vue/require-valid-default-prop fails to report error on type mismatch

[jantajov]

Given following single file Vue.js component:

<template>
  <div>Hello</div>
</template>

<script>
  export default {
    name: 'AppHello',
    props: {
      textProp: {type: String, default: () => 1233}
    }
  }
</script>

I would expect to get vue/require-valid-default-prop error as the prop does not have valid default value. Types does not match.

Howsoever, no such error is thrown during linting.

I am not sure if this is intended. But if it is, at least the docs should be updated.

Versions:

vue/cli-plugin-eslint is ^3.11.0"
eslint is ^5.16.0
node is ^10.16.0

[ota-meshi]

Thank you for this issue.

Now, the vue/require-valid-default-prop rule does not check what the function returns.
#119 (comment)

I think we need to add a check to vue/require-valid-default-prop rule.