Function permute_right_option_groups

Tools/clinic/libclinic/function.py:286–300

Given [(1,), (2,), (3,)], should yield: () (1,) (1, 2) (1, 2, 3)

(
    l: Sequence[Iterable[Parameter]]
)

def permute_right_option_groups(
    l: Sequence[Iterable[Parameter]]
) -> Iterator[ParamTuple]:
    """
    Given [(1,), (2,), (3,)], should yield:
      ()
      (1,)
      (1, 2)
      (1, 2, 3)
    """
    yield tuple()
    accumulator: list[Parameter] = []
    for group in l:
        accumulator.extend(group)
        yield tuple(accumulator)


def permute_optional_groups(