From bc87a950bb01eab7ba2e77e80914e7f4ba63f014 Mon Sep 17 00:00:00 2001
From: Brian Donovan <1938+eventualbuddha@users.noreply.github.com>
Date: Sun, 3 Mar 2024 11:46:01 -0800
Subject: [PATCH] fix: print export namespace specifiers without braces

Fixes #1390
---
 lib/printer.ts  | 10 ++++++++--
 test/printer.ts | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/lib/printer.ts b/lib/printer.ts
index 807e0765..5b3f9618 100644
--- a/lib/printer.ts
+++ b/lib/printer.ts
@@ -3005,13 +3005,19 @@ function printExportDeclaration(path: any, options: any, print: any) {
       parts.push("*");
     } else if (decl.specifiers.length === 0) {
       parts.push("{}");
-    } else if (decl.specifiers[0].type === "ExportDefaultSpecifier") {
+    } else if (
+      decl.specifiers[0].type === "ExportDefaultSpecifier" ||
+      decl.specifiers[0].type === "ExportNamespaceSpecifier"
+    ) {
       const unbracedSpecifiers: any[] = [];
       const bracedSpecifiers: any[] = [];
 
       path.each(function (specifierPath: any) {
         const spec = specifierPath.getValue();
-        if (spec.type === "ExportDefaultSpecifier") {
+        if (
+          spec.type === "ExportDefaultSpecifier" ||
+          spec.type === "ExportNamespaceSpecifier"
+        ) {
           unbracedSpecifiers.push(print(specifierPath));
         } else {
           bracedSpecifiers.push(print(specifierPath));
diff --git a/test/printer.ts b/test/printer.ts
index 0a5705c9..e25a961d 100644
--- a/test/printer.ts
+++ b/test/printer.ts
@@ -508,6 +508,56 @@ describe("printer", function () {
     assert.strictEqual(printer.printGenerically(ast).code, code);
   });
 
+  it("export namespace", function () {
+    const printer = new Printer();
+
+    assert.strictEqual(
+      printer.print({
+        type: "ExportNamedDeclaration",
+        exportKind: "value",
+        specifiers: [
+          {
+            type: "ExportNamespaceSpecifier",
+            exported: {
+              type: "Identifier",
+              name: "Foobar",
+            },
+          },
+        ],
+        source: {
+          type: "StringLiteral",
+          value: "./foo",
+        },
+      }).code,
+      `export * as Foobar from "./foo";`,
+    );
+  });
+
+  it("export type namespace", function () {
+    const printer = new Printer();
+
+    assert.strictEqual(
+      printer.print({
+        type: "ExportNamedDeclaration",
+        exportKind: "type",
+        specifiers: [
+          {
+            type: "ExportNamespaceSpecifier",
+            exported: {
+              type: "Identifier",
+              name: "Foobar",
+            },
+          },
+        ],
+        source: {
+          type: "StringLiteral",
+          value: "./foo",
+        },
+      }).code,
+      `export type * as Foobar from "./foo";`,
+    );
+  });
+
   it("export default of IIFE", function () {
     const printer = new Printer();
     let ast = b.exportDefaultDeclaration(