.swift-format: Enable ReturnVoidInsteadOfEmptyTuple

Author: AnthonyLatsis

.swift-format

@@ -13,6 +13,7 @@
         "NoBlockComments": false,
         "OrderedImports": true,
         "UseLetInEveryBoundCaseVariable": false,
-        "UseSynthesizedInitializer": false
+        "UseSynthesizedInitializer": false,
+        "ReturnVoidInsteadOfEmptyTuple": true,
     }
 }

Sources/SwiftParser/IncrementalParseTransition.swift

@@ -47,7 +47,7 @@ extension Parser {
 ///
 /// This is also used for testing purposes to ensure incremental reparsing
 /// worked as expected.
-public typealias ReusedNodeCallback = (_ node: Syntax) -> ()
+public typealias ReusedNodeCallback = (_ node: Syntax) -> Void
 
 /// Keeps track of a previously parsed syntax tree and the source edits that
 /// occurred since it was created.

Sources/SwiftSyntax/SourceLocation.swift

@@ -701,7 +701,7 @@ fileprivate extension SyntaxText {
   /// - Returns: The position at the end of the walk.
   func forEachEndOfLine(
     position: AbsolutePosition,
-    body: (AbsolutePosition) -> ()
+    body: (AbsolutePosition) -> Void
   ) -> AbsolutePosition {
     guard let startPtr = buffer.baseAddress else {
       return position
@@ -745,7 +745,7 @@ fileprivate extension RawTriviaPiece {
   /// - Returns: The position at the end of the walk.
   func forEachEndOfLine(
     position: AbsolutePosition,
-    body: (AbsolutePosition) -> ()
+    body: (AbsolutePosition) -> Void
   ) -> AbsolutePosition {
     var position = position
     switch self {
@@ -788,7 +788,7 @@ fileprivate extension RawTriviaPieceBuffer {
   /// - Returns: The position at the end of the walk.
   func forEachEndOfLine(
     position: AbsolutePosition,
-    body: (AbsolutePosition) -> ()
+    body: (AbsolutePosition) -> Void
   ) -> AbsolutePosition {
     var position = position
     for piece in self {
@@ -810,8 +810,8 @@ fileprivate extension RawSyntax {
   /// - Returns: The position at the end of the walk.
   func forEachEndOfLine(
     position: AbsolutePosition,
-    body: (AbsolutePosition) -> (),
-    handleSourceLocationDirective: (_ position: AbsolutePosition, _ rawSyntax: RawSyntax) -> ()
+    body: (AbsolutePosition) -> Void,
+    handleSourceLocationDirective: (_ position: AbsolutePosition, _ rawSyntax: RawSyntax) -> Void
   ) -> AbsolutePosition {
     var position = position
     switch self.rawData.payload {