Method constructor

src/ui-svelte/functions.svelte.ts:147–154

(
    getCurrent: () => Current,
    setCurrent: (value: Next) => void,
    subscribe: () => void,
  )

  readonly #set: (value: Next) => void;

  constructor(
    getCurrent: () => Current,
    setCurrent: (value: Next) => void,
    subscribe: () => void,
  ) {
    super(getCurrent, subscribe);
    this.#set = setCurrent;
  }

  get current(): Current {
    return super.current;