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✨ ⚡ Implement .count and optimize .get performance for message slice

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This commit is contained in:
Mix 2022-01-17 00:28:36 +08:00
parent 1221baaa94
commit 3b4c4d3081
1 changed files with 15 additions and 8 deletions
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23
nonebot/adapters/_message.py
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@ -12,6 +12,7 @@ from typing import (
Mapping,
TypeVar,
Iterable,
Optional,
overload,
)
@ -232,14 +233,20 @@ class Message(List[TMS], abc.ABC):
return super().index(first_segment, *args) # type: ignore
return super().index(value, *args)
def get(self: TM, type_: str, count: int) -> TM:
iterator = (seg for seg in self if seg.type == type_)
return self.__class__(
filter(
lambda seg: seg is not None,
(next(iterator) for _ in range(count)),
)
)
def get(self: TM, type_: str, count: Optional[int] = None) -> TM:
if count is None:
return self[type_]
iterator, filtered = (seg for seg in self if seg.type == type_), []
for _ in range(count):
seg = next(iterator, None)
if seg is None:
break
filtered.append(seg)
return self.__class__(filtered)
def count(self, value: Union[TMS, str]) -> int:
return len(self[value]) if isinstance(value, str) else super().count(value)
def append(self: TM, obj: Union[str, TMS]) -> TM:
"""