tests

import groovy.transform.Canonical

def varargsMethod(String ... args){
    args
}

Set set = ['a','b', 'c']

def array = varargsMethod(* (set as List))
assert (array as List).containsAll(set)
assert array instanceof String[]


class FunctionCall{
    String name
    List parameters

    private def varargs(String ... args){
        args
    }

    def callFunc(String name, parameters){
        def keys = varargs(* (parameters as List))
        String construct = "$name($keys)"
        return construct
    }

}

@Canonical
class creator {

    String functionName
    List functionParameters

    Functioncall theFunction = new Functioncall()


    def generator() {}

    theFunctionCall.name = "some"
    }

}