From af64e10400f8533a0c48ecdf5ab9b7fbf329e14e Mon Sep 17 00:00:00 2001 From: Daniel J Walsh Date: Mon, 26 Mar 2018 18:26:55 -0400 Subject: Vendor in lots of kubernetes stuff to shrink image size Signed-off-by: Daniel J Walsh Closes: #554 Approved by: mheon --- .../github.com/json-iterator/go/feature_reflect.go | 691 +++++++++++++++++++++ 1 file changed, 691 insertions(+) create mode 100644 vendor/github.com/json-iterator/go/feature_reflect.go (limited to 'vendor/github.com/json-iterator/go/feature_reflect.go') diff --git a/vendor/github.com/json-iterator/go/feature_reflect.go b/vendor/github.com/json-iterator/go/feature_reflect.go new file mode 100644 index 000000000..05d91b49c --- /dev/null +++ b/vendor/github.com/json-iterator/go/feature_reflect.go @@ -0,0 +1,691 @@ +package jsoniter + +import ( + "encoding" + "encoding/json" + "fmt" + "reflect" + "time" + "unsafe" +) + +// ValDecoder is an internal type registered to cache as needed. +// Don't confuse jsoniter.ValDecoder with json.Decoder. +// For json.Decoder's adapter, refer to jsoniter.AdapterDecoder(todo link). +// +// Reflection on type to create decoders, which is then cached +// Reflection on value is avoided as we can, as the reflect.Value itself will allocate, with following exceptions +// 1. create instance of new value, for example *int will need a int to be allocated +// 2. append to slice, if the existing cap is not enough, allocate will be done using Reflect.New +// 3. assignment to map, both key and value will be reflect.Value +// For a simple struct binding, it will be reflect.Value free and allocation free +type ValDecoder interface { + Decode(ptr unsafe.Pointer, iter *Iterator) +} + +// ValEncoder is an internal type registered to cache as needed. +// Don't confuse jsoniter.ValEncoder with json.Encoder. +// For json.Encoder's adapter, refer to jsoniter.AdapterEncoder(todo godoc link). +type ValEncoder interface { + IsEmpty(ptr unsafe.Pointer) bool + Encode(ptr unsafe.Pointer, stream *Stream) + EncodeInterface(val interface{}, stream *Stream) +} + +type checkIsEmpty interface { + IsEmpty(ptr unsafe.Pointer) bool +} + +// WriteToStream the default implementation for TypeEncoder method EncodeInterface +func WriteToStream(val interface{}, stream *Stream, encoder ValEncoder) { + e := (*emptyInterface)(unsafe.Pointer(&val)) + if e.word == nil { + stream.WriteNil() + return + } + if reflect.TypeOf(val).Kind() == reflect.Ptr { + encoder.Encode(unsafe.Pointer(&e.word), stream) + } else { + encoder.Encode(e.word, stream) + } +} + +var jsonNumberType reflect.Type +var jsoniterNumberType reflect.Type +var jsonRawMessageType reflect.Type +var jsoniterRawMessageType reflect.Type +var anyType reflect.Type +var marshalerType reflect.Type +var unmarshalerType reflect.Type +var textMarshalerType reflect.Type +var textUnmarshalerType reflect.Type + +func init() { + jsonNumberType = reflect.TypeOf((*json.Number)(nil)).Elem() + jsoniterNumberType = reflect.TypeOf((*Number)(nil)).Elem() + jsonRawMessageType = reflect.TypeOf((*json.RawMessage)(nil)).Elem() + jsoniterRawMessageType = reflect.TypeOf((*RawMessage)(nil)).Elem() + anyType = reflect.TypeOf((*Any)(nil)).Elem() + marshalerType = reflect.TypeOf((*json.Marshaler)(nil)).Elem() + unmarshalerType = reflect.TypeOf((*json.Unmarshaler)(nil)).Elem() + textMarshalerType = reflect.TypeOf((*encoding.TextMarshaler)(nil)).Elem() + textUnmarshalerType = reflect.TypeOf((*encoding.TextUnmarshaler)(nil)).Elem() +} + +type optionalDecoder struct { + valueType reflect.Type + valueDecoder ValDecoder +} + +func (decoder *optionalDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { + if iter.ReadNil() { + *((*unsafe.Pointer)(ptr)) = nil + } else { + if *((*unsafe.Pointer)(ptr)) == nil { + //pointer to null, we have to allocate memory to hold the value + value := reflect.New(decoder.valueType) + newPtr := extractInterface(value.Interface()).word + decoder.valueDecoder.Decode(newPtr, iter) + *((*uintptr)(ptr)) = uintptr(newPtr) + } else { + //reuse existing instance + decoder.valueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter) + } + } +} + +type deferenceDecoder struct { + // only to deference a pointer + valueType reflect.Type + valueDecoder ValDecoder +} + +func (decoder *deferenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { + if *((*unsafe.Pointer)(ptr)) == nil { + //pointer to null, we have to allocate memory to hold the value + value := reflect.New(decoder.valueType) + newPtr := extractInterface(value.Interface()).word + decoder.valueDecoder.Decode(newPtr, iter) + *((*uintptr)(ptr)) = uintptr(newPtr) + } else { + //reuse existing instance + decoder.valueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter) + } +} + +type optionalEncoder struct { + valueEncoder ValEncoder +} + +func (encoder *optionalEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + if *((*unsafe.Pointer)(ptr)) == nil { + stream.WriteNil() + } else { + encoder.valueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream) + } +} + +func (encoder *optionalEncoder) EncodeInterface(val interface{}, stream *Stream) { + WriteToStream(val, stream, encoder) +} + +func (encoder *optionalEncoder) IsEmpty(ptr unsafe.Pointer) bool { + if *((*unsafe.Pointer)(ptr)) == nil { + return true + } + return false +} + +type placeholderEncoder struct { + cfg *frozenConfig + cacheKey reflect.Type +} + +func (encoder *placeholderEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + encoder.getRealEncoder().Encode(ptr, stream) +} + +func (encoder *placeholderEncoder) EncodeInterface(val interface{}, stream *Stream) { + WriteToStream(val, stream, encoder) +} + +func (encoder *placeholderEncoder) IsEmpty(ptr unsafe.Pointer) bool { + return encoder.getRealEncoder().IsEmpty(ptr) +} + +func (encoder *placeholderEncoder) getRealEncoder() ValEncoder { + for i := 0; i < 30; i++ { + realDecoder := encoder.cfg.getEncoderFromCache(encoder.cacheKey) + _, isPlaceholder := realDecoder.(*placeholderEncoder) + if isPlaceholder { + time.Sleep(time.Second) + } else { + return realDecoder + } + } + panic(fmt.Sprintf("real encoder not found for cache key: %v", encoder.cacheKey)) +} + +type placeholderDecoder struct { + cfg *frozenConfig + cacheKey reflect.Type +} + +func (decoder *placeholderDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { + for i := 0; i < 30; i++ { + realDecoder := decoder.cfg.getDecoderFromCache(decoder.cacheKey) + _, isPlaceholder := realDecoder.(*placeholderDecoder) + if isPlaceholder { + time.Sleep(time.Second) + } else { + realDecoder.Decode(ptr, iter) + return + } + } + panic(fmt.Sprintf("real decoder not found for cache key: %v", decoder.cacheKey)) +} + +// emptyInterface is the header for an interface{} value. +type emptyInterface struct { + typ unsafe.Pointer + word unsafe.Pointer +} + +// emptyInterface is the header for an interface with method (not interface{}) +type nonEmptyInterface struct { + // see ../runtime/iface.go:/Itab + itab *struct { + ityp unsafe.Pointer // static interface type + typ unsafe.Pointer // dynamic concrete type + link unsafe.Pointer + bad int32 + unused int32 + fun [100000]unsafe.Pointer // method table + } + word unsafe.Pointer +} + +// ReadVal copy the underlying JSON into go interface, same as json.Unmarshal +func (iter *Iterator) ReadVal(obj interface{}) { + typ := reflect.TypeOf(obj) + cacheKey := typ.Elem() + decoder, err := decoderOfType(iter.cfg, cacheKey) + if err != nil { + iter.Error = err + return + } + e := (*emptyInterface)(unsafe.Pointer(&obj)) + decoder.Decode(e.word, iter) +} + +// WriteVal copy the go interface into underlying JSON, same as json.Marshal +func (stream *Stream) WriteVal(val interface{}) { + if nil == val { + stream.WriteNil() + return + } + typ := reflect.TypeOf(val) + cacheKey := typ + encoder, err := encoderOfType(stream.cfg, cacheKey) + if err != nil { + stream.Error = err + return + } + encoder.EncodeInterface(val, stream) +} + +type prefix string + +func (p prefix) addToDecoder(decoder ValDecoder, err error) (ValDecoder, error) { + if err != nil { + return nil, fmt.Errorf("%s: %s", p, err.Error()) + } + return decoder, err +} + +func (p prefix) addToEncoder(encoder ValEncoder, err error) (ValEncoder, error) { + if err != nil { + return nil, fmt.Errorf("%s: %s", p, err.Error()) + } + return encoder, err +} + +func decoderOfType(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error) { + cacheKey := typ + decoder := cfg.getDecoderFromCache(cacheKey) + if decoder != nil { + return decoder, nil + } + decoder = getTypeDecoderFromExtension(typ) + if decoder != nil { + cfg.addDecoderToCache(cacheKey, decoder) + return decoder, nil + } + decoder = &placeholderDecoder{cfg: cfg, cacheKey: cacheKey} + cfg.addDecoderToCache(cacheKey, decoder) + decoder, err := createDecoderOfType(cfg, typ) + for _, extension := range extensions { + decoder = extension.DecorateDecoder(typ, decoder) + } + cfg.addDecoderToCache(cacheKey, decoder) + return decoder, err +} + +func createDecoderOfType(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error) { + typeName := typ.String() + if typ == jsonRawMessageType { + return &jsonRawMessageCodec{}, nil + } + if typ == jsoniterRawMessageType { + return &jsoniterRawMessageCodec{}, nil + } + if typ.AssignableTo(jsonNumberType) { + return &jsonNumberCodec{}, nil + } + if typ.AssignableTo(jsoniterNumberType) { + return &jsoniterNumberCodec{}, nil + } + if typ.Implements(unmarshalerType) { + templateInterface := reflect.New(typ).Elem().Interface() + var decoder ValDecoder = &unmarshalerDecoder{extractInterface(templateInterface)} + if typ.Kind() == reflect.Ptr { + decoder = &optionalDecoder{typ.Elem(), decoder} + } + return decoder, nil + } + if reflect.PtrTo(typ).Implements(unmarshalerType) { + templateInterface := reflect.New(typ).Interface() + var decoder ValDecoder = &unmarshalerDecoder{extractInterface(templateInterface)} + return decoder, nil + } + if typ.Implements(textUnmarshalerType) { + templateInterface := reflect.New(typ).Elem().Interface() + var decoder ValDecoder = &textUnmarshalerDecoder{extractInterface(templateInterface)} + if typ.Kind() == reflect.Ptr { + decoder = &optionalDecoder{typ.Elem(), decoder} + } + return decoder, nil + } + if reflect.PtrTo(typ).Implements(textUnmarshalerType) { + templateInterface := reflect.New(typ).Interface() + var decoder ValDecoder = &textUnmarshalerDecoder{extractInterface(templateInterface)} + return decoder, nil + } + if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 { + sliceDecoder, err := prefix("[slice]").addToDecoder(decoderOfSlice(cfg, typ)) + if err != nil { + return nil, err + } + return &base64Codec{sliceDecoder: sliceDecoder}, nil + } + if typ.Implements(anyType) { + return &anyCodec{}, nil + } + switch typ.Kind() { + case reflect.String: + if typeName != "string" { + return decoderOfType(cfg, reflect.TypeOf((*string)(nil)).Elem()) + } + return &stringCodec{}, nil + case reflect.Int: + if typeName != "int" { + return decoderOfType(cfg, reflect.TypeOf((*int)(nil)).Elem()) + } + return &intCodec{}, nil + case reflect.Int8: + if typeName != "int8" { + return decoderOfType(cfg, reflect.TypeOf((*int8)(nil)).Elem()) + } + return &int8Codec{}, nil + case reflect.Int16: + if typeName != "int16" { + return decoderOfType(cfg, reflect.TypeOf((*int16)(nil)).Elem()) + } + return &int16Codec{}, nil + case reflect.Int32: + if typeName != "int32" { + return decoderOfType(cfg, reflect.TypeOf((*int32)(nil)).Elem()) + } + return &int32Codec{}, nil + case reflect.Int64: + if typeName != "int64" { + return decoderOfType(cfg, reflect.TypeOf((*int64)(nil)).Elem()) + } + return &int64Codec{}, nil + case reflect.Uint: + if typeName != "uint" { + return decoderOfType(cfg, reflect.TypeOf((*uint)(nil)).Elem()) + } + return &uintCodec{}, nil + case reflect.Uint8: + if typeName != "uint8" { + return decoderOfType(cfg, reflect.TypeOf((*uint8)(nil)).Elem()) + } + return &uint8Codec{}, nil + case reflect.Uint16: + if typeName != "uint16" { + return decoderOfType(cfg, reflect.TypeOf((*uint16)(nil)).Elem()) + } + return &uint16Codec{}, nil + case reflect.Uint32: + if typeName != "uint32" { + return decoderOfType(cfg, reflect.TypeOf((*uint32)(nil)).Elem()) + } + return &uint32Codec{}, nil + case reflect.Uintptr: + if typeName != "uintptr" { + return decoderOfType(cfg, reflect.TypeOf((*uintptr)(nil)).Elem()) + } + return &uintptrCodec{}, nil + case reflect.Uint64: + if typeName != "uint64" { + return decoderOfType(cfg, reflect.TypeOf((*uint64)(nil)).Elem()) + } + return &uint64Codec{}, nil + case reflect.Float32: + if typeName != "float32" { + return decoderOfType(cfg, reflect.TypeOf((*float32)(nil)).Elem()) + } + return &float32Codec{}, nil + case reflect.Float64: + if typeName != "float64" { + return decoderOfType(cfg, reflect.TypeOf((*float64)(nil)).Elem()) + } + return &float64Codec{}, nil + case reflect.Bool: + if typeName != "bool" { + return decoderOfType(cfg, reflect.TypeOf((*bool)(nil)).Elem()) + } + return &boolCodec{}, nil + case reflect.Interface: + if typ.NumMethod() == 0 { + return &emptyInterfaceCodec{}, nil + } + return &nonEmptyInterfaceCodec{}, nil + case reflect.Struct: + return prefix(fmt.Sprintf("[%s]", typeName)).addToDecoder(decoderOfStruct(cfg, typ)) + case reflect.Array: + return prefix("[array]").addToDecoder(decoderOfArray(cfg, typ)) + case reflect.Slice: + return prefix("[slice]").addToDecoder(decoderOfSlice(cfg, typ)) + case reflect.Map: + return prefix("[map]").addToDecoder(decoderOfMap(cfg, typ)) + case reflect.Ptr: + return prefix("[optional]").addToDecoder(decoderOfOptional(cfg, typ)) + default: + return nil, fmt.Errorf("unsupported type: %v", typ) + } +} + +func encoderOfType(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) { + cacheKey := typ + encoder := cfg.getEncoderFromCache(cacheKey) + if encoder != nil { + return encoder, nil + } + encoder = getTypeEncoderFromExtension(typ) + if encoder != nil { + cfg.addEncoderToCache(cacheKey, encoder) + return encoder, nil + } + encoder = &placeholderEncoder{cfg: cfg, cacheKey: cacheKey} + cfg.addEncoderToCache(cacheKey, encoder) + encoder, err := createEncoderOfType(cfg, typ) + for _, extension := range extensions { + encoder = extension.DecorateEncoder(typ, encoder) + } + cfg.addEncoderToCache(cacheKey, encoder) + return encoder, err +} + +func createEncoderOfType(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) { + if typ == jsonRawMessageType { + return &jsonRawMessageCodec{}, nil + } + if typ == jsoniterRawMessageType { + return &jsoniterRawMessageCodec{}, nil + } + if typ.AssignableTo(jsonNumberType) { + return &jsonNumberCodec{}, nil + } + if typ.AssignableTo(jsoniterNumberType) { + return &jsoniterNumberCodec{}, nil + } + if typ.Implements(marshalerType) { + checkIsEmpty, err := createCheckIsEmpty(typ) + if err != nil { + return nil, err + } + templateInterface := reflect.New(typ).Elem().Interface() + var encoder ValEncoder = &marshalerEncoder{ + templateInterface: extractInterface(templateInterface), + checkIsEmpty: checkIsEmpty, + } + if typ.Kind() == reflect.Ptr { + encoder = &optionalEncoder{encoder} + } + return encoder, nil + } + if typ.Implements(textMarshalerType) { + checkIsEmpty, err := createCheckIsEmpty(typ) + if err != nil { + return nil, err + } + templateInterface := reflect.New(typ).Elem().Interface() + var encoder ValEncoder = &textMarshalerEncoder{ + templateInterface: extractInterface(templateInterface), + checkIsEmpty: checkIsEmpty, + } + if typ.Kind() == reflect.Ptr { + encoder = &optionalEncoder{encoder} + } + return encoder, nil + } + if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 { + return &base64Codec{}, nil + } + if typ.Implements(anyType) { + return &anyCodec{}, nil + } + return createEncoderOfSimpleType(cfg, typ) +} + +func createCheckIsEmpty(typ reflect.Type) (checkIsEmpty, error) { + kind := typ.Kind() + switch kind { + case reflect.String: + return &stringCodec{}, nil + case reflect.Int: + return &intCodec{}, nil + case reflect.Int8: + return &int8Codec{}, nil + case reflect.Int16: + return &int16Codec{}, nil + case reflect.Int32: + return &int32Codec{}, nil + case reflect.Int64: + return &int64Codec{}, nil + case reflect.Uint: + return &uintCodec{}, nil + case reflect.Uint8: + return &uint8Codec{}, nil + case reflect.Uint16: + return &uint16Codec{}, nil + case reflect.Uint32: + return &uint32Codec{}, nil + case reflect.Uintptr: + return &uintptrCodec{}, nil + case reflect.Uint64: + return &uint64Codec{}, nil + case reflect.Float32: + return &float32Codec{}, nil + case reflect.Float64: + return &float64Codec{}, nil + case reflect.Bool: + return &boolCodec{}, nil + case reflect.Interface: + if typ.NumMethod() == 0 { + return &emptyInterfaceCodec{}, nil + } + return &nonEmptyInterfaceCodec{}, nil + case reflect.Struct: + return &structEncoder{}, nil + case reflect.Array: + return &arrayEncoder{}, nil + case reflect.Slice: + return &sliceEncoder{}, nil + case reflect.Map: + return &mapEncoder{}, nil + case reflect.Ptr: + return &optionalEncoder{}, nil + default: + return nil, fmt.Errorf("unsupported type: %v", typ) + } +} + +func createEncoderOfSimpleType(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) { + typeName := typ.String() + kind := typ.Kind() + switch kind { + case reflect.String: + if typeName != "string" { + return encoderOfType(cfg, reflect.TypeOf((*string)(nil)).Elem()) + } + return &stringCodec{}, nil + case reflect.Int: + if typeName != "int" { + return encoderOfType(cfg, reflect.TypeOf((*int)(nil)).Elem()) + } + return &intCodec{}, nil + case reflect.Int8: + if typeName != "int8" { + return encoderOfType(cfg, reflect.TypeOf((*int8)(nil)).Elem()) + } + return &int8Codec{}, nil + case reflect.Int16: + if typeName != "int16" { + return encoderOfType(cfg, reflect.TypeOf((*int16)(nil)).Elem()) + } + return &int16Codec{}, nil + case reflect.Int32: + if typeName != "int32" { + return encoderOfType(cfg, reflect.TypeOf((*int32)(nil)).Elem()) + } + return &int32Codec{}, nil + case reflect.Int64: + if typeName != "int64" { + return encoderOfType(cfg, reflect.TypeOf((*int64)(nil)).Elem()) + } + return &int64Codec{}, nil + case reflect.Uint: + if typeName != "uint" { + return encoderOfType(cfg, reflect.TypeOf((*uint)(nil)).Elem()) + } + return &uintCodec{}, nil + case reflect.Uint8: + if typeName != "uint8" { + return encoderOfType(cfg, reflect.TypeOf((*uint8)(nil)).Elem()) + } + return &uint8Codec{}, nil + case reflect.Uint16: + if typeName != "uint16" { + return encoderOfType(cfg, reflect.TypeOf((*uint16)(nil)).Elem()) + } + return &uint16Codec{}, nil + case reflect.Uint32: + if typeName != "uint32" { + return encoderOfType(cfg, reflect.TypeOf((*uint32)(nil)).Elem()) + } + return &uint32Codec{}, nil + case reflect.Uintptr: + if typeName != "uintptr" { + return encoderOfType(cfg, reflect.TypeOf((*uintptr)(nil)).Elem()) + } + return &uintptrCodec{}, nil + case reflect.Uint64: + if typeName != "uint64" { + return encoderOfType(cfg, reflect.TypeOf((*uint64)(nil)).Elem()) + } + return &uint64Codec{}, nil + case reflect.Float32: + if typeName != "float32" { + return encoderOfType(cfg, reflect.TypeOf((*float32)(nil)).Elem()) + } + return &float32Codec{}, nil + case reflect.Float64: + if typeName != "float64" { + return encoderOfType(cfg, reflect.TypeOf((*float64)(nil)).Elem()) + } + return &float64Codec{}, nil + case reflect.Bool: + if typeName != "bool" { + return encoderOfType(cfg, reflect.TypeOf((*bool)(nil)).Elem()) + } + return &boolCodec{}, nil + case reflect.Interface: + if typ.NumMethod() == 0 { + return &emptyInterfaceCodec{}, nil + } + return &nonEmptyInterfaceCodec{}, nil + case reflect.Struct: + return prefix(fmt.Sprintf("[%s]", typeName)).addToEncoder(encoderOfStruct(cfg, typ)) + case reflect.Array: + return prefix("[array]").addToEncoder(encoderOfArray(cfg, typ)) + case reflect.Slice: + return prefix("[slice]").addToEncoder(encoderOfSlice(cfg, typ)) + case reflect.Map: + return prefix("[map]").addToEncoder(encoderOfMap(cfg, typ)) + case reflect.Ptr: + return prefix("[optional]").addToEncoder(encoderOfOptional(cfg, typ)) + default: + return nil, fmt.Errorf("unsupported type: %v", typ) + } +} + +func decoderOfOptional(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error) { + elemType := typ.Elem() + decoder, err := decoderOfType(cfg, elemType) + if err != nil { + return nil, err + } + return &optionalDecoder{elemType, decoder}, nil +} + +func encoderOfOptional(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) { + elemType := typ.Elem() + elemEncoder, err := encoderOfType(cfg, elemType) + if err != nil { + return nil, err + } + encoder := &optionalEncoder{elemEncoder} + if elemType.Kind() == reflect.Map { + encoder = &optionalEncoder{encoder} + } + return encoder, nil +} + +func decoderOfMap(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error) { + decoder, err := decoderOfType(cfg, typ.Elem()) + if err != nil { + return nil, err + } + mapInterface := reflect.New(typ).Interface() + return &mapDecoder{typ, typ.Key(), typ.Elem(), decoder, extractInterface(mapInterface)}, nil +} + +func extractInterface(val interface{}) emptyInterface { + return *((*emptyInterface)(unsafe.Pointer(&val))) +} + +func encoderOfMap(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) { + elemType := typ.Elem() + encoder, err := encoderOfType(cfg, elemType) + if err != nil { + return nil, err + } + mapInterface := reflect.New(typ).Elem().Interface() + if cfg.sortMapKeys { + return &sortKeysMapEncoder{typ, elemType, encoder, *((*emptyInterface)(unsafe.Pointer(&mapInterface)))}, nil + } + return &mapEncoder{typ, elemType, encoder, *((*emptyInterface)(unsafe.Pointer(&mapInterface)))}, nil +} -- cgit v1.2.3-54-g00ecf