Source code for returns.interfaces.lashable

from abc import abstractmethod
from typing import Callable, Generic, NoReturn, TypeVar

from import KindN

_FirstType = TypeVar('_FirstType')
_SecondType = TypeVar('_SecondType')
_ThirdType = TypeVar('_ThirdType')
_UpdatedType = TypeVar('_UpdatedType')

_LashableType = TypeVar('_LashableType', bound='LashableN')

[docs]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__ = ()
[docs] @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, NoReturn] #: Type alias for kinds with three type arguments. Lashable3 = LashableN[_FirstType, _SecondType, _ThirdType]