// 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. use std::default::Default; struct X { pub x: uint } impl Default for X { fn default() -> X { X { x: 42_usize } } } struct Y<T> { pub y: T } impl<T: Default> Default for Y<T> { fn default() -> Y<T> { Y { y: Default::default() } } } fn main() { let X { x: _ } = Default::default(); let Y { y: X { x } } = Default::default(); }