---

yaml
---
r: 137661
b: refs/heads/auto
c: 4d2ff43
h: refs/heads/master
i:
  137659: 0f1861c
v: v3

Author: bkoropoff

[refs]

@@ -13,7 +13,7 @@ refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 16b27bbeadff1c61ce36e09180b18aedc7ec27b2
+refs/heads/auto: 4d2ff432e45eedef9d15618b0b9af5378994bc46
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/src/test/compile-fail/issue-17780.rs

@@ -0,0 +1,50 @@
+// Copyright 2014 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(unboxed_closures, overloaded_calls)]
+
+fn set(x: &mut uint) { *x = 5; }
+
+fn main() {
+    // By-ref captures
+    {
+        let mut x = 0u;
+        let _f = |&:| x = 42;
+        //~^ ERROR cannot assign to data in a free
+        // variable from an immutable unboxed closure
+
+        let mut y = 0u;
+        let _g = |&:| set(&mut y);
+        //~^ ERROR cannot borrow data mutably in a free
+        // variable from an immutable unboxed closure
+
+        let mut z = 0u;
+        let _h = |&mut:| { set(&mut z); |&:| z = 42; };
+        //~^ ERROR cannot assign to data in a
+        // free variable from an immutable unboxed closure
+    }
+    // By-value captures
+    {
+        let mut x = 0u;
+        let _f = move |&:| x = 42;
+        //~^ ERROR cannot assign to data in a free
+        // variable from an immutable unboxed closure
+
+        let mut y = 0u;
+        let _g = move |&:| set(&mut y);
+        //~^ ERROR cannot borrow data mutably in a free
+        // variable from an immutable unboxed closure
+
+        let mut z = 0u;
+        let _h = move |&mut:| { set(&mut z); move |&:| z = 42; };
+        //~^ ERROR cannot assign to data in a free
+        // variable from an immutable unboxed closure
+    }
+}