def dispatch(obj: B,
tpes: typing.List[A],
prefix: str,
default: Callable[[A], R] = None) -> Callable[[A], R]:
@singledispatch
def main(o: A, *a: Any, **kw: Any) -> R:
if default is None:
msg = 'no dispatcher defined for {} on {} {}'
raise TypeError(msg.format(o, obj.__class__.__name__, prefix))
else:
return default(o, *a, **kw)
for tpe in tpes:
fun = getattr(obj, '{}{}'.format(prefix, snake_case(tpe.__name__)))
main.register(tpe)(fun)
return main
def _infer_implicits(name: str) -> Tuple[str, str]:
snake = snake_case(name)
return 'amino.instances.{}'.format(snake), '{}Instances'.format(name)
def infer_implicits_module(name: str) -> str:
snake = snake_case(name)
return 'amino.instances.{}'.format(snake)