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/*
* 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,
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* 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 $Id$
* @see SWITCH
*/
public class LOOKUPSWITCH extends Select {
/**
* Empty constructor needed for 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
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