From: Yukihiro Matsumoto <matz@...>
Date: 2005-08-08T17:10:19+09:00
Subject: Re: new block notation (was: Re: ruby-dev summary 26468-26661)

Hi,

In message "Re: new block notation (was: Re: ruby-dev summary 26468-26661)"
    on Mon, 8 Aug 2005 02:36:10 +0900, "Trans" <transfire@gmail.com> writes:

|Irregardless, I do think these two points are sufficiant to make blocks
|and lambdas different objects. One object can have more than one
|_behavior_ depending on its usage/context. Both of your points are
|about behavior differences rather then substance differences. I think
|saying they are two diffent things is more confusing than saying they
|are one with two different uses.

I don't care if they are different object or not.  It's an
implementation detail we don't talk about yet.

The point is

  (a) we need blocks as they are now.
  (b) I think we need anonymous functions, which 
     (1) require all argument functionality of method
     (2) should be terminated by return inside body

For (b-1) I now think we need a new syntax for lambdas, not just
extend block parameters.  In general, block parameters do not need
optional arguments, nor keyword arguments.

							matz.