jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <AK/JsonValue.h>
30
31namespace AK {
32
33template<typename Builder>
34class JsonObjectSerializer;
35
36template<typename Builder>
37class JsonArraySerializer {
38public:
39 explicit JsonArraySerializer(Builder& builder)
40 : m_builder(builder)
41 {
42 m_builder.append('[');
43 }
44
45 JsonArraySerializer(const JsonArraySerializer&) = delete;
46 JsonArraySerializer(JsonArraySerializer&&) = delete;
47
48 ~JsonArraySerializer()
49 {
50 if (!m_finished)
51 finish();
52 }
53
54 void add(const JsonValue& value)
55 {
56 begin_item();
57 value.serialize(m_builder);
58 }
59
60 void add(const StringView& value)
61 {
62 begin_item();
63 m_builder.append('"');
64 m_builder.append(value);
65 m_builder.append('"');
66 }
67
68 void add(const String& value)
69 {
70 begin_item();
71 m_builder.append('"');
72 m_builder.append(value);
73 m_builder.append('"');
74 }
75
76 void add(const char* value)
77 {
78 begin_item();
79 m_builder.append('"');
80 m_builder.append(value);
81 m_builder.append('"');
82 }
83
84 JsonArraySerializer<Builder> add_array()
85 {
86 begin_item();
87 return JsonArraySerializer(m_builder);
88 }
89
90 // Implemented in JsonObjectSerializer.h
91 JsonObjectSerializer<Builder> add_object();
92
93 void finish()
94 {
95 ASSERT(!m_finished);
96 m_finished = true;
97 m_builder.append(']');
98 }
99
100private:
101 void begin_item()
102 {
103 if (!m_empty)
104 m_builder.append(',');
105 m_empty = false;
106 }
107
108 Builder& m_builder;
109 bool m_empty { true };
110 bool m_finished { false };
111};
112
113}
114
115using AK::JsonArraySerializer;