Line data    Source code

       1             : /* MIT License
       2             : *
       3             : * Copyright (C) 2019, 2020, 2021 Famedly GmbH
       4             : *
       5             : * Permission is hereby granted, free of charge, to any person obtaining a copy
       6             : * of this software and associated documentation files (the "Software"), to deal
       7             : * in the Software without restriction, including without limitation the rights
       8             : * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       9             : * copies of the Software, and to permit persons to whom the Software is
      10             : * furnished to do so, subject to the following conditions:
      11             : *
      12             : * The above copyright notice and this permission notice shall be included in all
      13             : * copies or substantial portions of the Software.
      14             : *
      15             : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      16             : * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      17             : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      18             : * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      19             : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      20             : * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
      21             : * SOFTWARE.
      22             : */
      23             : 
      24             : extension MapCopyExtension on Map<String, Object?> {
      25          64 :   dynamic _copyValue(dynamic value) {
      26          33 :     if (value is Map<String, Object?>) {
      27          31 :       return value.copy();
      28             :     }
      29          33 :     if (value is List) {
      30          62 :       return value.map(_copyValue).toList();
      31             :     }
      32             :     return value;
      33             :   }
      34             : 
      35             :   /// Deep-copies a given json map
      36          33 :   Map<String, Object?> copy() {
      37          33 :     final copy = Map<String, Object?>.from(this);
      38          66 :     for (final entry in copy.entries) {
      39         132 :       copy[entry.key] = _copyValue(entry.value);
      40             :     }
      41             :     return copy;
      42             :   }
      43             : }