diff options
Diffstat (limited to 'tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs')
-rw-r--r-- | tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs b/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs new file mode 100644 index 000000000..a635edb44 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs @@ -0,0 +1,24 @@ +#![feature(non_lifetime_binders)] +//~^ WARN the feature `non_lifetime_binders` is incomplete + +trait Foo: for<T> Bar<T> {} + +trait Bar<T: ?Sized> { + fn method(&self) {} +} + +fn needs_bar(x: &(impl Bar<i32> + ?Sized)) { + x.method(); +} + +impl Foo for () {} + +impl<T: ?Sized> Bar<T> for () {} + +fn main() { + let x: &dyn Foo = &(); + //~^ ERROR the trait `Foo` cannot be made into an object + //~| ERROR the trait `Foo` cannot be made into an object + needs_bar(x); + //~^ ERROR the trait `Foo` cannot be made into an object +} |