1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/closures/cannot-call-unsized-via-ptr.rs b/tests/ui/closures/cannot-call-unsized-via-ptr.rs
new file mode 100644
index 000000000..5ce4650b0
--- /dev/null
+++ b/tests/ui/closures/cannot-call-unsized-via-ptr.rs
@@ -0,0 +1,10 @@
+#![feature(unsized_fn_params)]
+
+fn main() {
+    // Simple coercion
+    let f: fn([u8]) = |_result| {};
+    //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
+
+    let slice: Box<[u8]> = Box::new([1; 8]);
+    f(*slice);
+}