Function copyWithSet

packages/react-reconciler/src/ReactFiberReconciler.js:702–708

(
    obj: Object | Array<any>,
    path: Array<string | number>,
    value: any,
  )

  };

  const copyWithSet = (
    obj: Object | Array<any>,
    path: Array<string | number>,
    value: any,
  ): Object | Array<any> => {
    return copyWithSetImpl(obj, path, 0, value);
  };

  const findHook = (fiber: Fiber, id: number) => {
    // For now, the "id" of stateful hooks is just the stateful hook index.