From: Avi Bryant <avi@...4.com>
Date: 2001-03-06T01:40:48+09:00
Subject: [ruby-talk:12040] Re: ANN: Memoize 0.1.2


On Tue, 6 Mar 2001, ts wrote:

>  How do you do with such a function ?
> 
>    class Foo
>       def bar
>          puts "hello world"
>          yield 12 if block_given?
>       end
>    end
>  
>  With your example Foo.advice() it give an error message in this case.

Really?  What error?  It works for me:

require 'advice'

class Foo
	def bar
		puts "hello world"
		yield 12 if block_given?
	end
	
	def Foo.advice(*args)
		puts "pre"
		yield
	end
	
	advise_method :bar
end

Foo.new.bar {|x| puts x}

#outputs:
# pre
# hello world
# 12