param_setter.h

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// Copyright (c) 2018, Smart Projects Holdings Ltd
// All rights reserved.
// See LICENSE file for license details.

#ifndef _UGCS_VSM_PARAM_SETTER_H_
#define _UGCS_VSM_PARAM_SETTER_H_

#include <ugcs/vsm/callback.h>

namespace ugcs {
namespace vsm {

namespace param_setter_internal {

template <typename... Params>
class Param_setter {
public:
    Param_setter(Params &... params):
        params(params...)
    {}

    void
    operator()(Params... values)
    {
        params = std::tuple<Params...>(values...);
    }

private:
    std::tuple<typename std::add_lvalue_reference<Params>::type...> params;
};

} /* namespace param_setter_internal */

template <typename... Params>
typename Callback<param_setter_internal::Param_setter<Params...>, void, Params...>::Ptr
Make_setter(Params &... params)
{
    return Make_callback(param_setter_internal::Param_setter<Params...>(params...),
                         Params()...);
}

} /* namespace vsm */
} /* namespace ugcs */

#endif /* _UGCS_VSM_PARAM_SETTER_H_ */