fix

babel · Jan 3, 2023 · a4e0d98 · a4e0d98
1 parent e395515
commit a4e0d98
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Showing 2 changed files with 26 additions and 16 deletions.
diff --git a/packages/babel-core/src/config/files/module-types.ts b/packages/babel-core/src/config/files/module-types.ts
@@ -71,13 +71,20 @@ function loadCtsDefault(filepath: string) {
       presets: [
         [
           "@babel/preset-typescript",
-          {
-            allowDeclareFields: true,
-            disallowAmbiguousJSXLike: true,
-            allExtensions: true,
-            onlyRemoveTypeImports: true,
-            optimizeConstEnums: true,
-          },
+          process.env.BABEL_8_BREAKING
+            ? {
+                disallowAmbiguousJSXLike: true,
+                allExtensions: true,
+                onlyRemoveTypeImports: true,
+                optimizeConstEnums: true,
+              }
+            : {
+                allowDeclareFields: true,
+                disallowAmbiguousJSXLike: true,
+                allExtensions: true,
+                onlyRemoveTypeImports: true,
+                optimizeConstEnums: true,
+              },
         ],
       ],
     };

diff --git a/packages/babel-core/test/config-ts.js b/packages/babel-core/test/config-ts.js
@@ -3,25 +3,28 @@ import path from "path";
 import { fileURLToPath } from "url";
 import { createRequire } from "module";
 import { register } from "ts-node";
+import semver from "semver";
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const require = createRequire(import.meta.url);
 
 describe("@babel/core config with ts", () => {
-  it("should work with simple .cts", () => {
-    const config = loadPartialConfigSync({
-      configFile: path.join(
-        __dirname,
-        "fixtures/config-ts/simple-cts/babel.config.cts",
-      ),
-    });
+  semver.gte(process.version, "12.0.0")
+    ? it
+    : it.skip("should work with simple .cts", () => {
+        const config = loadPartialConfigSync({
+          configFile: path.join(
+            __dirname,
+            "fixtures/config-ts/simple-cts/babel.config.cts",
+          ),
+        });
 
-    expect(config.options.targets).toMatchInlineSnapshot(`
+        expect(config.options.targets).toMatchInlineSnapshot(`
       Object {
         "node": "12.0.0",
       }
     `);
-  });
+      });
 
   it("should throw with invalid .ts register", () => {
     require.extensions[".ts"] = () => {