Reorganise and test std::time
std::time is now broken up into two modules:
- std::time, which provides time related types.
- std::time::duration, which provides the Duration type.
This separation allows for the use of module methods to construct a Duration using different time units, instead of using methods defined on Duration itself. This means that instead of this:
import std::time::Duration
Duration.from_seconds(5)
You now write this:
import std::time::duration
duration.from_seconds(5)
== Renaming MonotonicTime to Instant
MonotonicTime has been renamed to "Instant", which is a bit shorter and much easier to type. A new method has been added as well: "elapsed". This method can be used to measure the time that has elapsed since the Instant was created.
== Adding and subtracting SystemTime and Instant
The methods + and - for SystemTime and Instant no longer accept a ToFloat, instead they require a Duration. Accepting a ToFloat would allow you to add a SystemTime to another SystemTime, or add an Instant to an Instant. Neither make sense, so instead we now require the use of a Duration. This means that instead of this:
import std::time
time.now + 5
You now have to write this:
import std::time
import std::time::duration
time.now + duration.from_seconds(5)
== Tests
Finally, both std::time and std::time::duration have tests. These tests uncovered a few bugs in the implementation of SystemTime, which have been resolved.