From 96f7a375bd0a75d93671bb1af412c757bd4edf7b Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Fri, 5 Jun 2026 17:16:35 +0800
Subject: [PATCH] Fix edge cases for parentheses in new expressions (#19295)

---
 .../parentheses/needs-parentheses.js          |  2 ++
 .../__snapshots__/format.test.js.snap         | 16 ++++++++++++++++
 .../format/js/bind-expressions/bind_parens.js |  4 ++++
 .../__snapshots__/format.test.js.snap         | 19 ++++++++++++++++++-
 .../{new_expression.js => new-expression.js}  |  0
 tests/format/js/new-expression/parentheses.js |  3 +++
 .../new/__snapshots__/format.test.js.snap     | 17 +++++++++++++++++
 tests/format/typescript/new/parentheses.ts    |  3 +++
 8 files changed, 63 insertions(+), 1 deletion(-)
 rename tests/format/js/new-expression/{new_expression.js => new-expression.js} (100%)
 create mode 100644 tests/format/js/new-expression/parentheses.js
 create mode 100644 tests/format/typescript/new/parentheses.ts

diff --git a/src/language-js/parentheses/needs-parentheses.js b/src/language-js/parentheses/needs-parentheses.js
index 971fc6f5b..ba4380214 100644
--- a/src/language-js/parentheses/needs-parentheses.js
+++ b/src/language-js/parentheses/needs-parentheses.js
@@ -787,6 +787,7 @@ function needsParentheses(path, options) {
     case "CallExpression":
     case "MemberExpression":
     case "TaggedTemplateExpression":
+    case "ImportExpression":
       if (
         key === "callee" &&
         (parent.type === "BindExpression" || parent.type === "NewExpression")
@@ -795,6 +796,7 @@ function needsParentheses(path, options) {
         while (object) {
           switch (object.type) {
             case "CallExpression":
+            case "ImportExpression":
               return true;
             case "MemberExpression":
             case "OptionalMemberExpression":
diff --git a/tests/format/js/bind-expressions/__snapshots__/format.test.js.snap b/tests/format/js/bind-expressions/__snapshots__/format.test.js.snap
index e7480b4db..2ab81eaed 100644
--- a/tests/format/js/bind-expressions/__snapshots__/format.test.js.snap
+++ b/tests/format/js/bind-expressions/__snapshots__/format.test.js.snap
@@ -166,6 +166,10 @@ new f(a::b);
 f[a::b];
 f[a::b()];
 
+a::(import("foo"));
+a::(import("foo").bar);
+a::(import("foo")\`bar\`);
+
 =====================================output=====================================
 ;(a || b)::c
 a || b::c
@@ -202,6 +206,10 @@ new f(a::b)
 f[a::b]
 f[a::b()]
 
+a::(import("foo"))
+a::(import("foo").bar)
+a::(import("foo")\`bar\`)
+
 ================================================================================
 `;
 
@@ -284,6 +292,10 @@ new f(a::b);
 f[a::b];
 f[a::b()];
 
+a::(import("foo"));
+a::(import("foo").bar);
+a::(import("foo")\`bar\`);
+
 =====================================output=====================================
 (a || b)::c;
 a || b::c;
@@ -320,6 +332,10 @@ new f(a::b);
 f[a::b];
 f[a::b()];
 
+a::(import("foo"));
+a::(import("foo").bar);
+a::(import("foo")\`bar\`);
+
 ================================================================================
 `;
 
diff --git a/tests/format/js/bind-expressions/bind_parens.js b/tests/format/js/bind-expressions/bind_parens.js
index 72f13543e..fa3a865bf 100644
--- a/tests/format/js/bind-expressions/bind_parens.js
+++ b/tests/format/js/bind-expressions/bind_parens.js
@@ -32,3 +32,7 @@ new (a::b)();
 new f(a::b);
 f[a::b];
 f[a::b()];
+
+a::(import("foo"));
+a::(import("foo").bar);
+a::(import("foo")`bar`);
diff --git a/tests/format/js/new-expression/__snapshots__/format.test.js.snap b/tests/format/js/new-expression/__snapshots__/format.test.js.snap
index 0fdeec86d..72ac5f64f 100644
--- a/tests/format/js/new-expression/__snapshots__/format.test.js.snap
+++ b/tests/format/js/new-expression/__snapshots__/format.test.js.snap
@@ -19,7 +19,7 @@ new (factory())(factory());
 ================================================================================
 `;
 
-exports[`new_expression.js format 1`] = `
+exports[`new-expression.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
                                                       printWidth: 80 (default) |
@@ -48,6 +48,23 @@ new (a\`\`())();
 ================================================================================
 `;
 
+exports[`parentheses.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "flow", "typescript"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+new (import("foo"))();
+new (import("foo").bar)();
+new (import("foo")\`bar\`)();
+
+=====================================output=====================================
+new (import("foo"))();
+new (import("foo").bar)();
+new (import("foo")\`bar\`)();
+
+================================================================================
+`;
+
 exports[`with-member-expression.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
diff --git a/tests/format/js/new-expression/new_expression.js b/tests/format/js/new-expression/new-expression.js
similarity index 100%
rename from tests/format/js/new-expression/new_expression.js
rename to tests/format/js/new-expression/new-expression.js
diff --git a/tests/format/js/new-expression/parentheses.js b/tests/format/js/new-expression/parentheses.js
new file mode 100644
index 000000000..c4de102c5
--- /dev/null
+++ b/tests/format/js/new-expression/parentheses.js
@@ -0,0 +1,3 @@
+new (import("foo"))();
+new (import("foo").bar)();
+new (import("foo")`bar`)();
diff --git a/tests/format/typescript/new/__snapshots__/format.test.js.snap b/tests/format/typescript/new/__snapshots__/format.test.js.snap
index 148111ebc..f2187bcc3 100644
--- a/tests/format/typescript/new/__snapshots__/format.test.js.snap
+++ b/tests/format/typescript/new/__snapshots__/format.test.js.snap
@@ -140,6 +140,23 @@ interface TimerConstructor {
 ================================================================================
 `;
 
+exports[`parentheses.ts format 1`] = `
+====================================options=====================================
+parsers: ["typescript"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+new (import("foo")!)();
+new (import("foo")!.bar)();
+new (import("foo")!\`bar\`)();
+
+=====================================output=====================================
+new (import("foo")!)();
+new (import("foo")!.bar)();
+new (import("foo")!\`bar\`)();
+
+================================================================================
+`;
+
 exports[`with-member-expression.ts format 1`] = `
 ====================================options=====================================
 parsers: ["typescript"]
diff --git a/tests/format/typescript/new/parentheses.ts b/tests/format/typescript/new/parentheses.ts
new file mode 100644
index 000000000..037a4a829
--- /dev/null
+++ b/tests/format/typescript/new/parentheses.ts
@@ -0,0 +1,3 @@
+new (import("foo")!)();
+new (import("foo")!.bar)();
+new (import("foo")!`bar`)();