|
- from typing import Any, Callable, Iterable, Type, TypeVar
-
- from starlette.datastructures import URL as URL # noqa: F401
- from starlette.datastructures import Address as Address # noqa: F401
- from starlette.datastructures import FormData as FormData # noqa: F401
- from starlette.datastructures import Headers as Headers # noqa: F401
- from starlette.datastructures import QueryParams as QueryParams # noqa: F401
- from starlette.datastructures import State as State # noqa: F401
- from starlette.datastructures import UploadFile as StarletteUploadFile
-
-
- class UploadFile(StarletteUploadFile):
- @classmethod
- def __get_validators__(cls: Type["UploadFile"]) -> Iterable[Callable[..., Any]]:
- yield cls.validate
-
- @classmethod
- def validate(cls: Type["UploadFile"], v: Any) -> Any:
- if not isinstance(v, StarletteUploadFile):
- raise ValueError(f"Expected UploadFile, received: {type(v)}")
- return v
-
-
- class DefaultPlaceholder:
- """
- You shouldn't use this class directly.
-
- It's used internally to recognize when a default value has been overwritten, even
- if the overridden default value was truthy.
- """
-
- def __init__(self, value: Any):
- self.value = value
-
- def __bool__(self) -> bool:
- return bool(self.value)
-
- def __eq__(self, o: object) -> bool:
- return isinstance(o, DefaultPlaceholder) and o.value == self.value
-
-
- DefaultType = TypeVar("DefaultType")
-
-
- def Default(value: DefaultType) -> DefaultType:
- """
- You shouldn't use this function directly.
-
- It's used internally to recognize when a default value has been overwritten, even
- if the overridden default value was truthy.
- """
- return DefaultPlaceholder(value) # type: ignore
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