Store latest redeclaration for each redeclarable template declaration
This patch adds a Latest field to RedeclarableTemplateDecl's CommonBase
class which is used to store the latest redeclaration.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109755 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index de17568..0ca2837 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -94,6 +94,7 @@
if (First->CommonOrPrev.isNull()) {
CommonBase *CommonPtr = First->newCommon();
First->CommonOrPrev = CommonPtr;
+ CommonPtr->Latest = First;
}
return First->CommonOrPrev.get<CommonBase*>();
}
@@ -106,6 +107,18 @@
return Tmpl;
}
+void RedeclarableTemplateDecl::setPreviousDeclarationImpl(
+ RedeclarableTemplateDecl *Prev) {
+ if (Prev) {
+ CommonBase *Common = Prev->getCommonPtr();
+ Prev = Common->Latest;
+ Common->Latest = this;
+ CommonOrPrev = Prev;
+ } else {
+ assert(CommonOrPrev.is<CommonBase*>() && "Cannot reset TemplateDecl Prev");
+ }
+}
+
//===----------------------------------------------------------------------===//
// FunctionTemplateDecl Implementation
//===----------------------------------------------------------------------===//