@Override
protected void doEvaluate(
TExecutionContext context, LazyList<? extends ValueSource> inputs, ValueTarget output) {
double value = inputs.get(0).getDouble();
if (value < 0) {
output.putNull();
} else {
output.putDouble(Math.sqrt(value));
}
}
@Override
public void fromObject(TExecutionContext context, ValueSource in, ValueTarget out) {
if (in.isNull()) out.putNull();
else if (!tryFromObject(context, in, out)) parser.parse(context, in, out);
}