Add g to the end of the buffer.
Remove g from the buffer if it is there.
Remove g from the buffer if it is there. Otherwise,
do nothing.
Apply the buffered functions to the value t in the order
that they appear in the buffer.
Apply the buffered functions to the value t in the order
that they appear in the buffer. Return the value of the first
such function that is defined at t. If no function is
defined at t, throw a MatchError exception.
Is there a function in the buffer that is defined at t?
Is there a function in the buffer that is defined at t?
A partial function composed of an ordered, mutable buffer of PartialFunction instances.
fis the iniital single occupant of the buffer.