Code cleanup involving enums and message replies

4 files changed, 80 insertions, 101 deletions

diff --git a/discord/abc.py b/discord/abc.py
index 4968ce1b..559dbde8 100644
--- a/discord/abc.py
+++ b/discord/abc.py
@@ -39,7 +39,6 @@ from .invite import Invite
 from .file import File
 from .voice_client import VoiceClient, VoiceProtocol
 from . import utils
-from .message_reference import _MessageType, MessageReference
 
 class _Undefined:
     def __repr__(self):
@@ -897,15 +896,13 @@ class Messageable(metaclass=abc.ABCMeta):
 
         if mention_author is not None:
             allowed_mentions = allowed_mentions or {}
-            allowed_mentions['replied_user'] = mention_author
+            allowed_mentions['replied_user'] = bool(mention_author)
 
         if reference is not None:
-            if isinstance(reference, _MessageType):
-                if not isinstance(reference, MessageReference):
-                    reference = reference.to_reference()
-                reference = reference.to_dict()
-            else:
-                raise InvalidArgument('reference parameter must be Message or MessageReference')
+            try:
+                reference = reference.to_message_reference_dict()
+            except AttributeError:
+                raise InvalidArgument('reference parameter must be Message or MessageReference') from None
 
         if file is not None and files is not None:
             raise InvalidArgument('cannot pass both file and files parameter to send()')
diff --git a/discord/enums.py b/discord/enums.py
index 871d7e49..fff7a153 100644
--- a/discord/enums.py
+++ b/discord/enums.py
@@ -446,6 +446,11 @@ class ExpireBehaviour(Enum):
 
 ExpireBehavior = ExpireBehaviour
 
+class StickerType(Enum):
+    png = 1
+    apng = 2
+    lottie = 3
+
 def try_enum(cls, val):
     """A function that tries to turn the value into enum ``cls``.
 
@@ -456,8 +461,3 @@ def try_enum(cls, val):
         return cls._enum_value_map_[val]
     except (KeyError, TypeError, AttributeError):
         return val
-
-class StickerType(Enum):
-    png = 1
-    apng = 2
-    lottie = 3
diff --git a/discord/message.py b/discord/message.py
index d1928464..3144c7ad 100644
--- a/discord/message.py
+++ b/discord/message.py
@@ -44,7 +44,6 @@ from .utils import escape_mentions
 from .guild import Guild
 from .mixins import Hashable
 from .mentions import AllowedMentions
-from .message_reference import _MessageType, MessageReference
 from .sticker import Sticker
 
 
@@ -213,6 +212,64 @@ class Attachment:
         return File(io.BytesIO(data), filename=self.filename, spoiler=spoiler)
 
 
+class MessageReference:
+    """Represents a reference to a :class:`~discord.Message`.
+
+    .. versionadded:: 1.5
+
+    Attributes
+    -----------
+    message_id: Optional[:class:`int`]
+        The id of the message referenced.
+    channel_id: :class:`int`
+        The channel id of the message referenced.
+    guild_id: Optional[:class:`int`]
+        The guild id of the message referenced.
+    """
+
+    __slots__ = ('message_id', 'channel_id', 'guild_id', '_state')
+
+    def __init__(self, state, **kwargs):
+        self.message_id = utils._get_as_snowflake(kwargs, 'message_id')
+        self.channel_id = int(kwargs.pop('channel_id'))
+        self.guild_id = utils._get_as_snowflake(kwargs, 'guild_id')
+        self._state = state
+
+    @classmethod
+    def from_message(cls, message):
+        """Creates a :class:`MessageReference` from an existing :class:`~discord.Message`.
+
+        .. versionadded:: 1.6
+
+        Parameters
+        ----------
+        message: :class:`~discord.Message`
+            The message to be converted into a reference.
+
+        Returns
+        -------
+        :class:`MessageReference`
+            A reference to the message.
+        """
+        return cls(message._state, message_id=message.id, channel_id=message.channel.id, guild_id=getattr(message.guild, 'id', None))
+
+    @property
+    def cached_message(self):
+        """Optional[:class:`~discord.Message`]: The cached message, if found in the internal message cache."""
+        return self._state._get_message(self.message_id)
+
+    def __repr__(self):
+        return '<MessageReference message_id={0.message_id!r} channel_id={0.channel_id!r} guild_id={0.guild_id!r}>'.format(self)
+
+    def to_dict(self):
+        result = {'message_id': self.message_id} if self.message_id is not None else {}
+        result['channel_id'] = self.channel_id
+        if self.guild_id is not None:
+            result['guild_id'] = self.guild_id
+        return result
+
+    to_message_reference_dict = to_dict
+
 def flatten_handlers(cls):
     prefix = len('_handle_')
     handlers = [
@@ -230,7 +287,7 @@ def flatten_handlers(cls):
     return cls
 
 @flatten_handlers
-class Message(Hashable, _MessageType):
+class Message(Hashable):
     r"""Represents a message from Discord.
 
     There should be no need to create one of these manually.
@@ -1158,3 +1215,14 @@ class Message(Hashable, _MessageType):
         """
 
         return MessageReference.from_message(self)
+
+    def to_message_reference_dict(self):
+        data = {
+            'message_id': self.id,
+            'channel_id': self.channel.id,
+        }
+
+        if self.guild is not None:
+            data['guild_id'] = self.guild.id
+
+        return data
diff --git a/discord/message_reference.py b/discord/message_reference.py
deleted file mode 100644
index 3dcb7871..00000000
--- a/discord/message_reference.py
+++ /dev/null
@@ -1,86 +0,0 @@
-# -*- coding: utf-8 -*-
-
-"""
-The MIT License (MIT)
-
-Copyright (c) 2015-2020 Rapptz
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
-"""
-
-from . import utils
-
-class _MessageType:
-    __slots__ = ()
-
-class MessageReference(_MessageType):
-    """Represents a reference to a :class:`~discord.Message`.
-
-    .. versionadded:: 1.5
-
-    Attributes
-    -----------
-    message_id: Optional[:class:`int`]
-        The id of the message referenced.
-    channel_id: :class:`int`
-        The channel id of the message referenced.
-    guild_id: Optional[:class:`int`]
-        The guild id of the message referenced.
-    """
-
-    __slots__ = ('message_id', 'channel_id', 'guild_id', '_state')
-
-    def __init__(self, state, **kwargs):
-        self.message_id = utils._get_as_snowflake(kwargs, 'message_id')
-        self.channel_id = int(kwargs.pop('channel_id'))
-        self.guild_id = utils._get_as_snowflake(kwargs, 'guild_id')
-        self._state = state
-
-    @classmethod
-    def from_message(cls, message):
-        """Creates a :class:`MessageReference` from an existing :class:`~discord.Message`.
-
-        .. versionadded:: 1.6
-
-        Parameters
-        ----------
-        message: :class:`~discord.Message`
-            The message to be converted into a reference.
-
-        Returns
-        -------
-        :class:`MessageReference`
-            A reference to the message.
-        """
-        return cls(message._state, message_id=message.id, channel_id=message.channel.id, guild_id=getattr(message.guild, 'id', None))
-
-    @property
-    def cached_message(self):
-        """Optional[:class:`~discord.Message`]: The cached message, if found in the internal message cache."""
-        return self._state._get_message(self.message_id)
-
-    def __repr__(self):
-        return '<MessageReference message_id={0.message_id!r} channel_id={0.channel_id!r} guild_id={0.guild_id!r}>'.format(self)
-
-    def to_dict(self):
-        result = {'message_id': self.message_id} if self.message_id is not None else {}
-        result['channel_id'] = self.channel_id
-        if self.guild_id is not None:
-            result['guild_id'] = self.guild_id
-        return result