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           71 :   dynamic _copyValue(dynamic value) {
      26           38 :     if (value is Map<String, Object?>) {
      27           34 :       return value.copy();
      28              :     }
      29           38 :     if (value is List) {
      30           66 :       return value.map(_copyValue).toList();
      31              :     }
      32              :     return value;
      33              :   }
      34              : 
      35              :   /// Deep-copies a given json map
      36           38 :   Map<String, Object?> copy() {
      37           38 :     final copy = Map<String, Object?>.from(this);
      38           76 :     for (final entry in copy.entries) {
      39          152 :       copy[entry.key] = _copyValue(entry.value);
      40              :     }
      41              :     return copy;
      42              :   }
      43              : }