From: "nobu (Nobuyoshi Nakada)" <nobu@...>
Date: 2013-08-09T00:10:27+09:00
Subject: [ruby-core:56455] [ruby-trunk - Bug #8735] Enumerator::Lazy#zip	behaves differently from Enumerable#zip when yield with	non-single argument


Issue #8735 has been updated by nobu (Nobuyoshi Nakada).

Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN to 1.9.3: DONTNEED, 2.0.0: REQUIRED


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Bug #8735: Enumerator::Lazy#zip behaves differently from Enumerable#zip when yield with non-single argument
https://bugs.ruby-lang.org/issues/8735#change-40994

Author: kachick (Kenichi Kamiya)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby -v ruby 2.1.0dev (2013-08-05 trunk 42385) [i686-linux]
Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED


=begin
Is this intended?


 obj = Object.new
 def obj.each
   yield
   yield 1, 2
 end

 obj.to_enum.zip(obj.to_enum)            #=> [[nil, nil],
                                         #    [[1, 2], [1, 2]]]


 obj.to_enum.lazy.zip(obj.to_enum).force #=> [[false, nil],
                                         #    [1, [1, 2]]]
=end



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