Revert "Enable externalHelpers when pre compiling Next.js' code (#3…

…7164)"

This reverts commit 4671010.

package.json

@@ -67,7 +67,7 @@
     "@next/swc": "workspace:*",
     "@svgr/webpack": "5.5.0",
     "@swc/cli": "0.1.55",
-    "@swc/core": "1.2.203",
+    "@swc/core": "1.2.148",
     "@swc/helpers": "0.3.17",
     "@testing-library/react": "13.0.0",
     "@types/cheerio": "0.22.16",

packages/next/taskfile-swc.js

@@ -25,15 +25,14 @@ module.exports = function (task) {
 
       const isClient = serverOrClient === 'client'
 
-      /** @type {import('@swc/core').Options} */
       const swcClientOptions = {
         module: {
           type: 'commonjs',
           ignoreDynamic: true,
         },
         jsc: {
           loose: true,
-          externalHelpers: true,
+
           target: 'es2016',
           parser: {
             syntax: 'typescript',
@@ -56,7 +55,6 @@ module.exports = function (task) {
         },
       }
 
-      /** @type {import('@swc/core').Options} */
       const swcServerOptions = {
         module: {
           type: 'commonjs',
@@ -69,9 +67,7 @@ module.exports = function (task) {
         },
         jsc: {
           loose: true,
-          // Do not enable externalHelpers for server-side code
-          // "_is_native_function.mjs" helper is not compatible with edge runtime
-          externalHelpers: false,
+
           parser: {
             syntax: 'typescript',
             dynamicImport: true,

packages/next/taskfile.js

@@ -1956,7 +1956,7 @@ export async function shared(task, opts) {
     .source(
       opts.src || 'shared/**/!(amp|config|constants|dynamic|head).+(js|ts|tsx)'
     )
-    .swc('client', { dev: opts.dev })
+    .swc('server', { dev: opts.dev })
     .target('dist/shared')
   notify('Compiled shared files')
 }
@@ -1966,7 +1966,7 @@ export async function shared_re_exported(task, opts) {
     .source(
       opts.src || 'shared/**/{amp,config,constants,dynamic,head}.+(js|ts|tsx)'
     )
-    .swc('client', { dev: opts.dev, interopClientDefaultExport: true })
+    .swc('server', { dev: opts.dev, interopClientDefaultExport: true })
     .target('dist/shared')
   notify('Compiled shared re-exported files')
 }