// Metro module 1506 (f1507).
import { createContext, useRef, useMemo } from "react";
const context = createContext(void 0);
export default function EnsureSingleNavigator(props) {
  const children = props.children;
  const ref = useRef();
  return <context.Provider value={useMemo(() => ({
    register: (a0) => {
      const current = ref.current;
      if (current !== void 0 && a0 !== current) {
        throw new Error("Another navigator is already registered for this container. You likely have multiple navigators under a single \"NavigationContainer\" or \"Screen\". Make sure each navigator is under a separate \"Screen\" container. See https://reactnavigation.org/docs/nesting-navigators for a guide on nesting.");
      }
      ref.current = a0;
    },
    unregister: (a0) => {
      if (a0 === ref.current) {
        ref.current = void 0;
      }
    }
  }), [])}>{children}</context.Provider>;
};
export { context as SingleNavigatorContext };