply if we're declaring a 1144a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // typedef (C++ [dcl.typedef]p4). 11456826314938f8510cd1a6b03b5d032592456ae27bJohn McCall if (Previous.isSingleTagDecl()) 11466826314938f8510cd1a6b03b5d032592456ae27bJohn McCall Previous.clear(); 1147a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor } 1148a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 11499f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.CheckFunctionDeclaration(/*Scope*/ 0, Function, Previous, 1150c80e8115278ba1537c8b517a083ecbd0a018b579Peter Collingbourne isExplicitSpecialization, Redeclaration); 1151e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor 115276d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall NamedDecl *PrincipalDecl = (TemplateParams 115376d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall ? cast<NamedDecl>(FunctionTemplate) 115476d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall : Function); 115576d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 1156a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // If the original function was part of a friend declaration, 1157a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor // inherit its namespace state and add it to the owner. 1158d325daa506338ab86f9dd468b48fd010673f49a6John McCall if (isFriend) { 11596826314938f8510cd1a6b03b5d032592456ae27bJohn McCall NamedDecl *PrevDecl; 116076d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall if (TemplateParams) 1161a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor PrevDecl = FunctionTemplate->getPreviousDeclaration(); 116276d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall else 1163a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor PrevDecl = Function->getPreviousDeclaration(); 116476d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 116576d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall PrincipalDecl->setObjectOfFriendDecl(PrevDecl != 0); 116676d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall DC->makeDeclVisibleInContext(PrincipalDecl, /*Recoverable=*/ false); 1167ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif 116877535dfde258765c056ef4c6786ef56cc48f0c76Gabor Greif bool queuedInstantiation = false; 1169ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif 1170238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor if (!SemaRef.getLangOptions().CPlusPlus0x && 1171238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor D->isThisDeclarationADefinition()) { 1172238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor // Check for a function body. 1173238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor const FunctionDecl *Definition = 0; 117406a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (Function->hasBody(Definition) && 1175238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor Definition->getTemplateSpecializationKind() == TSK_Undeclared) { 1176238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor SemaRef.Diag(Function->getLocation(), diag::err_redefinition) 1177238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor << Function->getDeclName(); 1178238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor SemaRef.Diag(Definition->getLocation(), diag::note_previous_definition); 1179238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor Function->setInvalidDecl(); 1180238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1181238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor // Check for redefinitions due to other instantiations of this or 1182238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor // a similar friend function. 1183238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor else for (FunctionDecl::redecl_iterator R = Function->redecls_begin(), 1184238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor REnd = Function->redecls_end(); 1185238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor R != REnd; ++R) { 118613a8affbb87cdb869adabe2a6e5998559f2598c4Gabor Greif if (*R == Function) 118713a8affbb87cdb869adabe2a6e5998559f2598c4Gabor Greif continue; 1188ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif switch (R->getFriendObjectKind()) { 1189ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif case Decl::FOK_None: 1190ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif if (!queuedInstantiation && R->isUsed(false)) { 1191ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif if (MemberSpecializationInfo *MSInfo 1192ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif = Function->getMemberSpecializationInfo()) { 1193ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif if (MSInfo->getPointOfInstantiation().isInvalid()) { 1194ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif SourceLocation Loc = R->getLocation(); // FIXME 1195ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif MSInfo->setPointOfInstantiation(Loc); 1196ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif SemaRef.PendingLocalImplicitInstantiations.push_back( 1197ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif std::make_pair(Function, Loc)); 1198ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif queuedInstantiation = true; 1199ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif } 1200ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif } 1201ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif } 1202ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif break; 1203ab297ac4d3f7c078a34c75493b840ef6b5801be3Gabor Greif default: 1204238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor if (const FunctionDecl *RPattern 12056a557d8f6b3d7a747a0b57960d4b86f05ba2e53cGabor Greif = R->getTemplateInstantiationPattern()) 120606a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (RPattern->hasBody(RPattern)) { 1207238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor SemaRef.Diag(Function->getLocation(), diag::err_redefinition) 1208238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor << Function->getDeclName(); 12096a557d8f6b3d7a747a0b57960d4b86f05ba2e53cGabor Greif SemaRef.Diag(R->getLocation(), diag::note_previous_definition); 1210238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor Function->setInvalidDecl(); 1211238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor break; 1212238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1213238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1214238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1215238058c372cfb7bdaf489f51171eb1380ebfd6a6Douglas Gregor } 1216a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor } 1217a735b206fdb5c15767a45289e1ffb3b568f70f2bDouglas Gregor 121876d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall if (Function->isOverloadedOperator() && !DC->isRecord() && 121976d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall PrincipalDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) 122076d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall PrincipalDecl->setNonMemberOperator(); 122176d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 1222e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return Function; 1223e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor} 12242dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1225d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorDecl * 1226d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas GregorTemplateDeclInstantiator::VisitCXXMethodDecl(CXXMethodDecl *D, 1227d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParameterList *TemplateParams) { 12286b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); 12296b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor void *InsertPos = 0; 1230d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor if (FunctionTemplate && !TemplateParams) { 12311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We are creating a function template specialization from a function 12321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // template. Check whether there is already a function template 1233d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // specialization for this particular set of template arguments. 123424bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 123524bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12372c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis FunctionDecl *SpecFunc 12382c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, 12392c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis InsertPos); 12401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12416b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor // If we already have a function template specialization, return it. 12422c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis if (SpecFunc) 12432c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis return SpecFunc; 12446b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor } 12456b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor 1246b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall bool isFriend; 1247b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate) 1248b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); 1249b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall else 1250b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall isFriend = (D->getFriendObjectKind() != Decl::FOK_None); 1251b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 125279c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor bool MergeWithParentScope = (TemplateParams != 0) || 125379c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor !(isa<Decl>(Owner) && 125479c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); 12552a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); 125648dd19b19ddb9e105f8cf0bf6f0732ca4e6a385bDouglas Gregor 12574eab39f0745fb1949dbb40c4145771b927888242John McCall // Instantiate enclosing template arguments for friends. 12584eab39f0745fb1949dbb40c4145771b927888242John McCall llvm::SmallVector<TemplateParameterList *, 4> TempParamLists; 12594eab39f0745fb1949dbb40c4145771b927888242John McCall unsigned NumTempParamLists = 0; 12604eab39f0745fb1949dbb40c4145771b927888242John McCall if (isFriend && (NumTempParamLists = D->getNumTemplateParameterLists())) { 12614eab39f0745fb1949dbb40c4145771b927888242John McCall TempParamLists.set_size(NumTempParamLists); 12624eab39f0745fb1949dbb40c4145771b927888242John McCall for (unsigned I = 0; I != NumTempParamLists; ++I) { 12634eab39f0745fb1949dbb40c4145771b927888242John McCall TemplateParameterList *TempParams = D->getTemplateParameterList(I); 12644eab39f0745fb1949dbb40c4145771b927888242John McCall TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 12654eab39f0745fb1949dbb40c4145771b927888242John McCall if (!InstParams) 12664eab39f0745fb1949dbb40c4145771b927888242John McCall return NULL; 12674eab39f0745fb1949dbb40c4145771b927888242John McCall TempParamLists[I] = InstParams; 12684eab39f0745fb1949dbb40c4145771b927888242John McCall } 12694eab39f0745fb1949dbb40c4145771b927888242John McCall } 12704eab39f0745fb1949dbb40c4145771b927888242John McCall 12710ca20ac8cea99c43d89510f29cf3dc876f9c9111Douglas Gregor llvm::SmallVector<ParmVarDecl *, 4> Params; 127221ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TypeSourceInfo *TInfo = D->getTypeSourceInfo(); 127321ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TInfo = SubstFunctionType(D, Params); 127421ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall if (!TInfo) 12752dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return 0; 127621ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall QualType T = TInfo->getType(); 12772dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1278723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara // \brief If the type of this function, after ignoring parentheses, 1279723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara // is not *directly* a function type, then we're instantiating a function 1280723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara // that was declared via a typedef, e.g., 12815f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // 12825f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // typedef int functype(int, int); 12835f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // functype func; 12845f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // 12855f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // In this case, we'll just go instantiate the ParmVarDecls that we 12865f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor // synthesized in the method declaration. 1287723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara if (!isa<FunctionProtoType>(T.IgnoreParens())) { 12885f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor assert(!Params.size() && "Instantiating type could not yield parameters"); 128912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor llvm::SmallVector<QualType, 4> ParamTypes; 129012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor if (SemaRef.SubstParmTypes(D->getLocation(), D->param_begin(), 129112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor D->getNumParams(), TemplateArgs, ParamTypes, 129212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor &Params)) 129312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor return 0; 12945f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor } 12955f970eee81372dfc6a1457c3d6d052af04e32a38Douglas Gregor 1296c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); 1297c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 1298c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, 1299b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall TemplateArgs); 1300c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (!QualifierLoc) 1301c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor return 0; 1302b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1303b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 1304b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall DeclContext *DC = Owner; 1305b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) { 1306c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 1307b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall CXXScopeSpec SS; 1308c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor SS.Adopt(QualifierLoc); 1309b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall DC = SemaRef.computeDeclContext(SS); 1310c54d688c604d28dcb9ab8f92047837c10c8f9c61John McCall 1311c54d688c604d28dcb9ab8f92047837c10c8f9c61John McCall if (DC && SemaRef.RequireCompleteDeclContext(SS, DC)) 1312c54d688c604d28dcb9ab8f92047837c10c8f9c61John McCall return 0; 1313b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else { 1314b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall DC = SemaRef.FindInstantiatedContext(D->getLocation(), 1315b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall D->getDeclContext(), 1316b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall TemplateArgs); 1317b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1318b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (!DC) return 0; 1319b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1320b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 13212dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Build the instantiated method declaration. 1322b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall CXXRecordDecl *Record = cast<CXXRecordDecl>(DC); 1323dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor CXXMethodDecl *Method = 0; 13241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1325ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation StartLoc = D->getInnerLocStart(); 13262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo NameInfo 13272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); 132817e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) { 13291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Method = CXXConstructorDecl::Create(SemaRef.Context, Record, 1330ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 13311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Constructor->isExplicit(), 133216573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor Constructor->isInlineSpecified(), 133316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor false); 133417e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor } else if (CXXDestructorDecl *Destructor = dyn_cast<CXXDestructorDecl>(D)) { 133517e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor Method = CXXDestructorDecl::Create(SemaRef.Context, Record, 1336ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 13372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Destructor->isInlineSpecified(), 133816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor false); 133965ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor } else if (CXXConversionDecl *Conversion = dyn_cast<CXXConversionDecl>(D)) { 134065ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor Method = CXXConversionDecl::Create(SemaRef.Context, Record, 1341ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 13420130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor Conversion->isInlineSpecified(), 1343f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor Conversion->isExplicit(), 1344f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor Conversion->getLocEnd()); 1345dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor } else { 13462577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Method = CXXMethodDecl::Create(SemaRef.Context, Record, 1347ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara StartLoc, NameInfo, T, TInfo, 134816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->isStatic(), 134916573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor D->getStorageClassAsWritten(), 1350f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor D->isInlineSpecified(), 1351f52516038ab5d0b1b90a6dd32f46b7d6dabd04c8Douglas Gregor D->getLocEnd()); 1352dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor } 13536b906869527be40b0d38d755e9ef51b331b88162Douglas Gregor 1354c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) 1355c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor Method->setQualifierInfo(QualifierLoc); 1356b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1357d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor if (TemplateParams) { 1358d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // Our resulting instantiation is actually a function template, since we 1359d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // are substituting only the outer template parameters. For example, given 13601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 1361d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // template<typename T> 1362d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // struct X { 1363d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // template<typename U> void f(T, U); 1364d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // }; 1365d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // 1366d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // X<int> x; 1367d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // 1368d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // We are instantiating the member template "f" within X<int>, which means 1369d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // substituting int for T, but leaving "f" as a member function template. 1370d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor // Build the function template itself. 1371d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, Record, 1372d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor Method->getLocation(), 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Method->getDeclName(), 1374d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor TemplateParams, Method); 1375b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) { 1376b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall FunctionTemplate->setLexicalDeclContext(Owner); 1377b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall FunctionTemplate->setObjectOfFriendDecl(true); 1378b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (D->isOutOfLine()) 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionTemplate->setLexicalDeclContext(D->getLexicalDeclContext()); 1380d60e105e6d1624da647ef7dd35a9cf6fad1b763eDouglas Gregor Method->setDescribedFunctionTemplate(FunctionTemplate); 138166724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor } else if (FunctionTemplate) { 138266724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor // Record this function template specialization. 138324bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor std::pair<const TemplateArgument *, unsigned> Innermost 138424bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor = TemplateArgs.getInnermost(); 1385838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Method->setFunctionTemplateSpecialization(FunctionTemplate, 1386910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor TemplateArgumentList::CreateCopy(SemaRef.Context, 1387910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Innermost.first, 1388910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Innermost.second), 138966724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor InsertPos); 1390b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (!isFriend) { 139166724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor // Record that this is an instantiation of a member function. 13922db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor Method->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); 139366724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor } 139466724ea67d7d598b937d86fa66f03f09a1c758f3Douglas Gregor 13951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we are instantiating a member function defined 13967caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // out-of-line, the instantiation will have the same lexical 13977caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // context (which will be a namespace scope) as the template. 1398b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) { 13994eab39f0745fb1949dbb40c4145771b927888242John McCall if (NumTempParamLists) 14004eab39f0745fb1949dbb40c4145771b927888242John McCall Method->setTemplateParameterListsInfo(SemaRef.Context, 14014eab39f0745fb1949dbb40c4145771b927888242John McCall NumTempParamLists, 14024eab39f0745fb1949dbb40c4145771b927888242John McCall TempParamLists.data()); 14034eab39f0745fb1949dbb40c4145771b927888242John McCall 1404b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Method->setLexicalDeclContext(Owner); 1405b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Method->setObjectOfFriendDecl(true); 1406b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (D->isOutOfLine()) 14077caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Method->setLexicalDeclContext(D->getLexicalDeclContext()); 14081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14095545e166a956a20d7a6b58408e251a1119025485Douglas Gregor // Attach the parameters 14105545e166a956a20d7a6b58408e251a1119025485Douglas Gregor for (unsigned P = 0; P < Params.size(); ++P) 14115545e166a956a20d7a6b58408e251a1119025485Douglas Gregor Params[P]->setOwningFunction(Method); 1412838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor Method->setParams(Params.data(), Params.size()); 14135545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 14145545e166a956a20d7a6b58408e251a1119025485Douglas Gregor if (InitMethodInstantiation(Method, D)) 14155545e166a956a20d7a6b58408e251a1119025485Douglas Gregor Method->setInvalidDecl(); 14162dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 14172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName, 14182577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Sema::ForRedeclaration); 14191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1420b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (!FunctionTemplate || TemplateParams || isFriend) { 1421b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall SemaRef.LookupQualifiedName(Previous, Record); 14221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1423dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // In C++, the previous declaration we find might be a tag type 1424dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // (class or enum). In this case, the new declaration will hide the 1425dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // tag type. Note that this does does not apply if we're declaring a 1426dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor // typedef (C++ [dcl.typedef]p4). 14276826314938f8510cd1a6b03b5d032592456ae27bJohn McCall if (Previous.isSingleTagDecl()) 14286826314938f8510cd1a6b03b5d032592456ae27bJohn McCall Previous.clear(); 1429dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor } 14302dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 143165ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor bool Redeclaration = false; 1432c80e8115278ba1537c8b517a083ecbd0a018b579Peter Collingbourne SemaRef.CheckFunctionDeclaration(0, Method, Previous, false, Redeclaration); 143365ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor 14344ba3136b3eb9740a07bd61d0ab23ce9a8d894deeDouglas Gregor if (D->isPure()) 14354ba3136b3eb9740a07bd61d0ab23ce9a8d894deeDouglas Gregor SemaRef.CheckPureMethod(Method, SourceRange()); 14364ba3136b3eb9740a07bd61d0ab23ce9a8d894deeDouglas Gregor 143746460a68f6508775e98c19b4bb8454bb471aac24John McCall Method->setAccess(D->getAccess()); 143846460a68f6508775e98c19b4bb8454bb471aac24John McCall 14399eefa229dfb71400a6bbee326420a7f0e2e91f1fAnders Carlsson SemaRef.CheckOverrideControl(Method); 14409eefa229dfb71400a6bbee326420a7f0e2e91f1fAnders Carlsson 1441b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (FunctionTemplate) { 1442b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall // If there's a function template, let our caller handle it. 1443b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else if (Method->isInvalidDecl() && !Previous.empty()) { 1444b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall // Don't hide a (potentially) valid declaration with an invalid one. 1445b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } else { 1446b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall NamedDecl *DeclToAdd = (TemplateParams 1447b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall ? cast<NamedDecl>(FunctionTemplate) 1448b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall : Method); 1449b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (isFriend) 1450b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Record->makeDeclVisibleInContext(DeclToAdd); 1451b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall else 1452b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall Owner->addDecl(DeclToAdd); 1453b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 1454bbc6454bb98d6a6ecbaafa715222c5db834307f2Argyrios Kyrtzidis 14552dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Method; 14562dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 14572dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1458615c5d4674355ba830b9978f462ca7a8c5d15f85Douglas GregorDecl *TemplateDeclInstantiator::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 1459dec06664a1c4d8984251083db2215875aea1c80dDouglas Gregor return VisitCXXMethodDecl(D); 1460615c5d4674355ba830b9978f462ca7a8c5d15f85Douglas Gregor} 1461615c5d4674355ba830b9978f462ca7a8c5d15f85Douglas Gregor 146203b2b07aaef3a585aec13048a33356c7f635de72Douglas GregorDecl *TemplateDeclInstantiator::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 146317e32f30e2d1eaf6639d3d4e2196a8d7c709fbacDouglas Gregor return VisitCXXMethodDecl(D); 146403b2b07aaef3a585aec13048a33356c7f635de72Douglas Gregor} 146503b2b07aaef3a585aec13048a33356c7f635de72Douglas Gregor 1466bb969ed4193e2eadabfaa0dfd0b94312b6146349Douglas GregorDecl *TemplateDeclInstantiator::VisitCXXConversionDecl(CXXConversionDecl *D) { 146765ec1fda479688d143fe2403242cd9c730c800a1Douglas Gregor return VisitCXXMethodDecl(D); 1468bb969ed4193e2eadabfaa0dfd0b94312b6146349Douglas Gregor} 1469bb969ed4193e2eadabfaa0dfd0b94312b6146349Douglas Gregor 14706477b69cc93e0a0ff15036d60d604f3544da0f29Douglas GregorParmVarDecl *TemplateDeclInstantiator::VisitParmVarDecl(ParmVarDecl *D) { 1471fb44de956f27875def889482b5393475060392afJohn McCall return SemaRef.SubstParmVarDecl(D, TemplateArgs, /*indexAdjustment*/ 0, 1472fb44de956f27875def889482b5393475060392afJohn McCall llvm::Optional<unsigned>()); 14732dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 14742dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 1475e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCallDecl *TemplateDeclInstantiator::VisitTemplateTypeParmDecl( 1476e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateTypeParmDecl *D) { 1477e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall // TODO: don't always clone when decls are refcounted. 14784fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth assert(D->getTypeForDecl()->isTemplateTypeParmType()); 14791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1480e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateTypeParmDecl *Inst = 1481344577e6b58f42d18dc8118c8903b49a85dc005eAbramo Bagnara TemplateTypeParmDecl::Create(SemaRef.Context, Owner, 1482344577e6b58f42d18dc8118c8903b49a85dc005eAbramo Bagnara D->getLocStart(), D->getLocation(), 14834fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth D->getDepth() - TemplateArgs.getNumLevels(), 14844fb86f8c4585e53c21c847ad3de9e3b2de123cd9Chandler Carruth D->getIndex(), D->getIdentifier(), 1485e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall D->wasDeclaredWithTypename(), 1486e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall D->isParameterPack()); 14879a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor Inst->setAccess(AS_public); 14889a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor 14890f8716b7bb25d61a82f699b3975167451f7b5a68Douglas Gregor if (D->hasDefaultArgument()) 14900f8716b7bb25d61a82f699b3975167451f7b5a68Douglas Gregor Inst->setDefaultArgument(D->getDefaultArgumentInfo(), false); 1491e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1492550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Introduce this template parameter's instantiation into the instantiation 1493550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // scope. 1494550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Inst); 1495550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor 1496e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return Inst; 1497e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall} 1498e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 149933642df30088f2ddb0b22c609523ab8df9dff595Douglas GregorDecl *TemplateDeclInstantiator::VisitNonTypeTemplateParmDecl( 150033642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor NonTypeTemplateParmDecl *D) { 150133642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor // Substitute into the type of the non-type template parameter. 15026952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeLoc TL = D->getTypeSourceInfo()->getTypeLoc(); 15036952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::SmallVector<TypeSourceInfo *, 4> ExpandedParameterPackTypesAsWritten; 15046952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::SmallVector<QualType, 4> ExpandedParameterPackTypes; 15056952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool IsExpandedParameterPack = false; 15066952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *DI; 150733642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor QualType T; 150833642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor bool Invalid = false; 15096952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15106952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (D->isExpandedParameterPack()) { 15116952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // The non-type template parameter pack is an already-expanded pack 15126952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // expansion of types. Substitute into each of the expanded types. 15136952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.reserve(D->getNumExpansionTypes()); 15146952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.reserve(D->getNumExpansionTypes()); 15156952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 15166952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *NewDI =SemaRef.SubstType(D->getExpansionTypeSourceInfo(I), 15176952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TemplateArgs, 15186952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 15196952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDeclName()); 15206952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!NewDI) 15216952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15226952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15236952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.push_back(NewDI); 15246952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor QualType NewT =SemaRef.CheckNonTypeTemplateParameterType(NewDI->getType(), 15256952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation()); 15266952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (NewT.isNull()) 15276952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15286952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.push_back(NewT); 15296952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 15306952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15316952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor IsExpandedParameterPack = true; 15326952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = D->getTypeSourceInfo(); 15336952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = DI->getType(); 15346952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } else if (isa<PackExpansionTypeLoc>(TL)) { 15356952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // The non-type template parameter pack's type is a pack expansion of types. 15366952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Determine whether we need to expand this parameter pack into separate 15376952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // types. 15386952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor PackExpansionTypeLoc Expansion = cast<PackExpansionTypeLoc>(TL); 15396952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeLoc Pattern = Expansion.getPatternLoc(); 15406952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; 15416952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor SemaRef.collectUnexpandedParameterPacks(Pattern, Unexpanded); 15426952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15436952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Determine whether the set of unexpanded parameter packs can and should 15446952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // be expanded. 15456952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool Expand = true; 15466952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool RetainExpansion = false; 15476952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::Optional<unsigned> OrigNumExpansions 15486952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor = Expansion.getTypePtr()->getNumExpansions(); 15496952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor llvm::Optional<unsigned> NumExpansions = OrigNumExpansions; 15506952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (SemaRef.CheckParameterPacksForExpansion(Expansion.getEllipsisLoc(), 15516952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Pattern.getSourceRange(), 15526952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Unexpanded.data(), 15536952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Unexpanded.size(), 15546952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TemplateArgs, 15556952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Expand, RetainExpansion, 15566952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NumExpansions)) 15576952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15586952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15596952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (Expand) { 15606952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor for (unsigned I = 0; I != *NumExpansions; ++I) { 15616952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, I); 15626952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *NewDI = SemaRef.SubstType(Pattern, TemplateArgs, 15636952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 15646952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDeclName()); 15656952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!NewDI) 15666952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15676952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15686952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.push_back(NewDI); 15696952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor QualType NewT = SemaRef.CheckNonTypeTemplateParameterType( 15706952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NewDI->getType(), 15716952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation()); 15726952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (NewT.isNull()) 15736952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15746952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.push_back(NewT); 15756952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 15766952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15776952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Note that we have an expanded parameter pack. The "type" of this 15786952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // expanded parameter pack is the original expansion type, but callers 15796952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // will end up using the expanded parameter pack types for type-checking. 15806952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor IsExpandedParameterPack = true; 15816952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = D->getTypeSourceInfo(); 15826952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = DI->getType(); 15836952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } else { 15846952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // We cannot fully expand the pack expansion now, so substitute into the 15856952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // pattern and create a new pack expansion type. 15866952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); 15876952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor TypeSourceInfo *NewPattern = SemaRef.SubstType(Pattern, TemplateArgs, 15886952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 15896952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDeclName()); 15906952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!NewPattern) 15916952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15926952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15936952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = SemaRef.CheckPackExpansion(NewPattern, Expansion.getEllipsisLoc(), 15946952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NumExpansions); 15956952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!DI) 15966952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 15976952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 15986952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = DI->getType(); 15996952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 16006952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } else { 16016952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Simple case: substitution into a parameter that is not a parameter pack. 16026952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI = SemaRef.SubstType(D->getTypeSourceInfo(), TemplateArgs, 16036952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), D->getDeclName()); 16046952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!DI) 16056952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor return 0; 16066952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16076952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor // Check that this type is acceptable for a non-type template parameter. 16086952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor bool Invalid = false; 16096952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = SemaRef.CheckNonTypeTemplateParameterType(DI->getType(), 16106952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation()); 16116952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (T.isNull()) { 16126952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor T = SemaRef.Context.IntTy; 16136952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Invalid = true; 16146952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 161533642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor } 161633642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor 16176952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor NonTypeTemplateParmDecl *Param; 16186952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (IsExpandedParameterPack) 16196952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, 1620ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getInnerLocStart(), 1621ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getLocation(), 162271b87e4fa6bfb47107b099135864f9024004a4c9Douglas Gregor D->getDepth() - TemplateArgs.getNumLevels(), 16236952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getPosition(), 16246952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getIdentifier(), T, 16256952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DI, 16266952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.data(), 16276952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypes.size(), 16286952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor ExpandedParameterPackTypesAsWritten.data()); 16296952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 16306952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, 1631ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara D->getInnerLocStart(), 16326952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getLocation(), 16336952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getDepth() - TemplateArgs.getNumLevels(), 16346952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getPosition(), 16356952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->getIdentifier(), T, 16366952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor D->isParameterPack(), DI); 16376952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 16389a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor Param->setAccess(AS_public); 163933642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor if (Invalid) 164033642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor Param->setInvalidDecl(); 164133642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor 1642d92f7a297c0ed3f7d0ebcbb557e1d4c1925b8c72Abramo Bagnara Param->setDefaultArgument(D->getDefaultArgument(), false); 1643550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor 1644550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Introduce this template parameter's instantiation into the instantiation 1645550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // scope. 1646550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); 164733642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor return Param; 164833642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor} 164933642df30088f2ddb0b22c609523ab8df9dff595Douglas Gregor 16500dde18e5a713bc186062ca1ebc9967500b07faeeAnders CarlssonDecl * 16519106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas GregorTemplateDeclInstantiator::VisitTemplateTemplateParmDecl( 16529106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateTemplateParmDecl *D) { 16539106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Instantiate the template parameter list of the template template parameter. 16549106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateParameterList *TempParams = D->getTemplateParameters(); 16559106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateParameterList *InstParams; 16569106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor { 16579106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Perform the actual substitution of template parameters within a new, 16589106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // local instantiation scope. 16592a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 16609106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor InstParams = SubstTemplateParams(TempParams); 16619106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor if (!InstParams) 16629106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor return NULL; 16639106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor } 16649106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor 16659106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Build the template template parameter. 16669106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor TemplateTemplateParmDecl *Param 16679106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor = TemplateTemplateParmDecl::Create(SemaRef.Context, Owner, D->getLocation(), 166871b87e4fa6bfb47107b099135864f9024004a4c9Douglas Gregor D->getDepth() - TemplateArgs.getNumLevels(), 166961c4d28e36cd3f1be392cb77f07436d1fa6b0f9fDouglas Gregor D->getPosition(), D->isParameterPack(), 167061c4d28e36cd3f1be392cb77f07436d1fa6b0f9fDouglas Gregor D->getIdentifier(), InstParams); 1671d92f7a297c0ed3f7d0ebcbb557e1d4c1925b8c72Abramo Bagnara Param->setDefaultArgument(D->getDefaultArgument(), false); 16729a299e0575ce235f491014627c7267e2d2cd73deDouglas Gregor Param->setAccess(AS_public); 16734469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor 16749106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // Introduce this template parameter's instantiation into the instantiation 16759106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor // scope. 16769106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); 16779106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor 16789106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor return Param; 16799106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor} 16809106ef78f8fcc9df1a60c7a5b64c7d967194207eDouglas Gregor 168148c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas GregorDecl *TemplateDeclInstantiator::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 1682db9924191092b4d426cc066637d81698211846aaDouglas Gregor // Using directives are never dependent (and never contain any types or 1683db9924191092b4d426cc066637d81698211846aaDouglas Gregor // expressions), so they require no explicit instantiation work. 168448c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor 168548c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor UsingDirectiveDecl *Inst 168648c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor = UsingDirectiveDecl::Create(SemaRef.Context, Owner, D->getLocation(), 168748c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getNamespaceKeyLocation(), 1688db9924191092b4d426cc066637d81698211846aaDouglas Gregor D->getQualifierLoc(), 168948c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getIdentLocation(), 169048c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getNominatedNamespace(), 169148c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor D->getCommonAncestor()); 169248c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor Owner->addDecl(Inst); 169348c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor return Inst; 169448c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor} 169548c32a7e7c977f317dc1dc19524c2f54d29c7270Douglas Gregor 1696ed97649e9574b9d854fa4d6109c9333ae0993554John McCallDecl *TemplateDeclInstantiator::VisitUsingDecl(UsingDecl *D) { 16971b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor 16981b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // The nested name specifier may be dependent, for example 16991b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // template <typename T> struct t { 17001b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // struct s1 { T f1(); }; 17011b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // struct s2 : s1 { using s1::f1; }; 17021b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // }; 17031b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // template struct t<int>; 17041b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // Here, in using s1::f1, s1 refers to t<T>::s1; 17051b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // we need to substitute for t<int>::s1. 17065149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor NestedNameSpecifierLoc QualifierLoc 17075149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), 17085149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor TemplateArgs); 17095149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor if (!QualifierLoc) 1710dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor return 0; 17111b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor 17121b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // The name info is non-dependent, so no transformation 17131b398205267ea69f35230eea50e0225db22ebb7eDouglas Gregor // is required. 1714ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara DeclarationNameInfo NameInfo = D->getNameInfo(); 1715ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 17169f54ad4381370c6b771424b53d219e661d6d6706John McCall // We only need to do redeclaration lookups if we're in a class 17179f54ad4381370c6b771424b53d219e661d6d6706John McCall // scope (in fact, it's not really even possible in non-class 17189f54ad4381370c6b771424b53d219e661d6d6706John McCall // scopes). 17199f54ad4381370c6b771424b53d219e661d6d6706John McCall bool CheckRedeclaration = Owner->isRecord(); 17209f54ad4381370c6b771424b53d219e661d6d6706John McCall 1721ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara LookupResult Prev(SemaRef, NameInfo, Sema::LookupUsingDeclName, 1722ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara Sema::ForRedeclaration); 17239f54ad4381370c6b771424b53d219e661d6d6706John McCall 1724ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingDecl *NewUD = UsingDecl::Create(SemaRef.Context, Owner, 1725ed97649e9574b9d854fa4d6109c9333ae0993554John McCall D->getUsingLocation(), 17265149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor QualifierLoc, 1727ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara NameInfo, 1728ed97649e9574b9d854fa4d6109c9333ae0993554John McCall D->isTypeName()); 1729ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 17305149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor CXXScopeSpec SS; 17315149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor SS.Adopt(QualifierLoc); 17329f54ad4381370c6b771424b53d219e661d6d6706John McCall if (CheckRedeclaration) { 17339f54ad4381370c6b771424b53d219e661d6d6706John McCall Prev.setHideTags(false); 17349f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.LookupQualifiedName(Prev, Owner); 17359f54ad4381370c6b771424b53d219e661d6d6706John McCall 17369f54ad4381370c6b771424b53d219e661d6d6706John McCall // Check for invalid redeclarations. 17379f54ad4381370c6b771424b53d219e661d6d6706John McCall if (SemaRef.CheckUsingDeclRedeclaration(D->getUsingLocation(), 17389f54ad4381370c6b771424b53d219e661d6d6706John McCall D->isTypeName(), SS, 17399f54ad4381370c6b771424b53d219e661d6d6706John McCall D->getLocation(), Prev)) 17409f54ad4381370c6b771424b53d219e661d6d6706John McCall NewUD->setInvalidDecl(); 17419f54ad4381370c6b771424b53d219e661d6d6706John McCall 17429f54ad4381370c6b771424b53d219e661d6d6706John McCall } 17439f54ad4381370c6b771424b53d219e661d6d6706John McCall 17449f54ad4381370c6b771424b53d219e661d6d6706John McCall if (!NewUD->isInvalidDecl() && 17459f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.CheckUsingDeclQualifier(D->getUsingLocation(), SS, 1746ed97649e9574b9d854fa4d6109c9333ae0993554John McCall D->getLocation())) 1747ed97649e9574b9d854fa4d6109c9333ae0993554John McCall NewUD->setInvalidDecl(); 17489f54ad4381370c6b771424b53d219e661d6d6706John McCall 1749ed97649e9574b9d854fa4d6109c9333ae0993554John McCall SemaRef.Context.setInstantiatedFromUsingDecl(NewUD, D); 1750ed97649e9574b9d854fa4d6109c9333ae0993554John McCall NewUD->setAccess(D->getAccess()); 1751ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Owner->addDecl(NewUD); 1752ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 17539f54ad4381370c6b771424b53d219e661d6d6706John McCall // Don't process the shadow decls for an invalid decl. 17549f54ad4381370c6b771424b53d219e661d6d6706John McCall if (NewUD->isInvalidDecl()) 17559f54ad4381370c6b771424b53d219e661d6d6706John McCall return NewUD; 17569f54ad4381370c6b771424b53d219e661d6d6706John McCall 1757323c310efa0abd7a786b0303501186b5f33eb8d7John McCall bool isFunctionScope = Owner->isFunctionOrMethod(); 1758323c310efa0abd7a786b0303501186b5f33eb8d7John McCall 17599f54ad4381370c6b771424b53d219e661d6d6706John McCall // Process the shadow decls. 17609f54ad4381370c6b771424b53d219e661d6d6706John McCall for (UsingDecl::shadow_iterator I = D->shadow_begin(), E = D->shadow_end(); 17619f54ad4381370c6b771424b53d219e661d6d6706John McCall I != E; ++I) { 17629f54ad4381370c6b771424b53d219e661d6d6706John McCall UsingShadowDecl *Shadow = *I; 17639f54ad4381370c6b771424b53d219e661d6d6706John McCall NamedDecl *InstTarget = 1764b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor cast_or_null<NamedDecl>(SemaRef.FindInstantiatedDecl( 1765b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor Shadow->getLocation(), 1766b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor Shadow->getTargetDecl(), 1767b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor TemplateArgs)); 1768b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!InstTarget) 1769b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor return 0; 17709f54ad4381370c6b771424b53d219e661d6d6706John McCall 17719f54ad4381370c6b771424b53d219e661d6d6706John McCall if (CheckRedeclaration && 17729f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.CheckUsingShadowDecl(NewUD, InstTarget, Prev)) 17739f54ad4381370c6b771424b53d219e661d6d6706John McCall continue; 17749f54ad4381370c6b771424b53d219e661d6d6706John McCall 17759f54ad4381370c6b771424b53d219e661d6d6706John McCall UsingShadowDecl *InstShadow 17769f54ad4381370c6b771424b53d219e661d6d6706John McCall = SemaRef.BuildUsingShadowDecl(/*Scope*/ 0, NewUD, InstTarget); 17779f54ad4381370c6b771424b53d219e661d6d6706John McCall SemaRef.Context.setInstantiatedFromUsingShadowDecl(InstShadow, Shadow); 1778323c310efa0abd7a786b0303501186b5f33eb8d7John McCall 1779323c310efa0abd7a786b0303501186b5f33eb8d7John McCall if (isFunctionScope) 1780323c310efa0abd7a786b0303501186b5f33eb8d7John McCall SemaRef.CurrentInstantiationScope->InstantiatedLocal(Shadow, InstShadow); 17819f54ad4381370c6b771424b53d219e661d6d6706John McCall } 1782ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 1783ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return NewUD; 1784ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 1785ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 1786ed97649e9574b9d854fa4d6109c9333ae0993554John McCallDecl *TemplateDeclInstantiator::VisitUsingShadowDecl(UsingShadowDecl *D) { 17879f54ad4381370c6b771424b53d219e661d6d6706John McCall // Ignore these; we handle them in bulk when processing the UsingDecl. 17889f54ad4381370c6b771424b53d219e661d6d6706John McCall return 0; 1789ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 1790ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 17917ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallDecl * TemplateDeclInstantiator 17927ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall ::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { 17935149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor NestedNameSpecifierLoc QualifierLoc 17945149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), 17955149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor TemplateArgs); 17965149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor if (!QualifierLoc) 17977ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall return 0; 17987ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 17997ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall CXXScopeSpec SS; 18005149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor SS.Adopt(QualifierLoc); 18017ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 1802ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara // Since NameInfo refers to a typename, it cannot be a C++ special name. 1803ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara // Hence, no tranformation is required for it. 1804ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara DeclarationNameInfo NameInfo(D->getDeclName(), D->getLocation()); 18057ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall NamedDecl *UD = 18067ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), 1807ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara D->getUsingLoc(), SS, NameInfo, 0, 18087ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*instantiation*/ true, 18097ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*typename*/ true, D->getTypenameLoc()); 18104469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor if (UD) 1811ed97649e9574b9d854fa4d6109c9333ae0993554John McCall SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); 1812ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 18137ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall return UD; 18147ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall} 18157ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 18167ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallDecl * TemplateDeclInstantiator 18177ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall ::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 18185149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor NestedNameSpecifierLoc QualifierLoc 18195149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), TemplateArgs); 18205149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor if (!QualifierLoc) 18210dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson return 0; 18225149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor 18230dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson CXXScopeSpec SS; 18245149f37cfc736d03233bf92b5ba7c6e866c6647bDouglas Gregor SS.Adopt(QualifierLoc); 18251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1826ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara DeclarationNameInfo NameInfo 1827ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); 1828ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NamedDecl *UD = 18309488ea120e093068021f944176c3d610dd540914John McCall SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), 1831ef3dce817d43faadbf21ce9102d33a9d84b02e09Abramo Bagnara D->getUsingLoc(), SS, NameInfo, 0, 18327ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*instantiation*/ true, 18337ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall /*typename*/ false, SourceLocation()); 18344469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor if (UD) 1835ed97649e9574b9d854fa4d6109c9333ae0993554John McCall SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); 1836ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 18370d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return UD; 18380dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson} 18390dde18e5a713bc186062ca1ebc9967500b07faeeAnders Carlsson 1840ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCallDecl *Sema::SubstDecl(Decl *D, DeclContext *Owner, 1841d6350aefb1396b299e199c7f1fe51bb40c12e75eDouglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs) { 18427e06390f8a60440d6fc5f0e633acdc2edd8ee924Douglas Gregor TemplateDeclInstantiator Instantiator(*this, Owner, TemplateArgs); 18432fa98001f832836e3f652c211a9d2f80501d659aDouglas Gregor if (D->isInvalidDecl()) 18442fa98001f832836e3f652c211a9d2f80501d659aDouglas Gregor return 0; 18452fa98001f832836e3f652c211a9d2f80501d659aDouglas Gregor 18468dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor return Instantiator.Visit(D); 18478dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor} 18488dbc2694424b4e842b1d5ea39744a137b58600c3Douglas Gregor 1849e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// \brief Instantiates a nested template parameter list in the current 1850e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// instantiation context. 1851e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// 1852e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// \param L The parameter list to instantiate 1853e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// 1854e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall/// \returns NULL if there was an error 1855e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCallTemplateParameterList * 1856ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCallTemplateDeclInstantiator::SubstTemplateParams(TemplateParameterList *L) { 1857e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall // Get errors for all the parameters before bailing out. 1858e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall bool Invalid = false; 1859e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1860e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall unsigned N = L->size(); 1861bf4ea56cdc376cef5a12abf6bf18dc34805c2226Douglas Gregor typedef llvm::SmallVector<NamedDecl *, 8> ParamVector; 1862e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall ParamVector Params; 1863e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall Params.reserve(N); 1864e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall for (TemplateParameterList::iterator PI = L->begin(), PE = L->end(); 1865e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall PI != PE; ++PI) { 1866bf4ea56cdc376cef5a12abf6bf18dc34805c2226Douglas Gregor NamedDecl *D = cast_or_null<NamedDecl>(Visit(*PI)); 1867e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall Params.push_back(D); 18689148c3f5829f4d031249faeb1043e7be914539e8Douglas Gregor Invalid = Invalid || !D || D->isInvalidDecl(); 1869e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall } 1870e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1871e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall // Clean up if we had an error. 1872ff331c15729f7d4439d253c97f4d60f2a7ffd0c6Douglas Gregor if (Invalid) 1873e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return NULL; 1874e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1875e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall TemplateParameterList *InstL 1876e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall = TemplateParameterList::Create(SemaRef.Context, L->getTemplateLoc(), 1877e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall L->getLAngleLoc(), &Params.front(), N, 1878e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall L->getRAngleLoc()); 1879e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall return InstL; 18801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump} 1881e29ba20148e9b7835ad463b39cd4ee9223eafbbfJohn McCall 1882ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// \brief Instantiate the declaration of a class template partial 1883ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// specialization. 1884ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// 1885ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// \param ClassTemplate the (instantiated) class template that is partially 1886ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor// specialized by the instantiation of \p PartialSpec. 1887ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// 1888ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// \param PartialSpec the (uninstantiated) class template partial 1889ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// specialization that we are instantiating. 1890ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor/// 1891d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor/// \returns The instantiated partial specialization, if successful; otherwise, 1892d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor/// NULL to indicate an error. 1893d65587f7a6d38965fa37158d3f57990a7faf3836Douglas GregorClassTemplatePartialSpecializationDecl * 1894ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas GregorTemplateDeclInstantiator::InstantiateClassTemplatePartialSpecialization( 1895ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateDecl *ClassTemplate, 1896ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplatePartialSpecializationDecl *PartialSpec) { 1897550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // Create a local instantiation scope for this class template partial 1898550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // specialization, which will contain the instantiations of the template 1899550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor // parameters. 19002a7fb27913999d132cf9e10e03dc5271faa2e9d3John McCall LocalInstantiationScope Scope(SemaRef); 1901550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor 1902ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Substitute into the template parameters of the class template partial 1903ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specialization. 1904ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor TemplateParameterList *TempParams = PartialSpec->getTemplateParameters(); 1905ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor TemplateParameterList *InstParams = SubstTemplateParams(TempParams); 1906ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (!InstParams) 1907d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return 0; 1908ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1909ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Substitute into the template arguments of the class template partial 1910ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specialization. 1911d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall TemplateArgumentListInfo InstTemplateArgs; // no angle locations 1912e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor if (SemaRef.Subst(PartialSpec->getTemplateArgsAsWritten(), 1913e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor PartialSpec->getNumTemplateArgsAsWritten(), 1914e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor InstTemplateArgs, TemplateArgs)) 1915e02e26293cf8e3bad1059b39cea75c6582896da6Douglas Gregor return 0; 1916ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1917ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Check that the template argument list is well-formed for this 1918ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // class template. 1919910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor llvm::SmallVector<TemplateArgument, 4> Converted; 1920ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (SemaRef.CheckTemplateArgumentList(ClassTemplate, 1921ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor PartialSpec->getLocation(), 1922d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall InstTemplateArgs, 1923ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor false, 1924ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Converted)) 1925d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return 0; 1926ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1927ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Figure out where to insert this class template partial specialization 1928ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // in the member template's set of class template partial specializations. 1929ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor void *InsertPos = 0; 1930ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplateSpecializationDecl *PrevDecl 1931910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor = ClassTemplate->findPartialSpecialization(Converted.data(), 1932910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.size(), InsertPos); 1933ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1934ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Build the canonical type that describes the converted template 1935ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // arguments of the class template partial specialization. 1936ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor QualType CanonType 1937ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = SemaRef.Context.getTemplateSpecializationType(TemplateName(ClassTemplate), 1938910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.data(), 1939910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.size()); 1940ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1941ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Build the fully-sugared type for this class template 1942ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specialization as the user wrote in the specialization 1943ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // itself. This means that we'll pretty-print the type retrieved 1944ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // from the specialization's declaration the way that the user 1945ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // actually wrote the specialization, rather than formatting the 1946ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // name based on the "canonical" representation used to store the 1947ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template arguments in the specialization. 19483cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TypeSourceInfo *WrittenTy 19493cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = SemaRef.Context.getTemplateSpecializationTypeInfo( 19503cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TemplateName(ClassTemplate), 19513cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall PartialSpec->getLocation(), 1952d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall InstTemplateArgs, 1953ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor CanonType); 1954ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1955ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (PrevDecl) { 1956ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // We've already seen a partial specialization with the same template 1957ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // parameters and template arguments. This can happen, for example, when 1958ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // substituting the outer template arguments ends up causing two 1959ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // class template partial specializations of a member class template 1960ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // to have identical forms, e.g., 1961ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // 1962ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename T, typename U> 1963ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // struct Outer { 1964ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename X, typename Y> struct Inner; 1965ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename Y> struct Inner<T, Y>; 1966ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // template<typename Y> struct Inner<U, Y>; 1967ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // }; 1968ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // 1969ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Outer<int, int> outer; // error: the partial specializations of Inner 1970ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // // have the same signature. 1971ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor SemaRef.Diag(PartialSpec->getLocation(), diag::err_partial_spec_redeclared) 1972d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor << WrittenTy->getType(); 1973ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor SemaRef.Diag(PrevDecl->getLocation(), diag::note_prev_partial_spec_here) 1974ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor << SemaRef.Context.getTypeDeclType(PrevDecl); 1975d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return 0; 1976ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor } 1977ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1978ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 1979ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Create the class template partial specialization declaration. 1980ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplatePartialSpecializationDecl *InstPartialSpec 198113c8577201e4fc0ddac5f09d05fd1778832137d1Douglas Gregor = ClassTemplatePartialSpecializationDecl::Create(SemaRef.Context, 198213c8577201e4fc0ddac5f09d05fd1778832137d1Douglas Gregor PartialSpec->getTagKind(), 198313c8577201e4fc0ddac5f09d05fd1778832137d1Douglas Gregor Owner, 1984ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara PartialSpec->getLocStart(), 1985ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara PartialSpec->getLocation(), 1986ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor InstParams, 1987ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplate, 1988910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.data(), 1989910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor Converted.size(), 1990d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall InstTemplateArgs, 19913cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall CanonType, 1992dc60c1eb4acbde6edcec9760de92f9098593d915Douglas Gregor 0, 1993cc0b1bc979b650a8a8b34b2032a074fd7724a90dArgyrios Kyrtzidis ClassTemplate->getNextPartialSpecSequenceNumber()); 1994b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Substitute the nested name specifier, if any. 1995b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (SubstQualifier(PartialSpec, InstPartialSpec)) 1996b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall return 0; 1997b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 1998ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor InstPartialSpec->setInstantiatedFromMember(PartialSpec); 19994469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor InstPartialSpec->setTypeAsWritten(WrittenTy); 20004469e8a97cdca3725b4f8f366916143113c029acDouglas Gregor 2001ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // Add this partial specialization to the set of class template partial 2002ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor // specializations. 2003cc0b1bc979b650a8a8b34b2032a074fd7724a90dArgyrios Kyrtzidis ClassTemplate->AddPartialSpecialization(InstPartialSpec, InsertPos); 2004d65587f7a6d38965fa37158d3f57990a7faf3836Douglas Gregor return InstPartialSpec; 2005ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor} 2006ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 200721ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCallTypeSourceInfo* 200821ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCallTemplateDeclInstantiator::SubstFunctionType(FunctionDecl *D, 200921ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall llvm::SmallVectorImpl<ParmVarDecl *> &Params) { 201021ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall TypeSourceInfo *OldTInfo = D->getTypeSourceInfo(); 201121ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall assert(OldTInfo && "substituting function without type source info"); 201221ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall assert(Params.empty() && "parameter vector is non-empty at start"); 20136cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall TypeSourceInfo *NewTInfo 20146cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall = SemaRef.SubstFunctionDeclType(OldTInfo, TemplateArgs, 20156cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall D->getTypeSpecStartLoc(), 20166cd3b9fb8a29bb70fff01719bdde238723d67c10John McCall D->getDeclName()); 201721ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall if (!NewTInfo) 201821ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall return 0; 20195545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 2020cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor if (NewTInfo != OldTInfo) { 2021cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // Get parameters from the new type info. 2022140a2bd77539b4537010d8cd6a0a3805ce724b3eAbramo Bagnara TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); 20236920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor if (FunctionProtoTypeLoc *OldProtoLoc 20246920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { 2025140a2bd77539b4537010d8cd6a0a3805ce724b3eAbramo Bagnara TypeLoc NewTL = NewTInfo->getTypeLoc().IgnoreParens(); 20266920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor FunctionProtoTypeLoc *NewProtoLoc = cast<FunctionProtoTypeLoc>(&NewTL); 20276920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor assert(NewProtoLoc && "Missing prototype?"); 202812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor unsigned NewIdx = 0, NumNewParams = NewProtoLoc->getNumArgs(); 202912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor for (unsigned OldIdx = 0, NumOldParams = OldProtoLoc->getNumArgs(); 203012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor OldIdx != NumOldParams; ++OldIdx) { 203112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *OldParam = OldProtoLoc->getArg(OldIdx); 203212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor if (!OldParam->isParameterPack() || 203312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor (NewIdx < NumNewParams && 203412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor NewProtoLoc->getArg(NewIdx)->isParameterPack())) { 203512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Simple case: normal parameter, or a parameter pack that's 203612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // instantiated to a (still-dependent) parameter pack. 203712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); 203812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Params.push_back(NewParam); 203912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocal(OldParam, 204012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor NewParam); 204112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor continue; 204212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 204312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor 204412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Parameter pack: make the instantiation an argument pack. 204512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor SemaRef.CurrentInstantiationScope->MakeInstantiatedLocalArgPack( 204612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor OldParam); 204721371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor unsigned NumArgumentsInExpansion 204821371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor = SemaRef.getNumArgumentsInExpansion(OldParam->getType(), 204921371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor TemplateArgs); 205021371ea7cf647f4f0f783faac325925cb8febb1cDouglas Gregor while (NumArgumentsInExpansion--) { 205112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); 205212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Params.push_back(NewParam); 205312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor SemaRef.CurrentInstantiationScope->InstantiatedLocalPackArg(OldParam, 205412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor NewParam); 205512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 20566920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor } 2057895162da2d52f4243f61081d7436de66af4503fcDouglas Gregor } 2058cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor } else { 2059cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // The function type itself was not dependent and therefore no 2060cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // substitution occurred. However, we still need to instantiate 2061cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor // the function parameters themselves. 2062140a2bd77539b4537010d8cd6a0a3805ce724b3eAbramo Bagnara TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); 20636920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor if (FunctionProtoTypeLoc *OldProtoLoc 20646920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { 20656920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor for (unsigned i = 0, i_end = OldProtoLoc->getNumArgs(); i != i_end; ++i) { 20666920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor ParmVarDecl *Parm = VisitParmVarDecl(OldProtoLoc->getArg(i)); 20676920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor if (!Parm) 20686920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor return 0; 20696920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor Params.push_back(Parm); 20706920cdce298ac9ba50dc7ebb7dea982a300b0664Douglas Gregor } 2071cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor } 2072cb27b0f70d2017295776afafe3616e0bcd74ab51Douglas Gregor } 207321ef0fa27b0783ec0bc6aa5b524feb2ec840f952John McCall return NewTInfo; 20745545e166a956a20d7a6b58408e251a1119025485Douglas Gregor} 20755545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 20761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Initializes the common fields of an instantiation function 2077e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor/// declaration (New) from the corresponding fields of its template (Tmpl). 2078e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor/// 2079e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor/// \returns true if there was an error 20801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpbool 20811eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateDeclInstantiator::InitFunctionInstantiation(FunctionDecl *New, 2082e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor FunctionDecl *Tmpl) { 2083e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (Tmpl->isDeleted()) 2084e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor New->setDeleted(); 20851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2086cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // If we are performing substituting explicitly-specified template arguments 2087cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // or deduced template arguments into a function template and we reach this 2088cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // point, we are now past the point where SFINAE applies and have committed 20891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to keeping the new function template specialization. We therefore 20901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // convert the active template instantiation for the function template 2091cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // into a template instantiation for this specific function template 2092cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // specialization, which is not a SFINAE context, so that we diagnose any 2093cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor // further errors in the declaration itself. 2094cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor typedef Sema::ActiveTemplateInstantiation ActiveInstType; 2095cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInstType &ActiveInst = SemaRef.ActiveTemplateInstantiations.back(); 2096cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor if (ActiveInst.Kind == ActiveInstType::ExplicitTemplateArgumentSubstitution || 2097cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInst.Kind == ActiveInstType::DeducedTemplateArgumentSubstitution) { 20981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionTemplateDecl *FunTmpl 2099cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor = dyn_cast<FunctionTemplateDecl>((Decl *)ActiveInst.Entity)) { 21001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(FunTmpl->getTemplatedDecl() == Tmpl && 2101cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor "Deduction from the wrong function template?"); 2102bcbb8bd3326a86aa70b7df386ae3c86c9ad255c5Daniel Dunbar (void) FunTmpl; 2103cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInst.Kind = ActiveInstType::TemplateInstantiation; 2104cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor ActiveInst.Entity = reinterpret_cast<uintptr_t>(New); 2105f35f828f9883123772a9731af190a608f3236ef4Douglas Gregor --SemaRef.NonInstantiationEntries; 2106cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor } 2107cca9e9674a5e50a283185d8e9d8a5c3414eb008eDouglas Gregor } 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21090ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor const FunctionProtoType *Proto = Tmpl->getType()->getAs<FunctionProtoType>(); 21100ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor assert(Proto && "Function template without prototype?"); 21110ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 211260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (Proto->hasExceptionSpec() || Proto->getNoReturnAttr()) { 21130ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // The function has an exception specification or a "noreturn" 21140ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // attribute. Substitute into each of the exception types. 21150ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor llvm::SmallVector<QualType, 4> Exceptions; 21160ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor for (unsigned I = 0, N = Proto->getNumExceptions(); I != N; ++I) { 21170ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // FIXME: Poor location information! 2118b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (const PackExpansionType *PackExpansion 2119b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor = Proto->getExceptionType(I)->getAs<PackExpansionType>()) { 2120b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor // We have a pack expansion. Instantiate it. 2121b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; 2122b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor SemaRef.collectUnexpandedParameterPacks(PackExpansion->getPattern(), 2123b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Unexpanded); 2124b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor assert(!Unexpanded.empty() && 2125b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor "Pack expansion without parameter packs?"); 212660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2127b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor bool Expand = false; 2128d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor bool RetainExpansion = false; 2129cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions 2130cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor = PackExpansion->getNumExpansions(); 2131b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (SemaRef.CheckParameterPacksForExpansion(New->getLocation(), 2132b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor SourceRange(), 2133b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Unexpanded.data(), 2134b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Unexpanded.size(), 2135b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor TemplateArgs, 2136d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor Expand, 2137d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor RetainExpansion, 2138d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor NumExpansions)) 2139b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 214060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2141b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (!Expand) { 2142b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor // We can't expand this pack expansion into separate arguments yet; 2143cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor // just substitute into the pattern and create a new pack expansion 2144cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor // type. 2145b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); 2146b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor QualType T = SemaRef.SubstType(PackExpansion->getPattern(), 2147b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor TemplateArgs, 2148b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor New->getLocation(), New->getDeclName()); 2149b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (T.isNull()) 2150b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 2151b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor 2152cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = SemaRef.Context.getPackExpansionType(T, NumExpansions); 2153b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Exceptions.push_back(T); 2154b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor continue; 2155b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 215660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2157b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor // Substitute into the pack expansion pattern for each template 2158b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor bool Invalid = false; 2159cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor for (unsigned ArgIdx = 0; ArgIdx != *NumExpansions; ++ArgIdx) { 2160b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, ArgIdx); 2161b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor 2162b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor QualType T = SemaRef.SubstType(PackExpansion->getPattern(), 2163b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor TemplateArgs, 2164b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor New->getLocation(), New->getDeclName()); 2165b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (T.isNull()) { 2166b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Invalid = true; 2167b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 2168b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 216960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2170b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor Exceptions.push_back(T); 2171b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 217260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2173b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor if (Invalid) 2174b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor break; 217560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl 2176b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor continue; 2177b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor } 2178b99268b3083c882103bd1bd08bdcc9a76a2b4795Douglas Gregor 21790ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor QualType T 21800ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor = SemaRef.SubstType(Proto->getExceptionType(I), TemplateArgs, 21810ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor New->getLocation(), New->getDeclName()); 21820ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor if (T.isNull() || 21830ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor SemaRef.CheckSpecifiedExceptionType(T, New->getLocation())) 21840ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor continue; 21850ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 21860ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor Exceptions.push_back(T); 21870ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor } 218856fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl Expr *NoexceptExpr = 0; 218956fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl if (Expr *OldNoexceptExpr = Proto->getNoexceptExpr()) { 219056fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl ExprResult E = SemaRef.SubstExpr(OldNoexceptExpr, TemplateArgs); 219156fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl if (E.isUsable()) 219256fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl NoexceptExpr = E.take(); 219356fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl } 21940ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 21950ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor // Rebuild the function type 21960ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 2197e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI = Proto->getExtProtoInfo(); 219860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.ExceptionSpecType = Proto->getExceptionSpecType(); 2199e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.NumExceptions = Exceptions.size(); 2200e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Exceptions = Exceptions.data(); 220156fb926c93786739cfd0867e7ada31ace3bda946Sebastian Redl EPI.NoexceptExpr = NoexceptExpr; 2202e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Proto->getExtInfo(); 2203e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 22040ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor const FunctionProtoType *NewProto 22050ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor = New->getType()->getAs<FunctionProtoType>(); 22060ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor assert(NewProto && "Template instantiation without function prototype?"); 22070ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor New->setType(SemaRef.Context.getFunctionType(NewProto->getResultType(), 22080ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor NewProto->arg_type_begin(), 22090ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor NewProto->getNumArgs(), 2210e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI)); 22110ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor } 22120ae7b3f1d5403265f693ed75384603ca8fbba74dDouglas Gregor 22131d8d1ccd36888f1120b3a1df9e76f35dc2edb81dJohn McCall SemaRef.InstantiateAttrs(TemplateArgs, Tmpl, New); 22147cf84d66965a7706004d8590b5af5fe54b85f525Douglas Gregor 2215e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return false; 2216e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor} 2217e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor 22185545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// \brief Initializes common fields of an instantiated method 22195545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// declaration (New) from the corresponding fields of its template 22205545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// (Tmpl). 22215545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// 22225545e166a956a20d7a6b58408e251a1119025485Douglas Gregor/// \returns true if there was an error 22231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpbool 22241eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateDeclInstantiator::InitMethodInstantiation(CXXMethodDecl *New, 22255545e166a956a20d7a6b58408e251a1119025485Douglas Gregor CXXMethodDecl *Tmpl) { 2226e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (InitFunctionInstantiation(New, Tmpl)) 2227e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return true; 22281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22295545e166a956a20d7a6b58408e251a1119025485Douglas Gregor New->setAccess(Tmpl->getAccess()); 2230e7184df728bb339633d88c774b5097dd9318cc8aFariborz Jahanian if (Tmpl->isVirtualAsWritten()) 223185606ebf3dd1b5dd81a59ef25b5ad47627664774Douglas Gregor New->setVirtualAsWritten(true); 22325545e166a956a20d7a6b58408e251a1119025485Douglas Gregor 22335545e166a956a20d7a6b58408e251a1119025485Douglas Gregor // FIXME: attributes 22345545e166a956a20d7a6b58408e251a1119025485Douglas Gregor // FIXME: New needs a pointer to Tmpl 22355545e166a956a20d7a6b58408e251a1119025485Douglas Gregor return false; 22365545e166a956a20d7a6b58408e251a1119025485Douglas Gregor} 2237a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor 2238a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// \brief Instantiate the definition of the given function from its 2239a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// template. 2240a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// 2241b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// \param PointOfInstantiation the point at which the instantiation was 2242b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// required. Note that this is not precisely a "point of instantiation" 2243b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// for the function, but it's close. 2244b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// 2245a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// \param Function the already-instantiated declaration of a 2246b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// function template specialization or member function of a class template 2247b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// specialization. 2248b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// 2249b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// \param Recursive if true, recursively instantiates any functions that 2250b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor/// are required by this instantiation. 2251e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// 2252e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// \param DefinitionRequired if true, then we are performing an explicit 2253e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// instantiation where the body of the function is required. Complain if 2254e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// there is no such body. 2255f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregorvoid Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation, 2256b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor FunctionDecl *Function, 2257e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool Recursive, 2258e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool DefinitionRequired) { 225906a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (Function->isInvalidDecl() || Function->hasBody()) 226054dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor return; 226154dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor 2262251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Never instantiate an explicit specialization. 2263251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor if (Function->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) 2264251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return; 22656cfacfe54c75baa4d67f1fbdf4f80644b662818eDouglas Gregor 22661eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor // Find the function body that we'll be substituting. 22673b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor const FunctionDecl *PatternDecl = Function->getTemplateInstantiationPattern(); 22681eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor Stmt *Pattern = 0; 22691eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor if (PatternDecl) 22706fb0aee4f9dc261bbec72e1283ad8dc0557a6d96Argyrios Kyrtzidis Pattern = PatternDecl->getBody(PatternDecl); 22711eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor 22728387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Postpone late parsed template instantiations. 22738387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (PatternDecl->isLateTemplateParsed() && !LateTemplateParser) { 22748387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet PendingInstantiations.push_back( 22758387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet std::make_pair(Function, PointOfInstantiation)); 22768387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return; 22778387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 22788387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 22798387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Call the LateTemplateParser callback if there a need to late parse 22808387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // a templated function definition. 22818387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (!Pattern && PatternDecl && PatternDecl->isLateTemplateParsed() && 22828387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateTemplateParser) { 22834a47e8d35dc1778ef7e428d9edd7676be67e725fFrancois Pichet LateTemplateParser(OpaqueParser, PatternDecl); 22848387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Pattern = PatternDecl->getBody(PatternDecl); 22858387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 22868387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 2287e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (!Pattern) { 2288e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (DefinitionRequired) { 2289e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (Function->getPrimaryTemplate()) 2290e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PointOfInstantiation, 2291e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::err_explicit_instantiation_undefined_func_template) 2292e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor << Function->getPrimaryTemplate(); 2293e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor else 2294e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PointOfInstantiation, 2295e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::err_explicit_instantiation_undefined_member) 2296e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor << 1 << Function->getDeclName() << Function->getDeclContext(); 2297e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor 2298e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (PatternDecl) 2299e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PatternDecl->getLocation(), 2300e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::note_explicit_instantiation_here); 2301cfe833be882f600206f1587f157b025b368497d7Douglas Gregor Function->setInvalidDecl(); 230258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth } else if (Function->getTemplateSpecializationKind() 230358e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth == TSK_ExplicitInstantiationDefinition) { 230462c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.push_back( 230558e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth std::make_pair(Function, PointOfInstantiation)); 2306e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor } 230758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth 23081eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor return; 2309e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor } 23101eee0e753fb390b04848846e837714ec774b7bfdDouglas Gregor 2311d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // C++0x [temp.explicit]p9: 2312d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // Except for inline functions, other explicit instantiation declarations 23131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // have the effect of suppressing the implicit instantiation of the entity 2314d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // to which they refer. 23151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (Function->getTemplateSpecializationKind() 2316d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor == TSK_ExplicitInstantiationDeclaration && 23177ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregor !PatternDecl->isInlined()) 2318d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor return; 23191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2320f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor InstantiatingTemplate Inst(*this, PointOfInstantiation, Function); 2321f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor if (Inst) 2322e7089b0c6ffe8a8854150b60df00fb544099f77dDouglas Gregor return; 2323e7089b0c6ffe8a8854150b60df00fb544099f77dDouglas Gregor 2324b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // If we're performing recursive template instantiation, create our own 2325b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // queue of pending implicit instantiations that we will instantiate later, 2326b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // while we're still within our own instantiation context. 23272a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky llvm::SmallVector<VTableUse, 16> SavedVTableUses; 232862c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; 23292a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky if (Recursive) { 23302a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky VTableUses.swap(SavedVTableUses); 233162c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 23322a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky } 23331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23349679cafc6368cceed1a5e69d3038d0316401b352Douglas Gregor EnterExpressionEvaluationContext EvalContext(*this, 2335f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::PotentiallyEvaluated); 2336d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ActOnStartOfFunctionDef(0, Function); 2337e2c31ff0bc622e6fd7d47d7e08b53840f3be6c89Douglas Gregor 233854dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor // Introduce a new scope where local variable instantiations will be 233960406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // recorded, unless we're actually a member function within a local 234060406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // class, in which case we need to merge our results with the parent 234160406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // scope (of the enclosing function). 234260406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor bool MergeWithParentScope = false; 234360406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor if (CXXRecordDecl *Rec = dyn_cast<CXXRecordDecl>(Function->getDeclContext())) 234460406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor MergeWithParentScope = Rec->isLocalClass(); 234560406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor 234660406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor LocalInstantiationScope Scope(*this, MergeWithParentScope); 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 234854dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor // Introduce the instantiated function parameters into the local 23498a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne // instantiation scope, and set the parameter names to those used 23508a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne // in the template. 235112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor unsigned FParamIdx = 0; 23528a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne for (unsigned I = 0, N = PatternDecl->getNumParams(); I != N; ++I) { 23538a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne const ParmVarDecl *PatternParam = PatternDecl->getParamDecl(I); 235412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor if (!PatternParam->isParameterPack()) { 235512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Simple case: not a parameter pack. 235612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor assert(FParamIdx < Function->getNumParams()); 235712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *FunctionParam = Function->getParamDecl(I); 235812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor FunctionParam->setDeclName(PatternParam->getDeclName()); 235912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Scope.InstantiatedLocal(PatternParam, FunctionParam); 236012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ++FParamIdx; 236112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor continue; 236212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 236312c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor 236412c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor // Expand the parameter pack. 236512c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Scope.MakeInstantiatedLocalArgPack(PatternParam); 236612c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor for (unsigned NumFParams = Function->getNumParams(); 236712c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor FParamIdx < NumFParams; 236812c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ++FParamIdx) { 236912c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx); 237012c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor FunctionParam->setDeclName(PatternParam->getDeclName()); 237112c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor Scope.InstantiatedLocalPackArg(PatternParam, FunctionParam); 237212c9c00024a01819e3a70ef6d951d32efaeb9312Douglas Gregor } 23738a6c0f1a48b8167ca1457c9f05288fa637033dc9Peter Collingbourne } 237454dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor 2375b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor // Enter the scope of this instantiation. We don't use 2376b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor // PushDeclContext because we don't have a scope. 2377eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Sema::ContextRAII savedContext(*this, Function); 2378b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump MultiLevelTemplateArgumentList TemplateArgs = 2380e7089b0c6ffe8a8854150b60df00fb544099f77dDouglas Gregor getTemplateInstantiationArgs(Function, 0, false, PatternDecl); 2381090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 2382090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // If this is a constructor, instantiate the member initializers. 23831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const CXXConstructorDecl *Ctor = 2384090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson dyn_cast<CXXConstructorDecl>(PatternDecl)) { 2385090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson InstantiateMemInitializers(cast<CXXConstructorDecl>(Function), Ctor, 2386090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson TemplateArgs); 23871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 23881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 238954dabfca850ca9e60e9ffb60003529f868d4d127Douglas Gregor // Instantiate the function body. 239060d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult Body = SubstStmt(Pattern, TemplateArgs); 2391e2c31ff0bc622e6fd7d47d7e08b53840f3be6c89Douglas Gregor 239252604ab71a74b8ec481255dfeea7dc9dba63b1a5Douglas Gregor if (Body.isInvalid()) 239352604ab71a74b8ec481255dfeea7dc9dba63b1a5Douglas Gregor Function->setInvalidDecl(); 239452604ab71a74b8ec481255dfeea7dc9dba63b1a5Douglas Gregor 23959ae2f076ca5ab1feb3ba95629099ec2319833701John McCall ActOnFinishFunctionBody(Function, Body.get(), 2396e2c31ff0bc622e6fd7d47d7e08b53840f3be6c89Douglas Gregor /*IsInstantiation=*/true); 2397b9f1b8d877541e76390cd3807c2dcff2f950360aDouglas Gregor 23980c01d18094100db92d38daa923c95661512db203John McCall PerformDependentDiagnostics(PatternDecl, TemplateArgs); 23990c01d18094100db92d38daa923c95661512db203John McCall 2400eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall savedContext.pop(); 2401aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor 2402aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor DeclGroupRef DG(Function); 2403aba43bb13b3aa3e81990989375fba3a902bfe1c2Douglas Gregor Consumer.HandleTopLevelDecl(DG); 24041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 240560406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // This class may have local implicit instantiations that need to be 240660406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor // instantiation within this scope. 240762c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PerformPendingInstantiations(/*LocalOnly=*/true); 240860406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor Scope.Exit(); 240960406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor 2410b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor if (Recursive) { 24112a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky // Define any pending vtables. 24122a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky DefineUsedVTables(); 24132a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky 2414b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // Instantiate any pending implicit instantiations found during the 24151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // instantiation of this template. 241662c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PerformPendingInstantiations(); 24171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24182a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky // Restore the set of pending vtables. 24192a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky VTableUses.swap(SavedVTableUses); 24202a5f99eb4e2af771faacfceb9f78e230129c5e5aNick Lewycky 2421b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor // Restore the set of pending implicit instantiations. 242262c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 2423b33fe2ff12676bff9db595fdf77e29014d7ba397Douglas Gregor } 2424a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor} 2425a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor 2426a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// \brief Instantiate the definition of the given variable from its 2427a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// template. 2428a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor/// 24297caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// \param PointOfInstantiation the point at which the instantiation was 24307caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// required. Note that this is not precisely a "point of instantiation" 24317caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// for the function, but it's close. 24327caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// 24337caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// \param Var the already-instantiated declaration of a static member 24347caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// variable of a class template specialization. 24357caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// 24367caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// \param Recursive if true, recursively instantiates any functions that 24377caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor/// are required by this instantiation. 2438e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// 2439e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// \param DefinitionRequired if true, then we are performing an explicit 2440e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// instantiation where an out-of-line definition of the member variable 2441e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor/// is required. Complain if there is no such definition. 24427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregorvoid Sema::InstantiateStaticDataMemberDefinition( 24437caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor SourceLocation PointOfInstantiation, 24447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor VarDecl *Var, 2445e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool Recursive, 2446e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor bool DefinitionRequired) { 24477caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Var->isInvalidDecl()) 24487caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return; 24491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Find the out-of-line definition of this static data member. 24517caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor VarDecl *Def = Var->getInstantiatedFromStaticDataMember(); 24527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Def && "This data member was not instantiated from a template?"); 24530d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor assert(Def->isStaticDataMember() && "Not a static data member?"); 24540d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor Def = Def->getOutOfLineDefinition(); 24551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24560d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor if (!Def) { 24577caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // We did not find an out-of-line definition of this static data member, 24587caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // so we won't perform any instantiation. Rather, we rely on the user to 24591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // instantiate this definition (or provide a specialization for it) in 24601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // another translation unit. 2461e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor if (DefinitionRequired) { 24620d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor Def = Var->getInstantiatedFromStaticDataMember(); 2463e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(PointOfInstantiation, 2464e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor diag::err_explicit_instantiation_undefined_member) 2465e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor << 2 << Var->getDeclName() << Var->getDeclContext(); 2466e2d3a3de71b2fa35614cb732a6da95a41fa38ad9Douglas Gregor Diag(Def->getLocation(), diag::note_explicit_instantiation_here); 246758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth } else if (Var->getTemplateSpecializationKind() 246858e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth == TSK_ExplicitInstantiationDefinition) { 246962c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.push_back( 247058e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth std::make_pair(Var, PointOfInstantiation)); 247158e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth } 247258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth 24737caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return; 24747caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 24757caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2476251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Never instantiate an explicit specialization. 24771028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor if (Var->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) 2478251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return; 2479251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 2480251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // C++0x [temp.explicit]p9: 2481251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // Except for inline functions, other explicit instantiation declarations 2482251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // have the effect of suppressing the implicit instantiation of the entity 2483251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor // to which they refer. 24841028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor if (Var->getTemplateSpecializationKind() 2485251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor == TSK_ExplicitInstantiationDeclaration) 2486251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return; 24871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24887caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor InstantiatingTemplate Inst(*this, PointOfInstantiation, Var); 24897caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Inst) 24907caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return; 24911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24927caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // If we're performing recursive template instantiation, create our own 24937caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // queue of pending implicit instantiations that we will instantiate later, 24947caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // while we're still within our own instantiation context. 249562c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; 24967caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Recursive) 249762c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 24981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24997caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Enter the scope of this instantiation. We don't use 25007caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // PushDeclContext because we don't have a scope. 2501f5ba7e089daadcd60b0f6e31d932be8bb6045281John McCall ContextRAII previousContext(*this, Var->getDeclContext()); 25021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25031028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor VarDecl *OldVar = Var; 2504ce3ff2bd3a3386dbc209d3cba4b8769173b274c1John McCall Var = cast_or_null<VarDecl>(SubstDecl(Def, Var->getDeclContext(), 25056bb4dcb412d53d05a80017df81d41e447e2aa3eaNico Weber getTemplateInstantiationArgs(Var))); 2506f5ba7e089daadcd60b0f6e31d932be8bb6045281John McCall 2507f5ba7e089daadcd60b0f6e31d932be8bb6045281John McCall previousContext.pop(); 25087caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 25097caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Var) { 2510583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor MemberSpecializationInfo *MSInfo = OldVar->getMemberSpecializationInfo(); 2511583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 2512583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor Var->setTemplateSpecializationKind(MSInfo->getTemplateSpecializationKind(), 2513583f33b8a9227bace1a77a15404b4c64dc619d69Douglas Gregor MSInfo->getPointOfInstantiation()); 25147caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor DeclGroupRef DG(Var); 25157caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor Consumer.HandleTopLevelDecl(DG); 25167caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 25171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25187caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Recursive) { 25197caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Instantiate any pending implicit instantiations found during the 25201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // instantiation of this template. 252162c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PerformPendingInstantiations(); 25221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25237caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Restore the set of pending implicit instantiations. 252462c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.swap(SavedPendingInstantiations); 25251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2526a58861f6490780baec50689e06ca65f7438b85dcDouglas Gregor} 2527815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2528090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlssonvoid 2529090253155017b7eec031bbd7bf07824a448e1d7aAnders CarlssonSema::InstantiateMemInitializers(CXXConstructorDecl *New, 2530090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson const CXXConstructorDecl *Tmpl, 2531090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson const MultiLevelTemplateArgumentList &TemplateArgs) { 25321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2533090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson llvm::SmallVector<MemInitTy*, 4> NewInits; 25349db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor bool AnyErrors = false; 25359db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor 2536090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // Instantiate all the initializers. 2537090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson for (CXXConstructorDecl::init_const_iterator Inits = Tmpl->init_begin(), 253872f6d678c8de9f3a770e8ae5fc4979abf3940668Douglas Gregor InitsEnd = Tmpl->init_end(); 253972f6d678c8de9f3a770e8ae5fc4979abf3940668Douglas Gregor Inits != InitsEnd; ++Inits) { 2540cbb67480094b3bcb5b715acd827cbad55e2a204cSean Hunt CXXCtorInitializer *Init = *Inits; 2541090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 2542030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth // Only instantiate written initializers, let Sema re-construct implicit 2543030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth // ones. 2544030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth if (!Init->isWritten()) 2545030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth continue; 2546030ef472f31709e175895853fcb43d61d09022c7Chandler Carruth 25476b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor SourceLocation LParenLoc, RParenLoc; 2548ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall ASTOwningVector<Expr*> NewArgs(*this); 25491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25503fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor SourceLocation EllipsisLoc; 25513fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 25523fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (Init->isPackExpansion()) { 25533fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // This is a pack expansion. We should expand it now. 25543fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TypeLoc BaseTL = Init->getBaseClassInfo()->getTypeLoc(); 25553fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; 25563fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor collectUnexpandedParameterPacks(BaseTL, Unexpanded); 25573fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor bool ShouldExpand = false; 2558d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor bool RetainExpansion = false; 2559cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor llvm::Optional<unsigned> NumExpansions; 25603fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (CheckParameterPacksForExpansion(Init->getEllipsisLoc(), 25613fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor BaseTL.getSourceRange(), 25623fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Unexpanded.data(), 25633fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Unexpanded.size(), 25643fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TemplateArgs, ShouldExpand, 2565d3731198193eee92796ddeb493973b7a598b003eDouglas Gregor RetainExpansion, 25663fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NumExpansions)) { 25673fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 25683fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->setInvalidDecl(); 25693fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor continue; 25703fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 25713fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor assert(ShouldExpand && "Partial instantiation of base initializer?"); 25723fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 25733fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Loop over all of the arguments in the argument pack(s), 2574cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor for (unsigned I = 0; I != *NumExpansions; ++I) { 25753fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(*this, I); 25763fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 25773fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Instantiate the initializer. 25783fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (InstantiateInitializer(*this, Init->getInit(), TemplateArgs, 25793fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor LParenLoc, NewArgs, RParenLoc)) { 25803fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 25813fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor break; 25823fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 25833fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 25843fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Instantiate the base type. 25853fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TypeSourceInfo *BaseTInfo = SubstType(Init->getBaseClassInfo(), 25863fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor TemplateArgs, 25873fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Init->getSourceLocation(), 25883fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->getDeclName()); 25893fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (!BaseTInfo) { 25903fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 25913fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor break; 25923fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 25933fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 25943fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor // Build the initializer. 25953fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor MemInitResult NewInit = BuildBaseInitializer(BaseTInfo->getType(), 25963fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor BaseTInfo, 25973fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor (Expr **)NewArgs.data(), 25983fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NewArgs.size(), 25993fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Init->getLParenLoc(), 26003fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor Init->getRParenLoc(), 26013fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->getParent(), 26023fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor SourceLocation()); 26033fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor if (NewInit.isInvalid()) { 26043fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor AnyErrors = true; 26053fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor break; 26063fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 26073fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26083fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NewInits.push_back(NewInit.get()); 26093fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor NewArgs.clear(); 26103fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 26113fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26123fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor continue; 26133fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor } 26143fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor 26156b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor // Instantiate the initializer. 26166b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor if (InstantiateInitializer(*this, Init->getInit(), TemplateArgs, 2617a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor LParenLoc, NewArgs, RParenLoc)) { 26186b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor AnyErrors = true; 26196b98b2e5f33ce2dcdb7fa385f7e21672d49f1a69Douglas Gregor continue; 2620090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 26219db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor 2622090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson MemInitResult NewInit; 2623090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson if (Init->isBaseInitializer()) { 2624a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *BaseTInfo = SubstType(Init->getBaseClassInfo(), 2625802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor TemplateArgs, 2626802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor Init->getSourceLocation(), 2627802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor New->getDeclName()); 2628a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!BaseTInfo) { 26299db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor AnyErrors = true; 2630802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor New->setInvalidDecl(); 2631802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor continue; 2632802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor } 2633802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor 2634a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall NewInit = BuildBaseInitializer(BaseTInfo->getType(), BaseTInfo, 26351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (Expr **)NewArgs.data(), 2636090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewArgs.size(), 2637802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor Init->getLParenLoc(), 2638090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson Init->getRParenLoc(), 26393fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor New->getParent(), 26403fb9e4b89f72823f162096086f0f964e6dcf66d6Douglas Gregor EllipsisLoc); 2641090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } else if (Init->isMemberInitializer()) { 2642b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor FieldDecl *Member = cast_or_null<FieldDecl>(FindInstantiatedDecl( 264300eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getMemberLocation(), 264400eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getMember(), 264500eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet TemplateArgs)); 2646b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!Member) { 2647b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor AnyErrors = true; 2648b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor New->setInvalidDecl(); 2649b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor continue; 2650b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor } 26511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NewInit = BuildMemberInitializer(Member, (Expr **)NewArgs.data(), 2653090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewArgs.size(), 2654090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson Init->getSourceLocation(), 2655802ab45fea51beff12f386329d4928811a479c6eDouglas Gregor Init->getLParenLoc(), 2656090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson Init->getRParenLoc()); 265700eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet } else if (Init->isIndirectMemberInitializer()) { 265800eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet IndirectFieldDecl *IndirectMember = 2659b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor cast_or_null<IndirectFieldDecl>(FindInstantiatedDecl( 266000eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getMemberLocation(), 266100eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getIndirectMember(), TemplateArgs)); 266200eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet 2663b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor if (!IndirectMember) { 2664b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor AnyErrors = true; 2665b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor New->setInvalidDecl(); 2666b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor continue; 2667b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor } 2668b710722d2348cd0945d2b4f02062c7f685146eb0Douglas Gregor 266900eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet NewInit = BuildMemberInitializer(IndirectMember, (Expr **)NewArgs.data(), 267000eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet NewArgs.size(), 267100eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getSourceLocation(), 267200eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getLParenLoc(), 267300eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet Init->getRParenLoc()); 2674090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 2675090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 26769db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor if (NewInit.isInvalid()) { 26779db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor AnyErrors = true; 2678090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson New->setInvalidDecl(); 26799db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor } else { 2680090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // FIXME: It would be nice if ASTOwningVector had a release function. 2681090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewArgs.take(); 26821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2683090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson NewInits.push_back((MemInitTy *)NewInit.get()); 2684090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 2685090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson } 26861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2687090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson // Assign all the initializers to the new constructor. 2688d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ActOnMemInitializers(New, 2689090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson /*FIXME: ColonLoc */ 2690090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson SourceLocation(), 26919db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor NewInits.data(), NewInits.size(), 26929db7dbb918ca49f4ee6c181e4917e7b6ec547353Douglas Gregor AnyErrors); 2693090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson} 2694090253155017b7eec031bbd7bf07824a448e1d7aAnders Carlsson 269552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall// TODO: this could be templated if the various decl types used the 269652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall// same method name. 269752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(ClassTemplateDecl *Pattern, 269852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall ClassTemplateDecl *Instance) { 269952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 270052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 270152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 270252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 270352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 270452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberTemplate(); 270552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 270652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 270752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 270852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 270952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 27100d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregorstatic bool isInstantiationOf(FunctionTemplateDecl *Pattern, 27110d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor FunctionTemplateDecl *Instance) { 27120d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor Pattern = Pattern->getCanonicalDecl(); 27130d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 27140d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor do { 27150d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor Instance = Instance->getCanonicalDecl(); 27160d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor if (Pattern == Instance) return true; 27170d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor Instance = Instance->getInstantiatedFromMemberTemplate(); 27180d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor } while (Instance); 27190d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 27200d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor return false; 27210d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor} 27220d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 2723ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregorstatic bool 2724ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas GregorisInstantiationOf(ClassTemplatePartialSpecializationDecl *Pattern, 2725ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor ClassTemplatePartialSpecializationDecl *Instance) { 2726ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Pattern 2727ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = cast<ClassTemplatePartialSpecializationDecl>(Pattern->getCanonicalDecl()); 2728ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor do { 2729ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Instance = cast<ClassTemplatePartialSpecializationDecl>( 2730ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Instance->getCanonicalDecl()); 2731ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (Pattern == Instance) 2732ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return true; 2733ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor Instance = Instance->getInstantiatedFromMember(); 2734ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor } while (Instance); 2735ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2736ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return false; 2737ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor} 2738ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 273952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(CXXRecordDecl *Pattern, 274052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall CXXRecordDecl *Instance) { 274152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 274252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 274352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 274452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 274552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 274652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberClass(); 274752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 274852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 274952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 275052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 275152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 275252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(FunctionDecl *Pattern, 275352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall FunctionDecl *Instance) { 275452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 275552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 275652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 275752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 275852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 275952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberFunction(); 276052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 276152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 276252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 276352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 276452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 276552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOf(EnumDecl *Pattern, 276652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall EnumDecl *Instance) { 276752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 276852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 276952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 277052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 277152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 277252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromMemberEnum(); 277352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 277452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 277552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 277652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 277752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 2778ed97649e9574b9d854fa4d6109c9333ae0993554John McCallstatic bool isInstantiationOf(UsingShadowDecl *Pattern, 2779ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Instance, 2780ed97649e9574b9d854fa4d6109c9333ae0993554John McCall ASTContext &C) { 2781ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingShadowDecl(Instance) == Pattern; 2782ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 2783ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2784ed97649e9574b9d854fa4d6109c9333ae0993554John McCallstatic bool isInstantiationOf(UsingDecl *Pattern, 2785ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingDecl *Instance, 2786ed97649e9574b9d854fa4d6109c9333ae0993554John McCall ASTContext &C) { 2787ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingDecl(Instance) == Pattern; 2788ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 2789ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 27907ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallstatic bool isInstantiationOf(UnresolvedUsingValueDecl *Pattern, 27917ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall UsingDecl *Instance, 27927ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall ASTContext &C) { 2793ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingDecl(Instance) == Pattern; 27947ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall} 27957ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 27967ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallstatic bool isInstantiationOf(UnresolvedUsingTypenameDecl *Pattern, 27970d8df780aef1acda5962347a32591efc629b6748Anders Carlsson UsingDecl *Instance, 27980d8df780aef1acda5962347a32591efc629b6748Anders Carlsson ASTContext &C) { 2799ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return C.getInstantiatedFromUsingDecl(Instance) == Pattern; 28000d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 28010d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 280252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCallstatic bool isInstantiationOfStaticDataMember(VarDecl *Pattern, 280352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall VarDecl *Instance) { 280452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall assert(Instance->isStaticDataMember()); 280552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 280652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Pattern = Pattern->getCanonicalDecl(); 280752a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 280852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall do { 280952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getCanonicalDecl(); 281052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Pattern == Instance) return true; 281152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall Instance = Instance->getInstantiatedFromStaticDataMember(); 281252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } while (Instance); 281352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 281452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return false; 281552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall} 281652a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 2817ed97649e9574b9d854fa4d6109c9333ae0993554John McCall// Other is the prospective instantiation 2818ed97649e9574b9d854fa4d6109c9333ae0993554John McCall// D is the prospective pattern 2819815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregorstatic bool isInstantiationOf(ASTContext &Ctx, NamedDecl *D, Decl *Other) { 28200d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (D->getKind() != Other->getKind()) { 28217ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall if (UnresolvedUsingTypenameDecl *UUD 28227ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall = dyn_cast<UnresolvedUsingTypenameDecl>(D)) { 28237ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { 28247ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall return isInstantiationOf(UUD, UD, Ctx); 28257ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall } 28267ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall } 28277ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall 28287ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall if (UnresolvedUsingValueDecl *UUD 28297ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall = dyn_cast<UnresolvedUsingValueDecl>(D)) { 28300d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { 28310d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return isInstantiationOf(UUD, UD, Ctx); 28320d8df780aef1acda5962347a32591efc629b6748Anders Carlsson } 28330d8df780aef1acda5962347a32591efc629b6748Anders Carlsson } 2834815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 28350d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return false; 28360d8df780aef1acda5962347a32591efc629b6748Anders Carlsson } 28371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 283852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Other)) 283952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<CXXRecordDecl>(D), Record); 28401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 284152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Other)) 284252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<FunctionDecl>(D), Function); 2843815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 284452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (EnumDecl *Enum = dyn_cast<EnumDecl>(Other)) 284552a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<EnumDecl>(D), Enum); 2846815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 28477caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(Other)) 284852a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (Var->isStaticDataMember()) 284952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOfStaticDataMember(cast<VarDecl>(D), Var); 285052a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 285152a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall if (ClassTemplateDecl *Temp = dyn_cast<ClassTemplateDecl>(Other)) 285252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return isInstantiationOf(cast<ClassTemplateDecl>(D), Temp); 2853a5bf7f13d7772b164750997f95ab18487bbc4114Douglas Gregor 28540d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor if (FunctionTemplateDecl *Temp = dyn_cast<FunctionTemplateDecl>(Other)) 28550d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor return isInstantiationOf(cast<FunctionTemplateDecl>(D), Temp); 28560d696533420fca4cf32694621e3edf582ad4d06eDouglas Gregor 2857ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor if (ClassTemplatePartialSpecializationDecl *PartialSpec 2858ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor = dyn_cast<ClassTemplatePartialSpecializationDecl>(Other)) 2859ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor return isInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(D), 2860ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor PartialSpec); 2861ed9c0f90b7e0811c209b95e39fe07c211c531285Douglas Gregor 2862d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (FieldDecl *Field = dyn_cast<FieldDecl>(Other)) { 2863d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (!Field->getDeclName()) { 2864d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson // This is an unnamed field. 28651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Ctx.getInstantiatedFromUnnamedFieldDecl(Field) == 2866d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson cast<FieldDecl>(D); 2867d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson } 2868d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson } 28691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2870ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (UsingDecl *Using = dyn_cast<UsingDecl>(Other)) 2871ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return isInstantiationOf(cast<UsingDecl>(D), Using, Ctx); 2872ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2873ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (UsingShadowDecl *Shadow = dyn_cast<UsingShadowDecl>(Other)) 2874ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return isInstantiationOf(cast<UsingShadowDecl>(D), Shadow, Ctx); 2875ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 2876815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return D->getDeclName() && isa<NamedDecl>(Other) && 2877815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor D->getDeclName() == cast<NamedDecl>(Other)->getDeclName(); 2878815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor} 2879815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2880815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregortemplate<typename ForwardIterator> 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic NamedDecl *findInstantiationOf(ASTContext &Ctx, 2882815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor NamedDecl *D, 2883815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor ForwardIterator first, 2884815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor ForwardIterator last) { 2885815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor for (; first != last; ++first) 2886815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor if (isInstantiationOf(Ctx, D, *first)) 2887815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return cast<NamedDecl>(*first); 2888815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2889815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return 0; 2890815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor} 2891815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 289202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// \brief Finds the instantiation of the given declaration context 289302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// within the current instantiation. 289402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// 289502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall/// \returns NULL if there was an error 28967c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas GregorDeclContext *Sema::FindInstantiatedContext(SourceLocation Loc, DeclContext* DC, 2897e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs) { 289802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall if (NamedDecl *D = dyn_cast<NamedDecl>(DC)) { 28997c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor Decl* ID = FindInstantiatedDecl(Loc, D, TemplateArgs); 290002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall return cast_or_null<DeclContext>(ID); 290102cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall } else return DC; 290202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall} 290302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 2904ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// \brief Find the instantiation of the given declaration within the 2905ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// current instantiation. 2906815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 2907815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// This routine is intended to be used when \p D is a declaration 2908815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// referenced from within a template, that needs to mapped into the 2909815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// corresponding declaration within an instantiation. For example, 2910815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// given: 2911815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 2912815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// \code 2913815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// template<typename T> 2914815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// struct X { 2915815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// enum Kind { 2916815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// KnownValue = sizeof(T) 2917815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// }; 2918815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 2919815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// bool getKind() const { return KnownValue; } 2920815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// }; 2921815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 2922815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// template struct X<int>; 2923815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// \endcode 2924815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// 2925815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// In the instantiation of X<int>::getKind(), we need to map the 2926815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// EnumConstantDecl for KnownValue (which refers to 2927815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor/// X<T>::<Kind>::KnownValue) to its instantiation 2928ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// (X<int>::<Kind>::KnownValue). InstantiateCurrentDeclRef() performs 2929ed961e7fffc268eeace169869f5a059bcbd5fcbdDouglas Gregor/// this mapping from within the instantiation of X<int>. 29307c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas GregorNamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D, 2931e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor const MultiLevelTemplateArgumentList &TemplateArgs) { 2932815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor DeclContext *ParentDC = D->getDeclContext(); 2933550d9b28fd586db541eb6dd36f3c10d114e483d8Douglas Gregor if (isa<ParmVarDecl>(D) || isa<NonTypeTemplateParmDecl>(D) || 29346d3e627dacdb2f749195635ab587fd067ef813e1Douglas Gregor isa<TemplateTypeParmDecl>(D) || isa<TemplateTemplateParmDecl>(D) || 2935766724566289e6951a90b6483f0d3e22fe4b9b52John McCall (ParentDC->isFunctionOrMethod() && ParentDC->isDependentContext())) { 29362bba76b0ec4c2f2134eebb1a2bbfe102f36c2f6eDouglas Gregor // D is a local of some kind. Look into the map of local 29372bba76b0ec4c2f2134eebb1a2bbfe102f36c2f6eDouglas Gregor // declarations to their instantiations. 2938d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack; 2939d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner llvm::PointerUnion<Decl *, DeclArgumentPack *> *Found 2940d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner = CurrentInstantiationScope->findInstantiationOf(D); 2941d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner 294257ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner if (Found) { 294357ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner if (Decl *FD = Found->dyn_cast<Decl *>()) 294457ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return cast<NamedDecl>(FD); 294557ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 294657ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner unsigned PackIdx = ArgumentPackSubstitutionIndex; 294757ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return cast<NamedDecl>((*Found->get<DeclArgumentPack *>())[PackIdx]); 294857ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner } 294957ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 295057ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner // If we didn't find the decl, then we must have a label decl that hasn't 295157ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner // been found yet. Lazily instantiate it and return it now. 295257ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner assert(isa<LabelDecl>(D)); 295357ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner 295457ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner Decl *Inst = SubstDecl(D, CurContext, TemplateArgs); 295557ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner assert(Inst && "Failed to instantiate label??"); 2956d8e54990ade0dd5566f8e3aa2e62def08753d1e9Chris Lattner 295757ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner CurrentInstantiationScope->InstantiatedLocal(D, Inst); 295857ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner return cast<LabelDecl>(Inst); 29592bba76b0ec4c2f2134eebb1a2bbfe102f36c2f6eDouglas Gregor } 2960815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 2961e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(D)) { 2962e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!Record->isDependentContext()) 2963e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor return D; 2964e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 29658b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // If the RecordDecl is actually the injected-class-name or a 29668b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // "templated" declaration for a class template, class template 29678b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // partial specialization, or a member class of a class template, 29688b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // substitute into the injected-class-name of the class template 29698b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // or partial specialization to find the new DeclContext. 2970e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor QualType T; 2971e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor ClassTemplateDecl *ClassTemplate = Record->getDescribedClassTemplate(); 2972e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 2973e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (ClassTemplate) { 297424bae92f08ae098cc50a602d8cf1273b423e14daDouglas Gregor T = ClassTemplate->getInjectedClassNameSpecialization(); 2975e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor } else if (ClassTemplatePartialSpecializationDecl *PartialSpec 2976e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor = dyn_cast<ClassTemplatePartialSpecializationDecl>(Record)) { 2977e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor ClassTemplate = PartialSpec->getSpecializedTemplate(); 29783cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 29793cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // If we call SubstType with an InjectedClassNameType here we 29803cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // can end up in an infinite loop. 29813cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall T = Context.getTypeDeclType(Record); 29823cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(T) && 29833cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall "type of partial specialization is not an InjectedClassNameType"); 298431f17ecbef57b5679c017c375db330546b7b5145John McCall T = cast<InjectedClassNameType>(T)->getInjectedSpecializationType(); 29853cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 2986e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 2987e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!T.isNull()) { 29888b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // Substitute into the injected-class-name to get the type 29898b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // corresponding to the instantiation we want, which may also be 29908b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // the current instantiation (if we're in a template 29918b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // definition). This substitution should never fail, since we 29928b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // know we can instantiate the injected-class-name or we 29938b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // wouldn't have gotten to the injected-class-name! 29948b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor 29958b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // FIXME: Can we use the CurrentInstantiationScope to avoid this 29968b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // extra instantiation in the common case? 2997b46ae3964ba02535276c71332396e9a7bad2dfa5Douglas Gregor T = SubstType(T, TemplateArgs, Loc, DeclarationName()); 2998e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor assert(!T.isNull() && "Instantiation of injected-class-name cannot fail."); 2999e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 3000e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!T->isDependentType()) { 3001e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor assert(T->isRecordType() && "Instantiation must produce a record type"); 3002e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor return T->getAs<RecordType>()->getDecl(); 3003e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor } 3004e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 30058b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // We are performing "partial" template instantiation to create 30068b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // the member declarations for the members of a class template 30078b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // specialization. Therefore, D is actually referring to something 30088b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // in the current instantiation. Look through the current 30098b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // context, which contains actual instantiations, to find the 30108b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // instantiation of the "current instantiation" that D refers 30118b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // to. 30128b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor bool SawNonDependentContext = false; 30131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (DeclContext *DC = CurContext; !DC->isFileContext(); 301452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall DC = DC->getParent()) { 30151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ClassTemplateSpecializationDecl *Spec 30168b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(DC)) 3017e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (isInstantiationOf(ClassTemplate, 3018e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor Spec->getSpecializedTemplate())) 301952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall return Spec; 30208b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor 30218b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor if (!DC->isDependentContext()) 30228b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor SawNonDependentContext = true; 302352a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } 302452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 30258b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // We're performing "instantiation" of a member of the current 30268b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // instantiation while we are type-checking the 30278b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor // definition. Compute the declaration context and return that. 30288b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor assert(!SawNonDependentContext && 30298b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor "No dependent context while instantiating record"); 30308b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor DeclContext *DC = computeDeclContext(T); 30318b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor assert(DC && 303252a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall "Unable to find declaration for the current instantiation"); 30338b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor return cast<CXXRecordDecl>(DC); 303452a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall } 30358b013bdbf6474ed25d4017635cac851e51163c25Douglas Gregor 3036e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor // Fall through to deal with other dependent record types (e.g., 3037e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor // anonymous unions in class templates). 3038e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor } 303952a575a5ce7b27b6612357cdba5aa4ec1574ad5eJohn McCall 3040e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor if (!ParentDC->isDependentContext()) 3041e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor return D; 3042e95b40961302c2130968ddfc3ba162e138f2118eDouglas Gregor 30437c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor ParentDC = FindInstantiatedContext(Loc, ParentDC, TemplateArgs); 30441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!ParentDC) 304544c73848d5d5bd34c05582dc8398a20bea7cd971Douglas Gregor return 0; 30461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3047815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor if (ParentDC != D->getDeclContext()) { 3048815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // We performed some kind of instantiation in the parent context, 3049815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // so now we need to look into the instantiated parent context to 3050815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // find the instantiation of the declaration D. 30517c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor 30523cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // If our context used to be dependent, we may need to instantiate 30533cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall // it before performing lookup into that context. 3054eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor bool IsBeingInstantiated = false; 30553cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (CXXRecordDecl *Spec = dyn_cast<CXXRecordDecl>(ParentDC)) { 30567c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor if (!Spec->isDependentContext()) { 30577c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor QualType T = Context.getTypeDeclType(Spec); 30583cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const RecordType *Tag = T->getAs<RecordType>(); 30593cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(Tag && "type of non-dependent record is not a RecordType"); 3060eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor if (Tag->isBeingDefined()) 3061eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor IsBeingInstantiated = true; 30623cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (!Tag->isBeingDefined() && 30633cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall RequireCompleteType(Loc, T, diag::err_incomplete_type)) 30643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return 0; 3065a43064c7b721a51ab2c0d0ccdc4f84064aa7ceccDouglas Gregor 3066a43064c7b721a51ab2c0d0ccdc4f84064aa7ceccDouglas Gregor ParentDC = Tag->getDecl(); 30677c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor } 30687c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor } 30697c1e98f1cb37b40e619a0c8aee8b337f037b432bDouglas Gregor 3070815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor NamedDecl *Result = 0; 3071815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor if (D->getDeclName()) { 307217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis DeclContext::lookup_result Found = ParentDC->lookup(D->getDeclName()); 3073815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor Result = findInstantiationOf(Context, D, Found.first, Found.second); 3074815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor } else { 3075815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // Since we don't have a name for the entity we're looking for, 3076815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // our only option is to walk through all of the declarations to 3077815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // find that name. This will occur in a few cases: 3078815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // 3079815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // - anonymous struct/union within a template 3080815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // - unnamed class/struct/union/enum within a template 3081815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // 3082815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor // FIXME: Find a better way to find these instantiations! 30831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = findInstantiationOf(Context, D, 308417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ParentDC->decls_begin(), 308517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ParentDC->decls_end()); 3086815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor } 30871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3088eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor if (!Result) { 3089eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor if (isa<UsingShadowDecl>(D)) { 3090eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // UsingShadowDecls can instantiate to nothing because of using hiding. 3091eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } else if (Diags.hasErrorOccurred()) { 3092eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // We've already complained about something, so most likely this 3093eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // declaration failed to instantiate. There's no point in complaining 3094eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // further, since this is normal in invalid code. 3095eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } else if (IsBeingInstantiated) { 3096eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // The class in which this member exists is currently being 3097eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // instantiated, and we haven't gotten around to instantiating this 3098eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // member yet. This can happen when the code uses forward declarations 3099eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // of member classes, and introduces ordering dependencies via 3100eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // template instantiation. 3101eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor Diag(Loc, diag::err_member_not_yet_instantiated) 3102eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor << D->getDeclName() 3103eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor << Context.getTypeDeclType(cast<CXXRecordDecl>(ParentDC)); 3104eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor Diag(D->getLocation(), diag::note_non_instantiated_member_here); 3105eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } else { 3106eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor // We should have found something, but didn't. 3107eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor llvm_unreachable("Unable to find instantiation of declaration!"); 3108eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } 3109eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor } 3110eff1dbec93999bfc5406eb861efd8add9de23633Douglas Gregor 3111815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor D = Result; 3112815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor } 3113815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor 3114815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor return D; 3115815215daf8f642b53a28212313fca7b9f77e5b9dDouglas Gregor} 3116d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor 31171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Performs template instantiation for all implicit template 3118d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor/// instantiations we have seen until this point. 3119788440378c442562497c09610939cbe6218ab43dDouglas Gregor/// 3120788440378c442562497c09610939cbe6218ab43dDouglas Gregor/// \returns true if anything was instantiated. 3121788440378c442562497c09610939cbe6218ab43dDouglas Gregorbool Sema::PerformPendingInstantiations(bool LocalOnly) { 3122788440378c442562497c09610939cbe6218ab43dDouglas Gregor bool InstantiatedAnything = false; 312360406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor while (!PendingLocalImplicitInstantiations.empty() || 312462c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth (!LocalOnly && !PendingInstantiations.empty())) { 312560406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor PendingImplicitInstantiation Inst; 312660406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor 312760406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor if (PendingLocalImplicitInstantiations.empty()) { 312862c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth Inst = PendingInstantiations.front(); 312962c78d54bee499dd87f768f48b21c9b5ec15e516Chandler Carruth PendingInstantiations.pop_front(); 313060406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor } else { 313160406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor Inst = PendingLocalImplicitInstantiations.front(); 313260406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor PendingLocalImplicitInstantiations.pop_front(); 313360406bede202b66ebdd98cac0c38d20f9698aecaDouglas Gregor } 31341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31357caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Instantiate function definitions 31367caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Inst.first)) { 3137f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall PrettyDeclStackTraceEntry CrashInfo(*this, Function, SourceLocation(), 3138f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall "instantiating function definition"); 313958e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth bool DefinitionRequired = Function->getTemplateSpecializationKind() == 314058e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth TSK_ExplicitInstantiationDefinition; 314158e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth InstantiateFunctionDefinition(/*FIXME:*/Inst.second, Function, true, 314258e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth DefinitionRequired); 3143788440378c442562497c09610939cbe6218ab43dDouglas Gregor InstantiatedAnything = true; 31447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor continue; 31457caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor } 31461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31477caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor // Instantiate static data member definitions. 31487caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor VarDecl *Var = cast<VarDecl>(Inst.first); 31497caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member?"); 3150c17fb7bd9a06b027c792c7dfad7e9fa430277affAnders Carlsson 3151291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // Don't try to instantiate declarations if the most recent redeclaration 3152291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // is invalid. 3153291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth if (Var->getMostRecentDeclaration()->isInvalidDecl()) 3154291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth continue; 3155291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth 3156291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // Check if the most recent declaration has changed the specialization kind 3157291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth // and removed the need for implicit instantiation. 3158291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth switch (Var->getMostRecentDeclaration()->getTemplateSpecializationKind()) { 3159291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_Undeclared: 3160291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth assert(false && "Cannot instantitiate an undeclared specialization."); 3161291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_ExplicitInstantiationDeclaration: 3162291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_ExplicitSpecialization: 316358e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth continue; // No longer need to instantiate this type. 316458e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth case TSK_ExplicitInstantiationDefinition: 316558e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth // We only need an instantiation if the pending instantiation *is* the 316658e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth // explicit instantiation. 316758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth if (Var != Var->getMostRecentDeclaration()) continue; 3168291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth case TSK_ImplicitInstantiation: 3169291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth break; 3170291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth } 3171291b441a095b289c30d9f311fe37a2cf5ed6fd45Chandler Carruth 3172f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall PrettyDeclStackTraceEntry CrashInfo(*this, Var, Var->getLocation(), 3173f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall "instantiating static data member " 3174f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall "definition"); 31751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 317658e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth bool DefinitionRequired = Var->getTemplateSpecializationKind() == 317758e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth TSK_ExplicitInstantiationDefinition; 317858e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth InstantiateStaticDataMemberDefinition(/*FIXME:*/Inst.second, Var, true, 317958e390ef491c8fb11ae17445054ee09527b492d3Chandler Carruth DefinitionRequired); 3180788440378c442562497c09610939cbe6218ab43dDouglas Gregor InstantiatedAnything = true; 3181d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor } 3182788440378c442562497c09610939cbe6218ab43dDouglas Gregor 3183788440378c442562497c09610939cbe6218ab43dDouglas Gregor return InstantiatedAnything; 3184d7f37bf8b9a211455c5037df7b7e88e5a9510119Douglas Gregor} 31850c01d18094100db92d38daa923c95661512db203John McCall 31860c01d18094100db92d38daa923c95661512db203John McCallvoid Sema::PerformDependentDiagnostics(const DeclContext *Pattern, 31870c01d18094100db92d38daa923c95661512db203John McCall const MultiLevelTemplateArgumentList &TemplateArgs) { 31880c01d18094100db92d38daa923c95661512db203John McCall for (DeclContext::ddiag_iterator I = Pattern->ddiag_begin(), 31890c01d18094100db92d38daa923c95661512db203John McCall E = Pattern->ddiag_end(); I != E; ++I) { 31900c01d18094100db92d38daa923c95661512db203John McCall DependentDiagnostic *DD = *I; 31910c01d18094100db92d38daa923c95661512db203John McCall 31920c01d18094100db92d38daa923c95661512db203John McCall switch (DD->getKind()) { 31930c01d18094100db92d38daa923c95661512db203John McCall case DependentDiagnostic::Access: 31940c01d18094100db92d38daa923c95661512db203John McCall HandleDependentAccessCheck(*DD, TemplateArgs); 31950c01d18094100db92d38daa923c95661512db203John McCall break; 31960c01d18094100db92d38daa923c95661512db203John McCall } 31970c01d18094100db92d38daa923c95661512db203John McCall } 31980c01d18094100db92d38daa923c95661512db203John McCall} 3199