Module clock

A configurable source of time.

This module provides an API to get the current instant in such a way that the source of time may be configured. This allows mocking out the source of time in tests.

The now function returns the current Instant. By default, it delegates to Instant::now.

The source of time used by now can be configured by implementing the Now trait and passing an instance to with_default.

Structs

• Clock
  A handle to a source of time.
• DefaultGuard
  A guard that resets the current Clock to None when dropped.

Traits

• Now
  Returns Instant values representing the current instant in time.

Functions

• now
  Returns an Instant corresponding to “now”.
• set_default
  Sets clock as the default clock, returning a guard that unsets it on drop.
• with_default
  Set the default clock for the duration of the closure.