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044a1048ca
The hard part was making all the tests pass; there are some subtle issues here, because apparently the future import wasn't tested very thoroughly in previous Python versions. For example, `inspect.signature()` returned type objects normally (except for forward references), but strings with the future import. We changed it to try and return type objects by calling `typing.get_type_hints()`, but fall back on returning strings if that function fails (which it may do if there are future references in the annotations that require passing in a specific namespace to resolve).
26 lines
659 B
Python
26 lines
659 B
Python
import dataclasses
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import typing
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T_CV2 = typing.ClassVar[int]
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T_CV3 = typing.ClassVar
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T_IV2 = dataclasses.InitVar[int]
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T_IV3 = dataclasses.InitVar
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@dataclasses.dataclass
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class CV:
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T_CV4 = typing.ClassVar
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cv0: typing.ClassVar[int] = 20
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cv1: typing.ClassVar = 30
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cv2: T_CV2
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cv3: T_CV3
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not_cv4: T_CV4 # When using string annotations, this field is not recognized as a ClassVar.
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@dataclasses.dataclass
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class IV:
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T_IV4 = dataclasses.InitVar
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iv0: dataclasses.InitVar[int]
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iv1: dataclasses.InitVar
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iv2: T_IV2
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iv3: T_IV3
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not_iv4: T_IV4 # When using string annotations, this field is not recognized as an InitVar.
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