diff options
Diffstat (limited to 'tests/ui/suggestions/restrict-existing-type-bounds.rs')
-rw-r--r-- | tests/ui/suggestions/restrict-existing-type-bounds.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/suggestions/restrict-existing-type-bounds.rs b/tests/ui/suggestions/restrict-existing-type-bounds.rs new file mode 100644 index 000000000..07712ce0d --- /dev/null +++ b/tests/ui/suggestions/restrict-existing-type-bounds.rs @@ -0,0 +1,30 @@ +pub trait TryAdd<Rhs = Self> { + type Error; + type Output; + + fn try_add(self, rhs: Rhs) -> Result<Self::Output, Self::Error>; +} + +impl<T: TryAdd> TryAdd for Option<T> { + type Error = <T as TryAdd>::Error; + type Output = Option<<T as TryAdd>::Output>; + + fn try_add(self, rhs: Self) -> Result<Self::Output, Self::Error> { + Ok(self) //~ ERROR mismatched types + } +} + +struct Other<A>(A); + +struct X; + +impl<T: TryAdd<Error = X>> TryAdd for Other<T> { + type Error = <T as TryAdd>::Error; + type Output = Other<<T as TryAdd>::Output>; + + fn try_add(self, rhs: Self) -> Result<Self::Output, Self::Error> { + Ok(self) //~ ERROR mismatched types + } +} + +fn main() {} |