Method track_object

crates/vm/src/gc_state.rs:268–276

Track a new object (add to gen0). O(1) — intrusive linked list push_front, no hashing. # Safety obj must be a valid pointer to a PyObject

(&self, obj: NonNull<PyObject>)

    /// # Safety
    /// obj must be a valid pointer to a PyObject
    pub unsafe fn track_object(&self, obj: NonNull<PyObject>) {
        let obj_ref = unsafe { obj.as_ref() };
        obj_ref.set_gc_tracked();
        obj_ref.set_gc_generation(0);

        self.generation_lists[0].write().push_front(obj);
        self.generations[0].count.fetch_add(1, Ordering::SeqCst);
        self.alloc_count.fetch_add(1, Ordering::SeqCst);
    }

    /// Untrack an object (remove from GC lists).
    /// O(1) — intrusive linked list remove by node pointer.