JavaScript Test Library - regression test for bug 348986, by Igor Bukanov

js/tests/js1_5/Function/regress-348986.js

@@ -0,0 +1,95 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is JavaScript Engine testing utilities.
+ *
+ * The Initial Developer of the Original Code is
+ * Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2006
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s): Igor Bukanov
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+//-----------------------------------------------------------------------------
+var bug = 348986;
+var summary = 'Recursion check of nested functions';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber (bug);
+  printStatus (summary);
+  
+// Number of nested function f(){function f(){function f(){...}}}
+  var N = 700;
+  var prefix="function f(){";
+  var suffix="}";
+  var source = Array(N+1).join(prefix) + Array(N+1).join(suffix);
+  var F = Function(source);
+
+// We successfully parsed the source, now call F.toSource() from a deeply
+// recursive code when already consumed C stack plus the stack to perform
+// F.toSource() would exceed the stack required to parse F.
+
+  var testObj = { 	
+	recursionLevel: N*0.7,
+	get propertyWithGetter() {
+      if (this.recursionLevel <= 0)
+        return underDeepRecursion();
+      this.recursionLevel--;
+      return this.propertyWithGetter;
+    } 
+  };
+
+  function underDeepRecursion()
+  {
+    return F.toSource();
+  }
+
+  var success = false;
+  try {
+    testObj.propertyWithGetter;
+    success = true;
+  } catch (e) {
+    success = (e instanceof InternalError);
+  }
+
+  writeLineToLog("success="+success);
+
+  expect = true;
+  actual = success;
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}