[REBOL] object method binding
From: media::quazart::com at: 8-Nov-2001 9:52
a question for context/binding experts
how do I re-define a method'd function so that it uses a variable defined in
the original function but which does not access data within the object
itself, and which its binding is unknown?
I know of the existence of the following object:
weird: make object! [
weird-func: func [
the problems is:
Because the code was built within a dynamic loop, at the time of creation,
WAS defined so rebol linked (or bound?) that word to
whatever it meant at that time. but as you see, it does not reference a
value within weird itself but rather a value that it linked outside of
weird, so somehow its still valid, but we do not know exactly what
external-variable "points" to...
Now the question:
how can I replace the weird method to another function but still use the
original's external-variable value...
like if I wanted to do
print ["I have extended" external-variable my-extension]
... of course the above WILL fail ...
in the context of this problem, there is simply no way to trap the original
definition of weird, so that I can create a global to re-assign
external-value in my own function...
ain't context and binding fun!!?
Thanks in advance!