From: Steven Jenkins Date: 2004-04-25T00:52:15+09:00 Subject: Re: Tempfile strangeness in 1.9.0 Yukihiro Matsumoto wrote: > Tempfile is a duck quacks like an IO, so that adding a method to the > IO class does not always reflect to the Tempfile class. 1.6 tempfile > delegates every method to the IO at run time; 1.9 tempfile defines > delegation statically to gain performance. Sorry, my message wasn't clear. I read in the Pickaxe about Tempfile and delegation, and I figured that 1.9 was more restrictive than 1.8. What I didn't understand is why f = Tempfile.new('test') f.a f.close raises NoMethodError, but Tempfile.new('test') do |f| f.a end does not. The answer, of course, is that Tempfile.new() does not take a block. Sorry about the confusion. Steve