Add slices/ helper pkg

slices/slices.go

@@ -0,0 +1,29 @@
+package slices
+
+import "reflect"
+
+type ToInterfaceSlicer interface {
+	ToInterfaceSlice() []interface{}
+}
+
+func ToInterfaceSlice(slice interface{}) (resp []interface{}) {
+	if iSlicer, ok := slice.(ToInterfaceSlicer); ok {
+		return iSlicer.ToInterfaceSlice()
+	}
+
+	v := reflect.ValueOf(slice)
+	t := v.Type()
+	if t.Kind() != reflect.Slice {
+		panic("ToInterfaceSlice function only works with a slice as argument")
+	}
+
+	if t.Kind() != reflect.Slice {
+		panic("type must be a slice!")
+	}
+
+	for i := 0; i < v.Len(); i++ {
+		resp = append(resp, v.Index(i).Interface())
+	}
+
+	return resp
+}