34 lines
942 B
Rust
34 lines
942 B
Rust
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// 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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enum Enum<'a> {
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A(&'a int),
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B(bool),
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}
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fn foo() -> int {
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let mut n = 42;
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let mut x = A(&mut n);
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match x {
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A(_) if { x = B(false); false } => 1,
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//~^ ERROR cannot assign in a pattern guard
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A(_) if { let y = &mut x; *y = B(false); false } => 1,
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//~^ ERROR cannot mutably borrow in a pattern guard
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//~^^ ERROR cannot assign in a pattern guard
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A(p) => *p,
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B(_) => 2,
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}
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}
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fn main() {
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foo();
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}
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