mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 02:33:55 +00:00
21 lines
423 B
Rust
21 lines
423 B
Rust
|
#![allow(warnings)]
|
||
|
|
|
||
|
|
struct Wrap<'p> { p: &'p mut i32 }
|
||
|
|
|
||
|
|
impl<'p> Drop for Wrap<'p> {
|
||
|
|
fn drop(&mut self) {
|
||
|
|
*self.p += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
struct Foo<'p> { a: String, b: Wrap<'p> }
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let mut x = 0;
|
||
|
|
let wrap = Wrap { p: &mut x };
|
||
|
|
let s = String::from("str");
|
||
|
|
let foo = Foo { a: s, b: wrap };
|
||
|
|
std::mem::drop(foo.a);
|
||
|
|
x = 1; //~ ERROR cannot assign to `x` because it is borrowed [E0506]
|
||
|
|
}
|