From 38423fd96b9369a701471973f25d5d784db08d49 Mon Sep 17 00:00:00 2001
From: Marco Wang <marcoww@meta.com>
Date: Tue, 10 Mar 2026 14:13:50 -0700
Subject: [PATCH] [flow] Migrate type param bounds from `:` to `extends` in
 ReactNativeTypes

Flow's type parameter bound syntax `<T: Type>` has been deprecated in
favor of `<T extends Type>`. This updates the 5 occurrences in
ReactNativeTypes.js to use the new syntax.

This is the source file that gets synced to react-native-github at
Libraries/Renderer/shims/ReactNativeTypes.js via the build pipeline.
---
 packages/react-native-renderer/src/ReactNativeTypes.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/react-native-renderer/src/ReactNativeTypes.js b/packages/react-native-renderer/src/ReactNativeTypes.js
index cfd026bc7d08..9205d8120651 100644
--- a/packages/react-native-renderer/src/ReactNativeTypes.js
+++ b/packages/react-native-renderer/src/ReactNativeTypes.js
@@ -83,7 +83,7 @@ type InspectorDataProps = $ReadOnly<{
 }>;
 
 type InspectorDataGetter = (
-  <TElementType: React.ElementType>(
+  <TElementType extends React.ElementType>(
     componentOrHandle: React.ElementRef<TElementType> | number,
   ) => ?number,
 ) => $ReadOnly<{
@@ -142,10 +142,10 @@ export type RenderRootOptions = {
  * Provide minimal Flow typing for the high-level RN API and call it a day.
  */
 export type ReactNativeType = {
-  findHostInstance_DEPRECATED<TElementType: React.ElementType>(
+  findHostInstance_DEPRECATED<TElementType extends React.ElementType>(
     componentOrHandle: ?(React.ElementRef<TElementType> | number),
   ): ?PublicInstance,
-  findNodeHandle<TElementType: React.ElementType>(
+  findNodeHandle<TElementType extends React.ElementType>(
     componentOrHandle: ?(React.ElementRef<TElementType> | number),
   ): ?number,
   isChildPublicInstance(parent: PublicInstance, child: PublicInstance): boolean,
@@ -171,10 +171,10 @@ export opaque type Node = mixed;
 export opaque type InternalInstanceHandle = mixed;
 
 export type ReactFabricType = {
-  findHostInstance_DEPRECATED<TElementType: React.ElementType>(
+  findHostInstance_DEPRECATED<TElementType extends React.ElementType>(
     componentOrHandle: ?(React.ElementRef<TElementType> | number),
   ): ?PublicInstance,
-  findNodeHandle<TElementType: React.ElementType>(
+  findNodeHandle<TElementType extends React.ElementType>(
     componentOrHandle: ?(React.ElementRef<TElementType> | number),
   ): ?number,
   dispatchCommand(