Enum SpecialFnKind 

pub enum SpecialFnKind {
    Aggregation(AggregationFn),
    TypeConversion(TypeConversionFn),
    TimeScaleConversion(TimeScale),
    Constructor(ConstructorFn),
    DatetimeExtract(DatetimeExtractFn),
    DatetimeFrom(DatetimeFromFn),
    DatetimeTo(DatetimeToFn),
}

Classification of special built-in functions.

Each variant carries a sub-enum identifying the specific function, so downstream handlers can match on typed variants instead of raw strings.

Variants

Aggregation(AggregationFn)

Aggregation functions: sum, min, max, mean, count.

TypeConversion(TypeConversionFn)

Type conversion functions: to_float, to_int.

TimeScaleConversion(TimeScale)

Time-scale conversion functions: to_utc, to_tai, etc.

Constructor(ConstructorFn)

Constructor functions: datetime, epoch.

DatetimeExtract(DatetimeExtractFn)

Datetime extraction functions: year, month, day, etc.

DatetimeFrom(DatetimeFromFn)

Datetime-from-numeric functions: from_jd, from_mjd, from_unix.

DatetimeTo(DatetimeToFn)

Datetime-to-numeric functions: to_jd, to_mjd, to_unix.

Trait Implementations

impl Clone for SpecialFnKind

fn clone(&self) -> SpecialFnKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SpecialFnKind

impl Debug for SpecialFnKind

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

Formats the value using the given formatter.

impl Eq for SpecialFnKind

impl PartialEq for SpecialFnKind

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SpecialFnKind