fix equatable

lib/src/core/array.dart

@@ -1,14 +1,13 @@
 import 'dart:ffi' as ffi;
 
-import 'package:equatable/equatable.dart';
 import 'package:ffi/ffi.dart';
 
 import 'base.dart';
 
 // Dart does not support multiple upper bounds for T now, if they implement it, this can be simplified.
 // https://github.com/dart-lang/language/issues/2709
 abstract class NativeArray<T extends ffi.NativeType, P extends num>
-    with EquatableMixin
+    with ComparableMixin
     implements ffi.Finalizable, INativeArray<P> {
   NativeArray([this.length = 0]);
 

lib/src/core/base.dart

@@ -55,23 +55,25 @@ final CFFI = cvg.CvNative(loadNativeLibrary());
 // base structures
 abstract class CvObject<T extends ffi.NativeType> implements ffi.Finalizable {}
 
-abstract class ICvStruct<T extends ffi.Struct> extends CvObject<T> {
-  ICvStruct.fromPointer(this.ptr);
-
-  ffi.Pointer<T> ptr;
-  T get ref;
-
+mixin ComparableMixin {
   List<Object?> get props;
 
   @override
   // ignore: hash_and_equals
   bool operator ==(Object other) {
-    if (other is! ICvStruct) return false;
+    if (other is! ComparableMixin) return false;
     if (props.length != other.props.length) return false;
     return props.indexed.every((e) => other.props[e.$1] == e.$2);
   }
 }
 
+abstract class ICvStruct<T extends ffi.Struct> extends CvObject<T> with ComparableMixin {
+  ICvStruct.fromPointer(this.ptr);
+
+  ffi.Pointer<T> ptr;
+  T get ref;
+}
+
 abstract class CvStruct<T extends ffi.Struct> extends ICvStruct<T> {
   CvStruct.fromPointer(super.ptr) : super.fromPointer();
 }

lib/src/core/error_code.dart

@@ -11,9 +11,9 @@
     LICENSE: Apache-2.0
 */
 
-import 'package:equatable/equatable.dart';
+import 'base.dart';
 
-class ErrorCode with EquatableMixin {
+class ErrorCode with ComparableMixin {
   /// @brief everithing is ok CV_StsOk
   static final ErrorCode StsOk = ErrorCode(0);
 

lib/src/core/mat_type.dart

@@ -2,10 +2,10 @@
 
 library cv;
 
-import 'package:equatable/equatable.dart';
+import 'base.dart';
 import 'exception.dart';
 
-class MatType extends Equatable {
+class MatType with ComparableMixin {
   final int value;
 
   const MatType(this.value);

lib/src/core/vec.dart

@@ -4,13 +4,12 @@ import 'dart:convert';
 import 'dart:ffi' as ffi;
 import 'dart:typed_data';
 
-import 'package:equatable/equatable.dart';
 import 'package:ffi/ffi.dart';
 
 import '../opencv.g.dart' as cvg;
 import 'base.dart';
 
-abstract class Vec<T> with IterableMixin<T>, EquatableMixin implements ffi.Finalizable {
+abstract class Vec<T> with IterableMixin<T>, ComparableMixin implements ffi.Finalizable {
   @override
   int get length;
 

pubspec.yaml

@@ -11,10 +11,10 @@ dependencies:
   flutter:
     sdk: flutter
   plugin_platform_interface: ^2.1.8
-  ffi: ^2.1.0
+  ffi: ^2.1.2
   path: ^1.9.0
   args: ^2.5.0
-  archive: ^3.5.1
+  archive: ^3.6.1
   stack_trace: ^1.11.1
 
 dev_dependencies: