Well, certainly Revolution is OO-like, but it's hard for me coming
from a strong OOD/OOP background to see it as a legitimate OO
offering. The number one rule of encapsulation seems "broken" most
of the time in xtalk-like languages. When I have multiple buttons on
a card that have the same behavior, instead of each button being an
instance of a single behavior template, the behavior is often
divorced from the very object(s) it is meant to work with, in favor
of residing at a "higher" level in the message hierarchy. Not only
does this lead to "where is that piece of code?", but object
reusability suffers, and measurably hurting code maintainability as
well. At best I can have libraries of stand-alone code segments, not
behavior and data wedded in structure. Further, the "objects" in
Revolution often suffer from being tightly coupled, usually the sign
of bad OOD, but in this case it is also a side effect of the reduced
set of actual objects (fields, buttons, cards, etc.) that are
available. However, I'm always surprised by what I can pull off with
this product; a credit to it's ability to use it's own structures in
non-traditional means! :)
Well, I kept out of this discussion so far, but this post stroke a chord.
May be instead of discussing dot notation virtues versus purity of
Transcript, the thing to discuss first should be what true OO would
bring to Revolution. In other words, what is missing in Rev from OO
paradigm that would truly benefit MAJORITY of Rev users? Do we really
need full OO stuff? May be the current pseudo-OO with some new parent
type object and some construct parallel to get/setprop for functions
can suffice.
Having OO stuff just for the sake of having (that is marketing) is
pointless in my mind since IMHO Rev will never (at least not soon)
compete directly against C++/Obj-C and others in enterprise or
commercial development. Among its winning aspects are RAD features
and ease of cross-platform deployment, but IMHO it is not
particularly suitable for development done by larger teams, so some
of advertised OO advantages are sort of moot.
Robert
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