Expression.h

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#ifndef CHRYSALIS_EXPRESSION_H
#define CHRYSALIS_EXPRESSION_H
 
#include "BaseNamedElement.h"
#include "ScopedNamedElementsContainer.h"
#include "arguments/BaseCalculatedArgument.h"
 
namespace Chrysalis {
    struct ExpressionValue {
        explicit operator double() const;
        double value;
    };
    class Expression: public BaseNamedElement, public BaseCalculatedArgument<ExpressionValue> {
        PROVIDE_DEFAULT_SERIALIZATION_ACCESS(Expression)
        SERIALIZE_DERIVED_FROM(BaseNamedElement, expression_)
    public:
        explicit Expression(const std::string& name, args::number&& expression);
    protected:
        std::expected<ExpressionValue, Error> calculate() const override;
    private:
        args::number expression_;
    };
    using ExpressionsContainer = ScopedNamedElementsContainer<Expression>;
}
 
#endif //CHRYSALIS_EXPRESSION_H