传递任意结构作为函数参数

I'm processing binary files. I need a function which takes an arbitrary structure and returns an array of those structures. How would I do this? Below is a simple example of what I'm trying to accomplish. Currently, I have a function for each of the structures. The only difference is in the line:

dataBuf, err := make([]arbitrary_struct_type, numRecs)

type structA struct {
   id int32
   sDate float64
   name  string
}

type structB struct {
   area int32
   polygon string
}

type structC struct {
   sTime  float64
   eTime  float64
   tSlice int32
   kml    string
}

func readDataset(grp *Group, arbitrary_struct_type type) ([]arbitrary_struct_type type, error) {
   ...
   dataBuf, err := make([]arbitrary_struct_type, numRecs)
   ...
   return dataBuf, err
}

func main() {
   ...
   a, err := readDataset(grp1, structA)
   ...
   b, err := readDataset(grp2, structB)
   ...
   c, err := readDataset(grp3, structC)
   ...
}

You probably want to return a slice and not an array.

You can use reflect.MakeSlice() function to make slice, and to get type of the arbitrary object you can use reflect.TypeOf() function

I'm doing something similar in https://github.com/strongo/app/blob/master/db/interfaces.go & https://github.com/strongo/app/blob/master/gaedb/database.go which are used in https://github.com/strongo/bots-framework