From d022b8b9596f1456ea485c32b49c425905010813 Mon Sep 17 00:00:00 2001
From: Ben Barham <ben_barham@apple.com>
Date: Thu, 13 Nov 2025 07:20:14 +1000
Subject: [PATCH] Remove added group around base type in `AttributedTypeSyntax`

Causes quite a few changes in eg. sourcekit-lsp, so presumably will in
other codebases as well. Ideally we'd add this behind some new
versioning in the config.

As an example of a change this causes:
```
private let logMessageToIndexLog:
  @Sendable (
    _ message: String, _ type: WindowMessageType, _ structure: LanguageServerProtocol.StructuredLogKind
  ) -> Void
```

To:
```
@Sendable
  (
    _ message: String, _ type: WindowMessageType, _ structure: LanguageServerProtocol.StructuredLogKind
  ) -> Void
```
---
 .../SwiftFormat/PrettyPrint/TokenStreamCreator.swift |  3 ---
 .../PrettyPrint/FunctionTypeTests.swift              | 12 ++++++------
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/Sources/SwiftFormat/PrettyPrint/TokenStreamCreator.swift b/Sources/SwiftFormat/PrettyPrint/TokenStreamCreator.swift
index 46a805a2..f56f50e6 100644
--- a/Sources/SwiftFormat/PrettyPrint/TokenStreamCreator.swift
+++ b/Sources/SwiftFormat/PrettyPrint/TokenStreamCreator.swift
@@ -2411,9 +2411,6 @@ private final class TokenStreamCreator: SyntaxVisitor {
       )
     }
 
-    before(node.baseType.firstToken(viewMode: .sourceAccurate), tokens: .open)
-    after(node.baseType.lastToken(viewMode: .sourceAccurate), tokens: .close)
-
     after(node.lastToken(viewMode: .sourceAccurate), tokens: .close)
     return .visitChildren
   }
diff --git a/Tests/SwiftFormatTests/PrettyPrint/FunctionTypeTests.swift b/Tests/SwiftFormatTests/PrettyPrint/FunctionTypeTests.swift
index 2bb5b326..d7b7f30c 100644
--- a/Tests/SwiftFormatTests/PrettyPrint/FunctionTypeTests.swift
+++ b/Tests/SwiftFormatTests/PrettyPrint/FunctionTypeTests.swift
@@ -316,15 +316,15 @@ final class FunctionTypeTests: PrettyPrintTestCase {
       expected: """
         func f(
           _ body:
-            nonisolated(nonsending)
-            () async -> Void
+            nonisolated(nonsending) ()
+            async -> Void
         ) {}
 
         func f(
           _ body:
             @Foo @Bar
-            nonisolated(nonsending)
-            () async -> Void
+            nonisolated(nonsending) ()
+            async -> Void
         ) {}
 
         func f(
@@ -336,8 +336,8 @@ final class FunctionTypeTests: PrettyPrintTestCase {
         func f(
           _ body:
             inout @Foo @Bar
-            nonisolated(nonsending)
-            () async -> Void
+            nonisolated(nonsending) ()
+            async -> Void
         ) {}
 
         """,