TypeAdapter doesn't respect config['schema_generator']

[samuelcolvin]

Initial Checks

• I confirm that I'm using Pydantic V2

Description

pydantic/pydantic/type_adapter.py

Line 80 in 77b0e1c

gen = _generate_schema.GenerateSchema(config_wrapper, types_namespace=global_ns, typevars_map={})

We're not using config['schema_generator'], we should.

BaseModel and RootModel do respect it.

Example Code

from typing import Any
from pydantic_core import core_schema

from pydantic import RootModel
from pydantic._internal._generate_schema import GenerateSchema
from pydantic.config import ConfigDict


class MyGenerateSchema(GenerateSchema):
    def _unknown_type_schema(self, obj: Any):
        return core_schema.int_schema()


class MyType:
    pass


class MyModel(RootModel):
    model_config = ConfigDict(schema_generator=MyGenerateSchema)
    root: MyType


debug(MyModel('123').root)

Python, Pydantic & OS Version

all v2 I guess