Question

I am working on a code base that has many modules nested 4 or 5 deep. Right now, this results in our code being heavily indented from the beginning.

Is there an acceptable way of putting multiple module declarations on the same line?

For example,

module A
  module B
    #do stuff
  end
end

Is there a way to make it something like this?

module A::B
  #do stuff
end

Though the previous block doesn’t work, I was able to get this next one to work, however I am not sure if this is considered acceptable code construction.

module A module B
  #do stuff
end end

Answer 1

I think you’ve answered it yourself – your third segment looks pretty bad to my eye.

But, more to the point, if you did write module A::B and module A had never been defined before, you would be implicitly defining an (empty) module A, which doesn’t seem very useful. And, once you’ve defined module A once, you’re welcome to write module A::B to define module B. So it seems actively good to me that you can’t use your second example.