feat(reflect-cpp): Switched from glaze -> reflect cpp
A bug was discovered in glaze which prevented valid toml output. We have switched to toml++ and reflect-cpp. The interface has remained the same so this should not break any code
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#ifndef RFL_PARSING_VIEWREADERWITHDEFAULTANDSTRIPPEDFIELDNAMES_HPP_
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#define RFL_PARSING_VIEWREADERWITHDEFAULTANDSTRIPPEDFIELDNAMES_HPP_
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#include <optional>
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#include <sstream>
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#include <type_traits>
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#include <utility>
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#include <vector>
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#include "../Result.hpp"
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#include "../Tuple.hpp"
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#include "../internal/is_array.hpp"
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#include "Parser_base.hpp"
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namespace rfl::parsing {
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template <class R, class W, class ViewType, class ProcessorsType>
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class ViewReaderWithDefaultAndStrippedFieldNames {
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private:
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using InputVarType = typename R::InputVarType;
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static constexpr size_t size_ = ViewType::size();
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public:
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ViewReaderWithDefaultAndStrippedFieldNames(const R* _r, ViewType* _view,
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std::vector<Error>* _errors)
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: i_(0), r_(_r), view_(_view), errors_(_errors) {}
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~ViewReaderWithDefaultAndStrippedFieldNames() = default;
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std::array<bool, size_> found() const {
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std::array<bool, size_> f;
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std::fill(f.begin(), f.begin() + i_, true);
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std::fill(f.begin() + i_, f.end(), false);
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return f;
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}
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/// Assigns the parsed version of _var to the field signified by i_, to be
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/// used when the field names are stripped.
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std::optional<Error> read(const InputVarType& _var) const {
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if (i_ == size_) {
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std::stringstream stream;
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stream << "Expected a maximum of " << std::to_string(size_)
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<< " fields, but got at least one more.";
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return Error(stream.str());
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}
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assign_to_field_i(*r_, _var, view_, errors_, i_,
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std::make_integer_sequence<int, size_>());
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++i_;
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return std::nullopt;
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}
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private:
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template <int i>
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static void assign_if_field_is_field_i(const R& _r, const auto& _var,
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auto* _view, auto* _errors, int _i) {
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using FieldType = tuple_element_t<i, typename ViewType::Fields>;
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using OriginalType = typename FieldType::Type;
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using T =
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std::remove_cvref_t<std::remove_pointer_t<typename FieldType::Type>>;
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constexpr auto name = FieldType::name();
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if (_i == i) {
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auto res = Parser<R, W, T, ProcessorsType>::read(_r, _var);
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if (!res) {
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std::stringstream stream;
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stream << "Failed to parse field '" << std::string(name)
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<< "': " << res.error().what();
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_errors->emplace_back(Error(stream.str()));
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return;
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}
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if constexpr (std::is_pointer_v<OriginalType>) {
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move_to(rfl::get<i>(*_view), &(*res));
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} else {
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rfl::get<i>(*_view) = std::move(*res);
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}
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}
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}
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template <int... is>
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static void assign_to_field_i(const R& _r, const auto& _var, auto* _view,
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auto* _errors, int _i,
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std::integer_sequence<int, is...>) {
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(assign_if_field_is_field_i<is>(_r, _var, _view, _errors, _i), ...);
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}
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// TODO: Unnecessary code duplication.
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template <class Target, class Source>
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static void move_to(Target* _t, Source* _s) {
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if constexpr (std::is_const_v<Target>) {
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return move_to(const_cast<std::remove_const_t<Target>*>(_t), _s);
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} else if constexpr (!rfl::internal::is_array_v<Source> &&
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!std::is_array_v<Target>) {
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*_t = Target(std::move(*_s));
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} else if constexpr (rfl::internal::is_array_v<Source>) {
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static_assert(std::is_array_v<Target>,
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"Expected target to be a c-array.");
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for (size_t i = 0; i < _s->arr_.size(); ++i) {
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move_to(&((*_t)[i]), &(_s->arr_[i]));
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}
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} else {
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for (size_t i = 0; i < _s->size(); ++i) {
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move_to(&((*_t)[i]), &((*_s)[i]));
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}
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}
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}
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private:
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/// Indicates the current field.
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mutable int i_;
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/// The underlying reader.
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const R* r_;
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/// The underlying view.
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ViewType* view_;
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/// Collects any errors we may have come across.
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std::vector<Error>* errors_;
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};
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} // namespace rfl::parsing
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#endif
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