black/tests/data/cases/preview_dummy_implementations.py

124 lines
1.9 KiB
Python

# flags: --preview
from typing import NoReturn, Protocol, Union, overload
class Empty:
...
def dummy(a): ...
async def other(b): ...
@overload
def a(arg: int) -> int: ...
@overload
def a(arg: str) -> str: ...
@overload
def a(arg: object) -> NoReturn: ...
def a(arg: Union[int, str, object]) -> Union[int, str]:
if not isinstance(arg, (int, str)):
raise TypeError
return arg
class Proto(Protocol):
def foo(self, a: int) -> int:
...
def bar(self, b: str) -> str: ...
def baz(self, c: bytes) -> str:
...
def dummy_two():
...
@dummy
def dummy_three():
...
def dummy_four():
...
@overload
def b(arg: int) -> int: ...
@overload
def b(arg: str) -> str: ...
@overload
def b(arg: object) -> NoReturn: ...
def b(arg: Union[int, str, object]) -> Union[int, str]:
if not isinstance(arg, (int, str)):
raise TypeError
return arg
def has_comment():
... # still a dummy
if some_condition:
...
if already_dummy: ...
# output
from typing import NoReturn, Protocol, Union, overload
class Empty: ...
def dummy(a): ...
async def other(b): ...
@overload
def a(arg: int) -> int: ...
@overload
def a(arg: str) -> str: ...
@overload
def a(arg: object) -> NoReturn: ...
def a(arg: Union[int, str, object]) -> Union[int, str]:
if not isinstance(arg, (int, str)):
raise TypeError
return arg
class Proto(Protocol):
def foo(self, a: int) -> int: ...
def bar(self, b: str) -> str: ...
def baz(self, c: bytes) -> str: ...
def dummy_two(): ...
@dummy
def dummy_three(): ...
def dummy_four(): ...
@overload
def b(arg: int) -> int: ...
@overload
def b(arg: str) -> str: ...
@overload
def b(arg: object) -> NoReturn: ...
def b(arg: Union[int, str, object]) -> Union[int, str]:
if not isinstance(arg, (int, str)):
raise TypeError
return arg
def has_comment(): ... # still a dummy
if some_condition:
...
if already_dummy:
...