Add space before curly parentheses. (#85306)

dev/benchmarks/macrobenchmarks/lib/src/cull_opacity.dart

@@ -24,7 +24,7 @@ class _CullOpacityPageState extends State<CullOpacityPage> with SingleTickerProv
     // This code uses a manual listener for historical reasons and will remain
     // in order to preserve compatibility with the history of measurements for
     // this benchmark.
-    _offsetY = Tween<double>(begin: 0, end: -1000.0).animate(_controller)..addListener((){
+    _offsetY = Tween<double>(begin: 0, end: -1000.0).animate(_controller)..addListener(() {
       setState(() {});
     });
     _controller.repeat();

dev/integration_tests/ios_add2app_life_cycle/flutterapp/lib/main.dart

@@ -44,7 +44,7 @@ class _LifeCycleSpyState extends State<LifeCycleSpy> with WidgetsBindingObserver
   List<AppLifecycleState?>? _actualLifeCycleSequence;
 
   @override
-  void initState(){
+  void initState() {
     super.initState();
     WidgetsBinding.instance?.addObserver(this);
     _actualLifeCycleSequence =  <AppLifecycleState?>[

dev/tools/gen_keycodes/lib/logical_key_data.dart

@@ -370,7 +370,7 @@ class LogicalKeyData {
   }();
 
   /// Returns the static map of printable representations.
-  static late final Map<String, String> printable = ((){
+  static late final Map<String, String> printable = (() {
     final String printableKeys = File(path.join(dataRoot, 'printable.json',)).readAsStringSync();
     return (json.decode(printableKeys) as Map<String, dynamic>)
       .cast<String, String>();
@@ -389,7 +389,7 @@ class LogicalKeyData {
   /// These include synonyms for keys which don't have printable
   /// representations, and appear in more than one place on the keyboard (e.g.
   /// SHIFT, ALT, etc.).
-  static late final Map<String, List<String>> synonyms = ((){
+  static late final Map<String, List<String>> synonyms = (() {
     final String synonymKeys = File(path.join(dataRoot, 'synonyms.json',)).readAsStringSync();
     final Map<String, dynamic> dynamicSynonym = json.decode(synonymKeys) as Map<String, dynamic>;
     return dynamicSynonym.map((String name, dynamic values) {

dev/tools/gen_keycodes/lib/physical_key_data.dart

@@ -364,7 +364,7 @@ class PhysicalKeyEntry {
   /// the name from the various different names available, making sure that the
   /// name isn't a Dart reserved word (if it is, then it adds the word "Key" to
   /// the end of the name).
-  late final String constantName = ((){
+  late final String constantName = (() {
     String? result;
     if (name.isEmpty) {
       // If it doesn't have a DomKey name then use the Chromium symbol name.

packages/flutter/lib/src/cupertino/date_picker.dart

@@ -1986,7 +1986,7 @@ class _CupertinoTimerPickerState extends State<CupertinoTimerPicker> {
         // label on top of it.
         List<Widget> columns;
 
-        if (widget.mode == CupertinoTimerPickerMode.hms){
+        if (widget.mode == CupertinoTimerPickerMode.hms) {
           // Pad the widget to make it as wide as `_kPickerWidth`.
           pickerColumnWidth =
               _kTimerPickerColumnIntrinsicWidth + (_kTimerPickerHalfColumnPadding * 2);

packages/flutter/lib/src/foundation/assertions.dart

@@ -1237,7 +1237,7 @@ class _FlutterErrorDetailsNode extends DiagnosticableNode<FlutterErrorDetails> {
   @override
   DiagnosticPropertiesBuilder? get builder {
     final DiagnosticPropertiesBuilder? builder = super.builder;
-    if (builder == null){
+    if (builder == null) {
       return null;
     }
     Iterable<DiagnosticsNode> properties = builder.properties;

packages/flutter/lib/src/foundation/change_notifier.dart

@@ -348,7 +348,7 @@ class ChangeNotifier implements Listenable {
           if (_listeners[i] == null) {
             // We swap this item with the next not null item.
             int swapIndex = i + 1;
-            while(_listeners[swapIndex] == null){
+            while(_listeners[swapIndex] == null) {
               swapIndex += 1;
             }
             _listeners[i] = _listeners[swapIndex];

packages/flutter/lib/src/material/chip.dart

@@ -1835,7 +1835,7 @@ class _RawChipState extends State<RawChip> with MaterialStateMixin, TickerProvid
   }
 
   Widget? _wrapWithTooltip(String? tooltip, VoidCallback? callback, Widget? child) {
-    if(!widget.useDeleteButtonTooltip){
+    if(!widget.useDeleteButtonTooltip) {
       return child;
     }
     if (child == null || callback == null || tooltip == null) {

packages/flutter/lib/src/material/reorderable_list.dart

@@ -35,7 +35,7 @@ import 'theme.dart';
 /// final List<int> _items = List<int>.generate(50, (int index) => index);
 ///
 /// @override
-/// Widget build(BuildContext context){
+/// Widget build(BuildContext context) {
 ///   final ColorScheme colorScheme = Theme.of(context).colorScheme;
 ///   final Color oddItemColor = colorScheme.primary.withOpacity(0.05);
 ///   final Color evenItemColor = colorScheme.primary.withOpacity(0.15);
@@ -238,7 +238,7 @@ class ReorderableListView extends StatefulWidget {
   /// final List<int> _items = List<int>.generate(50, (int index) => index);
   ///
   /// @override
-  /// Widget build(BuildContext context){
+  /// Widget build(BuildContext context) {
   ///   final ColorScheme colorScheme = Theme.of(context).colorScheme;
   ///   final Color oddItemColor = colorScheme.primary.withOpacity(0.05);
   ///   final Color evenItemColor = colorScheme.primary.withOpacity(0.15);

packages/flutter/lib/src/material/tab_controller.dart

@@ -119,7 +119,7 @@ import 'constants.dart';
 ///             ),
 ///           ),
 ///           body: TabBarView(
-///             children: tabs.map((Tab tab){
+///             children: tabs.map((Tab tab) {
 ///               return Center(
 ///                 child: Text(
 ///                   '${tab.text!} Tab',

packages/flutter/lib/src/material/theme_data.dart

@@ -2325,7 +2325,7 @@ class VisualDensity with Diagnosticable {
   ///
   /// The resulting minWidth and minHeight values are clamped to not exceed the
   /// maxWidth and maxHeight values, respectively.
-  BoxConstraints effectiveConstraints(BoxConstraints constraints){
+  BoxConstraints effectiveConstraints(BoxConstraints constraints) {
     assert(constraints != null && constraints.debugAssertIsValid());
     return constraints.copyWith(
       minWidth: (constraints.minWidth + baseSizeAdjustment.dx).clamp(0.0, constraints.maxWidth),

packages/flutter/lib/src/material/tooltip.dart

@@ -327,7 +327,7 @@ class _TooltipState extends State<Tooltip> with SingleTickerProviderStateMixin {
     }
     final bool mouseIsConnected = RendererBinding.instance!.mouseTracker.mouseIsConnected;
     if (mouseIsConnected != _mouseIsConnected) {
-      setState((){
+      setState(() {
         _mouseIsConnected = mouseIsConnected;
       });
     }

packages/flutter/lib/src/painting/image_stream.dart

@@ -718,7 +718,7 @@ abstract class ImageStreamCompleter with Diagnosticable {
   /// [ImageStreamListener.onChunk] specified) to notify them of a new
   /// [ImageChunkEvent].
   @protected
-  void reportImageChunkEvent(ImageChunkEvent event){
+  void reportImageChunkEvent(ImageChunkEvent event) {
     _checkDisposed();
     if (hasListeners) {
       // Make a copy to allow for concurrent modification.

packages/flutter/lib/src/rendering/layer.dart

@@ -2527,7 +2527,7 @@ class FollowerLayer extends ContainerLayer {
     if (a.depth < b.depth) {
       ancestorsB.add(b.parent);
       return _pathsToCommonAncestor(a, b.parent, ancestorsA, ancestorsB);
-    } else if (a.depth > b.depth){
+    } else if (a.depth > b.depth) {
       ancestorsA.add(a.parent);
       return _pathsToCommonAncestor(a.parent, b, ancestorsA, ancestorsB);
     }

packages/flutter/lib/src/rendering/sliver_fixed_extent_list.dart

@@ -153,7 +153,7 @@ abstract class RenderSliverFixedExtentBoxAdaptor extends RenderSliverMultiBoxAda
   int _calculateLeadingGarbage(int firstIndex) {
     RenderBox? walker = firstChild;
     int leadingGarbage = 0;
-    while(walker != null && indexOf(walker) < firstIndex){
+    while(walker != null && indexOf(walker) < firstIndex) {
       leadingGarbage += 1;
       walker = childAfter(walker);
     }
@@ -163,7 +163,7 @@ abstract class RenderSliverFixedExtentBoxAdaptor extends RenderSliverMultiBoxAda
   int _calculateTrailingGarbage(int targetLastIndex) {
     RenderBox? walker = lastChild;
     int trailingGarbage = 0;
-    while(walker != null && indexOf(walker) > targetLastIndex){
+    while(walker != null && indexOf(walker) > targetLastIndex) {
       trailingGarbage += 1;
       walker = childBefore(walker);
     }

packages/flutter/lib/src/rendering/sliver_multi_box_adaptor.dart

@@ -248,7 +248,7 @@ abstract class RenderSliverMultiBoxAdaptor extends RenderSliver
   /// Verify that the child list index is in strictly increasing order.
   ///
   /// This has no effect in release builds.
-  bool _debugVerifyChildOrder(){
+  bool _debugVerifyChildOrder() {
     if (_debugChildIntegrityEnabled) {
       RenderBox? child = firstChild;
       int index;

packages/flutter/lib/src/services/raw_keyboard.dart

@@ -170,7 +170,7 @@ abstract class RawKeyEventData {
         if (side != null) {
           result[key] = side;
         }
-        assert((){
+        assert(() {
           if (side == null) {
             debugPrint(
               'Raw key data is returning inconsistent information for '
@@ -767,7 +767,7 @@ class RawKeyboard {
         }
       }
       final Set<PhysicalKeyboardKey>? mappedKeys = _modifierKeyMap[_ModifierSidePair(key, modifiersPressed[key])];
-      assert((){
+      assert(() {
         if (mappedKeys == null) {
           debugPrint(
             'Platform key support for ${Platform.operatingSystem} is '

packages/flutter/lib/src/widgets/animated_list.dart

@@ -402,7 +402,7 @@ class AnimatedList extends StatefulWidget {
   static AnimatedListState of(BuildContext context) {
     assert(context != null);
     final AnimatedListState? result = context.findAncestorStateOfType<AnimatedListState>();
-    assert((){
+    assert(() {
       if (result == null) {
         throw FlutterError.fromParts(<DiagnosticsNode>[
           ErrorSummary('AnimatedList.of() called with a context that does not contain an AnimatedList.'),
@@ -822,7 +822,7 @@ class SliverAnimatedList extends StatefulWidget {
   static SliverAnimatedListState of(BuildContext context) {
     assert(context != null);
     final SliverAnimatedListState? result = context.findAncestorStateOfType<SliverAnimatedListState>();
-    assert((){
+    assert(() {
       if (result == null) {
         throw FlutterError(
           'SliverAnimatedList.of() called with a context that does not contain a SliverAnimatedList.\n'

packages/flutter/lib/src/widgets/editable_text.dart

@@ -1836,7 +1836,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
 
   @override
   void updateFloatingCursor(RawFloatingCursorPoint point) {
-    switch(point.state){
+    switch(point.state) {
       case FloatingCursorDragState.Start:
         if (_floatingCursorResetController.isAnimating) {
           _floatingCursorResetController.stop();

packages/flutter/lib/src/widgets/focus_traversal.dart

@@ -1425,7 +1425,7 @@ class FocusTraversalOrder extends InheritedWidget {
   static FocusOrder of(BuildContext context) {
     assert(context != null);
     final FocusTraversalOrder? marker = context.getElementForInheritedWidgetOfExactType<FocusTraversalOrder>()?.widget as FocusTraversalOrder?;
-    assert((){
+    assert(() {
       if (marker == null) {
         throw FlutterError(
           'FocusTraversalOrder.of() was called with a context that '

packages/flutter/lib/src/widgets/navigator.dart

@@ -3363,7 +3363,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
   @override
   void initState() {
     super.initState();
-    assert((){
+    assert(() {
       if (widget.pages != const <Page<dynamic>>[]) {
         // This navigator uses page API.
         if (widget.pages.isEmpty) {
@@ -3564,7 +3564,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
   @override
   void didUpdateWidget(Navigator oldWidget) {
     super.didUpdateWidget(oldWidget);
-    assert((){
+    assert(() {
       if (widget.pages != const <Page<dynamic>>[]) {
         // This navigator uses page API.
         if (widget.pages.isEmpty) {
@@ -3603,7 +3603,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
       _updateEffectiveObservers();
     }
     if (oldWidget.pages != widget.pages && !restorePending) {
-      assert((){
+      assert(() {
         if (widget.pages.isEmpty) {
           FlutterError.reportError(
             FlutterErrorDetails(
@@ -3626,7 +3626,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
   }
 
   void _debugCheckDuplicatedPageKeys() {
-    assert((){
+    assert(() {
       final Set<Key> keyReservation = <Key>{};
       for (final Page<dynamic> page in widget.pages) {
         final LocalKey? key = page.key;
@@ -4513,7 +4513,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
   }
 
   bool _debugCheckIsPagelessRoute(Route<dynamic> route) {
-    assert((){
+    assert(() {
       if (route.settings is Page) {
         FlutterError.reportError(
           FlutterErrorDetails(

packages/flutter/lib/src/widgets/platform_view.dart

@@ -899,7 +899,7 @@ class _PlatformViewLinkState extends State<PlatformViewLink> {
     );
   }
 
-  void _handlePlatformFocusChanged(bool isFocused){
+  void _handlePlatformFocusChanged(bool isFocused) {
     if (isFocused) {
       _focusNode!.requestFocus();
     }

packages/flutter/lib/src/widgets/reorderable_list.dart

@@ -244,7 +244,7 @@ class ReorderableList extends StatefulWidget {
   static ReorderableListState of(BuildContext context) {
     assert(context != null);
     final ReorderableListState? result = context.findAncestorStateOfType<ReorderableListState>();
-    assert((){
+    assert(() {
       if (result == null) {
         throw FlutterError.fromParts(<DiagnosticsNode>[
           ErrorSummary('ReorderableList.of() called with a context that does not contain a ReorderableList.'),
@@ -450,7 +450,7 @@ class SliverReorderableList extends StatefulWidget {
   static SliverReorderableListState of(BuildContext context) {
     assert(context != null);
     final SliverReorderableListState? result = context.findAncestorStateOfType<SliverReorderableListState>();
-    assert((){
+    assert(() {
       if (result == null) {
         throw FlutterError.fromParts(<DiagnosticsNode>[
           ErrorSummary(

packages/flutter/test/material/chip_test.dart

@@ -197,7 +197,7 @@ Widget _chipWithOptionalDeleteButton({
   required bool deletable,
   TextDirection textDirection = TextDirection.ltr,
   bool hasDeleteButtonTooltip = true,
-}){
+}) {
   return _wrapForChip(
     textDirection: textDirection,
     child: Wrap(

packages/flutter/test/material/dropdown_form_field_test.dart

@@ -400,7 +400,7 @@ void main() {
   testWidgets('DropdownButtonFormField - disabledHint displays when the items list is empty, when items is null', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
 
-    Widget build({ List<String>? items }){
+    Widget build({ List<String>? items }) {
       return buildFormFrame(
         items: items,
         buttonKey: buttonKey,
@@ -426,7 +426,7 @@ void main() {
     (WidgetTester tester) async {
       final Key buttonKey = UniqueKey();
 
-      Widget build({ List<String>? items }){
+      Widget build({ List<String>? items }) {
         return buildFormFrame(
           items: items,
           buttonKey: buttonKey,
@@ -448,7 +448,7 @@ void main() {
   testWidgets('DropdownButtonFormField - disabledHint is null by default', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
 
-    Widget build({ List<String>? items }){
+    Widget build({ List<String>? items }) {
       return buildFormFrame(
         items: items,
         buttonKey: buttonKey,
@@ -468,7 +468,7 @@ void main() {
   testWidgets('DropdownButtonFormField - disabledHint is null by default', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
 
-    Widget build({ List<String>? items }){
+    Widget build({ List<String>? items }) {
       return buildFormFrame(
         items: items,
         buttonKey: buttonKey,
@@ -488,7 +488,7 @@ void main() {
   testWidgets('DropdownButtonFormField - disabledHint displays when onChanged is null', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
 
-    Widget build({ List<String>? items, ValueChanged<String?>? onChanged }){
+    Widget build({ List<String>? items, ValueChanged<String?>? onChanged }) {
       return buildFormFrame(
         items: items,
         buttonKey: buttonKey,
@@ -506,7 +506,7 @@ void main() {
   testWidgets('DropdownButtonFormField - disabled hint should be of same size as enabled hint', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
 
-    Widget build({ List<String>? items}){
+    Widget build({ List<String>? items}) {
       return buildFormFrame(
         items: items,
         buttonKey: buttonKey,

packages/flutter/test/material/dropdown_test.dart

@@ -1557,7 +1557,7 @@ void main() {
     (WidgetTester tester) async {
       final Key buttonKey = UniqueKey();
 
-      Widget build({ List<String>? items }){
+      Widget build({ List<String>? items }) {
         return buildFrame(
           items: items,
           buttonKey: buttonKey,
@@ -1579,7 +1579,7 @@ void main() {
   testWidgets('DropdownButton disabledHint is null by default', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
 
-    Widget build({ List<String>? items }){
+    Widget build({ List<String>? items }) {
       return buildFrame(
         items: items,
         buttonKey: buttonKey,

packages/flutter/test/material/list_tile_test.dart

@@ -1417,7 +1417,7 @@ void main() {
                 child: ListTile(
                   key: tileKey,
                   onTap: enabled ? () {
-                    setState((){
+                    setState(() {
                       tapped = true;
                     });
                   } : null,

packages/flutter/test/material/text_form_field_test.dart

@@ -121,7 +121,7 @@ void main() {
         maxLength: TextField.noMaxLength,
       );
       asserted = false;
-    } catch (e){
+    } catch (e) {
       asserted = true;
     }
     expect(asserted, false);

packages/flutter/test/painting/text_painter_test.dart

@@ -835,7 +835,7 @@ void main() {
   }, skip: isBrowser); // https://github.com/flutter/flutter/issues/56308
 
   group('TextPainter line-height', () {
-    test('half-leading', (){
+    test('half-leading', () {
       const TextStyle style = TextStyle(
         height: 20,
         fontSize: 1,
@@ -858,7 +858,7 @@ void main() {
       expect(insets.top, (20 - 1) / 2);
     });
 
-    test('half-leading with small height', (){
+    test('half-leading with small height', () {
       const TextStyle style = TextStyle(
         height: 0.1,
         fontSize: 10,
@@ -882,7 +882,7 @@ void main() {
       expect(insets.top, (1 - 10) / 2);
     });
 
-    test('half-leading with leading trim', (){
+    test('half-leading with leading trim', () {
       const TextStyle style = TextStyle(
         height: 0.1,
         fontSize: 10,
@@ -908,7 +908,7 @@ void main() {
       expect(glyphBox.topLeft, Offset.zero);
     });
 
-    test('TextLeadingDistribution falls back to paragraph style', (){
+    test('TextLeadingDistribution falls back to paragraph style', () {
       const TextStyle style = TextStyle(height: 20, fontSize: 1);
       final TextPainter painter = TextPainter()
         ..textDirection = TextDirection.ltr
@@ -928,7 +928,7 @@ void main() {
       expect(insets.top, (20 - 1) / 2);
     });
 
-    test('TextLeadingDistribution does nothing if height multiplier is null', (){
+    test('TextLeadingDistribution does nothing if height multiplier is null', () {
       const TextStyle style = TextStyle(fontSize: 1);
       final TextPainter painter = TextPainter()
         ..textDirection = TextDirection.ltr

packages/flutter/test/rendering/platform_view_test.dart

@@ -40,7 +40,7 @@ void main() {
       expect(platformViewRenderBox.size, const Size(100, 100));
     });
 
-    test('send semantics update if id is changed', (){
+    test('send semantics update if id is changed', () {
       final RenderConstrainedBox tree = RenderConstrainedBox(
         additionalConstraints: const BoxConstraints.tightFor(height: 20.0, width: 20.0),
         child: platformViewRenderBox,

packages/flutter/test/widgets/framework_test.dart

@@ -1084,7 +1084,7 @@ void main() {
     expect(tabController.index, 0);
 
     // switch tabs 0 -> 1
-    setState((){
+    setState(() {
       tabController.index = 1;
     });
 
@@ -1093,7 +1093,7 @@ void main() {
     expect(tabController.index, 1);
 
     // rebuild TabBarView that only have the 1st page with GlobalKey 'key1'
-    setState((){
+    setState(() {
       tabBarViewCnt = 1;
       tabController = TabController(length: tabBarViewCnt, vsync: const TestVSync());
     });

packages/flutter/test/widgets/interactive_viewer_test.dart

@@ -635,15 +635,15 @@ void main() {
             body: Center(
               child: InteractiveViewer(
                 transformationController: transformationController,
-                onInteractionStart: (ScaleStartDetails details){
+                onInteractionStart: (ScaleStartDetails details) {
                   calledStart = true;
                 },
-                onInteractionUpdate: (ScaleUpdateDetails details){
+                onInteractionUpdate: (ScaleUpdateDetails details) {
                   scaleChange = details.scale;
                   focalPoint = details.focalPoint;
                   localFocalPoint = details.localFocalPoint;
                 },
-                onInteractionEnd: (ScaleEndDetails details){
+                onInteractionEnd: (ScaleEndDetails details) {
                   currentVelocity = details.velocity;
                 },
                 child: const SizedBox(width: 200.0, height: 200.0),

packages/flutter/test/widgets/navigator_test.dart

@@ -780,7 +780,7 @@ void main() {
       ),
       '/A/B': (BuildContext context) => OnTapPage(
         id: 'B',
-        onTap: (){
+        onTap: () {
           Navigator.of(context).popUntil((Route<dynamic> route) => route.isFirst);
           Navigator.of(context).pushReplacementNamed('/C');
         },
@@ -847,7 +847,7 @@ void main() {
       ),
       '/A/B': (BuildContext context) => OnTapPage(
         id: 'B',
-        onTap: (){
+        onTap: () {
           // Pops all routes with bad predicate.
           Navigator.of(context).popUntil((Route<dynamic> route) => false);
         },
@@ -2543,7 +2543,7 @@ void main() {
     );
   });
 
-  group('Page api', (){
+  group('Page api', () {
     Widget buildNavigator({
       required List<Page<dynamic>> pages,
       required PopPageCallback onPopPage,
@@ -2650,7 +2650,7 @@ void main() {
       final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
         '/' : (BuildContext context) => OnTapPage(
           id: action,
-          onTap: (){
+          onTap: () {
             if (action == 'push') {
               Navigator.of(context).push(myPage.createRoute(context));
             } else if (action == 'pushReplacement') {

packages/flutter/test/widgets/router_test.dart

@@ -1080,7 +1080,7 @@ testWidgets('ChildBackButtonDispatcher take priority recursively', (WidgetTester
     ));
 
     // Only update BackButtonListener widget.
-    setState((){
+    setState(() {
       location = 'second callback';
     });
 

packages/flutter/test/widgets/scroll_view_test.dart

@@ -278,7 +278,7 @@ void main() {
         gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount:2),
         keyboardDismissBehavior: ScrollViewKeyboardDismissBehavior.onDrag,
         itemCount: focusNodes.length,
-        itemBuilder: (BuildContext context, int index){
+        itemBuilder: (BuildContext context, int index) {
           return Container(
             height: 50,
             color: Colors.green,
@@ -590,7 +590,7 @@ void main() {
         gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount:2),
         keyboardDismissBehavior: ScrollViewKeyboardDismissBehavior.manual,
         itemCount: focusNodes.length,
-        itemBuilder: (BuildContext context, int index){
+        itemBuilder: (BuildContext context, int index) {
           return Container(
             height: 50,
             color: Colors.green,

packages/flutter/test/widgets/selectable_text_test.dart

@@ -4648,7 +4648,7 @@ void main() {
       MaterialApp(
         home: SelectableText(
           ' blah blah',
-          onSelectionChanged: (TextSelection newSelection, SelectionChangedCause? cause){
+          onSelectionChanged: (TextSelection newSelection, SelectionChangedCause? cause) {
             selection = newSelection;
           },
         ),
@@ -4694,7 +4694,7 @@ void main() {
           child: Center(
             child: SelectableText(
               ' blah blah',
-              onSelectionChanged: (TextSelection newSelection, SelectionChangedCause? cause){
+              onSelectionChanged: (TextSelection newSelection, SelectionChangedCause? cause) {
                 selection = newSelection;
               },
             ),
@@ -4747,7 +4747,7 @@ void main() {
           child: Center(
             child: SelectableText(
               ' blah blah  \n  blah',
-              onSelectionChanged: (TextSelection newSelection, SelectionChangedCause? cause){
+              onSelectionChanged: (TextSelection newSelection, SelectionChangedCause? cause) {
                 selection = newSelection;
               },
             ),

packages/flutter_test/test/live_binding_test.dart

@@ -23,7 +23,7 @@ void main() {
     PointerHoverEvent? hoverEvent;
     await tester.pumpWidget(MaterialApp(home: MouseRegion(
       child: const Text('Test'),
-      onHover: (PointerHoverEvent event){
+      onHover: (PointerHoverEvent event) {
         hoverEvent = event;
       },
     )));

packages/flutter_test/test/widget_tester_test.dart

@@ -706,11 +706,11 @@ void main() {
     int numberOfVariationsRun = 0;
     TargetPlatform? origTargetPlatform;
 
-    setUpAll((){
+    setUpAll(() {
       origTargetPlatform = debugDefaultTargetPlatformOverride;
     });
 
-    tearDownAll((){
+    tearDownAll(() {
       expect(debugDefaultTargetPlatformOverride, equals(origTargetPlatform));
     });
 

packages/flutter_tools/lib/src/cache.dart

@@ -1106,7 +1106,7 @@ class ArtifactUpdater {
 }
 
 @visibleForTesting
-String flattenNameSubdirs(Uri url, FileSystem fileSystem){
+String flattenNameSubdirs(Uri url, FileSystem fileSystem) {
   final List<String> pieces = <String>[url.host, ...url.pathSegments];
   final Iterable<String> convertedPieces = pieces.map<String>(_flattenNameNoSubdirs);
   return fileSystem.path.joinAll(convertedPieces);

packages/flutter_tools/lib/src/commands/channel.dart

@@ -96,7 +96,7 @@ class ChannelCommand extends FlutterCommand {
       // only print non-missing channels
       if (availableChannels[i]) {
         String currentIndicator = ' ';
-        if (officialChannels[i] == currentChannel){
+        if (officialChannels[i] == currentChannel) {
           currentIndicator = '*';
         }
         globals.printStatus('$currentIndicator ${officialChannels[i]}');

packages/flutter_tools/lib/src/commands/create.dart

@@ -308,7 +308,7 @@ class CreateCommand extends CreateBase {
       _printPluginDirectoryLocationMessage(relativePluginPath, projectName, platformsString);
       if (!creatingNewProject && requestedPlatforms.isNotEmpty) {
         _printPluginUpdatePubspecMessage(relativePluginPath, platformsString);
-      } else if (_getSupportedPlatformsInPlugin(projectDir).isEmpty){
+      } else if (_getSupportedPlatformsInPlugin(projectDir).isEmpty) {
         _printNoPluginMessage();
       }
 

packages/flutter_tools/lib/src/device.dart

@@ -266,7 +266,7 @@ abstract class DeviceManager {
             .where((Device device) => device.ephemeral == true)
             .toList();
 
-            if (ephemeralDevices.length == 1){
+            if (ephemeralDevices.length == 1) {
               devices = ephemeralDevices;
             }
       }

packages/flutter_tools/lib/src/drive/web_driver_service.dart

@@ -279,7 +279,7 @@ Map<String, dynamic> getDesiredCapabilities(Browser browser, bool headless, [Str
 }
 
 /// Converts [browserName] string to [Browser]
-Browser _browserNameToEnum(String browserName){
+Browser _browserNameToEnum(String browserName) {
   switch (browserName) {
     case 'android-chrome': return Browser.androidChrome;
     case 'chrome': return Browser.chrome;

packages/flutter_tools/test/general.shard/plugins_test.dart

@@ -834,7 +834,7 @@ dependencies:
         const String newPluginName = 'flutterEngine.getPlugins().add(new plugin1.UseNewEmbedding());';
         const String oldPluginName = 'abcplugin1.UseOldEmbedding.registerWith(shimPluginRegistry.registrarFor("abcplugin1.UseOldEmbedding"));';
         final String content = registrant.readAsStringSync();
-        for(final String plugin in <String>[newPluginName,oldPluginName]){
+        for(final String plugin in <String>[newPluginName,oldPluginName]) {
           expect(content, contains(plugin));
           expect(content.split(plugin).first.trim().endsWith('try {'), isTrue);
           expect(content.split(plugin).last.trim().startsWith('} catch(Exception e) {'), isTrue);

packages/flutter_tools/test/general.shard/project_test.dart

@@ -277,7 +277,7 @@ void main() {
         expectExists(pluginRegistrantClasses.childFile('GeneratedPluginRegistrant.m'));
       });
 
-      testUsingContext('Version.json info is correct', (){
+      testUsingContext('Version.json info is correct', () {
         final MemoryFileSystem fileSystem = MemoryFileSystem.test();
         final FlutterManifest manifest = FlutterManifest.createFromString('''
     name: test