From 88ffdc5fec9d2f99e891fc6a282c940f08428cfb Mon Sep 17 00:00:00 2001
From: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Date: Fri, 13 Jan 2023 12:48:10 -0800
Subject: [TypeScript transpiler] Fix bug with `export default class
 implements`

---
 test/bun.js/transpiler.test.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'test/bun.js/transpiler.test.js')

diff --git a/test/bun.js/transpiler.test.js b/test/bun.js/transpiler.test.js
index 94c3d52d2..05607091a 100644
--- a/test/bun.js/transpiler.test.js
+++ b/test/bun.js/transpiler.test.js
@@ -106,6 +106,31 @@ describe("Bun.Transpiler", () => {
       ts.expectPrinted_("export = {foo: 123}", "module.exports = { foo: 123 }");
     });
 
+    it("export default class implements TypeScript regression", () => {
+      expect(
+        transpiler
+          .transformSync(
+            `
+      export default class implements ITest {
+        async* runTest(path: string): AsyncGenerator<number> {
+          yield Math.random();
+        }
+      }
+      `,
+            "ts",
+          )
+          .trim(),
+      ).toBe(
+        `
+export default class {
+  async* runTest(path) {
+    yield Math.random();
+  }
+}
+      `.trim(),
+      );
+    });
+
     it("satisfies", () => {
       ts.expectPrinted_(
         "const t1 = { a: 1 } satisfies I1;",
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