How to use JSON parser

[devoid]

I am having trouble understanding how the json packages should be used. I can't seem to get a valid AST out of a struct. The following prints invalid HCL (at least I think) and then panics during the Decode step.

package main

import (
    "bytes"
    "fmt"

    "github.com/hashicorp/hcl"
    "github.com/hashicorp/hcl/hcl/printer"
    "github.com/hashicorp/hcl/json/parser"
)

type Body struct {
    Fruits []Fruit `json:"fruits" hcl:"fruits"`
}

type Fruit struct {
    Name string `json:"name"`
}

func main() {
    text := `
{
    "fruits" : [
        { "name" : "apple" },
        { "name" : "orange" },
        { "name" : "pear" }
    ]
}`
    ast, err := parser.Parse([]byte(text))
    if err != nil {
        panic(err)
    }

    buff := bytes.NewBuffer(nil)
    printer.Fprint(buff, ast)
    fmt.Println("HCL:")
    fmt.Printf("%s\n", buff.String())

    b := &Body{}
    err = hcl.Decode(&b, buff.String())
    if err != nil {
        panic(err)
    }
}

[promiseofcake]

I have the same question. 🤔