Require Dart 3 and latest analyzer (google#1319)

Author: kevmoo

.github/workflows/dart.yml

@@ -2,7 +2,7 @@ name: _test_yaml
 publish_to: none
 
 environment:
-  sdk: '>=2.19.0 <3.0.0'
+  sdk: ^3.0.0
 
 dev_dependencies:
   _json_serial_shared_test:

_test_yaml/pubspec.yaml

@@ -15,6 +15,7 @@ linter:
     - cancel_subscriptions
     - cascade_invocations
     - comment_references
+    - invalid_case_patterns
     - join_return_with_assignment
     - literal_only_boolean_expressions
     - missing_whitespace_between_adjacent_strings
@@ -27,6 +28,8 @@ linter:
     - prefer_relative_imports
     - sort_child_properties_last
     - test_types_in_equals
+    - type_literal_in_constant_pattern
+    - unnecessary_breaks
     - unsafe_html
     - use_full_hex_values_for_flutter_colors
     - use_string_buffers

analysis_options.yaml

@@ -2,7 +2,7 @@ name: example
 publish_to: none
 
 environment:
-  sdk: '>=2.19.0 <3.0.0'
+  sdk: ^3.0.0
 
 dependencies:
   json_annotation: ^4.8.0

example/pubspec.yaml

@@ -1,3 +1,8 @@
+## 6.7.0-dev
+
+- Require Dart 3.0
+- Require `analyzer: ^5.12.0`
+
 ## 6.6.2
 
 - Better handling of `Object?` or `dynamic` as `fromJson` constructor param.

json_serializable/CHANGELOG.md

@@ -21,7 +21,7 @@ class CreateFactoryResult {
   CreateFactoryResult(this.output, this.usedFields);
 }
 
-abstract class DecodeHelper implements HelperCore {
+mixin DecodeHelper implements HelperCore {
   CreateFactoryResult createFactory(
     Map<String, FieldElement> accessibleFields,
     Map<String, String> unavailableReasons,

json_serializable/lib/src/decode_helper.dart

@@ -13,7 +13,7 @@ import 'type_helpers/generic_factory_helper.dart';
 import 'type_helpers/json_converter_helper.dart';
 import 'unsupported_type_error.dart';
 
-abstract class EncodeHelper implements HelperCore {
+mixin EncodeHelper implements HelperCore {
   String _fieldAccess(FieldElement field) => '$_toJsonParamName.${field.name}';
 
   String createPerFieldToJson(Set<FieldElement> accessibleFieldSet) {

json_serializable/lib/src/encoder_helper.dart

@@ -181,7 +181,7 @@ TypeParameterType _decodeHelper(
       final funcParamType = type.normalParameterTypes.single;
 
       if ((funcParamType.isDartCoreObject && funcParamType.isNullableType) ||
-          funcParamType.isDynamic) {
+          funcParamType is DynamicType) {
         return funcReturnType as TypeParameterType;
       }
     }
@@ -204,7 +204,7 @@ TypeParameterType _encodeHelper(
   final type = param.type;
 
   if (type is FunctionType &&
-      (type.returnType.isDartCoreObject || type.returnType.isDynamic) &&
+      (type.returnType.isDartCoreObject || type.returnType is DynamicType) &&
       type.normalParameterTypes.length == 1) {
     final funcParamType = type.normalParameterTypes.single;
 

json_serializable/lib/src/type_helpers/json_helper.dart

@@ -68,7 +68,7 @@ class MapHelper extends TypeHelper<TypeHelperContextWithConfig> {
 
     _checkSafeKeyType(expression, keyArg);
 
-    final valueArgIsAny = valueArg.isDynamic ||
+    final valueArgIsAny = valueArg is DynamicType ||
         (valueArg.isDartCoreObject && valueArg.isNullableType);
     final isKeyStringable = _isKeyStringable(keyArg);
 
@@ -114,7 +114,7 @@ class MapHelper extends TypeHelper<TypeHelperContextWithConfig> {
     if (keyArg.isEnum) {
       keyUsage = context.deserialize(keyArg, _keyParam).toString();
     } else if (context.config.anyMap &&
-        !(keyArg.isDartCoreObject || keyArg.isDynamic)) {
+        !(keyArg.isDartCoreObject || keyArg is DynamicType)) {
       keyUsage = '$_keyParam as String';
     } else if (context.config.anyMap &&
         keyArg.isDartCoreObject &&
@@ -157,7 +157,7 @@ bool _isKeyStringable(DartType keyType) =>
 void _checkSafeKeyType(String expression, DartType keyArg) {
   // We're not going to handle converting key types at the moment
   // So the only safe types for key are dynamic/Object/String/enum
-  if (keyArg.isDynamic ||
+  if (keyArg is DynamicType ||
       (!keyArg.isNullableType &&
           (keyArg.isDartCoreObject ||
               coreStringTypeChecker.isExactlyType(keyArg) ||

json_serializable/lib/src/type_helpers/map_helper.dart

@@ -21,7 +21,7 @@ class ValueHelper extends TypeHelper {
     TypeHelperContext context,
   ) {
     if (targetType.isDartCoreObject ||
-        targetType.isDynamic ||
+        targetType is DynamicType ||
         simpleJsonTypeChecker.isAssignableFromType(targetType)) {
       return expression;
     }
@@ -39,7 +39,7 @@ class ValueHelper extends TypeHelper {
     if (targetType.isDartCoreObject && !targetType.isNullableType) {
       final question = defaultProvided ? '?' : '';
       return '$expression as Object$question';
-    } else if (targetType.isDartCoreObject || targetType.isDynamic) {
+    } else if (targetType.isDartCoreObject || targetType is DynamicType) {
       // just return it as-is. We'll hope it's safe.
       return expression;
     } else if (targetType.isDartCoreDouble) {

json_serializable/lib/src/type_helpers/value_helper.dart

@@ -207,7 +207,7 @@ String typeToCode(
   DartType type, {
   bool forceNullable = false,
 }) {
-  if (type.isDynamic) {
+  if (type is DynamicType) {
     return 'dynamic';
   } else if (type is InterfaceType) {
     return [

json_serializable/lib/src/utils.dart

@@ -1,19 +1,19 @@
 name: json_serializable
-version: 6.6.2
+version: 6.7.0-dev
 description: >-
   Automatically generate code for converting to and from JSON by annotating
   Dart classes.
 repository: https://github.com/google/json_serializable.dart/tree/master/json_serializable
 environment:
-  sdk: '>=2.19.0 <3.0.0'
+  sdk: ^3.0.0
 topics:
  - json
  - build-runner
  - json-serializable
  - codegen
 
 dependencies:
-  analyzer: ^5.2.0
+  analyzer: ^5.12.0
   async: ^2.8.0
   build: ^2.0.0
   build_config: '>=0.4.4 <2.0.0'
@@ -26,7 +26,7 @@ dependencies:
   path: ^1.8.0
   pub_semver: ^2.0.0
   pubspec_parse: ^1.0.0
-  source_gen: ^1.0.0
+  source_gen: ^1.3.2
   source_helper: ^1.3.0
 
 dev_dependencies:

json_serializable/pubspec.yaml

@@ -118,24 +118,18 @@ void main() {
         config[entry.key] = entry.value;
 
         String lastLine;
-        switch (entry.key) {
-          case 'field_rename':
-            lastLine =
-                '`42` is not one of the supported values: none, kebab, snake, '
-                'pascal, screamingSnake';
-            break;
-          case 'constructor':
-            lastLine = "type 'int' is not a subtype of type 'String?' in type "
-                'cast';
-            break;
-          case 'create_to_json':
-            lastLine = "type 'int' is not a subtype of type 'bool?' in type "
-                'cast';
-            break;
-          default:
-            lastLine =
-                "type 'int' is not a subtype of type 'bool?' in type cast";
-        }
+        lastLine = switch (entry.key) {
+          'field_rename' =>
+            '`42` is not one of the supported values: none, kebab, snake, '
+                'pascal, screamingSnake',
+          'constructor' =>
+            "type 'int' is not a subtype of type 'String?' in type "
+                'cast',
+          'create_to_json' =>
+            "type 'int' is not a subtype of type 'bool?' in type "
+                'cast',
+          _ => "type 'int' is not a subtype of type 'bool?' in type cast"
+        };
 
         final matcher = isA<StateError>().having(
           (v) => v.message,

json_serializable/test/config_test.dart

@@ -74,23 +74,14 @@ Matcher _getMatcher(bool checked, String? expectedKey, bool checkedAssignment) {
     );
 
     if (checkedAssignment) {
-      switch (expectedKey) {
-        case 'validatedPropertyNo42':
-          innerMatcher = isStateError;
-          break;
-        case 'no-42':
-          innerMatcher = isArgumentError;
-          break;
-        case 'strictKeysObject':
-          innerMatcher = _isAUnrecognizedKeysException('bob');
-          break;
-        case 'intIterable':
-        case 'datetime-iterable':
-          innerMatcher = isTypeError;
-          break;
-        default:
-          throw StateError('Not expected! - $expectedKey');
-      }
+      innerMatcher = switch (expectedKey) {
+        'validatedPropertyNo42' => isStateError,
+        'no-42' => isArgumentError,
+        'strictKeysObject' => _isAUnrecognizedKeysException('bob'),
+        'intIterable' => isTypeError,
+        'datetime-iterable' => isTypeError,
+        _ => throw StateError('Not expected! - $expectedKey')
+      };
     }
   }
 

json_serializable/test/kitchen_sink/kitchen_sink_yaml_test.dart

@@ -59,16 +59,11 @@ class _ReadmeBuilder extends Builder {
         final memberName = match.group(3);
         final linkContent = '[`$className${memberName ?? ''}`]';
         String linkValue;
-        switch (context) {
-          case 'core':
-            linkValue = _coreTypeUri(className);
-            break;
-          case 'ja':
-            linkValue = jsonAnnotationUri(className, memberName?.substring(1));
-            break;
-          default:
-            linkValue = 'https://unknown.com/$context/$className';
-        }
+        linkValue = switch (context) {
+          'core' => _coreTypeUri(className),
+          'ja' => jsonAnnotationUri(className, memberName?.substring(1)),
+          _ => 'https://unknown.com/$context/$className'
+        };
         foundClasses[linkContent] = linkValue;
         return linkContent;
       }