| // Copyright 2014 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. |
| |
| // compile-pass |
| // pretty-expanded FIXME #23616 |
| |
| #![feature(fn_traits, unboxed_closures)] |
| |
| use std::ops::Fn; |
| |
| trait Response { fn dummy(&self) { } } |
| trait Request { fn dummy(&self) { } } |
| trait Ingot<R, S> { |
| fn enter(&mut self, _: &mut R, _: &mut S, a: &mut Alloy) -> Status; |
| } |
| |
| #[allow(dead_code)] |
| struct HelloWorld; |
| |
| struct SendFile; |
| struct Alloy; |
| enum Status { |
| Continue |
| } |
| |
| impl Alloy { |
| fn find<T>(&self) -> Option<T> { |
| None |
| } |
| } |
| |
| impl<'b> Fn<(&'b mut (Response+'b),)> for SendFile { |
| extern "rust-call" fn call(&self, (_res,): (&'b mut (Response+'b),)) {} |
| } |
| |
| impl<'b> FnMut<(&'b mut (Response+'b),)> for SendFile { |
| extern "rust-call" fn call_mut(&mut self, (_res,): (&'b mut (Response+'b),)) { |
| self.call((_res,)) |
| } |
| } |
| |
| impl<'b> FnOnce<(&'b mut (Response+'b),)> for SendFile { |
| type Output = (); |
| |
| extern "rust-call" fn call_once(self, (_res,): (&'b mut (Response+'b),)) { |
| self.call((_res,)) |
| } |
| } |
| |
| impl<Rq: Request, Rs: Response> Ingot<Rq, Rs> for HelloWorld { |
| fn enter(&mut self, _req: &mut Rq, res: &mut Rs, alloy: &mut Alloy) -> Status { |
| let send_file = alloy.find::<SendFile>().unwrap(); |
| send_file(res); |
| Status::Continue |
| } |
| } |
| |
| fn main() {} |
