NapCatQQ/.pnpm-store/v3/files/d3/2ae83ec198ca32ddbb3f8f9e097c33c0565d92ecb28d76548e2128d38b4c8001df44390248c5f8195a13724ae51450269c9201603613c828ec31f37a625957

const notify = (node) => !node.isLayoutDirty && node.willUpdate(false);
function nodeGroup() {
    const nodes = new Set();
    const subscriptions = new WeakMap();
    const dirtyAll = () => nodes.forEach(notify);
    return {
        add: (node) => {
            nodes.add(node);
            subscriptions.set(node, node.addEventListener("willUpdate", dirtyAll));
        },
        remove: (node) => {
            nodes.delete(node);
            const unsubscribe = subscriptions.get(node);
            if (unsubscribe) {
                unsubscribe();
                subscriptions.delete(node);
            }
            dirtyAll();
        },
        dirty: dirtyAll,
    };
}

export { nodeGroup };