coderForField method

@override String? coderForField(FieldElement field, SharedChecker<Model> checker, { required bool wrappedInFuture, required Sqlite fieldAnnotation, })

Produces serializing or deserializing method given a field and checker.

The assignment (data['my_field']: in serializers or myField: in deserializers) is automatically injected by the superclass and should not be included in the output of the coder.

To simplify checking, Futures are unwrapped before they get to this method. If the type was originally a future, wrappedInFuture is true. For example, Future<List<int>> will be an iterable according to the checker and wrappedInFuture will be true.

Implementation

@override
String? coderForField(field, checker, {required wrappedInFuture, required fieldAnnotation}) {
  final fieldValue = serdesValueForField(field, fieldAnnotation.name!, checker: checker);

  // Iterable
  if (checker.isIterable) {
    final argType = checker.unFuturedArgType;
    final argTypeChecker = OfflineFirstChecker(checker.argType);
    final castIterable = SerdesGenerator.iterableCast(
      argType,
      isSet: checker.isSet,
      isList: checker.isList,
      isFuture: wrappedInFuture || checker.isFuture,
      forceCast: true,
    );

    // Iterable<OfflineFirstSerdes>
    if (argTypeChecker.hasSerdes) {
      final doesHaveConstructor = hasConstructor(checker.argType);
      if (doesHaveConstructor) {
        final serializableType =
            argTypeChecker.superClassTypeArgs.last.getDisplayString(withNullability: true);
        return '''
          jsonDecode($fieldValue).map(
            (c) => $argType.$constructorName(c as $serializableType)
          )$castIterable
        ''';
      }
    }
  }

  // OfflineFirstSerdes
  if ((checker as OfflineFirstChecker).hasSerdes) {
    final doesHaveConstructor = hasConstructor(field.type);
    if (doesHaveConstructor) {
      final serializableType =
          checker.superClassTypeArgs.last.getDisplayString(withNullability: true);
      return '${SharedChecker.withoutNullability(field.type)}.$constructorName($fieldValue as $serializableType)';
    }
  }

  return super.coderForField(field, checker,
      wrappedInFuture: wrappedInFuture, fieldAnnotation: fieldAnnotation);
}