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"unsafe member access" errors when using exposed methods from Vue's templaterefs #240

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@paveloom

Description

@paveloom

Before You File a Bug Report Please Confirm You Have Done The Following...

  • I'm usingeslint-plugin-vue.
  • I'm sure the problem is a parser problem. (If you are not sure, search for the issue ineslint-plugin-vue repo and open the issue ineslint-plugin-vue repo if there is no solution.
  • I have tried restarting my IDE and the issue persists.
  • I have updated to the latest version of the packages.

What version of ESLint are you using?

9.15.0

What version ofeslint-plugin-vue andvue-eslint-parser are you using?

  • vue-eslint-parser@9.4.3
  • eslint-plugin-vue@9.31.0

What did you do?

See the reproduction steps below. Here are the relevant source code files:

App.vue
<script setup lang="ts">import {useTemplateRef }from"vue";importModalfrom"@/components/Modal.vue";const modal=useTemplateRef<InstanceType<typeofModal>>("modal");function close() {modal.value?.close();}</script><template>  <button@click="modal?.open!">    Open modal  </button>  <button@click="close">    Close modal  </button>  <Teleportto="body">    <Modalref="modal" />  </Teleport></template>
Modal.vue
<script setup lang="ts">import {ref }from"vue";const isOpen=ref(false);function open() {isOpen.value=true;}function close() {isOpen.value=false;}defineExpose({open,close});</script><template>  <divv-if="isOpen">    Modal  </div></template>

The intent is to use the exported functions from an instance of theModal component whenever needed. For that, I use Vue'suseTemplateRef function and thedefineExpose compiler macro.

While running the lint script, I get the following errors:

src/components/App.vue  9:3   error  Unsafe call of a(n) `any` typed value          @typescript-eslint/no-unsafe-call  9:16  error  Unsafe member access .close on an `any` value  @typescript-eslint/no-unsafe-member-access

Note that there are two functions exported from theModal component, namely,open andclose. However, I use these functions differently in theApp component. Theopen method is used directly in thetemplate section, whereas for theclose function I've created a wrapper of the same name in thescript setup section. Note that the error of using anany value is reported only on the wrapper (specifically, on the callmodal.value?.close()).

This issue is also eerily similar tovuejs/core#6882.

What did you expect to happen?

No errors should have been reported.

What actually happened?

The following errors are reported:

src/components/App.vue  9:3   error  Unsafe call of a(n) `any` typed value          @typescript-eslint/no-unsafe-call  9:16  error  Unsafe member access .close on an `any` value  @typescript-eslint/no-unsafe-member-access

Link to Minimal Reproducible Example

https://github.com/paveloom-o/vue-playground/tree/use-template-ref

Additional comments

This issue was moved fromvuejs/core#12433 andtypescript-eslint/typescript-eslint#10359.

Repro Steps

  1. git clone --branch use-template-ref https://github.com/paveloom-o/vue-playground.git
  2. cd vue-playground
  3. direnv allow (OPTIONAL: if you havedirenv andnix-direnv installed)
  4. npm install
  5. npm run lint

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