46 lines
1022 B
Rust
46 lines
1022 B
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(unknown_features)]
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#![feature(box_syntax, old_io, io)]
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use std::io::{self, Write};
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trait Trait {
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fn f(&self);
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}
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#[derive(Copy)]
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struct Struct {
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x: int,
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y: int,
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}
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impl Trait for Struct {
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fn f(&self) {
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println!("Hi!");
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}
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}
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fn foo(mut a: Box<Write>) {}
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// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
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pub fn main() {
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let a = Struct { x: 1, y: 2 };
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let b: Box<Trait> = Box::new(a);
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b.f();
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let c: &Trait = &a;
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c.f();
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let out = io::stdout();
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foo(Box::new(out));
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}
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