From 630ac4e7223b4df4dde5f5866f72cc03f9526890 Mon Sep 17 00:00:00 2001
From: Andrew Clark <git@andrewclark.io>
Date: Wed, 20 Sep 2023 16:07:33 -0400
Subject: [PATCH] Implement createFastHash for Bun

In Bun builds, createFastHash uses Bun.hash. See: https://bun.sh/docs/api/hashing#bun-hash
---
 packages/react-server/src/ReactServerStreamConfigBun.js | 4 +++-
 scripts/flow/environment.js                             | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/packages/react-server/src/ReactServerStreamConfigBun.js b/packages/react-server/src/ReactServerStreamConfigBun.js
index be53fb9d01dc9..276c7f59e490a 100644
--- a/packages/react-server/src/ReactServerStreamConfigBun.js
+++ b/packages/react-server/src/ReactServerStreamConfigBun.js
@@ -7,6 +7,8 @@
  * @flow
  */
 
+/* global Bun */
+
 type BunReadableStreamController = ReadableStreamController & {
   end(): mixed,
   write(data: Chunk | BinaryChunk): void,
@@ -98,5 +100,5 @@ export function closeWithError(destination: Destination, error: mixed): void {
 }
 
 export function createFastHash(input: string): string | number {
-  return input;
+  return Bun.hash(input);
 }
diff --git a/scripts/flow/environment.js b/scripts/flow/environment.js
index 18ba25264138e..7f3996de04fd8 100644
--- a/scripts/flow/environment.js
+++ b/scripts/flow/environment.js
@@ -281,3 +281,9 @@ declare module 'node:worker_threads' {
     port2: MessagePort;
   }
 }
+
+declare var Bun: {
+  hash(
+    input: string | $TypedArray | DataView | ArrayBuffer | SharedArrayBuffer,
+  ): number,
+};