90 lines
2.8 KiB
JavaScript
90 lines
2.8 KiB
JavaScript
/**
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*
|
|
* @providesModule HMRClient
|
|
*/
|
|
'use strict';
|
|
|
|
const invariant = require('invariant');
|
|
|
|
/**
|
|
* HMR Client that receives from the server HMR updates and propagates them
|
|
* runtime to reflects those changes.
|
|
*/
|
|
const HMRClient = {
|
|
enable(platform, bundleEntry) {
|
|
invariant(platform, 'Missing required parameter `platform`');
|
|
invariant(bundleEntry, 'Missing required paramenter `bundleEntry`');
|
|
|
|
// TODO(martinb) receive host and port as parameters
|
|
const host = 'localhost';
|
|
const port = '8081';
|
|
|
|
// need to require WebSocket inside of `enable` function because
|
|
// this module is defined as a `polyfillGlobal`.
|
|
// See `InitializeJavascriptAppEngine.js`
|
|
const WebSocket = require('WebSocket');
|
|
|
|
const activeWS = new WebSocket(
|
|
`ws://${host}:${port}/hot?platform=${platform}&` +
|
|
`bundleEntry=${bundleEntry.replace('.bundle', '.js')}`
|
|
);
|
|
activeWS.onerror = (e) => {
|
|
throw new Error(
|
|
`Hot loading isn't working because it cannot connect to the development server.
|
|
|
|
Ensure the following:
|
|
- Node server is running and available on the same network
|
|
- run 'npm start' from react-native root
|
|
- Node server URL is correctly set in AppDelegate
|
|
|
|
URL: ${host}:${port}
|
|
|
|
Error: ${e.message}`
|
|
);
|
|
};
|
|
activeWS.onmessage = ({data}) => {
|
|
data = JSON.parse(data);
|
|
if (data.type === 'update') {
|
|
const modules = data.body.modules;
|
|
const sourceMappingURLs = data.body.sourceMappingURLs;
|
|
const sourceURLs = data.body.sourceURLs;
|
|
|
|
const RCTRedBox = require('NativeModules').RedBox;
|
|
RCTRedBox && RCTRedBox.dismiss && RCTRedBox.dismiss();
|
|
|
|
modules.forEach((code, i) => {
|
|
code = code + '\n\n' + sourceMappingURLs[i];
|
|
|
|
require('SourceMapsCache').fetch({
|
|
text: code,
|
|
url: sourceURLs[i],
|
|
sourceMappingURL: sourceMappingURLs[i],
|
|
});
|
|
|
|
// on JSC we need to inject from native for sourcemaps to work
|
|
// (Safari doesn't support `sourceMappingURL` nor any variant when
|
|
// evaluating code) but on Chrome we can simply use eval
|
|
const injectFunction = typeof __injectHMRUpdate === 'function'
|
|
? __injectHMRUpdate
|
|
: eval;
|
|
|
|
injectFunction(code, sourceURLs[i]);
|
|
})
|
|
return;
|
|
}
|
|
|
|
// TODO: add support for opening filename by clicking on the stacktrace
|
|
const error = data.body;
|
|
throw new Error(error.type + ' ' + error.description);
|
|
};
|
|
},
|
|
};
|
|
|
|
module.exports = HMRClient;
|