From: "David A. Black" <dblack@...>
Date: 2009-09-16T05:04:49+09:00
Subject: Re: .map.with_object(3){|v|v+3} #=> 3 Is this a bug?

Hi --

On Wed, 16 Sep 2009, 7stud -- wrote:

> 7stud -- wrote:
>> The next call in the method chain is with_object():
>>
>>> [1,2,3].map.with_object(3){|v|v+3}
>>
>> and ***regardless of the iterator that with_object is attached to***,
>> when
>> with_object() is called with a block, with_object returns its argument,
>> which in this case is 3.
>
> That isn't accurate, though.  In this case with_object isn't attached to
> an iterator--it's attached to an enumerator.  So I guess I should have
> simply said,
>
> When with_object is called with a block, with_object returns its
> argument.
>
> and avoided the issue of how ruby allows you to chain enumerators to
> both iterators and other enumerators.

I don't think it does; with_object is an instance method of
Enumerator.


David

-- 
David A. Black, Director
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