rustc: Implement simple uses of &trait

1 files changed, 21 insertions, 0 deletions

diff --git a/src/test/run-pass/trait-region-pointer-simple.rs b/src/test/run-pass/trait-region-pointer-simple.rs
new file mode 100644
index 00000000000..dfcbfc3993f
--- /dev/null
+++ b/src/test/run-pass/trait-region-pointer-simple.rs
@@ -0,0 +1,21 @@
+trait Foo {
+    fn f() -> int;
+}
+
+struct A {
+    x: int
+}
+
+impl A : Foo {
+    fn f() -> int {
+        io::println(~"Today's number is " + self.x.to_str());
+        return self.x;
+    }
+}
+
+fn main() {
+    let a = A { x: 3 };
+    let b = (&a) as &Foo;
+    assert b.f() == 3;
+}
+