Closed
Description
Version
3.4.0
Reproduction link
https://github.com/jacekkarczmarczyk/vue-modern-issue
main.ts:
import App from './App.vue';
App.mounted();App.vue:
<script>
export default {
mounted: async () => await Promise.resolve(),
};
</script>Environment info
System:
OS: Windows 10
CPU: (8) x64 Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
Binaries:
Node: 8.11.3 - C:\Program Files\nodejs\node.EXE
Yarn: 1.13.0 - C:\Users\Jacek\AppData\Roaming\npm\yarn.CMD
npm: 5.6.0 - C:\Program Files\nodejs\npm.CMD
Browsers:
Edge: 42.17134.1.0
npmPackages:
@vue/babel-helper-vue-jsx-merge-props: 1.0.0-beta.2
@vue/babel-plugin-transform-vue-jsx: 1.0.0-beta.2
@vue/babel-preset-app: 3.4.0
@vue/babel-preset-jsx: 1.0.0-beta.2
@vue/babel-sugar-functional-vue: 1.0.0-beta.2
@vue/babel-sugar-inject-h: 1.0.0-beta.2
@vue/babel-sugar-v-model: 1.0.0-beta.2
@vue/babel-sugar-v-on: 1.0.0-beta.2
@vue/cli-overlay: 3.4.0
@vue/cli-plugin-babel: ^3.2.0 => 3.4.0
@vue/cli-plugin-eslint: ^3.2.0 => 3.4.0
@vue/cli-plugin-typescript: ^3.2.0 => 3.4.0
@vue/cli-plugin-unit-jest: ^3.2.0 => 3.4.0
@vue/cli-service: ^3.2.0 => 3.4.0
@vue/cli-shared-utils: 3.4.0
@vue/component-compiler-utils: 2.5.2
@vue/eslint-config-standard: ^4.0.0 => 4.0.0
@vue/eslint-config-typescript: ^3.2.0 => 3.2.1
@vue/preload-webpack-plugin: 1.1.0
@vue/test-utils: ^1.0.0-beta.20 => 1.0.0-beta.29
@vue/web-component-wrapper: 1.2.0
eslint-plugin-vue: ^5.0.0 => 5.2.2
jest-serializer-vue: 2.0.2
typescript: ^3.3.3 => 3.3.3
vue-eslint-parser: 5.0.0
vue-hot-reload-api: 2.3.2
vue-jest: 3.0.3
vue-loader: 15.6.3
vue-style-loader: 4.1.2
vue-template-compiler: ^2.5.21 => 2.6.6
vue-template-es2015-compiler: 1.8.2
npmGlobalPackages:
@vue/cli: Not Found
Steps to reproduce
yarn && yarn build
What is expected?
modern build should not include polyfill, it should containt the async and await keywords
What is actually happening?
legacy and modern dist files have the same size and content, modern build includes polyfill
Changing main.ts to
const App = {
mounted: async () => await Promise.resolve(),
};
App.mounted();produces the correct modern build:
https://github.com/jacekkarczmarczyk/vue-modern-issue/tree/correct-build/dist/js