Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!)
Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!)
- Subject: Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!)
- From: Marcel Weiher <email@hidden>
- Date: Mon, 7 Jun 2004 00:58:55 +0100
On 6 Jun 2004, at 16:02, Ondra Cada wrote:
Marcel,
On 6.6.2004, at 14:57, Marcel Weiher wrote:
I am saying you *cannot* redesign NSArray to adhere fully to be-value
semantics because of the nature of Objective-C. Any attempt to do so
will, by necessity, be incomplete, and quite probably rather useless.
I would say namely property lists are (a) very much useable, (b)
reasonably complete, (c) considerably more on the the value-based
semantics side than ref-based one.
What am I missing in that?
Homework assignment: compare and contrast, Objective-C vs. Property
Lists
There are various subsets of Objective-C for which you can make
different semantics work. For example, value semantics are completely
observed if you remove all pointers and leave just scalar values.
Would be sort of boring, though, without arrays or objects...
Just like there are (significantly larger) subsets of C and Objective-C
that are fully compatible with Boehm's GC, but the whole language
isn't.
Cheers,
Marcel
--
Marcel Weiher Metaobject Software Technologies
email@hidden www.metaobject.com
Metaprogramming for the Graphic Arts. HOM, IDEAs, MetaAd etc.
1d480c25f397c4786386135f8e8938e4
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.
| References: | |
| | >Ugly bug in Foundation, beware! (From: Ondra Cada <email@hidden>) |
| | >Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Alastair Houghton <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Ondra Cada <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Alastair Houghton <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Brent Gulanowski <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Alastair Houghton <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Ondra Cada <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Marcel Weiher <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Brent Gulanowski <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Marcel Weiher <email@hidden>) |
| | >Re: Is that really a bug at all? (was: Re: Ugly bug in Foundation, beware!) (From: Ondra Cada <email@hidden>) |