matrix-0.8.13/lib/src/utils/map_copy_extension.dart

34 lines
1.2 KiB
Dart

/*
* Famedly Matrix SDK
* Copyright (C) 2020, 2021 Famedly GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
extension MapCopyExtension on Map<String, dynamic> {
/// Deep-copies a given json map
Map<String, dynamic> copy() {
final copy = Map<String, dynamic>.from(this);
for (final entry in copy.entries) {
if (entry.value is Map<String, dynamic>) {
copy[entry.key] = (entry.value as Map<String, dynamic>).copy();
}
if (entry.value is List) {
copy[entry.key] = List.from(entry.value);
}
}
return copy;
}
}