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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
See Also:
SWITCH
Version:
$Id: LOOKUPSWITCH.java 1747278 2016-06-07 17:28:43Z britter $/**
 * 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.
/**
     * 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.
Params:
out – Output stream/**
     * 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.
/**
     * 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.
Params:
v – Visitor object/**
     * 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);
    }
}