BloombergLP::bdljsn::Json::visit

Return the result (having RETURN_TYPE) of invoking the specified visitor (callable) object on this Json object. visitor must be callable as if it provides the following overloads of operator(): ` RETURN_TYPE operator()(JsonObject *object ); RETURN_TYPE operator()(JsonArray *array ); RETURN_TYPE operator()(bsl::string *string ); RETURN_TYPE operator()(JsonNumber *number ); RETURN_TYPE operator()(bool *boolean); RETURN_TYPE operator()(JsonNull *null ); ` The overload corresponding to the current type() of this Json object is invoked. For C++03 visitor must be const qualified. The behavior is undefined unless all of these six overloads are defined. The behavior is undefined if the string overload leaves this Json object with a string that is not valid UTF‐8. Note that overloads that are not applicable in a given application need not do anything other than return. Also note that if visitor is const qualified then each of its operator() overloads must also be const qualified.