rust/tests/ui/binding/func-arg-incomplete-pattern.rs
2024-02-16 20:02:50 +00:00

23 lines
480 B
Rust

//@ run-pass
#![allow(dead_code)]
// Test that we do not leak when the arg pattern must drop part of the
// argument (in this case, the `y` field).
struct Foo {
x: Box<usize>,
y: Box<usize>,
}
fn foo(Foo {x, ..}: Foo) -> *const usize {
let addr: *const usize = &*x;
addr
}
pub fn main() {
let obj: Box<_> = Box::new(1);
let objptr: *const usize = &*obj;
let f = Foo { x: obj, y: Box::new(2) };
let xptr = foo(f);
assert_eq!(objptr, xptr);
}