Enum Constant 

pub enum Constant {
    Int(i64),
    UInt(u64),
    Number(f64),
    Decimal(Decimal),
    String(String),
    Char(char),
    Bool(bool),
    Null,
    Unit,
    Function(u16),
    Timeframe(Timeframe),
    Duration(Duration),
    TimeReference(TimeReference),
    DateTimeExpr(DateTimeExpr),
    DataDateTimeRef(DataDateTimeRef),
    TypeAnnotation(TypeAnnotation),
    Value(ValueWord),
}

Constants in the constant pool

Variants

Int(i64)

UInt(u64)

Unsigned 64-bit integer (for u64 values > i64::MAX)

Number(f64)

Decimal(Decimal)

Decimal type for exact arithmetic (finance, currency)

String(String)

Char(char)

Bool(bool)

Null

Unit

Function(u16)

Timeframe(Timeframe)

Duration(Duration)

TimeReference(TimeReference)

DateTimeExpr(DateTimeExpr)

DataDateTimeRef(DataDateTimeRef)

TypeAnnotation(TypeAnnotation)

Value(ValueWord)

Opaque runtime value (not serializable — used for host-injected constants like RowView, DataTable, etc.)

Trait Implementations

impl Clone for Constant

fn clone(&self) -> Constant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Constant

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Constant

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Constant

fn eq(&self, other: &Constant) -> 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 Serialize for Constant

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Constant