From 82513465ee6b8c7fc010909bdce41f36c17dfb9e Mon Sep 17 00:00:00 2001
From: Logan Smyth <loganfsmyth@gmail.com>
Date: Mon, 6 Nov 2017 17:55:34 -0800
Subject: [PATCH] Pass an explicit whitelist of options down into
 babel-generator.

---
 .../src/transformation/file/generate.js       | 21 ++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/packages/babel-core/src/transformation/file/generate.js b/packages/babel-core/src/transformation/file/generate.js
index bb42de3d19..39327d75dc 100644
--- a/packages/babel-core/src/transformation/file/generate.js
+++ b/packages/babel-core/src/transformation/file/generate.js
@@ -21,7 +21,26 @@ export default function generateCode(
 
   let { code: outputCode, map: outputMap } = gen(
     ast,
-    opts.generatorOpts ? Object.assign(opts, opts.generatorOpts) : opts,
+    Object.assign(
+      {
+        // General generator flags.
+        filename: opts.filename,
+        auxiliaryCommentBefore: opts.auxiliaryCommentBefore,
+        auxiliaryCommentAfter: opts.auxiliaryCommentAfter,
+        retainLines: opts.retainLines,
+        comments: opts.comments,
+        compact: opts.compact,
+        minified: opts.minified,
+        concise: opts.concise,
+
+        // Source-map generation flags.
+        sourceMaps: opts.sourceMaps,
+        sourceMapTarget: opts.sourceMapTarget,
+        sourceRoot: opts.sourceRoot,
+        sourceFileName: opts.sourceFileName,
+      },
+      opts.generatorOpts,
+    ),
     code,
   );