Add sync::watch::Sender::borrow
method
#3269
Merged
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Motivation
The
watch::Receiver
type has the borrow method, to borrow the value last sent.The
watch::Sender
also has access to this, but it isn't exposed. It would be nice to have this when passing around aSender
since it enables someone to check what has last been sent.Solution
I've added an identical
borrow
method tosync::watch::Sender
, along with some tests for the borrow method in general.