walk: refacto

walk/walk.go

@@ -7,22 +7,18 @@ import (
 func Walk(x interface{}, fn func(string)) {
 	val := getValue(x)
 
-	for i := 0; i < val.NumField(); i++ {
+	switch val.Kind() {
-		field := val.Field(i)
+	case reflect.Struct:
-
+		for i := 0; i < val.NumField(); i++ {
-		if val.Kind() == reflect.Slice {
-			for i := 0; i < val.Len(); i++ {
-				Walk(val.Index(i).Interface(), fn)
-			}
-		}
-
-		switch field.Kind() {
-		case reflect.String:
-			fn(field.String())
-		case reflect.Struct:
 			// XXX: Interface() to get interface
-			Walk(field.Interface(), fn)
+			Walk(val.Field(i).Interface(), fn)
 		}
+	case reflect.Slice:
+		for i := 0; i < val.Len(); i++ {
+			Walk(val.Index(i).Interface(), fn)
+		}
+	case reflect.String:
+		fn(val.String())
 	}
 }