javascript - Rollup 无法转译异步/等待 - regeneratorRuntime 未定义

Question

我想将 async/await 与 rollup 结合使用。

我尝试在 stackoverflow 和 github 上搜索 babel 和 rollup 问题，但没有解决我的问题。

@babel/runtime/regenerator 被视为外部依赖。我看到一个控制台错误:regeneratorRuntime is not defined。在你问之前，是的，我确实查看了所有其他关于这个主题的帖子，但我能找到的都没有解决这个问题。

我尝试过使用@babel/polyfill，尽管它已被弃用并且人们说不要使用它。我在主要导入之前尝试过 importing，我尝试过导入 transform-runtime，但我没有做任何工作。

编译警告:

src/main.js → dist/bundle.js...
(!) Unresolved dependencies
https://rollupjs.org/guide/en/#warning-treating-module-as-external-dependency
@babel/runtime/regenerator (imported by src/cronreader.js, src/animations.js)
created dist/bundle.js in 549ms

rollup.config.js:

import babel from 'rollup-plugin-babel'
import resolve from 'rollup-plugin-node-resolve'
import async from 'rollup-plugin-async';

export default {
    input: 'src/main.js',
    output: {
        file: 'dist/bundle.js',
        format: 'iife',
        globals: {
            "@babel/runtime/regenerator": "regeneratorRuntime",
            "@babel/runtime/helpers/asyncToGenerator": "asyncToGenerator"
        }
    },
    plugins: [
        async(),
        resolve({
            customResolveOptions: {
                moduleDirectory: 'src'
            }
        }),
        babel({
            runtimeHelpers: true,
            exclude: 'node_modules/**', // only transpile our source code
            presets: ["@babel/preset-env"],
            plugins: [
                "@babel/transform-runtime",
                "@babel/transform-regenerator",
                "@babel/transform-async-to-generator",
            ]
        })
    ]
}

package.json:

"devDependencies": {
    "@babel/core": "^7.5.5",
    "@babel/plugin-transform-async-to-generator": "^7.5.0",
    "@babel/plugin-transform-regenerator": "^7.4.5",
    "@babel/plugin-transform-runtime": "^7.5.5",
    "@babel/preset-env": "^7.5.5",
    "@node-minify/cli": "^4.1.2",
    "@node-minify/crass": "^4.1.2",
    "babel-cli": "^6.26.0",
    "babel-preset-es2015": "^6.24.1",
    "node-minify": "^3.6.0",
    "node-sass": "^4.12.0",
    "rollup": "^1.18.0",
    "rollup-plugin-async": "^1.2.0",
    "rollup-plugin-babel": "^4.3.3",
    "rollup-plugin-node-resolve": "^5.2.0",
    "uglify-js": "^3.6.0"
  },
"scripts": {
    "build": "rollup -c rollup.config.js"
}
  "bundleDependencies": [
    "@babel/runtime"
  ]

没有 .babelrc 文件。

Answer 1

不确定您是否已经解决了这个问题，但只是为了将来引用，这个答案对我有用 https://stackoverflow.com/a/36821986/839273

我刚刚使用 npm i -D @babel/plugin-transform-runtime 安装了 transform-runtime，像上面那样在 rollup.config.js 中启用了 runtimeHelpers 然后添加了

["@babel/plugin-transform-runtime", {
   "regenerator": true
}]

到 .babelrc 中的插件节点 -> 为了清楚起见，这是我完整的 .babelrc:

{
  "presets": [
    "@babel/preset-env",
    "@babel/preset-react",
    "@babel/preset-flow"
  ],
  "plugins": [
    "@babel/plugin-proposal-class-properties",
    "babel-plugin-inline-json-import",
    ["@babel/plugin-transform-runtime", {
      "regenerator": true
    }]
  ]
}