draconisplusplus/include/rfl/toml/read.hpp

#ifndef RFL_TOML_READ_HPP_
#define RFL_TOML_READ_HPP_

#include <istream>
#include <string>
#include <toml++/toml.hpp>

#include "../Processors.hpp"
#include "../internal/wrap_in_rfl_array_t.hpp"
#include "Parser.hpp"
#include "Reader.hpp"

namespace rfl::toml {

  using InputVarType = typename Reader::InputVarType;

  /// Parses an object from a TOML var.
  template <class T, class... Ps>
  auto read(InputVarType _var) {
    const auto r = Reader();
    return Parser<T, Processors<Ps...>>::read(r, _var);
  }

  /// Parses an object from TOML using reflection.
  template <class T, class... Ps>
  Result<internal::wrap_in_rfl_array_t<T>> read(const std::string& _toml_str) {
    auto table = ::toml::parse(_toml_str);
    return read<T, Ps...>(&table);
  }

  /// Parses an object from a stringstream.
  template <class T, class... Ps>
  auto read(std::istream& _stream) {
    const auto toml_str = std::string(
        std::istreambuf_iterator<char>(_stream),
        std::istreambuf_iterator<char>()
    );
    return read<T, Ps...>(toml_str);
  }

} // namespace rfl::toml

#endif