    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
    025 * class ref has two bytes.
    026 */
    027public class NarrowClassRefForm extends ClassRefForm {
    028
    029    public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite) {
    030        super(opcode, name, rewrite);
    031    }
    032
    033    public NarrowClassRefForm(final int opcode, final String name, final int[] rewrite, final boolean widened) {
    034        super(opcode, name, rewrite, widened);
    035    }
    036
    037    @Override
    038    public boolean nestedMustStartClassPool() {
    039        return !widened;
    040    }
    041
    042    @Override
    043    protected void setNestedEntries(final ByteCode byteCode, final OperandManager operandManager, final int offset)
    044        throws Pack200Exception {
    045        super.setNestedEntries(byteCode, operandManager, offset);
    046        if (!widened) {
    047            byteCode.setNestedPositions(new int[][] {{0, 1}});
    048        }
    049    }
    050}