/*

 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

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

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package java.lang.invoke;

import java.nio.Buffer;

import java.nio.ByteBuffer;

import static java.lang.invoke.MethodHandleStatics.UNSAFE;

/**

 * The base class for generated byte array and byte buffer view

 * implementations

 */

abstract class VarHandleByteArrayBase {

    // Buffer.address

    static final long BUFFER_ADDRESS;

    // Buffer.limit

    static final long BUFFER_LIMIT;

    // ByteBuffer.hb

    static final long BYTE_BUFFER_HB;

    // ByteBuffer.isReadOnly

    static final long BYTE_BUFFER_IS_READ_ONLY;

    static {

        try {

            BUFFER_ADDRESS = UNSAFE.objectFieldOffset(

                    Buffer.class.getDeclaredField("address"));

            BUFFER_LIMIT = UNSAFE.objectFieldOffset(

                    Buffer.class.getDeclaredField("limit"));

            BYTE_BUFFER_HB = UNSAFE.objectFieldOffset(

                    ByteBuffer.class.getDeclaredField("hb"));

            BYTE_BUFFER_IS_READ_ONLY = UNSAFE.objectFieldOffset(

                    ByteBuffer.class.getDeclaredField("isReadOnly"));

        }

        catch (ReflectiveOperationException e) {

            throw new Error(e);

        }

    }

    static final boolean BE = UNSAFE.isBigEndian();

    static IllegalStateException newIllegalStateExceptionForMisalignedAccess(int index) {

        return new IllegalStateException("Misaligned access at index: " + index);

    }

}