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 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF 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

 *

 *      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

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package com.sun.org.apache.bcel.internal.generic;

import java.io.DataOutputStream;

import java.io.IOException;

import com.sun.org.apache.bcel.internal.util.ByteSequence;

/**

 * LOOKUPSWITCH - Switch with unordered set of values

 *

 * @version $Id: LOOKUPSWITCH.java 1747278 2016-06-07 17:28:43Z britter $

 * @see SWITCH

 */

public class LOOKUPSWITCH extends Select {

    /**

     * Empty constructor needed for the Class.newInstance() statement in

     * Instruction.readInstruction(). Not to be used otherwise.

     */

    LOOKUPSWITCH() {

    }

    public LOOKUPSWITCH(final int[] match, final InstructionHandle[] targets,

            final InstructionHandle defaultTarget) {

        super(com.sun.org.apache.bcel.internal.Const.LOOKUPSWITCH, match, targets, defaultTarget);

        /* alignment remainder assumed 0 here, until dump time. */

        final short _length = (short) (9 + getMatch_length() * 8);

        super.setLength(_length);

        setFixed_length(_length);

    }

    /**

     * Dump instruction as byte code to stream out.

     * @param out Output stream

     */

    @Override

    public void dump( final DataOutputStream out ) throws IOException {

        super.dump(out);

        final int _match_length = getMatch_length();

        out.writeInt(_match_length); // npairs

        for (int i = 0; i < _match_length; i++) {

            out.writeInt(super.getMatch(i)); // match-offset pairs

            out.writeInt(setIndices(i, getTargetOffset(super.getTarget(i))));

        }

    }

    /**

     * Read needed data (e.g. index) from file.

     */

    @Override

    protected void initFromFile( final ByteSequence bytes, final boolean wide ) throws IOException {

        super.initFromFile(bytes, wide); // reads padding

        final int _match_length = bytes.readInt();

        setMatch_length(_match_length);

        final short _fixed_length = (short) (9 + _match_length * 8);

        setFixed_length(_fixed_length);

        final short _length = (short) (_match_length + super.getPadding());

        super.setLength(_length);

        super.setMatches(new int[_match_length]);

        super.setIndices(new int[_match_length]);

        super.setTargets(new InstructionHandle[_match_length]);

        for (int i = 0; i < _match_length; i++) {

            super.setMatch(i, bytes.readInt());

            super.setIndices(i, bytes.readInt());

        }

    }

    /**

     * Call corresponding visitor method(s). The order is:

     * Call visitor methods of implemented interfaces first, then

     * call methods according to the class hierarchy in descending order,

     * i.e., the most specific visitXXX() call comes last.

     *

     * @param v Visitor object

     */

    @Override

    public void accept( final Visitor v ) {

        v.visitVariableLengthInstruction(this);

        v.visitStackConsumer(this);

        v.visitBranchInstruction(this);

        v.visitSelect(this);

        v.visitLOOKUPSWITCH(this);

    }

}