core/homeassistant/util/decorator.py

19 lines
536 B
Python

"""Decorator utility functions."""
from typing import Callable, TypeVar
CALLABLE_T = TypeVar("CALLABLE_T", bound=Callable) # pylint: disable=invalid-name
class Registry(dict):
"""Registry of items."""
def register(self, name: str) -> Callable[[CALLABLE_T], CALLABLE_T]:
"""Return decorator to register item with a specific name."""
def decorator(func: CALLABLE_T) -> CALLABLE_T:
"""Register decorated function."""
self[name] = func
return func
return decorator