$listeners is readonly. $attrs is readonly.

Hello. I have an error when using vue-property-decorator in my additional library.

From this stackoverflow answer. Vue is being loaded/packed into the bundle by webpack and also loaded externally (not via webpack)
https://stackoverflow.com/a/50932919/5988531

I do something like this in my main.ts:

import MyIcon from '<my-external-library>/src/components/icon/icon.vue';
Vue.component('my-icon', MyIcon);

Then, I use my-icon in the project and got an error.

Do you have any comments or suggestions for this?

P.S. I think this is because We need to extend Vue class in *.vue file. Can I use property decorators without extending a Vue instance?

[jarekcieslak]

Sure. So by saying that the library is marked as external, you tell webpack/rollup not to bundle it together with the rest of js files, even if the library is referenced from js files.

You push the responsibility of providing this library (eg. vue-property-decorator) to the application consuming your library. I was using rollup in my project. Everything described in more verbose way here: https://rollupjs.org/guide/en#peer-dependencies, and I see that webpack has something similar: https://webpack.js.org/configuration/externals/

[social-uni]

+1

I customized a component and introduced it into the project in the form of link npm, which triggered this error

<template>
  <div>
    <slot></slot>
  </div>
</template>

<script lang="ts">
import {Component, Vue} from 'vue-property-decorator'

@Component
export default class TestDiv extends Vue {

}

</script>

{
  "name": "YComponent",
  "version": "1.0.0",
  "description": "",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "dependencies": {
    "pinyin-match": "^1.1.8",
    "element-ui": "^2.13.1"
  },
  "devDependencies": {
    "vue-class-component": "^7.2.3",
    "vue-property-decorator": "^9.1.2",
    "ts-node": "^10.7.0",
    "tslib": "^2.4.0",
    "typescript": "4.6.3",
    "vue-template-compiler": "2.7.10"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}

"YComponent": "../YComponent"