Check for unexpanded parameter packs in default arguments.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121962 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateVariadic.cpp b/lib/Sema/SemaTemplateVariadic.cpp
index 07873ef..20b05d5 100644
--- a/lib/Sema/SemaTemplateVariadic.cpp
+++ b/lib/Sema/SemaTemplateVariadic.cpp
@@ -238,3 +238,19 @@
DiagnoseUnexpandedParameterPacks(*this, NameInfo.getLoc(), UPPC, Unexpanded);
return true;
}
+
+bool Sema::DiagnoseUnexpandedParameterPack(SourceLocation Loc,
+ TemplateName Template,
+ UnexpandedParameterPackContext UPPC) {
+
+ if (Template.isNull() || !Template.containsUnexpandedParameterPack())
+ return false;
+
+ llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded;
+ CollectUnexpandedParameterPacksVisitor(Unexpanded)
+ .TraverseTemplateName(Template);
+ assert(!Unexpanded.empty() && "Unable to find unexpanded parameter packs");
+ DiagnoseUnexpandedParameterPacks(*this, Loc, UPPC, Unexpanded);
+ return true;
+}
+