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# SPDX-License-Identifer: Apache-2.0
# Copyright 2020 The Meson development team
# Copyright © 2020-2021 Intel Corporation
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Meson specific typing helpers.
Holds typing helper classes, such as the ImmutableProtocol classes
"""
__all__ = [
'Protocol',
'ImmutableListProtocol'
]
import typing
# We can change this to typing when we require python 3.8
from typing_extensions import Protocol
T = typing.TypeVar('T')
class StringProtocol(Protocol):
def __str__(self) -> str: ...
class SizedStringProtocol(Protocol, StringProtocol, typing.Sized):
pass
class ImmutableListProtocol(Protocol[T]):
"""A protocol used in cases where a list is returned, but should not be
mutated.
This provides all of the methods of a Sequence, as well as copy(). copy()
returns a list, which allows mutation as it's a copy and that's (hopefully)
safe.
One particular case this is important is for cached values, since python is
a pass-by-reference language.
"""
def __iter__(self) -> typing.Iterator[T]: ...
@typing.overload
def __getitem__(self, index: int) -> T: ...
@typing.overload
def __getitem__(self, index: slice) -> typing.List[T]: ...
def __contains__(self, item: T) -> bool: ...
def __reversed__(self) -> typing.Iterator[T]: ...
def __len__(self) -> int: ...
def __add__(self, other: typing.List[T]) -> typing.List[T]: ...
def __eq__(self, other: typing.Any) -> bool: ...
def __ne__(self, other: typing.Any) -> bool: ...
def __le__(self, other: typing.Any) -> bool: ...
def __lt__(self, other: typing.Any) -> bool: ...
def __gt__(self, other: typing.Any) -> bool: ...
def __ge__(self, other: typing.Any) -> bool: ...
def count(self, item: T) -> int: ...
def index(self, item: T) -> int: ...
def copy(self) -> typing.List[T]: ...
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