Add get_type() method to TypeIdRegistryMixin

tfw/internals/event_handling/type_id_registry/__init__.py

@@ -1 +1 @@
-from .type_id_registry import TypeIdREgistryMixin
+from .type_id_registry import TypeIdRegistryMixin

tfw/internals/event_handling/type_id_registry/test_type_id_registry.py

@@ -1,23 +1,26 @@
 import pytest
 
-from .type_id_registry import TypeIdREgistryMixin
+from .type_id_registry import TypeIdRegistryMixin
 
 
 def test_registry():
-    class A(TypeIdREgistryMixin):
+    class A(TypeIdRegistryMixin):
         _type_id_registry = {}
     class B(A):
         pass
     class C(A):
         pass
+    class D(B):
+        pass
 
     # pylint: disable=protected-access
-    assert A._type_id_registry['B'] == B
-    assert A._type_id_registry['C'] == C
+    assert A._type_id_registry['B'] == A.get_type('B') == B
+    assert A._type_id_registry['C'] == A.get_type('C') == C
+    assert A._type_id_registry['D'] == A.get_type('D') == D
 
 
 def test_build_by_type_id():
-    class D(TypeIdREgistryMixin):
+    class D(TypeIdRegistryMixin):
         _type_id_registry = {}
     built = []
     class E(D):

tfw/internals/event_handling/type_id_registry/type_id_registry.py

@@ -2,7 +2,7 @@ from abc import ABCMeta
 from contextlib import suppress
 
 
-class TypeIdREgistryMeta(ABCMeta):
+class TypeIdRegistryMeta(ABCMeta):
     def __init__(cls, name, bases, attrs):
         with suppress(AttributeError):
             if cls.__name__ in cls._type_id_registry:
@@ -11,11 +11,14 @@ class TypeIdREgistryMeta(ABCMeta):
         super().__init__(name, bases, attrs)
 
 
-class TypeIdREgistryMixin(metaclass=TypeIdREgistryMeta):
+class TypeIdRegistryMixin(metaclass=TypeIdRegistryMeta):
     @classmethod
-    def build_type(cls, type_id, *args, **kwargs):
+    def get_type(cls, type_id):
         try:
-            instance_type = cls._type_id_registry[type_id]
-            return instance_type(*args, **kwargs)
+            return cls._type_id_registry[type_id]
         except KeyError:
             raise RuntimeError(f'No type with id {type_id}!')
+
+    @classmethod
+    def build_type(cls, type_id, *args, **kwargs):
+        return cls.get_type(type_id)(*args, **kwargs)