// 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"); } } }