Properly bind nested pattern bindings when there's more than one

Fixes #15488.

1 files changed, 38 insertions, 0 deletions

diff --git a/src/test/run-pass/match-pattern-bindings.rs b/src/test/run-pass/match-pattern-bindings.rs
new file mode 100644
index 00000000000..61e905e5b17
--- /dev/null
+++ b/src/test/run-pass/match-pattern-bindings.rs
@@ -0,0 +1,38 @@
+// 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.
+
+fn main() {
+    let value = Some(1i);
+    assert_eq!(match value {
+        ref a @ Some(_) => a,
+        ref b @ None => b
+    }, &Some(1i));
+    assert_eq!(match value {
+        ref a @ ref _c @ Some(_) => a,
+        ref b @ None => b
+    }, &Some(1i));
+    assert_eq!(match value {
+        _a @ ref c @ Some(_) => c,
+        ref b @ None => b
+    }, &Some(1i));
+    assert_eq!(match "foobarbaz" {
+        _a @ b @ _ => b
+    }, "foobarbaz");
+
+    let a @ b @ c = "foobarbaz";
+    assert_eq!(a, "foobarbaz");
+    assert_eq!(b, "foobarbaz");
+    assert_eq!(c, "foobarbaz");
+    let value = Some(true);
+    let ref a @ b @ ref c = value;
+    assert_eq!(a, &Some(true));
+    assert_eq!(b, Some(true));
+    assert_eq!(c, &Some(true));
+}