================
@@ -422,8 +445,8 @@ Sema::DiagnoseUnexpandedParameterPacks(SourceLocation Loc,
if (const TemplateTypeParmType *TTP
= Unexpanded[I].first.dyn_cast<const TemplateTypeParmType *>())
Name = TTP->getIdentifier();
- else
- Name = cast<NamedDecl *>(Unexpanded[I].first)->getIdentifier();
+ else if (NamedDecl *ND = Unexpanded[I].first.dyn_cast<NamedDecl *>())
+ Name = ND->getIdentifier();
----------------
ricejasonf wrote:
It is possible there is a completely different approach that uses BindingDecl
more directly as the parameter pack. I think it would still run into issues
with BindingDecl not being a VarDecl so the ResolvedUnexpandedPackExpr worked
out, but it was part of a more general approach to dealing with packs.
https://github.com/llvm/llvm-project/pull/121417
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