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      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2014 Eric Lafortune (eric (at) graphics.cornell.edu)
      6  *
      7  * This program is free software; you can redistribute it and/or modify it
      8  * under the terms of the GNU General Public License as published by the Free
      9  * Software Foundation; either version 2 of the License, or (at your option)
     10  * any later version.
     11  *
     12  * This program is distributed in the hope that it will be useful, but WITHOUT
     13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
     15  * more details.
     16  *
     17  * You should have received a copy of the GNU General Public License along
     18  * with this program; if not, write to the Free Software Foundation, Inc.,
     19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
     20  */
     21 package proguard.classfile.editor;
     22 
     23 import proguard.classfile.attribute.*;
     24 import proguard.util.ArrayUtil;
     25 
     26 /**
     27  * This class can add local variables to a given local variable table attribute.
     28  * Local variables to be added must have been filled out beforehand.
     29  *
     30  * @author Eric Lafortune
     31  */
     32 public class LocalVariableTableAttributeEditor
     33 {
     34     private final LocalVariableTableAttribute targetLocalVariableTableAttribute;
     35 
     36 
     37     /**
     38      * Creates a new LocalVariableTableAttributeEditor that will edit local
     39      * variables in the given local variable table attribute.
     40      */
     41     public LocalVariableTableAttributeEditor(LocalVariableTableAttribute targetLocalVariableTableAttribute)
     42     {
     43         this.targetLocalVariableTableAttribute = targetLocalVariableTableAttribute;
     44     }
     45 
     46 
     47     /**
     48      * Adds a given line number to the line number table attribute.
     49      */
     50     public void addLocalVariableInfo(LocalVariableInfo localVariableInfo)
     51     {
     52         targetLocalVariableTableAttribute.localVariableTable =
     53             (LocalVariableInfo[])ArrayUtil.add(targetLocalVariableTableAttribute.localVariableTable,
     54                                                targetLocalVariableTableAttribute.u2localVariableTableLength++,
     55                                                localVariableInfo);
     56     }
     57 }