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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Regression test for #23827
#![feature(core, unboxed_closures)]
pub struct Prototype {
pub target: u32
}
trait Component {
fn apply(self, e: u32);
}
impl<C: Component> Fn<(C,)> for Prototype {
extern "rust-call" fn call(&self, (comp,): (C,)) -> Prototype {
comp.apply(self.target);
*self
}
}
impl<C: Component> FnMut<(C,)> for Prototype {
extern "rust-call" fn call_mut(&mut self, (comp,): (C,)) -> Prototype {
Fn::call(*&self, (comp,))
}
}
impl<C: Component> FnOnce<(C,)> for Prototype {
//~^ ERROR not all trait items implemented, missing: `Output` [E0046]
extern "rust-call" fn call_once(self, (comp,): (C,)) -> Prototype {
Fn::call(&self, (comp,))
}
}
fn main() {}
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