Method addGenerator

src/sys/expressionparser.cxx:262–264

}

void ExpressionParser::addGenerator(const string& name, FieldGeneratorPtr g) {
  gen[name] = std::move(g);
}

void ExpressionParser::addBinaryOp(char sym, FieldGeneratorPtr b, int precedence) {
  bin_op[sym] = std::make_pair(b, precedence);