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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, 1999.
 *
 * 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):
 *   Norris Boyd
 *
 * 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 ***** */

// API class

package org.mozilla.javascript;

/**
 * All compiled scripts implement this interface.
 * <p>
 * This class encapsulates script execution relative to an
 * object scope.
 * @since 1.3
 * @author Norris Boyd
 */

public interface Script {

    /**
     * Execute the script.
     * <p>
     * The script is executed in a particular runtime Context, which
     * must be associated with the current thread.
     * The script is executed relative to a scope--definitions and
     * uses of global top-level variables and functions will access
     * properties of the scope object. For compliant ECMA
     * programs, the scope must be an object that has been initialized
     * as a global object using <code>Context.initStandardObjects</code>.
     * <p>
     *
     * @param cx the Context associated with the current thread
     * @param scope the scope to execute relative to
     * @return the result of executing the script
     * @see org.mozilla.javascript.Context#initStandardObjects()
     */
    public Object exec(Context cx, Scriptable scope);

}