virtual override Int compare(Obj that)

Ordering is based on timestamp.

virtual override Void each(|Obj,Str| f)

virtual override Obj? eachWhile(|Obj,Str->Obj?| f)

virtual override Bool equals(Obj? that)

Equality is based on timestamp and value.

@Operator
virtual override Obj? get(Str name, Obj? def := null)

virtual override Bool has(Str name)

virtual override Int hash()

Hash code is based on timestamp and value.

virtual override Bool isEmpty()

new make(DateTime ts, Obj? val)

Construct timestamp/value pair.

virtual override Bool missing(Str name)

const DateTime ts

Timestamp of the history record.

const Obj? val

Value at the timestamp.