From e1d2b7bc8231ab242cd55132ba690e5ad0a9a953 Mon Sep 17 00:00:00 2001
From: feugy <damien@vercel.com>
Date: Tue, 5 Sep 2023 13:53:21 +0200
Subject: [PATCH] chore: restore options to opt-in for server-side
 transpilation

---
 packages/next/src/build/swc/jest-transformer.ts | 3 +++
 packages/next/src/build/swc/options.ts          | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/packages/next/src/build/swc/jest-transformer.ts b/packages/next/src/build/swc/jest-transformer.ts
index 3ab9cf8d9d8fd..bc753093e44c4 100644
--- a/packages/next/src/build/swc/jest-transformer.ts
+++ b/packages/next/src/build/swc/jest-transformer.ts
@@ -84,6 +84,9 @@ const createTransformer: TransformerCreator<
     const jestConfig = getJestConfig(jestOptions)
 
     const swcTransformOpts = getJestSWCOptions({
+      isServer:
+        jestConfig.testEnvironment === 'node' ||
+        jestConfig.testEnvironment.includes('jest-environment-node'),
       filename,
       jsConfig: inputOptions?.jsConfig,
       resolvedBaseUrl: inputOptions?.resolvedBaseUrl,
diff --git a/packages/next/src/build/swc/options.ts b/packages/next/src/build/swc/options.ts
index 7cda8ec614236..8a944c55db0a1 100644
--- a/packages/next/src/build/swc/options.ts
+++ b/packages/next/src/build/swc/options.ts
@@ -237,6 +237,7 @@ function getEmotionOptions(
 }
 
 export function getJestSWCOptions({
+  isServer,
   filename,
   esm,
   modularizeImports,
@@ -247,6 +248,7 @@ export function getJestSWCOptions({
   pagesDir,
   hasServerComponents,
 }: {
+  isServer: boolean
   filename: string
   esm: boolean
   modularizeImports?: NextConfig['modularizeImports']
@@ -269,6 +271,7 @@ export function getJestSWCOptions({
     jsConfig,
     hasServerComponents,
     resolvedBaseUrl,
+    isServerLayer: isServer,
   })
 
   const isNextDist = nextDistPath.test(filename)