D382: simplemerge: make context parameters non-optional

[martinvonz (Martin von Zweigbergk)]

martinvonz added inline comments.

INLINE COMMENTS

> simplemerge.py:428
>      def readctx(ctx):
>          if not ctx:
>              return None

Can this still be true? I.e., is it valid to pass None instead of one of the contexts?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D382

To: phillco, #hg-reviewers
Cc: martinvonz, mercurial-devel