export interface ReactiveNode {
    deps?: Link;
    depsTail?: Link;
    subs?: Link;
    subsTail?: Link;
    flags: ReactiveFlags;
}
export interface Link {
    version: number;
    dep: ReactiveNode;
    sub: ReactiveNode;
    prevSub: Link | undefined;
    nextSub: Link | undefined;
    prevDep: Link | undefined;
    nextDep: Link | undefined;
}
export declare enum ReactiveFlags {
    None = 0,
    Mutable = 1,
    Watching = 2,
    RecursedCheck = 4,
    Recursed = 8,
    Dirty = 16,
    Pending = 32
}
export declare function createReactiveSystem({ update, notify, unwatched, }: {
    update(sub: ReactiveNode): boolean;
    notify(sub: ReactiveNode): void;
    unwatched(sub: ReactiveNode): void;
}): {
    link: (dep: ReactiveNode, sub: ReactiveNode) => void;
    unlink: (link: Link, sub?: ReactiveNode) => Link | undefined;
    propagate: (link: Link) => void;
    checkDirty: (link: Link, sub: ReactiveNode) => boolean;
    endTracking: (sub: ReactiveNode) => void;
    startTracking: (sub: ReactiveNode) => void;
    shallowPropagate: (link: Link) => void;
};