`vue/warn-custom-block`

Warn about custom blocks in SFC files

Default severity: warning
Presets: nuxt, opinionated
Automatic fix: None; review the suggested change
Applies to: Vue SFC templates and blocks, with script context where the rule requires it
Options: No rule-specific options. Severity and preset selection are configurable.

Configuration (Vite+)

import { defineConfig } from "@vizejs/vite-plugin/vite-plus";

export default defineConfig({
  lint: {
    vize: {
      "preset": "incremental",
      "rules": {
        "vue/warn-custom-block": "warn"
      }
    },
  },
});

vp run lint

Bad

The SFC contains an <i18n> custom block, which needs an external integration beyond ordinary template/script/style processing.

<i18n>
{ "en": { "hello": "Hello" } }
</i18n>

<template>
  <p>{{ hello }}</p>
</template>

Good

The example uses standard template and script-setup blocks. This optional portability warning does not mean every custom block is invalid Vue.

<template>
  <p>{{ hello }}</p>
</template>

<script setup lang="ts">
const hello = "Hello";
</script>

Good avoids this rule's finding under the configuration above; other rules may still report diagnostics.

Implementation · All rules