d398a6ced2
- CitrineOS core extracted (CSMS OCPP 2.0.1) - OpenOCPP extracted (firmware OCPP 1.6J/2.0.1) - ShapeShifter library installed (pip install -e) - ShapeShifter specification extracted - EVerest extracted TODO updated with progress
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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// Copyright 2023 Pionix GmbH and Contributors to EVerest
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#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <stdexcept>
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#include <string>
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// FIXME (aw): we only need the payload types from sdp.hpp, this could be shared in a separate header file
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#include <iso15118/io/sdp.hpp>
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#include <iso15118/io/stream_view.hpp>
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#include "type.hpp"
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namespace iso15118::message_20 {
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class Variant {
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public:
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using CustomDeleter = void (*)(void*);
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Variant(io::v2gtp::PayloadType, const io::StreamInputView&);
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template <typename MessageType> Variant(const MessageType& in) {
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static_assert(TypeTrait<MessageType>::type != Type::None, "Unhandled type!");
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data = new MessageType;
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*static_cast<MessageType*>(data) = in;
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custom_deleter = [](void* ptr) { delete static_cast<MessageType*>(ptr); };
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type = message_20::TypeTrait<MessageType>::type;
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}
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~Variant();
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Type get_type() const;
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const std::string& get_error() const;
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template <typename T> const T& get() const {
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static_assert(TypeTrait<T>::type != Type::None, "Unhandled type!");
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if (TypeTrait<T>::type != type) {
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throw std::runtime_error("Illegal message type access");
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}
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return *static_cast<T*>(data);
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}
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template <typename T> T const* get_if() const {
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static_assert(TypeTrait<T>::type != Type::None, "Unhandled type!");
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if (TypeTrait<T>::type != type) {
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return nullptr;
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}
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return static_cast<T*>(data);
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}
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private:
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CustomDeleter custom_deleter{nullptr};
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void* data{nullptr};
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Type type{Type::None};
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std::string error;
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};
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} // namespace iso15118::message_20
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