From e76e7461314b49dce3880484e749cfc1727d583e Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Wed, 10 Jun 2026 06:10:50 +0800
Subject: [PATCH] Remove extra parens around jsx (#19329)

---
 .../parentheses/needs-parentheses.js          |  5 ++-
 .../__snapshots__/format.test.js.snap         |  2 +-
 .../__snapshots__/format.test.js.snap         | 24 +++++++++++++
 tests/format/jsx/parentheses/format.test.js   | 36 +++++++++++--------
 4 files changed, 50 insertions(+), 17 deletions(-)

diff --git a/src/language-js/parentheses/needs-parentheses.js b/src/language-js/parentheses/needs-parentheses.js
index ba4380214..b81000a15 100644
--- a/src/language-js/parentheses/needs-parentheses.js
+++ b/src/language-js/parentheses/needs-parentheses.js
@@ -868,7 +868,10 @@ function needsParentheses(path, options) {
           parent.type !== "TypeCastExpression" &&
           parent.type !== "VariableDeclarator" &&
           parent.type !== "YieldExpression" &&
-          parent.type !== "MatchExpressionCase")
+          parent.type !== "MatchExpressionCase" &&
+          !(
+            key === "declaration" && parent.type === "ExportDefaultDeclaration"
+          ))
       );
 
     case "TSInstantiationExpression":
diff --git a/tests/format/js/export-default/parentheses/__snapshots__/format.test.js.snap b/tests/format/js/export-default/parentheses/__snapshots__/format.test.js.snap
index 9ecc857a0..59a560d59 100644
--- a/tests/format/js/export-default/parentheses/__snapshots__/format.test.js.snap
+++ b/tests/format/js/export-default/parentheses/__snapshots__/format.test.js.snap
@@ -511,7 +511,7 @@ parsers: ["babel", "flow", "typescript"]
 =====================================input======================================
 export default (<a></a>);
 =====================================output=====================================
-export default (<a></a>);
+export default <a></a>;
 
 ================================================================================
 `;
diff --git a/tests/format/jsx/parentheses/__snapshots__/format.test.js.snap b/tests/format/jsx/parentheses/__snapshots__/format.test.js.snap
index 5c182f616..23d1c30de 100644
--- a/tests/format/jsx/parentheses/__snapshots__/format.test.js.snap
+++ b/tests/format/jsx/parentheses/__snapshots__/format.test.js.snap
@@ -56,3 +56,27 @@ A(
 
 ================================================================================
 `;
+
+exports[`snippet: #0 format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts", "__babel_estree", "typescript", "flow", "meriyah", "acorn", "espree", "espree", "hermes", "oxc", "oxc-ts"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+export default <></>
+=====================================output=====================================
+export default <></>;
+
+================================================================================
+`;
+
+exports[`snippet: #1 format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-flow", "babel-ts", "__babel_estree", "typescript", "flow", "meriyah", "acorn", "espree", "espree", "hermes", "oxc", "oxc-ts"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+export default <div/>
+=====================================output=====================================
+export default <div />;
+
+================================================================================
+`;
diff --git a/tests/format/jsx/parentheses/format.test.js b/tests/format/jsx/parentheses/format.test.js
index a6dfd8599..ebef618a7 100644
--- a/tests/format/jsx/parentheses/format.test.js
+++ b/tests/format/jsx/parentheses/format.test.js
@@ -1,15 +1,21 @@
-runFormatTest(import.meta, [
-  "babel",
-  "babel-flow",
-  "babel-ts",
-  "__babel_estree",
-  "typescript",
-  "flow",
-  "meriyah",
-  "acorn",
-  "espree",
-  "espree",
-  "hermes",
-  "oxc",
-  "oxc-ts",
-]);
+runFormatTest(
+  {
+    importMeta: import.meta,
+    snippets: ["export default <></>", "export default <div/>"],
+  },
+  [
+    "babel",
+    "babel-flow",
+    "babel-ts",
+    "__babel_estree",
+    "typescript",
+    "flow",
+    "meriyah",
+    "acorn",
+    "espree",
+    "espree",
+    "hermes",
+    "oxc",
+    "oxc-ts",
+  ],
+);