From 296fbe6b7fdd3cc5b829d0a144ea060a887dd3ec Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Thu, 4 Jun 2026 02:22:52 +0800
Subject: [PATCH] Improve `handleParenthesizedExpressionTrailingComment`
 (#19281)

---
 src/language-js/comments/handle-comments.js        |  4 +---
 .../__snapshots__/format.test.js.snap              | 14 ++++++++++++++
 .../parenthesized-trailing-comment.js              |  7 +++++++
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/src/language-js/comments/handle-comments.js b/src/language-js/comments/handle-comments.js
index c7fc2e80f..9eda655f3 100644
--- a/src/language-js/comments/handle-comments.js
+++ b/src/language-js/comments/handle-comments.js
@@ -1078,7 +1078,6 @@ function handleParenthesizedExpressionTrailingComment({
   enclosingNode,
   precedingNode,
   followingNode,
-  text,
 }) {
   if (!followingNode && enclosingNode) {
     if (
@@ -1102,8 +1101,7 @@ function handleParenthesizedExpressionTrailingComment({
           enclosingNode.argument === precedingNode) ||
         (isSequence &&
           enclosingNode.type === "AssignmentExpression" &&
-          enclosingNode.right === precedingNode)) &&
-      getNextNonSpaceNonCommentCharacter(text, locEnd(comment)) === ")"
+          enclosingNode.right === precedingNode))
     ) {
       addTrailingComment(
         isSequence ? precedingNode.expressions.at(-1) : precedingNode.right,
diff --git a/tests/format/js/sequence-expression/__snapshots__/format.test.js.snap b/tests/format/js/sequence-expression/__snapshots__/format.test.js.snap
index fbec30c5c..dc6ab13fb 100644
--- a/tests/format/js/sequence-expression/__snapshots__/format.test.js.snap
+++ b/tests/format/js/sequence-expression/__snapshots__/format.test.js.snap
@@ -133,15 +133,19 @@ parsers: ["babel", "flow", "typescript"]
                                                       printWidth: 80 (default) |
 =====================================input======================================
 const x1 = (a, b, c /* comment */);
+const x12 = (a, b, c) /* comment */;
 const x2 = (a = c /* comment */);
+const x22 = (a = c) /* comment */;
 
 (a, b, c /* comment */);
+(a, b, c) /* comment */;
 (a, b, c /* comment */
 );
 (a, b, c
 /* comment */
 );
 (a = c /* comment */);
+(a = c) /* comment */;
 (a = c /* comment */
 );
 (a = c
@@ -155,6 +159,7 @@ const x2 = (a = c /* comment */);
 );
 
 (foo() /* comment */);
+(foo()) /* comment */;
 (foo()
 /* comment */
 );
@@ -162,23 +167,29 @@ const x2 = (a = c /* comment */);
 );
 
 assigned = (a, b, c /* comment */);
+assigned = (a, b, c) /* comment */;
 // assigned = (a = c /* comment */);
 
 function f() {
   return (a, b, c /* comment */);
+  return (a, b, c) /* comment */;
   return (a = c /* comment */);
 }
 
 =====================================output=====================================
 const x1 = (a, b, c /* comment */);
+const x12 = (a, b, c); /* comment */
 const x2 = (a = c /* comment */);
+const x22 = (a = c); /* comment */
 
+(a, b, c); /* comment */
 (a, b, c); /* comment */
 (a, b, c); /* comment */
 (a, b, c);
 /* comment */
 a = c; /* comment */
 a = c; /* comment */
+a = c; /* comment */
 a = c;
 /* comment */
 ({ a } = c); /* comment */
@@ -186,16 +197,19 @@ a = c;
 /* comment */
 ({ a } = c); /* comment */
 
+foo(); /* comment */
 foo(); /* comment */
 foo();
 /* comment */
 foo(); /* comment */
 
 assigned = (a, b, c /* comment */);
+assigned = (a, b, c); /* comment */
 // assigned = (a = c /* comment */);
 
 function f() {
   return (a, b, c /* comment */);
+  return (a, b, c); /* comment */
   return (a = c /* comment */);
 }
 
diff --git a/tests/format/js/sequence-expression/parenthesized-trailing-comment.js b/tests/format/js/sequence-expression/parenthesized-trailing-comment.js
index 3db517fe7..0c441f2d2 100644
--- a/tests/format/js/sequence-expression/parenthesized-trailing-comment.js
+++ b/tests/format/js/sequence-expression/parenthesized-trailing-comment.js
@@ -1,13 +1,17 @@
 const x1 = (a, b, c /* comment */);
+const x12 = (a, b, c) /* comment */;
 const x2 = (a = c /* comment */);
+const x22 = (a = c) /* comment */;
 
 (a, b, c /* comment */);
+(a, b, c) /* comment */;
 (a, b, c /* comment */
 );
 (a, b, c
 /* comment */
 );
 (a = c /* comment */);
+(a = c) /* comment */;
 (a = c /* comment */
 );
 (a = c
@@ -21,6 +25,7 @@ const x2 = (a = c /* comment */);
 );
 
 (foo() /* comment */);
+(foo()) /* comment */;
 (foo()
 /* comment */
 );
@@ -28,9 +33,11 @@ const x2 = (a = c /* comment */);
 );
 
 assigned = (a, b, c /* comment */);
+assigned = (a, b, c) /* comment */;
 // assigned = (a = c /* comment */);
 
 function f() {
   return (a, b, c /* comment */);
+  return (a, b, c) /* comment */;
   return (a = c /* comment */);
 }