From 2b249a3ebf4f914d0bb7a272089f057a5781bd69 Mon Sep 17 00:00:00 2001
From: Ivan Goncharov <ivan.goncharov.ua@gmail.com>
Date: Sat, 1 Jun 2019 22:59:56 +0300
Subject: [PATCH] Allow null value on 'data' property of 'ExecutionResult' type

---
 src/execution/execute.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/execution/execute.js b/src/execution/execute.js
index 6f57c1e2f5..e3e80e3724 100644
--- a/src/execution/execute.js
+++ b/src/execution/execute.js
@@ -113,7 +113,7 @@ export type ExecutionContext = {|
  */
 export type ExecutionResult = {
   errors?: $ReadOnlyArray<GraphQLError>,
-  data?: ObjMap<mixed>,
+  data?: ObjMap<mixed> | null,
 };
 
 export type ExecutionArgs = {|
@@ -238,7 +238,7 @@ function executeImpl(
 function buildResponse(
   exeContext: ExecutionContext,
   data: PromiseOrValue<ObjMap<mixed> | null>,
-) {
+): ExecutionResult {
   if (isPromise(data)) {
     return data.then(resolved => buildResponse(exeContext, resolved));
   }