guards.rs 929 字节
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// Copyright 2012 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.

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// pretty-expanded FIXME #23616

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#[derive(Copy)]
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struct Pair { x: isize, y: isize }
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pub fn main() {
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    let a: isize =
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        match 10 { x if x < 7 => { 1 } x if x < 11 => { 2 } 10 => { 3 } _ => { 4 } };
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    assert_eq!(a, 2);
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    let b: isize =
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        match (Pair {x: 10, y: 20}) {
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          x if x.x < 5 && x.y < 5 => { 1 }
          Pair {x: x, y: y} if x == 10 && y == 20 => { 2 }
          Pair {x: _x, y: _y} => { 3 }
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        };
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    assert_eq!(b, 2);
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}