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-rw-r--r--src/test/ui/regions/regions-early-bound-used-in-bound.rs28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-early-bound-used-in-bound.rs b/src/test/ui/regions/regions-early-bound-used-in-bound.rs
new file mode 100644
index 000000000..6ccc99e84
--- /dev/null
+++ b/src/test/ui/regions/regions-early-bound-used-in-bound.rs
@@ -0,0 +1,28 @@
+// run-pass
+// Tests that you can use a fn lifetime parameter as part of
+// the value for a type parameter in a bound.
+
+
+trait GetRef<'a, T> {
+ fn get(&self) -> &'a T;
+}
+
+#[derive(Copy, Clone)]
+struct Box<'a, T:'a> {
+ t: &'a T
+}
+
+impl<'a,T:Clone> GetRef<'a,T> for Box<'a,T> {
+ fn get(&self) -> &'a T {
+ self.t
+ }
+}
+
+fn add<'a,G:GetRef<'a, isize>>(g1: G, g2: G) -> isize {
+ *g1.get() + *g2.get()
+}
+
+pub fn main() {
+ let b1 = Box { t: &3 };
+ assert_eq!(add(b1, b1), 6);
+}