replaceRange method

@override void replaceRange(int start, int end, Iterable<T> replacements)

Replaces a range of elements with the elements of replacements. Removes the objects in the range from start to end, then inserts the elements of replacements at start. This will change the size of this slice by replacements.length - (end - start). Note, the ranges of other slices on the underlying list will not change, therefore use with care as this may shift the underlying data in other slices.

Implementation

@override
void replaceRange(int start, int end, Iterable<T> replacements) {
  final (normalizedStart, normalizedEnd) =
      _validateAndNormalizeRange(start, end);
  final replacementsList = replacements.toList(growable: false);
  _list.replaceRange(normalizedStart, normalizedEnd, replacementsList);
  final replacementsLength = replacementsList.length;
  final diff = replacementsLength - (normalizedEnd - normalizedStart);
  _end += diff;
}