From: Tomas Matousek <redmine@...>
Date: 2010-08-13T01:37:00+09:00
Subject: [ruby-core:31696] [Backport #3680] Splatting calls to_ary instead of to_a in some cases

Issue #3680 has been updated by Tomas Matousek.


I see, so there is implicit and explicit splatting. The former uses to_ary the latter to_a. 

So the splatting in the following code (in when clause) should use to_a since it is an explicit one, right? It attempts to call both to_ary and to_a though. I would expect it to call just to_a like any other explicit splatting.

class C
  def respond_to? name
    p name
    false
  end
  
  def to_s
    'c'
  end
end

case
  when *C.new;
end

output:
D:\temp\RubyParser>ruby19 -v x.rb
ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-mingw32]
:to_ary
:to_a

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