public void addField(Field field, SerializerGen serializer, int added, int removed) {
check(implInterface || !dataTypeIn.isInterface());
check(isPublic(field.getModifiers()));
String fieldName = field.getName();
check(!fields.containsKey(fieldName), "Duplicate field '%s'", field);
FieldGen fieldGen = new FieldGen();
fieldGen.field = field;
fieldGen.serializer = serializer;
fieldGen.versionAdded = added;
fieldGen.versionDeleted = removed;
fieldGen.offset = lastOffset;
lastOffset += getType(field.getType()).getSize();
fields.put(fieldName, fieldGen);
}
