def _read_actual_property_type()

in src/databao_context_engine/introspection/property_extract.py [0:0]

• 11 lines of code
• 8 McCabe index (conditional complexity)

def _read_actual_property_type(property_type: type) -> type:
    property_type_origin = get_origin(property_type)

    if property_type_origin is Annotated:
        return property_type.__origin__  # type: ignore[attr-defined]
    elif property_type_origin is Union or property_type_origin is types.UnionType:
        type_args = property_type.__args__  # type: ignore[attr-defined]
        if len(type_args) == 2 and type(None) in type_args:
            # Uses the actual type T when the Union is "T | None" (or "None | T")
            return next(arg for arg in type_args if arg is not None)
        else:
            # Ignoring Union types when it is not used as type | None as we wouldn't which type to pick
            return type(None)

    return property_type