public static ushort EncToIdx(ulong encWord1, ulong encWord2, ulong encWord3)
{
uint hashcode1 = Hashing.Hashcode64(encWord1);
uint hashcode2 = Hashing.Hashcode64(encWord2);
uint hashcode3 = Hashing.Hashcode64(encWord3);
uint idx = (31 * 31 * hashcode1 + 31 * hashcode2 + hashcode3) % SIZE;
if (encSymbs3 == null)
{
encSymbs3 = new ulong[3 * SIZE];
encSymbsIdxs3 = new ushort[SIZE];
}
ulong storedEnc1 = encSymbs3[3 * idx];
ulong storedEnc2 = encSymbs3[3 * idx + 1];
ulong storedEnc3 = encSymbs3[3 * idx + 2];
if (storedEnc1 == encWord1 & storedEnc2 == encWord2 & storedEnc3 == encWord3)
{
return(encSymbsIdxs3[idx]);
}
byte[] bytes = Decode(encWord1, encWord2, encWord3);
ushort symbIdx = SymbObj.BytesToIdx(bytes);
if (storedEnc1 == 0)
{
encSymbs3[3 * idx] = encWord1;
encSymbs3[3 * idx + 1] = encWord2;
encSymbs3[3 * idx + 2] = encWord3;
encSymbsIdxs3[idx] = symbIdx;
}
return(symbIdx);
}
public static ushort EncToIdx(ulong encWord1, ulong encWord2)
{
uint hashcode1 = Hashing.Hashcode64(encWord1);
uint hashcode2 = Hashing.Hashcode64(encWord2);
uint idx = (31 * hashcode1 + hashcode2) % SIZE;
ulong storedEnc1 = encSymbs2[2 * idx];
ulong storedEnc2 = encSymbs2[2 * idx + 1];
if (storedEnc1 == encWord1 & storedEnc2 == encWord2)
{
return(encSymbsIdxs2[idx]);
}
byte[] bytes = Decode(encWord1, encWord2);
ushort symbIdx = SymbObj.BytesToIdx(bytes);
if (storedEnc1 == 0)
{
encSymbs2[2 * idx] = encWord1;
encSymbs2[2 * idx + 1] = encWord2;
encSymbsIdxs2[idx] = symbIdx;
}
return(symbIdx);
}
public static ushort EncToIdx(ulong[] encWords, int count)
{
uint hashcode = Hashing.Hashcode64(encWords[0]);
for (int i = 1; i < count; i++)
{
hashcode = 31 * hashcode + Hashing.Hashcode64(encWords[i]);
}
uint idx = hashcode % SIZE;
if (encSymbs == null)
{
encSymbs = new ulong[SIZE][];
encSymbsIdxs = new ushort[SIZE];
}
ulong[] storedEncs = encSymbs[idx];
if (storedEncs != null && storedEncs.Length == count && Array.IsPrefix(storedEncs, encWords))
{
return(encSymbsIdxs[idx]);
}
byte[] bytes = Decode(encWords, count);
ushort symbIdx = SymbObj.BytesToIdx(bytes);
if (storedEncs == null)
{
encSymbs[idx] = Array.Take(encWords, count);
encSymbsIdxs[idx] = symbIdx;
}
return(symbIdx);
}
public static ushort EncToIdx(ulong encWord)
{
uint hashcode = Hashing.Hashcode64(encWord);
uint idx = hashcode % SIZE;
ulong storedEnc = encSymbs1[idx];
if (storedEnc == encWord)
{
return(encSymbsIdxs1[idx]);
}
byte[] bytes = Decode(encWord);
ushort symbIdx = SymbObj.BytesToIdx(bytes);
if (storedEnc == 0)
{
encSymbs1[idx] = encWord;
encSymbsIdxs1[idx] = symbIdx;
}
return(symbIdx);
}