From 43c372d81722e48b105d5121a2cfdf614f1e7704 Mon Sep 17 00:00:00 2001
From: DD <didinele.dev@gmail.com>
Date: Sat, 4 Jun 2022 16:14:01 +0300
Subject: [PATCH] fix(AddUndefinedToPossiblyUndefinedProperties): recurse down
 objects (#471)

---
 deno/utils/internals.ts | 4 +++-
 utils/internals.ts      | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/deno/utils/internals.ts b/deno/utils/internals.ts
index 21510966..0ec17340 100644
--- a/deno/utils/internals.ts
+++ b/deno/utils/internals.ts
@@ -7,7 +7,9 @@ export type Nullable<T> = {
  * (since JSON.stringify ignores undefined properties)
  */
 export type AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Base> = {
-	[K in keyof Base]: Base[K] extends Exclude<Base[K], undefined> ? Base[K] : Base[K] | undefined;
+	[K in keyof Base]: Base[K] extends Exclude<Base[K], undefined>
+		? AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Base[K]>
+		: AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Base[K]> | undefined;
 };
 
 export type StrictPartial<Base> = AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Partial<Base>>;
diff --git a/utils/internals.ts b/utils/internals.ts
index 21510966..0ec17340 100644
--- a/utils/internals.ts
+++ b/utils/internals.ts
@@ -7,7 +7,9 @@ export type Nullable<T> = {
  * (since JSON.stringify ignores undefined properties)
  */
 export type AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Base> = {
-	[K in keyof Base]: Base[K] extends Exclude<Base[K], undefined> ? Base[K] : Base[K] | undefined;
+	[K in keyof Base]: Base[K] extends Exclude<Base[K], undefined>
+		? AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Base[K]>
+		: AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Base[K]> | undefined;
 };
 
 export type StrictPartial<Base> = AddUndefinedToPossiblyUndefinedPropertiesOfInterface<Partial<Base>>;