clean(packages): apply dart fix (close #106)

packages/wyatt_http_client/lib/src/utils/convert.dart

@@ -21,7 +21,7 @@ class Convert {
     final buffer = StringBuffer();
     for (final int part in bytes) {
       if (part & 0xff != part) {
-        throw FormatException('Non-byte integer detected');
+        throw const FormatException('Non-byte integer detected');
       }
       buffer.write('${part < 16 ? '0' : ''}${part.toRadixString(16)}');
     }

packages/wyatt_http_client/lib/src/utils/crypto.dart

@@ -21,8 +21,8 @@ import 'package:crypto/crypto.dart';
 class Crypto {
   /// Hash a string using MD5
   static String md5Hash(String data) {
-    final content = Utf8Encoder().convert(data);
-    final md5Crypto = md5;
+    final content = const Utf8Encoder().convert(data);
+    const md5Crypto = md5;
     final digest = md5Crypto.convert(content).toString();
     return digest;
   }

packages/wyatt_http_client/lib/src/utils/delay.dart

@@ -24,9 +24,9 @@ abstract class Delay {
       return Duration.zero;
     }
     final rand = Random();
-    final Duration delayFactor = const Duration(milliseconds: 200);
-    final double randomizationFactor = 0.25;
-    final Duration maxDelay = const Duration(seconds: 30);
+    const Duration delayFactor = Duration(milliseconds: 200);
+    const double randomizationFactor = 0.25;
+    const Duration maxDelay = Duration(seconds: 30);
 
     final rf = randomizationFactor * (rand.nextDouble() * 2 - 1) + 1;
     final exp = min(attempt, 31); // prevent overflows.

packages/wyatt_http_client/lib/src/utils/digest_auth.dart

@@ -19,7 +19,9 @@ import 'dart:math';
 import 'package:wyatt_http_client/src/utils/convert.dart';
 import 'package:wyatt_http_client/src/utils/crypto.dart';
 
-class DigestAuth {
+class DigestAuth { // request counter
+
+  DigestAuth(this.username, this.password);
   String username;
   String password;
 
@@ -30,9 +32,7 @@ class DigestAuth {
   String? _nonce;
   String? _opaque;
 
-  int _nc = 0; // request counter
-
-  DigestAuth(this.username, this.password);
+  int _nc = 0;
 
   /// Splits WWW-Authenticate header into a map.
   Map<String, String>? splitWWWAuthenticateHeader(String header) {
@@ -61,9 +61,7 @@ class DigestAuth {
     return Convert.toHex(values);
   }
 
-  String _formatNonceCount(int nc) {
-    return nc.toRadixString(16).padLeft(8, '0');
-  }
+  String _formatNonceCount(int nc) => nc.toRadixString(16).padLeft(8, '0');
 
   String _computeHA1(
     String realm,
@@ -148,7 +146,7 @@ class DigestAuth {
   }
 
   String getAuthString(String method, Uri url) {
-    final _cnonce = _computeNonce();
+    final cnonce = _computeNonce();
     _nc += 1;
     // if url has query parameters, append query to path
     final path = url.hasQuery ? '${url.path}?${url.query}' : url.path;
@@ -162,7 +160,7 @@ class DigestAuth {
       _qop,
       _opaque,
       _realm!,
-      _cnonce,
+      cnonce,
       _nonce,
       _nc,
       username,
@@ -192,7 +190,5 @@ class DigestAuth {
     }
   }
 
-  bool isReady() {
-    return _nonce != null && (_nc == 0 || _qop != null);
-  }
+  bool isReady() => _nonce != null && (_nc == 0 || _qop != null);
 }

packages/wyatt_http_client/lib/src/utils/http_status.dart

@@ -95,29 +95,17 @@ enum HttpStatus {
     return false;
   }
 
-  bool isInfo() {
-    return statusCode >= 100 && statusCode < 200; 
-  }
+  bool isInfo() => statusCode >= 100 && statusCode < 200;
 
-  bool isSuccess() {
-    return statusCode >= 200 && statusCode < 300; 
-  }
+  bool isSuccess() => statusCode >= 200 && statusCode < 300;
 
-  bool isRedirection() {
-    return statusCode >= 300 && statusCode < 400; 
-  }
+  bool isRedirection() => statusCode >= 300 && statusCode < 400;
 
-  bool isClientError() {
-    return statusCode >= 400 && statusCode < 500; 
-  }
+  bool isClientError() => statusCode >= 400 && statusCode < 500;
 
-  bool isServerError() {
-    return statusCode >= 500 && statusCode < 600; 
-  }
+  bool isServerError() => statusCode >= 500 && statusCode < 600;
 
-  factory HttpStatus.from(int status) {
-    return HttpStatus.values
+  factory HttpStatus.from(int status) => HttpStatus.values
         .firstWhere((element) => element.statusCode == status);
-  }
 
 }