src/test/ui/feature-gate-slice-patterns.rs

// 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.

// Test that slice pattern syntax with `..` is gated by `slice_patterns` feature gate

fn main() {
    let x = [1, 2, 3, 4, 5];
    match x {
        [1, 2, ..] => {} //~ ERROR syntax for subslices in slice patterns is not yet stabilized
        [1, .., 5] => {} //~ ERROR syntax for subslices in slice patterns is not yet stabilized
        [.., 4, 5] => {} //~ ERROR syntax for subslices in slice patterns is not yet stabilized
    }

    let x = [ 1, 2, 3, 4, 5 ];
    match x {
        [ xs.., 4, 5 ] => {} //~ ERROR syntax for subslices in slice patterns is not yet stabilized
        [ 1, xs.., 5 ] => {} //~ ERROR syntax for subslices in slice patterns is not yet stabilized
        [ 1, 2, xs.. ] => {} //~ ERROR syntax for subslices in slice patterns is not yet stabilized
    }
}