1 files changed, 68 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/extensions/regress-341956-01.js b/js/src/tests/js1_5/extensions/regress-341956-01.js
new file mode 100644
index 000000000..be5865384
--- /dev/null
+++ b/js/src/tests/js1_5/extensions/regress-341956-01.js
@@ -0,0 +1,68 @@
+/* -*- tab-width: 2; 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 = 341956;
+var summary = 'GC Hazards in jsarray.c - unshift';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var N = 0xFFFFFFFF;
+
+  var a = [];
+  a[N - 1] = 1;
+  a.__defineGetter__(N - 1, function() {
+		       var tmp = [];
+		       tmp[N - 2] = 0;
+		       if (typeof gc == 'function')
+			 gc();
+		       for (var i = 0; i != 50000; ++i) {
+			 var tmp = 1 / 3;
+			 tmp /= 10;
+		       }
+		       for (var i = 0; i != 1000; ++i) {
+			 // Make string with 11 characters that would take
+			 // (11 + 1) * 2 bytes or sizeof(JSAtom) so eventually
+			 // malloc will ovewrite just freed atoms.
+			 var tmp2 = Array(12).join(' ');
+		       }
+		       return 10;
+		     });
+
+
+// The following always-throw getter is to stop unshift from doing
+// 2^32 iterations.
+  var toStop = "stringToStop";
+  a[N - 3] = 0;
+  a.__defineGetter__(N - 3, function() { throw toStop; });
+
+  var good = false;
+
+  try {
+    a.unshift(1);
+  } catch (e) {
+    if (e === toStop)
+      good = true;
+  }
+
+  expect = true;
+  actual = good;
+
+  reportCompare(expect, actual, summary);
+
+  print('Done');
+
+  exitFunc ('test');
+}