    001/*
    002 *  Licensed to the Apache Software Foundation (ASF) under one or more
    003 *  contributor license agreements.  See the NOTICE file distributed with
    004 *  this work for additional information regarding copyright ownership.
    005 *  The ASF licenses this file to You under the Apache License, Version 2.0
    006 *  (the "License"); you may not use this file except in compliance with
    007 *  the License.  You may obtain a copy of the License at
    008 *
    009 *     http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 *  Unless required by applicable law or agreed to in writing, software
    012 *  distributed under the License is distributed on an "AS IS" BASIS,
    013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 *  See the License for the specific language governing permissions and
    015 *  limitations under the License.
    016 */
    017package org.apache.commons.compress.harmony.unpack200.bytecode.forms;
    018
    019import org.apache.commons.compress.harmony.unpack200.SegmentConstantPool;
    020import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager;
    021
    022/**
    023 * This class implements references to fields defined in the current class, which is set by this class in the OperandManager. Pack200 allows the current class
    024 * to be inferred from context; this class tracks previous field reference classes to allow this.
    025 */
    026public class ThisFieldRefForm extends ClassSpecificReferenceForm {
    027
    028    public ThisFieldRefForm(final int opcode, final String name, final int[] rewrite) {
    029        super(opcode, name, rewrite);
    030    }
    031
    032    @Override
    033    protected String context(final OperandManager operandManager) {
    034        return operandManager.getCurrentClass();
    035    }
    036
    037    @Override
    038    protected int getOffset(final OperandManager operandManager) {
    039        return operandManager.nextThisFieldRef();
    040    }
    041
    042    @Override
    043    protected int getPoolID() {
    044        return SegmentConstantPool.CP_FIELD;
    045    }
    046}