compose with file name & line number

[robturtle]

class OneDay
  def execute
    compose(Eat)
    compose(Coding)
    compose(Sleep)
  end
end

Image if errors happened, there's no good way to tell where exactly the location the error happened in the first place. Especially when each sub-interactions also have its composed interactions. Basically the backtrace from the top-level interaction to the first scene of the errors will be swallowed.

It'd good if

1. the errors remember the __FILE__ and __LINE__ of where errors.add happens
2. when merging errors from the composed sub-interaction, it should retain the file location info in the errors
3. probably the best place to save such info is in detailed_messages?

[AaronLasseigne]

I'm not sure how I'd go about doing this. I don't think I can force that information into the backtrace.

[robturtle]

I think the easiest way is via https://stackoverflow.com/a/37135337/2214973.

[robturtle]

I didn't look into the source yet. It depends on when does the exception being raised.

• If the failed sub-interaction first return back to the top-level interaction and raise afterward, then the sub-interaction should wrap its caller information way up to the top-level.
• If the failed sub-interaction raises in place, the compose method should simply set the backtrace from the error it captured.