FormPathLeaves didn't handle fields with type unknown.

Author: ciscoheat

CHANGELOG.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `defaults` didn't generate correct `SuperValidated` data, making `superForm` confused. Also fixed type signature and removed the `jsonSchema` option that wasn't applicable.
 - A successful `PageData` result from `invalidateAll` was overwritten by the `ActionData` result.
 - Using `goto` in events didn't work when the target page redirected.
+- `FormPathLeaves` didn't handle fields with type `unknown`.
 
 ## [2.5.0] - 2024-02-21
 

src/lib/stringPath.ts

@@ -149,7 +149,14 @@ type StringPath<
 											>
 										: never)
 						:
-								| If<Options, 'filter', 'all', Concat<Options['path'], K>, never, T[K]>
+								| If<
+										Options,
+										'filter',
+										'all',
+										Concat<Options['path'], K>,
+										unknown extends T[K] ? Concat<Options['path'], K> : never,
+										T[K]
+								  >
 								| StringPath<
 										NonNullable<T[K]>,
 										{

src/tests/legacy/paths.test-d.ts

@@ -300,13 +300,16 @@ test('setError paths', async () => {
 
 test('FormPath with type narrowing, simple types', () => {
 	type Numbers = FormPath<Obj, number>;
+	type Nevers = FormPath<Obj, File>;
 
 	const t1: Numbers = 'points';
 	const t2: Numbers = 'tags[2].id';
 	const t3: Numbers = 'tags[2].parents[3]';
 
 	// @ts-expect-error incorrect path
-	const nested: Numbers = 'name';
+	const f1: Numbers = 'name';
+	// @ts-expect-error incorrect path
+	const f2: Nevers = 'nope';
 });
 
 test('FormPath with type narrowing, arrays', () => {
@@ -320,6 +323,22 @@ test('FormPath with type narrowing, arrays', () => {
 	const i2: NameArrays = 'tags';
 });
 
+test('FormPath with unknown type', () => {
+	const schema = z.object({
+		name: z.string(),
+		age: z.number(),
+		homePlanet: z.unknown()
+	});
+
+	type FP = FormPath<z.infer<typeof schema>>;
+	type FPL = FormPathLeaves<z.infer<typeof schema>>;
+	type FPA = FormPathArrays<z.infer<typeof schema>>;
+
+	const t1: FP = 'homePlanet';
+	const t2: FPL = 'homePlanet';
+	const t3: FPA = 'homePlanet';
+});
+
 ///////////////////////////////////////////////////
 
 // Recursive schema test