WeakRef-Grounded Garbage Collection Tracking for Object Instances in Svelte Actions

export class ElementRegistry {
  #refs = new Set();
  #finalizer = new FinalizationRegistry(id => {
    console.log(`Resource ${id} collected by GC`);
  });
 
  register(instance, id) {
    const ref = new WeakRef(instance);
    this.#refs.add(ref);
    this.#finalizer.register(instance, id, ref);
  }
 
  getActiveCount() {
    let active = 0;
    for (const ref of this.#refs) {
      if (ref.deref()) active++;
    }
    return active;
  }
}
 
export function trackAction(node, registryInstance) {
  registryInstance.register(node, node.id || 'unnamed');
  return {
    destroy() {
      // Cleanup action bindings
    }
  };
}