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Validate and bind parent in Group.add_command

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This commit is contained in:
Rapptz 2022-03-16 07:31:40 -04:00
parent 7c0a9e901d
commit 5b8bcaff73
1 changed files with 11 additions and 1 deletions
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12
discord/app_commands/commands.py
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@ -872,7 +872,8 @@ class Group:
The command or group is already registered. Note that the :attr:`CommandAlreadyRegistered.guild_id`
attribute will always be ``None`` in this case.
ValueError
There are too many commands already registered.
There are too many commands already registered or the group is too
deeply nested.
TypeError
The wrong command type was passed.
"""
@ -880,10 +881,19 @@ class Group:
if not isinstance(command, (Command, Group)):
raise TypeError(f'expected Command or Group not {command.__class__!r}')
if isinstance(command, Group) and self.parent is not None:
# In a tree like so:
# <group>
# <self>
# <group>
# this needs to be forbidden
raise ValueError('groups can only be nested at most one level')
if not override and command.name in self._children:
raise CommandAlreadyRegistered(command.name, guild_id=None)
self._children[command.name] = command
command.parent = self
if len(self._children) > 25:
raise ValueError('maximum number of child commands exceeded')