arphaman added a comment.
In https://reviews.llvm.org/D28514#651675, @ahatanak wrote:
> This is not invalid:
>
> namespace Foo {
> class C { };
> }
> namespace Bar { class C { }; }
>
> void foo1() {
> using Foo::C;
> {
> using Bar::C;
> }
> }
>
I see, that could happen if the previous UsingShadow is in an outer scope. Yes,
I guess then Foo::C using decl should hide Bar::C using shadow decl. I'll post
the patch which checks that the two decls have the same decl context (should be
faster than checking if a using shadow decl is contained in a using decl).
Repository:
rL LLVM
https://reviews.llvm.org/D28514
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