24 lines
1010 B
Rust
24 lines
1010 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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struct Foo { a: int, b: int }
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fn main() {
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let mut x = box Foo { a: 1, b: 2 };
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let (a, b) = (&mut x.a, &mut x.b);
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//~^ ERROR cannot borrow `x` (here through borrowing `x.b`) as mutable more than once at a time
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//~^^ NOTE previous borrow of `x` occurs here (through borrowing `x.a`)
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let mut foo = box Foo { a: 1, b: 2 };
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let (c, d) = (&mut foo.a, &foo.b);
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//~^ ERROR cannot borrow `foo` (here through borrowing `foo.b`) as immutable
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//~^^ NOTE previous borrow of `foo` occurs here (through borrowing `foo.a`)
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}
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