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fix: RecursivePartial recursion stopped on optional field #477

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19 changes: 9 additions & 10 deletions src/interface.ts
Original file line number Diff line number Diff line change
Expand Up @@ -210,16 +210,15 @@ export interface InternalHooks {
getInitialValue: (namePath: InternalNamePath) => StoreValue;
}

/** Only return partial when type is not any */
type RecursivePartial<T> = T extends object
? {
[P in keyof T]?: T[P] extends (infer U)[]
? RecursivePartial<U>[]
: T[P] extends object
? RecursivePartial<T[P]>
: T[P];
}
: any;
type Primitive = number | string | boolean | bigint | symbol | undefined | null

type RecursivePartial<T> = {
[P in keyof T]?: T[P] extends Primitive
? T[P]
: T[P] extends (infer U)[]
? RecursivePartial<U>[]
: RecursivePartial<T[P]>
}

export interface FormInstance<Values = any> {
// Origin Form API
Expand Down