From: John Carter <john.carter@...>
Date: 2002-11-11T12:58:25+09:00
Subject: Re: [ANN] observable

On Mon, 11 Nov 2002, Joel VanderWerf wrote:

> Hello, "observable.rb" is a variation on the observer pattern. 

You know the "goto" statement? People didn't like it. It made trying to 
work out how you got there a bit difficult.

Well the observer pattern is a bit like a "come-from" statement. 

I can assure you from personal experience that in a big system it can lead
to some very elusive and weird bugs. Especially when a notify can trigger
notifies one or more of which can trigger notifies one or more of which...

Man! Your the flow of control logic can get _very_ tangled!

Take care and good luck!

-- 


John Carter                             Phone : (64)(3) 358 6639
Tait Electronics                        Fax   : (64)(3) 359 4632
PO Box 1645 Christchurch                Email : john.carter@tait.co.nz
New Zealand

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