diff options
Diffstat (limited to 'tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs')
-rw-r--r-- | tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs new file mode 100644 index 000000000..92d8be6bb --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs @@ -0,0 +1,49 @@ +// 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() {} |