| pausables {async} | R Documentation |
Pausable functions.
Description
Coroutines rely on "pausable" workalikes for control flow functions
like if, while, and so on. pausables() scans for and returns
a list of all pausable functions visible from the present
environment.
Usage
pausables(envir = caller(), packages = NULL)
Arguments
envir |
The environment to search (defaulting to the calling environment). |
packages |
By default, will only look for pausable functions
visible from the caller's environment. |
Details
A pausable function is a public function that has a corresponding
private function with a name endng with _cps. Most of these
private functions are defined in async source file cps.r. For
instance, async:::for_cps contains the pausable implementation of
for.
Value
A list of expressions (either names or ::: calls)