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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 local variables to a given local variable table attribute.
* Local variables to be added must have been filled out beforehand.
*
* @author Eric Lafortune
*/
public class LocalVariableTableAttributeEditor
{
private LocalVariableTableAttribute targetLocalVariableTableAttribute;
/**
* Creates a new LocalVariableTableAttributeEditor that will edit line numbers
* in the given line number table attribute.
*/
public LocalVariableTableAttributeEditor(LocalVariableTableAttribute targetLocalVariableTableAttribute)
{
this.targetLocalVariableTableAttribute = targetLocalVariableTableAttribute;
}
/**
* Adds a given line number to the line number table attribute.
*/
public void addLocalVariableInfo(LocalVariableInfo localVariableInfo)
{
int localVariableTableLength = targetLocalVariableTableAttribute.u2localVariableTableLength;
LocalVariableInfo[] localVariableTable = targetLocalVariableTableAttribute.localVariableTable;
// Make sure there is enough space for the new localVariableInfo.
if (localVariableTable.length <= localVariableTableLength)
{
targetLocalVariableTableAttribute.localVariableTable = new LocalVariableInfo[localVariableTableLength+1];
System.arraycopy(localVariableTable, 0,
targetLocalVariableTableAttribute.localVariableTable, 0,
localVariableTableLength);
localVariableTable = targetLocalVariableTableAttribute.localVariableTable;
}
// Add the localVariableInfo.
localVariableTable[targetLocalVariableTableAttribute.u2localVariableTableLength++] = localVariableInfo;
}
}
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