如何在带有decorator 的 reactnative 0.56 (Babel 7) 中使用 mobx

我已经将使用巴别塔7的RN应用程序从0.55.4升级到了0.56.

在0.55.4中，要使用MOBX的decorator ，我使用"babel plugin transform decorators legacy"，但与babel 7不兼容...

react 本机版本:0.56.0

有人有解决办法吗？

谢谢

UPDATE:

该应用程序在DEBUG种配置下工作

package.json

...
"devDependencies": {
    "@babel/core": "7.0.0-beta.47",
    "@babel/plugin-proposal-decorators": "7.0.0-beta.47"
    ...
}

.babelrc

{
  "presets": [
    ["react-native"]
  ],
  "plugins": [
    ["@babel/plugin-proposal-decorators", { "legacy": true }]
  ]
}

但在RELEASE xCode崩溃时，出现了以下错误:

babelHelpers.applyDecoratedDescriptor is not a function.

UPDATE 2, WORKING CONFIG:

这是我的工作配置:

package.json

...
"devDependencies": {
   "@babel/core": "7.0.0-beta.47",
   "@babel/plugin-proposal-decorators": "7.0.0-beta.47",
   "@babel/runtime": "7.0.0-beta.47",
   "babel-jest": "23.2.0",
   "babel-preset-react-native": "5.0.2",
   "jest": "23.3.0",
   "react-test-renderer": "16.4.1"
}
...

.babelrc

{
  "presets": [
    ["react-native"]
  ],
  "plugins": [
    ["@babel/plugin-proposal-decorators", { "legacy": true }]
  ]
}

然后在索引中.js(主应用程序启动文件)我需要导入decorators babel库:

index.js

import applyDecoratedDescriptor from '@babel/runtime/helpers/es6/applyDecoratedDescriptor';
import initializerDefineProperty from '@babel/runtime/helpers/es6/initializerDefineProperty';

Object.assign(babelHelpers, {applyDecoratedDescriptor, initializerDefineProperty});

require('./app.js');

app.js

import {AppRegistry} from 'react-native';
import AppName from './app/index';

AppRegistry.registerComponent(appName, () => AppName);