🐛 fix cannot reject preset arg

nonebot/consts.py

@@ -3,6 +3,7 @@ RECEIVE_KEY = "_receive_{id}"
 LAST_RECEIVE_KEY = "_last_receive"
 ARG_KEY = "{key}"
 REJECT_TARGET = "_current_target"
+REJECT_CACHE_TARGET = "_next_target"
 
 # used by Rule
 PREFIX_KEY = "_prefix"

nonebot/matcher.py

@@ -28,7 +28,6 @@ from nonebot.rule import Rule
 from nonebot.log import logger
 from nonebot.dependencies import Dependent
 from nonebot.permission import USER, Permission
-from nonebot.consts import ARG_KEY, RECEIVE_KEY, REJECT_TARGET, LAST_RECEIVE_KEY
 from nonebot.adapters import (
     Bot,
     Event,
@@ -36,6 +35,13 @@ from nonebot.adapters import (
     MessageSegment,
     MessageTemplate,
 )
+from nonebot.consts import (
+    ARG_KEY,
+    RECEIVE_KEY,
+    REJECT_TARGET,
+    LAST_RECEIVE_KEY,
+    REJECT_CACHE_TARGET,
+)
 from nonebot.exception import (
     PausedException,
     StopPropagation,
@@ -432,12 +438,12 @@ class Matcher(metaclass=MatcherMeta):
         """
 
         async def _receive(event: Event, matcher: "Matcher") -> Union[None, NoReturn]:
+            matcher.set_target(RECEIVE_KEY.format(id=id))
             if matcher.get_target() == RECEIVE_KEY.format(id=id):
                 matcher.set_receive(id, event)
                 return
             if matcher.get_receive(id):
                 return
-            matcher.set_target(RECEIVE_KEY.format(id=id))
             raise RejectedException
 
         _parameterless = [params.Depends(_receive), *(parameterless or [])]
@@ -476,12 +482,13 @@ class Matcher(metaclass=MatcherMeta):
         """
 
         async def _key_getter(event: Event, matcher: "Matcher"):
+            print(key, matcher.state)
+            matcher.set_target(ARG_KEY.format(key=key))
             if matcher.get_target() == ARG_KEY.format(key=key):
                 matcher.set_arg(key, event.get_message())
                 return
             if matcher.get_arg(key):
                 return
-            matcher.set_target(ARG_KEY.format(key=key))
             if prompt is not None:
                 await matcher.send(prompt)
             raise RejectedException
@@ -654,7 +661,10 @@ class Matcher(metaclass=MatcherMeta):
     def set_arg(self, key: str, message: Message) -> None:
         self.state[ARG_KEY.format(key=key)] = message
 
-    def set_target(self, target: str) -> None:
+    def set_target(self, target: str, cache: bool = True) -> None:
+        if cache:
+            self.state[REJECT_CACHE_TARGET] = target
+        else:
             self.state[REJECT_TARGET] = target
 
     def get_target(self, default: T = None) -> Union[str, T]:
@@ -680,6 +690,11 @@ class Matcher(metaclass=MatcherMeta):
             return USER(event.get_session_id(), perm=self.permission)
         return await updater(bot=bot, event=event, state=self.state, matcher=self)
 
+    async def resolve_reject(self):
+        handler = current_handler.get()
+        self.handlers.insert(0, handler)
+        self.state[REJECT_TARGET] = self.state[REJECT_CACHE_TARGET]
+
     async def simple_run(
         self,
         bot: Bot,
@@ -734,9 +749,7 @@ class Matcher(metaclass=MatcherMeta):
             await self.simple_run(bot, event, state, stack, dependency_cache)
 
         except RejectedException:
-            handler = current_handler.get()
+            await self.resolve_reject()
-            self.handlers.insert(0, handler)
-
             type_ = await self.update_type(bot, event)
             permission = await self.update_permission(bot, event)
 

tests/plugins/matcher.py

@@ -1,6 +1,7 @@
 from nonebot import on_message
-from nonebot.adapters import Event
+from nonebot.matcher import Matcher
-from nonebot.params import ArgStr, Received, LastReceived
+from nonebot.adapters import Event, Message
+from nonebot.params import ArgStr, Received, EventMessage, LastReceived
 
 test_handle = on_message()
 
@@ -54,3 +55,19 @@ async def combine(a: str = ArgStr(), b: str = ArgStr(), r: Event = Received()):
     assert a == "text_next"
     assert b == "text_next"
     assert str(r.get_message()) == "text_next"
+
+
+test_preset = on_message()
+
+
+@test_preset.handle()
+async def preset(matcher: Matcher, message: Message = EventMessage()):
+    matcher.set_arg("a", message)
+
+
+@test_preset.got("a")
+async def reject_preset(a: str = ArgStr()):
+    if a == "text":
+        await test_preset.reject_arg("a")
+
+    assert a == "text_next"

tests/test_matcher.py

@@ -9,6 +9,7 @@ async def test_matcher(app: App, load_plugin):
     from plugins.matcher import (
         test_got,
         test_handle,
+        test_preset,
         test_combine,
         test_receive,
     )
@@ -58,3 +59,10 @@ async def test_matcher(app: App, load_plugin):
         ctx.receive_event(bot, event_next)
         ctx.should_rejected()
         ctx.receive_event(bot, event_next)
+
+    assert len(test_preset.handlers) == 2
+    async with app.test_matcher(test_preset) as ctx:
+        bot = ctx.create_bot()
+        ctx.receive_event(bot, event)
+        ctx.should_rejected()
+        ctx.receive_event(bot, event_next)