mirror of https://github.com/rust-lang/rust
23 lines
522 B
Rust
23 lines
522 B
Rust
#![feature(fn_traits, unboxed_closures)]
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struct Foo;
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impl<'a, T> Fn<(&'a T,)> for Foo {
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extern "rust-call" fn call(&self, (_,): (T,)) {}
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//~^ ERROR: has an incompatible type for trait
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}
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impl<'a, T> FnMut<(&'a T,)> for Foo {
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extern "rust-call" fn call_mut(&mut self, (_,): (T,)) {}
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//~^ ERROR: has an incompatible type for trait
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}
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impl<'a, T> FnOnce<(&'a T,)> for Foo {
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type Output = ();
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extern "rust-call" fn call_once(self, (_,): (T,)) {}
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//~^ ERROR: has an incompatible type for trait
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}
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fn main() {}
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