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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * 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 Rhino code, released
+ * May 6, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+import org.mozilla.javascript.*;
+
+/**
+ * Example of controlling the JavaScript execution engine.
+ *
+ * We evaluate a script and then manipulate the result.
+ *
+ */
+public class Control {
+
+ /**
+ * Main entry point.
+ *
+ * Process arguments as would a normal Java program. Also
+ * create a new Context and associate it with the current thread.
+ * Then set up the execution environment and begin to
+ * execute scripts.
+ */
+ public static void main(String[] args)
+ {
+ Context cx = Context.enter();
+ try {
+ // Set version to JavaScript1.2 so that we get object-literal style
+ // printing instead of "[object Object]"
+ cx.setLanguageVersion(Context.VERSION_1_2);
+
+ // Initialize the standard objects (Object, Function, etc.)
+ // This must be done before scripts can be executed.
+ Scriptable scope = cx.initStandardObjects();
+
+ // Now we can evaluate a script. Let's create a new object
+ // using the object literal notation.
+ Object result = cx.evaluateString(scope, "obj = {a:1, b:['x','y']}",
+ "MySource", 1, null);
+
+ Scriptable obj = (Scriptable) scope.get("obj", scope);
+
+ // Should print "obj == result" (Since the result of an assignment
+ // expression is the value that was assigned)
+ System.out.println("obj " + (obj == result ? "==" : "!=") +
+ " result");
+
+ // Should print "obj.a == 1"
+ System.out.println("obj.a == " + obj.get("a", obj));
+
+ Scriptable b = (Scriptable) obj.get("b", obj);
+
+ // Should print "obj.b[0] == x"
+ System.out.println("obj.b[0] == " + b.get(0, b));
+
+ // Should print "obj.b[1] == y"
+ System.out.println("obj.b[1] == " + b.get(1, b));
+
+ // Should print {a:1, b:["x", "y"]}
+ Function fn = (Function) ScriptableObject.getProperty(obj, "toString");
+ System.out.println(fn.call(cx, scope, obj, new Object[0]));
+ } finally {
+ Context.exit();
+ }
+ }
+
+}
+