Use channel classes instead of their names

Author: Dorukyum

discord/commands/options.py

@@ -26,6 +26,8 @@
 from typing import Any, Dict, List, Literal, Optional, Union
 from enum import Enum
 
+from ..abc import GuildChannel
+from ..channel import TextChannel, VoiceChannel, StageChannel, CategoryChannel, Thread
 from ..enums import ChannelType, SlashCommandOptionType, Enum as DiscordEnum
 
 __all__ = (
@@ -35,12 +37,12 @@
     "option",
 )
 
-channel_type_map = {
-    "TextChannel": ChannelType.text,
-    "VoiceChannel": ChannelType.voice,
-    "StageChannel": ChannelType.stage_voice,
-    "CategoryChannel": ChannelType.category,
-    "Thread": ChannelType.public_thread,
+CHANNEL_TYPE_MAP = {
+    TextChannel: ChannelType.text,
+    VoiceChannel: ChannelType.voice,
+    StageChannel: ChannelType.stage_voice,
+    CategoryChannel: ChannelType.category,
+    Thread: ChannelType.public_thread,
 }
 
 
@@ -61,10 +63,6 @@ def __init__(self, thread_type: Literal["public", "private", "news"]):
         }
         self._type = type_map[thread_type]
 
-    @property
-    def __name__(self):
-        return "ThreadOption"
-
 
 class Option:
     """Represents a selectable option for a slash command.
@@ -165,13 +163,13 @@ def __init__(self, input_type: Any = str, /, description: Optional[str] = None,
                             else:
                                 input_type = (input_type,)
                         for i in input_type:
-                            if i.__name__ == "GuildChannel":
+                            if isinstance(i, type) and issubclass(i, GuildChannel):
                                 continue
                             if isinstance(i, ThreadOption):
                                 self.channel_types.append(i._type)
                                 continue
 
-                            channel_type = channel_type_map[i.__name__]
+                            channel_type = CHANNEL_TYPE_MAP[i]
                             self.channel_types.append(channel_type)
                     input_type = _type
         self.input_type = input_type