mercurial/smartset.py

33108:208de1534ebd

    Wrapper structure for generators that provides lazy membership and can
    be iterated more than once.
    When asked for membership it generates values until either it finds the
    requested one or has gone through all the elements in the generator
    """
    def __init__(self, gen, iterasc=None):
        """
        gen: a generator producing the values for the generatorset.
        """

            it = self.fastasc
        if it is None:
            # we need to consume all and try again
            for x in self._consumegen():
                pass
            return self.first()
        return next(it(), None)

    def __repr__(self):
        d = {False: '-', True: '+'}[self._ascending]
        return '<%s%s>' % (type(self).__name__, d)

33109:247bae545061

    Wrapper structure for generators that provides lazy membership and can
    be iterated more than once.
    When asked for membership it generates values until either it finds the
    requested one or has gone through all the elements in the generator

    >>> xs = generatorset([0, 1, 4], iterasc=True)
    >>> assert xs.last() == xs.last()
    >>> xs.last()  # cached
    4
    """
    def __init__(self, gen, iterasc=None):
        """
        gen: a generator producing the values for the generatorset.
        """

            it = self.fastasc
        if it is None:
            # we need to consume all and try again
            for x in self._consumegen():
                pass
            return self.last()
        return next(it(), None)

    def __repr__(self):
        d = {False: '-', True: '+'}[self._ascending]
        return '<%s%s>' % (type(self).__name__, d)