bool equals()

in lib/src/equality.dart [325:343]

• 19 lines of code
• 9 McCabe index (conditional complexity)

  bool equals(Map<K, V>? map1, Map<K, V>? map2) {
    if (identical(map1, map2)) return true;
    if (map1 == null || map2 == null) return false;
    var length = map1.length;
    if (length != map2.length) return false;
    Map<_MapEntry, int> equalElementCounts = HashMap();
    for (var key in map1.keys) {
      var entry = _MapEntry(this, key, map1[key]);
      var count = equalElementCounts[entry] ?? 0;
      equalElementCounts[entry] = count + 1;
    }
    for (var key in map2.keys) {
      var entry = _MapEntry(this, key, map2[key]);
      var count = equalElementCounts[entry];
      if (count == null || count == 0) return false;
      equalElementCounts[entry] = count - 1;
    }
    return true;
  }