1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/nll/generator-distinct-lifetime.rs b/src/test/ui/nll/generator-distinct-lifetime.rs
new file mode 100644
index 000000000..90fe6b569
--- /dev/null
+++ b/src/test/ui/nll/generator-distinct-lifetime.rs
@@ -0,0 +1,25 @@
+#![feature(generators)]
+
+// Test for issue #47189. Here, both `s` and `t` are live for the
+// generator's lifetime, but within the generator they have distinct
+// lifetimes. We accept this code -- even though the borrow extends
+// over a yield -- because the data that is borrowed (`*x`) is not
+// stored on the stack.
+
+// check-pass
+
+fn foo(x: &mut u32) {
+    move || {
+        let s = &mut *x;
+        yield;
+        *s += 1;
+
+        let t = &mut *x;
+        yield;
+        *t += 1;
+    };
+}
+
+fn main() {
+    foo(&mut 0);
+}