builder.append("...");
        }
        return builder.toString();
    }

    public TypeMetaData addTypeArg(TypeMetaData typeArg) {
        if (typeArgs == null) {
            typeArgs = new ArrayList<TypeMetaData>();
        }
        typeArgs.add(typeArg);
        return this;
    }

    @Override
    public void visitTypes(Action<TypeMetaData> action) {
        if (wildcard) {