From 75df494de277b3655cc9b0b7c82ad5d1e21fce61 Mon Sep 17 00:00:00 2001
From: yanyongyu <yanyongyu_1@126.com>
Date: Sun, 13 Sep 2020 22:36:40 +0800
Subject: [PATCH] :zap: using set for rule and perm

---
 nonebot/permission.py |  2 +-
 nonebot/rule.py       | 18 ++++++++++++++----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/nonebot/permission.py b/nonebot/permission.py
index 9cd104bb..22a2c66b 100644
--- a/nonebot/permission.py
+++ b/nonebot/permission.py
@@ -30,7 +30,7 @@ class Permission:
         if isinstance(other, Permission):
             checkers |= other.checkers
         elif asyncio.iscoroutinefunction(other):
-            checkers.add(other)
+            checkers.add(other)  # type: ignore
         else:
             checkers.add(run_sync(other))
         return Permission(*checkers)
diff --git a/nonebot/rule.py b/nonebot/rule.py
index 3f34f511..d2f33fcf 100644
--- a/nonebot/rule.py
+++ b/nonebot/rule.py
@@ -155,19 +155,29 @@ class TrieRule:
 
 
 def startswith(msg: str) -> Rule:
-    TrieRule.add_prefix(msg, (msg,))
+    """
+    :说明:
+      匹配消息开头
+    :参数:
+      * ``msg: str``: 消息开头字符串
+    """
 
     async def _startswith(bot: Bot, event: Event, state: dict) -> bool:
-        return msg in state["_prefix"]
+        return event.plain_text.startswith(msg)
 
     return Rule(_startswith)
 
 
 def endswith(msg: str) -> Rule:
-    TrieRule.add_suffix(msg, (msg,))
+    """
+    :说明:
+      匹配消息结尾
+    :参数:
+      * ``msg: str``: 消息结尾字符串
+    """
 
     async def _endswith(bot: Bot, event: Event, state: dict) -> bool:
-        return msg in state["_suffix"]
+        return event.plain_text.endswith(msg)
 
     return Rule(_endswith)