about summary refs log tree commit diff
path: root/src/test/ui/run-pass/traits/trait-inheritance-call-bound-inherited.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/ui/run-pass/traits/trait-inheritance-call-bound-inherited.rs')
-rw-r--r--src/test/ui/run-pass/traits/trait-inheritance-call-bound-inherited.rs28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/run-pass/traits/trait-inheritance-call-bound-inherited.rs b/src/test/ui/run-pass/traits/trait-inheritance-call-bound-inherited.rs
new file mode 100644
index 00000000000..2fb2b9274c6
--- /dev/null
+++ b/src/test/ui/run-pass/traits/trait-inheritance-call-bound-inherited.rs
@@ -0,0 +1,28 @@
+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
+trait Foo { fn f(&self) -> isize; }
+trait Bar : Foo { fn g(&self) -> isize; }
+
+struct A { x: isize }
+
+impl Foo for A { fn f(&self) -> isize { 10 } }
+impl Bar for A { fn g(&self) -> isize { 20 } }
+
+// Call a function on Foo, given a T: Bar
+fn gg<T:Bar>(a: &T) -> isize {
+    a.f()
+}
+
+pub fn main() {
+    let a = &A { x: 3 };
+    assert_eq!(gg(a), 10);
+}