source: trunk/abcl/src/org/armedbear/lisp/known-symbols.lisp @ 12918

Last change on this file since 12918 was 12918, checked in by astalla, 11 years ago

generic-class-file branch merged.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 2.8 KB
Line 
1;;; known-symbols.lisp
2;;;
3;;; Copyright (C) 2005 Peter Graves
4;;; $Id: known-symbols.lisp 12918 2010-09-24 22:35:02Z astalla $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19;;;
20;;; As a special exception, the copyright holders of this library give you
21;;; permission to link this library with independent modules to produce an
22;;; executable, regardless of the license terms of these independent
23;;; modules, and to copy and distribute the resulting executable under
24;;; terms of your choice, provided that you also meet, for each linked
25;;; independent module, the terms and conditions of the license of that
26;;; module.  An independent module is a module which is not derived from
27;;; or based on this library.  If you modify this library, you may extend
28;;; this exception to your version of the library, but you are not
29;;; obligated to do so.  If you do not wish to do so, delete this
30;;; exception statement from your version.
31
32(in-package #:system)
33
34(require "JAVA")
35
36(export '(lookup-known-symbol))
37
38(let ((symbols (make-hash-table :test 'eq :size 2048)))
39  (defun initialize-known-symbols (source ht)
40    (let* ((source-class (java:jclass source))
41           (class-designator (jvm::make-class-name source))
42           (symbol-class (java:jclass "org.armedbear.lisp.Symbol"))
43           (fields (java:jclass-fields source-class :declared t :public t)))
44      (dotimes (i (length fields))
45        (let* ((field (aref fields i))
46               (type (java:jfield-type field)))
47          (when (equal type symbol-class)
48            (let* ((name (java:jfield-name field))
49                   (symbol (java:jfield source-class name)))
50              (puthash symbol ht (list name class-designator)))))))
51    (hash-table-count ht))
52
53  (initialize-known-symbols "org.armedbear.lisp.Symbol" symbols)
54  (initialize-known-symbols "org.armedbear.lisp.Keyword" symbols)
55  (initialize-known-symbols "org.armedbear.lisp.Lisp" symbols)
56  (initialize-known-symbols "org.armedbear.lisp.Nil" symbols)
57
58  (defun lookup-known-symbol (symbol)
59    "Returns the name of the field and its class designator
60which stores the Java object `symbol'."
61    (values-list (gethash1 symbol symbols))))
62
63
64(provide '#:known-symbols)
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