| error[E0053]: method `call` has an incompatible type for trait |
| --> $DIR/issue-20225.rs:6:3 |
| | |
| LL | impl<'a, T> Fn<(&'a T,)> for Foo { |
| | - this type parameter |
| LL | extern "rust-call" fn call(&self, (_,): (T,)) {} |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&T`, found type parameter `T` |
| | |
| = note: expected fn pointer `extern "rust-call" fn(&Foo, (&'a T,))` |
| found fn pointer `extern "rust-call" fn(&Foo, (T,))` |
| = help: type parameters must be constrained to match other types |
| = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters |
| |
| error[E0053]: method `call_mut` has an incompatible type for trait |
| --> $DIR/issue-20225.rs:11:3 |
| | |
| LL | impl<'a, T> FnMut<(&'a T,)> for Foo { |
| | - this type parameter |
| LL | extern "rust-call" fn call_mut(&mut self, (_,): (T,)) {} |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&T`, found type parameter `T` |
| | |
| = note: expected fn pointer `extern "rust-call" fn(&mut Foo, (&'a T,))` |
| found fn pointer `extern "rust-call" fn(&mut Foo, (T,))` |
| = help: type parameters must be constrained to match other types |
| = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters |
| |
| error[E0053]: method `call_once` has an incompatible type for trait |
| --> $DIR/issue-20225.rs:18:3 |
| | |
| LL | impl<'a, T> FnOnce<(&'a T,)> for Foo { |
| | - this type parameter |
| ... |
| LL | extern "rust-call" fn call_once(self, (_,): (T,)) {} |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&T`, found type parameter `T` |
| | |
| = note: expected fn pointer `extern "rust-call" fn(Foo, (&'a T,))` |
| found fn pointer `extern "rust-call" fn(Foo, (T,))` |
| = help: type parameters must be constrained to match other types |
| = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters |
| |
| error: aborting due to 3 previous errors |
| |
| For more information about this error, try `rustc --explain E0053`. |
