ladybird/AK/JsonValue.cpp

200 lines
4.7 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@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.
*/
#include <AK/Function.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonParser.h>
#include <AK/JsonValue.h>
#include <AK/StringBuilder.h>
namespace AK {
JsonValue::JsonValue(Type type)
: m_type(type)
{
}
JsonValue::JsonValue(const JsonValue& other)
{
copy_from(other);
}
JsonValue& JsonValue::operator=(const JsonValue& other)
{
if (this != &other) {
clear();
copy_from(other);
}
return *this;
}
void JsonValue::copy_from(const JsonValue& other)
{
m_type = other.m_type;
switch (m_type) {
case Type::String:
ASSERT(!m_value.as_string);
m_value.as_string = other.m_value.as_string;
m_value.as_string->ref();
break;
case Type::Object:
m_value.as_object = new JsonObject(*other.m_value.as_object);
break;
case Type::Array:
m_value.as_array = new JsonArray(*other.m_value.as_array);
break;
default:
m_value.as_string = other.m_value.as_string;
break;
}
}
JsonValue::JsonValue(JsonValue&& other)
{
m_type = exchange(other.m_type, Type::Undefined);
m_value.as_string = exchange(other.m_value.as_string, nullptr);
}
JsonValue& JsonValue::operator=(JsonValue&& other)
{
if (this != &other) {
clear();
m_type = exchange(other.m_type, Type::Undefined);
m_value.as_string = exchange(other.m_value.as_string, nullptr);
}
return *this;
}
JsonValue::JsonValue(i32 value)
: m_type(Type::Int32)
{
m_value.as_i32 = value;
}
JsonValue::JsonValue(u32 value)
: m_type(Type::UnsignedInt32)
{
m_value.as_u32 = value;
}
JsonValue::JsonValue(i64 value)
: m_type(Type::Int64)
{
m_value.as_i64 = value;
}
JsonValue::JsonValue(u64 value)
: m_type(Type::UnsignedInt64)
{
m_value.as_u64 = value;
}
JsonValue::JsonValue(const char* cstring)
: JsonValue(String(cstring))
{
}
#if !defined(BOOTSTRAPPER) && !defined(KERNEL)
JsonValue::JsonValue(double value)
: m_type(Type::Double)
{
m_value.as_double = value;
}
#endif
JsonValue::JsonValue(bool value)
: m_type(Type::Bool)
{
m_value.as_bool = value;
}
JsonValue::JsonValue(const String& value)
{
if (value.is_null()) {
m_type = Type::Null;
} else {
m_type = Type::String;
m_value.as_string = const_cast<StringImpl*>(value.impl());
m_value.as_string->ref();
}
}
JsonValue::JsonValue(const IPv4Address& value)
: JsonValue(value.to_string())
{
}
JsonValue::JsonValue(const JsonObject& value)
: m_type(Type::Object)
{
m_value.as_object = new JsonObject(value);
}
JsonValue::JsonValue(const JsonArray& value)
: m_type(Type::Array)
{
m_value.as_array = new JsonArray(value);
}
JsonValue::JsonValue(JsonObject&& value)
: m_type(Type::Object)
{
m_value.as_object = new JsonObject(move(value));
}
JsonValue::JsonValue(JsonArray&& value)
: m_type(Type::Array)
{
m_value.as_array = new JsonArray(move(value));
}
void JsonValue::clear()
{
switch (m_type) {
case Type::String:
m_value.as_string->unref();
break;
case Type::Object:
delete m_value.as_object;
break;
case Type::Array:
delete m_value.as_array;
break;
default:
break;
}
m_type = Type::Undefined;
m_value.as_string = nullptr;
}
JsonValue JsonValue::from_string(const StringView& input)
{
return JsonParser(input).parse();
}
}