82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
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#ifndef RFL_PARSING_PARSER_ARRAY_HPP_
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#define RFL_PARSING_PARSER_ARRAY_HPP_
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#include <array>
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#include <map>
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#include <type_traits>
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#include <vector>
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#include "../Ref.hpp"
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#include "../Result.hpp"
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#include "../always_false.hpp"
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#include "ArrayReader.hpp"
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#include "Parent.hpp"
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#include "Parser_base.hpp"
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#include "schema/Type.hpp"
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namespace rfl {
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namespace parsing {
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template <class R, class W, class T, size_t _size, class ProcessorsType>
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requires AreReaderAndWriter<R, W, std::array<T, _size>>
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struct Parser<R, W, std::array<T, _size>, ProcessorsType> {
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public:
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using InputArrayType = typename R::InputArrayType;
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using InputVarType = typename R::InputVarType;
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using OutputArrayType = typename W::OutputArrayType;
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using OutputVarType = typename W::OutputVarType;
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using ParentType = Parent<W>;
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static Result<std::array<T, _size>> read(const R& _r,
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const InputVarType& _var) noexcept {
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const auto parse =
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[&](const InputArrayType& _arr) -> Result<std::array<T, _size>> {
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alignas(
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std::array<T, _size>) unsigned char buf[sizeof(std::array<T, _size>)];
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auto ptr = reinterpret_cast<std::array<T, _size>*>(buf);
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const auto array_reader =
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ArrayReader<R, W, ProcessorsType, T, _size>(&_r, ptr);
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auto err = _r.read_array(array_reader, _arr);
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if (err) {
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array_reader.call_destructors_where_necessary();
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return *err;
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}
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err = array_reader.check_size();
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if (err) {
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array_reader.call_destructors_where_necessary();
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return *err;
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}
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return std::move(*ptr);
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};
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return _r.to_array(_var).and_then(parse);
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}
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template <class P>
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static void write(const W& _w, const std::array<T, _size>& _arr,
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const P& _parent) noexcept {
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auto arr = ParentType::add_array(_w, _size, _parent);
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const auto new_parent = typename ParentType::Array{&arr};
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for (const auto& e : _arr) {
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Parser<R, W, std::remove_cvref_t<T>, ProcessorsType>::write(_w, e,
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new_parent);
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}
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_w.end_array(&arr);
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}
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static schema::Type to_schema(
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std::map<std::string, schema::Type>* _definitions) {
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using U = std::remove_cvref_t<T>;
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return schema::Type{schema::Type::FixedSizeTypedArray{
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.size_ = _size,
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.type_ = Ref<schema::Type>::make(
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Parser<R, W, U, ProcessorsType>::to_schema(_definitions))}};
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}
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};
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} // namespace parsing
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} // namespace rfl
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#endif
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