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/***

 * ASM: a very small and fast Java bytecode manipulation framework

 * Copyright (c) 2000-2005 INRIA, France Telecom

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the copyright holders nor the names of its

 *    contributors may be used to endorse or promote products derived from

 *    this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

 * THE POSSIBILITY OF SUCH DAMAGE.

 */

package org.objectweb.asm.tree;

import org.objectweb.asm.Label;

import org.objectweb.asm.Opcodes;

import org.objectweb.asm.MethodVisitor;

import java.util.List;

import java.util.ArrayList;

import java.util.Arrays;

/**

 * A node that represents a LOOKUPSWITCH instruction.

 *

 * @author Eric Bruneton

 */

public class LookupSwitchInsnNode extends AbstractInsnNode {

    /**

     * Beginning of the default handler block.

     */

    public Label dflt;

    /**

     * The values of the keys. This list is a list of {@link Integer} objects.

     */

    public List keys;

    /**

     * Beginnings of the handler blocks. This list is a list of {@link Label}

     * objects.

     */

    public List labels;

    /**

     * Constructs a new {@link LookupSwitchInsnNode}.

     *

     * @param dflt beginning of the default handler block.

     * @param keys the values of the keys.

     * @param labels beginnings of the handler blocks. <tt>labels[i]</tt> is

     *        the beginning of the handler block for the <tt>keys[i]</tt> key.

     */

    public LookupSwitchInsnNode(

        final Label dflt,

        final int[] keys,

        final Label[] labels)

    {

        super(Opcodes.LOOKUPSWITCH);

        this.dflt = dflt;

        this.keys = new ArrayList(keys == null ? 0 : keys.length);

        this.labels = new ArrayList(labels == null ? 0 : labels.length);

        if (keys != null) {

            for (int i = 0; i < keys.length; ++i) {

                this.keys.add(new Integer(keys[i]));

            }

        }

        if (labels != null) {

            this.labels.addAll(Arrays.asList(labels));

        }

    }

    public void accept(final MethodVisitor mv) {

        int[] keys = new int[this.keys.size()];

        for (int i = 0; i < keys.length; ++i) {

            keys[i] = ((Integer) this.keys.get(i)).intValue();

        }

        Label[] labels = new Label[this.labels.size()];

        this.labels.toArray(labels);

        mv.visitLookupSwitchInsn(dflt, keys, labels);

    }

    public int getType() {

        return LOOKUPSWITCH_INSN;

    }

}