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subtypes.py
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73 lines (39 loc) · 980 Bytes
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import collections
import numpy
from typing import *
class P(Protocol):
def f(self, x: int) -> dict:
...
class S:
def f(self, x: Union[int, str]) -> collections.Counter:
return collections.Counter([x])
class S1:
def f(self, x: Union[int, str]) -> object:
return collections.Counter([x])
def func_for_P(x: P) -> None:
return None
func_for_P(S())
class R(Protocol):
def f(self) -> 'R':
...
class RImpl:
def f(self) -> 'RImpl':
return self
def func_for_R(x: R) -> None:
return None
func_for_R(RImpl())
a: List[int] = []
T = TypeVar('T')
def func_abs(x: SupportsAbs[T]):
return abs(x)
b: int = 10
class SupportsCall(Protocol):
def __call__(self, *args, **kwargs):
...
class HasF(Protocol):
f: SupportsCall
class SupportsSpecificCall(Protocol):
def __call__(self, *args, **kwargs) -> HasF:
...
class HasSpecificF(Protocol):
f: SupportsSpecificCall