From: Tanaka Akira <akr@...>
Date: 2008-05-04T16:33:09+09:00
Subject: [ruby-dev:34588] Thread.current.key? nil

以下のように、Thread.current.key? nil の挙動がスレッド変数が
あるかどうかで変わります。

% ./ruby -ve '
p Thread.current.key? nil
Thread.current[:a] = 1
p Thread.current.key? nil
'
ruby 1.9.0 (2008-05-02 revision 16284) [i686-linux]
false
-e:4:in `key?': nil is not a symbol (TypeError)
        from -e:4:in `<main>'
-- 
[田中 哲][たなか あきら][Tanaka Akira]