From a6b6ef8ee3d9f4877e1653950e05080b0794d79e Mon Sep 17 00:00:00 2001
From: Dunqing <29533304+Dunqing@users.noreply.github.com>
Date: Thu, 30 Oct 2025 00:36:48 +0000
Subject: [PATCH] fix(formatter): correct calculating layout for
 `TSNonNullExpression` in `StaticMemberExpression` (#15065)

---
 .../oxc_formatter/src/write/member_expression.rs   |  1 +
 .../ts/static-members/non-null-expression.ts       |  3 +++
 .../ts/static-members/non-null-expression.ts.snap  | 14 ++++++++++++++
 3 files changed, 18 insertions(+)
 create mode 100644 crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts
 create mode 100644 crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts.snap

diff --git a/crates/oxc_formatter/src/write/member_expression.rs b/crates/oxc_formatter/src/write/member_expression.rs
index b1f87cae15f2e..ff0b3b8617b6f 100644
--- a/crates/oxc_formatter/src/write/member_expression.rs
+++ b/crates/oxc_formatter/src/write/member_expression.rs
@@ -144,6 +144,7 @@ fn layout<'a>(
         AstNodes::StaticMemberExpression(_)
             | AstNodes::ComputedMemberExpression(_)
             | AstNodes::ChainExpression(_)
+            | AstNodes::TSNonNullExpression(_)
     ) {
         first_non_static_member_ancestor = first_non_static_member_ancestor.parent();
     }
diff --git a/crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts b/crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts
new file mode 100644
index 0000000000000..53c217c23acd1
--- /dev/null
+++ b/crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts
@@ -0,0 +1,3 @@
+(<IJSONSchema>(
+  compoundConfigurationsSchema.items
+)).oneOf![1].properties!.folder.enum = folderNames;
diff --git a/crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts.snap b/crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts.snap
new file mode 100644
index 0000000000000..7d8941f977e57
--- /dev/null
+++ b/crates/oxc_formatter/tests/fixtures/ts/static-members/non-null-expression.ts.snap
@@ -0,0 +1,14 @@
+---
+source: crates/oxc_formatter/tests/fixtures/mod.rs
+---
+==================== Input ====================
+(<IJSONSchema>(
+  compoundConfigurationsSchema.items
+)).oneOf![1].properties!.folder.enum = folderNames;
+
+==================== Output ====================
+(<IJSONSchema>(
+  compoundConfigurationsSchema.items
+)).oneOf![1].properties!.folder.enum = folderNames;
+
+===================== End =====================