Hello there,
I am writing some code (priority queues) that uses a :key argument to
extract information from some structure. The value passed as a :key
argument is always funcalled within the code. At a certain point I
need to actually 'setf' the structure slot 'keyed' by the :key value.
I.e. I have code that looks like
(defun maximize (x &key (key an-x-accessor))
...
(funcall an-x-accessor x)
)
and I want to be able to do something like
(defun do-maximize (x &key (key an-x-accessor))
...
(setf (an-x-accessor x) somevalue)
)
I checked CLtL2, but I couldn't come up with anything reasonable. I
have a hunch that it is not possible.
Any idea?
Marco