sO preciseGetOrCallMethod_sentinel(O object, S name, O sentinel) {
  if (object == null) null;
  
  // could optimize more for sure
  if (canCallWithVarargs(object, name))
    ret call(object, name);
    
  Field f = getField(object, name);
  if (f != null)
    ret fieldGet(f, object);
  
  ret sentinel;
}