AST에서 Go 소스 코드를 생성하는 방법은 무엇입니까?

<code class="go">package main

import (

        "go/parser"

        "go/printer"

        "go/token"

        "os"

)

func main() {

        // src represents the input source code for which we want to print the AST.

        src := `

package main

func main() {

        println("Hello, World!")

}

`

        // Create the AST by parsing src.

        fset := token.NewFileSet() // positions are relative to fset

        f, err := parser.ParseFile(fset, "", src, 0)

        if err != nil {

                panic(err)

        }

        printer.Fprint(os.Stdout, fset, f)

}</code>

package main

func main() {

        println("Hello, World!")

}