ladybird/AK/JsonObjectSerializer.h

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/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/JsonArraySerializer.h>
#include <AK/JsonValue.h>
namespace AK {
template<typename Builder>
class JsonObjectSerializer {
public:
explicit JsonObjectSerializer(Builder& builder)
: m_builder(builder)
{
m_builder.append('{');
}
JsonObjectSerializer(const JsonObjectSerializer&) = delete;
JsonObjectSerializer(JsonObjectSerializer&&) = delete;
~JsonObjectSerializer()
{
if (!m_finished)
finish();
}
void add(const StringView& key, const JsonValue& value)
{
begin_item(key);
value.serialize(m_builder);
}
void add(const StringView& key, const StringView& value)
{
begin_item(key);
m_builder.append('"');
m_builder.append_escaped_for_json(value);
m_builder.append('"');
}
void add(const StringView& key, const String& value)
{
begin_item(key);
m_builder.append('"');
m_builder.append_escaped_for_json(value);
m_builder.append('"');
}
void add(const StringView& key, const char* value)
{
begin_item(key);
m_builder.append('"');
m_builder.append_escaped_for_json(value);
m_builder.append('"');
}
void add(const StringView& key, bool value)
{
begin_item(key);
m_builder.append(value ? "true" : "false");
}
void add(const StringView& key, int value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
void add(const StringView& key, unsigned value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
void add(const StringView& key, long value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
void add(const StringView& key, long unsigned value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
void add(const StringView& key, long long value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
void add(const StringView& key, long long unsigned value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
void add(const StringView& key, double value)
{
begin_item(key);
m_builder.appendff("{}", value);
}
JsonArraySerializer<Builder> add_array(const StringView& key)
{
begin_item(key);
return JsonArraySerializer(m_builder);
}
JsonObjectSerializer<Builder> add_object(const StringView& key)
{
begin_item(key);
return JsonObjectSerializer(m_builder);
}
void finish()
{
ASSERT(!m_finished);
m_finished = true;
m_builder.append('}');
}
private:
void begin_item(const StringView& key)
{
if (!m_empty)
m_builder.append(',');
m_empty = false;
m_builder.append('"');
m_builder.append_escaped_for_json(key);
m_builder.append("\":");
}
Builder& m_builder;
bool m_empty { true };
bool m_finished { false };
};
template<typename Builder>
JsonObjectSerializer<Builder> JsonArraySerializer<Builder>::add_object()
{
begin_item();
return JsonObjectSerializer(m_builder);
}
}
using AK::JsonObjectSerializer;