    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.pack200.Pack200Exception;
    020import org.apache.commons.compress.harmony.unpack200.bytecode.ByteCode;
    021import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager;
    022
    023/**
    024 * This class is used for representations of cldc and cldc_w. In these cases, a narrow class ref has one byte and a wide class ref has two bytes.
    025 */
    026public class NarrowClassRefForm extends ClassRefForm {
    027
    028    public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite) {
    029        super(opcode, name, rewrite);
    030    }
    031
    032    public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite, final boolean widened) {
    033        super(opcode, name, rewrite, widened);
    034    }
    035
    036    @Override
    037    public boolean nestedMustStartClassPool() {
    038        return !widened;
    039    }
    040
    041    @Override
    042    protected void setNestedEntries(final ByteCode byteCode, final OperandManager operandManager, final int offset) throws Pack200Exception {
    043        super.setNestedEntries(byteCode, operandManager, offset);
    044        if (!widened) {
    045            byteCode.setNestedPositions(new int[][] { { 0, 1 } });
    046        }
    047    }
    048}