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https://github.com/LadybirdBrowser/ladybird.git
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e6f907a155
Problem: - Many constructors are defined as `{}` rather than using the ` = default` compiler-provided constructor. - Some types provide an implicit conversion operator from `nullptr_t` instead of requiring the caller to default construct. This violates the C++ Core Guidelines suggestion to declare single-argument constructors explicit (https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c46-by-default-declare-single-argument-constructors-explicit). Solution: - Change default constructors to use the compiler-provided default constructor. - Remove implicit conversion operators from `nullptr_t` and change usage to enforce type consistency without conversion.
209 lines
5.7 KiB
C++
209 lines
5.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/HashMap.h>
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#include <AK/JsonArray.h>
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#include <AK/JsonObjectSerializer.h>
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#include <AK/JsonValue.h>
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#include <AK/String.h>
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#include <AK/StringImpl.h>
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namespace AK {
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class JsonObject {
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public:
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JsonObject() = default;
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~JsonObject() = default;
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JsonObject(const JsonObject& other)
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: m_order(other.m_order)
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, m_members(other.m_members)
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{
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}
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JsonObject(JsonObject&& other)
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: m_order(move(other.m_order))
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, m_members(move(other.m_members))
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{
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}
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JsonObject& operator=(const JsonObject& other)
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{
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if (this != &other) {
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m_members = other.m_members;
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m_order = other.m_order;
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}
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return *this;
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}
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JsonObject& operator=(JsonObject&& other)
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{
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if (this != &other) {
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m_members = move(other.m_members);
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m_order = move(other.m_order);
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}
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return *this;
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}
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int size() const { return m_members.size(); }
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bool is_empty() const { return m_members.is_empty(); }
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JsonValue get(const String& key) const
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{
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auto* value = get_ptr(key);
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return value ? *value : JsonValue(JsonValue::Type::Null);
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}
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JsonValue get_or(const String& key, JsonValue alternative) const
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{
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auto* value = get_ptr(key);
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return value ? *value : alternative;
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}
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const JsonValue* get_ptr(const String& key) const
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{
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auto it = m_members.find(key);
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if (it == m_members.end())
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return nullptr;
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return &(*it).value;
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}
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bool has(const String& key) const
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{
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return m_members.contains(key);
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}
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void set(const String& key, JsonValue value)
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{
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if (m_members.set(key, move(value)) == HashSetResult::ReplacedExistingEntry)
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m_order.remove(m_order.find_first_index(key).value());
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m_order.append(key);
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}
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template<typename Callback>
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void for_each_member(Callback callback) const
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{
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for (size_t i = 0; i < m_order.size(); ++i) {
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auto property = m_order[i];
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callback(property, m_members.get(property).value());
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}
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}
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bool remove(const String& key)
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{
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if (m_members.remove(key)) {
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m_order.remove(m_order.find_first_index(key).value());
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return true;
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}
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return false;
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}
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template<typename Builder>
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typename Builder::OutputType serialized() const;
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template<typename Builder>
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void serialize(Builder&) const;
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String to_string() const { return serialized<StringBuilder>(); }
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private:
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Vector<String> m_order;
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HashMap<String, JsonValue> m_members;
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};
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template<typename Builder>
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inline void JsonObject::serialize(Builder& builder) const
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{
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JsonObjectSerializer serializer { builder };
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for_each_member([&](auto& key, auto& value) {
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serializer.add(key, value);
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});
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}
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template<typename Builder>
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inline typename Builder::OutputType JsonObject::serialized() const
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{
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Builder builder;
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serialize(builder);
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return builder.build();
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}
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template<typename Builder>
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inline void JsonValue::serialize(Builder& builder) const
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{
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switch (m_type) {
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case Type::String: {
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builder.append("\"");
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builder.append_escaped_for_json({ m_value.as_string->characters(), m_value.as_string->length() });
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builder.append("\"");
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} break;
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case Type::Array:
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m_value.as_array->serialize(builder);
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break;
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case Type::Object:
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m_value.as_object->serialize(builder);
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break;
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case Type::Bool:
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builder.append(m_value.as_bool ? "true" : "false");
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break;
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#if !defined(KERNEL)
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case Type::Double:
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builder.appendf("%g", m_value.as_double);
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break;
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#endif
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case Type::Int32:
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builder.appendff("{}", as_i32());
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break;
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case Type::Int64:
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builder.appendff("{}", as_i64());
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break;
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case Type::UnsignedInt32:
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builder.appendff("{}", as_u32());
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break;
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case Type::UnsignedInt64:
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builder.appendff("{}", as_u64());
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break;
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case Type::Null:
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builder.append("null");
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break;
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default:
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ASSERT_NOT_REACHED();
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}
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}
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template<typename Builder>
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inline typename Builder::OutputType JsonValue::serialized() const
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{
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Builder builder;
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serialize(builder);
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return builder.build();
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}
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}
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using AK::JsonObject;
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