"CPS::Future" - compatibility wrapper around Future
This module provides a compatibility wrapper around Future. The code it used to
contain was renamed to move it out of the "CPS" distribution.
Existing code that refers to "CPS::Future" should be changed to use
This subclass overloads the calling operator, so simply invoking the future
object itself as if it were a "CODE" reference is equivalent to
calling the "done" method. This makes it simple to pass as a
callback function to other code.
It turns out however, that this behaviour is too subtle and can lead to bugs
when futures are accidentally used as plain "CODE" references. See
the "done_cb" method instead. This overload behaviour will be
removed in a later version.