Trait IEntityListNodeID

Source

pub trait IEntityListNodeID: IPoliciedID {
Show 13 methods    // Required methods
    fn obj_load_head(obj: &Self::ObjectT) -> EntityListNodeHead<Self>;
    fn obj_store_head(obj: &Self::ObjectT, head: EntityListNodeHead<Self>);
    fn obj_is_sentinel(obj: &Self::ObjectT) -> bool;
    fn new_sentinel_obj() -> Self::ObjectT;
    fn on_push_prev(
        self,
        prev: Self,
        alloc: &IDBoundAlloc<Self>,
    ) -> EntityListRes<Self>;
    fn on_push_next(
        self,
        next: Self,
        alloc: &IDBoundAlloc<Self>,
    ) -> EntityListRes<Self>;
    fn on_unplug(self, alloc: &IDBoundAlloc<Self>) -> EntityListRes<Self>;

    // Provided methods
    fn is_sentinel(self, alloc: &IDBoundAlloc<Self>) -> bool { ... }
    fn new_sentinel(alloc: &IDBoundAlloc<Self>) -> Self { ... }
    fn get_prev_id(self, alloc: &IDBoundAlloc<Self>) -> Option<Self> { ... }
    fn get_next_id(self, alloc: &IDBoundAlloc<Self>) -> Option<Self> { ... }
    fn is_attached(self, alloc: &IDBoundAlloc<Self>) -> bool { ... }
    fn comes_before(
        self,
        latter: Self,
        alloc: &IDBoundAlloc<Self>,
    ) -> EntityListRes<Self, bool> { ... }
}

Expand description

Trait required for an entity ID to be used as a node in EntityList.

Implementors must provide accessors to load/store the embedded EntityListNodeHead inside the entity object, create sentinel objects, and handle optional push/unplug signals. This trait lets the list logic remain generic over different ID representations (pointer-based or index-based).