01: /*
02: * PrintNotReadable.java
03: *
04: * Copyright (C) 2004 Peter Graves
05: * $Id: PrintNotReadable.java,v 1.2 2004/03/18 00:26:07 piso Exp $
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * 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:
22: package org.armedbear.lisp;
23:
24: public class PrintNotReadable extends LispError {
25: public final LispObject object;
26:
27: public PrintNotReadable(LispObject initArgs)
28: throws ConditionThrowable {
29: super (initArgs);
30: LispObject object = NIL;
31: LispObject first, second;
32: while (initArgs != NIL) {
33: first = initArgs.car();
34: initArgs = initArgs.cdr();
35: second = initArgs.car();
36: initArgs = initArgs.cdr();
37: if (first == Keyword.OBJECT) {
38: object = second;
39: break;
40: }
41: }
42: this .object = object;
43: }
44:
45: public LispObject typeOf() {
46: return Symbol.PRINT_NOT_READABLE;
47: }
48:
49: public LispClass classOf() {
50: return BuiltInClass.PRINT_NOT_READABLE;
51: }
52:
53: public LispObject typep(LispObject type) throws ConditionThrowable {
54: if (type == Symbol.PRINT_NOT_READABLE)
55: return T;
56: if (type == BuiltInClass.PRINT_NOT_READABLE)
57: return T;
58: return super .typep(type);
59: }
60:
61: // ### print-not-readable-object
62: private static final Primitive1 PRINT_NOT_READABLE_OBJECT = new Primitive1(
63: "print-not-readable-object", "condition") {
64: public LispObject execute(LispObject arg)
65: throws ConditionThrowable {
66: try {
67: return ((PrintNotReadable) arg).object;
68: } catch (ClassCastException e) {
69: return signal(new TypeError(arg,
70: Symbol.PRINT_NOT_READABLE));
71: }
72: }
73: };
74: }
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