| #![feature(fn_traits, unboxed_closures)] |
| |
| struct Foo; |
| |
| impl<'a, T> Fn<(&'a T,)> for Foo { |
| extern "rust-call" fn call(&self, (_,): (T,)) {} |
| //~^ ERROR: has an incompatible type for trait |
| //~| expected reference |
| } |
| |
| impl<'a, T> FnMut<(&'a T,)> for Foo { |
| extern "rust-call" fn call_mut(&mut self, (_,): (T,)) {} |
| //~^ ERROR: has an incompatible type for trait |
| //~| expected reference |
| } |
| |
| impl<'a, T> FnOnce<(&'a T,)> for Foo { |
| type Output = (); |
| |
| extern "rust-call" fn call_once(self, (_,): (T,)) {} |
| //~^ ERROR: has an incompatible type for trait |
| //~| expected reference |
| } |
| |
| fn main() {} |
