YArrayEvent.fromJson constructor

YArrayEvent.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 YArrayEvent.fromJson(Object? json_) {
  final json = json_ is Map
      ? _spec.fields.map((f) => json_[f.label]).toList(growable: false)
      : json_;
  return switch (json) {
    [final target, final delta, final path] ||
    (final target, final delta, final path) => YArrayEvent(
      target: YArray.fromJson(target),
      delta: (delta! as Iterable).map(YArrayDelta.fromJson).toList(),
      path: (path! as Iterable).map(EventPathItem.fromJson).toList(),
    ),
    _ => throw Exception('Invalid JSON $json_'),
  };
}