comparison mercurial/revset.py @ 20482:a979078bd788

revset: added spanset class to represent revision ranges

20481:a5d7081a4c34

        self._subset.reverse()

    def set(self):
        return set([r for r in self])

# tell hggettext to extract docstrings from these functions:
i18nfunctions = symbols.values()

20482:a979078bd788

        self._subset.reverse()

    def set(self):
        return set([r for r in self])

class spanset(object):
    """Duck type for baseset class which represents a range of revisions and
    can work lazily and without having all the range in memory
    """
    def __init__(self, start, end):
        self._start = start
        self._end = end

    def __iter__(self):
        if self._start <= self._end:
            for r in xrange(self._start, self._end):
                yield r
        else:
            for r in xrange(self._start, self._end, -1):
                yield r

    def __contains__(self, x):
        return (x <= self._start and x > self._end) or (x >= self._start and x<
                self._end)

# tell hggettext to extract docstrings from these functions:
i18nfunctions = symbols.values()