36 lines
981 B
Rust
36 lines
981 B
Rust
// Copyright 2016 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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macro_rules! width(
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($this:expr) => {
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$this.width.unwrap()
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//~^ ERROR cannot use `self.width` because it was mutably borrowed
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//~| NOTE use of borrowed `*self`
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}
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);
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struct HasInfo {
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width: Option<usize>
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}
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impl HasInfo {
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fn get_size(&mut self, n: usize) -> usize {
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n
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}
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fn get_other(&mut self) -> usize {
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self.get_size(width!(self))
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//~^ NOTE in this expansion of width!
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//~| NOTE borrow of `*self` occurs here
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}
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}
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fn main() {}
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