56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#ifndef RFL_PARSING_CUSTOMPARSER_HPP_
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#define RFL_PARSING_CUSTOMPARSER_HPP_
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#include <exception>
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#include <tuple>
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#include "../internal/has_to_class_method_v.hpp"
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#include "../internal/to_ptr_field_tuple.hpp"
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#include "Parser.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 ProcessorsType, class OriginalClass,
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class HelperStruct>
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struct CustomParser {
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static Result<OriginalClass> read(const R& _r, const auto& _var) noexcept {
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const auto to_class = [](auto&& _h) -> Result<OriginalClass> {
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try {
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if constexpr (internal::has_to_class_method_v<HelperStruct>) {
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return _h.to_class();
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} else {
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auto ptr_field_tuple = internal::to_ptr_field_tuple(_h);
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const auto class_from_ptrs = [](auto&... _ptrs) {
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return OriginalClass(std::move(*_ptrs.value_)...);
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};
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return std::apply(class_from_ptrs, ptr_field_tuple);
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}
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} catch (std::exception& e) {
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return Error(e.what());
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}
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};
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return Parser<R, W, HelperStruct, ProcessorsType>::read(_r, _var).and_then(
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to_class);
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}
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template <class P>
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static auto write(const W& _w, const OriginalClass& _p,
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const P& _parent) noexcept {
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Parser<R, W, HelperStruct, ProcessorsType>::write(
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_w, HelperStruct::from_class(_p), _parent);
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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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return Parser<R, W, std::remove_cvref_t<HelperStruct>,
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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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