Migrate to null aware elements - Part 3 (flutter#172307)

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Replace null checks with null aware elements - part 3

Part of flutter#172188

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Author: jamilsaadeh97

packages/flutter_tools/lib/src/android/android_sdk.dart

@@ -185,7 +185,7 @@ class AndroidSdk {
     final String? avdHome = globals.platform.environment['ANDROID_AVD_HOME'];
     final String? home = globals.platform.environment['HOME'];
     final searchPaths = <String>[
-      if (avdHome != null) avdHome,
+      ?avdHome,
       if (home != null) globals.fs.path.join(home, '.android', 'avd'),
     ];
 

packages/flutter_tools/lib/src/compile.dart

@@ -370,7 +370,7 @@ class KernelCompiler {
           // See: https://github.com/flutter/flutter/issues/103994
           '--verbosity=error',
           ...?extraFrontEndOptions,
-          if (mainUri != null) mainUri else '--native-assets-only',
+          mainUri ?? '--native-assets-only',
         ];
 
     _logger.printTrace(command.join(' '));

packages/flutter_tools/lib/src/debug_adapters/flutter_test_adapter.dart

@@ -64,12 +64,7 @@ class FlutterTestDebugAdapter extends FlutterBaseDebugAdapter with TestAdapter {
       toolArgs.removeRange(0, math.min(removeArgs, toolArgs.length));
     }
 
-    final processArgs = <String>[
-      ...toolArgs,
-      ...?args.toolArgs,
-      if (program != null) program,
-      ...?args.args,
-    ];
+    final processArgs = <String>[...toolArgs, ...?args.toolArgs, ?program, ...?args.args];
 
     await launchAsProcess(executable: executable, processArgs: processArgs, env: args.env);
 

packages/flutter_tools/lib/src/doctor.dart

@@ -651,10 +651,7 @@ class FlutterValidator extends DoctorValidator {
   List<ValidationMessage> _validateRequiredBinaries(String flutterRoot) {
     final ValidationMessage? flutterWarning = _validateSdkBinary('flutter', flutterRoot);
     final ValidationMessage? dartWarning = _validateSdkBinary('dart', flutterRoot);
-    return <ValidationMessage>[
-      if (flutterWarning != null) flutterWarning,
-      if (dartWarning != null) dartWarning,
-    ];
+    return <ValidationMessage>[?flutterWarning, ?dartWarning];
   }
 
   /// Return a warning if the provided [binary] on the user's path does not

packages/flutter_tools/lib/src/project.dart

@@ -165,10 +165,7 @@ class FlutterProject {
     if (android.existsSync()) {
       final String? applicationId = android.applicationId;
       final String? group = android.group;
-      candidates.addAll(<String>[
-        if (applicationId != null) applicationId,
-        if (group != null) group,
-      ]);
+      candidates.addAll(<String>[?applicationId, ?group]);
     }
     if (example.android.existsSync()) {
       final String? applicationId = example.android.applicationId;

packages/flutter_tools/lib/src/test/flutter_web_platform.dart

@@ -661,7 +661,7 @@ class FlutterWebPlatform extends PlatformPlugin {
   @override
   Future<void> close() => _closeMemo.runOnce(() async {
     await Future.wait<void>(<Future<dynamic>>[
-      if (_browserManager != null) _browserManager!.close(),
+      ?_browserManager?.close(),
       _server.close(),
       _testGoldenComparator.close(),
     ]);

packages/flutter_tools/lib/src/version.dart

@@ -223,12 +223,7 @@ abstract class FlutterVersion {
 
   String _getTimeSinceCommit({String? revision}) {
     return _git
-        .logSync([
-          '-n',
-          '1',
-          '--pretty=format:%ar',
-          if (revision != null) revision,
-        ], workingDirectory: flutterRoot)
+        .logSync(['-n', '1', '--pretty=format:%ar', ?revision], workingDirectory: flutterRoot)
         .stdout
         .trim();
   }

packages/flutter_tools/test/commands.shard/permeable/create_test.dart

@@ -4911,7 +4911,7 @@ Future<void> _runFlutterTest(Directory workingDir, {String? target}) async {
 
   await _getPackages(workingDir);
 
-  final args = <String>[flutterToolsSnapshotPath, 'test', '--no-color', if (target != null) target];
+  final args = <String>[flutterToolsSnapshotPath, 'test', '--no-color', ?target];
 
   final ProcessResult exec = await Process.run(
     globals.artifacts!.getArtifactPath(Artifact.engineDartBinary),

packages/flutter_tools/test/commands.shard/permeable/widget_preview/widget_preview_test.dart

@@ -154,7 +154,7 @@ void main() {
       ...?arguments,
       '--no-launch-previewer',
       '--verbose',
-      if (rootProject != null) rootProject.path,
+      ?rootProject?.path,
     ]);
     final Directory widgetPreviewScaffoldDir = widgetPreviewScaffoldFromRootProject(
       rootProject: rootProject ?? current,