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Petrandintellij-monorepo-bot
22454fca8f
A class containing at least one method declared with `abstractmethod` decorator that hasn’t been overridden yet cannot be instantiated. Also report instantiation of classes that directly inherit ABC or have metaclass set to ABCMeta. GitOrigin-RevId: 55cb4dc90c55ddc63991a4c3f6b50b4e34a3b4bd
120 lines
1.7 KiB
Python
120 lines
1.7 KiB
Python
from typing import Protocol
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from abc import abstractmethod
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# ------------------
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class MP1(Protocol):
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name: str
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class CMP1(MP1): # ok
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pass
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def test_mp1(mp1: MP1):
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pass
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test_mp1(CMP1())
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# ------------------
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class MP2(Protocol):
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name: str = "name"
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class CMP2(MP2): # ok
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pass
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def test_mp2(mp2: MP2):
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pass
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test_mp2(CMP2())
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# ------------------
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class MP3(Protocol):
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def foo(self) -> int:
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return 42
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class CMP3(MP3): # ok
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pass
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def test_mp3(mp3: MP3):
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pass
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test_mp3(CMP3())
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# ------------------
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class MP4(Protocol):
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def foo(self) -> int:
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pass
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class CMP4(MP4): # ok
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pass
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def test_mp4(mp4: MP4):
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pass
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test_mp4(CMP4())
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# ------------------
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class MP5(Protocol):
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@abstractmethod
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def foo(self) -> int:
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raise NotImplementedError
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class <weak_warning descr="Class CMP5 must implement all abstract methods">CMP5</weak_warning>(MP5): # fail
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pass
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def test_mp5(mp5: MP5):
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pass
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test_mp5(<warning descr="Cannot instantiate abstract class 'CMP5'">CMP5()</warning>)
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# ------------------
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class MP6(Protocol):
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@abstractmethod
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def foo(self) -> int:
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raise NotImplementedError
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class CMP6(MP6): # ok
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@abstractmethod
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def bar(self) -> int:
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raise NotImplementedError
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def test_mp6(mp6: MP6):
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pass
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test_mp6(<warning descr="Cannot instantiate abstract class 'CMP6'">CMP6()</warning>)
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# ------------------
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class MP7(Protocol):
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@abstractmethod
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def foo(self) -> int:
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raise NotImplementedError
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class PMP7(MP7, Protocol): # ok
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def bar(self) -> int:
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pass
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<warning descr="Cannot instantiate abstract class 'PMP7'">PMP7()</warning> |