2 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/generator/issue-48048.rs b/src/test/ui/generator/issue-48048.rs
new file mode 100644
index 00000000000..89739bd591c
--- /dev/null
+++ b/src/test/ui/generator/issue-48048.rs
@@ -0,0 +1,23 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(generators)]
+
+fn main() {
+    let x = (|_| {},);
+
+    || {
+        let x = x;
+
+        x.0({ //~ ERROR borrow may still be in use when generator yields
+            yield;
+        });
+    };
+}
diff --git a/src/test/ui/generator/issue-48048.stderr b/src/test/ui/generator/issue-48048.stderr
new file mode 100644
index 00000000000..fd1667128ab
--- /dev/null
+++ b/src/test/ui/generator/issue-48048.stderr
@@ -0,0 +1,10 @@
+error[E0626]: borrow may still be in use when generator yields
+  --> $DIR/issue-48048.rs:19:9
+   |
+19 |         x.0({ //~ ERROR borrow may still be in use when generator yields
+   |         ^^^
+20 |             yield;
+   |             ----- possible yield occurs here
+
+error: aborting due to previous error
+