Trait glib::subclass::types::ObjectSubclassExt

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

Extension methods for all ObjectSubclass impls.

Required Methods

fn instance(&self) -> Self::Type

Returns the corresponding object instance.

fn from_instance(obj: &Self::Type) -> &Self

Returns the implementation from an instance.

fn instance_data<U: Any + Send + Sync + 'static>( &self, type_: Type ) -> Option<&U>

Returns a pointer to the instance implementation specific data.

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

Implementors

impl<T: ObjectSubclass> ObjectSubclassExt for T