From: Aaron Patterson <tenderlove@...>
Date: 2011-12-09T09:27:35+09:00
Subject: [ruby-core:41558] Re: [ruby-trunk - Bug #5730][Open] Optinal block parameters assigns wrong


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On Fri, Dec 09, 2011 at 08:59:26AM +0900, Yukihiro Matsumoto wrote:
>=20
> Issue #5730 has been reported by Yukihiro Matsumoto.
>=20
> ----------------------------------------
> Bug #5730: Optinal block parameters assigns wrong
> http://redmine.ruby-lang.org/issues/5730
>=20
> Author: Yukihiro Matsumoto
> Status: Open
> Priority: Normal
> Assignee:=20
> Category:=20
> Target version:=20
> ruby -v: ruby 2.0.0dev (2011-12-09 trunk 33990) [i486-linux]ruby 2.0.0dev=
 (2011-12-09 trunk 33990) [i486-linux]=20
>=20
>=20
> The following program do not expand the given array, but it should expand=
 the value.
>=20
>=20
> def foo(&block)
>   block.call([1,2])
> end
> h =3D foo{|k=3D6,v=3D8|
>   p [k,v]   # gives [[1,2],8] but should be [1,2]
> }

Would this have the same behavior?

    irb(main):001:0> def bar(k=3D6,v=3D8); p [k,v]; end
    =3D> nil
    irb(main):002:0> def foo(&block); block.call([1,2]); end
    =3D> nil
    irb(main):003:0> foo(&method(:bar).to_proc)
    [[1, 2], 8]
    =3D> [[1, 2], 8]
    irb(main):004:0> RUBY_VERSION
    =3D> "2.0.0"
    irb(main):005:0>

--=20
Aaron Patterson
http://tenderlovemaking.com/

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