`vize:croquis/cf/hydration-risk`

This code groups several reactivity findings, including a prop copied into a ref. It does not imply that every Date.now() expression is detected by the cross-file pass.

Default severity: error
Applies to: Analyzed component graph and the supported facts described below
Automatic fix: None; review related files and apply the repair
Options: No per-code options; supported CLI findings accept severity overrides

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

export default defineConfig({
  lint: {
    vize: { preset: "incremental", crossFile: true,
      rules: { "croquis/cf/hydration-risk": "warn" },
    },
  },
});

vp run lint

Shared project files

Use these unchanged files in both Bad and Good. Install the imported packages in the project: Vue, plus vue-router or Pinia where shown. Follow any version-specific support note. The entry root makes the component relationship explicit.

main.ts

import { createApp } from "vue";
import Root from "./App.vue";
createApp(Root).mount("#app");

index.html

<div id="app"></div>
<script type="module" src="/main.ts"></script>

Bad

The child initializes ref(props.count) once, so its local count no longer follows later parent prop changes. This is the current prop-to-ref producer, not a general nondeterministic-SSR example.

App.vue

<script setup lang="ts">
import Child from "./Child.vue";
</script>
<template><Child :count="0" /></template>

Child.vue

<script setup lang="ts">
import { ref } from "vue";
const props = defineProps<{ count: number }>();
const count = ref(props.count);
</script>
<template><p>{{ count }}</p></template>

Good

toRef(props, "count") points to the prop instead of copying its initial value into independent state.

App.vue

<script setup lang="ts">
import Child from "./Child.vue";
</script>
<template><Child :count="0" /></template>

Child.vue

<script setup lang="ts">
import { toRef } from "vue";
const props = defineProps<{ count: number }>();
const count = toRef(props, "count");
</script>
<template><p>{{ count }}</p></template>

The Good files demonstrate the change described above; other diagnostics can still apply to the complete project.

Public explanation

Producer

Cross-file index