1/*
2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 * This file is available under and governed by the GNU General Public
28 * License version 2 only, as published by the Free Software Foundation.
29 * However, the following notice accompanied the original version of this
30 * file:
31 *
32 * The MIT License
33 *
34 * Copyright (c) 2004-2014 Paul R. Holser, Jr.
35 *
36 * Permission is hereby granted, free of charge, to any person obtaining
37 * a copy of this software and associated documentation files (the
38 * "Software"), to deal in the Software without restriction, including
39 * without limitation the rights to use, copy, modify, merge, publish,
40 * distribute, sublicense, and/or sell copies of the Software, and to
41 * permit persons to whom the Software is furnished to do so, subject to
42 * the following conditions:
43 *
44 * The above copyright notice and this permission notice shall be
45 * included in all copies or substantial portions of the Software.
46 *
47 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
48 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
49 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
50 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
51 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
52 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
53 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
54 */
55
56package jdk.internal.joptsimple;
57
58import java.util.Collection;
59import java.util.List;
60
61import static java.util.Collections.*;
62
63/**
64 * A specification for an option that does not accept arguments.
65 *
66 * @author <a href="mailto:pholser@alumni.rice.edu">Paul Holser</a>
67 */
68class NoArgumentOptionSpec extends AbstractOptionSpec<Void> {
69    NoArgumentOptionSpec( String option ) {
70        this( singletonList( option ), "" );
71    }
72
73    NoArgumentOptionSpec( Collection<String> options, String description ) {
74        super( options, description );
75    }
76
77    @Override
78    void handleOption( OptionParser parser, ArgumentList arguments, OptionSet detectedOptions,
79        String detectedArgument ) {
80
81        detectedOptions.add( this );
82    }
83
84    public boolean acceptsArguments() {
85        return false;
86    }
87
88    public boolean requiresArgument() {
89        return false;
90    }
91
92    public boolean isRequired() {
93        return false;
94    }
95
96    public String argumentDescription() {
97        return "";
98    }
99
100    public String argumentTypeIndicator() {
101        return "";
102    }
103
104    @Override
105    protected Void convert( String argument ) {
106        return null;
107    }
108
109    public List<Void> defaultValues() {
110        return emptyList();
111    }
112}
113