diff options
Diffstat (limited to 'tests/ui/closures/supertrait-hint-cycle-2.rs')
-rw-r--r-- | tests/ui/closures/supertrait-hint-cycle-2.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/closures/supertrait-hint-cycle-2.rs b/tests/ui/closures/supertrait-hint-cycle-2.rs new file mode 100644 index 000000000..fda81b18d --- /dev/null +++ b/tests/ui/closures/supertrait-hint-cycle-2.rs @@ -0,0 +1,18 @@ +// check-pass + +trait Foo<'a> { + type Input; +} + +impl<F: Fn(u32)> Foo<'_> for F { + type Input = u32; +} + +trait SuperFn: for<'a> Foo<'a> + for<'a> Fn(<Self as Foo<'a>>::Input) {} +impl<T> SuperFn for T where T: for<'a> Fn(<Self as Foo<'a>>::Input) + for<'a> Foo<'a> {} + +fn needs_super(_: impl SuperFn) {} + +fn main() { + needs_super(|_: u32| {}); +} |