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perf: micro-optimize BaseFactory._infer_model_type #731

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perf: micro-optimize BaseFactory._infer_model_type #731

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4 changes: 3 additions & 1 deletion polyfactory/factories/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -284,7 +284,9 @@ class Foo(ModelFactory[MyModel]): # <<< MyModel
"""

factory_bases: Iterable[type[BaseFactory[T]]] = (
b for b in get_original_bases(cls) if get_origin(b) and issubclass(get_origin(b), BaseFactory)
b
for b in get_original_bases(cls)
if (orig := get_origin(b)) and issubclass(orig, BaseFactory)
)
generic_args: Sequence[type[T]] = [
arg for factory_base in factory_bases for arg in get_args(factory_base) if not is_type_var(arg)
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