Interface Comparable
Interface summary
| compare-to other/Comparable -> any | Compares this object to the other. |
|---|---|
| compare-to other/Comparable [--if-equal] -> any |
Methods
Compares this object to the other.
Returns 1 if this is greater than the other.
Returns 0 if this is equal to the other.
Returns -1 if this is less than the other.
Inheritance
Subclasses may tighten the other's type so it is the same as this class.
Calls if-equal if this and other are equal. Then returns the result of the call.
Examples
In the example,
MyTime implements a lexicographical ordering of seconds and nanoseconds using compare-to other [--if-equal] to move on to nanoseconds when the seconds component is equal.
class MyTime:
seconds/int
nanoseconds/int
constructor .seconds .nanoseconds:
compare-to other/MyTime -> int:
return seconds.compare-to other.seconds --if-equal=:
nanoseconds.compare-to other.nanoseconds