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package hlt.language.design.instructions;

/**
 * @version     Last modified on Wed Jun 20 14:29:51 2012 by hak
 * @author      <a href="mailto:hak@acm.org">Hassan A&iuml;t-Kaci</a>
 * @copyright   &copy; <a href="http://www.hassan-ait-kaci.net/">by the author</a>
 */


import hlt.language.design.backend.ObjectMap;
import hlt.language.design.backend.Indexable;
import hlt.language.design.backend.Runtime;
import hlt.language.design.backend.SizeMatchException;

public class MakeObjectMap extends Instruction
{
  public MakeObjectMap ()
    {
      setName("MAKE_MAP_O");
    }

  public final void execute (Runtime r) throws SizeMatchException
    {
      Indexable indexable = (Indexable)r.popObject();
      int size = r.popInt();
      if (indexable.size() != size)
        throw new SizeMatchException("indexable size ("+indexable.size()+
                                     ") does not match array size ("+size+")");

      Object[] array = new Object[size];
      for (int i=0; i<size; i++)
        array[i] = r.popObject();
      r.pushObject(new ObjectMap(array,indexable));
      r.incIP();
    }
}