[rustc.git] / src / test / ui / issues / issue-19982.rs

// check-pass

#![feature(fn_traits, unboxed_closures)]

#[allow(dead_code)]
struct Foo;

impl Fn<(&(),)> for Foo {
    extern "rust-call" fn call(&self, (_,): (&(),)) {}
}

impl FnMut<(&(),)> for Foo {
    extern "rust-call" fn call_mut(&mut self, (_,): (&(),)) {}
}

impl FnOnce<(&(),)> for Foo {
    type Output = ();

    extern "rust-call" fn call_once(self, (_,): (&(),)) {}
}

fn main() {}
Commit	Line	Data
d9bb1a4e	1	// check-pass
85aaf69f	2
0bf4aa26 XL	3	#![feature(fn_traits, unboxed_closures)]
	4
	5	#[allow(dead_code)]
85aaf69f	6	struct Foo;
223e47cc	7
0bf4aa26 XL	8	impl Fn<(&(),)> for Foo {
	9	extern "rust-call" fn call(&self, (_,): (&(),)) {}
	10	}
	11
	12	impl FnMut<(&(),)> for Foo {
	13	extern "rust-call" fn call_mut(&mut self, (_,): (&(),)) {}
	14	}
	15
	16	impl FnOnce<(&(),)> for Foo {
	17	type Output = ();
	18
	19	extern "rust-call" fn call_once(self, (_,): (&(),)) {}
	20	}
c34b1796	21
223e47cc	22	fn main() {}