From: jd204c@... (James Davis)
Date: 2002-12-10T05:57:19+09:00
Subject: Newbie: invoking class methods

(Using Ruby 1.6.6)
I am writing a game.  A "splash" screen displays four buttons to the
user.  Each button has an action assigned to it, loaded from a file.
When a user clicks a button, I want to execute a class method such as
Game.new.  First, I thought I wanted a Proc for this purpose,  so I
tried:
   ba = proc {ba}  # ba = "Game.new"
....
   ba.call
This approach didn't work.  Didn't produce errors.  So I switched to
  eval(ba)
which does work, but I was hoping for a better technique.  Eval seems
crude and unsafe to me, particularly since the button actions are
loaded from a file.  I am wondering if there might be another approach
such as something like "instance_method" for class methods, or send,
or yield.  Any advice appreciated.  Thanks,

- Jim Davis -