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//! Test unreachable patterns involving deref patterns.
#![feature(deref_patterns)]
#![expect(incomplete_features)]
#![deny(unreachable_patterns)]
fn main() {
match Box::new(false) {
true => {}
false => {}
false => {} //~ ERROR unreachable pattern
}
match Box::new(Box::new(false)) {
true => {}
false => {}
true => {} //~ ERROR unreachable pattern
}
match Box::new((true, Box::new(false))) {
(true, _) => {}
(_, true) => {}
(false, false) => {}
_ => {} //~ ERROR unreachable pattern
}
enum T { A, B, C }
match Box::new((Box::new(T::A), Box::new(T::A))) {
(T::A | T::B, T::A | T::C) => {}
(T::A, T::C) => {} //~ ERROR unreachable pattern
(T::B, T::A) => {} //~ ERROR unreachable pattern
_ => {}
}
}
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