comparison mercurial/revset.py @ 22729:f7b0ebe6ad42

abstractsmartset: add default implementation for __add__

22728:bf5ff3686100

    def __add__(self, other):
        """Returns a new object with the union of the two collections.

        This is part of the mandatory API for smartset."""
        raise NotImplementedError()

    def __sub__(self, other):
        """Returns a new object with the substraction of the two collections.

        This is part of the mandatory API for smartset."""

22729:f7b0ebe6ad42

    def __add__(self, other):
        """Returns a new object with the union of the two collections.

        This is part of the mandatory API for smartset."""
        kwargs = {}
        if self.isascending() and other.isascending():
            kwargs['ascending'] = True
        if self.isdescending() and other.isdescending():
            kwargs['ascending'] = False
        return _addset(self, other, **kwargs)

    def __sub__(self, other):
        """Returns a new object with the substraction of the two collections.

        This is part of the mandatory API for smartset."""