[PATCH] D157201: [Clang] Support qualified name as member designator in offsetof

[Aaron Ballman via Phabricator via cfe-commits]

aaron.ballman added inline comments.


================
Comment at: clang/test/SemaCXX/offsetof.cpp:106
+int x3[__builtin_offsetof(struct X2, X2::static_a) == 0 ? 1 : -1]; // expected-error{{no member named 'static_a'}}
+int x4[__builtin_offsetof(struct X2, X2::X2) == 0 ? 1 : -1]; // expected-error{{no member named 'X2'}}
+
----------------
yichi170 wrote:
> aaron.ballman wrote:
> > There's one more test I'd like to see:
> > ```
> > struct S {
> >   int Foo;
> > };
> > 
> > template <typename Ty>
> > void func() {
> >   static_assert(__builtin_offsetof(Ty, Ty::Foo) == 0, "");
> > }
> > 
> > void inst() {
> >   func<S>();
> > }
> > ```
> It would get the compile error in the current patch, but I think it should be compiled without any error, right?
Correct, that should be accepted: https://godbolt.org/z/1f6a9Yaxa


Repository:
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  https://reviews.llvm.org/D157201/new/

https://reviews.llvm.org/D157201