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/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file:
 *
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2011 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"
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package jdk.internal.org.objectweb.asm.tree;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import jdk.internal.org.objectweb.asm.Label;
import jdk.internal.org.objectweb.asm.MethodVisitor;
import jdk.internal.org.objectweb.asm.Opcodes;

A node that represents a LOOKUPSWITCH instruction.
Author:Eric Bruneton
/** * A node that represents a LOOKUPSWITCH instruction. * * @author Eric Bruneton */
public class LookupSwitchInsnNode extends AbstractInsnNode {
Beginning of the default handler block.
/** * Beginning of the default handler block. */
public LabelNode dflt;
The values of the keys. This list is a list of Integer objects.
/** * The values of the keys. This list is a list of {@link Integer} objects. */
public List<Integer> keys;
Beginnings of the handler blocks. This list is a list of LabelNode objects.
/** * Beginnings of the handler blocks. This list is a list of * {@link LabelNode} objects. */
public List<LabelNode> labels;
Constructs a new LookupSwitchInsnNode.
Params:
  • dflt – beginning of the default handler block.
  • keys – the values of the keys.
  • labels – beginnings of the handler blocks. labels[i] is the beginning of the handler block for the keys[i] key.
/** * 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 LabelNode dflt, final int[] keys, final LabelNode[] labels) { super(Opcodes.LOOKUPSWITCH); this.dflt = dflt; this.keys = new ArrayList<Integer>(keys == null ? 0 : keys.length); this.labels = new ArrayList<LabelNode>(labels == null ? 0 : labels.length); if (keys != null) { for (int i = 0; i < keys.length; ++i) { this.keys.add(keys[i]); } } if (labels != null) { this.labels.addAll(Arrays.asList(labels)); } } @Override public int getType() { return LOOKUPSWITCH_INSN; } @Override public void accept(final MethodVisitor mv) { int[] keys = new int[this.keys.size()]; for (int i = 0; i < keys.length; ++i) { keys[i] = this.keys.get(i).intValue(); } Label[] labels = new Label[this.labels.size()]; for (int i = 0; i < labels.length; ++i) { labels[i] = this.labels.get(i).getLabel(); } mv.visitLookupSwitchInsn(dflt.getLabel(), keys, labels); acceptAnnotations(mv); } @Override public AbstractInsnNode clone(final Map<LabelNode, LabelNode> labels) { LookupSwitchInsnNode clone = new LookupSwitchInsnNode(clone(dflt, labels), null, clone(this.labels, labels)); clone.keys.addAll(keys); return clone.cloneAnnotations(this); } }