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Message from discussion defrecord with "inheritance"
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David Nolen  
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 More options May 21 2012, 9:55 am
From: David Nolen <dnolen.li...@gmail.com>
Date: Mon, 21 May 2012 09:55:16 -0400
Local: Mon, May 21 2012 9:55 am
Subject: Re: defrecord with "inheritance"
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On Mon, May 21, 2012 at 4:53 AM, nicolas.o...@gmail.com <

nicolas.o...@gmail.com> wrote:
> > ClojureScript? The work is done. It's all protocols.

> Hi David,

> I just have. This is a nice work. There is a lot of repetitions though.
> For example:
> - IEquiv
>  (-equiv [coll other] (equiv-sequential coll other))

> -   IHash
>  (-hash [coll] (caching-hash coll hash-coll __hash))
>  (where caching-hash has to be a macro)

> -  ICounted
>  (-count [coll] count)

> -  ILookup
>  (-lookup [coll k] (-nth coll k nil))
>  (-lookup [coll k not-found] (-nth coll k not-found))

And now any of those implementations can easily change at anytime without
any external considerations. So what's the problem?

David


 
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