| // Copyright 2012-2014 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(slice_patterns)] |
| |
| enum t { a(u), b } |
| enum u { c, d } |
| |
| fn match_nested_vecs<'a, T>(l1: Option<&'a [T]>, l2: Result<&'a [T], ()>) -> &'static str { |
| match (l1, l2) { //~ ERROR non-exhaustive patterns: `(Some(&[]), Err(_))` not covered |
| (Some(&[]), Ok(&[])) => "Some(empty), Ok(empty)", |
| (Some(&[_, ..]), Ok(_)) | (Some(&[_, ..]), Err(())) => "Some(non-empty), any", |
| (None, Ok(&[])) | (None, Err(())) | (None, Ok(&[_])) => "None, Ok(less than one element)", |
| (None, Ok(&[_, _, ..])) => "None, Ok(at least two elements)" |
| } |
| } |
| |
| fn main() { |
| let x = t::a(u::c); |
| match x { //~ ERROR non-exhaustive patterns: `a(c)` not covered |
| t::a(u::d) => { panic!("hello"); } |
| t::b => { panic!("goodbye"); } |
| } |
| } |
