GramCore/builtins/contexts.py
2024-03-16 18:44:26 +08:00

40 lines
972 B
Python

"""上下文管理"""
from contextlib import contextmanager
from contextvars import ContextVar
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from telegram.ext import CallbackContext
from telegram import Update
__all__ = [
"CallbackContextCV",
"UpdateCV",
"handler_contexts",
"job_contexts",
]
CallbackContextCV: ContextVar["CallbackContext"] = ContextVar("TelegramContextCallback")
UpdateCV: ContextVar["Update"] = ContextVar("TelegramUpdate")
@contextmanager
def handler_contexts(update: "Update", context: "CallbackContext") -> None:
context_token = CallbackContextCV.set(context)
update_token = UpdateCV.set(update)
try:
yield
finally:
CallbackContextCV.reset(context_token)
UpdateCV.reset(update_token)
@contextmanager
def job_contexts(context: "CallbackContext") -> None:
token = CallbackContextCV.set(context)
try:
yield
finally:
CallbackContextCV.reset(token)