Re: What does "lacks a prefix" mean?

[Emanuel Berg]

Yuri Khan <yuri.v.khan@gmail.com> writes:

> Variable dependencies start to matter a lot when
> you’re trying to refactor code — e.g. to extract
> part of a function into a new function of its own.
> In this case, variables shared by the code that
> stays and the code that moves out are a source of
> complexity, and their number may be a factor in
> deciding which refactoring the code actually wants.

If you are to muck around with old code, which seldom
is a good idea but sometimes necessary (?), then doing
so will be helped to an unfathomable degree if the
"let* style" has been applied when the code was
originally written, as computation is stepwise
performed and each step is named and put neatly into
a nice looking column!

It is, on the contrary, the "let style" with

    (let ((entity (computation_1 (computation_2 ( ... )))))
       ... )

which is much more difficult to write, not to mention
read, debug, and later maintain and modify.

"Variable dependencies" is all schoolbook stuff -
forget about it, the sooner the better, because it
doesn't work like that. It doesn't increase
"complexity", whatever that is.

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underground experts united
http://user.it.uu.se/~embe8573