void NaClBitstreamCursor::skipAbbreviatedField(const NaClBitCodeAbbrevOp &Op) {
  assert(!Op.isLiteral() && "Use ReadAbbreviatedLiteral for literals!");

  // Decode the value as we are commanded.
  switch (Op.getEncoding()) {
  default:
    report_fatal_error("Should not reach here");
  case NaClBitCodeAbbrevOp::Fixed:
    (void)Read((unsigned)Op.getEncodingData());
    break;
  case NaClBitCodeAbbrevOp::VBR:
    (void)ReadVBR64((unsigned)Op.getEncodingData());
    break;
  case NaClBitCodeAbbrevOp::Char6:
    (void)Read(6);
    break;
  }
}
void NaClBitstreamCursor::readAbbreviatedField(
    const NaClBitCodeAbbrevOp &Op,
    SmallVectorImpl<uint64_t> &Vals) {
  assert(!Op.isLiteral() && "Use ReadAbbreviatedLiteral for literals!");

  // Decode the value as we are commanded.
  switch (Op.getEncoding()) {
  default:
    report_fatal_error("Should not reach here");
  case NaClBitCodeAbbrevOp::Fixed:
    Vals.push_back(Read((unsigned)Op.getEncodingData()));
    break;
  case NaClBitCodeAbbrevOp::VBR:
    Vals.push_back(ReadVBR64((unsigned)Op.getEncodingData()));
    break;
  case NaClBitCodeAbbrevOp::Char6:
    Vals.push_back(NaClBitCodeAbbrevOp::DecodeChar6(Read(6)));
    break;
  }
}