Update README.md

Improve stdlib compatibility

.travis.yml

@@ -2,6 +2,7 @@ language: go
 
 go:
   - 1.8.x
+  - 1.x
 
 before_install:
   - go get -t -v ./...

README.md

@@ -8,6 +8,10 @@
 
 A high-performance 100% compatible drop-in replacement of "encoding/json"
 
+```
+Go开发者们请加入我们，滴滴出行平台技术部 taowen@didichuxing.com
+```
+
 # Benchmark
 
 ![benchmark](http://jsoniter.com/benchmarks/go-benchmark.png)
@@ -70,6 +74,9 @@ go get github.com/json-iterator/go
 Contributors
 
 * [thockin](https://github.com/thockin) 
+* [mattn](https://github.com/mattn)
 * [cch123](https://github.com/cch123)
+* [Oleg Shaldybin](https://github.com/olegshaldybin)
+* [Jason Toffaletti](https://github.com/toffaletti)
 
 Report issue or pull request, or email taowen@gmail.com, or [![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/json-iterator/Lobby)

extra/fuzzy_decoder.go

@@ -2,11 +2,13 @@ package extra
 
 import (
 	"encoding/json"
-	"github.com/json-iterator/go"
+	"io"
 	"math"
 	"reflect"
 	"strings"
 	"unsafe"
+
+	"github.com/json-iterator/go"
 )
 
 const maxUint = ^uint(0)
@@ -158,7 +160,7 @@ type tolerateEmptyArrayDecoder struct {
 }
 
 func (decoder *tolerateEmptyArrayDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
-	if iter.WhatIsNext() == jsoniter.Array {
+	if iter.WhatIsNext() == jsoniter.ArrayValue {
 		iter.Skip()
 		newIter := iter.Pool().BorrowIterator([]byte("{}"))
 		defer iter.Pool().ReturnIterator(newIter)
@@ -174,11 +176,11 @@ type fuzzyStringDecoder struct {
 func (decoder *fuzzyStringDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
 	valueType := iter.WhatIsNext()
 	switch valueType {
-	case jsoniter.Number:
+	case jsoniter.NumberValue:
 		var number json.Number
 		iter.ReadVal(&number)
 		*((*string)(ptr)) = string(number)
-	case jsoniter.String:
+	case jsoniter.StringValue:
 		*((*string)(ptr)) = iter.ReadString()
 	default:
 		iter.ReportError("fuzzyStringDecoder", "not number or string")
@@ -193,12 +195,18 @@ func (decoder *fuzzyIntegerDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.It
 	valueType := iter.WhatIsNext()
 	var str string
 	switch valueType {
-	case jsoniter.Number:
+	case jsoniter.NumberValue:
 		var number json.Number
 		iter.ReadVal(&number)
 		str = string(number)
-	case jsoniter.String:
+	case jsoniter.StringValue:
 		str = iter.ReadString()
+	case jsoniter.BoolValue:
+		if iter.ReadBool() {
+			str = "1"
+		} else {
+			str = "0"
+		}
 	default:
 		iter.ReportError("fuzzyIntegerDecoder", "not number or string")
 	}
@@ -206,7 +214,7 @@ func (decoder *fuzzyIntegerDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.It
 	defer iter.Pool().ReturnIterator(newIter)
 	isFloat := strings.IndexByte(str, '.') != -1
 	decoder.fun(isFloat, ptr, newIter)
-	if newIter.Error != nil {
+	if newIter.Error != nil && newIter.Error != io.EOF {
 		iter.Error = newIter.Error
 	}
 }
@@ -218,16 +226,23 @@ func (decoder *fuzzyFloat32Decoder) Decode(ptr unsafe.Pointer, iter *jsoniter.It
 	valueType := iter.WhatIsNext()
 	var str string
 	switch valueType {
-	case jsoniter.Number:
+	case jsoniter.NumberValue:
 		*((*float32)(ptr)) = iter.ReadFloat32()
-	case jsoniter.String:
+	case jsoniter.StringValue:
 		str = iter.ReadString()
 		newIter := iter.Pool().BorrowIterator([]byte(str))
 		defer iter.Pool().ReturnIterator(newIter)
 		*((*float32)(ptr)) = newIter.ReadFloat32()
-		if newIter.Error != nil {
+		if newIter.Error != nil && newIter.Error != io.EOF {
 			iter.Error = newIter.Error
 		}
+	case jsoniter.BoolValue:
+		// support bool to float32
+		if iter.ReadBool() {
+			*((*float32)(ptr)) = 1
+		} else {
+			*((*float32)(ptr)) = 0
+		}
 	default:
 		iter.ReportError("fuzzyFloat32Decoder", "not number or string")
 	}
@@ -240,16 +255,23 @@ func (decoder *fuzzyFloat64Decoder) Decode(ptr unsafe.Pointer, iter *jsoniter.It
 	valueType := iter.WhatIsNext()
 	var str string
 	switch valueType {
-	case jsoniter.Number:
+	case jsoniter.NumberValue:
 		*((*float64)(ptr)) = iter.ReadFloat64()
-	case jsoniter.String:
+	case jsoniter.StringValue:
 		str = iter.ReadString()
 		newIter := iter.Pool().BorrowIterator([]byte(str))
 		defer iter.Pool().ReturnIterator(newIter)
 		*((*float64)(ptr)) = newIter.ReadFloat64()
-		if newIter.Error != nil {
+		if newIter.Error != nil && newIter.Error != io.EOF {
 			iter.Error = newIter.Error
 		}
+	case jsoniter.BoolValue:
+		// support bool to float64
+		if iter.ReadBool() {
+			*((*float64)(ptr)) = 1
+		} else {
+			*((*float64)(ptr)) = 0
+		}
 	default:
 		iter.ReportError("fuzzyFloat32Decoder", "not number or string")
 	}

extra/fuzzy_decoder_test.go

@@ -38,6 +38,12 @@ func Test_any_to_int64(t *testing.T) {
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(int64(10), val)
 
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(int64(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(int64(1), val)
+
 	should.Nil(jsoniter.UnmarshalFromString(`-10`, &val))
 	should.Equal(int64(-10), val)
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
@@ -57,6 +63,13 @@ func Test_any_to_int(t *testing.T) {
 	should.Equal(10, val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(10, val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(0, val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(1, val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 	// large float to int
@@ -74,6 +87,13 @@ func Test_any_to_int16(t *testing.T) {
 	should.Equal(int16(10), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(int16(10), val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(int16(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(int16(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 	// large float to int
@@ -91,6 +111,13 @@ func Test_any_to_int32(t *testing.T) {
 	should.Equal(int32(10), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(int32(10), val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(int32(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(int32(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 	// large float to int
@@ -108,6 +135,13 @@ func Test_any_to_int8(t *testing.T) {
 	should.Equal(int8(10), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(int8(10), val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(int8(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(int8(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 	// large float to int
@@ -125,6 +159,13 @@ func Test_any_to_uint8(t *testing.T) {
 	should.Equal(uint8(10), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(uint8(10), val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(uint8(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(uint8(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 	// large float to int
@@ -144,6 +185,12 @@ func Test_any_to_uint64(t *testing.T) {
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(uint64(10), val)
 
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(uint64(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(uint64(1), val)
+
 	// TODO fix?
 	should.NotNil(jsoniter.UnmarshalFromString(`-10`, &val))
 	should.Equal(uint64(0), val)
@@ -165,6 +212,12 @@ func Test_any_to_uint32(t *testing.T) {
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(uint32(10), val)
 
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(uint32(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(uint32(1), val)
+
 	// TODO fix?
 	should.NotNil(jsoniter.UnmarshalFromString(`-10`, &val))
 	should.Equal(uint32(0), val)
@@ -186,6 +239,12 @@ func Test_any_to_uint16(t *testing.T) {
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(uint16(10), val)
 
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(uint16(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(uint16(1), val)
+
 	// TODO fix?
 	should.NotNil(jsoniter.UnmarshalFromString(`-10`, &val))
 	should.Equal(uint16(0), val)
@@ -205,6 +264,12 @@ func Test_any_to_uint(t *testing.T) {
 	should.Equal(uint(10), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(uint(10), val)
+
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(uint(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(uint(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 	// large float to int
@@ -223,6 +288,13 @@ func Test_any_to_float32(t *testing.T) {
 	should.Equal(float32(10.1), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(float32(10), val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(float32(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(float32(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 }
@@ -240,6 +312,13 @@ func Test_any_to_float64(t *testing.T) {
 	should.Equal(float64(10.1), val)
 	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
 	should.Equal(float64(10), val)
+
+	// bool part
+	should.Nil(jsoniter.UnmarshalFromString(`false`, &val))
+	should.Equal(float64(0), val)
+	should.Nil(jsoniter.UnmarshalFromString(`true`, &val))
+	should.Equal(float64(1), val)
+
 	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
 	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
 }
@@ -257,3 +336,24 @@ func Test_empty_array_as_object(t *testing.T) {
 	should.Nil(jsoniter.UnmarshalFromString(`[]`, &val))
 	should.Equal(struct{}{}, val)
 }
+
+func Test_bad_case(t *testing.T) {
+	var jsonstr = `
+{
+    "extra_type": 181760,
+    "combo_type": 0,
+    "trigger_time_ms": 1498800398000,
+    "_create_time": "2017-06-16 11:21:39",
+    "_msg_type": 41000
+}
+`
+
+	type OrderEventRequestParams struct {
+		ExtraType uint64 `json:"extra_type"`
+	}
+
+	var a OrderEventRequestParams
+	err := jsoniter.UnmarshalFromString(jsonstr, &a)
+	should := require.New(t)
+	should.Nil(err)
+}

feature_adapter.go

@@ -90,7 +90,7 @@ func (adapter *Decoder) Buffered() io.Reader {
 	return bytes.NewReader(remaining)
 }
 
-// UseNumber for number JSON element, use float64 or json.Number (alias of string)
+// UseNumber for number JSON element, use float64 or json.NumberValue (alias of string)
 func (adapter *Decoder) UseNumber() {
 	origCfg := adapter.iter.cfg.configBeforeFrozen
 	origCfg.UseNumber = true

feature_any_array.go

@@ -13,7 +13,7 @@ type arrayLazyAny struct {
 }
 
 func (any *arrayLazyAny) ValueType() ValueType {
-	return Array
+	return ArrayValue
 }
 
 func (any *arrayLazyAny) MustBeValid() Any {
@@ -117,7 +117,7 @@ func (any *arrayLazyAny) Get(path ...interface{}) Any {
 			arr := make([]Any, 0)
 			iter.ReadArrayCB(func(iter *Iterator) bool {
 				found := iter.readAny().Get(path[1:]...)
-				if found.ValueType() != Invalid {
+				if found.ValueType() != InvalidValue {
 					arr = append(arr, found)
 				}
 				return true
@@ -162,7 +162,7 @@ func wrapArray(val interface{}) *arrayAny {
 }
 
 func (any *arrayAny) ValueType() ValueType {
-	return Array
+	return ArrayValue
 }
 
 func (any *arrayAny) MustBeValid() Any {
@@ -253,7 +253,7 @@ func (any *arrayAny) Get(path ...interface{}) Any {
 			mappedAll := make([]Any, 0)
 			for i := 0; i < any.val.Len(); i++ {
 				mapped := Wrap(any.val.Index(i).Interface()).Get(path[1:]...)
-				if mapped.ValueType() != Invalid {
+				if mapped.ValueType() != InvalidValue {
 					mappedAll = append(mappedAll, mapped)
 				}
 			}

feature_any_bool.go

@@ -61,7 +61,7 @@ func (any *trueAny) GetInterface() interface{} {
 }
 
 func (any *trueAny) ValueType() ValueType {
-	return Bool
+	return BoolValue
 }
 
 func (any *trueAny) MustBeValid() Any {
@@ -129,7 +129,7 @@ func (any *falseAny) GetInterface() interface{} {
 }
 
 func (any *falseAny) ValueType() ValueType {
-	return Bool
+	return BoolValue
 }
 
 func (any *falseAny) MustBeValid() Any {

feature_any_float.go

@@ -14,7 +14,7 @@ func (any *floatAny) Parse() *Iterator {
 }
 
 func (any *floatAny) ValueType() ValueType {
-	return Number
+	return NumberValue
 }
 
 func (any *floatAny) MustBeValid() Any {

feature_any_int32.go

@@ -14,7 +14,7 @@ func (any *int32Any) LastError() error {
 }
 
 func (any *int32Any) ValueType() ValueType {
-	return Number
+	return NumberValue
 }
 
 func (any *int32Any) MustBeValid() Any {

feature_any_int64.go

@@ -14,7 +14,7 @@ func (any *int64Any) LastError() error {
 }
 
 func (any *int64Any) ValueType() ValueType {
-	return Number
+	return NumberValue
 }
 
 func (any *int64Any) MustBeValid() Any {

feature_any_invalid.go

@@ -16,7 +16,7 @@ func (any *invalidAny) LastError() error {
 }
 
 func (any *invalidAny) ValueType() ValueType {
-	return Invalid
+	return InvalidValue
 }
 
 func (any *invalidAny) MustBeValid() Any {

feature_any_nil.go

@@ -9,7 +9,7 @@ func (any *nilAny) LastError() error {
 }
 
 func (any *nilAny) ValueType() ValueType {
-	return Nil
+	return NilValue
 }
 
 func (any *nilAny) MustBeValid() Any {

feature_any_number.go

@@ -10,7 +10,7 @@ type numberLazyAny struct {
 }
 
 func (any *numberLazyAny) ValueType() ValueType {
-	return Number
+	return NumberValue
 }
 
 func (any *numberLazyAny) MustBeValid() Any {

feature_any_object.go

@@ -13,7 +13,7 @@ type objectLazyAny struct {
 }
 
 func (any *objectLazyAny) ValueType() ValueType {
-	return Object
+	return ObjectValue
 }
 
 func (any *objectLazyAny) MustBeValid() Any {
@@ -91,7 +91,7 @@ func (any *objectLazyAny) Get(path ...interface{}) Any {
 			defer any.cfg.ReturnIterator(iter)
 			iter.ReadMapCB(func(iter *Iterator, field string) bool {
 				mapped := locatePath(iter, path[1:])
-				if mapped.ValueType() != Invalid {
+				if mapped.ValueType() != InvalidValue {
 					mappedAll[field] = mapped
 				}
 				return true
@@ -149,7 +149,7 @@ func wrapStruct(val interface{}) *objectAny {
 }
 
 func (any *objectAny) ValueType() ValueType {
-	return Object
+	return ObjectValue
 }
 
 func (any *objectAny) MustBeValid() Any {
@@ -224,7 +224,7 @@ func (any *objectAny) Get(path ...interface{}) Any {
 				field := any.val.Field(i)
 				if field.CanInterface() {
 					mapped := Wrap(field.Interface()).Get(path[1:]...)
-					if mapped.ValueType() != Invalid {
+					if mapped.ValueType() != InvalidValue {
 						mappedAll[any.val.Type().Field(i).Name] = mapped
 					}
 				}
@@ -268,7 +268,7 @@ func wrapMap(val interface{}) *mapAny {
 }
 
 func (any *mapAny) ValueType() ValueType {
-	return Object
+	return ObjectValue
 }
 
 func (any *mapAny) MustBeValid() Any {
@@ -337,7 +337,7 @@ func (any *mapAny) Get(path ...interface{}) Any {
 				keyAsStr := key.String()
 				element := Wrap(any.val.MapIndex(key).Interface())
 				mapped := element.Get(path[1:]...)
-				if mapped.ValueType() != Invalid {
+				if mapped.ValueType() != InvalidValue {
 					mappedAll[keyAsStr] = mapped
 				}
 			}

feature_any_string.go

@@ -22,7 +22,7 @@ func (any *stringAny) Parse() *Iterator {
 }
 
 func (any *stringAny) ValueType() ValueType {
-	return String
+	return StringValue
 }
 
 func (any *stringAny) MustBeValid() Any {

feature_any_uint32.go

@@ -14,7 +14,7 @@ func (any *uint32Any) LastError() error {
 }
 
 func (any *uint32Any) ValueType() ValueType {
-	return Number
+	return NumberValue
 }
 
 func (any *uint32Any) MustBeValid() Any {

feature_any_uint64.go

@@ -14,7 +14,7 @@ func (any *uint64Any) LastError() error {
 }
 
 func (any *uint64Any) ValueType() ValueType {
-	return Number
+	return NumberValue
 }
 
 func (any *uint64Any) MustBeValid() Any {

feature_config.go

@@ -17,6 +17,8 @@ type Config struct {
 	EscapeHTML              bool
 	SortMapKeys             bool
 	UseNumber               bool
+	TagKey                  string
+	ValidateJsonRawMessage  bool
 }
 
 type frozenConfig struct {
@@ -54,6 +56,7 @@ var ConfigDefault = Config{
 var ConfigCompatibleWithStandardLibrary = Config{
 	EscapeHTML:             true,
 	SortMapKeys:            true,
+	ValidateJsonRawMessage: true,
 }.Froze()
 
 // ConfigFastest marshals float with only 6 digits precision
@@ -82,19 +85,47 @@ func (cfg Config) Froze() API {
 	if cfg.UseNumber {
 		frozenConfig.useNumber()
 	}
+	if cfg.ValidateJsonRawMessage {
+		frozenConfig.validateJsonRawMessage()
+	}
 	frozenConfig.configBeforeFrozen = cfg
 	return frozenConfig
 }
 
+func (cfg *frozenConfig) validateJsonRawMessage() {
+	encoder := &funcEncoder{func(ptr unsafe.Pointer, stream *Stream) {
+		rawMessage := *(*json.RawMessage)(ptr)
+		iter := cfg.BorrowIterator([]byte(rawMessage))
+		iter.Read()
+		if iter.Error != nil {
+			stream.WriteRaw("null")
+		} else {
+			cfg.ReturnIterator(iter)
+			stream.WriteRaw(string(rawMessage))
+		}
+	}, func(ptr unsafe.Pointer) bool {
+		return false
+	}}
+	cfg.addEncoderToCache(reflect.TypeOf((*json.RawMessage)(nil)).Elem(), encoder)
+	cfg.addEncoderToCache(reflect.TypeOf((*RawMessage)(nil)).Elem(), encoder)
+}
+
 func (cfg *frozenConfig) useNumber() {
 	cfg.addDecoderToCache(reflect.TypeOf((*interface{})(nil)).Elem(), &funcDecoder{func(ptr unsafe.Pointer, iter *Iterator) {
-		if iter.WhatIsNext() == Number {
+		if iter.WhatIsNext() == NumberValue {
 			*((*interface{})(ptr)) = json.Number(iter.readNumberAsString())
 		} else {
 			*((*interface{})(ptr)) = iter.Read()
 		}
 	}})
 }
+func (cfg *frozenConfig) getTagKey() string {
+	tagKey := cfg.configBeforeFrozen.TagKey
+	if tagKey == "" {
+		return "json"
+	}
+	return tagKey
+}
 
 func (cfg *frozenConfig) registerExtension(extension Extension) {
 	cfg.extensions = append(cfg.extensions, extension)

feature_iter.go

@@ -10,20 +10,20 @@ import (
 type ValueType int
 
 const (
-	// Invalid invalid JSON element
+	// InvalidValue invalid JSON element
-	Invalid ValueType = iota
+	InvalidValue ValueType = iota
-	// String JSON element "string"
+	// StringValue JSON element "string"
-	String
+	StringValue
-	// Number JSON element 100 or 0.10
+	// NumberValue JSON element 100 or 0.10
-	Number
+	NumberValue
-	// Nil JSON element null
+	// NilValue JSON element null
-	Nil
+	NilValue
-	// Bool JSON element true or false
+	// BoolValue JSON element true or false
-	Bool
+	BoolValue
-	// Array JSON element []
+	// ArrayValue JSON element []
-	Array
+	ArrayValue
-	// Object JSON element {}
+	// ObjectValue JSON element {}
-	Object
+	ObjectValue
 )
 
 var hexDigits []byte
@@ -45,25 +45,25 @@ func init() {
 	}
 	valueTypes = make([]ValueType, 256)
 	for i := 0; i < len(valueTypes); i++ {
-		valueTypes[i] = Invalid
+		valueTypes[i] = InvalidValue
 	}
-	valueTypes['"'] = String
+	valueTypes['"'] = StringValue
-	valueTypes['-'] = Number
+	valueTypes['-'] = NumberValue
-	valueTypes['0'] = Number
+	valueTypes['0'] = NumberValue
-	valueTypes['1'] = Number
+	valueTypes['1'] = NumberValue
-	valueTypes['2'] = Number
+	valueTypes['2'] = NumberValue
-	valueTypes['3'] = Number
+	valueTypes['3'] = NumberValue
-	valueTypes['4'] = Number
+	valueTypes['4'] = NumberValue
-	valueTypes['5'] = Number
+	valueTypes['5'] = NumberValue
-	valueTypes['6'] = Number
+	valueTypes['6'] = NumberValue
-	valueTypes['7'] = Number
+	valueTypes['7'] = NumberValue
-	valueTypes['8'] = Number
+	valueTypes['8'] = NumberValue
-	valueTypes['9'] = Number
+	valueTypes['9'] = NumberValue
-	valueTypes['t'] = Bool
+	valueTypes['t'] = BoolValue
-	valueTypes['f'] = Bool
+	valueTypes['f'] = BoolValue
-	valueTypes['n'] = Nil
+	valueTypes['n'] = NilValue
-	valueTypes['['] = Array
+	valueTypes['['] = ArrayValue
-	valueTypes['{'] = Object
+	valueTypes['{'] = ObjectValue
 }
 
 // Iterator is a io.Reader like object, with JSON specific read functions.
@@ -270,29 +270,33 @@ func (iter *Iterator) unreadByte() {
 func (iter *Iterator) Read() interface{} {
 	valueType := iter.WhatIsNext()
 	switch valueType {
-	case String:
+	case StringValue:
 		return iter.ReadString()
-	case Number:
+	case NumberValue:
 		if iter.cfg.configBeforeFrozen.UseNumber {
 			return json.Number(iter.readNumberAsString())
 		}
 		return iter.ReadFloat64()
-	case Nil:
+	case NilValue:
 		iter.skipFourBytes('n', 'u', 'l', 'l')
 		return nil
-	case Bool:
+	case BoolValue:
 		return iter.ReadBool()
-	case Array:
+	case ArrayValue:
 		arr := []interface{}{}
 		iter.ReadArrayCB(func(iter *Iterator) bool {
-			arr = append(arr, iter.Read())
+			var elem interface{}
+			iter.ReadVal(&elem)
+			arr = append(arr, elem)
 			return true
 		})
 		return arr
-	case Object:
+	case ObjectValue:
 		obj := map[string]interface{}{}
 		iter.ReadMapCB(func(Iter *Iterator, field string) bool {
-			obj[field] = iter.Read()
+			var elem interface{}
+			iter.ReadVal(&elem)
+			obj[field] = elem
 			return true
 		})
 		return obj

feature_iter_float.go

@@ -4,6 +4,7 @@ import (
 	"io"
 	"math/big"
 	"strconv"
+	"strings"
 	"unsafe"
 )
 
@@ -129,6 +130,9 @@ non_decimal_loop:
 	if c == '.' {
 		i++
 		decimalPlaces := 0
+		if i == iter.tail {
+			return iter.readFloat32SlowPath()
+		}
 		for ; i < iter.tail; i++ {
 			c = iter.buf[i]
 			ind := floatDigits[c]
@@ -189,12 +193,9 @@ func (iter *Iterator) readFloat32SlowPath() (ret float32) {
 	if iter.Error != nil && iter.Error != io.EOF {
 		return
 	}
-	if len(str) == 0 {
+	errMsg := validateFloat(str)
-		iter.ReportError("readFloat32SlowPath", "empty number")
+	if errMsg != "" {
-		return
+		iter.ReportError("readFloat32SlowPath", errMsg)
-	}
-	if str[0] == '-' {
-		iter.ReportError("readFloat32SlowPath", "-- is not valid")
 		return
 	}
 	val, err := strconv.ParseFloat(str, 32)
@@ -270,6 +271,9 @@ non_decimal_loop:
 	if c == '.' {
 		i++
 		decimalPlaces := 0
+		if i == iter.tail {
+			return iter.readFloat64SlowPath()
+		}
 		for ; i < iter.tail; i++ {
 			c = iter.buf[i]
 			ind := floatDigits[c]
@@ -301,12 +305,9 @@ func (iter *Iterator) readFloat64SlowPath() (ret float64) {
 	if iter.Error != nil && iter.Error != io.EOF {
 		return
 	}
-	if len(str) == 0 {
+	errMsg := validateFloat(str)
-		iter.ReportError("readFloat64SlowPath", "empty number")
+	if errMsg != "" {
-		return
+		iter.ReportError("readFloat64SlowPath", errMsg)
-	}
-	if str[0] == '-' {
-		iter.ReportError("readFloat64SlowPath", "-- is not valid")
 		return
 	}
 	val, err := strconv.ParseFloat(str, 64)
@@ -316,3 +317,25 @@ func (iter *Iterator) readFloat64SlowPath() (ret float64) {
 	}
 	return val
 }
+
+func validateFloat(str string) string {
+	// strconv.ParseFloat is not validating `1.` or `1.e1`
+	if len(str) == 0 {
+		return "empty number"
+	}
+	if str[0] == '-' {
+		return "-- is not valid"
+	}
+	dotPos := strings.IndexByte(str, '.')
+	if dotPos != -1 {
+		if dotPos == len(str)-1 {
+			return "dot can not be last character"
+		}
+		switch str[dotPos+1] {
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+		default:
+			return "missing digit after dot"
+		}
+	}
+	return ""
+}

feature_iter_skip.go

@@ -14,7 +14,7 @@ func (iter *Iterator) ReadNil() (ret bool) {
 	return false
 }
 
-// ReadBool reads a json object as Bool
+// ReadBool reads a json object as BoolValue
 func (iter *Iterator) ReadBool() (ret bool) {
 	c := iter.nextToken()
 	if c == 't' {

feature_iter_skip_strict.go

@@ -21,12 +21,24 @@ func (iter *Iterator) trySkipNumber() bool {
 			if dotFound {
 				iter.ReportError("validateNumber", `more than one dot found in number`)
 				return true // already failed
-			} else {
-				dotFound = true
 			}
+			if i+1 == iter.tail {
+				return false
+			}
+			c = iter.buf[i+1]
+			switch c {
+			case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+			default:
+				iter.ReportError("validateNumber", `missing digit after dot`)
+				return true // already failed
+			}
+			dotFound = true
 		default:
 			switch c {
 			case ',', ']', '}', ' ', '\t', '\n', '\r':
+				if iter.head == i {
+					return false // if - without following digits
+				}
 				iter.head = i
 				return true // must be valid
 			}
@@ -52,7 +64,7 @@ func (iter *Iterator) trySkipString() bool {
 		} else if c == '\\' {
 			return false
 		} else if c < ' ' {
-			iter.ReportError("ReadString",
+			iter.ReportError("trySkipString",
 				fmt.Sprintf(`invalid control character found: %d`, c))
 			return true // already failed
 		}

feature_iter_string.go

@@ -42,34 +42,48 @@ func (iter *Iterator) readStringSlowPath() (ret string) {
 		}
 		if c == '\\' {
 			c = iter.readByte()
+			str = iter.readEscapedChar(c, str)
+		} else {
+			str = append(str, c)
+		}
+	}
+	iter.ReportError("readStringSlowPath", "unexpected end of input")
+	return
+}
+
+func (iter *Iterator) readEscapedChar(c byte, str []byte) []byte {
 	switch c {
-			case 'u', 'U':
+	case 'u':
 		r := iter.readU4()
 		if utf16.IsSurrogate(r) {
 			c = iter.readByte()
 			if iter.Error != nil {
-						return
+				return nil
 			}
 			if c != '\\' {
-						iter.ReportError("ReadString",
+				iter.unreadByte()
-							`expects \u after utf16 surrogate, but \ not found`)
+				str = appendRune(str, r)
-						return
+				return str
 			}
 			c = iter.readByte()
 			if iter.Error != nil {
-						return
+				return nil
 			}
-					if c != 'u' && c != 'U' {
+			if c != 'u' {
-						iter.ReportError("ReadString",
+				str = appendRune(str, r)
-							`expects \u after utf16 surrogate, but \u not found`)
+				return iter.readEscapedChar(c, str)
-						return
 			}
 			r2 := iter.readU4()
 			if iter.Error != nil {
-						return
+				return nil
 			}
 			combined := utf16.DecodeRune(r, r2)
+			if combined == '\uFFFD' {
+				str = appendRune(str, r)
+				str = appendRune(str, r2)
+			} else {
 				str = appendRune(str, combined)
+			}
 		} else {
 			str = appendRune(str, r)
 		}
@@ -90,16 +104,11 @@ func (iter *Iterator) readStringSlowPath() (ret string) {
 	case 't':
 		str = append(str, '\t')
 	default:
-				iter.ReportError("ReadString",
+		iter.ReportError("readEscapedChar",
 			`invalid escape char after \`)
-				return
+		return nil
 	}
-		} else {
+	return str
-			str = append(str, c)
-		}
-	}
-	iter.ReportError("ReadString", "unexpected end of input")
-	return
 }
 
 // ReadStringAsSlice read string from iterator without copying into string form.
@@ -130,7 +139,7 @@ func (iter *Iterator) ReadStringAsSlice() (ret []byte) {
 		}
 		return copied
 	}
-	iter.ReportError("ReadString", `expects " or n`)
+	iter.ReportError("ReadStringAsSlice", `expects " or n`)
 	return
 }
 

feature_json_number.go

@@ -0,0 +1,15 @@
+package jsoniter
+
+import "encoding/json"
+
+type Number string
+
+func CastJsonNumber(val interface{}) (string, bool) {
+	switch typedVal := val.(type) {
+	case json.Number:
+		return string(typedVal), true
+	case Number:
+		return string(typedVal), true
+	}
+	return "", false
+}

feature_reflect.go

@@ -51,6 +51,7 @@ func WriteToStream(val interface{}, stream *Stream, encoder ValEncoder) {
 }
 
 var jsonNumberType reflect.Type
+var jsoniterNumberType reflect.Type
 var jsonRawMessageType reflect.Type
 var jsoniterRawMessageType reflect.Type
 var anyType reflect.Type
@@ -61,6 +62,7 @@ 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()
@@ -152,11 +154,11 @@ func (encoder *placeholderEncoder) IsEmpty(ptr unsafe.Pointer) bool {
 }
 
 func (encoder *placeholderEncoder) getRealEncoder() ValEncoder {
-	for i := 0; i < 30; i++ {
+	for i := 0; i < 500; i++ {
 		realDecoder := encoder.cfg.getEncoderFromCache(encoder.cacheKey)
 		_, isPlaceholder := realDecoder.(*placeholderEncoder)
 		if isPlaceholder {
-			time.Sleep(time.Second)
+			time.Sleep(10 * time.Millisecond)
 		} else {
 			return realDecoder
 		}
@@ -170,11 +172,11 @@ type placeholderDecoder struct {
 }
 
 func (decoder *placeholderDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
-	for i := 0; i < 30; i++ {
+	for i := 0; i < 500; i++ {
 		realDecoder := decoder.cfg.getDecoderFromCache(decoder.cacheKey)
 		_, isPlaceholder := realDecoder.(*placeholderDecoder)
 		if isPlaceholder {
-			time.Sleep(time.Second)
+			time.Sleep(10 * time.Millisecond)
 		} else {
 			realDecoder.Decode(ptr, iter)
 			return
@@ -280,8 +282,8 @@ func createDecoderOfType(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error
 	if typ.AssignableTo(jsonNumberType) {
 		return &jsonNumberCodec{}, nil
 	}
-	if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
+	if typ.AssignableTo(jsoniterNumberType) {
-		return &base64Codec{}, nil
+		return &jsoniterNumberCodec{}, nil
 	}
 	if typ.Implements(unmarshalerType) {
 		templateInterface := reflect.New(typ).Elem().Interface()
@@ -309,6 +311,13 @@ func createDecoderOfType(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error
 		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
 	}
@@ -439,8 +448,8 @@ func createEncoderOfType(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error
 	if typ.AssignableTo(jsonNumberType) {
 		return &jsonNumberCodec{}, nil
 	}
-	if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
+	if typ.AssignableTo(jsoniterNumberType) {
-		return &base64Codec{typ}, nil
+		return &jsoniterNumberCodec{}, nil
 	}
 	if typ.Implements(marshalerType) {
 		checkIsEmpty, err := createCheckIsEmpty(typ)
@@ -457,6 +466,18 @@ func createEncoderOfType(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error
 		}
 		return encoder, nil
 	}
+	if reflect.PtrTo(typ).Implements(marshalerType) {
+		checkIsEmpty, err := createCheckIsEmpty(reflect.PtrTo(typ))
+		if err != nil {
+			return nil, err
+		}
+		templateInterface := reflect.New(typ).Interface()
+		var encoder ValEncoder = &marshalerEncoder{
+			templateInterface: extractInterface(templateInterface),
+			checkIsEmpty:      checkIsEmpty,
+		}
+		return encoder, nil
+	}
 	if typ.Implements(textMarshalerType) {
 		checkIsEmpty, err := createCheckIsEmpty(typ)
 		if err != nil {
@@ -472,6 +493,9 @@ func createEncoderOfType(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error
 		}
 		return encoder, nil
 	}
+	if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
+		return &base64Codec{}, nil
+	}
 	if typ.Implements(anyType) {
 		return &anyCodec{}, nil
 	}

feature_reflect_extension.go

@@ -227,7 +227,7 @@ func describeStruct(cfg *frozenConfig, typ reflect.Type) (*StructDescriptor, err
 	bindings := []*Binding{}
 	for i := 0; i < typ.NumField(); i++ {
 		field := typ.Field(i)
-		tag := field.Tag.Get("json")
+		tag := field.Tag.Get(cfg.getTagKey())
 		tagParts := strings.Split(tag, ",")
 		if tag == "-" {
 			continue
@@ -373,7 +373,7 @@ func (bindings sortableBindings) Swap(i, j int) {
 func processTags(structDescriptor *StructDescriptor, cfg *frozenConfig) {
 	for _, binding := range structDescriptor.Fields {
 		shouldOmitEmpty := false
-		tagParts := strings.Split(binding.Field.Tag.Get("json"), ",")
+		tagParts := strings.Split(binding.Field.Tag.Get(cfg.getTagKey()), ",")
 		for _, tagPart := range tagParts[1:] {
 			if tagPart == "omitempty" {
 				shouldOmitEmpty = true

feature_reflect_native.go

@@ -32,8 +32,10 @@ type intCodec struct {
 }
 
 func (codec *intCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*int)(ptr)) = iter.ReadInt()
 	}
+}
 
 func (codec *intCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteInt(*((*int)(ptr)))
@@ -51,8 +53,10 @@ type uintptrCodec struct {
 }
 
 func (codec *uintptrCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*uintptr)(ptr)) = uintptr(iter.ReadUint64())
 	}
+}
 
 func (codec *uintptrCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteUint64(uint64(*((*uintptr)(ptr))))
@@ -70,8 +74,10 @@ type int8Codec struct {
 }
 
 func (codec *int8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*int8)(ptr)) = iter.ReadInt8()
 	}
+}
 
 func (codec *int8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteInt8(*((*int8)(ptr)))
@@ -89,8 +95,10 @@ type int16Codec struct {
 }
 
 func (codec *int16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*int16)(ptr)) = iter.ReadInt16()
 	}
+}
 
 func (codec *int16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteInt16(*((*int16)(ptr)))
@@ -108,8 +116,10 @@ type int32Codec struct {
 }
 
 func (codec *int32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*int32)(ptr)) = iter.ReadInt32()
 	}
+}
 
 func (codec *int32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteInt32(*((*int32)(ptr)))
@@ -127,8 +137,10 @@ type int64Codec struct {
 }
 
 func (codec *int64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*int64)(ptr)) = iter.ReadInt64()
 	}
+}
 
 func (codec *int64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteInt64(*((*int64)(ptr)))
@@ -146,7 +158,10 @@ type uintCodec struct {
 }
 
 func (codec *uintCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*uint)(ptr)) = iter.ReadUint()
+		return
+	}
 }
 
 func (codec *uintCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
@@ -165,8 +180,10 @@ type uint8Codec struct {
 }
 
 func (codec *uint8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*uint8)(ptr)) = iter.ReadUint8()
 	}
+}
 
 func (codec *uint8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteUint8(*((*uint8)(ptr)))
@@ -184,8 +201,10 @@ type uint16Codec struct {
 }
 
 func (codec *uint16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*uint16)(ptr)) = iter.ReadUint16()
 	}
+}
 
 func (codec *uint16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteUint16(*((*uint16)(ptr)))
@@ -203,8 +222,10 @@ type uint32Codec struct {
 }
 
 func (codec *uint32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*uint32)(ptr)) = iter.ReadUint32()
 	}
+}
 
 func (codec *uint32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteUint32(*((*uint32)(ptr)))
@@ -222,8 +243,10 @@ type uint64Codec struct {
 }
 
 func (codec *uint64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*uint64)(ptr)) = iter.ReadUint64()
 	}
+}
 
 func (codec *uint64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteUint64(*((*uint64)(ptr)))
@@ -241,8 +264,10 @@ type float32Codec struct {
 }
 
 func (codec *float32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*float32)(ptr)) = iter.ReadFloat32()
 	}
+}
 
 func (codec *float32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteFloat32(*((*float32)(ptr)))
@@ -260,8 +285,10 @@ type float64Codec struct {
 }
 
 func (codec *float64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*float64)(ptr)) = iter.ReadFloat64()
 	}
+}
 
 func (codec *float64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteFloat64(*((*float64)(ptr)))
@@ -279,8 +306,10 @@ type boolCodec struct {
 }
 
 func (codec *boolCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
 		*((*bool)(ptr)) = iter.ReadBool()
 	}
+}
 
 func (codec *boolCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteBool(*((*bool)(ptr)))
@@ -298,8 +327,43 @@ type emptyInterfaceCodec struct {
 }
 
 func (codec *emptyInterfaceCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	existing := *((*interface{})(ptr))
+
+	// Checking for both typed and untyped nil pointers.
+	if existing != nil &&
+		reflect.TypeOf(existing).Kind() == reflect.Ptr &&
+		!reflect.ValueOf(existing).IsNil() {
+
+		var ptrToExisting interface{}
+		for {
+			elem := reflect.ValueOf(existing).Elem()
+			if elem.Kind() != reflect.Ptr || elem.IsNil() {
+				break
+			}
+			ptrToExisting = existing
+			existing = elem.Interface()
+		}
+
+		if iter.ReadNil() {
+			if ptrToExisting != nil {
+				nilPtr := reflect.Zero(reflect.TypeOf(ptrToExisting).Elem())
+				reflect.ValueOf(ptrToExisting).Elem().Set(nilPtr)
+			} else {
+				*((*interface{})(ptr)) = nil
+			}
+		} else {
+			iter.ReadVal(existing)
+		}
+
+		return
+	}
+
+	if iter.ReadNil() {
+		*((*interface{})(ptr)) = nil
+	} else {
 		*((*interface{})(ptr)) = iter.Read()
 	}
+}
 
 func (codec *emptyInterfaceCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	stream.WriteVal(*((*interface{})(ptr)))
@@ -310,7 +374,8 @@ 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 {
@@ -327,15 +392,20 @@ func (codec *nonEmptyInterfaceCodec) Decode(ptr unsafe.Pointer, iter *Iterator)
 	e.typ = nonEmptyInterface.itab.typ
 	e.word = nonEmptyInterface.word
 	iter.ReadVal(&i)
+	if e.word == nil {
+		nonEmptyInterface.itab = nil
+	}
 	nonEmptyInterface.word = e.word
 }
 
 func (codec *nonEmptyInterfaceCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
 	nonEmptyInterface := (*nonEmptyInterface)(ptr)
 	var i interface{}
+	if nonEmptyInterface.itab != nil {
 		e := (*emptyInterface)(unsafe.Pointer(&i))
 		e.typ = nonEmptyInterface.itab.typ
 		e.word = nonEmptyInterface.word
+	}
 	stream.WriteVal(i)
 }
 
@@ -386,6 +456,25 @@ func (codec *jsonNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
 	return len(*((*json.Number)(ptr))) == 0
 }
 
+type jsoniterNumberCodec struct {
+}
+
+func (codec *jsoniterNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	*((*Number)(ptr)) = Number([]byte(iter.readNumberAsString()))
+}
+
+func (codec *jsoniterNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteRaw(string(*((*Number)(ptr))))
+}
+
+func (codec *jsoniterNumberCodec) EncodeInterface(val interface{}, stream *Stream) {
+	stream.WriteRaw(string(val.(Number)))
+}
+
+func (codec *jsoniterNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*Number)(ptr))) == 0
+}
+
 type jsonRawMessageCodec struct {
 }
 
@@ -425,7 +514,7 @@ func (codec *jsoniterRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool {
 }
 
 type base64Codec struct {
-	actualType reflect.Type
+	sliceDecoder ValDecoder
 }
 
 func (codec *base64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
@@ -436,6 +525,8 @@ func (codec *base64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
 		ptrSlice.Data = nil
 		return
 	}
+	switch iter.WhatIsNext() {
+	case StringValue:
 		encoding := base64.StdEncoding
 		src := iter.SkipAndReturnBytes()
 		src = src[1 : len(src)-1]
@@ -452,6 +543,11 @@ func (codec *base64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
 			ptrSlice.Cap = dstSlice.Cap
 			ptrSlice.Len = dstSlice.Len
 		}
+	case ArrayValue:
+		codec.sliceDecoder.Decode(ptr, iter)
+	default:
+		iter.ReportError("base64Codec", "invalid input")
+	}
 }
 
 func (codec *base64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
@@ -570,7 +666,12 @@ func (encoder *marshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
 	templateInterface := encoder.templateInterface
 	templateInterface.word = ptr
 	realInterface := (*interface{})(unsafe.Pointer(&templateInterface))
-	marshaler := (*realInterface).(json.Marshaler)
+	marshaler, ok := (*realInterface).(json.Marshaler)
+	if !ok {
+		stream.WriteVal(nil)
+		return
+	}
+
 	bytes, err := marshaler.MarshalJSON()
 	if err != nil {
 		stream.Error = err

feature_reflect_object.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io"
 	"reflect"
+	"strings"
 	"unsafe"
 )
 
@@ -28,7 +29,7 @@ func encoderOfStruct(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) {
 				if old.toName != toName {
 					continue
 				}
-				old.ignored, new.ignored = resolveConflictBinding(old.binding, new.binding)
+				old.ignored, new.ignored = resolveConflictBinding(cfg, old.binding, new.binding)
 			}
 			orderedBindings = append(orderedBindings, new)
 		}
@@ -48,9 +49,9 @@ func encoderOfStruct(cfg *frozenConfig, typ reflect.Type) (ValEncoder, error) {
 	return &structEncoder{structDescriptor.onePtrEmbedded, structDescriptor.onePtrOptimization, finalOrderedFields}, nil
 }
 
-func resolveConflictBinding(old, new *Binding) (ignoreOld, ignoreNew bool) {
+func resolveConflictBinding(cfg *frozenConfig, old, new *Binding) (ignoreOld, ignoreNew bool) {
-	newTagged := new.Field.Tag.Get("json") != ""
+	newTagged := new.Field.Tag.Get(cfg.getTagKey()) != ""
-	oldTagged := old.Field.Tag.Get("json") != ""
+	oldTagged := old.Field.Tag.Get(cfg.getTagKey()) != ""
 	if newTagged {
 		if oldTagged {
 			if len(old.levels) > len(new.levels) {
@@ -90,7 +91,7 @@ func decoderOfStruct(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error) {
 				bindings[fromName] = binding
 				continue
 			}
-			ignoreOld, ignoreNew := resolveConflictBinding(old, binding)
+			ignoreOld, ignoreNew := resolveConflictBinding(cfg, old, binding)
 			if ignoreOld {
 				delete(bindings, fromName)
 			}
@@ -101,7 +102,7 @@ func decoderOfStruct(cfg *frozenConfig, typ reflect.Type) (ValDecoder, error) {
 	}
 	fields := map[string]*structFieldDecoder{}
 	for k, binding := range bindings {
-		fields[k] = binding.Decoder.(*structFieldDecoder)
+		fields[strings.ToLower(k)] = binding.Decoder.(*structFieldDecoder)
 	}
 	return createStructDecoder(typ, fields)
 }

feature_reflect_slice.go

@@ -124,7 +124,8 @@ func growOne(slice *sliceHeader, sliceType reflect.Type, elementType reflect.Typ
 			}
 		}
 	}
-	dst := unsafe.Pointer(reflect.MakeSlice(sliceType, newLen, newCap).Pointer())
+	newVal := reflect.MakeSlice(sliceType, newLen, newCap)
+	dst := unsafe.Pointer(newVal.Pointer())
 	// copy old array into new array
 	originalBytesCount := uintptr(slice.Len) * elementType.Size()
 	srcPtr := (*[1 << 30]byte)(slice.Data)
@@ -132,16 +133,17 @@ func growOne(slice *sliceHeader, sliceType reflect.Type, elementType reflect.Typ
 	for i := uintptr(0); i < originalBytesCount; i++ {
 		dstPtr[i] = srcPtr[i]
 	}
+	slice.Data = dst
 	slice.Len = newLen
 	slice.Cap = newCap
-	slice.Data = dst
 }
 
 func reuseSlice(slice *sliceHeader, sliceType reflect.Type, expectedCap int) {
 	if expectedCap <= slice.Cap {
 		return
 	}
-	dst := unsafe.Pointer(reflect.MakeSlice(sliceType, 0, expectedCap).Pointer())
+	newVal := reflect.MakeSlice(sliceType, 0, expectedCap)
-	slice.Cap = expectedCap
+	dst := unsafe.Pointer(newVal.Pointer())
 	slice.Data = dst
+	slice.Cap = expectedCap
 }

feature_reflect_struct_decoder.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io"
 	"reflect"
+	"strings"
 	"unsafe"
 )
 
@@ -428,7 +429,7 @@ func (decoder *generalStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator)
 	}
 	fieldBytes := iter.readObjectFieldAsBytes()
 	field := *(*string)(unsafe.Pointer(&fieldBytes))
-	fieldDecoder := decoder.fields[field]
+	fieldDecoder := decoder.fields[strings.ToLower(field)]
 	if fieldDecoder == nil {
 		iter.Skip()
 	} else {
@@ -437,7 +438,7 @@ func (decoder *generalStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator)
 	for iter.nextToken() == ',' {
 		fieldBytes = iter.readObjectFieldAsBytes()
 		field = *(*string)(unsafe.Pointer(&fieldBytes))
-		fieldDecoder = decoder.fields[field]
+		fieldDecoder = decoder.fields[strings.ToLower(field)]
 		if fieldDecoder == nil {
 			iter.Skip()
 		} else {
@@ -455,7 +456,7 @@ type skipObjectDecoder struct {
 
 func (decoder *skipObjectDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
 	valueType := iter.WhatIsNext()
-	if valueType != Object && valueType != Nil {
+	if valueType != ObjectValue && valueType != NilValue {
 		iter.ReportError("skipObjectDecoder", "expect object or null")
 		return
 	}

feature_stream_string.go

@@ -289,6 +289,8 @@ func writeStringSlowPathWithHTMLEscaped(stream *Stream, i int, s string, valLen
 			if start < i {
 				stream.WriteRaw(s[start:i])
 			}
+			stream.WriteRaw(`\ufffd`)
+			i++
 			start = i
 			continue
 		}

jsoniter_any_array_test.go

@@ -9,10 +9,10 @@ import (
 func Test_read_empty_array_as_any(t *testing.T) {
 	should := require.New(t)
 	any := Get([]byte("[]"))
-	should.Equal(Array, any.Get().ValueType())
+	should.Equal(ArrayValue, any.Get().ValueType())
-	should.Equal(Invalid, any.Get(0.3).ValueType())
+	should.Equal(InvalidValue, any.Get(0.3).ValueType())
 	should.Equal(0, any.Size())
-	should.Equal(Array, any.ValueType())
+	should.Equal(ArrayValue, any.ValueType())
 	should.Nil(any.LastError())
 	should.Equal(0, any.ToInt())
 	should.Equal(int32(0), any.ToInt32())
@@ -101,7 +101,7 @@ func Test_array_wrapper_any_get_all(t *testing.T) {
 		{5, 6},
 	})
 	should.Equal("[1,3,5]", any.Get('*', 0).ToString())
-	should.Equal(Array, any.ValueType())
+	should.Equal(ArrayValue, any.ValueType())
 	should.True(any.ToBool())
 	should.Equal(1, any.Get(0, 0).ToInt())
 }
@@ -109,14 +109,14 @@ func Test_array_wrapper_any_get_all(t *testing.T) {
 func Test_array_lazy_any_get_invalid(t *testing.T) {
 	should := require.New(t)
 	any := Get([]byte("[]"))
-	should.Equal(Invalid, any.Get(1, 1).ValueType())
+	should.Equal(InvalidValue, any.Get(1, 1).ValueType())
 	should.NotNil(any.Get(1, 1).LastError())
-	should.Equal(Invalid, any.Get("1").ValueType())
+	should.Equal(InvalidValue, any.Get("1").ValueType())
 	should.NotNil(any.Get("1").LastError())
 }
 
 func Test_invalid_array(t *testing.T) {
 	should := require.New(t)
 	any := Get([]byte("["), 0)
-	should.Equal(Invalid, any.ValueType())
+	should.Equal(InvalidValue, any.ValueType())
 }

jsoniter_any_bool_test.go

@@ -53,12 +53,12 @@ func Test_write_bool_to_stream(t *testing.T) {
 	stream := NewStream(ConfigDefault, nil, 32)
 	any.WriteTo(stream)
 	should.Equal("true", string(stream.Buffer()))
-	should.Equal(any.ValueType(), Bool)
+	should.Equal(any.ValueType(), BoolValue)
 
 	any = Get([]byte("false"))
 	stream = NewStream(ConfigDefault, nil, 32)
 	any.WriteTo(stream)
 	should.Equal("false", string(stream.Buffer()))
 
-	should.Equal(any.ValueType(), Bool)
+	should.Equal(any.ValueType(), BoolValue)
 }

jsoniter_any_float_test.go

@@ -96,7 +96,7 @@ func Test_read_float_to_any(t *testing.T) {
 	should.Equal(uint(0), any2.ToUint())
 	should.Equal(uint32(0), any2.ToUint32())
 	should.Equal(uint64(0), any2.ToUint64())
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 
 	should.Equal("1.23E+01", any.ToString())
 }

jsoniter_any_int_test.go

@@ -123,7 +123,7 @@ func Test_read_int64_to_any(t *testing.T) {
 	should.Equal(float64(12345), any.ToFloat64())
 	should.Equal("12345", any.ToString())
 	should.Equal(true, any.ToBool())
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	stream := NewStream(ConfigDefault, nil, 32)
 	any.WriteTo(stream)
 	should.Equal("12345", string(stream.Buffer()))
@@ -141,7 +141,7 @@ func Test_read_int32_to_any(t *testing.T) {
 	should.Equal(float64(12345), any.ToFloat64())
 	should.Equal("12345", any.ToString())
 	should.Equal(true, any.ToBool())
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	stream := NewStream(ConfigDefault, nil, 32)
 	any.WriteTo(stream)
 	should.Equal("12345", string(stream.Buffer()))
@@ -160,7 +160,7 @@ func Test_read_uint32_to_any(t *testing.T) {
 	should.Equal(float64(12345), any.ToFloat64())
 	should.Equal("12345", any.ToString())
 	should.Equal(true, any.ToBool())
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	stream := NewStream(ConfigDefault, nil, 32)
 	any.WriteTo(stream)
 	should.Equal("12345", string(stream.Buffer()))
@@ -179,7 +179,7 @@ func Test_read_uint64_to_any(t *testing.T) {
 	should.Equal(float64(12345), any.ToFloat64())
 	should.Equal("12345", any.ToString())
 	should.Equal(true, any.ToBool())
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	stream := NewStream(ConfigDefault, nil, 32)
 	any.WriteTo(stream)
 	should.Equal("12345", string(stream.Buffer()))
@@ -193,5 +193,5 @@ func Test_int_lazy_any_get(t *testing.T) {
 	any := Get([]byte("1234"))
 	// panic!!
 	//should.Equal(any.LastError(), io.EOF)
-	should.Equal(Invalid, any.Get(1, "2").ValueType())
+	should.Equal(InvalidValue, any.Get(1, "2").ValueType())
 }

jsoniter_any_object_test.go

@@ -20,7 +20,7 @@ func Test_read_object_as_any(t *testing.T) {
 	should.Equal(2, any.Size())
 	should.True(any.ToBool())
 	should.Equal(0, any.ToInt())
-	should.Equal(Object, any.ValueType())
+	should.Equal(ObjectValue, any.ValueType())
 	should.Nil(any.LastError())
 	obj := struct {
 		A string
@@ -44,8 +44,8 @@ func Test_object_lazy_any_get_all(t *testing.T) {
 func Test_object_lazy_any_get_invalid(t *testing.T) {
 	should := require.New(t)
 	any := Get([]byte(`{}`))
-	should.Equal(Invalid, any.Get("a", "stream", "c").ValueType())
+	should.Equal(InvalidValue, any.Get("a", "stream", "c").ValueType())
-	should.Equal(Invalid, any.Get(1).ValueType())
+	should.Equal(InvalidValue, any.Get(1).ValueType())
 }
 
 func Test_wrap_map_and_convert_to_any(t *testing.T) {

jsoniter_array_test.go

@@ -156,7 +156,7 @@ func Test_encode_byte_array(t *testing.T) {
 	should.Equal(`"AQID"`, string(bytes))
 }
 
-func Test_decode_byte_array(t *testing.T) {
+func Test_decode_byte_array_from_base64(t *testing.T) {
 	should := require.New(t)
 	data := []byte{}
 	err := json.Unmarshal([]byte(`"AQID"`), &data)
@@ -167,6 +167,17 @@ func Test_decode_byte_array(t *testing.T) {
 	should.Equal([]byte{1, 2, 3}, data)
 }
 
+func Test_decode_byte_array_from_array(t *testing.T) {
+	should := require.New(t)
+	data := []byte{}
+	err := json.Unmarshal([]byte(`[1,2,3]`), &data)
+	should.Nil(err)
+	should.Equal([]byte{1, 2, 3}, data)
+	err = Unmarshal([]byte(`[1,2,3]`), &data)
+	should.Nil(err)
+	should.Equal([]byte{1, 2, 3}, data)
+}
+
 func Test_decode_slice(t *testing.T) {
 	should := require.New(t)
 	slice := make([]string, 0, 5)

jsoniter_bool_test.go

@@ -82,3 +82,32 @@ func Test_decode_string_bool(t *testing.T) {
 	err = Unmarshal([]byte(`{"Field":true}`), &obj)
 	should.NotNil(err)
 }
+
+func Test_bool_can_be_null(t *testing.T) {
+	type TestData struct {
+		Field bool `json:"field"`
+	}
+	should := require.New(t)
+
+	obj := TestData{}
+	data1 := []byte(`{"field": true}`)
+	err := Unmarshal(data1, &obj)
+	should.NoError(err)
+	should.Equal(true, obj.Field)
+
+	data2 := []byte(`{"field": null}`)
+	err = Unmarshal(data2, &obj)
+	should.NoError(err)
+	// Same behavior as stdlib, not touching the existing value.
+	should.Equal(true, obj.Field)
+
+	// Checking stdlib behavior as well
+	obj2 := TestData{}
+	err = json.Unmarshal(data1, &obj2)
+	should.NoError(err)
+	should.Equal(true, obj2.Field)
+
+	err = json.Unmarshal(data2, &obj2)
+	should.NoError(err)
+	should.Equal(true, obj2.Field)
+}

jsoniter_customize_test.go

@@ -285,3 +285,56 @@ func Test_marshal_json_with_time(t *testing.T) {
 	should.Nil(Unmarshal([]byte(`{"TF1":{"F1":"fake","F2":"fake"}}`), &obj))
 	should.NotNil(obj.TF1.F2)
 }
+
+func Test_customize_tag_key(t *testing.T) {
+
+	type TestObject struct {
+		Field string `orm:"field"`
+	}
+
+	should := require.New(t)
+	json := Config{TagKey: "orm"}.Froze()
+	str, err := json.MarshalToString(TestObject{"hello"})
+	should.Nil(err)
+	should.Equal(`{"field":"hello"}`, str)
+}
+
+func Test_recursive_empty_interface_customization(t *testing.T) {
+	t.Skip()
+	var obj interface{}
+	RegisterTypeDecoderFunc("interface {}", func(ptr unsafe.Pointer, iter *Iterator) {
+		switch iter.WhatIsNext() {
+		case NumberValue:
+			*(*interface{})(ptr) = iter.ReadInt64()
+		default:
+			*(*interface{})(ptr) = iter.Read()
+		}
+	})
+	should := require.New(t)
+	Unmarshal([]byte("[100]"), &obj)
+	should.Equal([]interface{}{int64(100)}, obj)
+}
+
+type GeoLocation struct {
+	Id string `json:"id,omitempty" db:"id"`
+}
+
+func (p *GeoLocation) MarshalJSON() ([]byte, error) {
+	return []byte(`{}`), nil
+}
+
+func (p *GeoLocation) UnmarshalJSON(input []byte) error {
+	p.Id = "hello"
+	return nil
+}
+
+func Test_marshal_and_unmarshal_on_non_pointer(t *testing.T) {
+	should := require.New(t)
+	locations := []GeoLocation{{"000"}}
+	bytes, err := Marshal(locations)
+	should.Nil(err)
+	should.Equal("[{}]", string(bytes))
+	err = Unmarshal([]byte("[1]"), &locations)
+	should.Nil(err)
+	should.Equal("hello", locations[0].Id)
+}

jsoniter_enum_marshaler_test.go

@@ -0,0 +1,50 @@
+package jsoniter
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+type MyEnum int64
+
+const (
+	MyEnumA MyEnum = iota
+	MyEnumB
+)
+
+func (m *MyEnum) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"foo-%d"`, int(*m))), nil
+}
+
+func (m *MyEnum) UnmarshalJSON(jb []byte) error {
+	switch string(jb) {
+	case `"foo-1"`:
+		*m = MyEnumB
+	default:
+		*m = MyEnumA
+	}
+	return nil
+}
+
+func Test_custom_marshaler_on_enum(t *testing.T) {
+	type Wrapper struct {
+		Payload interface{}
+	}
+	type Wrapper2 struct {
+		Payload MyEnum
+	}
+	should := require.New(t)
+
+	w := Wrapper{Payload: MyEnumB}
+
+	jb, err := Marshal(w)
+	should.NoError(err)
+	should.Equal(`{"Payload":"foo-1"}`, string(jb))
+
+	var w2 Wrapper2
+	err = Unmarshal(jb, &w2)
+	should.NoError(err)
+	should.Equal(MyEnumB, w2.Payload)
+}

jsoniter_int_test.go

@@ -20,7 +20,45 @@ func Test_read_uint64_invalid(t *testing.T) {
 	should.NotNil(iter.Error)
 }
 
-func Test_read_int8(t *testing.T) {
+func Test_read_int_from_null(t *testing.T) {
+
+	type TestObject struct {
+		F1  int8
+		F2  int16
+		F3  int32
+		F4  int64
+		F5  int
+		F6  uint8
+		F7  uint16
+		F8  uint32
+		F9  uint64
+		F10 uint
+		F11 float32
+		F12 float64
+		F13 uintptr
+	}
+
+	should := require.New(t)
+	obj := TestObject{}
+	err := Unmarshal([]byte(`{
+	"f1":null,
+	"f2":null,
+	"f3":null,
+	"f4":null,
+	"f5":null,
+	"f6":null,
+	"f7":null,
+	"f8":null,
+	"f9":null,
+	"f10":null,
+	"f11":null,
+	"f12":null,
+	"f13":null
+	}`), &obj)
+	should.Nil(err)
+}
+
+func _int8(t *testing.T) {
 	inputs := []string{`127`, `-128`}
 	for _, input := range inputs {
 		t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
@@ -457,6 +495,17 @@ func Test_json_number(t *testing.T) {
 	should.Equal(`[1]`, str)
 }
 
+func Test_jsoniter_number(t *testing.T) {
+	should := require.New(t)
+	var arr []Number
+	err := Unmarshal([]byte(`[1]`), &arr)
+	should.Nil(err)
+	should.Equal(Number("1"), arr[0])
+	str, isNumber := CastJsonNumber(arr[0])
+	should.True(isNumber)
+	should.Equal("1", str)
+}
+
 func Benchmark_jsoniter_encode_int(b *testing.B) {
 	stream := NewStream(ConfigDefault, ioutil.Discard, 64)
 	for n := 0; n < b.N; n++ {

jsoniter_interface_test.go

@@ -2,9 +2,11 @@ package jsoniter
 
 import (
 	"encoding/json"
-	"github.com/stretchr/testify/require"
+	"fmt"
 	"testing"
 	"unsafe"
+
+	"github.com/stretchr/testify/require"
 )
 
 func Test_write_array_of_interface(t *testing.T) {
@@ -297,3 +299,262 @@ func Test_array_with_nothing(t *testing.T) {
 	should.Nil(err)
 	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))
+}
+
+func Test_nil_out_null_interface(t *testing.T) {
+	type TestData struct {
+		Field interface{} `json:"field"`
+	}
+	should := require.New(t)
+
+	var boolVar bool
+	obj := TestData{
+		Field: &boolVar,
+	}
+
+	data1 := []byte(`{"field": true}`)
+
+	err := Unmarshal(data1, &obj)
+	should.NoError(err)
+	should.Equal(true, *(obj.Field.(*bool)))
+
+	data2 := []byte(`{"field": null}`)
+
+	err = Unmarshal(data2, &obj)
+	should.NoError(err)
+	should.Equal(nil, obj.Field)
+
+	// Checking stdlib behavior matches.
+	obj2 := TestData{
+		Field: &boolVar,
+	}
+
+	err = json.Unmarshal(data1, &obj2)
+	should.NoError(err)
+	should.Equal(true, *(obj2.Field.(*bool)))
+
+	err = json.Unmarshal(data2, &obj2)
+	should.NoError(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.NoError(err)
+	should.Equal("{}", string(js))
+
+	str, err := MarshalToString(obj)
+	should.NoError(err)
+	should.Equal(string(js), str)
+}
+
+func Test_omitempty_nil_nonempty_interface(t *testing.T) {
+	type TestData struct {
+		Field MyInterface `json:"field,omitempty"`
+	}
+	should := require.New(t)
+
+	obj := TestData{
+		Field: nil,
+	}
+
+	js, err := json.Marshal(obj)
+	should.NoError(err)
+	should.Equal("{}", string(js))
+
+	str, err := MarshalToString(obj)
+	should.NoError(err)
+	should.Equal(string(js), str)
+
+	obj.Field = MyString("hello")
+	err = UnmarshalFromString(`{"field":null}`, &obj)
+	should.NoError(err)
+	should.Equal(nil, obj.Field)
+}
+
+func Test_marshal_nil_marshaler_interface(t *testing.T) {
+	type TestData struct {
+		Field json.Marshaler `json:"field"`
+	}
+	should := require.New(t)
+
+	obj := TestData{
+		Field: nil,
+	}
+
+	js, err := json.Marshal(obj)
+	should.NoError(err)
+	should.Equal(`{"field":null}`, string(js))
+
+	str, err := MarshalToString(obj)
+	should.NoError(err)
+	should.Equal(string(js), str)
+}
+
+func Test_marshal_nil_nonempty_interface(t *testing.T) {
+	type TestData struct {
+		Field MyInterface `json:"field"`
+	}
+	should := require.New(t)
+
+	obj := TestData{
+		Field: nil,
+	}
+
+	js, err := json.Marshal(obj)
+	should.NoError(err)
+	should.Equal(`{"field":null}`, string(js))
+
+	str, err := MarshalToString(obj)
+	should.NoError(err)
+	should.Equal(string(js), str)
+
+	obj.Field = MyString("hello")
+	err = Unmarshal(js, &obj)
+	should.NoError(err)
+	should.Equal(nil, obj.Field)
+}
+
+func Test_overwrite_interface_ptr_value_with_nil(t *testing.T) {
+	type Wrapper struct {
+		Payload interface{} `json:"payload,omitempty"`
+	}
+	type Payload struct {
+		Value int `json:"val,omitempty"`
+	}
+
+	should := require.New(t)
+
+	payload := &Payload{}
+	wrapper := &Wrapper{
+		Payload: &payload,
+	}
+
+	err := json.Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal(42, (*(wrapper.Payload.(**Payload))).Value)
+
+	err = json.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal((*Payload)(nil), payload)
+
+	payload = &Payload{}
+	wrapper = &Wrapper{
+		Payload: &payload,
+	}
+
+	err = Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal(42, (*(wrapper.Payload.(**Payload))).Value)
+
+	err = Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal((*Payload)(nil), payload)
+}
+
+func Test_overwrite_interface_value_with_nil(t *testing.T) {
+	type Wrapper struct {
+		Payload interface{} `json:"payload,omitempty"`
+	}
+	type Payload struct {
+		Value int `json:"val,omitempty"`
+	}
+
+	should := require.New(t)
+
+	payload := &Payload{}
+	wrapper := &Wrapper{
+		Payload: payload,
+	}
+
+	err := json.Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(42, (*(wrapper.Payload.(*Payload))).Value)
+
+	err = json.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(nil, wrapper.Payload)
+	should.Equal(42, payload.Value)
+
+	payload = &Payload{}
+	wrapper = &Wrapper{
+		Payload: payload,
+	}
+
+	err = Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(42, (*(wrapper.Payload.(*Payload))).Value)
+
+	err = Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(nil, wrapper.Payload)
+	should.Equal(42, payload.Value)
+}
+
+func Test_unmarshal_into_nil(t *testing.T) {
+	type Payload struct {
+		Value int `json:"val,omitempty"`
+	}
+	type Wrapper struct {
+		Payload interface{} `json:"payload,omitempty"`
+	}
+
+	should := require.New(t)
+
+	var payload *Payload
+	wrapper := &Wrapper{
+		Payload: payload,
+	}
+
+	err := json.Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Nil(err)
+	should.NotNil(wrapper.Payload)
+	should.Nil(payload)
+
+	err = json.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.Nil(err)
+	should.Nil(wrapper.Payload)
+	should.Nil(payload)
+
+	payload = nil
+	wrapper = &Wrapper{
+		Payload: payload,
+	}
+
+	err = Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Nil(err)
+	should.NotNil(wrapper.Payload)
+	should.Nil(payload)
+
+	err = Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.Nil(err)
+	should.Nil(wrapper.Payload)
+	should.Nil(payload)
+}

jsoniter_invalid_test.go

@@ -1,6 +1,7 @@
 package jsoniter
 
 import (
+	"bytes"
 	"encoding/json"
 	"github.com/stretchr/testify/require"
 	"io"
@@ -25,7 +26,7 @@ func Test_missing_array_end(t *testing.T) {
 func Test_invalid_any(t *testing.T) {
 	should := require.New(t)
 	any := Get([]byte("[]"))
-	should.Equal(Invalid, any.Get(0.3).ValueType())
+	should.Equal(InvalidValue, any.Get(0.3).ValueType())
 	// is nil correct ?
 	should.Equal(nil, any.Get(0.3).GetInterface())
 
@@ -41,7 +42,7 @@ func Test_invalid_any(t *testing.T) {
 	should.Equal(float64(0), any.ToFloat64())
 	should.Equal("", any.ToString())
 
-	should.Equal(Invalid, any.Get(0.1).Get(1).ValueType())
+	should.Equal(InvalidValue, any.Get(0.1).Get(1).ValueType())
 }
 
 func Test_invalid_struct_input(t *testing.T) {
@@ -68,46 +69,64 @@ func Test_invalid_array_input(t *testing.T) {
 	should.NotNil(Unmarshal(input, &obj))
 }
 
-func Test_double_negative(t *testing.T) {
+func Test_invalid_float(t *testing.T) {
+	inputs := []string{
+		`1.e1`, // dot without following digit
+		`1.`,   // dot can not be the last char
+		``,     // empty number
+		`01`,   // extra leading zero
+		`-`,    // negative without digit
+		`--`,   // double negative
+		`--2`,  // double negative
+	}
+	for _, input := range inputs {
+		t.Run(input, func(t *testing.T) {
 			should := require.New(t)
-	var v interface{}
+			iter := ParseString(ConfigDefault, input+",")
-	should.NotNil(json.Unmarshal([]byte(`--2`), &v))
-	var vFloat64 float64
-	should.NotNil(UnmarshalFromString(`--2`, &vFloat64))
-	var vFloat32 float32
-	should.NotNil(UnmarshalFromString(`--2`, &vFloat32))
-	var vInt int
-	should.NotNil(UnmarshalFromString(`--2`, &vInt))
-	iter := ParseString(ConfigDefault, `--2`)
 			iter.Skip()
 			should.NotEqual(io.EOF, iter.Error)
 			should.NotNil(iter.Error)
-}
+			v := float64(0)
-
+			should.NotNil(json.Unmarshal([]byte(input), &v))
-func Test_leading_zero(t *testing.T) {
+			iter = ParseString(ConfigDefault, input+",")
-	should := require.New(t)
-	var v interface{}
-	should.NotNil(json.Unmarshal([]byte(`01`), &v))
-	var vFloat64 float64
-	should.NotNil(UnmarshalFromString(`01`, &vFloat64))
-	var vFloat32 float32
-	should.NotNil(UnmarshalFromString(`01`, &vFloat32))
-	var vInt int
-	should.NotNil(UnmarshalFromString(`01`, &vInt))
-	iter := ParseString(ConfigDefault, `01,`)
-	iter.Skip()
-	should.NotEqual(io.EOF, iter.Error)
-	should.NotNil(iter.Error)
-}
-
-func Test_empty_as_number(t *testing.T) {
-	should := require.New(t)
-	iter := ParseString(ConfigDefault, `,`)
 			iter.ReadFloat64()
 			should.NotEqual(io.EOF, iter.Error)
 			should.NotNil(iter.Error)
-	iter = ParseString(ConfigDefault, `,`)
+			iter = ParseString(ConfigDefault, input+",")
 			iter.ReadFloat32()
 			should.NotEqual(io.EOF, iter.Error)
 			should.NotNil(iter.Error)
+		})
+	}
+}
+
+func Test_chan(t *testing.T) {
+	t.Skip("do not support chan")
+
+	type TestObject struct {
+		MyChan  chan bool
+		MyField int
+	}
+
+	should := require.New(t)
+	obj := TestObject{}
+	str, err := json.Marshal(obj)
+	should.Nil(err)
+	should.Equal(``, str)
+}
+
+func Test_invalid_number(t *testing.T) {
+	type Message struct {
+		Number int `json:"number"`
+	}
+	obj := Message{}
+	decoder := ConfigCompatibleWithStandardLibrary.NewDecoder(bytes.NewBufferString(`{"number":"5"}`))
+	err := decoder.Decode(&obj)
+	invalidStr := err.Error()
+	result, err := ConfigCompatibleWithStandardLibrary.Marshal(invalidStr)
+	should := require.New(t)
+	should.Nil(err)
+	result2, err := json.Marshal(invalidStr)
+	should.Nil(err)
+	should.Equal(string(result2), string(result))
 }

jsoniter_large_file_test.go

@@ -23,17 +23,122 @@ import (
 //	}
 //}
 
+func init() {
+	ioutil.WriteFile("/tmp/large-file.json", []byte(`[{
+  "person": {
+    "id": "d50887ca-a6ce-4e59-b89f-14f0b5d03b03",
+    "name": {
+      "fullName": "Leonid Bugaev",
+      "givenName": "Leonid",
+      "familyName": "Bugaev"
+    },
+    "email": "leonsbox@gmail.com",
+    "gender": "male",
+    "location": "Saint Petersburg, Saint Petersburg, RU",
+    "geo": {
+      "city": "Saint Petersburg",
+      "state": "Saint Petersburg",
+      "country": "Russia",
+      "lat": 59.9342802,
+      "lng": 30.3350986
+    },
+    "bio": "Senior engineer at Granify.com",
+    "site": "http://flickfaver.com",
+    "avatar": "https://d1ts43dypk8bqh.cloudfront.net/v1/avatars/d50887ca-a6ce-4e59-b89f-14f0b5d03b03",
+    "employment": {
+      "name": "www.latera.ru",
+      "title": "Software Engineer",
+      "domain": "gmail.com"
+    },
+    "facebook": {
+      "handle": "leonid.bugaev"
+    },
+    "github": {
+      "handle": "buger",
+      "id": 14009,
+      "avatar": "https://avatars.githubusercontent.com/u/14009?v=3",
+      "company": "Granify",
+      "blog": "http://leonsbox.com",
+      "followers": 95,
+      "following": 10
+    },
+    "twitter": {
+      "handle": "flickfaver",
+      "id": 77004410,
+      "bio": null,
+      "followers": 2,
+      "following": 1,
+      "statuses": 5,
+      "favorites": 0,
+      "location": "",
+      "site": "http://flickfaver.com",
+      "avatar": null
+    },
+    "linkedin": {
+      "handle": "in/leonidbugaev"
+    },
+    "googleplus": {
+      "handle": null
+    },
+    "angellist": {
+      "handle": "leonid-bugaev",
+      "id": 61541,
+      "bio": "Senior engineer at Granify.com",
+      "blog": "http://buger.github.com",
+      "site": "http://buger.github.com",
+      "followers": 41,
+      "avatar": "https://d1qb2nb5cznatu.cloudfront.net/users/61541-medium_jpg?1405474390"
+    },
+    "klout": {
+      "handle": null,
+      "score": null
+    },
+    "foursquare": {
+      "handle": null
+    },
+    "aboutme": {
+      "handle": "leonid.bugaev",
+      "bio": null,
+      "avatar": null
+    },
+    "gravatar": {
+      "handle": "buger",
+      "urls": [
+      ],
+      "avatar": "http://1.gravatar.com/avatar/f7c8edd577d13b8930d5522f28123510",
+      "avatars": [
+        {
+          "url": "http://1.gravatar.com/avatar/f7c8edd577d13b8930d5522f28123510",
+          "type": "thumbnail"
+        }
+      ]
+    },
+    "fuzzy": false
+  },
+  "company": "hello"
+}]`), 0666)
+}
+
+/*
+200000	      8886 ns/op	    4336 B/op	       6 allocs/op
+50000	     34244 ns/op	    6744 B/op	      14 allocs/op
+*/
 func Benchmark_jsoniter_large_file(b *testing.B) {
 	b.ReportAllocs()
 	for n := 0; n < b.N; n++ {
 		file, _ := os.Open("/tmp/large-file.json")
 		iter := Parse(ConfigDefault, file, 4096)
 		count := 0
-		for iter.ReadArray() {
+		iter.ReadArrayCB(func(iter *Iterator) bool {
+			// Skip() is strict by default, use --tags jsoniter-sloppy to skip without validation
 			iter.Skip()
 			count++
-		}
+			return true
+		})
 		file.Close()
+		if iter.Error != nil {
+			b.Error(iter.Error)
+		}
 	}
 }
 
@@ -44,6 +149,9 @@ func Benchmark_json_large_file(b *testing.B) {
 		bytes, _ := ioutil.ReadAll(file)
 		file.Close()
 		result := []struct{}{}
-		json.Unmarshal(bytes, &result)
+		err := json.Unmarshal(bytes, &result)
+		if err != nil {
+			b.Error(err)
+		}
 	}
 }

jsoniter_null_test.go

@@ -3,9 +3,10 @@ package jsoniter
 import (
 	"bytes"
 	"encoding/json"
-	"github.com/stretchr/testify/require"
 	"io"
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func Test_read_null(t *testing.T) {
@@ -135,3 +136,33 @@ func Test_encode_nil_array(t *testing.T) {
 	should.Nil(err)
 	should.Equal("null", string(output))
 }
+
+func Test_decode_nil_num(t *testing.T) {
+	type TestData struct {
+		Field int `json:"field"`
+	}
+	should := require.New(t)
+
+	data1 := []byte(`{"field": 42}`)
+	data2 := []byte(`{"field": null}`)
+
+	// Checking stdlib behavior as well
+	obj2 := TestData{}
+	err := json.Unmarshal(data1, &obj2)
+	should.Equal(nil, err)
+	should.Equal(42, obj2.Field)
+
+	err = json.Unmarshal(data2, &obj2)
+	should.Equal(nil, err)
+	should.Equal(42, obj2.Field)
+
+	obj := TestData{}
+
+	err = Unmarshal(data1, &obj)
+	should.Equal(nil, err)
+	should.Equal(42, obj.Field)
+
+	err = Unmarshal(data2, &obj)
+	should.Equal(nil, err)
+	should.Equal(42, obj.Field)
+}

jsoniter_object_test.go

@@ -95,267 +95,6 @@ func Test_write_object(t *testing.T) {
 	should.Equal("{\n  \"hello\": 1,\n  \"world\": 2\n}", buf.String())
 }
 
-func Test_decode_one_field_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"field1": "hello"}`, &obj))
-	should.Equal("hello", obj.Field1)
-}
-
-func Test_decode_two_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-}
-
-func Test_decode_three_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-}
-
-func Test_decode_four_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-		Field4 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-}
-
-func Test_decode_five_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-		Field4 string
-		Field5 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-}
-
-func Test_decode_six_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-		Field4 string
-		Field5 string
-		Field6 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field6": "x"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-	should.Equal("x", obj.Field6)
-}
-
-func Test_decode_seven_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-		Field4 string
-		Field5 string
-		Field6 string
-		Field7 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field6": "x", "Field7":"y"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-	should.Equal("x", obj.Field6)
-	should.Equal("y", obj.Field7)
-}
-
-func Test_decode_eight_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-		Field4 string
-		Field5 string
-		Field6 string
-		Field7 string
-		Field8 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field8":"1", "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field6": "x", "Field7":"y"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-	should.Equal("x", obj.Field6)
-	should.Equal("y", obj.Field7)
-	should.Equal("1", obj.Field8)
-}
-
-func Test_decode_nine_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string
-		Field2 string
-		Field3 string
-		Field4 string
-		Field5 string
-		Field6 string
-		Field7 string
-		Field8 string
-		Field9 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field8" : "zzzzzzzzzzz", "Field7": "zz", "Field6" : "xx", "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field9":"f"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-	should.Equal("xx", obj.Field6)
-	should.Equal("zz", obj.Field7)
-	should.Equal("zzzzzzzzzzz", obj.Field8)
-	should.Equal("f", obj.Field9)
-}
-
-func Test_decode_ten_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1  string
-		Field2  string
-		Field3  string
-		Field4  string
-		Field5  string
-		Field6  string
-		Field7  string
-		Field8  string
-		Field9  string
-		Field10 string
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field10":"x", "Field9": "x", "Field8":"x", "Field7":"x", "Field6":"x", "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-	should.Equal("x", obj.Field6)
-	should.Equal("x", obj.Field7)
-	should.Equal("x", obj.Field8)
-	should.Equal("x", obj.Field9)
-	should.Equal("x", obj.Field10)
-}
-
-func Test_decode_more_than_ten_fields_struct(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1  string
-		Field2  string
-		Field3  string
-		Field4  string
-		Field5  string
-		Field6  string
-		Field7  string
-		Field8  string
-		Field9  string
-		Field10 string
-		Field11 int
-	}
-	obj := TestObject{}
-	should.Nil(UnmarshalFromString(`{}`, &obj))
-	should.Equal("", obj.Field1)
-	should.Nil(UnmarshalFromString(`{"Field11":1, "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e"}`, &obj))
-	should.Equal("a", obj.Field1)
-	should.Equal("stream", obj.Field2)
-	should.Equal("c", obj.Field3)
-	should.Equal("d", obj.Field4)
-	should.Equal("e", obj.Field5)
-	should.Equal(1, obj.Field11)
-}
-
-func Test_decode_struct_field_with_tag(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 string `json:"field-1"`
-		Field2 string `json:"-"`
-		Field3 int    `json:",string"`
-	}
-	obj := TestObject{Field2: "world"}
-	UnmarshalFromString(`{"field-1": "hello", "field2": "", "Field3": "100"}`, &obj)
-	should.Equal("hello", obj.Field1)
-	should.Equal("world", obj.Field2)
-	should.Equal(100, obj.Field3)
-}
-
-func Test_decode_struct_field_with_tag_string(t *testing.T) {
-	should := require.New(t)
-	type TestObject struct {
-		Field1 int `json:",string"`
-	}
-	obj := TestObject{Field1: 100}
-	should.Nil(UnmarshalFromString(`{"Field1": "100"}`, &obj))
-	should.Equal(100, obj.Field1)
-}
-
 func Test_write_val_zero_field_struct(t *testing.T) {
 	should := require.New(t)
 	type TestObject struct {

jsoniter_raw_message_test.go

@@ -72,3 +72,17 @@ func Test_encode_map_of_jsoniter_raw_message(t *testing.T) {
 	should.Nil(err)
 	should.Equal(`{"hello":[]}`, output)
 }
+
+func Test_marshal_invalid_json_raw_message(t *testing.T) {
+	type A struct {
+		Raw json.RawMessage `json:"raw"`
+	}
+	message := []byte(`{}`)
+
+	a := A{}
+	should := require.New(t)
+	should.Nil(ConfigCompatibleWithStandardLibrary.Unmarshal(message, &a))
+	aout, aouterr := ConfigCompatibleWithStandardLibrary.Marshal(&a)
+	should.Equal(`{"raw":null}`, string(aout))
+	should.Nil(aouterr)
+}

jsoniter_string_test.go

@@ -19,6 +19,8 @@ func Test_read_string(t *testing.T) {
 		`"\"`,
 		`"\\\"`,
 		"\"\n\"",
+		`"\U0001f64f"`,
+		`"\uD83D\u00"`,
 	}
 	for i := 0; i < 32; i++ {
 		// control characters are invalid
@@ -39,6 +41,11 @@ func Test_read_string(t *testing.T) {
 		{`"a"`, "a"},
 		{`null`, ""},
 		{`"Iñtërnâtiônàlizætiøn,💝🐹🌇⛔"`, "Iñtërnâtiônàlizætiøn,💝🐹🌇⛔"},
+		{`"\uD83D"`, string([]byte{239, 191, 189})},
+		{`"\uD83D\\"`, string([]byte{239, 191, 189, '\\'})},
+		{`"\uD83D\ub000"`, string([]byte{239, 191, 189, 235, 128, 128})},
+		{`"\uD83D\ude04"`, "😄"},
+		{`"\uDEADBEEF"`, string([]byte{239, 191, 189, 66, 69, 69, 70})},
 	}
 
 	for _, tc := range goodInputs {
@@ -111,7 +118,9 @@ func Test_read_exotic_string(t *testing.T) {
 		t.Run(fmt.Sprintf("%v:%v", input, output), func(t *testing.T) {
 			should := require.New(t)
 			iter := ParseString(ConfigDefault, input)
-			should.Equal(output, iter.ReadString())
+			var v string
+			should.Nil(json.Unmarshal([]byte(input), &v))
+			should.Equal(v, iter.ReadString())
 		})
 		t.Run(fmt.Sprintf("%v:%v", input, output), func(t *testing.T) {
 			should := require.New(t)

jsoniter_struct_decoder_test.go

@@ -0,0 +1,267 @@
+package jsoniter
+
+import (
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_decode_one_field_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"field1": "hello"}`, &obj))
+	should.Equal("hello", obj.Field1)
+}
+
+func Test_decode_two_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+}
+
+func Test_decode_three_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+}
+
+func Test_decode_four_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+		Field4 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+}
+
+func Test_decode_five_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+		Field4 string
+		Field5 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+}
+
+func Test_decode_six_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+		Field4 string
+		Field5 string
+		Field6 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field6": "x"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+	should.Equal("x", obj.Field6)
+}
+
+func Test_decode_seven_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+		Field4 string
+		Field5 string
+		Field6 string
+		Field7 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field6": "x", "Field7":"y"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+	should.Equal("x", obj.Field6)
+	should.Equal("y", obj.Field7)
+}
+
+func Test_decode_eight_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+		Field4 string
+		Field5 string
+		Field6 string
+		Field7 string
+		Field8 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field8":"1", "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field6": "x", "Field7":"y"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+	should.Equal("x", obj.Field6)
+	should.Equal("y", obj.Field7)
+	should.Equal("1", obj.Field8)
+}
+
+func Test_decode_nine_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		Field2 string
+		Field3 string
+		Field4 string
+		Field5 string
+		Field6 string
+		Field7 string
+		Field8 string
+		Field9 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field8" : "zzzzzzzzzzz", "Field7": "zz", "Field6" : "xx", "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e", "Field9":"f"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+	should.Equal("xx", obj.Field6)
+	should.Equal("zz", obj.Field7)
+	should.Equal("zzzzzzzzzzz", obj.Field8)
+	should.Equal("f", obj.Field9)
+}
+
+func Test_decode_ten_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1  string
+		Field2  string
+		Field3  string
+		Field4  string
+		Field5  string
+		Field6  string
+		Field7  string
+		Field8  string
+		Field9  string
+		Field10 string
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"Field10":"x", "Field9": "x", "Field8":"x", "Field7":"x", "Field6":"x", "Field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+	should.Equal("x", obj.Field6)
+	should.Equal("x", obj.Field7)
+	should.Equal("x", obj.Field8)
+	should.Equal("x", obj.Field9)
+	should.Equal("x", obj.Field10)
+}
+
+func Test_decode_more_than_ten_fields_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1  string
+		Field2  string
+		Field3  string
+		Field4  string
+		Field5  string
+		Field6  string
+		Field7  string
+		Field8  string
+		Field9  string
+		Field10 string
+		Field11 int
+	}
+	obj := TestObject{}
+	should.Nil(UnmarshalFromString(`{}`, &obj))
+	should.Equal("", obj.Field1)
+	should.Nil(UnmarshalFromString(`{"field11":1, "field1": "a", "Field2": "stream", "Field3": "c", "Field4": "d", "Field5": "e"}`, &obj))
+	should.Equal("a", obj.Field1)
+	should.Equal("stream", obj.Field2)
+	should.Equal("c", obj.Field3)
+	should.Equal("d", obj.Field4)
+	should.Equal("e", obj.Field5)
+	should.Equal(1, obj.Field11)
+}
+
+func Test_decode_struct_field_with_tag(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string `json:"field-1"`
+		Field2 string `json:"-"`
+		Field3 int    `json:",string"`
+	}
+	obj := TestObject{Field2: "world"}
+	UnmarshalFromString(`{"field-1": "hello", "field2": "", "Field3": "100"}`, &obj)
+	should.Equal("hello", obj.Field1)
+	should.Equal("world", obj.Field2)
+	should.Equal(100, obj.Field3)
+}
+
+func Test_decode_struct_field_with_tag_string(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 int `json:",string"`
+	}
+	obj := TestObject{Field1: 100}
+	should.Nil(UnmarshalFromString(`{"Field1": "100"}`, &obj))
+	should.Equal(100, obj.Field1)
+}

jsoniter_wrap_test.go

@@ -15,80 +15,80 @@ func Test_wrap_and_valuetype_everything(t *testing.T) {
 	should.Equal(i, any.GetInterface())
 
 	any = Wrap(int8(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	//  get interface is not int8 interface
 	// i = int8(10)
 	// should.Equal(i, any.GetInterface())
 
 	any = Wrap(int16(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	//i = int16(10)
 	//should.Equal(i, any.GetInterface())
 
 	any = Wrap(int32(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	i = int32(10)
 	should.Equal(i, any.GetInterface())
 	any = Wrap(int64(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	i = int64(10)
 	should.Equal(i, any.GetInterface())
 
 	any = Wrap(uint(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	// not equal
 	//i = uint(10)
 	//should.Equal(i, any.GetInterface())
 	any = Wrap(uint8(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	// not equal
 	// i = uint8(10)
 	// should.Equal(i, any.GetInterface())
 	any = Wrap(uint16(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	any = Wrap(uint32(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	i = uint32(10)
 	should.Equal(i, any.GetInterface())
 	any = Wrap(uint64(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	i = uint64(10)
 	should.Equal(i, any.GetInterface())
 
 	any = Wrap(float32(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	// not equal
 	//i = float32(10)
 	//should.Equal(i, any.GetInterface())
 	any = Wrap(float64(10))
-	should.Equal(any.ValueType(), Number)
+	should.Equal(any.ValueType(), NumberValue)
 	should.Equal(any.LastError(), nil)
 	i = float64(10)
 	should.Equal(i, any.GetInterface())
 
 	any = Wrap(true)
-	should.Equal(any.ValueType(), Bool)
+	should.Equal(any.ValueType(), BoolValue)
 	should.Equal(any.LastError(), nil)
 	i = true
 	should.Equal(i, any.GetInterface())
 	any = Wrap(false)
-	should.Equal(any.ValueType(), Bool)
+	should.Equal(any.ValueType(), BoolValue)
 	should.Equal(any.LastError(), nil)
 	i = false
 	should.Equal(i, any.GetInterface())
 
 	any = Wrap(nil)
-	should.Equal(any.ValueType(), Nil)
+	should.Equal(any.ValueType(), NilValue)
 	should.Equal(any.LastError(), nil)
 	i = nil
 	should.Equal(i, any.GetInterface())
@@ -99,13 +99,13 @@ func Test_wrap_and_valuetype_everything(t *testing.T) {
 	should.Equal(any.LastError(), nil)
 
 	any = Wrap(struct{ age int }{age: 1})
-	should.Equal(any.ValueType(), Object)
+	should.Equal(any.ValueType(), ObjectValue)
 	should.Equal(any.LastError(), nil)
 	i = struct{ age int }{age: 1}
 	should.Equal(i, any.GetInterface())
 
 	any = Wrap(map[string]interface{}{"abc": 1})
-	should.Equal(any.ValueType(), Object)
+	should.Equal(any.ValueType(), ObjectValue)
 	should.Equal(any.LastError(), nil)
 	i = map[string]interface{}{"abc": 1}
 	should.Equal(i, any.GetInterface())

output_tests/builtins/int64/json_test.go

@@ -0,0 +1,152 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+	fuzz "github.com/google/gofuzz"
+	jsoniter "github.com/json-iterator/go"
+)
+
+func Test_Roundtrip(t *testing.T) {
+	fz := fuzz.New().MaxDepth(10).NilChance(0.3)
+	for i := 0; i < 100; i++ {
+		var before typeForTest
+		fz.Fuzz(&before)
+
+		jbStd, err := json.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with stdlib: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbStd))) == 0 {
+			t.Fatal("stdlib marshal produced empty result and no error")
+		}
+		jbIter, err := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with jsoniter: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbIter))) == 0 {
+			t.Fatal("jsoniter marshal produced empty result and no error")
+		}
+		if string(jbStd) != string(jbIter) {
+			t.Fatalf("marshal expected:\n    %s\ngot:\n    %s\nobj:\n    %s",
+				indent(jbStd, "    "), indent(jbIter, "    "), dump(before))
+		}
+
+		var afterStd typeForTest
+		err = json.Unmarshal(jbIter, &afterStd)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with stdlib: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		var afterIter typeForTest
+		err = jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(jbIter, &afterIter)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with jsoniter: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		if fingerprint(afterStd) != fingerprint(afterIter) {
+			t.Fatalf("unmarshal expected:\n    %s\ngot:\n    %s\nvia:\n    %s",
+				dump(afterStd), dump(afterIter), indent(jbIter, "    "))
+		}
+	}
+}
+
+const indentStr = ">  "
+
+func fingerprint(obj interface{}) string {
+	c := spew.ConfigState{
+		SortKeys: true,
+		SpewKeys: true,
+	}
+	return c.Sprintf("%v", obj)
+}
+
+func dump(obj interface{}) string {
+	cfg := spew.ConfigState{
+		Indent: indentStr,
+	}
+	return cfg.Sdump(obj)
+}
+
+func indent(src []byte, prefix string) string {
+	var buf bytes.Buffer
+	err := json.Indent(&buf, src, prefix, indentStr)
+	if err != nil {
+		return fmt.Sprintf("!!! %v", err)
+	}
+	return buf.String()
+}
+
+func benchmarkMarshal(t *testing.B, name string, fn func(interface{}) ([]byte, error)) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var obj typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&obj)
+	for i := 0; i < t.N; i++ {
+		jb, err := fn(obj)
+		if err != nil {
+			t.Fatalf("%s failed to marshal:\n input: %s\n  error: %v", name, dump(obj), err)
+		}
+		_ = jb
+	}
+}
+
+func benchmarkUnmarshal(t *testing.B, name string, fn func(data []byte, v interface{}) error) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var before typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&before)
+	jb, err := json.Marshal(before)
+	if err != nil {
+		t.Fatalf("failed to marshal: %v", err)
+	}
+
+	for i := 0; i < t.N; i++ {
+		var after typeForTest
+		err = fn(jb, &after)
+		if err != nil {
+			t.Fatalf("%s failed to unmarshal:\n  input: %q\n  error: %v", name, string(jb), err)
+		}
+	}
+}
+
+func BenchmarkStandardMarshal(t *testing.B) {
+	benchmarkMarshal(t, "stdlib", json.Marshal)
+}
+
+func BenchmarkStandardUnmarshal(t *testing.B) {
+	benchmarkUnmarshal(t, "stdlib", json.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalFastest(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalFastest(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalDefault(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-default", jsoniter.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalDefault(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-default", jsoniter.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalCompatible(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalCompatible(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal)
+}

output_tests/builtins/int64/types.go

@@ -0,0 +1,3 @@
+package test
+
+type typeForTest int64

output_tests/map/int64/string/json_test.go

@@ -0,0 +1,152 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+	fuzz "github.com/google/gofuzz"
+	jsoniter "github.com/json-iterator/go"
+)
+
+func Test_Roundtrip(t *testing.T) {
+	fz := fuzz.New().MaxDepth(10).NilChance(0.3)
+	for i := 0; i < 100; i++ {
+		var before typeForTest
+		fz.Fuzz(&before)
+
+		jbStd, err := json.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with stdlib: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbStd))) == 0 {
+			t.Fatal("stdlib marshal produced empty result and no error")
+		}
+		jbIter, err := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with jsoniter: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbIter))) == 0 {
+			t.Fatal("jsoniter marshal produced empty result and no error")
+		}
+		if string(jbStd) != string(jbIter) {
+			t.Fatalf("marshal expected:\n    %s\ngot:\n    %s\nobj:\n    %s",
+				indent(jbStd, "    "), indent(jbIter, "    "), dump(before))
+		}
+
+		var afterStd typeForTest
+		err = json.Unmarshal(jbIter, &afterStd)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with stdlib: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		var afterIter typeForTest
+		err = jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(jbIter, &afterIter)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with jsoniter: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		if fingerprint(afterStd) != fingerprint(afterIter) {
+			t.Fatalf("unmarshal expected:\n    %s\ngot:\n    %s\nvia:\n    %s",
+				dump(afterStd), dump(afterIter), indent(jbIter, "    "))
+		}
+	}
+}
+
+const indentStr = ">  "
+
+func fingerprint(obj interface{}) string {
+	c := spew.ConfigState{
+		SortKeys: true,
+		SpewKeys: true,
+	}
+	return c.Sprintf("%v", obj)
+}
+
+func dump(obj interface{}) string {
+	cfg := spew.ConfigState{
+		Indent: indentStr,
+	}
+	return cfg.Sdump(obj)
+}
+
+func indent(src []byte, prefix string) string {
+	var buf bytes.Buffer
+	err := json.Indent(&buf, src, prefix, indentStr)
+	if err != nil {
+		return fmt.Sprintf("!!! %v", err)
+	}
+	return buf.String()
+}
+
+func benchmarkMarshal(t *testing.B, name string, fn func(interface{}) ([]byte, error)) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var obj typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&obj)
+	for i := 0; i < t.N; i++ {
+		jb, err := fn(obj)
+		if err != nil {
+			t.Fatalf("%s failed to marshal:\n input: %s\n  error: %v", name, dump(obj), err)
+		}
+		_ = jb
+	}
+}
+
+func benchmarkUnmarshal(t *testing.B, name string, fn func(data []byte, v interface{}) error) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var before typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&before)
+	jb, err := json.Marshal(before)
+	if err != nil {
+		t.Fatalf("failed to marshal: %v", err)
+	}
+
+	for i := 0; i < t.N; i++ {
+		var after typeForTest
+		err = fn(jb, &after)
+		if err != nil {
+			t.Fatalf("%s failed to unmarshal:\n  input: %q\n  error: %v", name, string(jb), err)
+		}
+	}
+}
+
+func BenchmarkStandardMarshal(t *testing.B) {
+	benchmarkMarshal(t, "stdlib", json.Marshal)
+}
+
+func BenchmarkStandardUnmarshal(t *testing.B) {
+	benchmarkUnmarshal(t, "stdlib", json.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalFastest(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalFastest(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalDefault(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-default", jsoniter.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalDefault(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-default", jsoniter.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalCompatible(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalCompatible(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal)
+}

output_tests/map/int64/string/types.go

@@ -0,0 +1,3 @@
+package test
+
+type typeForTest map[int64]string

output_tests/slice/int64/json_test.go

@@ -0,0 +1,152 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+	fuzz "github.com/google/gofuzz"
+	jsoniter "github.com/json-iterator/go"
+)
+
+func Test_Roundtrip(t *testing.T) {
+	fz := fuzz.New().MaxDepth(10).NilChance(0.3)
+	for i := 0; i < 100; i++ {
+		var before typeForTest
+		fz.Fuzz(&before)
+
+		jbStd, err := json.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with stdlib: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbStd))) == 0 {
+			t.Fatal("stdlib marshal produced empty result and no error")
+		}
+		jbIter, err := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with jsoniter: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbIter))) == 0 {
+			t.Fatal("jsoniter marshal produced empty result and no error")
+		}
+		if string(jbStd) != string(jbIter) {
+			t.Fatalf("marshal expected:\n    %s\ngot:\n    %s\nobj:\n    %s",
+				indent(jbStd, "    "), indent(jbIter, "    "), dump(before))
+		}
+
+		var afterStd typeForTest
+		err = json.Unmarshal(jbIter, &afterStd)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with stdlib: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		var afterIter typeForTest
+		err = jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(jbIter, &afterIter)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with jsoniter: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		if fingerprint(afterStd) != fingerprint(afterIter) {
+			t.Fatalf("unmarshal expected:\n    %s\ngot:\n    %s\nvia:\n    %s",
+				dump(afterStd), dump(afterIter), indent(jbIter, "    "))
+		}
+	}
+}
+
+const indentStr = ">  "
+
+func fingerprint(obj interface{}) string {
+	c := spew.ConfigState{
+		SortKeys: true,
+		SpewKeys: true,
+	}
+	return c.Sprintf("%v", obj)
+}
+
+func dump(obj interface{}) string {
+	cfg := spew.ConfigState{
+		Indent: indentStr,
+	}
+	return cfg.Sdump(obj)
+}
+
+func indent(src []byte, prefix string) string {
+	var buf bytes.Buffer
+	err := json.Indent(&buf, src, prefix, indentStr)
+	if err != nil {
+		return fmt.Sprintf("!!! %v", err)
+	}
+	return buf.String()
+}
+
+func benchmarkMarshal(t *testing.B, name string, fn func(interface{}) ([]byte, error)) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var obj typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&obj)
+	for i := 0; i < t.N; i++ {
+		jb, err := fn(obj)
+		if err != nil {
+			t.Fatalf("%s failed to marshal:\n input: %s\n  error: %v", name, dump(obj), err)
+		}
+		_ = jb
+	}
+}
+
+func benchmarkUnmarshal(t *testing.B, name string, fn func(data []byte, v interface{}) error) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var before typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&before)
+	jb, err := json.Marshal(before)
+	if err != nil {
+		t.Fatalf("failed to marshal: %v", err)
+	}
+
+	for i := 0; i < t.N; i++ {
+		var after typeForTest
+		err = fn(jb, &after)
+		if err != nil {
+			t.Fatalf("%s failed to unmarshal:\n  input: %q\n  error: %v", name, string(jb), err)
+		}
+	}
+}
+
+func BenchmarkStandardMarshal(t *testing.B) {
+	benchmarkMarshal(t, "stdlib", json.Marshal)
+}
+
+func BenchmarkStandardUnmarshal(t *testing.B) {
+	benchmarkUnmarshal(t, "stdlib", json.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalFastest(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalFastest(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalDefault(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-default", jsoniter.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalDefault(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-default", jsoniter.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalCompatible(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalCompatible(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal)
+}

output_tests/slice/int64/types.go

@@ -0,0 +1,3 @@
+package test
+
+type typeForTest []int64

output_tests/struct/everything/types.go

@@ -8,9 +8,11 @@ type typeForTest struct {
 	Int8    int8
 	Int16   int16
 	Int32   int32
+	Int64   int64
 	Uint8   uint8
 	Uint16  uint16
 	Uint32  uint32
+	Uint64  uint64
 	Float32 float32
 	Float64 float64
 	String1 string

output_tests/struct/int64/json_test.go

@@ -0,0 +1,152 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+	fuzz "github.com/google/gofuzz"
+	jsoniter "github.com/json-iterator/go"
+)
+
+func Test_Roundtrip(t *testing.T) {
+	fz := fuzz.New().MaxDepth(10).NilChance(0.3)
+	for i := 0; i < 100; i++ {
+		var before typeForTest
+		fz.Fuzz(&before)
+
+		jbStd, err := json.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with stdlib: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbStd))) == 0 {
+			t.Fatal("stdlib marshal produced empty result and no error")
+		}
+		jbIter, err := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(before)
+		if err != nil {
+			t.Fatalf("failed to marshal with jsoniter: %v", err)
+		}
+		if len(strings.TrimSpace(string(jbIter))) == 0 {
+			t.Fatal("jsoniter marshal produced empty result and no error")
+		}
+		if string(jbStd) != string(jbIter) {
+			t.Fatalf("marshal expected:\n    %s\ngot:\n    %s\nobj:\n    %s",
+				indent(jbStd, "    "), indent(jbIter, "    "), dump(before))
+		}
+
+		var afterStd typeForTest
+		err = json.Unmarshal(jbIter, &afterStd)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with stdlib: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		var afterIter typeForTest
+		err = jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(jbIter, &afterIter)
+		if err != nil {
+			t.Fatalf("failed to unmarshal with jsoniter: %v\nvia:\n    %s",
+				err, indent(jbIter, "    "))
+		}
+		if fingerprint(afterStd) != fingerprint(afterIter) {
+			t.Fatalf("unmarshal expected:\n    %s\ngot:\n    %s\nvia:\n    %s",
+				dump(afterStd), dump(afterIter), indent(jbIter, "    "))
+		}
+	}
+}
+
+const indentStr = ">  "
+
+func fingerprint(obj interface{}) string {
+	c := spew.ConfigState{
+		SortKeys: true,
+		SpewKeys: true,
+	}
+	return c.Sprintf("%v", obj)
+}
+
+func dump(obj interface{}) string {
+	cfg := spew.ConfigState{
+		Indent: indentStr,
+	}
+	return cfg.Sdump(obj)
+}
+
+func indent(src []byte, prefix string) string {
+	var buf bytes.Buffer
+	err := json.Indent(&buf, src, prefix, indentStr)
+	if err != nil {
+		return fmt.Sprintf("!!! %v", err)
+	}
+	return buf.String()
+}
+
+func benchmarkMarshal(t *testing.B, name string, fn func(interface{}) ([]byte, error)) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var obj typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&obj)
+	for i := 0; i < t.N; i++ {
+		jb, err := fn(obj)
+		if err != nil {
+			t.Fatalf("%s failed to marshal:\n input: %s\n  error: %v", name, dump(obj), err)
+		}
+		_ = jb
+	}
+}
+
+func benchmarkUnmarshal(t *testing.B, name string, fn func(data []byte, v interface{}) error) {
+	t.ReportAllocs()
+	t.ResetTimer()
+
+	var before typeForTest
+	fz := fuzz.NewWithSeed(0).MaxDepth(10).NilChance(0.3)
+	fz.Fuzz(&before)
+	jb, err := json.Marshal(before)
+	if err != nil {
+		t.Fatalf("failed to marshal: %v", err)
+	}
+
+	for i := 0; i < t.N; i++ {
+		var after typeForTest
+		err = fn(jb, &after)
+		if err != nil {
+			t.Fatalf("%s failed to unmarshal:\n  input: %q\n  error: %v", name, string(jb), err)
+		}
+	}
+}
+
+func BenchmarkStandardMarshal(t *testing.B) {
+	benchmarkMarshal(t, "stdlib", json.Marshal)
+}
+
+func BenchmarkStandardUnmarshal(t *testing.B) {
+	benchmarkUnmarshal(t, "stdlib", json.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalFastest(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalFastest(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-fastest", jsoniter.ConfigFastest.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalDefault(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-default", jsoniter.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalDefault(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-default", jsoniter.Unmarshal)
+}
+
+func BenchmarkJSONIterMarshalCompatible(t *testing.B) {
+	benchmarkMarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Marshal)
+}
+
+func BenchmarkJSONIterUnmarshalCompatible(t *testing.B) {
+	benchmarkUnmarshal(t, "jsoniter-compat", jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal)
+}

output_tests/struct/int64/types.go

@@ -0,0 +1,5 @@
+package test
+
+type typeForTest struct {
+	F int64
+}

skip_tests/number/inputs.go

@@ -13,4 +13,5 @@ var inputs = []string{
 	"1E1",   // valid, e or E
 	"1ee1",  // invalid
 	"100a",  // invalid
+	"10.",   // invalid
 }