/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://opensource.org/licenses/GPL-2.0.

 */

package org.apidesign.vm4brwsr.api;

import java.io.IOException;

import org.apidesign.bck2brwsr.core.JavaScriptBody;

/** Utility methods to talk to the Bck2Brwsr virtual machine.

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 * @since 0.9

 */

public final class VM {

    private VM() {

    }

    /** Takes an existing class and replaces its existing byte code 

     * with new one.

     * 

     * @param clazz existing class to reload

     * @param byteCode new bytecode

     * @throws IOException an exception is something goes wrong

     */

    public static void reload(Class<?> clazz, byte[] byteCode) throws IOException {

        reloadImpl(clazz.getName(), byteCode);

    }

    @JavaScriptBody(args = { "name", "byteCode" }, body = 

        "var r = vm._reload;"

      + "if (!r) r = exports._reload;"

      + "r(name, byteCode);"

    )

    private static void reloadImpl(String name, byte[] byteCode) throws IOException {

        throw new IOException();

    }

}