comparison mercurial/revset.py @ 22809:88dad916c008

spanset: implement `first` and `last` methods

22808:228b0aafb1ce

        return self._start <= self._end

    def isdescending(self):
        return self._start >= self._end

class fullreposet(_spanset):
    """a set containing all revisions in the repo

    This class exists to host special optimisation.
    """

22809:88dad916c008

        return self._start <= self._end

    def isdescending(self):
        return self._start >= self._end

    def first(self):
        if self._ascending:
            it = self.fastasc
        else:
            it = self.fastdesc
        for x in it():
            return x
        return None

    def last(self):
        if self._ascending:
            it = self.fastdesc
        else:
            it = self.fastasc
        for x in it():
            return x
        return None

class fullreposet(_spanset):
    """a set containing all revisions in the repo

    This class exists to host special optimisation.
    """