From: "jonathan leonard <zjll9@...> <zjll9@..." <zjll9@...>
Date: 2005-12-11T14:25:46+09:00
Subject: Re: About class methods

ruby-ml wrote:
> On 2005.12.11 10:34, "jonathan <zjll9@imail.etsu.edu>
> <zjll9@imail.etsu.edu> <zjll9@imail.etsu.edu> <zjll9@imail.etsu.edu>"
> <zjll9@imail.etsu.edu> wrote:
>> > can be individually extended.  Two instances of MyClass, for example,
>> >    end
>> words, must the singleton always be associated with an instance and not 
>> 
>>             end }
>> non-singleton (i.e., many) instances of the subclasses.
> Typically, if I understand you correctly, you could just use this
> idiom (unless you want to just eval the whole thing):
> 
>   # Classes are constants
>   #       |                   Inherit MyClass
>   #       |                       |    We can use blocks
>   #       |                       |     |
>   #       V                       V     V
>   MyClassExtension = Class.new(MyClass) {
>                        def self.some_method()
>                          # ...
>                        end
> 
>                        def some_method()
>                          # ...
>                        end
>                      }
> 

Oooh.  That's cool!  In the case I was envisioning, I would want to eval 
the whole thing (so that classes could be extended dynamically at 
run-time).

--J

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