move exceptions into their own package.

lib/kdbx.dart

@@ -10,6 +10,7 @@ export 'src/kdbx_consts.dart';
 export 'src/kdbx_custom_data.dart';
 export 'src/kdbx_dao.dart' show KdbxDao;
 export 'src/kdbx_entry.dart' show KdbxEntry, KdbxKey, KdbxKeyCommon;
+export 'src/kdbx_exceptions.dart';
 export 'src/kdbx_file.dart';
 export 'src/kdbx_format.dart'
     show
@@ -23,13 +24,7 @@ export 'src/kdbx_format.dart'
         KeyFileCredentials,
         PasswordCredentials;
 export 'src/kdbx_group.dart' show KdbxGroup;
-export 'src/kdbx_header.dart'
-    show
-        KdbxException,
-        KdbxInvalidKeyException,
-        KdbxCorruptedFileException,
-        KdbxUnsupportedException,
-        KdbxVersion;
+export 'src/kdbx_header.dart' show KdbxVersion;
 export 'src/kdbx_meta.dart';
 export 'src/kdbx_object.dart'
     show

lib/src/kdbx_entry.dart

@@ -5,6 +5,7 @@ import 'package:kdbx/src/crypto/protected_value.dart';
 import 'package:kdbx/src/internal/extension_utils.dart';
 import 'package:kdbx/src/kdbx_binary.dart';
 import 'package:kdbx/src/kdbx_consts.dart';
+import 'package:kdbx/src/kdbx_exceptions.dart';
 import 'package:kdbx/src/kdbx_file.dart';
 import 'package:kdbx/src/kdbx_format.dart';
 import 'package:kdbx/src/kdbx_group.dart';

lib/src/kdbx_exceptions.dart

@@ -0,0 +1,36 @@
+class KdbxException implements Exception {}
+
+class KdbxInvalidKeyException implements KdbxException {}
+
+class KdbxCorruptedFileException implements KdbxException {
+  KdbxCorruptedFileException([this.message]);
+
+  final String? message;
+
+  @override
+  String toString() {
+    return 'KdbxCorruptedFileException{message: $message}';
+  }
+}
+
+class KdbxUnsupportedException implements KdbxException {
+  KdbxUnsupportedException(this.hint);
+
+  final String hint;
+
+  @override
+  String toString() {
+    return 'KdbxUnsupportedException{hint: $hint}';
+  }
+}
+
+class KdbxInvalidFileStructure implements KdbxException {
+  KdbxInvalidFileStructure(this.message);
+
+  final String message;
+
+  @override
+  String toString() {
+    return 'KdbxInvalidFileStructure{$message}';
+  }
+}

lib/src/kdbx_file.dart

@@ -5,6 +5,7 @@ import 'package:collection/collection.dart';
 import 'package:kdbx/src/crypto/protected_value.dart';
 import 'package:kdbx/src/kdbx_consts.dart';
 import 'package:kdbx/src/kdbx_dao.dart';
+import 'package:kdbx/src/kdbx_exceptions.dart';
 import 'package:kdbx/src/kdbx_format.dart';
 import 'package:kdbx/src/kdbx_group.dart';
 import 'package:kdbx/src/kdbx_header.dart';

lib/src/kdbx_header.dart

@@ -4,6 +4,7 @@ import 'package:crypto/crypto.dart' as crypto;
 import 'package:kdbx/src/crypto/key_encrypter_kdf.dart';
 import 'package:kdbx/src/internal/consts.dart';
 import 'package:kdbx/src/kdbx_binary.dart';
+import 'package:kdbx/src/kdbx_exceptions.dart';
 import 'package:kdbx/src/kdbx_var_dictionary.dart';
 import 'package:kdbx/src/utils/byte_utils.dart';
 import 'package:logging/logging.dart';
@@ -557,43 +558,6 @@ class KdbxHeader {
   }
 }
 
-class KdbxException implements Exception {}
-
-class KdbxInvalidKeyException implements KdbxException {}
-
-class KdbxCorruptedFileException implements KdbxException {
-  KdbxCorruptedFileException([this.message]);
-
-  final String? message;
-
-  @override
-  String toString() {
-    return 'KdbxCorruptedFileException{message: $message}';
-  }
-}
-
-class KdbxUnsupportedException implements KdbxException {
-  KdbxUnsupportedException(this.hint);
-
-  final String hint;
-
-  @override
-  String toString() {
-    return 'KdbxUnsupportedException{hint: $hint}';
-  }
-}
-
-class KdbxInvalidFileStructure implements KdbxException {
-  KdbxInvalidFileStructure(this.message);
-
-  final String message;
-
-  @override
-  String toString() {
-    return 'KdbxInvalidFileStructure{$message}';
-  }
-}
-
 class HashedBlockReader {
   static const BLOCK_SIZE = 1024 * 1024;
   static const HASH_SIZE = 32;

lib/src/kdbx_meta.dart

@@ -5,6 +5,7 @@ import 'package:collection/collection.dart';
 import 'package:kdbx/src/internal/extension_utils.dart';
 import 'package:kdbx/src/kdbx_binary.dart';
 import 'package:kdbx/src/kdbx_custom_data.dart';
+import 'package:kdbx/src/kdbx_exceptions.dart';
 import 'package:kdbx/src/kdbx_format.dart';
 import 'package:kdbx/src/kdbx_header.dart';
 import 'package:kdbx/src/kdbx_object.dart';

lib/src/kdbx_xml.dart

@@ -4,6 +4,7 @@ import 'dart:typed_data';
 import 'package:clock/clock.dart';
 import 'package:collection/collection.dart' show IterableExtension;
 import 'package:kdbx/src/kdbx_consts.dart';
+import 'package:kdbx/src/kdbx_exceptions.dart';
 import 'package:kdbx/src/kdbx_format.dart';
 import 'package:kdbx/src/kdbx_header.dart';
 import 'package:kdbx/src/kdbx_object.dart';