jjg@46: /*
jjg@46:  * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
jjg@46:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46:  *
jjg@46:  * This code is free software; you can redistribute it and/or modify it
jjg@46:  * under the terms of the GNU General Public License version 2 only, as
jjg@46:  * published by the Free Software Foundation.  Sun designates this
jjg@46:  * particular file as subject to the "Classpath" exception as provided
jjg@46:  * by Sun in the LICENSE file that accompanied this code.
jjg@46:  *
jjg@46:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@46:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@46:  * accompanied this code).
jjg@46:  *
jjg@46:  * You should have received a copy of the GNU General Public License version
jjg@46:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46:  *
jjg@46:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@46:  * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@46:  * have any questions.
jjg@46:  */
jjg@46: 
jjg@46: package com.sun.tools.classfile;
jjg@46: 
jjg@46: import java.io.IOException;
jjg@46: 
jjg@46: /**
jjg@46:  * See JVMS3, section 4.8.12.
jjg@46:  *
jjg@46:  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
jjg@46:  *  you write code that depends on this, you do so at your own risk.
jjg@46:  *  This code and its internal interfaces are subject to change or
jjg@46:  *  deletion without notice.</b>
jjg@46:  */
jjg@46: public class LineNumberTable_attribute extends Attribute {
jjg@46:     LineNumberTable_attribute(ClassReader cr, int name_index, int length) throws IOException {
jjg@46:         super(name_index, length);
jjg@46:         line_number_table_length = cr.readUnsignedShort();
jjg@46:         line_number_table = new Entry[line_number_table_length];
jjg@46:         for (int i = 0; i < line_number_table_length; i++)
jjg@46:             line_number_table[i] = new Entry(cr);
jjg@46:     }
jjg@46: 
jjg@46:     public LineNumberTable_attribute(ConstantPool constant_pool, Entry[] line_number_table)
jjg@46:             throws ConstantPoolException {
jjg@46:         this(constant_pool.getUTF8Index(Attribute.LineNumberTable), line_number_table);
jjg@46:     }
jjg@46: 
jjg@46:     public LineNumberTable_attribute(int name_index, Entry[] line_number_table) {
jjg@46:         super(name_index, line_number_table.length * Entry.length());
jjg@46:         this.line_number_table_length = line_number_table.length;
jjg@46:         this.line_number_table = line_number_table;
jjg@46:     }
jjg@46: 
jjg@46:     public <R, D> R accept(Visitor<R, D> visitor, D data) {
jjg@46:         return visitor.visitLineNumberTable(this, data);
jjg@46:     }
jjg@46: 
jjg@46:     public final int line_number_table_length;
jjg@46:     public final Entry[] line_number_table;
jjg@46: 
jjg@46:     public static class Entry {
jjg@46:         Entry(ClassReader cr) throws IOException {
jjg@46:             start_pc = cr.readUnsignedShort();
jjg@46:             line_number = cr.readUnsignedShort();
jjg@46:         }
jjg@46: 
jjg@46:         public static int length() {
jjg@46:             return 4;
jjg@46:         }
jjg@46: 
jjg@46:         public final int start_pc;
jjg@46:         public final int line_number;
jjg@46:     }
jjg@46: }