Go类型的代码生成/语法表示

Question

In Go std lib there're some way to pretty printing object into a Go-Syntax representation, for example,here'd how to pretty print a value,

https://play.golang.org/p/hztlPEf1If

so is there any way to dump definition of a type? If no, what's the challenges behind to stop having this feature.

Answer 1

I write little reflection function that maybe it help you. Please check :

package main

import (
    "fmt"
    "reflect"
)

type S struct {
    A string
    B int
    c bool
    d float64
    e struct {
          f int
      }
}

func main() {
    var s S
    MagicPrint(&s)
}

func MagicPrint(t interface{}) {
    typeOfT := reflect.TypeOf(t).Elem()
    fmt.Println("type", typeOfT.Name(), " struct {")

    for i := 0; i < typeOfT.NumField(); i++ {
        f := typeOfT.Field(i)
        fmt.Printf("%s %s
", f.Name, f.Type)
    }
    fmt.Println("}")
}

Check in Go Playground