Source code for cattrs.fns

"""Useful internal functions."""
from typing import NoReturn, Type, TypeVar

from .errors import StructureHandlerNotFoundError

T = TypeVar("T")

[docs]def identity(obj: T) -> T: """The identity function.""" return obj
[docs]def raise_error(_, cl: Type) -> NoReturn: """At the bottom of the condition stack, we explode if we can't handle it.""" msg = f"Unsupported type: {cl!r}. Register a structure hook for it." raise StructureHandlerNotFoundError(msg, type_=cl)