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Diffstat (limited to 'src/test/ui/regions/regions-early-bound-used-in-bound-method.rs')
-rw-r--r--src/test/ui/regions/regions-early-bound-used-in-bound-method.rs30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-early-bound-used-in-bound-method.rs b/src/test/ui/regions/regions-early-bound-used-in-bound-method.rs
new file mode 100644
index 000000000..a778dae1e
--- /dev/null
+++ b/src/test/ui/regions/regions-early-bound-used-in-bound-method.rs
@@ -0,0 +1,30 @@
+// 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> {
+ fn get(&self) -> &'a isize;
+}
+
+#[derive(Copy, Clone)]
+struct Box<'a> {
+ t: &'a isize
+}
+
+impl<'a> GetRef<'a> for Box<'a> {
+ fn get(&self) -> &'a isize {
+ self.t
+ }
+}
+
+impl<'a> Box<'a> {
+ fn add<'b,G:GetRef<'b>>(&self, g2: G) -> isize {
+ *self.t + *g2.get()
+ }
+}
+
+pub fn main() {
+ let b1 = Box { t: &3 };
+ assert_eq!(b1.add(b1), 6);
+}