comparison mercurial/revset.py @ 28718:f103f985ac00

revset: prevent infinite recursion on pypy

as explained in the commit, __len__ cannot do [x for x in self] because
that can potentially call __len__ again, causing infinite recursion

28717:c5f212c8ad78

            return True
        return False

    def __len__(self):
        # Basic implementation to be changed in future patches.
        l = baseset([r for r in self])
        return len(l)

    def sort(self, reverse=False):
        self._subset.sort(reverse=reverse)

28718:f103f985ac00

            return True
        return False

    def __len__(self):
        # Basic implementation to be changed in future patches.
        # until this gets improved, we use generator expression
        # here, since list compr is free to call __len__ again
        # causing infinite recursion
        l = baseset(r for r in self)
        return len(l)

    def sort(self, reverse=False):
        self._subset.sort(reverse=reverse)