From: Ilias Lazaridis <ilias@...>
Date: 2005-04-04T00:34:43+09:00
Subject: Re: [EVALUATION] - E03 - jamLang Evaluation Case Applied to Ruby

Csaba Henk wrote:
> On 2005-04-03, Ilias Lazaridis <ilias@lazaridis.com> wrote:
> 
>>>>def talker
>>>>
>>>>  def sayHello
>>>>    puts "Hello World"
>>>>  end
>>>>
>>>>  def sayYourName
>>>>    puts @name
>>>>  end
>>>>
>>>>end
> 
> [snip]
> 
>>but it gives me the basic idea:
>>
>>class Object
>>   def meta() @meta ||= {} end
>>end
>>
>>talker.sayYourName.meta[:author] = "it's just me"
>>puts talker.sayYourName.meta[:author]
>>=> it's just me
> 
> If you want metadata for the _function_, then it's not exactly the way
> to go. 
> 
> The sayYourName method, as defined above, is a side-effecting one,
> writes out @name, then returns nil, which is a unique object, without
> any reference to talker. That is, it's not a possible carrier of
> metainformation.
> 
> What seems to be feasible is implementing one of the following
> behaviours:
[...] - (several other suggestions)

I like the extracted construct - and it works in practice.

Thus I'm covered in this point.

Thank you for your suggestions.

..

-- 
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