From da4e601745103b9ec6d219ac0061134edba9d429 Mon Sep 17 00:00:00 2001
From: Jordan Kiesel <jordantkiesel@gmail.com>
Date: Tue, 14 Oct 2025 23:16:41 -0600
Subject: [PATCH] fix: remove extra indent from ternary/lambda expressions in
 parentheses

---
 packages/prettier-plugin-java/src/printers/expressions.ts  | 7 ++++++-
 .../unit-test/conditional-expression/spaces/_input.java    | 4 ++++
 .../unit-test/conditional-expression/spaces/_output.java   | 6 ++++++
 .../test/unit-test/conditional-expression/tabs/_input.java | 4 ++++
 .../unit-test/conditional-expression/tabs/_output.java     | 6 ++++++
 .../prettier-plugin-java/test/unit-test/lambda/_input.java | 4 ++++
 .../test/unit-test/lambda/_output.java                     | 5 +++++
 7 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/packages/prettier-plugin-java/src/printers/expressions.ts b/packages/prettier-plugin-java/src/printers/expressions.ts
index 341f504b..b14c1eb0 100644
--- a/packages/prettier-plugin-java/src/printers/expressions.ts
+++ b/packages/prettier-plugin-java/src/printers/expressions.ts
@@ -374,13 +374,18 @@ export default {
     const expression = call(path, print, "expression");
     const ancestorName = (path.getNode(14) as JavaNonTerminal | null)?.name;
     const binaryExpression = path.getNode(8) as JavaNonTerminal | null;
+    const { conditionalExpression, lambdaExpression } =
+      path.node.children.expression[0].children;
+    const hasLambda = lambdaExpression !== undefined;
+    const hasTernary =
+      conditionalExpression?.[0].children.QuestionMark !== undefined;
     return ancestorName &&
       ["guard", "returnStatement"].includes(ancestorName) &&
       binaryExpression &&
       binaryExpression.name === "binaryExpression" &&
       Object.keys(binaryExpression.children).length === 1
       ? indentInParentheses(expression)
-      : ["(", indent(expression), ")"];
+      : ["(", hasLambda || hasTernary ? expression : indent(expression), ")"];
   },
 
   castExpression: printSingle,
diff --git a/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_input.java b/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_input.java
index cb46abda..3c9f5ab5 100644
--- a/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_input.java
+++ b/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_input.java
@@ -38,4 +38,8 @@ void ternaryWithComments() {
             ? b // b
             : c; // c
     }
+
+    void ternaryInParentheses() {
+        (aaaaaaaaaa ? bbbbbbbbbb : cccccccccc.dddddddddd().eeeeeeeeee().ffffffffff());
+    }
 }
diff --git a/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_output.java b/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_output.java
index 237586b7..4c8fdd27 100644
--- a/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_output.java
+++ b/packages/prettier-plugin-java/test/unit-test/conditional-expression/spaces/_output.java
@@ -53,4 +53,10 @@ void ternaryWithComments() {
             ? b // b
             : c; // c
     }
+
+    void ternaryInParentheses() {
+        (aaaaaaaaaa
+            ? bbbbbbbbbb
+            : cccccccccc.dddddddddd().eeeeeeeeee().ffffffffff());
+    }
 }
diff --git a/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_input.java b/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_input.java
index 7bab26b2..bedcb29f 100644
--- a/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_input.java
+++ b/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_input.java
@@ -38,4 +38,8 @@ void ternaryWithComments() {
 			? b // b
 			: c; // c
 	}
+
+	void ternaryInParentheses() {
+		(aaaaaaaaaa ? bbbbbbbbbb : cccccccccc.dddddddddd().eeeeeeeeee().ffffffffff());
+	}
 }
diff --git a/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_output.java b/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_output.java
index 147b9578..19697faa 100644
--- a/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_output.java
+++ b/packages/prettier-plugin-java/test/unit-test/conditional-expression/tabs/_output.java
@@ -52,4 +52,10 @@ void ternaryWithComments() {
 			? b // b
 			: c; // c
 	}
+
+	void ternaryInParentheses() {
+		(aaaaaaaaaa
+			? bbbbbbbbbb
+			: cccccccccc.dddddddddd().eeeeeeeeee().ffffffffff());
+	}
 }
diff --git a/packages/prettier-plugin-java/test/unit-test/lambda/_input.java b/packages/prettier-plugin-java/test/unit-test/lambda/_input.java
index b5751e3d..e00ad9a0 100644
--- a/packages/prettier-plugin-java/test/unit-test/lambda/_input.java
+++ b/packages/prettier-plugin-java/test/unit-test/lambda/_input.java
@@ -333,6 +333,10 @@ void lambdaWithTrailingComments() {
             ).collect(Collectors.summingInt(v -> v))
         );
     }
+
+    void lambdaInParentheses() {
+        (aaaaaaaaaa -> bbbbbbbbbb.cccccccccc().dddddddddd().eeeeeeeeee().ffffffffff());
+    }
 }
 
 class T {
diff --git a/packages/prettier-plugin-java/test/unit-test/lambda/_output.java b/packages/prettier-plugin-java/test/unit-test/lambda/_output.java
index 523bd8fe..a1c54630 100644
--- a/packages/prettier-plugin-java/test/unit-test/lambda/_output.java
+++ b/packages/prettier-plugin-java/test/unit-test/lambda/_output.java
@@ -576,6 +576,11 @@ void lambdaWithTrailingComments() {
         .collect(Collectors.summingInt(v -> v))
     );
   }
+
+  void lambdaInParentheses() {
+    (aaaaaaaaaa ->
+      bbbbbbbbbb.cccccccccc().dddddddddd().eeeeeeeeee().ffffffffff());
+  }
 }
 
 class T {