pub trait ObjectSubclassExt: ObjectSubclass {
    fn instance(&self) -> Self::Type;
fn from_instance(obj: &Self::Type) -> &Self;
fn instance_data<U: Any + Send + Sync + 'static>(
        type_: Type
    ) -> Option<&U>; }
Expand description

Extension methods for all ObjectSubclass impls.

Required methods

Returns the corresponding object instance.

Returns the implementation from an instance.

Returns a pointer to the instance implementation specific data.

This is used for the subclassing infrastructure to store additional instance data.