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Merge pull request #169 from toffaletti/fix-nil-interface

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Fix handling of nil empty interface
This commit is contained in:
Tao Wen 2017-09-15 00:45:11 -05:00 committed by GitHub
commit eef35e549b
2 changed files with 21 additions and 1 deletions
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3
feature_reflect_native.go
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@ -373,7 +373,8 @@ func (codec *emptyInterfaceCodec) EncodeInterface(val interface{}, stream *Strea
}
func (codec *emptyInterfaceCodec) IsEmpty(ptr unsafe.Pointer) bool {
return ptr == nil
emptyInterface := (*emptyInterface)(ptr)
return emptyInterface.typ == nil
}
type nonEmptyInterfaceCodec struct {

19
jsoniter_interface_test.go
View File

@ -351,3 +351,22 @@ func Test_nil_out_null_interface(t *testing.T) {
should.Equal(nil, err)
should.Equal(nil, obj2.Field)
}
func Test_omitempty_nil_interface(t *testing.T) {
type TestData struct {
Field interface{} `json:"field,omitempty"`
}
should := require.New(t)
obj := TestData{
Field: nil,
}
js, err := json.Marshal(obj)
should.Equal(nil, err)
should.Equal("{}", string(js))
str, err := MarshalToString(obj)
should.Equal(nil, err)
should.Equal(string(js), str)
}