Fix standalone build

babel · Nov 5, 2022 · 6b1814b · 6b1814b
1 parent 5a9e9bd
commit 6b1814b
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Showing 2 changed files with 12 additions and 6 deletions.
diff --git a/babel.config.js b/babel.config.js
@@ -231,6 +231,11 @@ module.exports = function (api) {
             { name: "USE_ESM", value: outputType === "module" },
             "flag-USE_ESM",
           ],
+          [
+            pluginToggleBooleanFlag,
+            { name: "IS_STANDALONE", value: env === "standalone" },
+            "flag-IS_STANDALONE",
+          ],
 
           process.env.STRIP_BABEL_8_FLAG && [
             pluginToggleBooleanFlag,

diff --git a/packages/babel-core/src/index.ts b/packages/babel-core/src/index.ts
@@ -1,5 +1,5 @@
 declare const PACKAGE_JSON: { name: string; version: string };
-declare const USE_ESM: boolean;
+declare const USE_ESM: boolean, IS_STANDALONE: boolean;
 
 export const version = PACKAGE_JSON.version;
 
@@ -89,11 +89,12 @@ export function Plugin(alias: string) {
   );
 }
 
-import * as module from "module";
+import Module from "module";
 import * as thisFile from "./index";
 if (USE_ESM) {
-  // Pass this module to the CJS proxy, so that it
-  // can be synchronously accessed.
-  const cjsProxy = module.createRequire(import.meta.url)("../cjs-proxy.cjs");
-  cjsProxy["__ initialize @babel/core cjs proxy __"] = thisFile;
+  if (!IS_STANDALONE) {
+    // Pass this module to the CJS proxy, so that it can be synchronously accessed.
+    const cjsProxy = Module.createRequire(import.meta.url)("../cjs-proxy.cjs");
+    cjsProxy["__ initialize @babel/core cjs proxy __"] = thisFile;
+  }
 }