diff options
Diffstat (limited to 'tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs')
-rw-r--r-- | tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs b/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs new file mode 100644 index 000000000..43cd773bf --- /dev/null +++ b/tests/ui/traits/new-solver/trait-upcast-lhs-needs-normalization.rs @@ -0,0 +1,20 @@ +// check-pass +// compile-flags: -Ztrait-solver=next + +#![feature(trait_upcasting)] + +pub trait A {} +pub trait B: A {} + +pub trait Mirror { + type Assoc: ?Sized; +} +impl<T: ?Sized> Mirror for T { + type Assoc = T; +} + +pub fn foo<'a>(x: &'a <dyn B + 'static as Mirror>::Assoc) -> &'a (dyn A + 'static) { + x +} + +fn main() {} |