[Rubycocoa-talk] objc_method documentation?

[Nathaniel I. <nd...@bu...>]

Is there a source of good documentation for objc_method? I'm trying to call,
from Obj-C, a three-argument Ruby method taking an array and two strings,
and returning a boolean. I'm getting inconsistent results owing to my lack
of understanding -- sometimes the returned result isn't typed as boolean,
sometimes calling the method raises an exception about the wrong number of
arguments. I started with examples from this page:

http://limechat.net/rubycocoa/bridge_test.html

But I'm don't recognize the "B@:@@" syntax, which is proving
google-resistant.

I see some commentary about improved boolean handling in the release notes
for .13, but I can't tell how much trouble I'll be biting off if I move
beyond the Leopard-bundled framework. Any problem reverting, if necessary?

While I'm asking, the .13.2 installer warns "If you overwrote Apple's Ruby
with a custom version, please make sure that it has been built with
--enabled-shared." I trust this is aimed at people who replaced
/usr/bin/ruby for some reason, and not applicable to upstanding individuals
with oddball /usr/local/bin/ruby. --enabled-shared is fine, I just don't
want to discover down the road that my deployment targets expect similarly
oddball ruby installations.

Thanks,

  -nat