t-unit · t-unit · Jun 3, 2025 · Jun 3, 2025 · Jun 3, 2025
diff --git a/packages/tonik/README.md b/packages/tonik/README.md
@@ -8,7 +8,8 @@
 <a href="https://pub.dev/packages/tonik"><img src="https://img.shields.io/pub/v/tonik?logo=dart" alt="pub verion"></a>                    
 <a href="https://pub.dev/packages/tonik"><img src="https://img.shields.io/pub/likes/tonik?logo=dart" alt="pub likes"></a>
 <a href="https://github.com/t-unit/tonik"><img src="https://img.shields.io/github/stars/t-unit/tonik?logo=github" alt="stars on github"></a> 
-<a href="https://github.com/t-unit/tonik"><img src="https://github.com/t-unit/tonik/actions/workflows/test.yml/badge.svg?branch=main" alt="tests"></a>                  
+<a href="https://github.com/t-unit/tonik"><img src="https://github.com/t-unit/tonik/actions/workflows/test.yml/badge.svg?branch=main" alt="tests"></a>  
+<a href="https://pub.dev/packages/very_good_analysis"><img src="https://img.shields.io/badge/style-very_good_analysis-B22C89.svg"></a>
 </p>                    
 
 

diff --git a/packages/tonik_generate/lib/src/analysis_options_generator.dart b/packages/tonik_generate/lib/src/analysis_options_generator.dart
@@ -0,0 +1,35 @@
+import 'dart:io';
+import 'package:path/path.dart' as path;
+
+void generateAnalysisOptions({
+  required String outputDirectory,
+  required String package,
+}) {
+  final packageDir = path.join(outputDirectory, package);
+  final analysisOptionsFile = File(
+    path.join(packageDir, 'analysis_options.yaml'),
+  );
+
+  if (!analysisOptionsFile.parent.existsSync()) {
+    analysisOptionsFile.parent.createSync(recursive: true);
+  }
+
+  const content = '''
+include: package:lints/recommended.yaml
+
+analyzer:
+  errors:
+    lines_longer_than_80_chars: ignore
+    unnecessary_raw_strings: ignore
+    unnecessary_brace_in_string_interps: ignore
+    no_leading_underscores_for_local_identifiers: ignore
+    cascade_invocations: ignore
+    deprecated_member_use_from_same_package: ignore
+    no_leading_underscores_for_library_prefixes: ignore
+    unused_import: ignore
+    prefer_is_empty: ignore
+    unnecessary_nullable_for_final_variable_declarations: ignore
+''';
+
+  analysisOptionsFile.writeAsStringSync(content);
+}
diff --git a/packages/tonik_generate/lib/src/generator.dart b/packages/tonik_generate/lib/src/generator.dart
@@ -1,4 +1,5 @@
 import 'package:tonik_core/tonik_core.dart';
+import 'package:tonik_generate/src/analysis_options_generator.dart';
 import 'package:tonik_generate/src/api_client/api_client_file_generator.dart';
 import 'package:tonik_generate/src/api_client/api_client_generator.dart';
 import 'package:tonik_generate/src/library_generator.dart';
@@ -132,6 +133,11 @@ class Generator {
       package: package,
     );
 
+    generateAnalysisOptions(
+      outputDirectory: outputDirectory,
+      package: package,
+    );
+
     modelGenerator.writeFiles(
       apiDocument: apiDocument,
       outputDirectory: outputDirectory,

diff --git a/packages/tonik_generate/lib/src/model/class_generator.dart b/packages/tonik_generate/lib/src/model/class_generator.dart
@@ -183,6 +183,26 @@ class ClassGenerator {
 
   Constructor _buildFromSimpleConstructor(String className, ClassModel model) {
     final normalizedProperties = normalizeProperties(model.properties.toList());
+
+    // If there are no properties, just return the constructor call
+    if (normalizedProperties.isEmpty) {
+      return Constructor(
+        (b) =>
+            b
+              ..factory = true
+              ..name = 'fromSimple'
+              ..requiredParameters.add(
+                Parameter(
+                  (b) =>
+                      b
+                        ..name = 'value'
+                        ..type = refer('String?', 'dart:core'),
+                ),
+              )
+              ..body = Code('return $className();'),
+      );
+    }
+
     final propertyAssignments = <MapEntry<String, Expression>>[];
     for (var i = 0; i < normalizedProperties.length; i++) {
       final prop = normalizedProperties[i];
@@ -258,6 +278,11 @@ class ClassGenerator {
   Code _buildFromJsonBody(String className, ClassModel model) {
     final normalizedProperties = normalizeProperties(model.properties.toList());
 
+    // If there are no properties, just return the constructor call
+    if (normalizedProperties.isEmpty) {
+      return Block.of([Code('return $className();')]);
+    }
+
     final codes = <Code>[
       Code("final map = json.decodeMap(context: '$className');"),
     ];

diff --git a/packages/tonik_generate/lib/src/pubspec_generator.dart b/packages/tonik_generate/lib/src/pubspec_generator.dart
@@ -25,6 +25,7 @@ dependencies:
   big_decimal: ^0.5.0
   collection: ^1.17.0
   dio: ^5.8.0+1
+  lints: ^6.0.0
   meta: ^1.16.0
   tonik_util: ^0.0.5
 ''';

diff --git a/packages/tonik_generate/lib/src/util/format_with_header.dart b/packages/tonik_generate/lib/src/util/format_with_header.dart
@@ -1,19 +1,10 @@
 import 'package:dart_style/dart_style.dart';
 
 extension FormatWithHeader on DartFormatter {
-  static const _ignores = [
-    'lines_longer_than_80_chars',
-    'unnecessary_raw_strings',
-    'unnecessary_brace_in_string_interps',
-    'no_leading_underscores_for_local_identifiers',
-    'cascade_invocations',
-    'prefer_is_empty',
-  ];
-
   String formatWithHeader(String code) {
     return format('''
 // Generated code - do not modify by hand
-${_ignores.map((i) => '// ignore_for_file: $i').join('\n')}
+
 $code''');
   }
 }
diff --git a/packages/tonik_generate/test/src/model/class_json_generator_test.dart b/packages/tonik_generate/test/src/model/class_json_generator_test.dart
@@ -597,5 +597,43 @@ void main() {
         contains(collapseWhitespace(expectedMethod)),
       );
     });
+
+    test('generates fromJson method for class without properties', () {
+      final model = ClassModel(
+        context: context,
+        name: 'EmptyClass',
+        properties: const [],
+      );
+
+      const expectedMethod = '''
+  factory EmptyClass.fromJson(Object? json) {
+    return EmptyClass();
+  }''';
+
+      final generatedClass = generator.generateClass(model);
+      expect(
+        collapseWhitespace(format(generatedClass.accept(emitter).toString())),
+        contains(collapseWhitespace(expectedMethod)),
+      );
+    });
+
+    test('generates fromSimple method for class without properties', () {
+      final model = ClassModel(
+        context: context,
+        name: 'EmptyClass',
+        properties: const [],
+      );
+
+      const expectedMethod = '''
+  factory EmptyClass.fromSimple(String? value) {
+    return EmptyClass();
+  }''';
+
+      final generatedClass = generator.generateClass(model);
+      expect(
+        collapseWhitespace(format(generatedClass.accept(emitter).toString())),
+        contains(collapseWhitespace(expectedMethod)),
+      );
+    });
   });
 }