Hi,

At Tue, 25 Oct 2005 06:11:40 +0900,
Daniel Amelang wrote in [ruby-core:06373]:
> This implementation is thread-safe because the temporary method is defined
> on the singleton class of the object (aka 'metaself' as Dave Thomas called
> it at RubyConf 2005).

It is not thread-safe.

And it doesn't work with a frozen object.

-- 
Nobu Nakada