RenamePartitions.fromJson constructor
RenamePartitions.fromJson(
- Object? json_
Returns a new instance from a JSON value. May throw if the value does not have the expected structure.
Implementation
factory RenamePartitions.fromJson(Object? json_) {
final json = json_ is Map
? _spec.fields.map((f) => json_[f.label]).toList(growable: false)
: json_;
return switch (json) {
[final oldPartitions, final newPartitions] ||
(final oldPartitions, final newPartitions) =>
RenamePartitions(
oldPartitions:
(oldPartitions! as Iterable).map(Expr.fromJson).toList(),
newPartitions:
(newPartitions! as Iterable).map(Expr.fromJson).toList(),
),
_ => throw Exception('Invalid JSON $json_')
};
}