Enum ScalarError 

pub enum ScalarError {
    NeedsDimensions(String),
    UnknownFunction(FuncId),
    Arity {
        func: FuncId,
        want: String,
        got: usize,
    },
}

Why a formula cannot be evaluated as a scalar.

Variants

NeedsDimensions(String)

An aggregation or a dimension projection: these range over categories, and a scalar evaluation has none.

UnknownFunction(FuncId)

A function id that is neither a scalar built-in nor an aggregation.

Arity

A built-in called with the wrong number of arguments.

Fields

func: FuncId

want: String

got: usize

Trait Implementations

impl Clone for ScalarError

fn clone(&self) -> ScalarError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScalarError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ScalarError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ScalarError

impl Error for ScalarError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for ScalarError

fn eq(&self, other: &ScalarError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ScalarError