Kotlin TypeToken“未解决的参考”错误

Question

I am getting error "Unresolved reference to response" in line number 5,6 and 7. Can you please help me understand the problem?

 public class GenericCall {
        public fun genecicCall(functionToBeCalled:String, responseType:String, requestType:String, vararg args:String){
            var request = Class.forName(requestType).newInstance()
            var response = Class.forName(responseType).newInstance()
            var finalType = object : TypeToken<GenericResponse<Class<response>>>(){}.getType()
            var creditresponse: GenericResponse<response>? = AjaxHelper.ajax(Constants.Ajax.ENDPOINT_CREDIT, Constants.Ajax.REQUEST_POST, request, finalType, null)
            return ResponseProcessing.processResponse(creditresponse as Any) as response?
        }
        }
    }

Answer 1

Generic type argument can't be an expression, it should be another type, such as a class, possibly with other generic type arguments. So instead of Class<response> (line #5) you should write for example Class<Foo> if Foo is the static (inferred by the compiler) type of response . In your case you probably don't know anything about response apart from the fact that it's an instance of Any . So you can use Class<Any> or Class<*> , whichever you prefer. Similarly with GenericResponse (line #6).

Also expression cannot appear in the right-hand side of the as operator for the same reason (line #7): this operator casts the left-hand side to the type specified in the right-hand side. Additionally, your function doesn't seem to return anything, so returning a useful value from it won't work.