97d234935f
This is a re-application ofdc67299which was reverted inf63adf5bbecause it broke the build. The issue should now be fixed. Attribution note: The original author of this patch is Erik Pilkington. I'm only trying to land it after rebasing. Differential Revision: https://reviews.llvm.org/D91630
43 lines
2.2 KiB
C++
43 lines
2.2 KiB
C++
// RUN: %clang_cc1 -pedantic -triple x86_64-apple-macos11 -std=c++20 -fsyntax-only -verify %s
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static_assert(__has_extension(cxx_attributes_on_using_declarations), "");
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namespace NS { typedef int x; }
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[[clang::annotate("foo")]] using NS::x; // expected-warning{{ISO C++ does not allow an attribute list to appear here}}
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[[deprecated]] using NS::x; // expected-warning {{'deprecated' currently has no effect on a using declaration}} expected-warning{{ISO C++ does not allow}}
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using NS::x [[deprecated]]; // expected-warning {{'deprecated' currently has no effect on a using declaration}} expected-warning{{ISO C++ does not allow}}
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using NS::x __attribute__((deprecated)); // expected-warning {{'deprecated' currently has no effect on a using declaration}}
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using NS::x __attribute__((availability(macos,introduced=1))); // expected-warning {{'availability' currently has no effect on a using declaration}}
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[[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}}
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// expected-warning@+1 3 {{ISO C++ does not allow an attribute list to appear here}}
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[[clang::annotate("A")]] using NS::x [[clang::annotate("Y")]], NS::x [[clang::annotate("Z")]];
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template <class T>
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struct S : T {
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[[deprecated]] using typename T::x; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}}
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[[deprecated]] using T::y; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}}
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using typename T::z [[deprecated]]; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}}
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using T::a [[deprecated]]; // expected-warning{{ISO C++ does not allow}} expected-warning {{'deprecated' currently has no effect on a using declaration}}
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};
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struct Base {};
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template <class B>
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struct DepBase1 : B {
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using B::B [[]];
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};
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template <class B>
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struct DepBase2 : B {
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using B::B __attribute__(());
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};
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DepBase1<Base> db1;
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DepBase2<Base> db2;
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