From: Rick DeNatale <rick.denatale@...>
Date: 2009-12-11T00:22:15+09:00
Subject: [ruby-core:27128] Re: #to_enum ignores block?

On Thu, Dec 10, 2009 at 9:58 AM, Roger Pack <rogerdpack@gmail.com> wrote:
>> The whole purpose of to_enum is to return an Enumerator instance.
>> The block has no meaning and is ignored, it's what the docs and source say.
>> What did you expect it to do?
>
> I would expect it to act like a filter.
>>> (1..3).to_enum {|n| n*2}.to_a
> => [1, 4, 9]
>
> Apparently it used to do that--anybody know if it was a conscious
> decision to take it out?

As far as I can tell, standard Ruby Enumerable#to_enum never took a
block.  It's not documented to in the Ruby 1.8 documentation, and
looking at the 1.8.6 implementation code, it seems to ignore any
block.

Perhaps you were using some non-standard extension which added this,
facets perhaps?

-- 
Rick DeNatale

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