public static DefinableFxUnaryOperator EvaluateOperator(
this UnarySelector operatorSelector)
{
var res = operatorSelector.Invoke(UnaryArgument).Operator;
return(res);
}
public static Func <Flexpression, Flexpression> GetOperatorDefinitionOrNull(
this IReadOnlyDictionary <DefinableFxUnaryOperator, Func <Flexpression, Flexpression> > source,
UnarySelector operatorSelector)
{
return(source.TryGetValue(operatorSelector.EvaluateOperator(), out var value) ? value : null);
}