Dataclass with default factory not supported.

[nrbnlulu]

example

import dataclasses

import aioinject


@dataclasses.dataclass(slots=True)
class FooBase[T]:
	bar: dict[T] = dataclasses.field(default_factory=dict)

	def baz(self):
		raise NotImplementedError()


class FooImpl(FooBase[int]):
	def baz(self):
		pass


container = aioinject.Container()
container.register(aioinject.Singleton(FooImpl))

with container.sync_context() as ctx:
	foo_impl = ctx.resolve(FooImpl)

To get around this what you could do something like

import dataclasses
from typing import TYPE_CHECKING

import aioinject


@dataclasses.dataclass(slots=True)
class FooBase[T]:
	if TYPE_CHECKING:
		bar: dict[T] = dataclasses.field(default_factory=dict)
	else:
		bar: dict = dataclasses.field(default_factory=dict)

	def baz(self):
		raise NotImplementedError()


class FooImpl(FooBase[int]):
	def baz(self):
		pass


container = aioinject.Container()
container.register(
	aioinject.Transient(dict),
    aioinject.Singleton(FooImpl)
    )

with container.sync_context() as ctx:
	foo_impl = ctx.resolve(FooImpl)

I guess this can be solved by ignoring fields that has default factories.

[ThirVondukr]

@nrbnlulu
I think it's possible to just ignore parameters that have default arguments but honestly I'm not sure if they should be ignored or if container should try to resolve them 🤔

sig = inspect.signature(FooBase.__init__)
print(sig.parameters["bar"].default)  # <factory>

[nrbnlulu]

I'll try to submit a PR soon