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Re: How to implement an object whose properties are really dictionary entries.
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Re: How to implement an object whose properties are really dictionary entries.


  • Subject: Re: How to implement an object whose properties are really dictionary entries.
  • From: Kyle Sluder <email@hidden>
  • Date: Thu, 12 Jul 2012 14:44:09 -0700

On Thu, Jul 12, 2012, at 02:40 PM, Jens Alfke wrote:
> By comparison, creating the methods at runtime is comparably slow on the
> first call, then much faster after that. It's still going to be slower
> than a regular method call because the implementation has to figure out
> which method you were calling and map that to a property name, but it's
> not as bad.

Not necessarily. Now that we have blocks-as-IMPs, you could choose to
create a separate IMP for each property you're dynamically adding,
rather than disassembling the selector from within the IMP.

Classic time/memory tradeoff.

--Kyle Sluder
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  • Follow-Ups:
    • Re: How to implement an object whose properties are really dictionary entries.
      • From: Jens Alfke <email@hidden>
References: 
 >How to implement an object whose properties are really dictionary entries. (From: Motti Shneor <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Keary Suska <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Dave DeLong <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Keary Suska <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Motti Shneor <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Keary Suska <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Motti Shneor <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Quincey Morris <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Motti Shneor <email@hidden>)
 >Re: How to implement an object whose properties are really dictionary entries. (From: Jens Alfke <email@hidden>)

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