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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program 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 for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.classfile.editor;
import proguard.classfile.attribute.*;
/**
* This class can add line numbers to a given line number table attribute.
* Line numbers to be added must have been filled out beforehand.
*
* @author Eric Lafortune
*/
public class LineNumberTableAttributeEditor
{
private LineNumberTableAttribute targetLineNumberTableAttribute;
/**
* Creates a new LineNumberTableAttributeEditor that will edit line numbers
* in the given line number table attribute.
*/
public LineNumberTableAttributeEditor(LineNumberTableAttribute targetLineNumberTableAttribute)
{
this.targetLineNumberTableAttribute = targetLineNumberTableAttribute;
}
/**
* Adds a given line number to the line number table attribute.
*/
public void addLineNumberInfo(LineNumberInfo lineNumberInfo)
{
int lineNumberTableLength = targetLineNumberTableAttribute.u2lineNumberTableLength;
LineNumberInfo[] lineNumberTable = targetLineNumberTableAttribute.lineNumberTable;
// Make sure there is enough space for the new lineNumberInfo.
if (lineNumberTable.length <= lineNumberTableLength)
{
targetLineNumberTableAttribute.lineNumberTable = new LineNumberInfo[lineNumberTableLength+1];
System.arraycopy(lineNumberTable, 0,
targetLineNumberTableAttribute.lineNumberTable, 0,
lineNumberTableLength);
lineNumberTable = targetLineNumberTableAttribute.lineNumberTable;
}
// Add the lineNumberInfo.
lineNumberTable[targetLineNumberTableAttribute.u2lineNumberTableLength++] = lineNumberInfo;
}
}
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