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Common Lisp implementation running on the JVM
There is a newer version: 1.0.1
/*
 * MacroObject.java
 *
 * Copyright (C) 2003-2005 Peter Graves
 * $Id: MacroObject.java 13440 2011-08-05 21:25:10Z ehuelsmann $
 *
 * 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.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module.  An independent module is a module which is not derived from
 * or based on this library.  If you modify this library, you may extend
 * this exception to your version of the library, but you are not
 * obligated to do so.  If you do not wish to do so, delete this
 * exception statement from your version.
 */

package org.armedbear.lisp;

import static org.armedbear.lisp.Lisp.*;

public final class MacroObject extends Function
{
  protected final LispObject name;
  public final LispObject expander;

  public MacroObject(LispObject name, LispObject expander)
  {
    this.name = name;
    this.expander = expander;
    if (name instanceof Symbol && name != NIL && expander instanceof Function)
      ((Function)expander).setLambdaName(list(Symbol.MACRO_FUNCTION,
                                               name));
  }

  @Override
  public LispObject execute()
  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject arg)
  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second,
                            LispObject third)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second,
                            LispObject third, LispObject fourth)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second,
                            LispObject third, LispObject fourth,
                            LispObject fifth)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second,
                            LispObject third, LispObject fourth,
                            LispObject fifth, LispObject sixth)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second,
                            LispObject third, LispObject fourth,
                            LispObject fifth, LispObject sixth,
                            LispObject seventh)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject first, LispObject second,
                            LispObject third, LispObject fourth,
                            LispObject fifth, LispObject sixth,
                            LispObject seventh, LispObject eighth)

  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public LispObject execute(LispObject[] args)
  {
    return error(new UndefinedFunction(name));
  }

  @Override
  public String printObject()
  {
    return unreadableString("MACRO-OBJECT");
  }
}