Move the functionality of ASTContext::getCanonicalDecl(), into a virtual method Decl::getCanonicalDecl().
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76273 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index b43aadb..f680606 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -2085,38 +2085,7 @@
Decl *ASTContext::getCanonicalDecl(Decl *D) {
if (!D)
return 0;
-
- if (TagDecl *Tag = dyn_cast<TagDecl>(D)) {
- QualType T = getTagDeclType(Tag);
- return cast<TagDecl>(cast<TagType>(T.getTypePtr()->CanonicalType)
- ->getDecl());
- }
-
- if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(D)) {
- while (Template->getPreviousDeclaration())
- Template = Template->getPreviousDeclaration();
- return Template;
- }
-
- if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) {
- while (Function->getPreviousDeclaration())
- Function = Function->getPreviousDeclaration();
- return const_cast<FunctionDecl *>(Function);
- }
-
- if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(D)) {
- while (FunTmpl->getPreviousDeclaration())
- FunTmpl = FunTmpl->getPreviousDeclaration();
- return FunTmpl;
- }
-
- if (const VarDecl *Var = dyn_cast<VarDecl>(D)) {
- while (Var->getPreviousDeclaration())
- Var = Var->getPreviousDeclaration();
- return const_cast<VarDecl *>(Var);
- }
-
- return D;
+ return D->getCanonicalDecl();
}
TemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) {