8000 Not sure if bug - Missing event in nested wrapped components V3 · Issue #5459 · vuejs/language-tools · GitHub
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Not sure if bug - Missing event in nested wrapped components V3 #5459
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@fazulk

Description

@fazulk

Vue - Official extension or vue-tsc version

3

VSCode version

latest

Vue version

3.5

TypeScript version

5.8.3

System Info

System:
    OS: macOS 15.5
    CPU: (12) arm64 Apple M3 Pro
    Memory: 285.34 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.local/state/fnm_multishells/99960_1750819359200/bin/node
    Yarn: 1.22.22 - ~/.local/state/fnm_multishells/99960_1750819359200/bin/yarn
    npm: 10.9.2 - ~/.local/state/fnm_multishells/99960_1750819359200/bin/npm
    pnpm: 9.0.2 - /opt/homebrew/bin/pnpm
    bun: 1.1.4 - /opt/homebrew/bin/bun
  Browsers:
    Chrome: 138.0.7204.51
    Safari: 18.5

package.json dependencies

{
  "dependencies": {
    "@vue/tsconfig": "^0.7.0",
    "typescript": "^5.8.3",
    "vue": "^3.5.13",
    "vue-tsc": "^3.0.0"
  },
  "scripts": {
    "build": "vue-tsc --noEmit"
  }
}

Steps to reproduce

Description

When using nested component wrappers, the @click event is not properly propagated through the component chain, resulting in a "missing event" error.

Component Structure

Component C (uses Component B)
  ↓
Component B (wraps Component A)
  ↓
Component A (wraps Button)
  ↓
Button (native element)

Issue

The @click event defined in Component C is throwing a type error

Code Examples

Component A (Button Wrapper)

<template>
  <button 
    class="btn"
    :disabled="disabled"
    :type="type"
  >
    <slot />
  </button>
</template>

<script setup lang="ts">
interface Props {
  disabled?: boolean
  type?: 'button' | 'submit' | 'reset'
}

defineProps<Props>()
</script>

Component B (Wraps Component A)

<template>
  <div class="wrapper">
    <ComponentA 
      :disabled="disabled"
      :type="type"
      :loading="loading"
    >
      <slot />
    </ComponentA>
  </div>
</template>

<script setup lang="ts">
import ComponentA from './ComponentA.vue'

interface Props {
  disabled?: boolean
  type?: 'button' | 'submit' | 'reset'
  loading?: boolean
}

defineProps<Props>()
</script>

Component C (Uses Component B)

<template>
  <ComponentB 
    :disabled="isDisabled"
    :type="buttonType"
    :loading="isLoading"
    @click="handleClick" <-- type error here 
  >
    Click me
  </ComponentB>
</template>

<script setup lang="ts">
import ComponentB from './ComponentB.vue'

const isDisabled = ref(false)
const buttonType = ref('button')
const isLoading = ref(false)

const handleClick = () => {
  console.log('Button clicked!')
}
</script>

What is expected?

Not expecting a type error in Component C

What is actually happening?

Error

Object literal may only specify known properties, and 'onClick' does not exist in type 'NonNullable<{ readonly disabled?: boolean | undefined; readonly type?: "button" | "submit" | "reset" | undefined; } & VNodeProps & AllowedComponentProps & ComponentCustomProps>'.ts-plugin(2353)

Link to minimal reproduction

No response

Any additional comments?

Great job on v3 btw! Looks great regardless 🎉

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