rust/tests/ui/match/issue-42679.rs

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//@ run-pass
#![feature(box_patterns)]
#[derive(Debug, PartialEq)]
enum Test {
Foo(usize),
Bar(isize),
}
fn main() {
let a = Box::new(Test::Foo(10));
let b = Box::new(Test::Bar(-20));
match (a, b) {
(_, box Test::Foo(_)) => unreachable!(),
(box Test::Foo(x), b) => {
assert_eq!(x, 10);
assert_eq!(b, Box::new(Test::Bar(-20)));
},
_ => unreachable!(),
}
}