comparison mercurial/revset.py @ 26099:ab66c1dee405

revset: cache smartset's min/max

As the content of a smartset never changes, min and max will never change
either.  This will save us time when this function is called multiple times.
This is relevant for issue4782 but does not fix it.

26098:ce26928cbe41

    def isdescending(self):
        """True if the set will iterate in descending order"""
        raise NotImplementedError()

    def min(self):
        """return the minimum element in the set"""
        if self.fastasc is not None:
            for r in self.fastasc():
                return r
            raise ValueError('arg is an empty sequence')
        return min(self)

    def max(self):
        """return the maximum element in the set"""
        if self.fastdesc is not None:
            for r in self.fastdesc():
                return r

26099:ab66c1dee405

    def isdescending(self):
        """True if the set will iterate in descending order"""
        raise NotImplementedError()

    @util.cachefunc
    def min(self):
        """return the minimum element in the set"""
        if self.fastasc is not None:
            for r in self.fastasc():
                return r
            raise ValueError('arg is an empty sequence')
        return min(self)

    @util.cachefunc
    def max(self):
        """return the maximum element in the set"""
        if self.fastdesc is not None:
            for r in self.fastdesc():
                return r