comparison mercurial/ancestor.py @ 38595:f8b46245b26a

py3: make 'None in lazyancestors' not crash

This looks somewhat weird, but we have callers like 'torev(n) in futurecommon'
around where torev(n) is dictlike.get(n). I could fix callers, but that would
be unnecessarily verbose.

38594:b263133eeb5a

        # heap and seen set is complex enough that it slows down both. Keep
        # them separate.
        seen = self._containsseen
        if target in seen:
            return True

        parentrevs = self._parentrevs
        visit = self._containsvisit
        stoprev = self._stoprev
        heappop = heapq.heappop

38595:f8b46245b26a

        # heap and seen set is complex enough that it slows down both. Keep
        # them separate.
        seen = self._containsseen
        if target in seen:
            return True
        # Only integer target is valid, but some callers expect 'None in self'
        # to be False. So we explicitly allow it.
        if target is None:
            return False

        parentrevs = self._parentrevs
        visit = self._containsvisit
        stoprev = self._stoprev
        heappop = heapq.heappop