01: /*
02: * JavaObject.java
03: *
04: * Copyright (C) 2002-2003 Peter Graves
05: * $Id: JavaObject.java,v 1.7 2003/11/15 11:03:35 beedlem 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 JavaObject extends LispObject {
25: private final Object obj;
26:
27: public JavaObject(Object obj) {
28: Debug.assertTrue(obj != null);
29: this .obj = obj;
30: }
31:
32: public final Object getObject() {
33: return obj;
34: }
35:
36: public Object javaInstance() {
37: return obj;
38: }
39:
40: public static final Object getObject(LispObject o)
41: throws ConditionThrowable {
42: try {
43: return ((JavaObject) o).obj;
44: } catch (ClassCastException e) {
45: throw new ConditionThrowable(
46: new TypeError(o, "Java object"));
47: }
48: }
49:
50: public String toString() {
51: if (obj instanceof ConditionThrowable)
52: return obj.toString();
53:
54: StringBuffer sb = new StringBuffer("#<JAVAOBJECT ");
55: sb.append(obj.getClass().getName());
56: sb.append(" \"");
57: sb.append(obj.toString());
58: sb.append("\">");
59: return sb.toString();
60: }
61: }
|