From e6cfeb915e642fdabdc3bcf4e880f180ec22c83f Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Fri, 10 Nov 2017 11:39:10 +0800
Subject: [PATCH] fix double semi-colons from `beautify` in `export`

---
 lib/output.js           |  1 +
 test/compress/export.js | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/lib/output.js b/lib/output.js
index 9082fbcd..f2386a97 100644
--- a/lib/output.js
+++ b/lib/output.js
@@ -1361,6 +1361,7 @@ function OutputStream(options) {
             self.exported_value.print(output);
         } else if (self.exported_definition) {
             self.exported_definition.print(output);
+            if (self.exported_definition instanceof AST_Definitions) return;
         }
         if (self.module_name) {
             output.space();
diff --git a/test/compress/export.js b/test/compress/export.js
index 6b5c7478..1032b73e 100644
--- a/test/compress/export.js
+++ b/test/compress/export.js
@@ -250,3 +250,13 @@ dynamic_import: {
         r.foo();
     }
 }
+
+trailing_comma: {
+    beautify = {
+        beautify: true,
+    }
+    input: {
+        export const a = 1;
+    }
+    expect_exact: "export const a = 1;"
+}