Subclasses of UserObjects are omitted as valid input if no subclasses were defined at the time they were referenced

[jtv8]

from typing import List

from abc import ABC, abstractmethod

from wysdom import UserObject, UserProperty, SchemaArray, SchemaConst
from wysdom.mixins import RegistersSubclasses


class Pet(UserObject, RegistersSubclasses, ABC):
    pet_type: str = UserProperty(str)
    name: str = UserProperty(str)

    @abstractmethod
    def speak(self):
        pass


class Person(UserObject):
    first_name: str = UserProperty(str)
    last_name: str = UserProperty(str)
    pets: List[Pet] = UserProperty(SchemaArray(Pet))


class Dog(Pet):

    def speak(self):
        return f"{self.name} says Woof!"


class Greyhound(Dog):
    pet_type: str = UserProperty(SchemaConst("greyhound"))

    def speak(self):
        return f"{self.name}, the greyhound, says Woof!"


class Cat(Pet):
    pet_type: str = UserProperty(SchemaConst("cat"))

    def speak(self):
        return f"{self.name} says Miaow!"

example_dict_input = {
  "first_name": "Marge",
  "last_name": "Simpson",
  "pets": [
    {
      "pet_type": "greyhound",
      "name": "Santa's Little Helper",
    },
    {
      "pet_type": "cat",
      "name": "Snowball II",
    }
  ]
}
example = Person(example_dict_input)

Results in:

Traceback (most recent call last):
  File "late_subclass.py", line 57, in <module>
    example = Person(example_dict_input)
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/user_objects/UserObject.py", line 136, in __init__
    super().__init__({**(value or {}), **kwargs}, json_dom_info)
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/dom/DOMObject.py", line 44, in __init__
    self[key] = value
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/dom/DOMObject.py", line 73, in __setitem__
    element_key=key
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/object_schema/SchemaArray.py", line 36, in __call__
    item_type=self.items
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/dom/DOMList.py", line 50, in __init__
    self[:] = value
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/dom/DOMList.py", line 75, in __setitem__
    self.__json_element_data__[i] = (self._new_child_item(x) for x in o)
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/dom/DOMList.py", line 75, in <genexpr>
    self.__json_element_data__[i] = (self._new_child_item(x) for x in o)
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/dom/DOMList.py", line 82, in _new_child_item
    parent=self
  File "/mnt/c/Users/U568912/Gitroot/wysdom/wysdom/object_schema/SchemaObject.py", line 49, in __call__
    return self.object_type(value, dom_info)
TypeError: Can't instantiate abstract class Pet with abstract methods speak

[create-issue-branch]

Branch issue-55-Subclasses_of_UserObjects_are_omitted_as_valid_input_if_no_subclasses_were_defined_at_the_time_they_were_referenced created!