geode/codegen/Broma/PEGTL-3.2.7/include/tao/pegtl/internal/apply_single.hpp
2022-07-30 19:24:03 +03:00

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1.1 KiB
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// Copyright (c) 2017-2022 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
#ifndef TAO_PEGTL_INTERNAL_APPLY_SINGLE_HPP
#define TAO_PEGTL_INTERNAL_APPLY_SINGLE_HPP
#include "../config.hpp"
#include <type_traits>
namespace TAO_PEGTL_NAMESPACE::internal
{
template< typename Action >
struct apply_single
{
template< typename ActionInput, typename... States >
[[nodiscard]] static auto match( const ActionInput& in, States&&... st ) noexcept( noexcept( Action::apply( in, st... ) ) )
-> std::enable_if_t< std::is_same_v< decltype( Action::apply( in, st... ) ), void >, bool >
{
Action::apply( in, st... );
return true;
}
template< typename ActionInput, typename... States >
[[nodiscard]] static auto match( const ActionInput& in, States&&... st ) noexcept( noexcept( Action::apply( in, st... ) ) )
-> std::enable_if_t< std::is_same_v< decltype( Action::apply( in, st... ) ), bool >, bool >
{
return Action::apply( in, st... );
}
};
} // namespace TAO_PEGTL_NAMESPACE::internal
#endif