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// Tests that `~const` trait bounds can be used to specialize const trait impls.
// check-pass
#![feature(const_trait_impl)]
#![feature(rustc_attrs)]
#![feature(min_specialization)]
#[const_trait]
#[rustc_specialization_trait]
trait Specialize {}
#[const_trait]
trait Foo {
fn foo();
}
impl<T> const Foo for T {
default fn foo() {}
}
impl<T> const Foo for T
where
T: ~const Specialize,
{
fn foo() {}
}
#[const_trait]
trait Bar {
fn bar() {}
}
impl<T> const Bar for T
where
T: ~const Foo,
{
default fn bar() {}
}
impl<T> const Bar for T
where
T: ~const Foo,
T: ~const Specialize,
{
fn bar() {}
}
fn main() {}
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