[dart-dio] Fix compile error in enum properties with "default" values (#20495)

modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/class_members.mustache

@@ -32,7 +32,7 @@
 
   @BuiltValueHook(initializeBuilder: true)
   static void _defaults({{{classname}}}Builder b) => b{{#vendorExtensions.x-parent-discriminator}}..{{propertyName}}=b.discriminatorValue{{/vendorExtensions.x-parent-discriminator}}{{#vendorExtensions.x-self-and-ancestor-only-props}}{{#defaultValue}}
-      ..{{{name}}} = {{#isEnum}}{{^isContainer}}const {{{enumName}}}._({{/isContainer}}{{/isEnum}}{{{defaultValue}}}{{#isEnum}}{{^isContainer}}){{/isContainer}}{{/isEnum}}{{/defaultValue}}{{/vendorExtensions.x-self-and-ancestor-only-props}};
+      ..{{{name}}} = {{#isEnum}}{{^isContainer}}{{{defaultValue}}}{{/isContainer}}{{/isEnum}}{{^isEnum}}{{{defaultValue}}}{{/isEnum}}{{/defaultValue}}{{/vendorExtensions.x-self-and-ancestor-only-props}};
 
 {{/vendorExtensions.x-is-parent}}  @BuiltValueSerializer(custom: true)
   static Serializer<{{classname}}> get serializer => _${{classname}}Serializer();

modules/openapi-generator/src/test/resources/3_0/dart/petstore-with-fake-endpoints-models-for-testing.yaml

@@ -2062,3 +2062,22 @@ components:
       enum:
         - admin
         - user
+    TestEnum:
+      type: string
+      enum:
+        - ""
+        - "1"
+        - "2"
+      title: TestEnum
+    TestItem:
+      type: object
+      required:
+        - test
+      properties:
+        test:
+          type: integer
+          title: test
+        testEmum:
+          $ref: '#/components/schemas/TestEnum'
+          default: ""
+      title: TestItem

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/.openapi-generator/FILES

@@ -56,7 +56,9 @@ doc/SingleRefType.md
 doc/SpecialModelName.md
 doc/StoreApi.md
 doc/Tag.md
+doc/TestEnum.md
 doc/TestInlineFreeformAdditionalPropertiesRequest.md
+doc/TestItem.md
 doc/User.md
 doc/UserApi.md
 lib/openapi.dart
@@ -122,6 +124,8 @@ lib/src/model/read_only_first.dart
 lib/src/model/single_ref_type.dart
 lib/src/model/special_model_name.dart
 lib/src/model/tag.dart
+lib/src/model/test_enum.dart
 lib/src/model/test_inline_freeform_additional_properties_request.dart
+lib/src/model/test_item.dart
 lib/src/model/user.dart
 pubspec.yaml

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/README.md

@@ -164,7 +164,9 @@ Class | Method | HTTP request | Description
  - [SingleRefType](doc/SingleRefType.md)
  - [SpecialModelName](doc/SpecialModelName.md)
  - [Tag](doc/Tag.md)
+ - [TestEnum](doc/TestEnum.md)
  - [TestInlineFreeformAdditionalPropertiesRequest](doc/TestInlineFreeformAdditionalPropertiesRequest.md)
+ - [TestItem](doc/TestItem.md)
  - [User](doc/User.md)
 
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/doc/TestEnum.md

@@ -0,0 +1,14 @@
+# openapi.model.TestEnum
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/doc/TestItem.md

@@ -0,0 +1,16 @@
+# openapi.model.TestItem
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**test** | **int** |  | 
+**testEmum** | [**TestEnum**](TestEnum.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/openapi.dart

@@ -65,6 +65,8 @@ export 'package:openapi/src/model/read_only_first.dart';
 export 'package:openapi/src/model/single_ref_type.dart';
 export 'package:openapi/src/model/special_model_name.dart';
 export 'package:openapi/src/model/tag.dart';
+export 'package:openapi/src/model/test_enum.dart';
 export 'package:openapi/src/model/test_inline_freeform_additional_properties_request.dart';
+export 'package:openapi/src/model/test_item.dart';
 export 'package:openapi/src/model/user.dart';
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/src/deserialize.dart

@@ -41,6 +41,7 @@ import 'package:openapi/src/model/read_only_first.dart';
 import 'package:openapi/src/model/special_model_name.dart';
 import 'package:openapi/src/model/tag.dart';
 import 'package:openapi/src/model/test_inline_freeform_additional_properties_request.dart';
+import 'package:openapi/src/model/test_item.dart';
 import 'package:openapi/src/model/user.dart';
 
 final _regList = RegExp(r'^List<(.*)>$');
@@ -163,8 +164,13 @@ final _regMap = RegExp(r'^Map<String,(.*)>$');
           return SpecialModelName.fromJson(value as Map<String, dynamic>) as ReturnType;
         case 'Tag':
           return Tag.fromJson(value as Map<String, dynamic>) as ReturnType;
+        case 'TestEnum':
+
+
         case 'TestInlineFreeformAdditionalPropertiesRequest':
           return TestInlineFreeformAdditionalPropertiesRequest.fromJson(value as Map<String, dynamic>) as ReturnType;
+        case 'TestItem':
+          return TestItem.fromJson(value as Map<String, dynamic>) as ReturnType;
         case 'User':
           return User.fromJson(value as Map<String, dynamic>) as ReturnType;
         default:

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/src/model/test_enum.dart

@@ -0,0 +1,25 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+
+// ignore_for_file: unused_element
+import 'package:json_annotation/json_annotation.dart';
+
+
+enum TestEnum {
+      @JsonValue(r'')
+      empty(r''),
+      @JsonValue(r'1')
+      n1(r'1'),
+      @JsonValue(r'2')
+      n2(r'2'),
+      @JsonValue(r'unknown_default_open_api')
+      unknownDefaultOpenApi(r'unknown_default_open_api');
+
+  const TestEnum(this.value);
+
+  final String value;
+
+  @override
+  String toString() => value;
+}

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/src/model/test_item.dart

@@ -0,0 +1,74 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+
+// ignore_for_file: unused_element
+import 'package:openapi/src/model/test_enum.dart';
+import 'package:json_annotation/json_annotation.dart';
+
+part 'test_item.g.dart';
+
+
+@JsonSerializable(
+  checked: true,
+  createToJson: true,
+  disallowUnrecognizedKeys: false,
+  explicitToJson: true,
+)
+class TestItem {
+  /// Returns a new [TestItem] instance.
+  TestItem({
+
+    required  this.test,
+
+     this.testEmum,
+  });
+
+  @JsonKey(
+
+    name: r'test',
+    required: true,
+    includeIfNull: false,
+  )
+
+
+  final int test;
+
+
+
+  @JsonKey(
+
+    name: r'testEmum',
+    required: false,
+    includeIfNull: false,
+  unknownEnumValue: TestEnum.unknownDefaultOpenApi,
+  )
+
+
+  final TestEnum? testEmum;
+
+
+
+
+
+    @override
+    bool operator ==(Object other) => identical(this, other) || other is TestItem &&
+      other.test == test &&
+      other.testEmum == testEmum;
+
+    @override
+    int get hashCode =>
+        test.hashCode +
+        testEmum.hashCode;
+
+  factory TestItem.fromJson(Map<String, dynamic> json) => _$TestItemFromJson(json);
+
+  Map<String, dynamic> toJson() => _$TestItemToJson(this);
+
+  @override
+  String toString() {
+    return toJson().toString();
+  }
+
+}
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/test/test_enum_test.dart

@@ -0,0 +1,9 @@
+import 'package:test/test.dart';
+import 'package:openapi/openapi.dart';
+
+// tests for TestEnum
+void main() {
+
+  group(TestEnum, () {
+  });
+}

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/test/test_item_test.dart

@@ -0,0 +1,21 @@
+import 'package:test/test.dart';
+import 'package:openapi/openapi.dart';
+
+// tests for TestItem
+void main() {
+  final TestItem? instance = /* TestItem(...) */ null;
+  // TODO add properties to the entity
+
+  group(TestItem, () {
+    // int test
+    test('to test the property `test`', () async {
+      // TODO
+    });
+
+    // TestEnum testEmum
+    test('to test the property `testEmum`', () async {
+      // TODO
+    });
+
+  });
+}

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/.openapi-generator/FILES

@@ -55,7 +55,9 @@ doc/SingleRefType.md
 doc/SpecialModelName.md
 doc/StoreApi.md
 doc/Tag.md
+doc/TestEnum.md
 doc/TestInlineFreeformAdditionalPropertiesRequest.md
+doc/TestItem.md
 doc/User.md
 doc/UserApi.md
 lib/openapi.dart
@@ -123,7 +125,9 @@ lib/src/model/read_only_first.dart
 lib/src/model/single_ref_type.dart
 lib/src/model/special_model_name.dart
 lib/src/model/tag.dart
+lib/src/model/test_enum.dart
 lib/src/model/test_inline_freeform_additional_properties_request.dart
+lib/src/model/test_item.dart
 lib/src/model/user.dart
 lib/src/serializers.dart
 pubspec.yaml

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/README.md

@@ -163,7 +163,9 @@ Class | Method | HTTP request | Description
  - [SingleRefType](doc/SingleRefType.md)
  - [SpecialModelName](doc/SpecialModelName.md)
  - [Tag](doc/Tag.md)
+ - [TestEnum](doc/TestEnum.md)
  - [TestInlineFreeformAdditionalPropertiesRequest](doc/TestInlineFreeformAdditionalPropertiesRequest.md)
+ - [TestItem](doc/TestItem.md)
  - [User](doc/User.md)
 
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/doc/TestEnum.md

@@ -0,0 +1,14 @@
+# openapi.model.TestEnum
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/doc/TestItem.md

@@ -0,0 +1,16 @@
+# openapi.model.TestItem
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**test** | **int** |  | 
+**testEmum** | [**TestEnum**](TestEnum.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/openapi.dart

@@ -66,6 +66,8 @@ export 'package:openapi/src/model/read_only_first.dart';
 export 'package:openapi/src/model/single_ref_type.dart';
 export 'package:openapi/src/model/special_model_name.dart';
 export 'package:openapi/src/model/tag.dart';
+export 'package:openapi/src/model/test_enum.dart';
 export 'package:openapi/src/model/test_inline_freeform_additional_properties_request.dart';
+export 'package:openapi/src/model/test_item.dart';
 export 'package:openapi/src/model/user.dart';
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/src/model/test_enum.dart

@@ -0,0 +1,38 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+
+// ignore_for_file: unused_element
+import 'package:built_collection/built_collection.dart';
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+
+part 'test_enum.g.dart';
+
+class TestEnum extends EnumClass {
+
+  @BuiltValueEnumConst(wireName: r'')
+  static const TestEnum empty = _$empty;
+  @BuiltValueEnumConst(wireName: r'1')
+  static const TestEnum n1 = _$n1;
+  @BuiltValueEnumConst(wireName: r'2')
+  static const TestEnum n2 = _$n2;
+  @BuiltValueEnumConst(wireName: r'unknown_default_open_api', fallback: true)
+  static const TestEnum unknownDefaultOpenApi = _$unknownDefaultOpenApi;
+
+  static Serializer<TestEnum> get serializer => _$testEnumSerializer;
+
+  const TestEnum._(String name): super(name);
+
+  static BuiltSet<TestEnum> get values => _$values;
+  static TestEnum valueOf(String name) => _$valueOf(name);
+}
+
+/// Optionally, enum_class can generate a mixin to go with your enum for use
+/// with Angular. It exposes your enum constants as getters. So, if you mix it
+/// in to your Dart component class, the values become available to the
+/// corresponding Angular template.
+///
+/// Trigger mixin generation by writing a line like this one next to your enum.
+abstract class TestEnumMixin = Object with _$TestEnumMixin;
+