YTextDeltaRetain.fromJson constructor

YTextDeltaRetain.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 YTextDeltaRetain.fromJson(Object? json_) {
  final json = json_ is Map
      ? _spec.fields.map((f) => json_[f.label]).toList(growable: false)
      : json_;
  return switch (json) {
    [final retain, final attributes] ||
    (final retain, final attributes) =>
      YTextDeltaRetain(
        retain: retain! as int,
        attributes: Option.fromJson(
            attributes, (some) => JsonValueItem.fromJson(some)).value,
      ),
    _ => throw Exception('Invalid JSON $json_')
  };
}