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This will make it easier to support both string types at the same time while we convert code, and tracking down remaining uses. One big exception is Value::to_string() in LibJS, where the name is dictated by the ToString AO.
249 lines
6.4 KiB
C++
249 lines
6.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Max Wipfli <mail@maxwipfli.ch>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Concepts.h>
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#include <AK/DeprecatedString.h>
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#include <AK/Error.h>
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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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namespace AK {
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class JsonObject {
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template<typename Callback>
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using CallbackErrorType = decltype(declval<Callback>()(declval<DeprecatedString const&>(), declval<JsonValue const&>()).release_error());
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public:
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JsonObject() = default;
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~JsonObject() = default;
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JsonObject(JsonObject const& other)
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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_members(move(other.m_members))
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{
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}
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JsonObject& operator=(JsonObject const& 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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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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return *this;
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}
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[[nodiscard]] size_t size() const { return m_members.size(); }
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[[nodiscard]] bool is_empty() const { return m_members.is_empty(); }
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[[nodiscard]] JsonValue const& get(StringView key) const
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{
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auto const* value = get_ptr(key);
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static JsonValue* s_null_value { nullptr };
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if (!value) {
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if (!s_null_value)
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s_null_value = new JsonValue;
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return *s_null_value;
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}
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return *value;
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}
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[[nodiscard]] JsonValue const* get_ptr(StringView 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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[[nodiscard]] [[nodiscard]] bool has(StringView key) const
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{
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return m_members.contains(key);
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}
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[[nodiscard]] bool has_null(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_null();
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}
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[[nodiscard]] bool has_bool(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_bool();
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}
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[[nodiscard]] bool has_string(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_string();
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}
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[[nodiscard]] bool has_i32(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_i32();
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}
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[[nodiscard]] bool has_u32(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_u32();
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}
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[[nodiscard]] bool has_i64(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_i64();
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}
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[[nodiscard]] bool has_u64(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_u64();
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}
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[[nodiscard]] bool has_number(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_number();
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}
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[[nodiscard]] bool has_array(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_array();
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}
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[[nodiscard]] bool has_object(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_object();
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}
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#ifndef KERNEL
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[[nodiscard]] [[nodiscard]] bool has_double(StringView key) const
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{
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auto const* value = get_ptr(key);
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return value && value->is_double();
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}
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#endif
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void set(DeprecatedString const& key, JsonValue value)
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{
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m_members.set(key, move(value));
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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 (auto const& member : m_members)
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callback(member.key, member.value);
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}
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template<FallibleFunction<DeprecatedString const&, JsonValue const&> Callback>
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ErrorOr<void, CallbackErrorType<Callback>> try_for_each_member(Callback&& callback) const
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{
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for (auto const& member : m_members)
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TRY(callback(member.key, member.value));
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return {};
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}
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bool remove(StringView key)
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{
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return m_members.remove(key);
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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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[[nodiscard]] DeprecatedString to_deprecated_string() const { return serialized<StringBuilder>(); }
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private:
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OrderedHashMap<DeprecatedString, 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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auto serializer = MUST(JsonObjectSerializer<>::try_create(builder));
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for_each_member([&](auto& key, auto& value) {
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MUST(serializer.add(key, value));
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});
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MUST(serializer.finish());
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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"sv : "false"sv);
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break;
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#if !defined(KERNEL)
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case Type::Double:
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builder.appendff("{}", 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"sv);
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break;
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default:
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VERIFY_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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#if USING_AK_GLOBALLY
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using AK::JsonObject;
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#endif
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