Not compatible with stdlib for nil maps and slices

[thockin]

package main                                                                                                        

import (
    "encoding/json"
    "fmt"
    "reflect"

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

type Ttest map[string]string

func main() {
    fn := func(name string, marshal func(interface{}) ([]byte, error), obj interface{}) []byte {
        jb, err := marshal(obj)
        if err != nil {
            fmt.Printf("%s failed to marshal:\n  error: %v\n", name, err)
            return nil 
        }   
        return jb
    }   
    var obj1 Ttest
    jb1 := fn("json", json.Marshal, &obj1)
    var obj2 Ttest
    jb2 := fn("jsoniter", jsoniter.Marshal, &obj2)
    if !reflect.DeepEqual(jb1, jb2) {
        fmt.Printf("results differ:\n  expected: %q\n       got: %q\n", string(jb1), string(jb2))
    }   
}

yields:

results differ:
  expected: "null"
       got: "{}"

Changing map to slice also produces differences:

results differ:
  expected: "null"
       got: "[]"

[taowen]

should be fixed now