circular data structures when encoding

[cloverstd]

package main

import jsoniter "github.com/json-iterator/go"

var json = jsoniter.ConfigCompatibleWithStandardLibrary

func main() {

	a := &A{}
	a.B1 = &B{a}
	ping := &Ping{a}

	json.Marshal(ping)

}

type Ping struct {
	Pong *A
}

type A struct {
	B1 *B
}

type B struct {
	A1 *A
}

This code will panic with runtime: goroutine stack exceeds 1000000000-byte limit

Platform: go version go1.9 darwin/amd64

ref golang/go#10769

[taowen]

jsoniter is compatible with encoding/json. If this is fixed in encoding/json, I will fix it as well.

Tracking recursion is possible in user extension, for example: https://github.com/v2pro/plz/blob/master/witch/exporter.go

The Attachment field in Stream and Iterator is added to support this kind of tracking

[MoZhonghua]

@taowen this has been fixed in encoding/json, see https://go-review.googlesource.com/c/go/+/187920

[machooo-x]

It is still not supported.

[WenRuige]

It is still not supported