35 lines
868 B
Rust
35 lines
868 B
Rust
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// Copyright 2018 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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// revisions: lxl nll
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#![cfg_attr(nll, feature(nll))]
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struct Foo {
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x: u32
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}
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impl Foo {
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fn twiddle(&mut self) -> &mut Self { self }
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fn twaddle(&mut self) -> &mut Self { self }
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fn emit(&mut self) {
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self.x += 1;
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}
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}
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fn main() {
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let mut foo = Foo { x: 0 };
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match 22 {
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22 => &mut foo,
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44 => foo.twiddle(),
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_ => foo.twaddle(),
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}.emit();
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}
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