| 1 | // RUN: %check_clang_tidy -std=c++17-or-later %s misc-unused-using-decls %t -- --fix-notes -- -fno-delayed-template-parsing |
| 2 | |
| 3 | namespace ns { |
| 4 | |
| 5 | template <typename T> class Foo { |
| 6 | public: |
| 7 | Foo(T); |
| 8 | }; |
| 9 | // Deduction guide (CTAD) |
| 10 | template <typename T> Foo(T t) -> Foo<T>; |
| 11 | |
| 12 | template <typename T> class Bar { |
| 13 | public: |
| 14 | Bar(T); |
| 15 | }; |
| 16 | |
| 17 | template <typename T> class Unused {}; |
| 18 | |
| 19 | } // namespace ns |
| 20 | |
| 21 | using ns::Bar; |
| 22 | using ns::Foo; |
| 23 | using ns::Unused; // Unused |
| 24 | // CHECK-MESSAGES: :[[@LINE-1]]:11: warning: using decl 'Unused' is unused |
| 25 | // CHECK-FIXES: {{^}}// Unused |
| 26 | |
| 27 | void f() { |
| 28 | Foo(123); |
| 29 | Bar(1); |
| 30 | } |
| 31 | |