#ifndef PFOR_PFOR_EXPRESSION_ASEXPRESSION_H
#define PFOR_PFOR_EXPRESSION_ASEXPRESSION_H

#include "expression.h"

namespace pfor {
namespace expr {

/**
 * @brief turn into Expression if not already one
 */
template<typename, typename=void> struct AsExpressionImpl;

template<typename T>
struct AsExpressionImpl<T, std::enable_if_t<isExpression<T>>> {
	using type = T;
};

template<typename T>
struct AsExpressionImpl<T, std::enable_if_t<not isExpression<T>>> {
	using type = Constant<T>;
};

template<typename T>
using AsExpression = typename AsExpressionImpl<T>::type;

}

template<typename T>
expr::AsExpression<std::decay_t<T>> xpr(T&& v) {
	return {std::forward<T>(v)};
}

}

#endif