1 files changed, 37 insertions, 0 deletions
diff --git a/tests/ui/traits/inheritance/subst2.rs b/tests/ui/traits/inheritance/subst2.rs
new file mode 100644
index 000000000..ccc9628c7
--- /dev/null
+++ b/tests/ui/traits/inheritance/subst2.rs
@@ -0,0 +1,37 @@
+// run-pass
+
+trait Panda<T> {
+    fn chomp(&self, bamboo: &T) -> T;
+}
+
+trait Add<RHS,Result>: Panda<RHS> {
+    fn add(&self, rhs: &RHS) -> Result;
+}
+
+trait MyNum : Sized + Add<Self,Self> { }
+
+struct MyInt { val: isize }
+
+impl Panda<MyInt> for MyInt {
+    fn chomp(&self, bamboo: &MyInt) -> MyInt {
+        mi(self.val + bamboo.val)
+    }
+}
+
+impl Add<MyInt, MyInt> for MyInt {
+    fn add(&self, other: &MyInt) -> MyInt { self.chomp(other) }
+}
+
+impl MyNum for MyInt {}
+
+fn f<T:MyNum>(x: T, y: T) -> T {
+    return x.add(&y).chomp(&y);
+}
+
+fn mi(v: isize) -> MyInt { MyInt { val: v } }
+
+pub fn main() {
+    let (x, y) = (mi(3), mi(5));
+    let z = f(x, y);
+    assert_eq!(z.val, 13);
+}