From: Brian Candler <B.Candler@...>
Date: 2003-03-15T18:57:31+09:00
Subject: Re: dynamically create a method

On Sat, Mar 15, 2003 at 05:35:09AM +0900, Joel VanderWerf wrote:
> Rudolf Polzer wrote:
> >But I'd still like to know how to dynamically create a method with a
> >dynamically given name. If possible, without such a hackery.
> 
> irb(main):003:0> Fixnum.instance_eval {define_method(:power) do |a| self 
> ** a end}
> #<Proc:0x40210220@(irb):3>
> irb(main):004:0> 3.power 2
> 9

The following doesn't work with 1.6.8, has it been fixed in 1.8?

  class Foo < String; end
  Foo.instance_eval { define_method(:gsub,*a) { puts "hello"; super } }
  Foo.new("test").gsub(/t/,'z')

>> x.rb:2: super called outside of method

Regards,

Brian.