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Make current_arg_text and current_arg_images readonly properties

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This commit is contained in:
Richard Chien 2019-01-25 13:48:28 +08:00
parent 73838ac46a
commit 1fd740d223
1 changed files with 34 additions and 13 deletions
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47
nonebot/command/__init__.py
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@ -260,8 +260,8 @@ class SwitchException(Exception):
class CommandSession(BaseSession):
__slots__ = ('cmd', 'current_key', 'current_arg', 'current_arg_filters',
'current_arg_text', 'current_arg_images',
__slots__ = ('cmd', 'current_key', 'current_arg_filters',
'current_arg', '_current_arg_text', '_current_arg_images',
'_state', '_last_interaction', '_running')
def __init__(self, bot: NoneBot, ctx: Context_T, cmd: Command, *,
@ -272,18 +272,19 @@ class CommandSession(BaseSession):
# unique key of the argument that is currently requesting (asking)
self.current_key: Optional[str] = None
# initialize current argument
self.current_arg: str = '' # with potential CQ codes
self.current_arg_text: str = '' # without any CQ codes TODO: property
self.current_arg_images: List[str] = [] # image urls
self.refresh(ctx, current_arg=current_arg) # fill the above
# initialize current argument filters
self.current_arg_filters: Optional[List[ArgFilter_T]] = None
# initialize current argument
self.current_arg: str = '' # with potential CQ codes
self._current_arg_text = None
self._current_arg_images = None
self.refresh(ctx, current_arg=current_arg) # fill the above
self._state: State_T = {}
if args:
self._state.update(args)
self._last_interaction = None # last interaction time of this session
self._running = False
@ -335,6 +336,28 @@ class CommandSession(BaseSession):
"""
return self.state.get('argv', [])
@property
def current_arg_text(self) -> str:
"""
Plain text part in the current argument, without any CQ codes.
"""
if self._current_arg_text is None:
self._current_arg_text = Message(
self.current_arg).extract_plain_text()
return self._current_arg_text
@property
def current_arg_images(self) -> List[str]:
"""
Images (as list of urls) in the current argument.
"""
if self._current_arg_images is None:
self._current_arg_images = [
s.data['url'] for s in Message(self.current_arg)
if s.type == 'image' and 'url' in s.data
]
return self._current_arg_images
def refresh(self, ctx: Context_T, *, current_arg: str = '') -> None:
"""
Refill the session with a new message context.
@ -344,10 +367,8 @@ class CommandSession(BaseSession):
"""
self.ctx = ctx
self.current_arg = current_arg
current_arg_as_msg = Message(current_arg)
self.current_arg_text = current_arg_as_msg.extract_plain_text()
self.current_arg_images = [s.data['url'] for s in current_arg_as_msg
if s.type == 'image' and 'url' in s.data]
self._current_arg_text = None
self._current_arg_images = None
def get(self, key: str, *,
prompt: Optional[Message_T] = None,
@ -363,7 +384,7 @@ class CommandSession(BaseSession):
:param key: argument key
:param prompt: prompt to ask the user
:param arg_filters: argument filters for next user input
:param arg_filters: argument filters for the next user input
:return: the argument value
"""
if key in self.state: