pyecore's eorderset can't work under ordered-set 3.0.0

@aranega It might be a regression. ordered-set 3.0.0 change the slicing implementation from

               return OrderSet(result) #2.0.2

to

               return self.__class__(result) # 3.0.0

and the slicing will return EOrderedSet with empty items. for

              Node.children[1:]

Could you give a check ?

[aranega]

Ok, so the issue seems to come from Python’s typing module. The introduction of some type check in the ordered_set module triggered the typing issue.

I close again this issue 😃. Thanks so much @bmjjr for the test case, it gave me more material to reflect on!

[CFAndy]

@aranega Great progress actually.

class EOrderedSet(EAbstractSet, ordered_set.OrderedSet):
    def __init__(self, owner, efeature=None):
        super().__init__(owner, efeature)
        ordered_set.OrderedSet.__init__(self) #this line drop the list parameter

    def update(self, others):
        self._orderedset_update = True
        super().update(others)
        self._orderedset_update = False