1 /* 2 * UndefinedFunction.java 3 * 4 * Copyright (C) 2002-2005 Peter Graves 5 * $Id$ 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 20 * 21 * As a special exception, the copyright holders of this library give you 22 * permission to link this library with independent modules to produce an 23 * executable, regardless of the license terms of these independent 24 * modules, and to copy and distribute the resulting executable under 25 * terms of your choice, provided that you also meet, for each linked 26 * independent module, the terms and conditions of the license of that 27 * module. An independent module is a module which is not derived from 28 * or based on this library. If you modify this library, you may extend 29 * this exception to your version of the library, but you are not 30 * obligated to do so. If you do not wish to do so, delete this 31 * exception statement from your version. 32 */ 33 34 package org.armedbear.lisp; 35 36 import static org.armedbear.lisp.Lisp.*; 37 38 public final class UndefinedFunction extends CellError 39 { 40 // obj is either the name of the undefined function or an initArgs list. UndefinedFunction(LispObject obj)41 public UndefinedFunction(LispObject obj) 42 { 43 super(StandardClass.UNDEFINED_FUNCTION); 44 if (obj instanceof Cons) 45 initialize(obj); 46 else 47 setCellName(obj); 48 } 49 50 @Override typeOf()51 public LispObject typeOf() 52 { 53 return Symbol.UNDEFINED_FUNCTION; 54 } 55 56 @Override classOf()57 public LispObject classOf() 58 { 59 return StandardClass.UNDEFINED_FUNCTION; 60 } 61 62 @Override typep(LispObject type)63 public LispObject typep(LispObject type) 64 { 65 if (type == Symbol.UNDEFINED_FUNCTION) 66 return T; 67 if (type == StandardClass.UNDEFINED_FUNCTION) 68 return T; 69 return super.typep(type); 70 } 71 72 @Override getMessage()73 public String getMessage() 74 { 75 StringBuilder sb = new StringBuilder("The function "); 76 sb.append(getCellName().princToString()); 77 sb.append(" is undefined."); 78 return sb.toString(); 79 } 80 } 81