泛型蛋（泛型包装工具）
// for snack4 demo
public class EgggUtil {
private static final Eggg eggg = new Eggg()
.withCreatorClass(ONodeCreator.class)
.withDigestHandler(EgggUtil::doDigestHandle)
.withAliasHandler(EgggUtil::doAliasHandle);
private static String doAliasHandle(ClassEggg cw, AnnotatedEggg s, String ref) {
if (s.getDigest() instanceof ONodeAttrHolder) {
return ((ONodeAttrHolder) s.getDigest()).getAlias();
} else {
return ref;
}
}
private static Object doDigestHandle(ClassEggg cw, AnnotatedEggg s, Object ref) {
ONodeAttr attr = s.getElement().getAnnotation(ONodeAttr.class);
if (attr == null && ref !