Member variables of forward-referenced class types are ignored during serialization

[seri114]

Member variables of forward-referenced class types are ignored during serialization.

For example, consider the following case:

from __future__ import annotations
from dataclasses import dataclass
from mashumaro import DataClassDictMixin

@dataclass
class A(DataClassDictMixin):
    a:B

@dataclass
class B(DataClassDictMixin):
    b:int

a = A(B(1))
print(a.to_dict())

This gives us the expected:

{'a': {'b': 1}}

On the other hand, running the following case does not give the expected results.

@dataclass
class Base(DataClassDictMixin):
    pass

@dataclass
class A1(Base):
    a:B1

@dataclass
class B1(Base):
    b:int


a = A1(B1(1))
print(a.to_dict())

Result:

{}

At this time, no exception or error message will be generated.

Expected:

{'a': {'b': 1}}

Thanks for the excellent tool!

[Fatal1ty]

Hi @seri114

Thank you for spotting this! It is fixed in this branch. The next release will be very soon.

[Fatal1ty]

It it's fixed in 3.0.

[seri114]

I have confirmed that this has been fixed in the v3.0 release.
Thanks again!
@Fatal1ty