jsoniter crash on custom map encoders

[sreekanth-cb]

Seeing a crash with custom map encoders with jsoniter. The same works fine with std json.
Attaching the code.

package main

import (
	"encoding/json"
	"fmt"
	"unsafe"

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

func jsoniterMarshal(input Status) {
	bb, err := jsoniter.Marshal(&input)
	if err != nil {
		fmt.Printf("JSONITER Error %v \n", err)
		return
	}
	fmt.Printf("JSONITER Res %s  \n", bb)
}

func jsonMarshal(input Status) {
	bb, err := json.Marshal(&input)
	if err != nil {
		fmt.Printf("JSON Error %v \n", err)
		return
	}
	fmt.Printf("JSON Res %s  \n", bb)
}

type ErrMap map[string]error

type Status struct {
	Total   int    `json:"total"`
	ErrMaps ErrMap `json:"errMaps,omitempty"`
}

func (iem ErrMap) MarshalJSON() ([]byte, error) {
	tmp := make(map[string]string, len(iem))
	for k, v := range iem {
		tmp[k] = v.Error()
	}
	return json.Marshal(tmp)
}

func encodeMap(ptr unsafe.Pointer, stream *jsoniter.Stream) {
	iem := *((*ErrMap)(ptr))
	//log.Printf("\nval-> %+v", iem)
	if iem != nil {
		tmp := make(map[string]string, len(iem))
		for k, v := range iem {
			tmp[k] = v.Error()
		}
		stream.WriteVal(tmp)
	}
}

func main() {
	jsoniter.RegisterTypeEncoderFunc("main.ErrMap", encodeMap, nil)

	eMap := make(ErrMap, 2)
	eMap["first"] = fmt.Errorf("First Error")
	eMap["second"] = fmt.Errorf("Second Error")
	s := Status{Total: 100,
		ErrMaps: eMap}

	jsonMarshal(s)
	jsoniterMarshal(s)

}

[taowen]

fixed by 2307887

[sreekanth-cb]

Whoops..I still see the same crash for the above program.
Can you please confirm this?
goroutine 1 [running]:
main.encodeMap(0xc42007c4e0, 0xc420074360)
/Users/sreekanth/jsoniter/mapFails.go:48 +0x48
github.com/json-iterator/go.(*funcEncoder).Encode(0xc420076250, 0xc42007c4e0, 0xc420074360)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect_extension.go:99 +0x3d
github.com/json-iterator/go.(*optionalMapEncoder).Encode(0xc4200764b0, 0xc4200763e8, 0xc420074360)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect.go:144 +0x4f
github.com/json-iterator/go.(*structFieldEncoder).Encode(0xc420070420, 0xc4200763e0, 0xc420074360)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect_object.go:118 +0x5c
github.com/json-iterator/go.(*structEncoder).Encode(0xc4200704c0, 0xc4200763e0, 0xc420074360)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect_object.go:155 +0xc2
github.com/json-iterator/go.(*OptionalEncoder).Encode(0xc420076510, 0xc420076528, 0xc420074360)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect.go:124 +0x4f
github.com/json-iterator/go.WriteToStream(0x10fad60, 0xc4200763e0, 0xc420074360, 0x11c3c80, 0xc420076510)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect.go:47 +0xd5
github.com/json-iterator/go.(*OptionalEncoder).EncodeInterface(0xc420076510, 0x10fad60, 0xc4200763e0, 0xc420074360)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect.go:129 +0x55
github.com/json-iterator/go.(*Stream).WriteVal(0xc420074360, 0x10fad60, 0xc4200763e0)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_reflect.go:252 +0xe4
github.com/json-iterator/go.(*frozenConfig).Marshal(0xc420096100, 0x10fad60, 0xc4200763e0, 0x0, 0x0, 0x0, 0x0, 0x0)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_config.go:263 +0xdb
github.com/json-iterator/go.Marshal(0x10fad60, 0xc4200763e0, 0xc420041ea8, 0x1, 0x1, 0x53, 0x0)
/Users/sreekanth/workspace_fix_json/godeps/src/github.com/json-iterator/go/feature_adapter.go:43 +0x49
main.jsoniterMarshal(0x64, 0xc42007c4e0)
/Users/sreekanth/jsoniter/mapFails.go:12 +0x87
main.main()
/Users/sreekanth/jsoniter/mapFails.go:66 +0x296
exit status 2