| trait MapLookup<Q> { | |
| type MapValue; | |
| } | |
| impl<K> MapLookup<K> for K { | |
| type MapValue = K; | |
| } | |
| trait Map: MapLookup<<Self as Map>::Key> { | |
| type Key; | |
| } | |
| impl<K> Map for K { | |
| type Key = K; | |
| } | |
| fn main() { | |
| let _ = &() | |
| as &dyn Map<Key=u32,MapValue=u32>; | |
| //~^ ERROR E0038 | |
| } |