From 63bac692b49549f4af3125080d5bffa1e167ab56 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hu=C3=A1ng=20J=C3=B9nli=C3=A0ng?= <jlhwung@gmail.com>
Date: Fri, 26 Mar 2021 14:08:51 -0400
Subject: [PATCH] address review comments

---
 packages/babel-parser/src/plugin-utils.js                    | 5 ++++-
 .../test/fixtures/async-do-expressions/basic/output.js       | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/babel-parser/src/plugin-utils.js b/packages/babel-parser/src/plugin-utils.js
index 65520226dabb..194bc1aa7465 100644
--- a/packages/babel-parser/src/plugin-utils.js
+++ b/packages/babel-parser/src/plugin-utils.js
@@ -122,9 +122,12 @@ export function validatePlugins(plugins: PluginList) {
     hasPlugin(plugins, "asyncDoExpressions") &&
     !hasPlugin(plugins, "doExpressions")
   ) {
-    throw new Error(
+    const error = new Error(
       "'asyncDoExpressions' requires 'doExpressions', please add 'doExpressions' to parser plugins.",
     );
+    // $FlowIgnore
+    error.missingPlugins = "doExpressions"; // so @babel/core can provide better error message
+    throw error;
   }
 }
 
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/async-do-expressions/basic/output.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/async-do-expressions/basic/output.js
index 22fca666fa11..00ef26d6cb6b 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/async-do-expressions/basic/output.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/async-do-expressions/basic/output.js
@@ -1 +1 @@
-(async do {});
+async do {};