hoist

Author: Rich-Harris

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

@@ -113,24 +113,14 @@ export function create_ownership_validator(props) {
 	const component = component_context?.function;
 	const parent = component_context?.p?.function;
 
-	/** @param {string} prop_name */
-	function is_bound(prop_name) {
-		// Can be the case when someone does `mount(Component, props)` with `let props = $state({...})`
-		// or `createClassComponent(Component, props)`
-		const is_entry_props = STATE_SYMBOL in props || LEGACY_PROPS in props;
-		const is_bound =
-			!!get_descriptor(props, prop_name)?.set || (is_entry_props && prop_name in props);
-		return is_bound;
-	}
-
 	return {
 		/**
 		 * @param {any[]} path
 		 * @param {any} result
 		 */
 		mutation: (path, result) => {
 			const prop_name = path[0];
-			if (is_bound(prop_name) || !parent) {
+			if (is_bound(props, prop_name) || !parent) {
 				return result;
 			}
 
@@ -153,7 +143,7 @@ export function create_ownership_validator(props) {
 		 * @param {() => any} value
 		 */
 		binding: (key, child_component, value) => {
-			if (!is_bound(key) && parent && value()?.[STATE_SYMBOL]) {
+			if (!is_bound(props, key) && parent && value()?.[STATE_SYMBOL]) {
 				w.ownership_invalid_binding(
 					component[FILENAME],
 					key,
@@ -164,3 +154,14 @@ export function create_ownership_validator(props) {
 		}
 	};
 }
+
+/**
+ * @param {Record<string, any>} props
+ * @param {string} prop_name
+ */
+function is_bound(props, prop_name) {
+	// Can be the case when someone does `mount(Component, props)` with `let props = $state({...})`
+	// or `createClassComponent(Component, props)`
+	const is_entry_props = STATE_SYMBOL in props || LEGACY_PROPS in props;
+	return !!get_descriptor(props, prop_name)?.set || (is_entry_props && prop_name in props);
+}