From: Gavin Sinclair <gsinclair@...>
Date: 2004-10-04T23:12:04+09:00
Subject: Re: Too Many Ways?

On Tuesday, October 5, 2004, 12:08:42 AM, trans. wrote:

>> So in an ideal world I'd have
>>
>>   def foo(a,b)        # block forbidden, raise exception if you pass one
>>   def foo(a,b,&c)     # block required, raise exception if it's missing
>>   def foo(a,b,&c=nil) # block optional
>>
>> That syntax would also allow a 'default block':
>>
>>   def foo(a,b,&c=proc{|x| $stderr.puts x})

> This last should be allowed anyway, me thinks too.

That's bad style, IMO.  I'd prefer to read this:

  def foo(a, b, &c=nil)
    c ||= lambda { |x| ... }
    ...
  end

Gavin