A subtle difference between a map of functions and a Python class is that
the class has implicit "self" or "this". Otherwise, these are semantically
the same. Well, ignoring that Clojure maps are immutable.
In fact, C++ compilers compile methods by inserting a first "this" argument
and mangling the name. Virtual methods (ones which can be overridden) are
collected into what is effectively a map attached to the instance.
On Tue, Mar 31, 2020 at 4:41 AM Dieter Van Eessen <
dieter.van.ees...@gmail.com> wrote:
> Hello,
>
> I've got a clojure and a python piece of code. Both seem to create what
> can be considered an instance of a class. Wherein lies the conceptual
> difference?
>
> Python:
> class MYCLASS():
> def __init__(self, x):
> self.x = x
> def MYMETHOD(self):
> ...
>
> def MYFUNCTION():
> lol = MYCLASS()
>
> Clojure:
> (defn MYCLASS [x]
> {:x [x]
> :MYMETHOD (fn [] (MYCLASS ...))})
>
> (let [lol (MYCLASS ...)])
>
> I know its not valid code, but I hope you see what I'm aiming at: isn't
> using a map with functions in it just the same as a class?
> Or is only the user interface of the language conceptually equal, while
> the underlying plumbing is completely different?
> If this is the case, wherein lies the major differences?
>
> If one could simply point me in the right direction, I'd already be very
> pleased. Most literature I've read so far only explains clojure can be used
> this way, but never focuses deeper on the subject.
>
> kind regards,
> Dieter
>
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