realm-js/lib/index.js

117 lines
4.0 KiB
JavaScript

////////////////////////////////////////////////////////////////////////////
//
// Copyright 2016 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////
'use strict';
const require_method = require;
// Prevent React Native packager from seeing modules required with this
function nodeRequire(module) {
return require_method(module);
}
function getContext() {
// If process is an object, we're probably running in Node or Electron
// From: http://stackoverflow.com/a/24279593/1417293
if (typeof process === 'object' && process + '' === '[object process]') {
// Visual Studio Code defines the global.__debug__ object.
if (typeof global !== 'undefined' && global.__debug__) {
return 'vscodedebugger';
}
return process.type === 'renderer' ? 'electron' : 'nodejs';
}
// When running via Jest, the jest object is defined.
if (typeof jest === 'object') {
return 'nodejs';
}
if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') { // eslint-disable-line no-undef
// If the navigator.userAgent contains the string "Chrome", we're likely
// running via the chrome debugger.
if (typeof navigator !== 'undefined' &&
/Chrome/.test(navigator.userAgent)) { // eslint-disable-line no-undef
return 'chromedebugger';
}
// Otherwise, we must be in a "normal" react native situation.
// In that case, the Realm type should have been injected by the native code.
// If it hasn't, the user likely forgot to run link.
if (typeof Realm === 'undefined'){
throw new Error('Missing Realm constructor. Did you run "react-native link realm"? Please see https://realm.io/docs/react-native/latest/#missing-realm-constructor for troubleshooting');
}
return 'reactnative';
}
// If we're not running in React Native but we already injected the Realm class,
// we are probably running in a pure jscore environment
if (typeof Realm !== 'undefined') {
return 'jscore';
}
// Visual Studio Code defines the global.__debug__ object.
if (typeof global !== 'undefined' && global.__debug__) {
return 'vscodedebugger';
}
// Finally, if the navigator.userAgent contains the string "Chrome", we're likely
// running via the chrome debugger, even if navigator.product isn't set to "ReactNative"
if (typeof navigator !== 'undefined' &&
/Chrome/.test(navigator.userAgent)) { // eslint-disable-line no-undef
return 'chromedebugger';
}
throw Error("Unknown execution context");
}
var realmConstructor;
switch(getContext()) {
case 'nodejs':
case 'electron':
nodeRequire('./submit-analytics')('Run');
var binary = nodeRequire('node-pre-gyp');
var path = nodeRequire('path');
var pkg = path.resolve(path.join(__dirname,'../package.json'));
var binding_path = binary.find(pkg);
realmConstructor = require_method(binding_path).Realm;
break;
case 'reactnative':
case 'jscore':
realmConstructor = Realm; // eslint-disable-line no-undef
break;
case 'chromedebugger':
case 'vscodedebugger':
realmConstructor = require('./browser').default; // (exported as ES6 module)
break;
}
if (!realmConstructor) {
throw Error("Error trying to establish execution context");
}
require('./extensions')(realmConstructor);
module.exports = realmConstructor;