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#164 support interface{} with ptr

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This commit is contained in:
Tao Wen 2017-09-09 08:45:57 +08:00
parent 8c7fc7584a
commit 0828e559d0
2 changed files with 23 additions and 1 deletions
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8
feature_reflect_native.go
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@ -5,6 +5,7 @@ import (
"encoding/base64" "encoding/base64"
"encoding/json" "encoding/json"
"unsafe" "unsafe"
"reflect"
) )
type stringCodec struct { type stringCodec struct {
@ -349,7 +350,12 @@ type emptyInterfaceCodec struct {
} }
func (codec *emptyInterfaceCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { func (codec *emptyInterfaceCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
*((*interface{})(ptr)) = iter.Read() existing := *((*interface{})(ptr))
if existing != nil && reflect.TypeOf(existing).Kind() == reflect.Ptr {
iter.ReadVal(existing)
} else {
*((*interface{})(ptr)) = iter.Read()
}
} }
func (codec *emptyInterfaceCodec) Encode(ptr unsafe.Pointer, stream *Stream) { func (codec *emptyInterfaceCodec) Encode(ptr unsafe.Pointer, stream *Stream) {

16
jsoniter_interface_test.go
View File

@ -5,6 +5,7 @@ import (
"github.com/stretchr/testify/require" "github.com/stretchr/testify/require"
"testing" "testing"
"unsafe" "unsafe"
"fmt"
) )
func Test_write_array_of_interface(t *testing.T) { func Test_write_array_of_interface(t *testing.T) {
@ -297,3 +298,18 @@ func Test_array_with_nothing(t *testing.T) {
should.Nil(err) should.Nil(err)
should.Equal(`[null,null]`, output) should.Equal(`[null,null]`, output)
} }
func Test_unmarshal_ptr_to_interface(t *testing.T) {
type TestData struct {
Name string `json:"name"`
}
should := require.New(t)
var obj interface{} = &TestData{}
err := json.Unmarshal([]byte(`{"name":"value"}`), &obj)
should.Nil(err)
should.Equal("&{value}", fmt.Sprintf("%v", obj))
obj = interface{}(&TestData{})
err = Unmarshal([]byte(`{"name":"value"}`), &obj)
should.Nil(err)
should.Equal("&{value}", fmt.Sprintf("%v", obj))
}