GenericIntrospectionMethod

class app.util.helpers.generics.GenericIntrospectionMethod

Bases: classmethod[Any, …, type[R]], Generic

Descriptor that resolves generic parent arguments on demand.

Inheritance Diagram for GenericIntrospectionMethod

Methods

__init__([param])

Initialise the descriptor and capture default keyword arguments.

Attributes

introspect

Resolve and cache the concrete parent argument defined by the descriptor.

__init__(param: TypeVar | None = None, **kwargs: Unpack[GetConcreteParentArgumentKwargs]) → None

Initialise the descriptor and capture default keyword arguments.

Parameters:

• param (TypeVar | None)

• kwargs (Unpack[GetConcreteParentArgumentKwargs])

Return type:

None

property introspect: type[R]

Resolve and cache the concrete parent argument defined by the descriptor.

The descriptor caches the result per owning class via instance_lru_cache() so repeated introspections remain constant time.

Raises:

GenericsError – If the underlying parent argument cannot be resolved to a concrete type.