WatInput.fromJson constructor
WatInput.fromJson(
- Object? json_
Returns a new instance from a JSON value. May throw if the value does not have the expected structure.
Implementation
factory WatInput.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] =>
WatInputText(value is String ? value : (value! as ParsedString).value),
(1, final value) || [1, final value] => WatInputBinary((value is Uint8List
? value
: Uint8List.fromList((value! as List).cast()))),
(2, final value) || [2, final value] => WatInputFilePath(
value is String ? value : (value! as ParsedString).value),
_ => throw Exception('Invalid JSON $json_'),
};
}