1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/newtype.rs b/src/test/ui/newtype.rs
new file mode 100644
index 000000000..f02b66f45
--- /dev/null
+++ b/src/test/ui/newtype.rs
@@ -0,0 +1,23 @@
+// run-pass
+
+#![allow(non_camel_case_types)]
+#[derive(Copy, Clone)]
+struct mytype(Mytype);
+
+#[derive(Copy, Clone)]
+struct Mytype {
+    compute: fn(mytype) -> isize,
+    val: isize,
+}
+
+fn compute(i: mytype) -> isize {
+    let mytype(m) = i;
+    return m.val + 20;
+}
+
+pub fn main() {
+    let myval = mytype(Mytype{compute: compute, val: 30});
+    println!("{}", compute(myval));
+    let mytype(m) = myval;
+    assert_eq!((m.compute)(myval), 50);
+}