fix: fix RecursiveFormFields type for recursive or unknown schemas

.changeset/beige-dogs-sell.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fix: fix `RecursiveFormFields` type for recursive or unknown schemas

packages/kit/CHANGELOG.md

@@ -1,5 +1,11 @@
 # @sveltejs/kit
 
+## 2.46.5
+### Patch Changes
+
+
+- fix: ensure `form` remote functions' `fields.set` triggers reactivity ([#14661](https://github.com/sveltejs/kit/pull/14661))
+
 ## 2.46.4
 ### Patch Changes
 

packages/kit/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@sveltejs/kit",
-	"version": "2.46.4",
+	"version": "2.46.5",
 	"description": "SvelteKit is the fastest way to build Svelte apps",
 	"keywords": [
 		"framework",

packages/kit/src/exports/public.d.ts

@@ -1917,19 +1917,31 @@ type RemoteFormFieldContainer<Value> = RemoteFormFieldMethods<Value> & {
 /**
  * Recursive type to build form fields structure with proxy access
  */
-type RemoteFormFields<T> =
+export type RemoteFormFields<T, Leaf extends boolean = false> =
 	WillRecurseIndefinitely<T> extends true
-		? RecursiveFormFields
+		? RecursiveFormFields<Leaf>
 		: NonNullable<T> extends string | number | boolean | File
 			? RemoteFormField<NonNullable<T>>
 			: T extends string[] | File[]
 				? RemoteFormField<T> & { [K in number]: RemoteFormField<T[number]> }
 				: T extends Array<infer U>
-					? RemoteFormFieldContainer<T> & { [K in number]: RemoteFormFields<U> }
-					: RemoteFormFieldContainer<T> & { [K in keyof T]-?: RemoteFormFields<T[K]> };
+					? RemoteFormFieldContainer<T> & {
+							[K in number]: RemoteFormFields<
+								U,
+								U extends RemoteFormFieldValue | unknown ? true : false
+							>;
+						}
+					: RemoteFormFieldContainer<T> & {
+							[K in keyof T]-?: RemoteFormFields<
+								T[K],
+								T[K] extends RemoteFormFieldValue | unknown ? true : false
+							>;
+						};
 
 // By breaking this out into its own type, we avoid the TS recursion depth limit
-type RecursiveFormFields = RemoteFormField<any> & { [key: string | number]: RecursiveFormFields };
+type RecursiveFormFields<Leaf extends boolean = false> = (Leaf extends true
+	? RemoteFormField<any>
+	: RemoteFormFieldContainer<any>) & { [key: string | number]: RecursiveFormFields<true> };
 
 type MaybeArray<T> = T | T[];
 

packages/kit/src/version.js

@@ -1,4 +1,4 @@
 // generated during release, do not modify
 
 /** @type {string} */
-export const VERSION = '2.46.4';
+export const VERSION = '2.46.5';

packages/kit/types/index.d.ts

@@ -1893,19 +1893,31 @@ declare module '@sveltejs/kit' {
 	/**
 	 * Recursive type to build form fields structure with proxy access
 	 */
-	type RemoteFormFields<T> =
+	export type RemoteFormFields<T, Leaf extends boolean = false> =
 		WillRecurseIndefinitely<T> extends true
-			? RecursiveFormFields
+			? RecursiveFormFields<Leaf>
 			: NonNullable<T> extends string | number | boolean | File
 				? RemoteFormField<NonNullable<T>>
 				: T extends string[] | File[]
 					? RemoteFormField<T> & { [K in number]: RemoteFormField<T[number]> }
 					: T extends Array<infer U>
-						? RemoteFormFieldContainer<T> & { [K in number]: RemoteFormFields<U> }
-						: RemoteFormFieldContainer<T> & { [K in keyof T]-?: RemoteFormFields<T[K]> };
+						? RemoteFormFieldContainer<T> & {
+								[K in number]: RemoteFormFields<
+									U,
+									U extends RemoteFormFieldValue | unknown ? true : false
+								>;
+							}
+						: RemoteFormFieldContainer<T> & {
+								[K in keyof T]-?: RemoteFormFields<
+									T[K],
+									T[K] extends RemoteFormFieldValue | unknown ? true : false
+								>;
+							};
 
 	// By breaking this out into its own type, we avoid the TS recursion depth limit
-	type RecursiveFormFields = RemoteFormField<any> & { [key: string | number]: RecursiveFormFields };
+	type RecursiveFormFields<Leaf extends boolean = false> = (Leaf extends true
+		? RemoteFormField<any>
+		: RemoteFormFieldContainer<any>) & { [key: string | number]: RecursiveFormFields<true> };
 
 	type MaybeArray<T> = T | T[];