1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/run-pass/match-reassign.rs b/src/test/run-pass/match-reassign.rs
new file mode 100644
index 00000000000..759296ad46b
--- /dev/null
+++ b/src/test/run-pass/match-reassign.rs
@@ -0,0 +1,30 @@
+// Copyright 2015 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.
+
+// Regression test for #23698: The reassignment checker only cared
+// about the last assigment in a match arm body
+
+// Use an extra function to make sure no extra assignments
+// are introduced by macros in the match statement
+fn check_eq(x: i32, y: i32) {
+    assert_eq!(x, y);
+}
+
+#[allow(unused_assignments)]
+fn main() {
+    let mut x = Box::new(1);
+    match x {
+        y => {
+            x = Box::new(2);
+            let _tmp = 1; // This assignment used to throw off the reassignment checker
+            check_eq(*y, 1);
+        }
+    }
+}