🚧 create processor

nonebot/processor/handler.py

@@ -0,0 +1,43 @@
+"""
+事件处理函数
+============
+
+该模块实现事件处理函数的封装，以实现动态参数等功能。
+"""
+from typing import TYPE_CHECKING, List, Optional
+
+from .models import Depends
+from nonebot.utils import get_name
+from nonebot.typing import T_State, T_Handler
+from . import get_dependent, get_parameterless_sub_dependant
+
+if TYPE_CHECKING:
+    from .matcher import Matcher
+    from nonebot.adapters import Bot, Event
+
+
+class Handler:
+    """事件处理函数类"""
+
+    def __init__(self,
+                 func: T_Handler,
+                 *,
+                 name: Optional[str] = None,
+                 dependencies: Optional[List[Depends]] = None):
+        """装饰事件处理函数以便根据动态参数运行"""
+        self.func: T_Handler = func
+        """
+        :类型: ``T_Handler``
+        :说明: 事件处理函数
+        """
+        self.name = get_name(func) if name is None else name
+
+        self.dependencies = dependencies or []
+        self.dependent = get_dependent(func=func)
+        for depends in self.dependencies[::-1]:
+            self.dependent.dependencies.insert(
+                0, get_parameterless_sub_dependant(depends=depends))
+
+    def __call__(self, bot: Bot, event: Event, state: T_State,
+                 matcher: "Matcher"):
+        ...