StackOverflowError when creating a view from a snipped rope.

[phronmophobic]

I haven't fully investigated the issue, but I do have a short repro:

> (ropes/view (ropes/snip (ropes/rope [1 2])
                          1 2)
              0 1)
Execution error (StackOverflowError) at ropes.core/rope (core.clj:331).
null

workaround: Checking to see if the view spans the full rope and just returning the rope seems to be a sufficient workaround.

Happy to provide more info that might be helpful.

I'm trying to use ropes to build a text editor and ropes seems to be a great fit so far. Thanks!

[phronmophobic]

It seems like the problem may also occur even when the view doesn't span the full rope. Another repro:

> (-> (ropes/rope [1 2 3 4])
      (ropes/snip 3 4)
      (ropes/view 1 3))
Execution error (StackOverflowError) at ropes.core/rope (core.clj:331).
null

[phronmophobic]

Another short repro without ropes/view:

> (-> (ropes/rope [1 2 3 4 5])
      (ropes/snip 4 5)
      (ropes/snip 3 4))
Execution error (StackOverflowError) at ropes.core/rope (core.clj:331).
null

Curiously, the following work:

> (-> (ropes/rope [1 2 3 4 5])
      (ropes/snip 4 5)
      (ropes/snip 3 ))
;; #rope [ 1 2 3 ]


> (-> (ropes/rope [1 2 3 4 5])
      (ropes/snip 4)
      (ropes/snip 3))
;; #rope [ 1 2 3 ]