tests/functional/a/alternative/alternative_union_syntax_py37.py

"""Test PEP 604 - Alternative Union syntax
with postponed evaluation of annotations enabled.

For Python 3.7 - 3.9: Most things should work.
Testing only 3.8/3.9 to support TypedDict.
"""
# pylint: disable=missing-function-docstring,unused-argument,invalid-name,missing-class-docstring,inherit-non-class,too-few-public-methods,line-too-long
from __future__ import annotations
import dataclasses
import typing
from dataclasses import dataclass
from typing import NamedTuple, TypedDict


Alias = str | typing.List[int]  # [unsupported-binary-operation]
lst = [typing.Dict[str, int] | None,]  # [unsupported-binary-operation]

var1: typing.Dict[str, int | None]
var2: int | str | None
var3: int | list[str | int]
var4: typing.Dict[typing.Tuple[int, int] | int, None]

cast_var = 1
cast_var = typing.cast(str | int, cast_var)  # [unsupported-binary-operation]

T = typing.TypeVar("T", int | str, bool)  # [unsupported-binary-operation]

(lambda x: 2)(int | str)  # [unsupported-binary-operation]

var: str | int

def func(arg: int | str):
    pass

def func2() -> int | str:
    pass

class CustomCls(int):
    pass

Alias2 = CustomCls |  str  # [unsupported-binary-operation]

var2 = CustomCls(1) | int(2)


# Check typing.NamedTuple
CustomNamedTuple = typing.NamedTuple(
    "CustomNamedTuple", [("my_var", int | str)])  # [unsupported-binary-operation]

class CustomNamedTuple2(NamedTuple):
    my_var: int | str

class CustomNamedTuple3(typing.NamedTuple):
    my_var: int | str


# Check typing.TypedDict
CustomTypedDict = TypedDict("CustomTypedDict", my_var=int | str)  # [unsupported-binary-operation]

CustomTypedDict2 = TypedDict("CustomTypedDict2", {"my_var": int | str})  # [unsupported-binary-operation]

class CustomTypedDict3(TypedDict):
    my_var: int | str

class CustomTypedDict4(typing.TypedDict):
    my_var: int | str


# Check dataclasses
def my_decorator(*args, **kwargs):
    def wraps(*args, **kwargs):
        pass
    return wraps

@dataclass
class CustomDataClass:
    my_var: int | str

@dataclasses.dataclass
class CustomDataClass2:
    my_var: int | str

@dataclass()
class CustomDataClass3:
    my_var: int | str

@my_decorator
@dataclasses.dataclass
class CustomDataClass4:
    my_var: int | str