Local varcharReader()

in jones-ndb/impl/src/ndb/NdbTypeEncoders.cpp [1172:1215]
39 lines of code
6 McCabe index (conditional complexity)

Local<Value> varcharReader(const NdbDictionary::Column *col, 
                            char *buffer, uint32_t offset) {
  LOAD_ALIGNED_DATA(LENGTHTYPE, length, buffer+offset);
  char * str = buffer+offset+sizeof(length);
  Local<String> string;
  const EncoderCharset * csinfo = getEncoderCharsetForColumn(col);

  if(csinfo->isAscii || 
     (! csinfo->isMultibyte && stringIsAscii((const unsigned char *) str, length))) {
    stats.read_strings_externalized++;
    ExternalizedAsciiString *ext = new ExternalizedAsciiString(str, length);
    string = String::NewExternal(isolate, ext);
    //DEBUG_PRINT("(A): External ASCII [size %d]", length);
  }
  else if(csinfo->isUtf16le) {
    stats.read_strings_externalized++;
    uint16_t * buf = (uint16_t *) str;
    ExternalizedUnicodeString * ext = new ExternalizedUnicodeString(buf, length/2);
    string = String::NewExternal(isolate, ext);
    //DEBUG_PRINT("(B): External UTF-16-LE [size %d]", length);
  }
  else if(csinfo->isUtf8) {
    stats.read_strings_created++;
    string = String::NewFromUtf8(isolate, str, String::kNormalString, length);
    //DEBUG_PRINT("(C): New From UTF-8 [size %d]", length);
  }
  else {
    stats.read_strings_created++;
    stats.read_strings_recoded++;
    CharsetMap csmap;
    int recode_size = getUtf8BufferSizeForColumn(length, csinfo);
    char * recode_buffer = new char[recode_size];
    int32_t lengths[2];
    lengths[0] = length;
    lengths[1] = recode_size;
    csmap.recode(lengths, 
                 col->getCharsetNumber(), csmap.getUTF8CharsetNumber(),
                 str, recode_buffer);
    string = String::NewFromUtf8(isolate, recode_buffer, String::kNormalString, lengths[1]);
    delete[] recode_buffer;
    //DEBUG_PRINT("(D.2): Recode to UTF-8 and create new [size %d]", length);
  }
  return string;
}