read method

@override Future<ResourceTry<ByteData>> read({ IntRange? range, })

Reads the bytes at the given range.

When range is null, the whole content is returned. Out-of-range indexes are clamped to the available length automatically.

Implementation

@override
Future<ResourceTry<ByteData>> read({IntRange? range}) async {
  _bytes ??= await resource.read();

  if (range == null) {
    return _bytes!;
  }

  return _bytes!.map((value) {
    IntRange range2 =
        IntRange(max(0, range.first), min(range.last, value.lengthInBytes));
    return value.buffer.asByteData(range2.first, range2.length);
  });
}