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package ilog.language.design.base;

/**
 * @version     Last modified on Tue Dec 10 07:05:47 2002 by hak
 * @author      <a href="mailto:hak@ilog.fr">Hassan A&iuml;t-Kaci</a>
 * @copyright   &copy; 2000-2002 <a href="http://www.ilog.fr/">ILOG, S.A.</a>
 */

/**
 * This is the class of instructions getting an object field value
 * from the object currently on the runtime's object stack.
 */

import ilog.language.design.types.DefinedEntry;
import ilog.language.design.backend.Runtime;
import ilog.language.design.backend.NullValueException;

public class GetObjectField extends FieldInstruction
{
  public GetObjectField (DefinedEntry codeEntry)
    {
      super(codeEntry);
      setName("GET_FIELD_O");
    }

  public void execute (Runtime r) throws NullValueException
    {
      r.pushObject(getObject(r,"access").getObjectField(offset()));
      r.incIP();
    }
}