public static Expression MakeFunction(ParameterExpression message, string functionName, List <Expression> arguments)
{
if (string.Equals(functionName, "NEWID", StringComparison.OrdinalIgnoreCase))
{
if (arguments.Count != 0)
{
throw new ArgumentException(SRClient.FilterFunctionIncorrectNumberOfArguments(functionName, 0, arguments.Count), "arguments");
}
return(Expression.Call(Constants.NewGuid, new Expression[0]));
}
if (!string.Equals(functionName, "P", StringComparison.OrdinalIgnoreCase) && !string.Equals(functionName, "Property", StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException(SRClient.FilterUnknownFunctionName(functionName));
}
if (arguments.Count != 1)
{
throw new ArgumentException(SRClient.FilterFunctionIncorrectNumberOfArguments(functionName, 1, arguments.Count), "arguments");
}
Expression expression = Expression.Constant(PropertyScope.User);
return(new GetPropertyExpression(message, expression, arguments[0]));
}
