| // 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. |
| |
| // Ensure that we can do a destructuring bind of a fixed-size array, |
| // even when the element type has a destructor. |
| |
| |
| #![feature(slice_patterns)] |
| |
| struct D { x: u8 } |
| |
| impl Drop for D { fn drop(&mut self) { } } |
| |
| fn main() { |
| fn d(x: u8) -> D { D { x: x } } |
| |
| let d1 = foo([d(1), d(2), d(3), d(4)], 1); |
| let d3 = foo([d(5), d(6), d(7), d(8)], 3); |
| assert_eq!(d1.x, 2); |
| assert_eq!(d3.x, 8); |
| } |
| |
| fn foo([a, b, c, d]: [D; 4], i: usize) -> D { |
| match i { |
| 0 => a, |
| 1 => b, |
| 2 => c, |
| 3 => d, |
| _ => panic!("unmatched"), |
| } |
| } |