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-rw-r--r--src/test/ui/traits/inheritance/call-bound-inherited2.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/traits/inheritance/call-bound-inherited2.rs b/src/test/ui/traits/inheritance/call-bound-inherited2.rs
new file mode 100644
index 000000000..8576d29f2
--- /dev/null
+++ b/src/test/ui/traits/inheritance/call-bound-inherited2.rs
@@ -0,0 +1,23 @@
+// run-pass
+#![allow(dead_code)]
+
+trait Foo { fn f(&self) -> isize; }
+trait Bar : Foo { fn g(&self) -> isize; }
+trait Baz : Bar { fn h(&self) -> isize; }
+
+struct A { x: isize }
+
+impl Foo for A { fn f(&self) -> isize { 10 } }
+impl Bar for A { fn g(&self) -> isize { 20 } }
+impl Baz for A { fn h(&self) -> isize { 30 } }
+
+// Call a function on Foo, given a T: Baz,
+// which is inherited via Bar
+fn gg<T:Baz>(a: &T) -> isize {
+ a.f()
+}
+
+pub fn main() {
+ let a = &A { x: 3 };
+ assert_eq!(gg(a), 10);
+}