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Improve realm constructor logic (#742) 

* Add user file

* Clean up initialization and add error message

* Revert "Add user file"

This reverts commit 2948f4cfc2dfd2d5d75594307b1e89806b817eb7.

* Make index.js more robust

* Fix review comments
This commit is contained in:
Kristian Dupont 2016-12-22 13:20:19 +01:00 committed by GitHub
parent 5684fd5aa8
commit e74a657725
1 changed files with 50 additions and 25 deletions
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75
lib/index.js
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@ -18,43 +18,68 @@
'use strict';
function node_require(module) {
// Prevent React Native packager from seeing modules required with this
function nodeRequire(module) {
return require(module);
}
// If process is defined, we're running in node.
function isNode() {
return typeof process == 'object' && (('' + process) == '[object process]' || typeof jest == 'object')
function getContext() {
if (typeof process === 'object' && process + '' === '[object process]') {
return process.type === 'renderer' ? 'electron' : 'nodejs';
}
if (typeof navigator !== 'undefined') {
if (navigator.product === 'ReactNative') {
return 'reactnative';
}
if (/Chrome/.test(navigator.userAgent)) {
return 'chromedebugger';
}
}
if (typeof global !== 'undefined') {
if (global.__debug__) {
return 'vscodedebugger';
}
}
if (typeof Realm !== 'undefined') {
return 'jscore';
}
throw Error("Unknown execution context");
}
// function isElectronRenderer() {
// return isNode() && process.type === 'renderer'
// }
var realmConstructor;
if (isNode()) {
node_require('./submit-analytics')('Run');
// Prevent React Native packager from seeing this module.
var binary = node_require('node-pre-gyp');
var path = node_require('path');
var pkg = path.resolve(path.join(__dirname,'../package.json'));
var binding_path = binary.find(pkg);
realmConstructor = require(binding_path).Realm;
} else {
if (typeof Realm != 'undefined') {
// The global Realm constructor should be available on device (using JavaScriptCore).
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(binding_path).Realm;
break;
case 'reactnative':
case 'jscore':
realmConstructor = Realm; // eslint-disable-line no-undef
// eslint-disable-next-line
} else if (typeof window != 'undefined') {
// The userAgent will be defined when running in a browser (such as Chrome debugging mode).
break;
case 'chromedebugger':
case 'vscodedebugger':
realmConstructor = require('./browser').default; // (exported as ES6 module)
// eslint-disable-next-line
}
break;
}
if (!realmConstructor) {
throw new Error('Missing Realm constructor - please ensure RealmReact framework is included!');
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');
}
require('./extensions')(realmConstructor);