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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"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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package jdk.internal.org.objectweb.asm;

An edge in the control flow graph of a method body. See Label.
Author:Eric Bruneton
/** * An edge in the control flow graph of a method body. See {@link Label Label}. * * @author Eric Bruneton */
class Edge {
Denotes a normal control flow graph edge.
/** * Denotes a normal control flow graph edge. */
static final int NORMAL = 0;
Denotes a control flow graph edge corresponding to an exception handler. More precisely any Edge whose info is strictly positive corresponds to an exception handler. The actual value of info is the index, in the ClassWriter type table, of the exception that is catched.
/** * Denotes a control flow graph edge corresponding to an exception handler. * More precisely any {@link Edge} whose {@link #info} is strictly positive * corresponds to an exception handler. The actual value of {@link #info} is * the index, in the {@link ClassWriter} type table, of the exception that * is catched. */
static final int EXCEPTION = 0x7FFFFFFF;
Information about this control flow graph edge. If ClassWriter.COMPUTE_MAXS is used this field is the (relative) stack size in the basic block from which this edge originates. This size is equal to the stack size at the "jump" instruction to which this edge corresponds, relatively to the stack size at the beginning of the originating basic block. If ClassWriter.COMPUTE_FRAMES is used, this field is the kind of this control flow graph edge (i.e. NORMAL or EXCEPTION).
/** * Information about this control flow graph edge. If * {@link ClassWriter#COMPUTE_MAXS} is used this field is the (relative) * stack size in the basic block from which this edge originates. This size * is equal to the stack size at the "jump" instruction to which this edge * corresponds, relatively to the stack size at the beginning of the * originating basic block. If {@link ClassWriter#COMPUTE_FRAMES} is used, * this field is the kind of this control flow graph edge (i.e. NORMAL or * EXCEPTION). */
int info;
The successor block of the basic block from which this edge originates.
/** * The successor block of the basic block from which this edge originates. */
Label successor;
The next edge in the list of successors of the originating basic block. See successors.
/** * The next edge in the list of successors of the originating basic block. * See {@link Label#successors successors}. */
Edge next; }