D7455: revset: add an assertion to help pytype

[mharbison72 (Matt Harbison)]

mharbison72 created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D7455

AFFECTED FILES
  mercurial/revset.py

CHANGE DETAILS

diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -684,6 +684,8 @@
             mcache[0] = matchmod.match(repo.root, repo.getcwd(), [pat], ctx=c)
         m = mcache[0]
         fname = None
+
+        assert m is not None  # help pytype
         if not m.anypats() and len(m.files()) == 1:
             fname = m.files()[0]
         if fname is not None:



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