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-rw-r--r--tests/ui/traits/region-pointer-simple.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/traits/region-pointer-simple.rs b/tests/ui/traits/region-pointer-simple.rs
new file mode 100644
index 000000000..0456ca931
--- /dev/null
+++ b/tests/ui/traits/region-pointer-simple.rs
@@ -0,0 +1,21 @@
+// run-pass
+trait Foo {
+ fn f(&self) -> isize;
+}
+
+struct A {
+ x: isize
+}
+
+impl Foo for A {
+ fn f(&self) -> isize {
+ println!("Today's number is {}", self.x);
+ return self.x;
+ }
+}
+
+pub fn main() {
+ let a = A { x: 3 };
+ let b = (&a) as &dyn Foo;
+ assert_eq!(b.f(), 3);
+}