From: Yukihiro Matsumoto <matz@...>
Date: 2007-11-24T23:40:00+09:00
Subject: Re: retry semantics changed

Hi,

In message "Re: retry semantics changed"
    on Sat, 24 Nov 2007 22:08:50 +0900, Charles Oliver Nutter <charles.nutter@sun.com> writes:

|Yukihiro Matsumoto wrote:
|> But how about retry being inside of the block?
|
|In the simple case, it's ok as far as I can tell, since it's being 
|explicitly used:

|However there are implicit cases that make it just as dangerous:
|
|CODE:
|
|public
|def go(x, y = (print :c; 1))
|   p = proc { retry }
|   (print :d; 1).times &p
|end
|(print :a; self).go((print :b; self))
|
|OUTPUT:
|
|abcdddddddddd...

Hmm, it's implicit and weird, I admit.  But is it dangerous?
When you write weird script and get weird output, it's rather natural,
right?

							matz.