runtime.js

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2020 Vercel, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

// This file is copied from the @vercel/next.js, with removed TS annotations
//
// https://github.com/vercel/next.js/blob/canary/packages/react-refresh-utils/runtime.ts

const RefreshRuntime = require('react-refresh/runtime');
const RefreshHelpers = require('./helpers');

// Hook into ReactDOM initialization
RefreshRuntime.injectIntoGlobalHook(self);

// noop fns to prevent runtime errors during initialization
self.$RefreshReg$ = () => {};
self.$RefreshSig$ = () => (type) => type;

// Register global helpers
self.$RefreshHelpers$ = RefreshHelpers;

// Register a helper for module execution interception
self.$RefreshInterceptModuleExecution$ = function (webpackModuleId) {
  const prevRefreshReg = self.$RefreshReg$;
  const prevRefreshSig = self.$RefreshSig$;

  self.$RefreshReg$ = (type, id) => {
    RefreshRuntime.register(type, webpackModuleId + ' ' + id);
  };
  self.$RefreshSig$ = RefreshRuntime.createSignatureFunctionForTransform;

  // Modeled after `useEffect` cleanup pattern:
  // https://reactjs.org/docs/hooks-effect.html#effects-with-cleanup
  return () => {
    self.$RefreshReg$ = prevRefreshReg;
    self.$RefreshSig$ = prevRefreshSig;
  };
};