VarHandleFactory.java — netty Source File

Source Code

/*
 * Copyright 2025 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package io.netty.util.internal;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.invoke.VarHandle;
import java.nio.ByteOrder;

final class VarHandleFactory {

    private VarHandleFactory() {
    }

    private static final MethodHandle FIND_VAR_HANDLE;
    private static final MethodHandle PRIVATE_LOOKUP_IN;
    private static final VarHandle LONG_LE_ARRAY_VIEW;
    private static final VarHandle LONG_BE_ARRAY_VIEW;
    private static final VarHandle INT_LE_ARRAY_VIEW;
    private static final VarHandle INT_BE_ARRAY_VIEW;
    private static final VarHandle SHORT_LE_ARRAY_VIEW;
    private static final VarHandle SHORT_BE_ARRAY_VIEW;
    private static final VarHandle LONG_LE_BYTE_BUFFER_VIEW;
    private static final VarHandle LONG_BE_BYTE_BUFFER_VIEW;
    private static final VarHandle INT_LE_BYTE_BUFFER_VIEW;
    private static final VarHandle INT_BE_BYTE_BUFFER_VIEW;
    private static final VarHandle SHORT_LE_BYTE_BUFFER_VIEW;
    private static final VarHandle SHORT_BE_BYTE_BUFFER_VIEW;
    private static final Throwable UNAVAILABILITY_CAUSE;

    static {
        MethodHandle findVarHandle = null;
        MethodHandle privateLookupIn = null;
        VarHandle longLeArrayViewHandle = null;
        VarHandle longBeArrayViewHandle = null;
        VarHandle intLeArrayViewHandle = null;
        VarHandle intBeArrayViewHandle = null;
        VarHandle shortLeArrayViewHandle = null;
        VarHandle shortBeArrayViewHandle = null;
        VarHandle longLeByteBufferViewHandle = null;
        VarHandle longBeByteBufferViewHandle = null;
        VarHandle intLeByteBufferViewHandle = null;
        VarHandle intBeByteBufferViewHandle = null;
        VarHandle shortLeByteBufferViewHandle = null;
        VarHandle shortBeByteBufferViewHandle = null;
// ... (140 more lines)