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Re: KeyValueCoding compatibility issues
From: |
David Ayers |
Subject: |
Re: KeyValueCoding compatibility issues |
Date: |
Thu, 29 Nov 2007 21:55:54 +0100 |
User-agent: |
Mozilla Thunderbird 1.0.2 (X11/20070113) |
Hello Markus,
Marcus Müller schrieb:
> KVC compatibility is badly broken in several situations, where
> subclasses usually override specific methods, but the calling API was
> partly ported to use the new-style KVC, i.e. -takeValue:forKey: is
> somehow mixed with -setValue:forKey:. Usually, this happens when you
> port an application to the new API but some underlying framework has
> yet to be ported... the result is something which doesn't work properly
> at all.
>
> Attached, find a patch that fixes all these problems. As an added
> bonus, all compatibility code is prepared for exclusion from
> compilation, making it very easy to actually migrate to the new-style
> KVC completely. All compatibility workarounds will then be excluded as
> well, making KVC a bit faster altogether.
I don't necessarily like #ifdef's as you mention there are some apps
which expect set of semantics while others expect the other set, but
there will generally be only one -base installed (per library combo).
(This is why GDL2 replaces the implementations during +load)
I'm also interested into which concrete version of KVC this is supposed
to be compatible with. The reason I ask, is that if this matches WO45,
I may consider implementing these semantics as categories in GDL2.
Maybe we should create a micro KVCvX Framework/Library/Bundle that
implements these categories when loaded without burdening -base. And
I'd have GDL2 depend on that (or dynamically load that bundle though
that might be too late for some cases).
Cheers,
David
- Re: KeyValueCoding compatibility issues, (continued)
- Re: KeyValueCoding compatibility issues, Richard Frith-Macdonald, 2007/11/30
- Re: KeyValueCoding compatibility issues, David Ayers, 2007/11/30
- Re: KeyValueCoding compatibility issues, Richard Frith-Macdonald, 2007/11/30
- Re: KeyValueCoding compatibility issues, Marcus Müller, 2007/11/30
- Message not available
- Re: KeyValueCoding compatibility issues, David Ayers, 2007/11/30
Re: KeyValueCoding compatibility issues,
David Ayers <=