From 85f3498fdaefd9fa15394c8a0e24f1d58a8efff7 Mon Sep 17 00:00:00 2001
From: Toru Kobayashi <koba0004@gmail.com>
Date: Thu, 29 Jun 2017 03:01:46 +0900
Subject: [PATCH] Types Fiber as an exact object type (#10063)

---
 src/renderers/shared/fiber/ReactFiber.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/renderers/shared/fiber/ReactFiber.js b/src/renderers/shared/fiber/ReactFiber.js
index 1cebd90a03..34b7482975 100644
--- a/src/renderers/shared/fiber/ReactFiber.js
+++ b/src/renderers/shared/fiber/ReactFiber.js
@@ -66,7 +66,7 @@ if (__DEV__) {
 
 // A Fiber is work on a Component that needs to be done or was done. There can
 // be more than one per component.
-export type Fiber = {
+export type Fiber = {|
   // __DEV__ only
   _debugID?: DebugID,
   _debugSource?: Source | null,
@@ -176,7 +176,7 @@ export type Fiber = {
   // Conceptual aliases
   // workInProgress : Fiber ->  alternate The alternate used for reuse happens
   // to be the same as work in progress.
-};
+|};
 
 if (__DEV__) {
   var debugCounter = 1;