From 3bcf3b0a24fe7d6b1c38ff1c552ba160e6721018 Mon Sep 17 00:00:00 2001
From: liuxingbaoyu <30521560+liuxingbaoyu@users.noreply.github.com>
Date: Wed, 12 Oct 2022 10:21:01 +0800
Subject: [PATCH] review

---
 packages/babel-generator/src/printer.ts           | 15 +++++++++++++--
 .../fixtures/flow-comments/type-cast/output.js    |  4 +---
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/packages/babel-generator/src/printer.ts b/packages/babel-generator/src/printer.ts
index f55ec31cfb93..614390e9878a 100644
--- a/packages/babel-generator/src/printer.ts
+++ b/packages/babel-generator/src/printer.ts
@@ -2,7 +2,13 @@ import Buffer from "./buffer";
 import type { Loc } from "./buffer";
 import * as n from "./node";
 import type * as t from "@babel/types";
-import { isProperty, isFunction, isStatement, isLVal } from "@babel/types";
+import {
+  isProperty,
+  isFunction,
+  isStatement,
+  isClassBody,
+  isTSInterfaceBody,
+} from "@babel/types";
 import type {
   RecordAndTuplePluginOptions,
   PipelineOperatorPluginOptions,
@@ -1020,7 +1026,12 @@ class Printer {
                   ? COMMENT_SKIP_NEWLINE.SKIP_ALL
                   : COMMENT_SKIP_NEWLINE.DEFAULT,
               );
-            } else if (type === COMMENT_TYPE.TRAILING && isLVal(node)) {
+            } else if (
+              type === COMMENT_TYPE.TRAILING &&
+              !isStatement(node) &&
+              !isClassBody(parent) &&
+              !isTSInterfaceBody(parent)
+            ) {
               this._printComment(comment, COMMENT_SKIP_NEWLINE.SKIP_ALL);
             } else {
               this._printComment(comment, COMMENT_SKIP_NEWLINE.DEFAULT);
diff --git a/packages/babel-plugin-transform-flow-comments/test/fixtures/flow-comments/type-cast/output.js b/packages/babel-plugin-transform-flow-comments/test/fixtures/flow-comments/type-cast/output.js
index adfbff51872f..1b2c5f2b1fca 100644
--- a/packages/babel-plugin-transform-flow-comments/test/fixtures/flow-comments/type-cast/output.js
+++ b/packages/babel-plugin-transform-flow-comments/test/fixtures/flow-comments/type-cast/output.js
@@ -1,4 +1,2 @@
 var a = (y /*: any*/);
-var a = ((y /*: foo*/)
-/*: any*/
-);
+var a = ((y /*: foo*/) /*: any*/);