ArchiveInput.fromJson constructor

ArchiveInput.fromJson(Object? json_)

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

Implementation

factory ArchiveInput.fromJson(Object? json_) {
  Object? json = json_;
  if (json is Map) {
    final MapEntry(:key, :value) =
        json.entries.firstWhere((e) => e.key != 'runtimeType');
    json = (
      key is int ? key : _spec.cases.indexWhere((c) => c.label == key),
      value,
    );
  }
  return switch (json) {
    (0, final value) || [0, final value] => ArchiveInputZip(
        (value! as Iterable).map(ZipArchiveInput.fromJson).toList()),
    (1, final value) || [1, final value] => ArchiveInputTar(
        (value! as Iterable).map(TarArchiveInput.fromJson).toList()),
    _ => throw Exception('Invalid JSON $json_'),
  };
}