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#![feature(type_alias_impl_trait)]
type Bar = impl Send;
// While i32 is structural-match, we do not want to leak this information.
// (See https://github.com/rust-lang/rust/issues/72156)
const fn leak_free() -> Bar {
7i32
}
const LEAK_FREE: Bar = leak_free();
fn leak_free_test() {
match LEAK_FREE {
LEAK_FREE => (),
//~^ `Bar` cannot be used in patterns
_ => (),
}
}
fn main() {}
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