From 6f16a8f60b1ad8d6a564a53bc162b3a4298b0401 Mon Sep 17 00:00:00 2001
From: Dunqing <29533304+Dunqing@users.noreply.github.com>
Date: Thu, 4 Dec 2025 07:31:01 +0000
Subject: [PATCH] perf(formatter): avoid using an indent with a empty content
 (#16474)

Slight improvement; this can avoid inserting useless `FormatElement::Tag(StartIndent)` and `FormatElement::Tag(StartIndent)`.
---
 .../src/write/binary_like_expression.rs              |  4 ++--
 crates/oxc_formatter/src/write/jsx/mod.rs            | 12 ++++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/crates/oxc_formatter/src/write/binary_like_expression.rs b/crates/oxc_formatter/src/write/binary_like_expression.rs
index 63c218123069a..ceb4ae2fdc0c6 100644
--- a/crates/oxc_formatter/src/write/binary_like_expression.rs
+++ b/crates/oxc_formatter/src/write/binary_like_expression.rs
@@ -272,9 +272,9 @@ impl<'a> Format<'a> for BinaryLikeExpression<'a, '_> {
                 f,
                 [group(&format_args!(
                     first,
-                    indent(&format_with(|f| {
+                    (!tail_parts.is_empty()).then_some(indent(&format_with(|f| {
                         f.join().entries(tail_parts.iter());
-                    }))
+                    })))
                 ))
                 .with_group_id(Some(group_id))]
             );
diff --git a/crates/oxc_formatter/src/write/jsx/mod.rs b/crates/oxc_formatter/src/write/jsx/mod.rs
index de18315c76e9d..31fadea8aec0d 100644
--- a/crates/oxc_formatter/src/write/jsx/mod.rs
+++ b/crates/oxc_formatter/src/write/jsx/mod.rs
@@ -73,6 +73,12 @@ impl<'a> FormatWrite<'a> for AstNode<'a, JSXFragment<'a>> {
 impl<'a> FormatWrite<'a> for AstNode<'a, JSXOpeningFragment> {
     fn write(&self, f: &mut Formatter<'_, 'a>) {
         let comments = f.context().comments().comments_before(self.span.end);
+
+        if comments.is_empty() {
+            write!(f, "<>");
+            return;
+        }
+
         let has_own_line_comment = comments.iter().any(|c| c.is_line());
 
         let format_comments = format_with(|f| {
@@ -96,6 +102,12 @@ impl<'a> FormatWrite<'a> for AstNode<'a, JSXOpeningFragment> {
 impl<'a> FormatWrite<'a> for AstNode<'a, JSXClosingFragment> {
     fn write(&self, f: &mut Formatter<'_, 'a>) {
         let comments = f.context().comments().comments_before(self.span.end);
+
+        if comments.is_empty() {
+            write!(f, "</>");
+            return;
+        }
+
         let has_own_line_comment = comments.iter().any(|c| c.is_line());
 
         let format_comments = format_with(|f| {