---

yaml
---
r: 272853
b: refs/heads/beta
c: d5b6599
h: refs/heads/master
i:
  272851: e483175

Author: bluss

[refs]

@@ -23,7 +23,7 @@ refs/tags/0.9: 36870b185fc5f5486636d4515f0e22677493f225
 refs/tags/0.10: ac33f2b15782272ae348dbd7b14b8257b2148b5a
 refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
-refs/heads/beta: a03222c2b16648c466f836d5eec425fc3c648aa4
+refs/heads/beta: d5b6599ab64b2e44d2fe13eea884e2369ffdaa47
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: e06d2ad9fcd5027bcaac5b08fc9aa39a49d0ecd3
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f

branches/beta/src/test/compile-fail/liveness-unused.rs

@@ -12,6 +12,8 @@
 #![deny(unused_assignments)]
 #![allow(dead_code, non_camel_case_types, trivial_numeric_casts)]
 
+use std::ops::AddAssign;
+
 fn f1(x: isize) {
     //~^ ERROR unused variable: `x`
 }
@@ -100,5 +102,30 @@ fn f5c() {
     }
 }
 
+struct View<'a>(&'a mut [i32]);
+
+impl<'a> AddAssign<i32> for View<'a> {
+    fn add_assign(&mut self, rhs: i32) {
+        for lhs in self.0.iter_mut() {
+            *lhs += rhs;
+        }
+    }
+}
+
+fn f6() {
+    let mut array = [1, 2, 3];
+    let mut v = View(&mut array);
+
+    // ensure an error shows up for x even if lhs of an overloaded add assign
+
+    let x;
+    //~^ ERROR variable `x` is assigned to, but never used
+
+    *({
+        x = 0;  //~ ERROR value assigned to `x` is never read
+        &mut v
+    }) += 1;
+}
+
 fn main() {
 }