This repository was archived by the owner on Dec 15, 2025. It is now read-only.
This repository was archived by the owner on Dec 15, 2025. It is now read-only.
BUG: Parsing structure stack overflow for loop references #696
Description
follow code cause stack overflow
import (
"fmt"
jsoniter "github.com/json-iterator/go"
"testing"
)
type A struct {
B *B `json:"b"`
}
type B struct {
A *A `json:"a"`
}
func TestJSON(t *testing.T) {
var a = A{}
var b = B{}
a.B = &b
b.A = &a
var ji = jsoniter.ConfigCompatibleWithStandardLibrary
data, _ := ji.Marshal(a)
fmt.Println(string(data))
}output:
runtime: goroutine stack exceeds 1000000000-byte limit
runtime: sp=0x140206c03b0 stack=[0x140206c0000, 0x140406c0000]
fatal error: stack overflow
runtime stack:
runtime.throw({0x1050e5fbb?, 0x105aa7f00?})
/usr/local/go/src/runtime/panic.go:1047 +0x40 fp=0x16ff2ad50 sp=0x16ff2ad20 pc=0x10476af30
runtime.newstack()
/usr/local/go/src/runtime/stack.go:1105 +0x468 fp=0x16ff2af00 sp=0x16ff2ad50 pc=0x104785bb8
runtime.morestack()
/usr/local/go/src/runtime/asm_arm64.s:316 +0x70 fp=0x16ff2af00 sp=0x16ff2af00 pc=0x10479fd10
...but official package can handle this issue normally
code:
import (
gojson "encoding/json"
"fmt"
"testing"
)
type A struct {
B *B `json:"b"`
}
type B struct {
A *A `json:"a"`
}
func TestJSON(t *testing.T) {
var a = A{}
var b = B{}
a.B = &b
b.A = &a
data, _ := gojson.Marshal(a)
fmt.Println(string(data))
}out:
=== RUN TestJSON
--- PASS: TestJSON (0.00s)
PASS