TypedString.fromJson constructor

TypedString.fromJson(
  1. Object? json_
)

Returns a new instance from a JSON value. May throw if the value does not have the expected structure.

Implementation

factory TypedString.fromJson(Object? json_) {
  final json = json_ is Map
      ? _spec.fields.map((f) => json_[f.label]).toList(growable: false)
      : json_;
  return switch (json) {
    [final dataType, final value] ||
    (final dataType, final value) => TypedString(
      dataType: DataType.fromJson(dataType),
      value: value is String ? value : (value! as ParsedString).value,
    ),
    _ => throw Exception('Invalid JSON $json_'),
  };
}