"""本模块定义了 NoneBot 模块中共享的一些类型。 使用 Python 的 Type Hint 语法, 参考 [`PEP 484`](https://www.python.org/dev/peps/pep-0484/), [`PEP 526`](https://www.python.org/dev/peps/pep-0526/) 和 [`typing`](https://docs.python.org/3/library/typing.html)。 FrontMatter: sidebar_position: 11 description: nonebot.typing 模块 """ import sys import types import warnings import contextlib import typing as t import typing_extensions as t_ext from typing import TYPE_CHECKING, TypeVar from typing_extensions import ParamSpec, TypeAlias, get_args, override, get_origin if TYPE_CHECKING: from asyncio import Task from nonebot.adapters import Bot from nonebot.permission import Permission T = TypeVar("T") P = ParamSpec("P") T_Wrapped: TypeAlias = t.Callable[P, T] def overrides(InterfaceClass: object): """标记一个方法为父类 interface 的 implement""" warnings.warn( "overrides is deprecated and will be removed in a future version, " "use @typing_extensions.override instead. " "See [PEP 698](https://peps.python.org/pep-0698/) for more details.", DeprecationWarning, ) return override if sys.version_info < (3, 10): def origin_is_union(origin: t.Optional[t.Type[t.Any]]) -> bool: """判断是否是 Union 类型""" return origin is t.Union else: def origin_is_union(origin: t.Optional[t.Type[t.Any]]) -> bool: return origin is t.Union or origin is types.UnionType def origin_is_literal(origin: t.Optional[t.Type[t.Any]]) -> bool: """判断是否是 Literal 类型""" return origin is t.Literal or origin is t_ext.Literal def _literal_values(type_: t.Type[t.Any]) -> t.Tuple[t.Any, ...]: return get_args(type_) def all_literal_values(type_: t.Type[t.Any]) -> t.List[t.Any]: """获取 Literal 类型包含的所有值""" if not origin_is_literal(get_origin(type_)): return [type_] return [x for value in _literal_values(type_) for x in all_literal_values(value)] def origin_is_annotated(origin: t.Optional[t.Type[t.Any]]) -> bool: """判断是否是 Annotated 类型""" with contextlib.suppress(TypeError): return origin is not None and issubclass(origin, t_ext.Annotated) return False NONE_TYPES = {None, type(None), t.Literal[None], t_ext.Literal[None]} if sys.version_info >= (3, 10): NONE_TYPES.add(types.NoneType) def is_none_type(type_: t.Type[t.Any]) -> bool: """判断是否是 None 类型""" return type_ in NONE_TYPES if sys.version_info < (3, 9): # pragma: py-lt-39 def evaluate_forwardref( ref: t.ForwardRef, globalns: t.Dict[str, t.Any], localns: t.Dict[str, t.Any] ) -> t.Any: return ref._evaluate(globalns, localns) else: # pragma: py-gte-39 def evaluate_forwardref( ref: t.ForwardRef, globalns: t.Dict[str, t.Any], localns: t.Dict[str, t.Any] ) -> t.Any: return ref._evaluate(globalns, localns, frozenset()) # state T_State: TypeAlias = t.Dict[t.Any, t.Any] """事件处理状态 State 类型""" _DependentCallable: TypeAlias = t.Union[ t.Callable[..., T], t.Callable[..., t.Awaitable[T]] ] # driver hooks T_BotConnectionHook: TypeAlias = _DependentCallable[t.Any] """Bot 连接建立时钩子函数 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - DefaultParam: 带有默认值的参数 """ T_BotDisconnectionHook: TypeAlias = _DependentCallable[t.Any] """Bot 连接断开时钩子函数 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - DefaultParam: 带有默认值的参数 """ # api hooks T_CallingAPIHook: TypeAlias = t.Callable[ ["Bot", str, t.Dict[str, t.Any]], t.Awaitable[t.Any] ] """`bot.call_api` 钩子函数""" T_CalledAPIHook: TypeAlias = t.Callable[ ["Bot", t.Optional[Exception], str, t.Dict[str, t.Any], t.Any], t.Awaitable[t.Any] ] """`bot.call_api` 后执行的函数,参数分别为 bot, exception, api, data, result""" # event hooks T_EventPreProcessor: TypeAlias = _DependentCallable[t.Any] """事件预处理函数 EventPreProcessor 类型 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - DefaultParam: 带有默认值的参数 """ T_EventPostProcessor: TypeAlias = _DependentCallable[t.Any] """事件后处理函数 EventPostProcessor 类型 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - DefaultParam: 带有默认值的参数 """ # matcher run hooks T_RunPreProcessor: TypeAlias = _DependentCallable[t.Any] """事件响应器运行前预处理函数 RunPreProcessor 类型 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - MatcherParam: Matcher 对象 - DefaultParam: 带有默认值的参数 """ T_RunPostProcessor: TypeAlias = _DependentCallable[t.Any] """事件响应器运行后后处理函数 RunPostProcessor 类型 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - MatcherParam: Matcher 对象 - ExceptionParam: 异常对象(可能为 None) - DefaultParam: 带有默认值的参数 """ # rule, permission T_RuleChecker: TypeAlias = _DependentCallable[bool] """RuleChecker 即判断是否响应事件的处理函数。 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - DefaultParam: 带有默认值的参数 """ T_PermissionChecker: TypeAlias = _DependentCallable[bool] """PermissionChecker 即判断事件是否满足权限的处理函数。 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - DefaultParam: 带有默认值的参数 """ T_Handler: TypeAlias = _DependentCallable[t.Any] """Handler 处理函数。""" T_TypeUpdater: TypeAlias = _DependentCallable[str] """TypeUpdater 在 Matcher.pause, Matcher.reject 时被运行,用于更新响应的事件类型。 默认会更新为 `message`。 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - MatcherParam: Matcher 对象 - DefaultParam: 带有默认值的参数 """ T_PermissionUpdater: TypeAlias = _DependentCallable["Permission"] """PermissionUpdater 在 Matcher.pause, Matcher.reject 时被运行,用于更新会话对象权限。 默认会更新为当前事件的触发对象。 依赖参数: - DependParam: 子依赖参数 - BotParam: Bot 对象 - EventParam: Event 对象 - StateParam: State 对象 - MatcherParam: Matcher 对象 - DefaultParam: 带有默认值的参数 """ T_DependencyCache: TypeAlias = t.Dict[_DependentCallable[t.Any], "Task[t.Any]"] """依赖缓存, 用于存储依赖函数的返回值"""