Go - Advanced Go Features - reflect package, structure

Go Systems Programming:
Master Linux and Unix
system level programming with Go
楽天ブックス 紀伊國屋書店

開発環境

• macOS Catalina - Apple (OS)
• Emacs (Text Editor)
• Windows 10 Pro (OS)
• Visual Studio Code (Text Editor)
• Go (プログラミング言語)

Go Systems Programming: Master Linux and Unix system level programming with Go (Mihalis Tsoukalos(著)、Packt Publishing)のChapter 3(Advanced Go Features)、Exercises 11.の解答を求めてみる。

コード

package main

import (
 "fmt"
 "reflect"
)

type coordinate int
type car struct {
 lat, long coordinate
 name      string
}

func main() {
 c := car{lat: 2, long: 3, name: "Car"}
 v := reflect.ValueOf(&c)
 e := v.Elem()
 t := e.Type()
 fmt.Printf("ValueOf: %v\nElem: %v\nType: %v\n", v, e, t)
 for i := 0; i < e.NumField(); i++ {
  fmt.Printf("%v, Field Name: %v, Type: %v\n",
   i, t.Field(i).Name, e.Field(i).Type())
 }
}

入出力結果(Zsh、PowerShell、Terminal)

% go run main.go
ValueOf: &{2 3 Car}
Elem: {2 3 Car}
Type: main.car
0, Field Name: lat, Type: main.coordinate
1, Field Name: long, Type: main.coordinate
2, Field Name: name, Type: string
%