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// Test that specializing on the well-formed predicates of the trait and
// self-type of an impl is allowed.
// check-pass
#![feature(min_specialization)]
struct OrdOnly<T: Ord>(T);
trait SpecTrait<U> {
fn f();
}
impl<T, U> SpecTrait<U> for T {
default fn f() {}
}
impl<T: Ord> SpecTrait<()> for OrdOnly<T> {
fn f() {}
}
impl<T: Ord> SpecTrait<OrdOnly<T>> for () {
fn f() {}
}
impl<T: Ord, U: Ord, V: Ord> SpecTrait<(OrdOnly<T>, OrdOnly<U>)> for &[OrdOnly<V>] {
fn f() {}
}
fn main() {}
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