diff --git a/CHANGELOG.md b/CHANGELOG.md
index 511eb2b..806b3f7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 2.0.6
+- Fix: class parse on wasm.
+
 ## 2.0.5
 - Fix: replaceInstance now dont throw errors.
 
diff --git a/lib/src/bind.dart b/lib/src/bind.dart
index ac6a535..4baa127 100644
--- a/lib/src/bind.dart
+++ b/lib/src/bind.dart
@@ -1,6 +1,7 @@
 // ignore_for_file: public_member_api_docs
 
 import 'package:auto_injector/auto_injector.dart';
+import 'package:meta/meta.dart';
 
 enum BindType {
   instance,
@@ -58,6 +59,32 @@ class Bind<T> {
     );
   }
 
+  /// This is used for testing different environments like wasm, js, macos, etc.
+  ///
+  /// It's not recommended to use this in production code.
+  @visibleForTesting
+  factory Bind.fromConstructorString({
+    required Function constructor,
+    required String constructorString,
+    required BindType type,
+    BindConfig<T>? config,
+    T? instance,
+    String? key,
+  }) {
+    final className = _resolveClassName<T>(constructorString);
+    final params = _extractParams(constructorString);
+
+    return Bind<T>._(
+      constructor: constructor,
+      className: (key != null) ? null : className,
+      params: params,
+      type: type,
+      config: config,
+      instance: instance,
+      key: key,
+    );
+  }
+
   factory Bind.empty(String className) {
     return Bind<T>._(
       constructor: () => null,
@@ -194,7 +221,7 @@ class Bind<T> {
         );
       }).toList();
 
-      params.addAll(allParam);
+      params.insertAll(0, allParam);
     }
 
     return params;
@@ -205,7 +232,17 @@ class Bind<T> {
     final isDynamicOrObjectType = ['dynamic', 'Object'].contains(typeName);
     if (!isDynamicOrObjectType) return typeName;
 
-    final className = constructorString.split(' => ').last;
-    return className;
+    final classNameRegex = RegExp(' => (.*) from: | => (.*) from | => (.*)');
+    final classNameMatch = classNameRegex.firstMatch(constructorString);
+    final className = classNameMatch?.group(1) ??
+        classNameMatch?.group(2) ??
+        classNameMatch?.group(3);
+    if (className == null) {
+      throw Exception(
+        'Unable to resolve class name from constructor: $constructorString',
+      );
+    }
+    // remove generics
+    return className.replaceAll(RegExp('<.*>'), '');
   }
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index 2d67ae9..7800a8b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: auto_injector
 description: Automatic Dependency Injection System, but without build_runner :)
-version: 2.0.5
+version: 2.0.6
 repository: https://github.com/Flutterando/auto_injector
 
 environment:
diff --git a/test/src/platform_specifics_test.dart b/test/src/platform_specifics_test.dart
new file mode 100644
index 0000000..8977fc5
--- /dev/null
+++ b/test/src/platform_specifics_test.dart
@@ -0,0 +1,148 @@
+import 'package:auto_injector/auto_injector.dart';
+import 'package:auto_injector/src/bind.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('Class1', () {
+    ValidationUtils.validateClass1(Class1.macos);
+    ValidationUtils.validateClass1(Class1.js);
+    ValidationUtils.validateClass1(Class1.wasm);
+  });
+  test('Class2', () {
+    ValidationUtils.validateClass2(Class2.macos);
+    ValidationUtils.validateClass2(Class2.js);
+    ValidationUtils.validateClass2(Class2.wasm);
+  });
+  test('Class3', () {
+    ValidationUtils.validateClass3(Class3.macos);
+    ValidationUtils.validateClass3(Class3.js);
+    ValidationUtils.validateClass3(Class3.wasm);
+  });
+}
+
+class ValidationUtils {
+  static void validateClass1(String constructorString) {
+    final classData = Bind.fromConstructorString(
+      constructorString: constructorString,
+      constructor: Class1.new,
+      type: BindType.singleton,
+    );
+    expect(classData.className, 'Class1');
+    expect(classData.params.length, 3);
+    expect(classData.params[0].className, 'int');
+    expect(classData.params[0].runtimeType, PositionalParam);
+    expect(classData.params[0].isNullable, false);
+    expect(classData.params[0].isRequired, true);
+
+    expect(classData.params[1], isA<NamedParam>());
+    final param1 = classData.params[1] as NamedParam;
+    expect(param1.named, const Symbol('var2'));
+    expect(param1.className, 'int');
+    expect(param1.isNullable, false);
+    expect(param1.isRequired, false);
+
+    expect(classData.params[2].runtimeType, NamedParam);
+    final param2 = classData.params[2] as NamedParam;
+    expect(param2.named, const Symbol('var3'));
+    expect(param2.className, 'bool');
+    expect(param2.isNullable, true);
+    expect(param2.isRequired, false);
+  }
+
+  static void validateClass2(String constructorString) {
+    final classData = Bind.fromConstructorString(
+      constructorString: constructorString,
+      constructor: Class1.new,
+      type: BindType.singleton,
+    );
+    expect(classData.className, 'Class2');
+    expect(classData.params.length, 3);
+    expect(classData.params[0].className, 'int');
+    expect(classData.params[0].runtimeType, PositionalParam);
+    expect(classData.params[0].isNullable, false);
+    expect(classData.params[0].isRequired, true);
+
+    expect(classData.params[1], isA<NamedParam>());
+    final param1 = classData.params[1] as NamedParam;
+    expect(param1.named, const Symbol('var2'));
+    expect(param1.className, 'int');
+    expect(param1.isNullable, false);
+    expect(param1.isRequired, false);
+
+    expect(classData.params[2].runtimeType, NamedParam);
+    final param2 = classData.params[2] as NamedParam;
+    expect(param2.named, const Symbol('var3'));
+    expect(param2.className, 'bool');
+    expect(param2.isNullable, true);
+    expect(param2.isRequired, false);
+  }
+
+  static void validateClass3(String constructorString) {
+    final classData = Bind.fromConstructorString(
+      constructorString: constructorString,
+      constructor: Class1.new,
+      type: BindType.singleton,
+    );
+    expect(classData.className, 'Class3');
+    expect(classData.params.length, 3);
+    expect(classData.params[0].runtimeType, PositionalParam);
+    final param0 = classData.params[0] as PositionalParam;
+    expect(param0.className, 'int');
+    expect(param0.isNullable, false);
+    expect(param0.isRequired, true);
+
+    expect(classData.params[1], isA<NamedParam>());
+    final param1 = classData.params[1] as NamedParam;
+    expect(param1.named, const Symbol('var2'));
+    expect(param1.className, 'int');
+    expect(param1.isNullable, false);
+    expect(param1.isRequired, false);
+
+    expect(classData.params[2].runtimeType, NamedParam);
+    final param2 = classData.params[2] as NamedParam;
+    expect(param2.named, const Symbol('var3'));
+    expect(param2.className, 'bool');
+    expect(param2.isNullable, true);
+    expect(param2.isRequired, false);
+  }
+}
+
+class Class1 {
+  final int var1;
+  final int var2;
+  final bool? var3;
+
+  const Class1(this.var1, {this.var2 = 0, this.var3});
+  static String js =
+      "Closure: (int, {int var2, bool? var3}) => Class1 from: ['_#new#tearOff'](var1, opts) {";
+  static String wasm = 'Closure: (int, {int var2, bool? var3}) => Class1';
+  static String macos =
+      "Closure: (int, {int var2, bool? var3}) => Class1 from Function 'Class1.': static.";
+}
+
+class Class2 {
+  final int var1;
+  final int var2;
+  final bool? var3;
+
+  Class2(this.var1, {this.var2 = 0, this.var3});
+  static String js =
+      "Closure: (int, {int var2, bool? var3}) => Class2 from: ['_#new#tearOff'](var1, opts) {";
+  static String wasm = 'Closure: (int, {int var2, bool? var3}) => Class2';
+  static String macos =
+      "Closure: (int, {int var2, bool? var3}) => Class2 from Function 'Class2.': static.";
+}
+
+class Class3<T extends Object, Y extends Map<String, dynamic>> {
+  final int var1;
+  final int var2;
+  final bool? var3;
+
+  Class3(this.var1, {this.var2 = 0, this.var3});
+  static String js =
+      "Closure: <T1 extends Object>(int, {int var2, bool? var3}) => Class3<T1> from: ['_#new#tearOff'](T, var1, opts) {";
+  static String wasm =
+      'Closure: <X0 extends Object>(int, {int var2, bool? var3}) => Class3<X0>';
+  static String macos =
+      "Closure: <Y0 extends Object>(int, {int var2, bool? var3}) => Class3<Y0> from Function 'Class3.': static.";
+}