In reply to everyone so far - I considered the 'Define an abstract class'
approach, but it does not acheive what I want as I still have to set its
type when I reference it. My real world example that follows should clarify
the situation a bit :
One functions as a list of the other and is currently a TList, so I end up
doing things like this:
TNeuron(Neuron.LinkedNeuron[i]).Fire;
Other classes also contain a TList of neurons and I end up doing things like
TNeuron(SomeOtherObject.LinkedNeuron[i]).Fire;
I want to inherit from the TList and create my own default array property
like:
property Neuron[iIndex : integer] : TNeuron read GetNeuron write SetNeuron;
default;
And later add some searching behaviour. This means that I can stop typing
the TObject returned from the TList:
Neuron.LinkedNeuron[i].Fire;
Makes my code easier to read etc... Basiclly I got annoyed with having to
set its type all the time. :-) Yes I could read it into a var and then use
the var, I even do that where possible. But there is a signifigant number
of places where that would clutter up the code more. So I thought I would
get the list to return the right type rather than TObject as TList does.
Nope its not a very reusable concept, but its not designed to be.
Nahum
-----Original Message-----
From: Kerry Sainsbury [mailto:[EMAIL PROTECTED]]
Sent: Thursday, 19 August 1999 09:05
To: Multiple recipients of list delphi
Subject: Re: [DUG]: Circular unit references - gotta love'm!
--- Nahum Wild <[EMAIL PROTECTED]> wrote:
> Does anyone know how to get around the following issue where I have
> two
> different classes that each contain a reference to the other in their
> definition, the problem being that I want them in different units.
> As
> predicted delphi spits a 'circular reference' error at me. :s(
My honest answer would be to suggest that you shouldn't write code like
that :-) You don't want to create such dependencys between your classes
-- it makes reuse too tricky.
What's your real-world example? Perhaps we can think of a more elegant
solution to the problem.
===
Cheers,
Kerry S
-- Systems Engineer, Inprise NZ. [EMAIL PROTECTED]
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