35 lines
1.0 KiB
Rust
35 lines
1.0 KiB
Rust
// Copyright 2017 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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//compile-flags: -Z emit-end-regions -Zborrowck=mir -Znll -Znll-dump-cause
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#![allow(warnings)]
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struct Wrap<'p> { p: &'p mut i32 }
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impl<'p> Drop for Wrap<'p> {
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fn drop(&mut self) {
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*self.p += 1;
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}
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}
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struct Foo<'p> { a: String, b: Wrap<'p> }
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fn main() {
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let mut x = 0;
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let wrap = Wrap { p: &mut x };
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let s = String::from("str");
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let foo = Foo { a: s, b: wrap };
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std::mem::drop(foo.a);
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std::mem::drop(foo.b);
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x = 1; //~ ERROR cannot assign to `x` because it is borrowed [E0506]
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// FIXME ^ This currently errors and it should not.
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}
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