✨ Feature: 为事件响应器添加更多源码信息 (#2351)

nonebot/internal/matcher/__init__.py

@@ -6,6 +6,7 @@ matchers = MatcherManager()
 
 from .matcher import Matcher as Matcher
 from .matcher import current_bot as current_bot
+from .matcher import MatcherSource as MatcherSource
 from .matcher import current_event as current_event
 from .matcher import current_handler as current_handler
 from .matcher import current_matcher as current_matcher

nonebot/internal/matcher/matcher.py

@@ -1,4 +1,9 @@
+import sys
+import inspect
+import warnings
+from pathlib import Path
 from types import ModuleType
+from dataclasses import dataclass
 from contextvars import ContextVar
 from typing_extensions import Self
 from datetime import datetime, timedelta
@@ -20,6 +25,7 @@ from typing import (
 
 from nonebot.log import logger
 from nonebot.internal.rule import Rule
+from nonebot.utils import classproperty
 from nonebot.dependencies import Dependent
 from nonebot.internal.permission import User, Permission
 from nonebot.internal.adapter import (
@@ -74,15 +80,51 @@ current_matcher: ContextVar["Matcher"] = ContextVar("current_matcher")
 current_handler: ContextVar[Dependent] = ContextVar("current_handler")
 
 
+@dataclass
+class MatcherSource:
+    """Matcher 源代码上下文信息"""
+
+    plugin_name: Optional[str] = None
+    """事件响应器所在插件名称"""
+    module_name: Optional[str] = None
+    """事件响应器所在插件模块的路径名"""
+    lineno: Optional[int] = None
+    """事件响应器所在行号"""
+
+    @property
+    def plugin(self) -> Optional["Plugin"]:
+        """事件响应器所在插件"""
+        from nonebot.plugin import get_plugin
+
+        if self.plugin_name is not None:
+            return get_plugin(self.plugin_name)
+
+    @property
+    def module(self) -> Optional[ModuleType]:
+        if self.module_name is not None:
+            return sys.modules.get(self.module_name)
+
+    @property
+    def file(self) -> Optional[Path]:
+        if self.module is not None and (file := inspect.getsourcefile(self.module)):
+            return Path(file).absolute()
+
+
 class MatcherMeta(type):
     if TYPE_CHECKING:
-        module_name: Optional[str]
         type: str
+        _source: Optional[MatcherSource]
+        module_name: Optional[str]
 
     def __repr__(self) -> str:
         return (
             f"{self.__name__}(type={self.type!r}"
             + (f", module={self.module_name}" if self.module_name else "")
+            + (
+                f", lineno={self._source.lineno}"
+                if self._source and self._source.lineno is not None
+                else ""
+            )
             + ")"
         )
 
@@ -90,14 +132,7 @@ class MatcherMeta(type):
 class Matcher(metaclass=MatcherMeta):
     """事件响应器类"""
 
-    plugin: ClassVar[Optional["Plugin"]] = None
-    """事件响应器所在插件"""
-    module: ClassVar[Optional[ModuleType]] = None
-    """事件响应器所在插件模块"""
-    plugin_name: ClassVar[Optional[str]] = None
-    """事件响应器所在插件名"""
-    module_name: ClassVar[Optional[str]] = None
-    """事件响应器所在点分割插件模块路径"""
+    _source: ClassVar[Optional[MatcherSource]] = None
 
     type: ClassVar[str] = ""
     """事件响应器类型"""
@@ -142,6 +177,11 @@ class Matcher(metaclass=MatcherMeta):
         return (
             f"{self.__class__.__name__}(type={self.type!r}"
             + (f", module={self.module_name}" if self.module_name else "")
+            + (
+                f", lineno={self._source.lineno}"
+                if self._source and self._source.lineno is not None
+                else ""
+            )
             + ")"
         )
 
@@ -158,6 +198,7 @@ class Matcher(metaclass=MatcherMeta):
         *,
         plugin: Optional["Plugin"] = None,
         module: Optional[ModuleType] = None,
+        source: Optional[MatcherSource] = None,
         expire_time: Optional[Union[datetime, timedelta]] = None,
         default_state: Optional[T_State] = None,
         default_type_updater: Optional[Union[T_TypeUpdater, Dependent[str]]] = None,
@@ -176,22 +217,47 @@ class Matcher(metaclass=MatcherMeta):
             temp: 是否为临时事件响应器，即触发一次后删除
             priority: 响应优先级
             block: 是否阻止事件向更低优先级的响应器传播
-            plugin: 事件响应器所在插件
-            module: 事件响应器所在模块
-            default_state: 默认状态 `state`
+            plugin: **Deprecated.** 事件响应器所在插件
+            module: **Deprecated.** 事件响应器所在模块
+            source: 事件响应器源代码上下文信息
             expire_time: 事件响应器最终有效时间点，过时即被删除
+            default_state: 默认状态 `state`
+            default_type_updater: 默认事件类型更新函数
+            default_permission_updater: 默认会话权限更新函数
 
         返回:
             Type[Matcher]: 新的事件响应器类
         """
+        if plugin is not None:
+            warnings.warn(
+                (
+                    "Pass `plugin` context info to create Matcher is deprecated. "
+                    "Use `source` instead."
+                ),
+                DeprecationWarning,
+            )
+        if module is not None:
+            warnings.warn(
+                (
+                    "Pass `module` context info to create Matcher is deprecated. "
+                    "Use `source` instead."
+                ),
+                DeprecationWarning,
+            )
+        source = source or (
+            MatcherSource(
+                plugin_name=plugin and plugin.name,
+                module_name=module and module.__name__,
+            )
+            if plugin is not None or module is not None
+            else None
+        )
+
         NewMatcher = type(
             cls.__name__,
             (cls,),
             {
-                "plugin": plugin,
-                "module": module,
-                "plugin_name": plugin and plugin.name,
-                "module_name": module and module.__name__,
+                "_source": source,
                 "type": type_,
                 "rule": rule or Rule(),
                 "permission": permission or Permission(),
@@ -253,6 +319,26 @@ class Matcher(metaclass=MatcherMeta):
         """销毁当前的事件响应器"""
         matchers[cls.priority].remove(cls)
 
+    @classproperty
+    def plugin(cls) -> Optional["Plugin"]:
+        """事件响应器所在插件"""
+        return cls._source and cls._source.plugin
+
+    @classproperty
+    def module(cls) -> Optional[ModuleType]:
+        """事件响应器所在插件模块"""
+        return cls._source and cls._source.module
+
+    @classproperty
+    def plugin_name(cls) -> Optional[str]:
+        """事件响应器所在插件名"""
+        return cls._source and cls._source.plugin_name
+
+    @classproperty
+    def module_name(cls) -> Optional[str]:
+        """事件响应器所在插件模块路径"""
+        return cls._source and cls._source.module_name
+
     @classmethod
     async def check_perm(
         cls,
@@ -773,8 +859,7 @@ class Matcher(metaclass=MatcherMeta):
                 temp=True,
                 priority=0,
                 block=True,
-                plugin=self.plugin,
-                module=self.module,
+                source=self.__class__._source,
                 expire_time=bot.config.session_expire_timeout,
                 default_state=self.state,
                 default_type_updater=self.__class__._default_type_updater,
@@ -794,8 +879,7 @@ class Matcher(metaclass=MatcherMeta):
                 temp=True,
                 priority=0,
                 block=True,
-                plugin=self.plugin,
-                module=self.module,
+                source=self.__class__._source,
                 expire_time=bot.config.session_expire_timeout,
                 default_state=self.state,
                 default_type_updater=self.__class__._default_type_updater,

nonebot/matcher.py

@@ -8,6 +8,7 @@ FrontMatter:
 from nonebot.internal.matcher import Matcher as Matcher
 from nonebot.internal.matcher import matchers as matchers
 from nonebot.internal.matcher import current_bot as current_bot
+from nonebot.internal.matcher import MatcherSource as MatcherSource
 from nonebot.internal.matcher import current_event as current_event
 from nonebot.internal.matcher import MatcherManager as MatcherManager
 from nonebot.internal.matcher import MatcherProvider as MatcherProvider

nonebot/plugin/on.py

@@ -7,14 +7,15 @@ FrontMatter:
 
 import re
 import inspect
+import warnings
 from types import ModuleType
 from datetime import datetime, timedelta
 from typing import Any, Set, Dict, List, Type, Tuple, Union, Optional
 
 from nonebot.adapters import Event
-from nonebot.matcher import Matcher
 from nonebot.permission import Permission
 from nonebot.dependencies import Dependent
+from nonebot.matcher import Matcher, MatcherSource
 from nonebot.typing import T_State, T_Handler, T_RuleChecker, T_PermissionChecker
 from nonebot.rule import (
     Rule,
@@ -45,25 +46,39 @@ def store_matcher(matcher: Type[Matcher]) -> None:
         plugin_chain[-1].matcher.add(matcher)
 
 
-def get_matcher_plugin(depth: int = 1) -> Optional[Plugin]:
+def get_matcher_plugin(depth: int = 1) -> Optional[Plugin]:  # pragma: no cover
     """获取事件响应器定义所在插件。
 
+    **Deprecated**, 请使用 {ref}`nonebot.plugin.on.get_matcher_source` 获取信息。
+
     参数:
         depth: 调用栈深度
     """
-    # matcher defined when plugin loading
-    if plugin_chain := _current_plugin_chain.get():
-        return plugin_chain[-1]
-
-    # matcher defined when plugin running
-    if module := get_matcher_module(depth + 1):
-        if plugin := get_plugin_by_module_name(module.__name__):
-            return plugin
+    warnings.warn(
+        "`get_matcher_plugin` is deprecated, please use `get_matcher_source` instead",
+        DeprecationWarning,
+    )
+    return (source := get_matcher_source(depth + 1)) and source.plugin
 
 
-def get_matcher_module(depth: int = 1) -> Optional[ModuleType]:
+def get_matcher_module(depth: int = 1) -> Optional[ModuleType]:  # pragma: no cover
     """获取事件响应器定义所在模块。
 
+    **Deprecated**, 请使用 {ref}`nonebot.plugin.on.get_matcher_source` 获取信息。
+
+    参数:
+        depth: 调用栈深度
+    """
+    warnings.warn(
+        "`get_matcher_module` is deprecated, please use `get_matcher_source` instead",
+        DeprecationWarning,
+    )
+    return (source := get_matcher_source(depth + 1)) and source.module
+
+
+def get_matcher_source(depth: int = 1) -> Optional[MatcherSource]:
+    """获取事件响应器定义所在源码信息。
+
     参数:
         depth: 调用栈深度
     """
@@ -71,7 +86,22 @@ def get_matcher_module(depth: int = 1) -> Optional[ModuleType]:
     if current_frame is None:
         return None
     frame = inspect.getouterframes(current_frame)[depth + 1].frame
-    return inspect.getmodule(frame)
+
+    module_name = (module := inspect.getmodule(frame)) and module.__name__
+
+    plugin: Optional["Plugin"] = None
+    # matcher defined when plugin loading
+    if plugin_chain := _current_plugin_chain.get():
+        plugin = plugin_chain[-1]
+    # matcher defined when plugin running
+    elif module_name:
+        plugin = get_plugin_by_module_name(module_name)
+
+    return MatcherSource(
+        plugin_name=plugin and plugin.name,
+        module_name=module_name,
+        lineno=frame.f_lineno,
+    )
 
 
 def on(
@@ -109,8 +139,7 @@ def on(
         priority=priority,
         block=block,
         handlers=handlers,
-        plugin=get_matcher_plugin(_depth + 1),
-        module=get_matcher_module(_depth + 1),
+        source=get_matcher_source(_depth + 1),
         default_state=state,
     )
     store_matcher(matcher)

nonebot/plugin/on.pyi

@@ -4,10 +4,10 @@ from types import ModuleType
 from datetime import datetime, timedelta
 
 from nonebot.adapters import Event
-from nonebot.matcher import Matcher
 from nonebot.permission import Permission
 from nonebot.dependencies import Dependent
 from nonebot.rule import Rule, ArgumentParser
+from nonebot.matcher import Matcher, MatcherSource
 from nonebot.typing import T_State, T_Handler, T_RuleChecker, T_PermissionChecker
 
 from .plugin import Plugin
@@ -15,6 +15,7 @@ from .plugin import Plugin
 def store_matcher(matcher: type[Matcher]) -> None: ...
 def get_matcher_plugin(depth: int = ...) -> Plugin | None: ...
 def get_matcher_module(depth: int = ...) -> ModuleType | None: ...
+def get_matcher_source(depth: int = ...) -> MatcherSource | None: ...
 def on(
     type: str = "",
     rule: Rule | T_RuleChecker | None = ...,

nonebot/utils.py

@@ -21,6 +21,7 @@ from typing import (
     Type,
     Tuple,
     Union,
+    Generic,
     TypeVar,
     Callable,
     Optional,
@@ -220,6 +221,16 @@ def resolve_dot_notation(
     return instance
 
 
+class classproperty(Generic[T]):
+    """类属性装饰器"""
+
+    def __init__(self, func: Callable[[Any], T]) -> None:
+        self.func = func
+
+    def __get__(self, instance: Any, owner: Optional[Type[Any]] = None) -> T:
+        return self.func(type(instance) if owner is None else owner)
+
+
 class DataclassEncoder(json.JSONEncoder):
     """可以序列化 {ref}`nonebot.adapters.Message`(List[Dataclass]) 的 `JSONEncoder`"""
 

tests/.coveragerc

@@ -11,6 +11,7 @@ exclude_lines =
   if (typing\.)?TYPE_CHECKING( is True)?:
   @(abc\.)?abstractmethod
   raise NotImplementedError
+  warnings\.warn
   \.\.\.
   pass
   if __name__ == .__main__.:

tests/plugins/matcher/matcher_info.py

@@ -0,0 +1,3 @@
+from nonebot import on
+
+matcher = on("message", temp=False, expire_time=None, priority=1, block=True)

tests/test_matcher/test_matcher.py

@@ -1,12 +1,45 @@
+import sys
+from pathlib import Path
+
 import pytest
 from nonebug import App
 
+from nonebot import get_plugin
 from nonebot.permission import User
 from nonebot.matcher import Matcher, matchers
 from utils import FakeMessage, make_fake_event
 from nonebot.message import check_and_run_matcher
 
 
+@pytest.mark.asyncio
+async def test_matcher_info(app: App):
+    from plugins.matcher.matcher_info import matcher
+
+    assert issubclass(matcher, Matcher)
+    assert matcher.type == "message"
+    assert matcher.priority == 1
+    assert matcher.temp is False
+    assert matcher.expire_time is None
+    assert matcher.block is True
+
+    assert matcher._source
+
+    assert matcher._source.module_name == "plugins.matcher.matcher_info"
+    assert matcher.module is sys.modules["plugins.matcher.matcher_info"]
+    assert matcher.module_name == "plugins.matcher.matcher_info"
+
+    assert matcher._source.plugin_name == "matcher_info"
+    assert matcher.plugin is get_plugin("matcher_info")
+    assert matcher.plugin_name == "matcher_info"
+
+    assert (
+        matcher._source.file
+        == (Path(__file__).parent.parent / "plugins/matcher/matcher_info.py").absolute()
+    )
+
+    assert matcher._source.lineno == 3
+
+
 @pytest.mark.asyncio
 async def test_matcher_handle(app: App):
     from plugins.matcher.matcher_process import test_handle