Method _recurse_with_dependents

lib/sqlalchemy/orm/decl_api.py:1417–1433

(
        cls, registries: Set[RegistryType]
    )

    @classmethod
    def _recurse_with_dependents(
        cls, registries: Set[RegistryType]
    ) -> Iterator[RegistryType]:
        todo = registries
        done = set()
        while todo:
            reg = todo.pop()
            done.add(reg)

            # if yielding would remove dependents, make sure we have
            # them before
            todo.update(reg._dependents.difference(done))
            yield reg

            # if yielding would add dependents, make sure we have them
            # after
            todo.update(reg._dependents.difference(done))

    @classmethod
    def _recurse_with_dependencies(