[Seaside] A new critical blog discussing Seaside -
mlucas-smith at cincom.com
Sat Apr 18 17:25:48 UTC 2009
You don't like "political correctness" which is fine, I don't like it
either.. I do though think there is a thing called politeness, which is
how I personally try to hamstring my communications.
What I'm seeing a lot of on your blog and on your posts here is your
personal opinion on certain engineering practices that you'retelling
other people to do. Do you realize that people don't like being told how
to think? There are many many "politically incorrect" words one can
apply to somebody who does that.
Anyway, my minor rant about your approach to communicating with people
aside, on the matter of direct instance variable access, my personal
development style, opinion and likes/dislikes lend toward using direct
instance variable access wherever possible.
For me, providing an accessor to a variable is like saying "this is not
my personal encapsulated state, it is something you can fiddle with".
That makes an accessor public API to me, so I won't create it unless I
really mean it.
The behavior of code on my class generally accesses the instance
variables directly for a few reasons:
a) Each object is its own "cell" (biology terms), it is already encapsulated
b) The object has no need to lie to itself (ie: have the accessor return
something other than the variable itself)
c) Sending 'self' to yourself is a tad psychotic at times. it's a bit
like type declarations in other programming languages.. how many times
do you want me to repeat myself exactly?
So there you have it. I don't agree with you - now you can vilify me
too. Have at it.
TheSmalltalkBlog at gmx.ch wrote:
> Thank you for these statements confirming my proposals:
>> It is a fact that many squeak codings usually access instance variables
>> directly, what makes some coding hard to read and to understand.
> It would be very simple to use accessor methods in Squeak and it's generally a good idea - not my (C) btw.
> I fully agree!
> So why aren't the Seaside authors willing to learn from such advice? Are these poults wiser than the hens? There was no argument brought up to justify this bad practice of direct instVar usage!
> More on: http://thesmalltalkblog.blogspot.com
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