Refactor find*Specialization functions using SpecEntryTraits
This patch reimplements the find*Specialization family of member
functions of {Class,Function}TemplateDecl in terms of a common
implementation that uses SpecEntryTraits to obtain the most recent
declaration.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109869 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index 25df086..e69338a 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -126,6 +126,19 @@
return Common ? Common->Latest : this;
}
+template <class EntryType>
+typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType*
+RedeclarableTemplateDecl::findSpecializationImpl(
+ llvm::FoldingSet<EntryType> &Specs,
+ const TemplateArgument *Args, unsigned NumArgs,
+ void *&InsertPos) {
+ typedef SpecEntryTraits<EntryType> SETraits;
+ llvm::FoldingSetNodeID ID;
+ EntryType::Profile(ID,Args,NumArgs, getASTContext());
+ EntryType *Entry = Specs.FindNodeOrInsertPos(ID, InsertPos);
+ return Entry ? SETraits::getMostRecentDeclaration(Entry) : 0;
+}
+
//===----------------------------------------------------------------------===//
// FunctionTemplateDecl Implementation
//===----------------------------------------------------------------------===//
@@ -152,11 +165,7 @@
FunctionDecl *
FunctionTemplateDecl::findSpecialization(const TemplateArgument *Args,
unsigned NumArgs, void *&InsertPos) {
- llvm::FoldingSetNodeID ID;
- FunctionTemplateSpecializationInfo::Profile(ID,Args,NumArgs, getASTContext());
- FunctionTemplateSpecializationInfo *Info
- = getSpecializations().FindNodeOrInsertPos(ID, InsertPos);
- return Info ? Info->Function->getMostRecentDeclaration() : 0;
+ return findSpecializationImpl(getSpecializations(), Args, NumArgs, InsertPos);
}
//===----------------------------------------------------------------------===//
@@ -188,23 +197,15 @@
ClassTemplateSpecializationDecl *
ClassTemplateDecl::findSpecialization(const TemplateArgument *Args,
unsigned NumArgs, void *&InsertPos) {
- llvm::FoldingSetNodeID ID;
- ClassTemplateSpecializationDecl::Profile(ID, Args, NumArgs, getASTContext());
- ClassTemplateSpecializationDecl *D
- = getSpecializations().FindNodeOrInsertPos(ID, InsertPos);
- return D ? D->getMostRecentDeclaration() : 0;
+ return findSpecializationImpl(getSpecializations(), Args, NumArgs, InsertPos);
}
ClassTemplatePartialSpecializationDecl *
ClassTemplateDecl::findPartialSpecialization(const TemplateArgument *Args,
unsigned NumArgs,
void *&InsertPos) {
- llvm::FoldingSetNodeID ID;
- ClassTemplatePartialSpecializationDecl::Profile(ID, Args, NumArgs,
- getASTContext());
- ClassTemplatePartialSpecializationDecl *D
- = getPartialSpecializations().FindNodeOrInsertPos(ID, InsertPos);
- return D ? D->getMostRecentDeclaration() : 0;
+ return findSpecializationImpl(getPartialSpecializations(), Args, NumArgs,
+ InsertPos);
}
void ClassTemplateDecl::getPartialSpecializations(