1 files changed, 68 insertions, 0 deletions
diff --git a/src/test/compile-fail/borrowck/borrowck-overloaded-index-ref-index.rs b/src/test/compile-fail/borrowck/borrowck-overloaded-index-ref-index.rs
new file mode 100644
index 00000000000..4c50caf4976
--- /dev/null
+++ b/src/test/compile-fail/borrowck/borrowck-overloaded-index-ref-index.rs
@@ -0,0 +1,68 @@
+// 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.
+
+use std::ops::{Index, IndexMut};
+
+struct Foo {
+    x: isize,
+    y: isize,
+}
+
+impl<'a> Index<&'a String> for Foo {
+    type Output = isize;
+
+    fn index(&self, z: &String) -> &isize {
+        if *z == "x" {
+            &self.x
+        } else {
+            &self.y
+        }
+    }
+}
+
+impl<'a> IndexMut<&'a String> for Foo {
+    fn index_mut(&mut self, z: &String) -> &mut isize {
+        if *z == "x" {
+            &mut self.x
+        } else {
+            &mut self.y
+        }
+    }
+}
+
+struct Bar {
+    x: isize,
+}
+
+impl Index<isize> for Bar {
+    type Output = isize;
+
+    fn index<'a>(&'a self, z: isize) -> &'a isize {
+        &self.x
+    }
+}
+
+fn main() {
+    let mut f = Foo {
+        x: 1,
+        y: 2,
+    };
+    let mut s = "hello".to_string();
+    let rs = &mut s;
+    println!("{}", f[&s]);
+    //~^ ERROR cannot borrow `s` as immutable because it is also borrowed as mutable
+    f[&s] = 10;
+    //~^ ERROR cannot borrow `s` as immutable because it is also borrowed as mutable
+    let s = Bar {
+        x: 1,
+    };
+    s[2] = 20;
+    //~^ ERROR cannot assign to immutable indexed content
+}