public SlicedByteBuf(ByteBuf buffer, int index, int length)
: base(length)
{
if (index < 0 || index > buffer.Capacity - length)
{
throw new IndexOutOfRangeException(buffer + ".slice(" + index + ", " + length + ')');
}
if (buffer is SlicedByteBuf)
{
_buffer = ((SlicedByteBuf)buffer)._buffer;
_adjustment = ((SlicedByteBuf)buffer)._adjustment + index;
}
else if (buffer is DuplicatedByteBuf)
{
_buffer = buffer.Unwrap();
_adjustment = index;
}
else
{
_buffer = buffer;
_adjustment = index;
}
_length = length;
SetWriterIndex(length);
}
