1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
from abc import abstractmethod
from collections.abc import Callable
from typing import Generic, TypeVar
from typing_extensions import Never
from returns.primitives.hkt import KindN
_FirstType = TypeVar('_FirstType')
_SecondType = TypeVar('_SecondType')
_ThirdType = TypeVar('_ThirdType')
_UpdatedType = TypeVar('_UpdatedType')
_LashableType = TypeVar('_LashableType', bound='LashableN')
class LashableN(Generic[_FirstType, _SecondType, _ThirdType]):
"""
Represents a "context" in which calculations can be executed.
``Rescueable`` allows you to bind together
a series of calculations while maintaining
the context of that specific container.
In contrast to :class:`returns.interfaces.bindable.BinbdaleN`,
works with the second type value.
"""
__slots__ = ()
@abstractmethod
def lash(
self: _LashableType,
function: Callable[
[_SecondType],
KindN[_LashableType, _FirstType, _UpdatedType, _ThirdType],
],
) -> KindN[_LashableType, _FirstType, _UpdatedType, _ThirdType]:
"""
Applies 'function' to the result of a previous calculation.
And returns a new container.
"""
#: Type alias for kinds with two type arguments.
Lashable2 = LashableN[_FirstType, _SecondType, Never]
#: Type alias for kinds with three type arguments.
Lashable3 = LashableN[_FirstType, _SecondType, _ThirdType]
|
