From 4a48ef059f04fce76d273afc58b7b9d952a58259 Mon Sep 17 00:00:00 2001
From: Yaacov Rydzinski <yaacovCR@gmail.com>
Date: Tue, 31 May 2022 15:31:43 +0300
Subject: [PATCH] fix GraphQLWrappingType

GraphQLNonNull wrapper can only be applies to nullable types

related: #3597
see also: https://github.com/graphql/graphql-js/pull/3617#discussion_r885544662
---
 src/type/definition.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/type/definition.ts b/src/type/definition.ts
index 9eea02e8eaf..c31343051a9 100644
--- a/src/type/definition.ts
+++ b/src/type/definition.ts
@@ -395,7 +395,7 @@ export class GraphQLNonNull<T extends GraphQLNullableType> {
 
 export type GraphQLWrappingType =
   | GraphQLList<GraphQLType>
-  | GraphQLNonNull<GraphQLType>;
+  | GraphQLNonNull<GraphQLNullableType>;
 
 export function isWrappingType(type: unknown): type is GraphQLWrappingType {
   return isListType(type) || isNonNullType(type);