From: ara.t.howard@...
Date: 2006-07-13T23:26:34+09:00
Subject: Re: prototype design pattern

On Thu, 13 Jul 2006 transfire@gmail.com wrote:

> Why no go the extra step?
>
>     DB = Prototype.new{
>       host 'localhost'
>       port 4242
>
>       connect does{ 'do something' }
>
>       inspect does{ [host, port].join ':' }
>     }
>
> T.

easy enough, i'd simply make does() return a block extended with a marker:

   def does &b
     class << b
       def does() true end
     end
     b
   end

then, later

   if b.respond_to? 'does'
     # defined a method
   else
     # attribute with proc value
   end

otherwise i could tell the difference between

   foobar lambda{ 'plain ol block' }

   foobar does{ 'method body' }

in any case, i'm unclear as to what

   connect does{ 'do something' }

buys you over

   def connect() 'do something' end

other than two chars.  i admit it looks nice though...  actually i guess the
closure might make it nice since you could do

   a = 42

   connect does{ p a }

which you cannot with a normal method def.  so - what's __your__ reasoning on
this?

cheers.

-a
-- 
suffering increases your inner strength.  also, the wishing for suffering
makes the suffering disappear.
- h.h. the 14th dali lama