/* Deserialize lexicals. */
long syms = orig.getLong();
for (long j = 0; j < syms; j++) {
String sym = readStr();
Integer idx;
if ((idx = sci.oTryGetLexicalIdx(sym)) != null)
ctx.oLex[idx] = readRef();
else if ((idx = sci.iTryGetLexicalIdx(sym)) != null)
ctx.iLex[idx] = orig.getLong();
else if ((idx = sci.nTryGetLexicalIdx(sym)) != null)
ctx.nLex[idx] = orig.getDouble();