From: ara.t.howard@...
Date: 2006-08-25T23:34:38+09:00
Subject: Re: Support for singleton_class() (was Re: Call functions of superclass)

On Fri, 25 Aug 2006, Mauricio Fernandez wrote:

> On Fri, Aug 25, 2006 at 06:51:45PM +0900, Christian Neukirchen wrote:
>> While we are at adding methods, who else would like ot have a method
>> that returns the current block, so you can access it without needing
>> to declare it in the arguments list?  (And likewise for lambda{}, even
>> if 1.9 fixes that.)
>
> Like Proc.new ?
> IIRC there were plans to deprecate it in 1.9, so that request seems to go
> against the tide of change :) (but it still seems to work, though):
>
> RUBY_VERSION                # => "1.8.5"
> RUBY_RELEASE_DATE           # => "2006-08-25"
> def a; Proc.new.call end
> a {1+1}                     # => 2
>
> RUBY_VERSION                # => "1.9.0"
> RUBY_RELEASE_DATE           # => "2006-08-13"
> def a; Proc.new.call end
> a{1+1}                      # => 2

i use

   harp:~ > cat a.rb
   def foo()
     b = lambda{|*a| yield *a} if block_given?
     b[42] if b
   end

   foo
   foo{|n| p n}

   harp:~ > ruby a.rb
   42


-a
-- 
to foster inner awareness, introspection, and reasoning is more efficient than
meditation and prayer.
- h.h. the 14th dalai lama