JumpMarker.java

/*
 * Copyright 2016, Stuart Douglas, and individual contributors as indicated
 * by the @authors tag.
 *
 * Licensed 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
 *
 *     http://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 org.fakereplace.util;

import javassist.bytecode.Bytecode;

/**
 * Interface that represents a conditional jump or goto in bytecode.
 * <p>
 * When the mark method is called the jump site is updated to point to the end
 * of the bytecode stream.
 *
 * @author Stuart Douglas
 * @see JumpUtils
 */
public interface JumpMarker {
    /**
     * Changes the jump instructions target to the next bytecode to be added to
     * the {@link Bytecode}
     */
    void mark();
}