ActionController::ActionController::ActionController :D

[chancancode]

Today we discovered that on the Rails documentation site we have an entry for ActionController::ActionController::ActionController. From here, I suspect that the problem might be caused by lines like these, but I am not 100% sure.

[chancancode]

cc @fxn @zzak

[zzak]

Would help if we could reproduce it without sdoc

[fxn]

@zzak could it be possible to patch RDoc locally to print a trace when the constant path is built? The first couple would be enough.

[zzak]

I need to determine if this is a bug in sdoc or rdoc

[aycabta]

I identified the problem and reproduce it by the code below:

module A
  class A::B
  end
end

When you save it as a.rb and run rdoc a.rb, the doc/A/A/A.html is generated for A::A::A.

In Rails case, it's at actionpack/lib/action_controller/metal/exceptions.rb .

module ActionController
  # (snip)
  class ActionController::UrlGenerationError < ActionControllerError #:nodoc:
  end
  # (snip)
end

Full name of the UrlGenerationError is ActionController::UrlGenerationError as distinct from ActionController::ActionController::UrlGenerationError, but ActionController::ActionController::ActionController is generated. UrlGenerationError has :nodoc:, but if it's documented, it'll be generated at ActionController::ActionController::ActionController::UrlGenerationError. You can check it by small reproduction sample above, there is doc/A/A/A/B.html for A::A::A::B .

It's a bug of RDoc definitely. Please wait, I'll fix it.

[aycabta]

This is fixed by ruby/rdoc#523.

[robin850]

Thank you very much @aycabta !