marshal an object with not export self pointer reference will run forever

[bronze1man]

package main

import (
	"github.com/hjson/hjson-go"
	"fmt"
)

func main(){
	type Node struct{
		self *Node
	}
	var obj Node
	obj.self = &obj
	b,err:=hjson.Marshal(obj)
	if err!=nil{
		panic(err)
	}
	fmt.Println(string(b))
}

It should ignore all not export field.

[trobro]

Currently hjson-go does marshal all private struct members. Removing that behavior would be a breaking change. I would rather mention in the Readme.md that circular references will cause the Marshal function to loop forever.

[bronze1man]

Thanks, I do not know that reflect can read private field value yet.
Ok.I will maintain my version of hjson-go to fit my need.

[trobro]

I realize now that there is no documentation of the fact that Hjson supports json-annotation of structs. You can choose to skip the field self in the struct like this, which fixes the problem with the infinite loop:

type Node struct{
	self *Node `json:"-"`
}

[bronze1man]

The current behavior is not consistent with json.Marshal of such an object.
New user will be surprised by this behavior