TestObject.java

/*******************************************************************************

    An implementation of the Java Debug Wire Protocol (JDWP) for JOP
    Copyright (C) 2007 Paulo Abadie Guedes

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
    
*******************************************************************************/

package debug;

/**
 * TestObject.java
 * 
 * A simple object to test direct field access and other operations.
 * 
 * Note:
 * to get the details of the compiled class, it's possible to use javap
 * like this:
 * 
 * javap  -c -l -s -private TestObject > TestObject.txt
 * 
 * @author Paulo Guedes
 * 21/05/2007 - 16:19:23
 *
 */
public class TestObject
{
  public static int staticValue = 0;
  
  private int value0;
  public int value1;
  public int value2;
  public int value3;
  
  public long test;
  
  private int intArray[];
  
  public TestObject()
  {
    value0 = 0;
    value1 = 1;
    value2 = 2;
    value3 = 3;
    
    test = 4;
    
    intArray = new int[8];
    
    // just put some values. This will help to test code for array access.
    for(value0 = 0; value0 < intArray.length; value0++)
    {
      intArray[value0] = 2 * value0;
    }
    value0 = 0;
  }

  public int getValue0()
  {
    return value0;
  }

  public void setValue0(int x)
  {
    this.value0 = x;
  }
  
  /**
   * Method to calculate the identity function.
   * 
   *  Signature: (I)I
   *  Code:
   *   0:   iload_0
   *   1:   ireturn
   *   
   *  LineNumberTable: 
   *   line 87: 0
   *  
   * @param x
   * @return
   */
  public static int identity(int x)
  {
    return x;
  }
  
  public static int increment(int x)
  {
    x++;
    
    return x;
  }
  
  public static int testInc()
  {
    int x;
    
    x = 0;
    
    x++;
    x++;
    x++;
    x++;
    x++;
    x++;
    
    return x;
  }
  
  public static int getConstant()
  {
    int x;
    
    x = 0;
    
    x++;
    x++;
    x++;
    
    x = 16;
    
    return x;
  }
  
  /**
   * A small test for the array element.
   * 
   * @param index
   * @return
   */
  public int getArrayElement(int index)
  {
	return intArray[index];
  }
}