protected bool ValidCompare(ExpressionValue expressionValue, ExpressionOperator op) { return(ExpressionOperators.Comparison.Contains(op) && CompatibleOperators.Contains(op)); }
protected bool ValidCombine(ExpressionValue expressionValue, ExpressionOperator op) { return(CompatibleTypes.Contains(expressionValue.ExpressionType) && CompatibleOperators.Contains(op)); }