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✨ add advanced message slice support

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This commit is contained in:
Mix 2022-01-16 13:17:05 +08:00
parent 34c086a046
commit 3041650b4b
1 changed files with 47 additions and 1 deletions
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48
nonebot/adapters/_message.py
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@ -5,12 +5,14 @@ from typing import (
Any,
Dict,
List,
Tuple,
Type,
Union,
Generic,
Mapping,
TypeVar,
Iterable,
overload,
)
from ._template import MessageTemplate
@ -87,7 +89,7 @@ class MessageSegment(Mapping, abc.ABC, Generic[TM]):
raise NotImplementedError
class Message(List[TMS], abc.ABC):
class Message(List[TMS], Generic[TMS], abc.ABC):
"""消息数组"""
def __init__(
@ -180,6 +182,50 @@ class Message(List[TMS], abc.ABC):
self.extend(self._construct(other))
return self
@overload
def __getitem__(self: TM, __args: str) -> TM:
...
@overload
def __getitem__(self, __args: Tuple[str, int]) -> TMS:
...
@overload
def __getitem__(self: TM, __args: Tuple[str, slice]) -> TM:
...
@overload
def __getitem__(self, __args: int) -> TMS:
...
@overload
def __getitem__(self: TM, __args: slice) -> TM:
...
def __getitem__(
self: TM,
__args: Union[
str,
Tuple[str, int],
Tuple[str, slice],
int,
slice,
],
) -> Union[TMS, TM]:
arg1, arg2 = __args if isinstance(__args, tuple) else (__args, None)
if isinstance(arg1, int) and arg2 is None:
return super().__getitem__(arg1)
elif isinstance(arg1, slice) and arg2 is None:
return self.__class__(super().__getitem__(arg1))
elif isinstance(arg1, str) and arg2 is None:
return self.__class__(seg for seg in self if seg.type == arg1)
elif isinstance(arg1, str) and isinstance(arg2, int):
return [seg for seg in self if seg.type == arg1][arg2]
elif isinstance(arg1, str) and isinstance(arg2, slice):
return self.__class__([seg for seg in self if seg.type == arg1][arg2])
else:
raise ValueError("Invalid arguments to __getitem__")
def append(self: TM, obj: Union[str, TMS]) -> TM:
"""
添加一个消息段到消息数组末尾