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2 changes: 1 addition & 1 deletion packages/plugin-vue/src/handleHotUpdate.ts
Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@ export async function handleHotUpdate(
if (didUpdateStyle) {
updateType.push(`style`)
}
if (updateType.length) {
if (updateType.length || scriptChanged) {
if (file.endsWith('.vue')) {
// invalidate the descriptor cache so that the next transform will
// re-analyze the file and pick up the changes.
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5 changes: 5 additions & 0 deletions playground/vue/Hmr.vue
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,10 @@
<p>Click the button then edit this message. The count should be preserved.</p>
<button class="hmr-inc" @click="count++">count is {{ count }}</button>
<span class="hmr-number">{{ number }}</span>
<div>
<span class="hmr-bar-text">bar-title</span>
<span class="hmr-bar">{{ bar }}</span>
</div>
</template>

<script setup lang="ts">
Expand All @@ -12,6 +16,7 @@ import { test } from './lib.js'
const number = test()

let foo: number = 0
let bar = 'bar'

const count = ref(foo)
</script>
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18 changes: 18 additions & 0 deletions playground/vue/__tests__/vue.spec.ts
Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,24 @@ describe('hmr', () => {
await untilUpdated(() => page.textContent('.hmr-number'), '200')
})

test('should reload when script changes after a rerender', async () => {
// rerender
editFile('Hmr.vue', (code) => code.replace('bar-title', 'bar-title1'))
await untilUpdated(() => page.textContent('.hmr-bar-text'), 'bar-title1')

// change 'bar' to 'updated', should reload
editFile('Hmr.vue', (code) =>
code.replace(`let bar = 'bar'`, `let bar = 'updated'`),
)
await untilUpdated(() => page.textContent('.hmr-bar'), 'updated')

// change 'updated' to 'bar', should reload again not rerender
editFile('Hmr.vue', (code) =>
code.replace(`let bar = 'updated'`, `let bar = 'bar'`),
)
await untilUpdated(() => page.textContent('.hmr-bar'), 'bar')
})

test('global hmr for some scenarios', async () => {
editFile('Hmr.vue', (code) =>
code.replace('</template>', ' <Node/>\n' + '</template>'),
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