source: trunk/abcl/src/org/armedbear/lisp/HashTableFunctions.java @ 12656

Last change on this file since 12656 was 12513, checked in by ehuelsmann, 15 years ago

Remove 'private' keyword to eliminate the Java requirement

for the compiler to generate synthetic accessors: functions that
don't appear in the source but do appear in the class file.

Patch by: Douglas Miles <dmiles _at_ users.sf.net>

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 8.1 KB
Line 
1/*
2 * HashTableFunctions.java
3 *
4 * Copyright (C) 2002-2006 Peter Graves
5 * $Id: HashTableFunctions.java 12513 2010-03-02 22:35:36Z ehuelsmann $
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
34package org.armedbear.lisp;
35
36import static org.armedbear.lisp.Lisp.*;
37
38public final class HashTableFunctions
39{
40  static final LispObject FUNCTION_EQ =
41    Symbol.EQ.getSymbolFunction();
42  static final LispObject FUNCTION_EQL =
43    Symbol.EQL.getSymbolFunction();
44  static final LispObject FUNCTION_EQUAL =
45    Symbol.EQUAL.getSymbolFunction();
46  static final LispObject FUNCTION_EQUALP =
47    Symbol.EQUALP.getSymbolFunction();
48
49  // ### %make-hash-table
50  private static final Primitive _MAKE_HASH_TABLE =
51    new Primitive("%make-hash-table", PACKAGE_SYS, false)
52    {
53      @Override
54      public LispObject execute(LispObject test, LispObject size,
55                                LispObject rehashSize, LispObject rehashThreshold)
56
57      {
58        final int n = Fixnum.getValue(size);
59        if (test == FUNCTION_EQL || test == NIL)
60          return new EqlHashTable(n, rehashSize, rehashThreshold);
61        if (test == FUNCTION_EQ)
62          return new EqHashTable(n, rehashSize, rehashThreshold);
63        if (test == FUNCTION_EQUAL)
64          return new EqualHashTable(n, rehashSize, rehashThreshold);
65        if (test == FUNCTION_EQUALP)
66          return new EqualpHashTable(n, rehashSize, rehashThreshold);
67        return error(new LispError("Unsupported test for MAKE-HASH-TABLE: " +
68                                    test.writeToString()));
69      }
70    };
71
72  // ### gethash key hash-table &optional default => value, present-p
73  private static final Primitive GETHASH =
74    new Primitive(Symbol.GETHASH, "key hash-table &optional default")
75    {
76      @Override
77      public LispObject execute(LispObject key, LispObject ht)
78
79      {
80          return checkHashTable(ht).gethash(key);
81      }
82     
83      @Override
84      public LispObject execute(LispObject key, LispObject ht,
85                                LispObject defaultValue)
86
87      {
88          return checkHashTable(ht).gethash(key, defaultValue);
89      }
90    };
91
92  // ### gethash1 key hash-table => value
93  private static final Primitive GETHASH1 =
94    new Primitive(Symbol.GETHASH1, "key hash-table")
95    {
96      @Override
97      public LispObject execute(LispObject first, LispObject second)
98
99      {
100        final HashTable ht = checkHashTable(second);
101        synchronized (ht)
102          {
103            final LispObject value = ht.get(first);
104            return value != null ? value : NIL;
105          }
106      }
107    };
108
109  // ### puthash key hash-table new-value &optional default => value
110  private static final Primitive PUTHASH =
111    new Primitive(Symbol.PUTHASH,
112                  "key hash-table new-value &optional default")
113    {
114      @Override
115      public LispObject execute(LispObject key, LispObject ht,
116                                LispObject value)
117
118      {
119          return checkHashTable(ht).puthash(key, value);
120      }
121      @Override
122      public LispObject execute(LispObject key, LispObject ht,
123                                LispObject ignored, LispObject value)
124
125      {
126          return checkHashTable(ht).puthash(key, value);
127      }
128    };
129
130  // remhash key hash-table => generalized-boolean
131  private static final Primitive REMHASH =
132    new Primitive(Symbol.REMHASH, "key hash-table")
133    {
134      @Override
135      public LispObject execute(LispObject key, LispObject ht)
136
137      {
138            return checkHashTable(ht).remhash(key);
139      }
140    };
141
142  // ### clrhash hash-table => hash-table
143  private static final Primitive CLRHASH =
144    new Primitive(Symbol.CLRHASH, "hash-table")
145    {
146      @Override
147      public LispObject execute(LispObject ht)
148      {
149          checkHashTable(ht).clear();
150          return ht;
151      }
152    };
153
154  // ### hash-table-count
155  private static final Primitive HASH_TABLE_COUNT =
156    new Primitive(Symbol.HASH_TABLE_COUNT, "hash-table")
157    {
158      @Override
159      public LispObject execute(LispObject arg)
160      {
161          return Fixnum.getInstance(checkHashTable(arg).getCount());
162      }
163    };
164
165  // ### sxhash object => hash-code
166  private static final Primitive SXHASH =
167    new Primitive(Symbol.SXHASH, "object")
168    {
169      @Override
170      public LispObject execute(LispObject arg)
171      {
172        return Fixnum.getInstance(arg.sxhash());
173      }
174    };
175
176  // ### psxhash object => hash-code
177  // For EQUALP hash tables.
178  private static final Primitive PSXHASH =
179    new Primitive("psxhash", PACKAGE_SYS, true, "object")
180    {
181      @Override
182      public LispObject execute(LispObject arg)
183      {
184        return Fixnum.getInstance(arg.psxhash());
185      }
186    };
187
188  // ### hash-table-p
189  private static final Primitive HASH_TABLE_P =
190    new Primitive(Symbol.HASH_TABLE_P,"object")
191    {
192      @Override
193      public LispObject execute(LispObject arg)
194      {
195        return arg instanceof HashTable ? T : NIL;
196      }
197    };
198
199  // ### hash-table-entries
200  private static final Primitive HASH_TABLE_ENTRIES =
201    new Primitive("hash-table-entries", PACKAGE_SYS, false)
202    {
203      @Override
204      public LispObject execute(LispObject arg)
205      {
206          return checkHashTable(arg).ENTRIES();
207      }
208    };
209
210  // ### hash-table-test
211  private static final Primitive HASH_TABLE_TEST =
212    new Primitive(Symbol.HASH_TABLE_TEST, "hash-table")
213    {
214      @Override
215      public LispObject execute(LispObject arg)
216      {
217          return checkHashTable(arg).getTest();
218      }
219    };
220
221  // ### hash-table-size
222  private static final Primitive HASH_TABLE_SIZE =
223    new Primitive(Symbol.HASH_TABLE_SIZE, "hash-table")
224    {
225      @Override
226      public LispObject execute(LispObject arg)
227      {
228          return Fixnum.getInstance(checkHashTable(arg).getSize());
229      }
230    };
231
232  // ### hash-table-rehash-size
233  private static final Primitive HASH_TABLE_REHASH_SIZE =
234    new Primitive(Symbol.HASH_TABLE_REHASH_SIZE, "hash-table")
235    {
236      @Override
237      public LispObject execute(LispObject arg)
238      {
239          return checkHashTable(arg).getRehashSize();
240      }
241    };
242
243  // ### hash-table-rehash-threshold
244  private static final Primitive HASH_TABLE_REHASH_THRESHOLD =
245    new Primitive(Symbol.HASH_TABLE_REHASH_THRESHOLD, "hash-table")
246    {
247      @Override
248      public LispObject execute(LispObject arg)
249      {
250          return checkHashTable(arg).getRehashThreshold();
251      }
252    };
253
254  // ### maphash
255  private static final Primitive MAPHASH =
256    new Primitive(Symbol.MAPHASH, "function hash-table")
257    {
258      @Override
259      public LispObject execute(LispObject first, LispObject second)
260
261      {
262        return checkHashTable(second).MAPHASH(first);
263      }
264    };
265
266protected static HashTable checkHashTable(LispObject ht) {
267        if (ht instanceof HashTable) return (HashTable)ht;
268    type_error(ht, Symbol.HASH_TABLE);   
269        return null;
270}
271}
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