Revert "fix: ensure deep mutation ownership widening" (#11155)

* Revert "fix: ensure deep mutation ownership widening (#11094)"

This reverts commit 8578857332.

* don't delete the changeset, it's already merged

packages/svelte/src/internal/client/dev/ownership.js

@@ -2,7 +2,6 @@
 
 import { STATE_SYMBOL } from '../constants.js';
 import { untrack } from '../runtime.js';
-import { get_descriptors } from '../utils.js';
 
 /** @type {Record<string, Array<{ start: Location, end: Location, component: Function }>>} */
 const boundaries = {};
@@ -92,107 +91,49 @@ export function mark_module_end() {
 	}
 }
 
-let add_owner_visited = new Set();
-
 /**
  *
  * @param {any} object
  * @param {any} owner
  */
 export function add_owner(object, owner) {
-	// Needed because ownership addition can invoke getters on a proxy,
-	// calling add_owner anew, so just keeping the set as part of
-	// add_owner_to_object would not be enough.
-	const prev = add_owner_visited;
-	try {
-		add_owner_visited = new Set(add_owner_visited);
 	untrack(() => {
-			add_owner_to_object(object, owner, add_owner_visited);
+		add_owner_to_object(object, owner);
 	});
-	} finally {
-		add_owner_visited = prev;
-	}
 }
 
 /**
  * @param {any} object
  * @param {Function} owner
- * @param {Set<any>} visited
  */
-function add_owner_to_object(object, owner, visited) {
+function add_owner_to_object(object, owner) {
-	if (visited.has(object)) return;
-	visited.add(object);
-
 	if (object?.[STATE_SYMBOL]?.o && !object[STATE_SYMBOL].o.has(owner)) {
 		object[STATE_SYMBOL].o.add(owner);
+
+		for (const key in object) {
+			add_owner_to_object(object[key], owner);
+		}
 	}
-	// Not inside previous if-block; there could be normal objects in-between
-	traverse_for_owners(object, (nested) => add_owner_to_object(nested, owner, visited));
 }
-
-let strip_owner_visited = new Set();
 
 /**
  * @param {any} object
  */
 export function strip_owner(object) {
-	// Needed because ownership stripping can invoke getters on a proxy,
-	// calling strip_owner anew, so just keeping the set as part of
-	// strip_owner_from_object would not be enough.
-	const prev = strip_owner_visited;
-	try {
 	untrack(() => {
-			strip_owner_from_object(object, strip_owner_visited);
+		strip_owner_from_object(object);
 	});
-	} finally {
-		strip_owner_visited = prev;
-	}
 }
 
 /**
  * @param {any} object
- * @param {Set<any>} visited
  */
-function strip_owner_from_object(object, visited) {
+function strip_owner_from_object(object) {
-	if (visited.has(object)) return;
-	visited.add(object);
-
 	if (object?.[STATE_SYMBOL]?.o) {
 		object[STATE_SYMBOL].o = null;
-	}
-	// Not inside previous if-block; there could be normal objects in-between
-	traverse_for_owners(object, (nested) => strip_owner_from_object(nested, visited));
-}
 
-/**
- * @param {any} object
- * @param {(obj: any) => void} cb
- */
-function traverse_for_owners(object, cb) {
-	if (typeof object === 'object' && object !== null && !(object instanceof EventTarget)) {
 		for (const key in object) {
-			cb(object[key]);
+			strip_owner(object[key]);
-		}
-		// deal with state on classes
-		const proto = Object.getPrototypeOf(object);
-		if (
-			proto !== Object.prototype &&
-			proto !== Array.prototype &&
-			proto !== Map.prototype &&
-			proto !== Set.prototype &&
-			proto !== Date.prototype
-		) {
-			const descriptors = get_descriptors(proto);
-			for (let key in descriptors) {
-				const get = descriptors[key].get;
-				if (get) {
-					try {
-						cb(object[key]);
-					} catch (e) {
-						// continue
-					}
-				}
-			}
 		}
 	}
 }

packages/svelte/tests/runtime-runes/samples/non-local-mutation-inherited-owner-6/_config.js

@@ -1,35 +0,0 @@
-import { tick } from 'svelte';
-import { test } from '../../test';
-
-/** @type {typeof console.warn} */
-let warn;
-
-/** @type {any[]} */
-let warnings = [];
-
-export default test({
-	compileOptions: {
-		dev: true
-	},
-
-	before_test: () => {
-		warn = console.warn;
-
-		console.warn = (...args) => {
-			warnings.push(...args);
-		};
-	},
-
-	after_test: () => {
-		console.warn = warn;
-		warnings = [];
-	},
-
-	async test({ assert, target }) {
-		const btn = target.querySelector('button');
-
-		await btn?.click();
-		await tick();
-		assert.deepEqual(warnings.length, 0);
-	}
-});

packages/svelte/tests/runtime-runes/samples/non-local-mutation-inherited-owner-6/main.svelte

@@ -1,25 +0,0 @@
-<script lang="ts">
-	import { setContext } from 'svelte';
-	import Sub from './sub.svelte';
-
-	class Person1 {
-		value = $state({ person: 'John', age: 33 })
-	}
-	const class_nested_state = $state(new Person1());
-
-	class Person2 {
-		person = $state('John');
-		age = $state(33);
-	}
-	const state_nested_class = $state({ value: new Person2() });
-
-	const nested_state = $state({ person: 'John', age: 33 });
-
-	setContext('foo', {
-		nested_state,
-		get class_nested_state() { return class_nested_state },
-		get state_nested_class() { return state_nested_class }
-	})
-</script>
-
-<Sub {class_nested_state} {state_nested_class} {nested_state} />

packages/svelte/tests/runtime-runes/samples/non-local-mutation-inherited-owner-6/sub.svelte

@@ -1,11 +0,0 @@
-<script>
-	import { getContext } from "svelte";
-
-	const foo = getContext('foo')
-</script>
-
-<button onclick={() => {
-	foo.class_nested_state.value.age++;
-	foo.state_nested_class.value.age++;
-	foo.nested_state.age++;
-}}>mutate</button>