diff options
Diffstat (limited to 'tests/ui/unsized-locals/unsized-exprs.rs')
-rw-r--r-- | tests/ui/unsized-locals/unsized-exprs.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/unsized-locals/unsized-exprs.rs b/tests/ui/unsized-locals/unsized-exprs.rs new file mode 100644 index 000000000..1729b9ffa --- /dev/null +++ b/tests/ui/unsized-locals/unsized-exprs.rs @@ -0,0 +1,28 @@ +#![feature(unsized_tuple_coercion, unsized_fn_params)] + +struct A<X: ?Sized>(X); + +fn udrop<T: ?Sized>(_x: T) {} +fn foo() -> Box<[u8]> { + Box::new(*b"foo") +} +fn tfoo() -> Box<(i32, [u8])> { + Box::new((42, *b"foo")) +} +fn afoo() -> Box<A<[u8]>> { + Box::new(A(*b"foo")) +} + +impl std::ops::Add<i32> for A<[u8]> { + type Output = (); + fn add(self, _rhs: i32) -> Self::Output {} +} + +fn main() { + udrop::<(i32, [u8])>((42, *foo())); + //~^ERROR E0277 + udrop::<A<[u8]>>(A { 0: *foo() }); + //~^ERROR E0277 + udrop::<A<[u8]>>(A(*foo())); + //~^ERROR E0277 +} |