V4.5.0

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 4.5.0
+
+- Update dependencies.
+- Important Notice: This is the final version supporting Dart v2. The next release will require Dart v3.3 or higher.
+
 ## 4.4.0
 
 - Update dependencies.

analysis_options.yaml

@@ -1,26 +1,9 @@
-# This file configures the analyzer to use the lint rule set from `package:lint`
-
-include: package:flutter_lints/flutter.yaml # For production apps
-# include: package:lint/casual.yaml # For code samples, hackathons and other non-production code
-# include: package:lint/package.yaml # Use this for packages with public API
-
-
-# You might want to exclude auto-generated files from dart analysis
-analyzer:
-  exclude:
-    #- '**.freezed.dart'
-    #- '**.g.dart'
-
-# You can customize the lint rules set to your own liking. A list of all rules
-# can be found at https://dart-lang.github.io/linter/lints/options/options.html
+# include: package:lints/recommended.yaml
+include: package:flutter_lints/flutter.yaml
+# Uncomment the following section to specify additional rules.
 linter:
   rules:
-    # Util classes are awesome!
-    # avoid_classes_with_only_static_members: false
-
-    # Make constructors the first thing in every class
-    # sort_constructors_first: true
-
-    # Choose wisely, but you don't have to
-    # prefer_double_quotes: true
-    # prefer_single_quotes: true
+    prefer_final_locals: true        # Warns when a local variable could be final
+    prefer_final_in_for_each: true   # Warns when a forEach variable could be final
+    prefer_const_constructors: true  # Warns when a constructor could be const
+    prefer_const_declarations: true  # Warns when a declaration could be const

example/pubspec.yaml

@@ -28,9 +28,9 @@ dependencies:
     path: ../
   web_socket_channel: ^2.4.0
   http: ^1.1.0
-  blockchain_utils:
-    path: ../../blockchain_utils
-  # blockchain_utils: ^3.4.0
+  # blockchain_utils:
+  #   path: ../../blockchain_utils
+  blockchain_utils: ^3.6.0
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2

lib/ada/src/address/era/shelly/core/shelly_address.dart

@@ -43,7 +43,7 @@ abstract class ADAShellyAddress extends ADAAddress {
 
   /// Deserializes a CBOR object into an ADAShellyAddress instance.
   static T deserialize<T extends ADAShellyAddress>(CborBytesValue cbor) {
-    ADAAddress address = ADAAddress.deserialize(cbor);
+    final ADAAddress address = ADAAddress.deserialize(cbor);
     if (address is! T) {
       throw ADAPluginException("Invalid address type.", details: {
         "Excepted": "$T",

lib/ada/src/models/metadata/utils/metadata_utils.dart

@@ -159,7 +159,7 @@ class TransactionMetadataUtils {
 
   static TransactionMetadata _encodeMap(
       Map value, MetadataJsonSchema jsonSchema) {
-    Map<TransactionMetadata, TransactionMetadata> values = {};
+    final Map<TransactionMetadata, TransactionMetadata> values = {};
     for (final i in value.entries) {
       TransactionMetadata? key;
       if (jsonSchema == MetadataJsonSchema.basicConversions &&

lib/ada/src/models/plutus/plutus/types/bytes.dart

@@ -22,7 +22,7 @@ class PlutusBytes extends PlutusData {
   @override
   CborObject toCbor() {
     if (value.length > PlutusDataUtils.chunkSize) {
-      List<List<int>> chunks = [];
+      final List<List<int>> chunks = [];
       for (var i = 0; i < value.length; i += PlutusDataUtils.chunkSize) {
         chunks.add(value.sublist(
             i,

lib/ada/src/models/plutus/utils/utils.dart

@@ -134,9 +134,9 @@ class PlutusDataUtils {
   }
 
   static PlutusData _encodeMap(Map value, PlutusJsonSchema jsonSchema) {
-    Map<PlutusData, PlutusData> values = {};
+    final Map<PlutusData, PlutusData> values = {};
     for (final i in value.entries) {
-      PlutusData key =
+      final PlutusData key =
           _encodeString(schame: jsonSchema, value: i.key, isKey: true);
       values.addAll({key: parsePlutus(i.value, jsonSchema)});
     }

lib/ada/src/models/transaction/output/models/multi_assets.dart

@@ -68,18 +68,18 @@ class MultiAsset with ADASerialization implements Comparable<MultiAsset> {
   }
 
   BigInt _amount(MultiAsset ma, PolicyID pid, AssetName aname) {
-    BigInt? amount = ma.assets[pid]?.assets[aname];
+    final BigInt? amount = ma.assets[pid]?.assets[aname];
     return amount ?? BigInt.zero;
   }
 
   bool _compare(MultiAsset lhs, MultiAsset rhs) {
-    for (var entry in lhs.assets.entries) {
-      PolicyID pid = entry.key;
-      Assets? assets = entry.value;
-      for (var assetEntry in assets.assets.entries) {
-        AssetName aname = assetEntry.key;
-        BigInt amount = assetEntry.value;
-        BigInt rhsAmount = _amount(rhs, pid, aname);
+    for (final entry in lhs.assets.entries) {
+      final PolicyID pid = entry.key;
+      final Assets assets = entry.value;
+      for (final assetEntry in assets.assets.entries) {
+        final AssetName aname = assetEntry.key;
+        final BigInt amount = assetEntry.value;
+        final BigInt rhsAmount = _amount(rhs, pid, aname);
         if (amount - rhsAmount > BigInt.zero) {
           return false;
         }

lib/ada/src/provider/blockfrost/models/models/account_summery.dart

@@ -21,13 +21,13 @@ class ADAAccountSummaryResponse {
   });
 
   factory ADAAccountSummaryResponse.fromJson(Map<String, dynamic> json) {
-    var receivedSumList = json['received_sum'] as List;
-    List<ADAAmountResponse> receivedSum = receivedSumList
+    final receivedSumList = json['received_sum'] as List;
+    final List<ADAAmountResponse> receivedSum = receivedSumList
         .map((item) => ADAAmountResponse.fromJson(item))
         .toList();
 
-    var sentSumList = json['sent_sum'] as List;
-    List<ADAAmountResponse> sentSum =
+    final sentSumList = json['sent_sum'] as List;
+    final List<ADAAmountResponse> sentSum =
         sentSumList.map((item) => ADAAmountResponse.fromJson(item)).toList();
 
     return ADAAccountSummaryResponse(

lib/ada/src/provider/blockfrost/models/models/address_summery.dart

@@ -25,8 +25,8 @@ class ADAAddressSummaryResponse {
   });
 
   factory ADAAddressSummaryResponse.fromJson(Map<String, dynamic> json) {
-    var amountList = json['amount'] as List;
-    List<ADAAmountResponse> amounts =
+    final amountList = json['amount'] as List;
+    final List<ADAAmountResponse> amounts =
         amountList.map((item) => ADAAmountResponse.fromJson(item)).toList();
 
     return ADAAddressSummaryResponse(

lib/ada/src/provider/blockfrost/models/models/block_address_transactions.dart

@@ -12,8 +12,8 @@ class ADABlockAddressTransactionsResponse {
 
   factory ADABlockAddressTransactionsResponse.fromJson(
       Map<String, dynamic> json) {
-    var transactionsList = json['transactions'] as List;
-    List<String> transactions =
+    final transactionsList = json['transactions'] as List;
+    final List<String> transactions =
         transactionsList.map((item) => item['tx_hash'] as String).toList();
 
     return ADABlockAddressTransactionsResponse(

lib/ada/src/provider/blockfrost/utils/blockforest_provider_utils.dart

@@ -1,9 +1,9 @@
 class BlockforestProviderUtils {
   static final RegExp _pathParamRegex = RegExp(r':\w+');
   static List<String> extractParams(String url) {
-    Iterable<Match> matches = _pathParamRegex.allMatches(url);
-    List<String> params = [];
-    for (Match match in matches) {
+    final Iterable<Match> matches = _pathParamRegex.allMatches(url);
+    final List<String> params = [];
+    for (final Match match in matches) {
       params.add(match.group(0)!);
     }
     return List<String>.unmodifiable(params);

lib/ethereum/src/models/fee_history.dart

@@ -53,22 +53,26 @@ class FeeHistory {
   FeeHistorical toFee() {
     FeeHistorical toPriority(List<_FeeHistorical> priorities, BigInt baseFee) {
       BigInt avg(List<BigInt> arr) {
-        BigInt sum = arr.reduce((a, v) => a + v);
+        final BigInt sum = arr.reduce((a, v) => a + v);
         return sum ~/ BigInt.from(arr.length);
       }
 
-      BigInt slow = avg(priorities.map((b) {
+      final BigInt slow = avg(priorities.map((b) {
         return b.priorityFeePerGas[0];
       }).toList());
-      BigInt average =
+      final BigInt average =
           avg(priorities.map((b) => b.priorityFeePerGas[1]).toList());
-      BigInt fast = avg(priorities.map((b) => b.priorityFeePerGas[2]).toList());
+      final BigInt fast =
+          avg(priorities.map((b) => b.priorityFeePerGas[2]).toList());
       return FeeHistorical(
           slow: slow, high: fast, normal: average, baseFee: baseFee);
     }
 
-    int minLength = [gasUsedRatio.length, baseFeePerGas.length, reward.length]
-        .reduce((min, current) => current < min ? current : min);
+    final int minLength = [
+      gasUsedRatio.length,
+      baseFeePerGas.length,
+      reward.length
+    ].reduce((min, current) => current < min ? current : min);
     final List<_FeeHistorical> historical = List.generate(
         minLength,
         (index) => _FeeHistorical(

lib/ethereum/src/rlp/decode.dart

@@ -15,10 +15,10 @@ class RLPDecoder {
   /// Decode an RLP-encoded array.
   static _Decoded _decodeArray(
       List<int> data, int offset, int childOffset, int length) {
-    List<dynamic> result = [];
+    final List<dynamic> result = [];
 
     while (childOffset < offset + 1 + length) {
-      _Decoded decoded = _decode(data, childOffset);
+      final _Decoded decoded = _decode(data, childOffset);
 
       result.add(decoded.result);
 
@@ -38,22 +38,22 @@ class RLPDecoder {
     }
 
     if (data[offset] >= 0xf8) {
-      int lengthLength = data[offset] - 0xf7;
-      int length = _decodeLength(data, offset + 1, lengthLength);
+      final int lengthLength = data[offset] - 0xf7;
+      final int length = _decodeLength(data, offset + 1, lengthLength);
       return _decodeArray(
           data, offset, offset + 1 + lengthLength, lengthLength + length);
     } else if (data[offset] >= 0xc0) {
-      int length = data[offset] - 0xc0;
+      final int length = data[offset] - 0xc0;
       return _decodeArray(data, offset, offset + 1, length);
     } else if (data[offset] >= 0xb8) {
-      int lengthLength = data[offset] - 0xb7;
-      int length = _decodeLength(data, offset + 1, lengthLength);
-      List<int> result = data.sublist(
+      final int lengthLength = data[offset] - 0xb7;
+      final int length = _decodeLength(data, offset + 1, lengthLength);
+      final List<int> result = data.sublist(
           offset + 1 + lengthLength, offset + 1 + lengthLength + length);
       return _Decoded(consumed: (1 + lengthLength + length), result: result);
     } else if (data[offset] >= 0x80) {
-      int length = data[offset] - 0x80;
-      List<int> result = data.sublist(offset + 1, offset + 1 + length);
+      final int length = data[offset] - 0x80;
+      final List<int> result = data.sublist(offset + 1, offset + 1 + length);
       return _Decoded(consumed: (1 + length), result: result);
     }
 
@@ -63,7 +63,7 @@ class RLPDecoder {
   /// Decode an RLP-encoded list of items.
   static List<dynamic> decode(List<int> data) {
     try {
-      _Decoded decoded = _decode(data, 0);
+      final _Decoded decoded = _decode(data, 0);
       if (decoded.consumed != data.length) {
         throw const ETHPluginException("invalid rpl payload bytes");
       }

lib/ethereum/src/rlp/encode.dart

@@ -2,7 +2,7 @@
 class RLPEncoder {
   /// Encodes an integer value into its RLP representation.
   static List<int> _encodeArray(int value) {
-    List<int> result = [];
+    final List<int> result = [];
     while (value != 0) {
       result.insert(0, value & 0xff);
       value >>= 8;
@@ -13,7 +13,7 @@ class RLPEncoder {
   /// Recursive encoding of the given object using RLP.
   static List<int> _encode(List<dynamic> object) {
     if (object is! List<int>) {
-      List<int> payload = [];
+      final List<int> payload = [];
       for (final child in object) {
         payload.addAll(_encode(child));
       }
@@ -23,12 +23,12 @@ class RLPEncoder {
         return payload;
       }
 
-      List<int> length = _encodeArray(payload.length);
+      final List<int> length = _encodeArray(payload.length);
       length.insert(0, 0xf7 + length.length);
       return [...length, ...payload];
     }
 
-    List<int> data = List.from(object, growable: true);
+    final List<int> data = List.from(object, growable: true);
 
     if (data.length == 1 && data[0] <= 0x7f) {
       return data;
@@ -37,7 +37,7 @@ class RLPEncoder {
       return data;
     }
 
-    List<int> length = _encodeArray(data.length);
+    final List<int> length = _encodeArray(data.length);
     length.insert(0, 0xb7 + length.length);
 
     return [...length, ...data];

lib/ethereum/src/transaction/eth_transaction.dart

@@ -99,9 +99,9 @@ class _ETHTransactionUtils {
   ///
   /// Returns an [ETHTransaction] object representing the legacy transaction.
   static ETHTransaction _fromLegacy(List<dynamic> decode) {
-    int nonce = IntUtils.fromBytes(decode[0]);
-    BigInt gasPrice = BigintUtils.fromBytes(decode[1]);
-    BigInt gasLimit = BigintUtils.fromBytes(decode[2]);
+    final int nonce = IntUtils.fromBytes(decode[0]);
+    final BigInt gasPrice = BigintUtils.fromBytes(decode[1]);
+    final BigInt gasLimit = BigintUtils.fromBytes(decode[2]);
     final ETHAddress? to =
         (decode[3] as List).isEmpty ? null : ETHAddress.fromBytes(decode[3]);
     final value = BigintUtils.fromBytes(decode[4]);
@@ -137,9 +137,9 @@ class _ETHTransactionUtils {
   /// Converts the decoded data to an EIP-2930 transaction.
   static ETHTransaction _fromEIP2930(List<dynamic> decode) {
     final BigInt chainId = BigintUtils.fromBytes(decode[0]);
-    int nonce = IntUtils.fromBytes(decode[1]);
-    BigInt gasPrice = BigintUtils.fromBytes(decode[2]);
-    BigInt gasLimit = BigintUtils.fromBytes(decode[3]);
+    final int nonce = IntUtils.fromBytes(decode[1]);
+    final BigInt gasPrice = BigintUtils.fromBytes(decode[2]);
+    final BigInt gasLimit = BigintUtils.fromBytes(decode[3]);
     final ETHAddress? to =
         (decode[4] as List).isEmpty ? null : ETHAddress.fromBytes(decode[4]);
     final value = BigintUtils.fromBytes(decode[5]);
@@ -173,10 +173,10 @@ class _ETHTransactionUtils {
   /// Converts the decoded data to an EIP-1559 transaction.
   static ETHTransaction _fromEIP1559(List<dynamic> decode) {
     final BigInt chainId = BigintUtils.fromBytes(decode[0]);
-    int nonce = IntUtils.fromBytes(decode[1]);
-    BigInt maxPriorityFeePerGas = BigintUtils.fromBytes(decode[2]);
-    BigInt maxFeePerGas = BigintUtils.fromBytes(decode[3]);
-    BigInt gasLimit = BigintUtils.fromBytes(decode[4]);
+    final int nonce = IntUtils.fromBytes(decode[1]);
+    final BigInt maxPriorityFeePerGas = BigintUtils.fromBytes(decode[2]);
+    final BigInt maxFeePerGas = BigintUtils.fromBytes(decode[3]);
+    final BigInt gasLimit = BigintUtils.fromBytes(decode[4]);
     final ETHAddress? to =
         (decode[5] as List).isEmpty ? null : ETHAddress.fromBytes(decode[5]);
     final value = BigintUtils.fromBytes(decode[6]);
@@ -385,7 +385,7 @@ class ETHTransaction {
   /// Converts the [ETHTransaction] to its EIP-1559 serialized form.
   /// If [sig] is provided, includes the signature fields in the serialization.
   List<int> _toEIP1559([ETHSignature? sig]) {
-    List<List<dynamic>> fields = [
+    final List<List<dynamic>> fields = [
       _ETHTransactionUtils.bigintToBytes(chainId),
       _ETHTransactionUtils.intToBytes(nonce),
       _ETHTransactionUtils.bigintToBytes(maxPriorityFeePerGas!),
@@ -431,7 +431,7 @@ class ETHTransaction {
   /// Converts the [ETHTransaction] to its legacy (pre-EIP-155) serialized form.
   /// If [sig] is provided, includes the signature fields in the serialization.
   List<int> _toLegacy([ETHSignature? sig]) {
-    List<List<int>> fields = [
+    final List<List<int>> fields = [
       _ETHTransactionUtils.intToBytes(nonce),
       _ETHTransactionUtils.bigintToBytes(gasPrice!),
       _ETHTransactionUtils.bigintToBytes(gasLimit),

lib/solana/src/borsh_serialization/core/borsh_serializable.dart

@@ -65,7 +65,7 @@ abstract class LayoutSerializable {
 
   Map<String, dynamic> toJson() {
     final json = serialize()..removeWhere((k, v) => v == null);
-    Map<String, dynamic> toHuman = {};
+    final Map<String, dynamic> toHuman = {};
     for (final i in json.entries) {
       toHuman[i.key] = _toString(i.value);
     }

lib/solana/src/instructions/metaplex/auction_house/accounts/accounts/auction_house.dart

@@ -28,7 +28,7 @@ class _Utils {
   ]);
 
   static List<AuthorityScope> decodeScoops(List<bool> bytes) {
-    List<AuthorityScope> scopes = [];
+    final List<AuthorityScope> scopes = [];
     for (int i = 0; i < AuthorityScope.values.length; i++) {
       if (!bytes[i]) continue;
       scopes.add(AuthorityScope.fromValue(i));

lib/solana/src/instructions/metaplex/auction_house/layouts/instruction/program_layout.dart

@@ -44,7 +44,7 @@ abstract class MetaplexAuctionHouseProgramLayout extends ProgramLayout {
   static ProgramLayout fromBytes(List<int> data) {
     final decode =
         ProgramLayout.decodeAndValidateStruct(layout: _layout, bytes: data);
-    MetaplexAuctionHouseProgramInstruction? instruction =
+    final MetaplexAuctionHouseProgramInstruction? instruction =
         MetaplexAuctionHouseProgramInstruction.getInstruction(
             decode["instruction"]);
 

lib/solana/src/instructions/metaplex/auctioneer/layouts/instruction/program_layout.dart

@@ -19,7 +19,7 @@ abstract class MetaplexAuctioneerProgramLayout extends ProgramLayout {
   static ProgramLayout fromBytes(List<int> data) {
     final decode =
         ProgramLayout.decodeAndValidateStruct(layout: _layout, bytes: data);
-    MetaplexAuctioneerProgramInstruction? instruction =
+    final MetaplexAuctioneerProgramInstruction? instruction =
         MetaplexAuctioneerProgramInstruction.getInstruction(
             decode["instruction"]);