Teach PackExpansionExpr to keep track of the number of pack expansions
it will expand to, if known. Propagate this information throughout Sema.
llvm-svn: 123470
diff --git a/clang/lib/AST/DeclTemplate.cpp b/clang/lib/AST/DeclTemplate.cpp
index bd91fac..e7902e9 100644
--- a/clang/lib/AST/DeclTemplate.cpp
+++ b/clang/lib/AST/DeclTemplate.cpp
@@ -332,7 +332,8 @@
if (NTTP->isParameterPack())
E = new (Context) PackExpansionExpr(Context.DependentTy, E,
- NTTP->getLocation());
+ NTTP->getLocation(),
+ llvm::Optional<unsigned>());
Arg = TemplateArgument(E);
} else {
TemplateTemplateParmDecl *TTP = cast<TemplateTemplateParmDecl>(*Param);