From: Peter Collingbourne <peter@pcc.me.uk>
Date: Thu, 29 Jul 2010 16:12:09 +0000 (+0000)
Subject: Implement RedeclarableTemplateDecl::getNextRedeclaration
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f88718ea0ca0d64b7fd31d109f1d9ec769a9c45f;p=clang

Implement RedeclarableTemplateDecl::getNextRedeclaration

This patch uses the newly added Latest field of CommonBase to provide
a getNextRedeclaration() implementation for RedeclarableTemplateDecl.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109756 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/DeclTemplate.h b/include/clang/AST/DeclTemplate.h
index 8d3cfad817..b26c569d5d 100644
--- a/include/clang/AST/DeclTemplate.h
+++ b/include/clang/AST/DeclTemplate.h
@@ -592,6 +592,8 @@ public:
     return getInstantiatedFromMemberTemplateImpl();
   }
 
+  virtual RedeclarableTemplateDecl *getNextRedeclaration();
+
   // Implement isa/cast/dyncast/etc.
   static bool classof(const Decl *D) { return classofKind(D->getKind()); }
   static bool classof(const RedeclarableTemplateDecl *D) { return true; }
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index 0ca2837627..25df086e73 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -119,6 +119,13 @@ void RedeclarableTemplateDecl::setPreviousDeclarationImpl(
   }
 }
 
+RedeclarableTemplateDecl *RedeclarableTemplateDecl::getNextRedeclaration() {
+  if (CommonOrPrev.is<RedeclarableTemplateDecl*>())
+    return CommonOrPrev.get<RedeclarableTemplateDecl*>();
+  CommonBase *Common = CommonOrPrev.get<CommonBase*>();
+  return Common ? Common->Latest : this;
+}
+
 //===----------------------------------------------------------------------===//
 // FunctionTemplateDecl Implementation
 //===----------------------------------------------------------------------===//