JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.tools.classfile;

import java.io.IOException;

/**
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */
public class CharacterRangeTable_attribute  extends Attribute {
    public static final int CRT_STATEMENT       = 0x0001;
    public static final int CRT_BLOCK           = 0x0002;
    public static final int CRT_ASSIGNMENT      = 0x0004;
    public static final int CRT_FLOW_CONTROLLER = 0x0008;
    public static final int CRT_FLOW_TARGET     = 0x0010;
    public static final int CRT_INVOKE          = 0x0020;
    public static final int CRT_CREATE          = 0x0040;
    public static final int CRT_BRANCH_TRUE     = 0x0080;
    public static final int CRT_BRANCH_FALSE    = 0x0100;

    CharacterRangeTable_attribute(ClassReader cr, int name_index, int length) throws IOException {
        super(name_index, length);
        int character_range_table_length = cr.readUnsignedShort();
        character_range_table = new Entry[character_range_table_length];
        for (int i = 0; i < character_range_table_length; i++)
            character_range_table[i] = new Entry(cr);
    }

    public CharacterRangeTable_attribute(ConstantPool constant_pool, Entry[] character_range_table)
            throws ConstantPoolException {
        this(constant_pool.getUTF8Index(Attribute.CharacterRangeTable), character_range_table);
    }

    public CharacterRangeTable_attribute(int name_index, Entry[] character_range_table) {
        super(name_index, 2 + character_range_table.length * Entry.length());
        this.character_range_table = character_range_table;
    }

    public <R, D> R accept(Visitor<R, D> visitor, D data) {
        return visitor.visitCharacterRangeTable(this, data);
    }

    public final Entry[] character_range_table;

    public static class Entry {
        Entry(ClassReader cr) throws IOException {
            start_pc = cr.readUnsignedShort();
            end_pc = cr.readUnsignedShort();
            character_range_start = cr.readInt();

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