From: Aldric Giacomoni <aldric@...>
Date: 2009-12-04T01:15:43+09:00
Subject: Re: easy dsl style method generation?

Roger Pack wrote:
> Here's what I wish I could easily do.
> 
> Move.from(x).to(y)
> 
> and set it up easily, like
> 
> class Move
>  def from(x).to(y)
> 
>  end
> end

Apparently, what you're looking for is something like this:

class Move
  def from x
    @x = x
    return self
  end

  def to y
    raise ArgumentError, "X is not defined!" unless @x
    @y = y
    # Do your actual move
  end
end

In plain english, "from" returns an object on which you can call "to".
I mean, I would just do "def move_from_to x, y" but maybe your way can 
be done.. Have fun with the error checking though.

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