internal Func <double[], double> ToFunctionStrategy()
{
var types = typeof(FunctionStrategies)
.GetFields(BindingFlags.Static | BindingFlags.Public);
var functions = new List <Func <double[], double> >();
foreach (var functionName in FunctionNames)
{
foreach (var type in types)
{
if (type.Name.Equals(functionName, StringComparison.OrdinalIgnoreCase))
{
functions.Add((Func <double[], double>)type.GetValue(null));
break;
}
}
}
if (functions.Count != FunctionNames.Count())
{
throw new ArgumentException(nameof(FunctionNames));
}
if (functions.Count == 1)
{
return(functions.Single());
}
return(GetMultifunctionStrategy(functions.ToArray()));
}