From: Trans <transfire@...>
Date: 2005-10-31T23:57:06+09:00
Subject: Re: C# attributes in Ruby?


Zach Dennis wrote:

> Ok, still wrapping my head around this... Is the following a correct
> assumption?
>
> You would use:
>     class MyObject
>   	ann :type => :browsable
>          ...
>     end

I think you mean to annotate the class itself, yes? Then...

    class MyObject
      ann self, :type => :browsable
        ...
    end

or (works only in latest as-of-yet unreleased version)

    class MyObject
      annotation :type => :browsable
        ...
    end

> Over something like?
>     class CandyBar
>         attr_reader :browseable?
>         ...
>     end

Yes.

> Now perhaps I am missing something, so another question. During the
> lifetime of your object, would it's annotations change? So it may be
> browsable at one time during it's life, but then later on say the
> :type=>:browsable would be removed?

Yes.

  MyObject.annotation.type = nil

Not sure there's a clean way to delete an annoation yet, I will add
that. Thanks.

> Since you see annotations as so useful, I am just trying to make sure I
> see where the usefullness is, in case it is something I find would
> benefit my own code. That is why I ask so many questions.

No problem. If you have any suggestions for improvement please suggest.

T.