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Add support for star/stop values on index

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See https://github.com/Textualize/textual/pull/1495#pullrequestreview-1238616797
This commit is contained in:
Dave Pearson
2023-01-06 12:31:59 +00:00
committed by Rodrigo Girão Serrão
parent 2bf41fe428
commit 1e8162e8d0
1 changed files with 5 additions and 2 deletions
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7
src/textual/_immutable_sequence_view.py
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@@ -1,6 +1,7 @@
"""Provides an immutable sequence view class.""" """Provides an immutable sequence view class."""
from __future__ import annotations from __future__ import annotations
from sys import maxsize
from typing import Generic, TypeVar, Iterator, overload, Sequence from typing import Generic, TypeVar, Iterator, overload, Sequence
T = TypeVar("T") T = TypeVar("T")
@@ -47,11 +48,13 @@ class ImmutableSequenceView(Generic[T]):
def __contains__(self, item: T) -> bool: def __contains__(self, item: T) -> bool:
return item in self._wrap return item in self._wrap
def index(self, item: T) -> int: def index(self, item: T, start: int = 0, stop: int = maxsize) -> int:
"""Return the index of the given item. """Return the index of the given item.
Args: Args:
item (T): The item to find in the sequence. item (T): The item to find in the sequence.
start (int, optional): Optional start location.
stop (int, optional): Optional stop location.
Returns: Returns:
T: The index of the item in the sequence. T: The index of the item in the sequence.
@@ -59,7 +62,7 @@ class ImmutableSequenceView(Generic[T]):
Raises: Raises:
ValueError: If the item is not in the sequence. ValueError: If the item is not in the sequence.
""" """
return self._wrap.index(item) return self._wrap.index(item, start, stop)
def __reversed__(self) -> Iterator[T]: def __reversed__(self) -> Iterator[T]:
return reversed(self._wrap) return reversed(self._wrap)