func objectKind(obj types.Object) string { switch obj := obj.(type) { case *types.PkgName: return "imported package name" case *types.TypeName: return "type" case *types.Var: if obj.IsField() { return "field" } case *types.Func: if obj.Type().(*types.Signature).Recv() != nil { return "method" } } // label, func, var, const return strings.ToLower(strings.TrimPrefix(reflect.TypeOf(obj).String(), "*types.")) }