29 lines
805 B
Rust
29 lines
805 B
Rust
// This is testing how the diagnostic from issue #54556 behaves when
|
|
// the destructor code is attached to a place held in a field of the
|
|
// temporary being dropped.
|
|
//
|
|
// Eventually it would be nice if the diagnostic would actually report
|
|
// that specific place and its type that implements the `Drop` trait.
|
|
// But for the short term, it is acceptable to just print out the
|
|
// whole type of the temporary.
|
|
|
|
#![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 };
|
|
x = 1; //~ ERROR cannot assign to `x` because it is borrowed [E0506]
|
|
}
|