test and changeset

.changeset/stale-books-perform.md

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+---
+'svelte': patch
+---
+
+fix: take into account setters when spreading and binding

packages/svelte/tests/runtime-runes/samples/bind-and-spread/_config.js

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+import { test } from '../../test';
+
+export default test({
+	html: `<button class="foo">0</button><button class="foo">0</button>`,
+
+	async test({ assert, target }) {
+		const [btn1, btn2] = target.querySelectorAll('button');
+
+		await btn1?.click();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button class="foo">1</button><button class="foo">1</button>`
+		);
+
+		await btn2?.click();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button class="foo">2</button><button class="foo">2</button>`
+		);
+	}
+});

packages/svelte/tests/runtime-runes/samples/bind-and-spread/button.svelte

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+<script>
+	let { value, ...props } = $props();
+	
+</script>
+
+<button {...props} onclick={() => value++}>{value}</button>

packages/svelte/tests/runtime-runes/samples/bind-and-spread/main.svelte

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+<script>
+	import Button from './button.svelte';
+	
+	let value = $state(0);
+
+	const props = {
+		class: 'foo'
+	};
+</script>
+
+<Button {...props} bind:value />
+<button {...props} onclick={() => value++}>{value}</button>