support for prelude.rb

[jfirebaugh]

MRI 1.9 has this crazy corner case called prelude.rb. It currently defines exactly two methods: Mutex#synchronize and Thread.exclusive.

pry-doc doesn't know about it currently:

[1] pry(main)> show-method Mutex#synchronize
Errno::ENOENT: No such file or directory - <internal:prelude>
from /Users/john/.rvm/gems/ruby-1.9.3-p0/gems/method_source-0.6.7/lib/method_source.rb:52:in `initialize'

Since this is such a crazy corner case, please treat it as ultra low-priority. ruby-doc.org doesn't even know about these methods yet! :)

[banister]

Thanks, is this just a 1.9.3 thing?

[jfirebaugh]

I think it's 1.9.x, it goes back to 2007.