1 /*
2 * #%L
3 * prolobjectlink-jpi-jpl7
4 * %%
5 * Copyright (C) 2019 Prolobjectlink Project
6 * %%
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 * #L%
28 */
29 package io.github.prolobjectlink.prolog.jpl7;
30
31 import static io.github.prolobjectlink.prolog.PrologTermType.NIL_TYPE;
32
33 import org.jpl7.Atom;
34
35 import io.github.prolobjectlink.prolog.PrologProvider;
36 import io.github.prolobjectlink.prolog.PrologTerm;
37
38 /**
39 *
40 * @author Jose Zalacain
41 * @since 1.0
42 */
43 final class JplNil extends JplTerm implements PrologTerm {
44
45 JplNil(PrologProvider provider) {
46 super(NIL_TYPE, provider, new Atom("nil"));
47 }
48
49 public PrologTerm[] getArguments() {
50 return new PrologTerm[0];
51 }
52
53 public int getArity() {
54 return 0;
55 }
56
57 public String getFunctor() {
58 return "" + value + "";
59 }
60
61 }