1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/tests/non262/regress/regress-477758.js b/js/src/tests/non262/regress/regress-477758.js
new file mode 100644
index 0000000000..24b559d5d9
--- /dev/null
+++ b/js/src/tests/non262/regress/regress-477758.js
@@ -0,0 +1,46 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 477758;
+var summary = 'TM: RegExp source';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+
+  function map(array, func) {
+    var result = [];
+    for(var i=0;i<array.length;i++) {
+      result.push(func(array[i]));
+    }
+    return result;
+  }
+
+  function run() {
+    var patterns = [/foo/, /bar/];
+    function getSource(r) { return r.source; }
+    var patternStrings = map(patterns, getSource);
+    print(actual += [patterns[0].source, patternStrings[0]] + '');
+  }
+
+  expect = 'foo,foo';
+
+  for (var i = 0; i < 4; i++)
+  {
+    actual = '';
+    run();
+    reportCompare(expect, actual, summary + ': ' + i);
+  }
+}