feat: ignoreReassignmentError configuration

lib/get_it.dart

@@ -151,6 +151,10 @@ abstract class GetIt {
  /// If you really need to you can disable the asserts by setting[allowReassignment]= true
  bool allowReassignment = false;
 
+ /// By default it's throws error when [allowReassignment]= false. and trying to register same type
+ /// If you really need, you can disable the Asserts / Errror by setting[ignoreReassignmentError]= true
+ bool ignoreReassignmentError = false;
+
  /// Till V7.6.7 GetIt didn't allow to register multiple instances of the same type.
  /// if you want to register multiple instances of the same type you can enable this
  /// and use `getAll()` to retrieve all instances of that parent type

lib/get_it_impl.dart

@@ -375,6 +375,11 @@ class _GetItImplementation implements GetIt {
  @override
  bool allowReassignment = false;
 
+ /// By default it's throws error when [allowReassignment]= false. and trying to register same type
+ /// If you really need, you can disable the Asserts / Errror by setting[ignoreReassignmentError]= true
+ @override
+ bool ignoreReassignmentError = false;
+
  /// Is used by several other functions to retrieve the correct [_ServiceFactory]
  _ServiceFactory<T, dynamic, dynamic>?
  _findFirstFactoryByNameAndTypeOrNull<T extends Object>(
@@ -1027,19 +1032,31 @@ class _GetItImplementation implements GetIt {
  if (instanceName != null) {
  throwIf(
  existingTypeRegistration.namedFactories.containsKey(instanceName) &&
- !allowReassignment,
+ !allowReassignment &&
+ !ignoreReassignmentError,
  ArgumentError(
  'Object/factory with name $instanceName and '
  'type $T is already registered inside GetIt. ',
  ),
  );
+
+ /// skip registration
+ if (ignoreReassignmentError && !allowReassignment) {
+ return;
+ }
  } else {
  if (existingTypeRegistration.factories.isNotEmpty) {
  throwIfNot(
  allowReassignment ||
- GetIt.allowRegisterMultipleImplementationsOfoneType,
+ GetIt.allowRegisterMultipleImplementationsOfoneType ||
+ ignoreReassignmentError,
  ArgumentError('Type $T is already registered inside GetIt. '),
  );
+
+ /// skip registration
+ if (ignoreReassignmentError && !allowReassignment) {
+ return;
+ }
  }
  }
  }

test/ignore_error_test.dart

@@ -0,0 +1,57 @@
+import 'package:get_it/get_it.dart';
+import 'package:test/test.dart';
+
+void main() {
+ test(' Throws ArgumentError ', () async {
+ final getIt = GetIt.instance;
+ getIt.allowReassignment = false;
+ getIt.ignoreReassignmentError = false;
+ getIt.reset();
+ getIt.registerSingleton<DataStore>(MockDataStore());
+
+ expect(
+ () => getIt.registerSingleton<DataStore>(RemoteDataStore()),
+ throwsArgumentError,
+ );
+ });
+
+ test(' replaces dependency safely ', () async {
+ final getIt = GetIt.instance;
+ getIt.reset();
+ getIt.allowReassignment = true;
+ getIt.ignoreReassignmentError = false;
+ getIt.registerSingleton<DataStore>(MockDataStore());
+ getIt.registerSingleton<DataStore>(RemoteDataStore());
+
+ expect(getIt<DataStore>(), isA<RemoteDataStore>());
+ });
+
+ test(' Ignores ReassignmentError ', () async {
+ final getIt = GetIt.instance;
+ getIt.reset();
+ getIt.allowReassignment = false;
+ getIt.ignoreReassignmentError = true;
+ getIt.registerSingleton<DataStore>(MockDataStore());
+ final remoteDataStore = RemoteDataStore();
+ getIt.registerSingleton<DataStore>(remoteDataStore);
+
+ expect(getIt<DataStore>(), isA<MockDataStore>());
+ });
+
+ test(' does not care about [ignoreReassignmentError] varibale ', () async {
+ final getIt = GetIt.instance;
+ getIt.reset();
+ getIt.allowReassignment = true;
+ getIt.ignoreReassignmentError = true;
+ getIt.registerSingleton<DataStore>(MockDataStore());
+ getIt.registerSingleton<DataStore>(RemoteDataStore());
+
+ expect(getIt<DataStore>(), isA<RemoteDataStore>());
+ });
+}
+
+abstract class DataStore {}
+
+class RemoteDataStore implements DataStore {}
+
+class MockDataStore implements DataStore {}