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// RUN: %clang_cc1 -std=c++20 -emit-pch -o %t.a %s
// RUN: %clang_cc1 -std=c++20 -include-pch %t.a %s -verify
#ifndef HEADER
#define HEADER
namespace preferred_name {
template<typename T> struct X;
using Y = X<int>;
using Z = X<float>;
template<typename T> struct [[using clang: preferred_name(Y), preferred_name(Z)]] X {};
Y y;
}
namespace aligned {
// PR48434: ensure attributes don't introduce deserialization cycles.
template<typename T> struct X1;
using Y1 = X1<int>;
template<typename T> struct alignas(Y1*) X1 {};
Y1 y1;
template<typename T> struct X2;
using Y2 = X2<int>;
template<typename T> struct alignas(Y2*) X2 {};
}
#else
namespace preferred_name {
Z z;
template<typename T> T forget(T t) { return t; }
void f() {
forget(y).foo(); // expected-error {{no member named 'foo' in 'preferred_name::Y'}}
forget(z).foo(); // expected-error {{no member named 'foo' in 'preferred_name::Z'}}
}
}
namespace aligned {
extern Y1 y1;
extern Y2 y2;
static_assert(alignof(Y1) == alignof(Y1*), "");
static_assert(alignof(Y2) == alignof(Y2*), "");
}
#endif
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