mirror of
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213 lines
5.1 KiB
C++
213 lines
5.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2024, Dan Klishch <danilklishch@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/JsonArray.h>
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#include <AK/JsonObject.h>
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#include <AK/JsonParser.h>
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#include <AK/JsonValue.h>
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#include <AK/StringView.h>
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namespace AK {
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namespace {
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using JsonValueStorage = Variant<
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Empty,
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bool,
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i64,
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u64,
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double,
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ByteString,
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NonnullOwnPtr<JsonArray>,
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NonnullOwnPtr<JsonObject>>;
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static ErrorOr<JsonValueStorage> clone(JsonValueStorage const& other)
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{
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return other.visit(
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[](NonnullOwnPtr<JsonArray> const& value) -> ErrorOr<JsonValueStorage> {
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return TRY(try_make<JsonArray>(*value));
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},
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[](NonnullOwnPtr<JsonObject> const& value) -> ErrorOr<JsonValueStorage> {
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return TRY(try_make<JsonObject>(*value));
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},
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[](auto const& value) -> ErrorOr<JsonValueStorage> { return JsonValueStorage(value); });
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}
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}
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JsonValue::JsonValue() = default;
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JsonValue::~JsonValue() = default;
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JsonValue::JsonValue(JsonValue&&) = default;
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JsonValue& JsonValue::operator=(JsonValue&&) = default;
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JsonValue::JsonValue(JsonValue const& other)
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: m_value(MUST(clone(other.m_value)))
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{
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}
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JsonValue& JsonValue::operator=(JsonValue const& other)
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{
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if (this != &other)
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m_value = MUST(clone(other.m_value));
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return *this;
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}
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JsonValue& JsonValue::operator=(JsonArray const& other)
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{
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return *this = JsonValue(other);
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}
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JsonValue& JsonValue::operator=(JsonArray&& other)
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{
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return *this = JsonValue(other);
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}
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JsonValue& JsonValue::operator=(JsonObject const& other)
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{
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return *this = JsonValue(other);
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}
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JsonValue& JsonValue::operator=(JsonObject&& other)
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{
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return *this = JsonValue(other);
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}
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bool JsonValue::equals(JsonValue const& other) const
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{
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if (is_null() && other.is_null())
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return true;
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if (is_bool() && other.is_bool() && as_bool() == other.as_bool())
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return true;
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if (is_string() && other.is_string() && as_string() == other.as_string())
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return true;
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if (is_number() && other.is_number()) {
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auto normalize = [](Variant<u64, i64, double> representation, bool& is_negative) {
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return representation.visit(
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[&](u64& value) -> Variant<u64, double> {
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is_negative = false;
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return value;
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},
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[&](i64& value) -> Variant<u64, double> {
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is_negative = value < 0;
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return static_cast<u64>(abs(value));
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},
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[&](double& value) -> Variant<u64, double> {
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is_negative = value < 0;
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value = abs(value);
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if (static_cast<double>(static_cast<u64>(value)) == value)
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return static_cast<u64>(value);
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return value;
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});
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};
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bool is_this_negative;
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auto normalized_this = normalize(as_number(), is_this_negative);
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bool is_that_negative;
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auto normalized_that = normalize(other.as_number(), is_that_negative);
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return is_this_negative == is_that_negative && normalized_this == normalized_that;
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}
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if (is_array() && other.is_array() && as_array().size() == other.as_array().size()) {
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bool result = true;
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for (size_t i = 0; i < as_array().size(); ++i) {
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result &= as_array().at(i).equals(other.as_array().at(i));
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}
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return result;
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}
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if (is_object() && other.is_object() && as_object().size() == other.as_object().size()) {
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bool result = true;
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as_object().for_each_member([&](auto& key, auto& value) {
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auto other_value = other.as_object().get(key);
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if (other_value.has_value())
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result &= value.equals(*other_value);
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else
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result = false;
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});
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return result;
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}
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return false;
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}
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JsonValue::JsonValue(int value)
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: m_value(i64 { value })
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{
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}
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JsonValue::JsonValue(unsigned value)
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: m_value(i64 { value })
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{
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}
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JsonValue::JsonValue(long value)
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: m_value(i64 { value })
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{
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}
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JsonValue::JsonValue(unsigned long value)
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: m_value(u64 { value })
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{
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}
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JsonValue::JsonValue(long long value)
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: m_value(i64 { value })
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{
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}
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JsonValue::JsonValue(long long unsigned value)
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: m_value(u64 { value })
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{
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}
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JsonValue::JsonValue(char const* cstring)
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: m_value(ByteString { cstring })
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{
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}
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JsonValue::JsonValue(double value)
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: m_value(double { value })
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{
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}
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JsonValue::JsonValue(ByteString const& value)
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: m_value(value)
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{
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}
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JsonValue::JsonValue(StringView value)
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: m_value(ByteString { value })
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{
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}
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JsonValue::JsonValue(JsonObject const& value)
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: m_value(make<JsonObject>(value))
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{
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}
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JsonValue::JsonValue(JsonArray const& value)
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: m_value(make<JsonArray>(value))
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{
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}
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JsonValue::JsonValue(JsonObject&& value)
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: m_value(make<JsonObject>(value))
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{
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}
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JsonValue::JsonValue(JsonArray&& value)
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: m_value(make<JsonArray>(value))
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{
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}
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ErrorOr<JsonValue> JsonValue::from_string(StringView input)
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{
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return JsonParser(input).parse();
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}
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}
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