def get_function_return_type()

in azure_functions_worker/functions.py [0:0]

• 32 lines of code
• 12 McCabe index (conditional complexity)

    def get_function_return_type(annotations: dict, has_explicit_return: bool,
                                 has_implicit_return: bool, binding_name: str,
                                 func_name: str):
        return_pytype = None
        if has_explicit_return and 'return' in annotations:
            return_anno = annotations.get('return')
            if typing_inspect.is_generic_type(
                    return_anno) and typing_inspect.get_origin(
                    return_anno).__name__ == 'Out':
                raise FunctionLoadError(
                    func_name,
                    'return annotation should not be azure.functions.Out')

            return_pytype = return_anno
            if not isinstance(return_pytype, type):
                raise FunctionLoadError(
                    func_name,
                    f'has invalid non-type return '
                    f'annotation {return_pytype!r}')

            if return_pytype is (str, bytes):
                binding_name = 'generic'

            if not bindings_utils.check_output_type_annotation(
                    binding_name, return_pytype):
                raise FunctionLoadError(
                    func_name,
                    f'Python return annotation "{return_pytype.__name__}" '
                    f'does not match binding type "{binding_name}"')

        if has_implicit_return and 'return' in annotations:
            return_pytype = annotations.get('return')

        return_type = None
        if has_explicit_return or has_implicit_return:
            return_type = ParamTypeInfo(binding_name, return_pytype)

        return return_type