Impossible missed branch to a negative line

[nedbat]

Originally reported by Donald Stufft (Bitbucket: dstufft, GitHub: dstufft)

---

I'm being told that I'm missing a branch from line 404 to line -68. This seems impossible to me since a negative line makes zero sense.

Should be able to reproduce by cloning github.com/pypa/linehaul, checking out commit e6fd40a, installing requirements-dev.txt (I'm running CPython 3.5.1 on OSX if it matters) and then running make tests.

---

• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/466

[nedbat]

Original comment by Donald Stufft (Bitbucket: dstufft, GitHub: dstufft)

---

You can see the output here by the way: https://travis-ci.org/pypa/linehaul/jobs/102996327

[nedbat]

Fix #466: multi-line statements first in decorated functions

Also, leave in the SetSpy tracer we've used before to find things like this.

→ <<cset 8fe58047bf3c (bb)>>

[nedbat]

Fixed in 8fe58047bf3c (bb). Turns out it was due to a multi-line statement as the first thing in a decorated function....