From fb68acfa6bbfc08a2f0f9319d227b83fd93fc718 Mon Sep 17 00:00:00 2001
From: Tim Yung <yungsters@fb.com>
Date: Mon, 14 May 2018 15:48:52 -0700
Subject: [PATCH] Fix Type for ReactNative.NativeComponent

---
 .../src/ReactNativeTypes.js                   | 24 ++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/packages/react-native-renderer/src/ReactNativeTypes.js b/packages/react-native-renderer/src/ReactNativeTypes.js
index bf94119739334..c38b0b44ebcf9 100644
--- a/packages/react-native-renderer/src/ReactNativeTypes.js
+++ b/packages/react-native-renderer/src/ReactNativeTypes.js
@@ -4,10 +4,12 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
+ * @format
  * @flow
- * @providesModule ReactNativeTypes
  */
 
+import React from 'react';
+
 export type MeasureOnSuccessCallback = (
   x: number,
   y: number,
@@ -52,6 +54,22 @@ export type ReactNativeBaseComponentViewConfig = {
 
 export type ViewConfigGetter = () => ReactNativeBaseComponentViewConfig;
 
+/**
+ * Class only exists for its Flow type.
+ */
+class ReactNativeComponent<Props> extends React.Component<Props> {
+  blur(): void {}
+  focus(): void {}
+  measure(callback: MeasureOnSuccessCallback): void {}
+  measureInWindow(callback: MeasureInWindowOnSuccessCallback): void {}
+  measureLayout(
+    relativeToNativeNode: number,
+    onSuccess: MeasureLayoutOnSuccessCallback,
+    onFail?: () => void,
+  ): void {}
+  setNativeProps(nativeProps: Object): void {}
+}
+
 /**
  * This type keeps ReactNativeFiberHostComponent and NativeMethodsMixin in sync.
  * It can also provide types for ReactNative applications that use NMM or refs.
@@ -87,7 +105,7 @@ type SecretInternalsFabricType = {
  * Provide minimal Flow typing for the high-level RN API and call it a day.
  */
 export type ReactNativeType = {
-  NativeComponent: any,
+  NativeComponent: typeof ReactNativeComponent,
   findNodeHandle(componentOrHandle: any): ?number,
   render(
     element: React$Element<any>,
@@ -102,7 +120,7 @@ export type ReactNativeType = {
 };
 
 export type ReactFabricType = {
-  NativeComponent: any,
+  NativeComponent: typeof ReactNativeComponent,
   findNodeHandle(componentOrHandle: any): ?number,
   render(
     element: React$Element<any>,