01: /*
02: * function_info.java
03: *
04: * Copyright (C) 2004 Peter Graves
05: * $Id: function_info.java,v 1.2 2004/08/21 16:21:37 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 final class function_info extends Lisp {
25: static {
26: FUNCTION_TABLE = new EqualHashTable(64, NIL, NIL);
27: }
28:
29: // ### function-info name
30: private static final Primitive1 FUNCTION_INFO = new Primitive1(
31: "function-info", PACKAGE_SYS, false) {
32: public LispObject execute(LispObject arg)
33: throws ConditionThrowable {
34: LispObject info = FUNCTION_TABLE.get(arg);
35: return info != null ? info : NIL;
36: }
37: };
38:
39: // ### %set-function-info name value
40: private static final Primitive2 _SET_FUNCTION_INFO = new Primitive2(
41: "%set-function-info", PACKAGE_SYS, false) {
42: public LispObject execute(LispObject first, LispObject second)
43: throws ConditionThrowable {
44: if (second == NIL)
45: FUNCTION_TABLE.remhash(first);
46: FUNCTION_TABLE.put(first, second);
47: return second;
48: }
49: };
50: }
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