5c717a6fc2
non-MIR translation is still not supported for these and will happily ICE. This is a [breaking-change] for many uses of slice_patterns.
24 lines
779 B
Rust
24 lines
779 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(slice_patterns)]
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fn main() {
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let mut a = [1, 2, 3, 4];
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let t = match a {
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[1, 2, ref tail..] => tail,
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_ => unreachable!()
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};
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println!("t[0]: {}", t[0]);
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a[2] = 0; //~ ERROR cannot assign to `a[..]` because it is borrowed
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println!("t[0]: {}", t[0]);
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t[0];
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}
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