FunctionType.fromJson constructor

FunctionType.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 FunctionType.fromJson(Object? json_) {
  final json = json_ is Map
      ? _spec.fields.map((f) => json_[f.label]).toList(growable: false)
      : json_;
  return switch (json) {
    [final parameters, final results] ||
    (final parameters, final results) =>
      FunctionType(
        parameters:
            (parameters! as Iterable).map(ValueType.fromJson).toList(),
        results: (results! as Iterable).map(ValueType.fromJson).toList(),
      ),
    _ => throw Exception('Invalid JSON $json_')
  };
}