Class BareSetLike

tests/test_stl.py:696–707

    # Implements the Set protocol without explicitly inheriting from collections.abc.Set.
    class BareSetLike:
        def __init__(self, *args):
            self.data = set(args)

        def __len__(self):
            return len(self.data)

        def __contains__(self, item):
            return item in self.data

        def __iter__(self):
            yield from self.data

    # Implements the Set protocol by reusing BareSetLike's implementation.
    # Additionally, inherits from collections.abc.Set.