1*97d23493SLouis Dionne // RUN: %clang_cc1 -pedantic -triple x86_64-apple-macos11 -std=c++20 -fsyntax-only -verify %s 2*97d23493SLouis Dionne 3*97d23493SLouis Dionne static_assert(__has_extension(cxx_attributes_on_using_declarations), ""); 4*97d23493SLouis Dionne 5*97d23493SLouis Dionne namespace NS { typedef int x; } 6*97d23493SLouis Dionne 7*97d23493SLouis Dionne [[clang::annotate("foo")]] using NS::x; // expected-warning{{ISO C++ does not allow an attribute list to appear here}} 8*97d23493SLouis Dionne 9*97d23493SLouis Dionne 10*97d23493SLouis Dionne [[deprecated]] using NS::x; // expected-warning {{'deprecated' currently has no effect on a using declaration}} expected-warning{{ISO C++ does not allow}} 11*97d23493SLouis Dionne using NS::x [[deprecated]]; // expected-warning {{'deprecated' currently has no effect on a using declaration}} expected-warning{{ISO C++ does not allow}} 12*97d23493SLouis Dionne using NS::x __attribute__((deprecated)); // expected-warning {{'deprecated' currently has no effect on a using declaration}} 13*97d23493SLouis Dionne using NS::x __attribute__((availability(macos,introduced=1))); // expected-warning {{'availability' currently has no effect on a using declaration}} 14*97d23493SLouis Dionne 15*97d23493SLouis Dionne [[clang::availability(macos,introduced=1)]] using NS::x; // expected-warning {{'availability' currently has no effect on a using declaration}} expected-warning{{ISO C++ does not allow}} 16*97d23493SLouis Dionne 17*97d23493SLouis Dionne // expected-warning@+1 3 {{ISO C++ does not allow an attribute list to appear here}} 18*97d23493SLouis Dionne [[clang::annotate("A")]] using NS::x [[clang::annotate("Y")]], NS::x [[clang::annotate("Z")]]; 19*97d23493SLouis Dionne 20*97d23493SLouis Dionne template <class T> 21*97d23493SLouis Dionne struct S : T { 22*97d23493SLouis Dionne [[deprecated]] using typename T::x; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}} 23*97d23493SLouis Dionne [[deprecated]] using T::y; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}} 24*97d23493SLouis Dionne 25*97d23493SLouis Dionne using typename T::z [[deprecated]]; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}} 26*97d23493SLouis Dionne using T::a [[deprecated]]; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}} 27*97d23493SLouis Dionne }; 28*97d23493SLouis Dionne 29*97d23493SLouis Dionne struct Base {}; 30*97d23493SLouis Dionne 31*97d23493SLouis Dionne template <class B> 32*97d23493SLouis Dionne struct DepBase1 : B { 33*97d23493SLouis Dionne using B::B [[]]; 34*97d23493SLouis Dionne 35*97d23493SLouis Dionne }; 36*97d23493SLouis Dionne template <class B> 37*97d23493SLouis Dionne struct DepBase2 : B { 38*97d23493SLouis Dionne using B::B __attribute__(()); 39*97d23493SLouis Dionne }; 40*97d23493SLouis Dionne 41*97d23493SLouis Dionne DepBase1<Base> db1; 42*97d23493SLouis Dionne DepBase2<Base> db2; 43