// Copyright (c) 2018-2019 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/

#ifndef TAO_PEGTL_INTERNAL_PEEK_MASK_UINT8_HPP
#define TAO_PEGTL_INTERNAL_PEEK_MASK_UINT8_HPP

#include <cstddef>
#include <cstdint>

#include "../config.hpp"

#include "input_pair.hpp"

namespace tao
{
   namespace TAO_PEGTL_NAMESPACE
   {
      namespace internal
      {
         template< std::uint8_t M >
         struct peek_mask_uint8
         {
            using data_t = std::uint8_t;
            using pair_t = input_pair< std::uint8_t >;

            static constexpr std::size_t min_input_size = 1;
            static constexpr std::size_t max_input_size = 1;

            template< typename Input >
            static pair_t peek( const Input& in, const std::size_t /*unused*/ = 1 ) noexcept
            {
               return { std::uint8_t( in.peek_uint8() & M ), 1 };
            }
         };

      }  // namespace internal

   }  // namespace TAO_PEGTL_NAMESPACE

}  // namespace tao

#endif
