| // 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. |
| |
| |
| #![feature(advanced_slice_patterns)] |
| #![feature(slice_patterns)] |
| |
| fn a() { |
| let x = [1]; |
| match x { |
| [a] => { |
| assert_eq!(a, 1); |
| } |
| } |
| } |
| |
| fn b() { |
| let x = [1, 2, 3]; |
| match x { |
| [a, b, c..] => { |
| assert_eq!(a, 1); |
| assert_eq!(b, 2); |
| let expected: &[_] = &[3]; |
| assert_eq!(c, expected); |
| } |
| } |
| match x { |
| [a.., b, c] => { |
| let expected: &[_] = &[1]; |
| assert_eq!(a, expected); |
| assert_eq!(b, 2); |
| assert_eq!(c, 3); |
| } |
| } |
| match x { |
| [a, b.., c] => { |
| assert_eq!(a, 1); |
| let expected: &[_] = &[2]; |
| assert_eq!(b, expected); |
| assert_eq!(c, 3); |
| } |
| } |
| match x { |
| [a, b, c] => { |
| assert_eq!(a, 1); |
| assert_eq!(b, 2); |
| assert_eq!(c, 3); |
| } |
| } |
| } |
| |
| fn c() { |
| let x = [1]; |
| match x { |
| [2, ..] => panic!(), |
| [..] => () |
| } |
| } |
| |
| fn d() { |
| let x = [1, 2, 3]; |
| let branch = match x { |
| [1, 1, ..] => 0, |
| [1, 2, 3, ..] => 1, |
| [1, 2, ..] => 2, |
| _ => 3 |
| }; |
| assert_eq!(branch, 1); |
| } |
| |
| fn e() { |
| let x: &[isize] = &[1, 2, 3]; |
| match x { |
| [1, 2] => (), |
| [..] => () |
| } |
| } |
| |
| pub fn main() { |
| a(); |
| b(); |
| c(); |
| d(); |
| e(); |
| } |