feat(auth,3.0): Sealed types

packages/amplify_core/lib/amplify_core.dart

@@ -85,8 +85,6 @@ export 'src/types/exception/codegen_exception.dart';
 export 'src/types/exception/error/amplify_error.dart';
 export 'src/types/exception/error/configuration_error.dart';
 export 'src/types/exception/error/plugin_error.dart';
-export 'src/types/exception/network_exception.dart';
-export 'src/types/exception/unknown_exception.dart';
 export 'src/types/exception/url_launcher_exception.dart';
 
 /// Model-based types used in datastore and API

packages/amplify_core/lib/src/category/amplify_categories.dart

@@ -49,28 +49,17 @@ enum Category {
   storage,
 
   /// Push Notifications
-  pushNotifications,
-}
-
-extension CategoryName on Category {
-  String get name {
-    switch (this) {
-      case Category.analytics:
-        return 'Analytics';
-      case Category.api:
-        return 'API';
-      case Category.auth:
-        return 'Auth';
-      case Category.dataStore:
-        return 'DataStore';
-      case Category.hub:
-        return 'Hub';
-      case Category.storage:
-        return 'Storage';
-      case Category.pushNotifications:
-        return 'PushNotifications';
-    }
-  }
+  pushNotifications;
+
+  String get name => switch (this) {
+        Category.analytics => 'Analytics',
+        Category.api => 'API',
+        Category.auth => 'Auth',
+        Category.dataStore => 'DataStore',
+        Category.hub => 'Hub',
+        Category.storage => 'Storage',
+        Category.pushNotifications => 'PushNotifications',
+      };
 }
 
 /// Base functionality for Amplify categories.
@@ -88,11 +77,10 @@ abstract class AmplifyCategory<P extends AmplifyPluginInterface> {
 
   @protected
   P get defaultPlugin {
-    final plugin = plugins.firstOrNull;
-    if (plugin == null) {
-      throw _pluginNotAddedException(category.name);
+    if (plugins case [final singlePlugin]) {
+      return singlePlugin;
     }
-    return plugin;
+    throw _pluginNotAddedException(category.name);
   }
 
   /// Adds a plugin to the category.

packages/amplify_core/lib/src/state_machine/event.dart

@@ -20,6 +20,7 @@ abstract base class StateMachineEvent<EventType extends Object,
   EventType get type;
 
   /// Casts this to an event of type [E].
+  @Deprecated('Use pattern matching instead')
   E cast<E extends StateMachineEvent<EventType, StateType>>() => this as E;
 
   /// Checks the precondition, given [currentState].

packages/amplify_core/lib/src/state_machine/state_machine.dart

@@ -31,8 +31,8 @@ mixin Dispatcher<E extends StateMachineEvent, S extends StateMachineState> {
   ) async {
     final completer = dispatch(event);
     final state = await completer.completed;
-    if (state is ErrorState) {
-      Error.throwWithStackTrace(state.exception, state.stackTrace);
+    if (state case ErrorState(:final exception, :final stackTrace)) {
+      Error.throwWithStackTrace(exception, stackTrace);
     }
     return state as SuccessState;
   }
@@ -161,8 +161,8 @@ abstract class StateMachineManager<
   ) async {
     final completer = accept(event);
     final state = await completer.completed;
-    if (state is ErrorState) {
-      Error.throwWithStackTrace(state.exception, state.stackTrace);
+    if (state case ErrorState(:final exception, :final stackTrace)) {
+      Error.throwWithStackTrace(exception, stackTrace);
     }
     return state as SuccessState;
   }

packages/amplify_core/lib/src/types/auth/auth_types.dart

@@ -2,14 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 /// Exceptions
-export '../exception/auth/auth_exception.dart';
-export '../exception/auth/invalid_state_exception.dart';
-export '../exception/auth/not_authorized_exception.dart';
-export '../exception/auth/service_exception.dart';
-export '../exception/auth/session_expired_exception.dart';
-export '../exception/auth/signed_out_exception.dart';
-export '../exception/auth/user_cancelled_exception.dart';
-export '../exception/auth/validation_exception.dart';
+export '../exception/amplify_exception.dart';
 
 /// Attributes
 export 'attribute/auth_next_update_attribute_step.dart';

packages/amplify_core/lib/src/types/exception/amplify_exception.dart

@@ -4,6 +4,17 @@
 import 'package:amplify_core/amplify_core.dart';
 import 'package:meta/meta.dart';
 
+part 'auth/auth_exception.dart';
+part 'auth/invalid_state_exception.dart';
+part 'auth/not_authorized_exception.dart';
+part 'auth/service_exception.dart';
+part 'auth/session_expired_exception.dart';
+part 'auth/signed_out_exception.dart';
+part 'auth/user_cancelled_exception.dart';
+part 'auth/validation_exception.dart';
+part 'network_exception.dart';
+part 'unknown_exception.dart';
+
 /// {@template amplify_core.amplify_exception}
 /// Thrown from top level Amplify APIs from the amplify-flutter package.
 /// All other Amplify APIs throw subclasses of AmplifyException.

packages/amplify_core/lib/src/types/exception/auth/auth_exception.dart

@@ -1,12 +1,12 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.auth_exception}
-/// The base class for Auth category exceptions.
+/// The class for Auth category exceptions.
 /// {@endtemplate}
-abstract class AuthException extends AmplifyException with AWSDebuggable {
+sealed class AuthException extends AmplifyException with AWSDebuggable {
   /// {@macro amplify_core.auth.auth_exception}
   const AuthException(
     super.message, {

packages/amplify_core/lib/src/types/exception/auth/invalid_state_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.invalid_state_exception}
 /// Exception thrown when the requested operation is not valid in the current

packages/amplify_core/lib/src/types/exception/auth/not_authorized_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.not_authorized_exception}
 /// Exception thrown when the current session is not authorized to perform an

packages/amplify_core/lib/src/types/exception/auth/service_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.service_exception}
 /// Exception thrown when some error occurs in the underlying service.

packages/amplify_core/lib/src/types/exception/auth/session_expired_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.session_expired_exception}
 /// Exception thrown when the current session is expired.

packages/amplify_core/lib/src/types/exception/auth/signed_out_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.signed_out_exception}
 /// Exception thrown when the requested operation can't be performed due to the

packages/amplify_core/lib/src/types/exception/auth/user_cancelled_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.user_cancelled_exception}
 /// Exception thrown when a requested operation could not be completed because

packages/amplify_core/lib/src/types/exception/auth/validation_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of '../amplify_exception.dart';
 
 /// {@template amplify_core.auth.validation_exception}
 /// Exception thrown when one of the input fields to an operation is invalid.

packages/amplify_core/lib/src/types/exception/network_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of 'amplify_exception.dart';
 
 /// {@template amplify_core.network_exception}
 /// Exception thrown when the requested operation fails due to a network

packages/amplify_core/lib/src/types/exception/unknown_exception.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import 'package:amplify_core/amplify_core.dart';
+part of 'amplify_exception.dart';
 
 /// {@template amplify_core.unknown_exception}
 /// Exception thrown when an unknown error from an underlying SDK or service is

packages/auth/amplify_auth_cognito/example/integration_test/federated_sign_in_test.dart

@@ -8,10 +8,8 @@ import 'package:amplify_auth_cognito/amplify_auth_cognito.dart';
 import 'package:amplify_auth_cognito_dart/src/credentials/cognito_keys.dart';
 // ignore: invalid_use_of_internal_member
 import 'package:amplify_auth_cognito_dart/src/model/sign_in_parameters.dart';
-import 'package:amplify_auth_cognito_dart/src/state/event/sign_in_event.dart';
-import 'package:amplify_auth_cognito_dart/src/state/machines/sign_in_state_machine.dart';
-import 'package:amplify_auth_cognito_dart/src/state/state/credential_store_state.dart';
-import 'package:amplify_auth_cognito_dart/src/state/state/sign_in_state.dart';
+// ignore: invalid_use_of_internal_member
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_auth_cognito_example/amplifyconfiguration.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:amplify_integration_test/amplify_integration_test.dart';

packages/auth/amplify_auth_cognito/example/integration_test/hosted_ui_webview_test.dart

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-// ignore_for_file: invalid_use_of_protected_member
+// ignore_for_file: invalid_use_of_protected_member, invalid_use_of_internal_member
 
 import 'dart:async';
 import 'dart:io';
@@ -12,7 +12,7 @@ import 'package:amplify_auth_cognito/src/flows/hosted_ui/hosted_ui_platform_flut
 import 'package:amplify_auth_cognito_dart/src/flows/hosted_ui/hosted_ui_platform.dart';
 import 'package:amplify_auth_cognito_dart/src/model/hosted_ui/oauth_parameters.dart';
 import 'package:amplify_auth_cognito_dart/src/state/cognito_state_machine.dart';
-import 'package:amplify_auth_cognito_dart/src/state/event/hosted_ui_event.dart';
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_auth_cognito_example/amplifyconfiguration.dart';
 import 'package:amplify_auth_cognito_test/amplify_auth_cognito_test.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';

packages/auth/amplify_auth_cognito/lib/src/auth_plugin_impl.dart

@@ -21,10 +21,8 @@ import 'package:amplify_auth_cognito_dart/src/flows/hosted_ui/hosted_ui_platform
 import 'package:amplify_auth_cognito_dart/src/model/hosted_ui/oauth_parameters.dart';
 // ignore: implementation_imports
 import 'package:amplify_auth_cognito_dart/src/state/cognito_state_machine.dart';
-// ignore: implementation_imports
-import 'package:amplify_auth_cognito_dart/src/state/event/hosted_ui_event.dart';
-// ignore: implementation_imports
-import 'package:amplify_auth_cognito_dart/src/state/machines/hosted_ui_state_machine.dart';
+// ignore: implementation_imports, invalid_use_of_internal_member
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_core/amplify_core.dart';
 import 'package:amplify_secure_storage/amplify_secure_storage.dart';
 

packages/auth/amplify_auth_cognito/lib/src/credentials/legacy_credential_provider_android.dart

@@ -1,13 +1,13 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-// ignore_for_file: implementation_imports
+// ignore_for_file: implementation_imports, invalid_use_of_internal_member
 
 import 'package:amplify_auth_cognito/src/credentials/legacy_credential_store_data_extension.dart';
 import 'package:amplify_auth_cognito/src/native_auth_plugin.g.dart';
 import 'package:amplify_auth_cognito_dart/src/credentials/legacy_credential_provider.dart';
 import 'package:amplify_auth_cognito_dart/src/state/cognito_state_machine.dart';
-import 'package:amplify_auth_cognito_dart/src/state/state/credential_store_state.dart';
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_core/src/config/auth/cognito/credentials_provider.dart';
 import 'package:amplify_core/src/config/auth/cognito/oauth.dart';
 import 'package:amplify_core/src/config/auth/cognito/user_pool.dart';

packages/auth/amplify_auth_cognito/lib/src/credentials/legacy_credential_provider_impl.dart

@@ -9,8 +9,8 @@ import 'package:amplify_auth_cognito/src/credentials/legacy_credential_provider_
 import 'package:amplify_auth_cognito_dart/src/credentials/legacy_credential_provider.dart';
 // ignore: implementation_imports
 import 'package:amplify_auth_cognito_dart/src/state/cognito_state_machine.dart';
-// ignore: implementation_imports
-import 'package:amplify_auth_cognito_dart/src/state/state/credential_store_state.dart';
+// ignore: implementation_imports, invalid_use_of_internal_member
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_core/amplify_core.dart';
 
 /// {@template amplify_auth_cognito.legacy_credential_provider_impl}

packages/auth/amplify_auth_cognito/lib/src/credentials/legacy_credential_provider_ios.dart

@@ -11,8 +11,8 @@ import 'package:amplify_auth_cognito_dart/amplify_auth_cognito_dart.dart';
 import 'package:amplify_auth_cognito_dart/src/credentials/legacy_credential_provider.dart';
 // ignore: implementation_imports
 import 'package:amplify_auth_cognito_dart/src/state/cognito_state_machine.dart';
-// ignore: implementation_imports
-import 'package:amplify_auth_cognito_dart/src/state/state/credential_store_state.dart';
+// ignore: implementation_imports, invalid_use_of_internal_member
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_flutter/amplify_flutter.dart';
 import 'package:async/async.dart';
 

packages/auth/amplify_auth_cognito/lib/src/credentials/legacy_credential_store_data_extension.dart

@@ -3,8 +3,8 @@
 
 import 'package:amplify_auth_cognito/amplify_auth_cognito.dart';
 import 'package:amplify_auth_cognito/src/native_auth_plugin.g.dart';
-// ignore: implementation_imports
-import 'package:amplify_auth_cognito_dart/src/state/state/credential_store_state.dart';
+// ignore: implementation_imports, invalid_use_of_internal_member
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_core/amplify_core.dart';
 
 /// {@template amplify_auth_cognito.legacy_credential_store_data_extension}

packages/auth/amplify_auth_cognito/lib/src/flows/hosted_ui/hosted_ui_platform_flutter.dart

@@ -13,8 +13,8 @@ import 'package:amplify_auth_cognito_dart/src/flows/hosted_ui/hosted_ui_platform
     as io;
 // ignore: implementation_imports
 import 'package:amplify_auth_cognito_dart/src/model/hosted_ui/oauth_parameters.dart';
-// ignore: implementation_imports
-import 'package:amplify_auth_cognito_dart/src/state/event/hosted_ui_event.dart';
+// ignore: implementation_imports, invalid_use_of_internal_member
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_core/amplify_core.dart';
 import 'package:flutter/services.dart';
 

packages/auth/amplify_auth_cognito_dart/example/integration_test/hosted_ui_web_test.dart

@@ -8,7 +8,8 @@ import 'dart:io';
 import 'package:amplify_auth_cognito_dart/amplify_auth_cognito_dart.dart';
 // ignore: invalid_use_of_internal_member,implementation_imports
 import 'package:amplify_auth_cognito_dart/src/credentials/cognito_keys.dart';
-import 'package:amplify_auth_cognito_dart/src/state/state/credential_store_state.dart';
+// ignore: invalid_use_of_internal_member,implementation_imports
+import 'package:amplify_auth_cognito_dart/src/state/state.dart';
 import 'package:amplify_auth_cognito_test/amplify_auth_cognito_test.dart';
 import 'package:amplify_auth_cognito_test/hosted_ui/hosted_ui_common.dart';
 import 'package:amplify_core/amplify_core.dart';