Merge pull request #513 from AllenX2018/fix-issue-510

fix issue 510

.codecov.yml

@@ -0,0 +1,3 @@
+ignore:
+    - "output_tests/.*"
+

.gitignore

@@ -0,0 +1,4 @@
+/vendor
+/bug_test.go
+/coverage.txt
+/.idea

.travis.yml

@@ -0,0 +1,14 @@
+language: go
+
+go:
+  - 1.8.x
+  - 1.x
+
+before_install:
+  - go get -t -v ./...
+
+script:
+  - ./test.sh
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

Gopkg.lock

@@ -0,0 +1,21 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/modern-go/concurrent"
+  packages = ["."]
+  revision = "e0a39a4cb4216ea8db28e22a69f4ec25610d513a"
+  version = "1.0.0"
+
+[[projects]]
+  name = "github.com/modern-go/reflect2"
+  packages = ["."]
+  revision = "4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd"
+  version = "1.0.1"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "ea54a775e5a354cb015502d2e7aa4b74230fc77e894f34a838b268c25ec8eeb8"
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

@@ -0,0 +1,26 @@
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#  name = "github.com/x/y"
+#  version = "2.4.0"
+
+ignored = ["github.com/davecgh/go-spew*","github.com/google/gofuzz*","github.com/stretchr/testify*"]
+
+[[constraint]]
+  name = "github.com/modern-go/reflect2"
+  version = "1.0.1"

README.md

@@ -1,60 +1,72 @@
-jsoniter (json-iterator) is fast and flexible JSON parser available in [Java](https://github.com/json-iterator/java) and [Go](https://github.com/json-iterator/go)
+[![Sourcegraph](https://sourcegraph.com/github.com/json-iterator/go/-/badge.svg)](https://sourcegraph.com/github.com/json-iterator/go?badge)
+[![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](https://pkg.go.dev/github.com/json-iterator/go)
+[![Build Status](https://travis-ci.org/json-iterator/go.svg?branch=master)](https://travis-ci.org/json-iterator/go)
+[![codecov](https://codecov.io/gh/json-iterator/go/branch/master/graph/badge.svg)](https://codecov.io/gh/json-iterator/go)
+[![rcard](https://goreportcard.com/badge/github.com/json-iterator/go)](https://goreportcard.com/report/github.com/json-iterator/go)
+[![License](http://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/json-iterator/go/master/LICENSE)
+[![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/json-iterator/Lobby)
 
-# Why jsoniter?
+A high-performance 100% compatible drop-in replacement of "encoding/json"
 
-* Jsoniter is the fastest JSON parser. It could be up to 10x faster than normal parser, data binding included. Shameless self [benchmark](http://jsoniter.com/benchmark.html)
+You can also use thrift like JSON using [thrift-iterator](https://github.com/thrift-iterator/go)
-* Extremely flexible api. You can mix and match three different styles: bind-api, any-api or iterator-api. Checkout your [api choices](http://jsoniter.com/api.html)
-* Unique iterator api can iterate through JSON directly, zero memory allocation! See how [iterator](http://jsoniter.com/api.html#iterator-api) works
 
-# Show off
+# Benchmark
 
-Here is a quick show off, for more complete report you can checkout the full [benchmark](http://jsoniter.com/benchmark.html) with [in-depth optimization](http://jsoniter.com/benchmark.html#optimization-used) to back the numbers up
+![benchmark](http://jsoniter.com/benchmarks/go-benchmark.png)
 
-![go-medium](http://jsoniter.com/benchmarks/go-medium.png)
+Source code: https://github.com/json-iterator/go-benchmark/blob/master/src/github.com/json-iterator/go-benchmark/benchmark_medium_payload_test.go
 
-# Bind-API is the best
+Raw Result (easyjson requires static code generation)
 
-Bind-api should always be the first choice. Given this JSON document `[0,1,2,3]`
+|                 | ns/op       | allocation bytes | allocation times |
+| --------------- | ----------- | ---------------- | ---------------- |
+| std decode      | 35510 ns/op | 1960 B/op        | 99 allocs/op     |
+| easyjson decode | 8499 ns/op  | 160 B/op         | 4 allocs/op      |
+| jsoniter decode | 5623 ns/op  | 160 B/op         | 3 allocs/op      |
+| std encode      | 2213 ns/op  | 712 B/op         | 5 allocs/op      |
+| easyjson encode | 883 ns/op   | 576 B/op         | 3 allocs/op      |
+| jsoniter encode | 837 ns/op   | 384 B/op         | 4 allocs/op      |
 
-Parse with Go bind-api
+Always benchmark with your own workload.
+The result depends heavily on the data input.
+
+# Usage
+
+100% compatibility with standard lib
+
+Replace
 
 ```go
-import "github.com/json-iterator/go"
+import "encoding/json"
-iter := jsoniter.ParseString(`[0,1,2,3]`)
+json.Marshal(&data)
-val := []int{}
-iter.Read(&val)
-fmt.Println(val[3])
 ```
 
-# Iterator-API for quick extraction
+with
-
-When you do not need to get all the data back, just extract some.
-
-Parse with Go iterator-api
 
 ```go
-import "github.com/json-iterator/go"
+import jsoniter "github.com/json-iterator/go"
-iter := ParseString(`[0, [1, 2], [3, 4], 5]`)
+
-count := 0
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
-for iter.ReadArray() {
+json.Marshal(&data)
-    iter.skip()
-    count++
-}
-fmt.Println(count) // 4
 ```
 
-# Any-API for maximum flexibility
+Replace
-
-Parse with Go any-api
 
 ```go
-import "github.com/json-iterator/go"
+import "encoding/json"
-iter := jsoniter.ParseString(`[{"field1":"11","field2":"12"},{"field1":"21","field2":"22"}]`)
+json.Unmarshal(input, &data)
-val := iter.ReadAny()
-fmt.Println(val.ToInt(1, "field2")) // 22
 ```
 
-Notice you can extract from nested data structure, and convert any type to the type to you want. 
+with
+
+```go
+import jsoniter "github.com/json-iterator/go"
+
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+json.Unmarshal(input, &data)
+```
+
+[More documentation](http://jsoniter.com/migrate-from-go-std.html)
 
 # How to get
 
@@ -64,4 +76,12 @@ go get github.com/json-iterator/go
 
 # Contribution Welcomed !
 
+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)

adapter.go

@@ -0,0 +1,150 @@
+package jsoniter
+
+import (
+	"bytes"
+	"io"
+)
+
+// RawMessage to make replace json with jsoniter
+type RawMessage []byte
+
+// Unmarshal adapts to json/encoding Unmarshal API
+//
+// Unmarshal parses the JSON-encoded data and stores the result in the value pointed to by v.
+// Refer to https://godoc.org/encoding/json#Unmarshal for more information
+func Unmarshal(data []byte, v interface{}) error {
+	return ConfigDefault.Unmarshal(data, v)
+}
+
+// UnmarshalFromString is a convenient method to read from string instead of []byte
+func UnmarshalFromString(str string, v interface{}) error {
+	return ConfigDefault.UnmarshalFromString(str, v)
+}
+
+// Get quick method to get value from deeply nested JSON structure
+func Get(data []byte, path ...interface{}) Any {
+	return ConfigDefault.Get(data, path...)
+}
+
+// Marshal adapts to json/encoding Marshal API
+//
+// Marshal returns the JSON encoding of v, adapts to json/encoding Marshal API
+// Refer to https://godoc.org/encoding/json#Marshal for more information
+func Marshal(v interface{}) ([]byte, error) {
+	return ConfigDefault.Marshal(v)
+}
+
+// MarshalIndent same as json.MarshalIndent. Prefix is not supported.
+func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
+	return ConfigDefault.MarshalIndent(v, prefix, indent)
+}
+
+// MarshalToString convenient method to write as string instead of []byte
+func MarshalToString(v interface{}) (string, error) {
+	return ConfigDefault.MarshalToString(v)
+}
+
+// NewDecoder adapts to json/stream NewDecoder API.
+//
+// NewDecoder returns a new decoder that reads from r.
+//
+// Instead of a json/encoding Decoder, an Decoder is returned
+// Refer to https://godoc.org/encoding/json#NewDecoder for more information
+func NewDecoder(reader io.Reader) *Decoder {
+	return ConfigDefault.NewDecoder(reader)
+}
+
+// Decoder reads and decodes JSON values from an input stream.
+// Decoder provides identical APIs with json/stream Decoder (Token() and UseNumber() are in progress)
+type Decoder struct {
+	iter *Iterator
+}
+
+// Decode decode JSON into interface{}
+func (adapter *Decoder) Decode(obj interface{}) error {
+	if adapter.iter.head == adapter.iter.tail && adapter.iter.reader != nil {
+		if !adapter.iter.loadMore() {
+			return io.EOF
+		}
+	}
+	adapter.iter.ReadVal(obj)
+	err := adapter.iter.Error
+	if err == io.EOF {
+		return nil
+	}
+	return adapter.iter.Error
+}
+
+// More is there more?
+func (adapter *Decoder) More() bool {
+	iter := adapter.iter
+	if iter.Error != nil {
+		return false
+	}
+	c := iter.nextToken()
+	if c == 0 {
+		return false
+	}
+	iter.unreadByte()
+	return c != ']' && c != '}'
+}
+
+// Buffered remaining buffer
+func (adapter *Decoder) Buffered() io.Reader {
+	remaining := adapter.iter.buf[adapter.iter.head:adapter.iter.tail]
+	return bytes.NewReader(remaining)
+}
+
+// UseNumber causes the Decoder to unmarshal a number into an interface{} as a
+// Number instead of as a float64.
+func (adapter *Decoder) UseNumber() {
+	cfg := adapter.iter.cfg.configBeforeFrozen
+	cfg.UseNumber = true
+	adapter.iter.cfg = cfg.frozeWithCacheReuse(adapter.iter.cfg.extraExtensions)
+}
+
+// DisallowUnknownFields causes the Decoder to return an error when the destination
+// is a struct and the input contains object keys which do not match any
+// non-ignored, exported fields in the destination.
+func (adapter *Decoder) DisallowUnknownFields() {
+	cfg := adapter.iter.cfg.configBeforeFrozen
+	cfg.DisallowUnknownFields = true
+	adapter.iter.cfg = cfg.frozeWithCacheReuse(adapter.iter.cfg.extraExtensions)
+}
+
+// NewEncoder same as json.NewEncoder
+func NewEncoder(writer io.Writer) *Encoder {
+	return ConfigDefault.NewEncoder(writer)
+}
+
+// Encoder same as json.Encoder
+type Encoder struct {
+	stream *Stream
+}
+
+// Encode encode interface{} as JSON to io.Writer
+func (adapter *Encoder) Encode(val interface{}) error {
+	adapter.stream.WriteVal(val)
+	adapter.stream.WriteRaw("\n")
+	adapter.stream.Flush()
+	return adapter.stream.Error
+}
+
+// SetIndent set the indention. Prefix is not supported
+func (adapter *Encoder) SetIndent(prefix, indent string) {
+	config := adapter.stream.cfg.configBeforeFrozen
+	config.IndentionStep = len(indent)
+	adapter.stream.cfg = config.frozeWithCacheReuse(adapter.stream.cfg.extraExtensions)
+}
+
+// SetEscapeHTML escape html by default, set to false to disable
+func (adapter *Encoder) SetEscapeHTML(escapeHTML bool) {
+	config := adapter.stream.cfg.configBeforeFrozen
+	config.EscapeHTML = escapeHTML
+	adapter.stream.cfg = config.frozeWithCacheReuse(adapter.stream.cfg.extraExtensions)
+}
+
+// Valid reports whether data is a valid JSON encoding.
+func Valid(data []byte) bool {
+	return ConfigDefault.Valid(data)
+}

any.go

@@ -1,427 +1,325 @@
 package jsoniter
 
 import (
+	"errors"
 	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
 	"reflect"
 	"strconv"
+	"unsafe"
 )
 
-type Any struct {
+// Any generic object representation.
-	val   interface{}
+// The lazy json implementation holds []byte and parse lazily.
-	Error error
+type Any interface {
-	LastAccessed interface{}
+	LastError() error
+	ValueType() ValueType
+	MustBeValid() Any
+	ToBool() bool
+	ToInt() int
+	ToInt32() int32
+	ToInt64() int64
+	ToUint() uint
+	ToUint32() uint32
+	ToUint64() uint64
+	ToFloat32() float32
+	ToFloat64() float64
+	ToString() string
+	ToVal(val interface{})
+	Get(path ...interface{}) Any
+	Size() int
+	Keys() []string
+	GetInterface() interface{}
+	WriteTo(stream *Stream)
 }
 
-func MakeAny(val interface{}) *Any {
+type baseAny struct{}
-	return &Any{val, nil, nil}
+
+func (any *baseAny) Get(path ...interface{}) Any {
+	return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
 }
 
-func (any *Any) Get(keys ...interface{}) interface{} {
+func (any *baseAny) Size() int {
-	ret, err := getPath(any.val, keys...)
+	return 0
-	any.LastAccessed = ret
+}
-	if err != nil {
+
-		any.Error = err
+func (any *baseAny) Keys() []string {
-		return "";
+	return []string{}
+}
+
+func (any *baseAny) ToVal(obj interface{}) {
+	panic("not implemented")
+}
+
+// WrapInt32 turn int32 into Any interface
+func WrapInt32(val int32) Any {
+	return &int32Any{baseAny{}, val}
+}
+
+// WrapInt64 turn int64 into Any interface
+func WrapInt64(val int64) Any {
+	return &int64Any{baseAny{}, val}
+}
+
+// WrapUint32 turn uint32 into Any interface
+func WrapUint32(val uint32) Any {
+	return &uint32Any{baseAny{}, val}
+}
+
+// WrapUint64 turn uint64 into Any interface
+func WrapUint64(val uint64) Any {
+	return &uint64Any{baseAny{}, val}
+}
+
+// WrapFloat64 turn float64 into Any interface
+func WrapFloat64(val float64) Any {
+	return &floatAny{baseAny{}, val}
+}
+
+// WrapString turn string into Any interface
+func WrapString(val string) Any {
+	return &stringAny{baseAny{}, val}
+}
+
+// Wrap turn a go object into Any interface
+func Wrap(val interface{}) Any {
+	if val == nil {
+		return &nilAny{}
 	}
-	return ret
+	asAny, isAny := val.(Any)
-}
+	if isAny {
-
+		return asAny
-func (any *Any) GetValueType(keys ...interface{}) ValueType {
-	ret, err := getPath(any.val, keys...)
-	any.LastAccessed = ret
-	if err != nil {
-		any.Error = err
-		return Invalid;
 	}
-
+	typ := reflect2.TypeOf(val)
-	switch reflect.TypeOf(ret).Kind() {
+	switch typ.Kind() {
-	case reflect.Uint8:
+	case reflect.Slice:
-		return Number;
+		return wrapArray(val)
-	case reflect.Int8:
-		return Number;
-	case reflect.Uint16:
-		return Number;
-	case reflect.Int16:
-		return Number;
-	case reflect.Uint32:
-		return Number;
-	case reflect.Int32:
-		return Number;
-	case reflect.Uint64:
-		return Number;
-	case reflect.Int64:
-		return Number;
-	case reflect.Int:
-		return Number;
-	case reflect.Uint:
-		return Number;
-	case reflect.Float32:
-		return Number;
-	case reflect.Float64:
-		return Number;
-	case reflect.String:
-		return String;
-	case reflect.Bool:
-		return Bool;
-	case reflect.Array:
-		return Array;
 	case reflect.Struct:
-		return Object;
+		return wrapStruct(val)
-	default:
+	case reflect.Map:
-		return Invalid
+		return wrapMap(val)
-	}
+	case reflect.String:
-}
+		return WrapString(val.(string))
-
+	case reflect.Int:
-func (any *Any) ToString(keys ...interface{}) string {
+		if strconv.IntSize == 32 {
-	ret, err := getPath(any.val, keys...)
+			return WrapInt32(int32(val.(int)))
-	any.LastAccessed = ret
-	if err != nil {
-		any.Error = err
-		return "";
-	}
-	switch ret := ret.(type) {
-	case uint8:
-		return strconv.FormatInt(int64(ret), 10);
-	case int8:
-		return strconv.FormatInt(int64(ret), 10);
-	case uint16:
-		return strconv.FormatInt(int64(ret), 10);
-	case int16:
-		return strconv.FormatInt(int64(ret), 10);
-	case uint32:
-		return strconv.FormatInt(int64(ret), 10);
-	case int32:
-		return strconv.FormatInt(int64(ret), 10);
-	case uint64:
-		return strconv.FormatUint(uint64(ret), 10);
-	case int64:
-		return strconv.FormatInt(int64(ret), 10);
-	case int:
-		return strconv.FormatInt(int64(ret), 10);
-	case uint:
-		return strconv.FormatInt(int64(ret), 10);
-	case float32:
-		return strconv.FormatFloat(float64(ret), 'E', -1, 32);
-	case float64:
-		return strconv.FormatFloat(ret, 'E', -1, 64);
-	case string:
-		return ret
-	default:
-		return fmt.Sprintf("%v", ret)
-	}
-}
-
-func (any *Any) ToUint8(keys ...interface{}) uint8 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return uint8(ret)
-}
-
-func (any *Any) ToInt8(keys ...interface{}) int8 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return int8(ret)
-}
-
-func (any *Any) ToUint16(keys ...interface{}) uint16 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return uint16(ret)
-}
-
-func (any *Any) ToInt16(keys ...interface{}) int16 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return int16(ret)
-}
-
-func (any *Any) ToUint32(keys ...interface{}) uint32 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return uint32(ret)
-}
-
-func (any *Any) ToInt32(keys ...interface{}) int32 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return int32(ret)
-}
-
-func (any *Any) ToUint64(keys ...interface{}) uint64 {
-	ret, err := getPathAsUint64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return uint64(ret)
-}
-
-func (any *Any) ToInt64(keys ...interface{}) int64 {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return int64(ret)
-}
-
-func (any *Any) ToInt(keys ...interface{}) int {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return int(ret)
-}
-
-func (any *Any) ToUint(keys ...interface{}) uint {
-	ret, err := getPathAsInt64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return uint(ret)
-}
-
-func (any *Any) ToFloat32(keys ...interface{}) float32 {
-	ret, err := getPathAsFloat64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return float32(ret)
-}
-
-func (any *Any) ToFloat64(keys ...interface{}) float64 {
-	ret, err := getPathAsFloat64(any, keys...)
-	if err != nil {
-		any.Error = err
-		return 0;
-	}
-	return ret
-}
-
-func (any *Any) ToBool(keys ...interface{}) bool {
-	ret, err := getPath(any.val, keys...)
-	any.LastAccessed = ret
-	if err != nil {
-		any.Error = err
-		return false;
-	}
-	typedRet, ok := ret.(bool)
-	if !ok {
-		any.Error = fmt.Errorf("%v is not bool", ret)
-		return false;
-	}
-	return typedRet
-}
-
-func (any *Any) IsNull(keys ...interface{}) bool {
-	ret, err := getPath(any.val, keys...)
-	any.LastAccessed = ret
-	if err != nil {
-		any.Error = err
-		return false;
-	}
-	return reflect.ValueOf(ret).IsNil()
-}
-
-func getPathAsInt64(any *Any, keys ...interface{}) (int64, error) {
-	ret, err := getPath(any.val, keys...)
-	any.LastAccessed = ret
-	if err != nil {
-		any.Error = err
-		return 0, err
-	}
-	switch ret := ret.(type) {
-	case uint8:
-		return int64(ret), nil;
-	case int8:
-		return int64(ret), nil;
-	case uint16:
-		return int64(ret), nil;
-	case int16:
-		return int64(ret), nil;
-	case uint32:
-		return int64(ret), nil;
-	case int32:
-		return int64(ret), nil;
-	case uint64:
-		return int64(ret), nil;
-	case int64:
-		return int64(ret), nil;
-	case int:
-		return int64(ret), nil;
-	case uint:
-		return int64(ret), nil;
-	case float32:
-		return int64(ret), nil;
-	case float64:
-		return int64(ret), nil;
-	case string:
-		intVal, err := strconv.ParseInt(ret, 10, 64)
-		if err != nil {
-			return 0, err
 		}
-		return intVal, nil;
+		return WrapInt64(int64(val.(int)))
-	default:
+	case reflect.Int8:
-		return 0, fmt.Errorf("%v is not number", ret)
+		return WrapInt32(int32(val.(int8)))
-	}
+	case reflect.Int16:
-}
+		return WrapInt32(int32(val.(int16)))
-
+	case reflect.Int32:
-func getPathAsUint64(any *Any, keys ...interface{}) (uint64, error) {
+		return WrapInt32(val.(int32))
-	ret, err := getPath(any.val, keys...)
+	case reflect.Int64:
-	any.LastAccessed = ret
+		return WrapInt64(val.(int64))
-	if err != nil {
+	case reflect.Uint:
-		any.Error = err
+		if strconv.IntSize == 32 {
-		return 0, err
+			return WrapUint32(uint32(val.(uint)))
-	}
-	switch ret := ret.(type) {
-	case uint8:
-		return uint64(ret), nil;
-	case int8:
-		return uint64(ret), nil;
-	case uint16:
-		return uint64(ret), nil;
-	case int16:
-		return uint64(ret), nil;
-	case uint32:
-		return uint64(ret), nil;
-	case int32:
-		return uint64(ret), nil;
-	case uint64:
-		return uint64(ret), nil;
-	case int64:
-		return uint64(ret), nil;
-	case int:
-		return uint64(ret), nil;
-	case uint:
-		return uint64(ret), nil;
-	case float32:
-		return uint64(ret), nil;
-	case float64:
-		return uint64(ret), nil;
-	case string:
-		intVal, err := strconv.ParseUint(ret, 10, 64)
-		if err != nil {
-			return 0, err
 		}
-		return intVal, nil;
+		return WrapUint64(uint64(val.(uint)))
-	default:
+	case reflect.Uintptr:
-		return 0, fmt.Errorf("%v is not number", ret)
+		if ptrSize == 32 {
-	}
+			return WrapUint32(uint32(val.(uintptr)))
-}
-
-func getPathAsFloat64(any *Any, keys ...interface{}) (float64, error) {
-	ret, err := getPath(any.val, keys...)
-	any.LastAccessed = ret
-	if err != nil {
-		any.Error = err
-		return 0, err
-	}
-	switch ret := ret.(type) {
-	case uint8:
-		return float64(ret), nil;
-	case int8:
-		return float64(ret), nil;
-	case uint16:
-		return float64(ret), nil;
-	case int16:
-		return float64(ret), nil;
-	case uint32:
-		return float64(ret), nil;
-	case int32:
-		return float64(ret), nil;
-	case uint64:
-		return float64(ret), nil;
-	case int64:
-		return float64(ret), nil;
-	case int:
-		return float64(ret), nil;
-	case uint:
-		return float64(ret), nil;
-	case float32:
-		return float64(ret), nil;
-	case float64:
-		return float64(ret), nil;
-	case string:
-		floatVal, err := strconv.ParseFloat(ret, 64)
-		if err != nil {
-			return 0, err
 		}
-		return floatVal, nil;
+		return WrapUint64(uint64(val.(uintptr)))
-	default:
+	case reflect.Uint8:
-		return 0, fmt.Errorf("%v is not number", ret)
+		return WrapUint32(uint32(val.(uint8)))
-	}
+	case reflect.Uint16:
-}
+		return WrapUint32(uint32(val.(uint16)))
-
+	case reflect.Uint32:
-func getPath(val interface{}, keys ...interface{}) (interface{}, error) {
+		return WrapUint32(uint32(val.(uint32)))
-	if (len(keys) == 0) {
+	case reflect.Uint64:
-		return val, nil;
+		return WrapUint64(val.(uint64))
-	}
+	case reflect.Float32:
-	switch key := keys[0].(type) {
+		return WrapFloat64(float64(val.(float32)))
-	case string:
+	case reflect.Float64:
-		nextVal, err := getFromMap(val, key)
+		return WrapFloat64(val.(float64))
-		if err != nil {
+	case reflect.Bool:
-			return nil, err
+		if val.(bool) == true {
+			return &trueAny{}
 		}
-		nextKeys := make([]interface{}, len(keys) - 1)
+		return &falseAny{}
-		copy(nextKeys, keys[1:])
+	}
-		return getPath(nextVal, nextKeys...)
+	return &invalidAny{baseAny{}, fmt.Errorf("unsupported type: %v", typ)}
-	case int:
+}
-		nextVal, err := getFromArray(val, key)
+
-		if err != nil {
+// ReadAny read next JSON element as an Any object. It is a better json.RawMessage.
-			return nil, err
+func (iter *Iterator) ReadAny() Any {
-		}
+	return iter.readAny()
-		nextKeys := make([]interface{}, len(keys) - 1)
+}
-		copy(nextKeys, keys[1:])
+
-		return getPath(nextVal, nextKeys...)
+func (iter *Iterator) readAny() Any {
+	c := iter.nextToken()
+	switch c {
+	case '"':
+		iter.unreadByte()
+		return &stringAny{baseAny{}, iter.ReadString()}
+	case 'n':
+		iter.skipThreeBytes('u', 'l', 'l') // null
+		return &nilAny{}
+	case 't':
+		iter.skipThreeBytes('r', 'u', 'e') // true
+		return &trueAny{}
+	case 'f':
+		iter.skipFourBytes('a', 'l', 's', 'e') // false
+		return &falseAny{}
+	case '{':
+		return iter.readObjectAny()
+	case '[':
+		return iter.readArrayAny()
+	case '-':
+		return iter.readNumberAny(false)
+	case 0:
+		return &invalidAny{baseAny{}, errors.New("input is empty")}
 	default:
-		return nil, fmt.Errorf("%v is not string or int", keys[0]);
+		return iter.readNumberAny(true)
 	}
-	return getPath(val, keys);
 }
 
-func getFromMap(val interface{}, key string) (interface{}, error) {
+func (iter *Iterator) readNumberAny(positive bool) Any {
-	mapVal, ok := val.(map[string]interface{})
+	iter.startCapture(iter.head - 1)
-	if !ok {
+	iter.skipNumber()
-		return nil, fmt.Errorf("%v is not map[string]interface{}", val)
+	lazyBuf := iter.stopCapture()
-	}
+	return &numberLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
-	ret, found := mapVal[key]
-	if !found {
-		return nil, fmt.Errorf("%v not found in %v", key, mapVal)
-	}
-	return ret, nil
 }
 
-func getFromArray(val interface{}, key int) (interface{}, error) {
+func (iter *Iterator) readObjectAny() Any {
-	arrayVal, ok := val.([]interface{})
+	iter.startCapture(iter.head - 1)
-	if !ok {
+	iter.skipObject()
-		return nil, fmt.Errorf("%v is not []interface{}", val)
+	lazyBuf := iter.stopCapture()
-	}
+	return &objectLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
-	if key >= len(arrayVal) {
+}
-		return nil, fmt.Errorf("%v exceed %v", key, arrayVal)
+
-	}
+func (iter *Iterator) readArrayAny() Any {
-	if key < 0 {
+	iter.startCapture(iter.head - 1)
-		return nil, fmt.Errorf("%v exceed %v", key, arrayVal)
+	iter.skipArray()
-	}
+	lazyBuf := iter.stopCapture()
-	return arrayVal[key], nil
+	return &arrayLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
+}
+
+func locateObjectField(iter *Iterator, target string) []byte {
+	var found []byte
+	iter.ReadObjectCB(func(iter *Iterator, field string) bool {
+		if field == target {
+			found = iter.SkipAndReturnBytes()
+			return false
+		}
+		iter.Skip()
+		return true
+	})
+	return found
+}
+
+func locateArrayElement(iter *Iterator, target int) []byte {
+	var found []byte
+	n := 0
+	iter.ReadArrayCB(func(iter *Iterator) bool {
+		if n == target {
+			found = iter.SkipAndReturnBytes()
+			return false
+		}
+		iter.Skip()
+		n++
+		return true
+	})
+	return found
+}
+
+func locatePath(iter *Iterator, path []interface{}) Any {
+	for i, pathKeyObj := range path {
+		switch pathKey := pathKeyObj.(type) {
+		case string:
+			valueBytes := locateObjectField(iter, pathKey)
+			if valueBytes == nil {
+				return newInvalidAny(path[i:])
+			}
+			iter.ResetBytes(valueBytes)
+		case int:
+			valueBytes := locateArrayElement(iter, pathKey)
+			if valueBytes == nil {
+				return newInvalidAny(path[i:])
+			}
+			iter.ResetBytes(valueBytes)
+		case int32:
+			if '*' == pathKey {
+				return iter.readAny().Get(path[i:]...)
+			}
+			return newInvalidAny(path[i:])
+		default:
+			return newInvalidAny(path[i:])
+		}
+	}
+	if iter.Error != nil && iter.Error != io.EOF {
+		return &invalidAny{baseAny{}, iter.Error}
+	}
+	return iter.readAny()
+}
+
+var anyType = reflect2.TypeOfPtr((*Any)(nil)).Elem()
+
+func createDecoderOfAny(ctx *ctx, typ reflect2.Type) ValDecoder {
+	if typ == anyType {
+		return &directAnyCodec{}
+	}
+	if typ.Implements(anyType) {
+		return &anyCodec{
+			valType: typ,
+		}
+	}
+	return nil
+}
+
+func createEncoderOfAny(ctx *ctx, typ reflect2.Type) ValEncoder {
+	if typ == anyType {
+		return &directAnyCodec{}
+	}
+	if typ.Implements(anyType) {
+		return &anyCodec{
+			valType: typ,
+		}
+	}
+	return nil
+}
+
+type anyCodec struct {
+	valType reflect2.Type
+}
+
+func (codec *anyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	panic("not implemented")
+}
+
+func (codec *anyCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	obj := codec.valType.UnsafeIndirect(ptr)
+	any := obj.(Any)
+	any.WriteTo(stream)
+}
+
+func (codec *anyCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	obj := codec.valType.UnsafeIndirect(ptr)
+	any := obj.(Any)
+	return any.Size() == 0
+}
+
+type directAnyCodec struct {
+}
+
+func (codec *directAnyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	*(*Any)(ptr) = iter.readAny()
+}
+
+func (codec *directAnyCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	any := *(*Any)(ptr)
+	if any == nil {
+		stream.WriteNil()
+		return
+	}
+	any.WriteTo(stream)
+}
+
+func (codec *directAnyCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	any := *(*Any)(ptr)
+	return any.Size() == 0
 }

any_array.go

@@ -0,0 +1,278 @@
+package jsoniter
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type arrayLazyAny struct {
+	baseAny
+	cfg *frozenConfig
+	buf []byte
+	err error
+}
+
+func (any *arrayLazyAny) ValueType() ValueType {
+	return ArrayValue
+}
+
+func (any *arrayLazyAny) MustBeValid() Any {
+	return any
+}
+
+func (any *arrayLazyAny) LastError() error {
+	return any.err
+}
+
+func (any *arrayLazyAny) ToBool() bool {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	return iter.ReadArray()
+}
+
+func (any *arrayLazyAny) ToInt() int {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToInt32() int32 {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToInt64() int64 {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToUint() uint {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToUint32() uint32 {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToUint64() uint64 {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToFloat32() float32 {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToFloat64() float64 {
+	if any.ToBool() {
+		return 1
+	}
+	return 0
+}
+
+func (any *arrayLazyAny) ToString() string {
+	return *(*string)(unsafe.Pointer(&any.buf))
+}
+
+func (any *arrayLazyAny) ToVal(val interface{}) {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	iter.ReadVal(val)
+}
+
+func (any *arrayLazyAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	switch firstPath := path[0].(type) {
+	case int:
+		iter := any.cfg.BorrowIterator(any.buf)
+		defer any.cfg.ReturnIterator(iter)
+		valueBytes := locateArrayElement(iter, firstPath)
+		if valueBytes == nil {
+			return newInvalidAny(path)
+		}
+		iter.ResetBytes(valueBytes)
+		return locatePath(iter, path[1:])
+	case int32:
+		if '*' == firstPath {
+			iter := any.cfg.BorrowIterator(any.buf)
+			defer any.cfg.ReturnIterator(iter)
+			arr := make([]Any, 0)
+			iter.ReadArrayCB(func(iter *Iterator) bool {
+				found := iter.readAny().Get(path[1:]...)
+				if found.ValueType() != InvalidValue {
+					arr = append(arr, found)
+				}
+				return true
+			})
+			return wrapArray(arr)
+		}
+		return newInvalidAny(path)
+	default:
+		return newInvalidAny(path)
+	}
+}
+
+func (any *arrayLazyAny) Size() int {
+	size := 0
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	iter.ReadArrayCB(func(iter *Iterator) bool {
+		size++
+		iter.Skip()
+		return true
+	})
+	return size
+}
+
+func (any *arrayLazyAny) WriteTo(stream *Stream) {
+	stream.Write(any.buf)
+}
+
+func (any *arrayLazyAny) GetInterface() interface{} {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	return iter.Read()
+}
+
+type arrayAny struct {
+	baseAny
+	val reflect.Value
+}
+
+func wrapArray(val interface{}) *arrayAny {
+	return &arrayAny{baseAny{}, reflect.ValueOf(val)}
+}
+
+func (any *arrayAny) ValueType() ValueType {
+	return ArrayValue
+}
+
+func (any *arrayAny) MustBeValid() Any {
+	return any
+}
+
+func (any *arrayAny) LastError() error {
+	return nil
+}
+
+func (any *arrayAny) ToBool() bool {
+	return any.val.Len() != 0
+}
+
+func (any *arrayAny) ToInt() int {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToInt32() int32 {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToInt64() int64 {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToUint() uint {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToUint32() uint32 {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToUint64() uint64 {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToFloat32() float32 {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToFloat64() float64 {
+	if any.val.Len() == 0 {
+		return 0
+	}
+	return 1
+}
+
+func (any *arrayAny) ToString() string {
+	str, _ := MarshalToString(any.val.Interface())
+	return str
+}
+
+func (any *arrayAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	switch firstPath := path[0].(type) {
+	case int:
+		if firstPath < 0 || firstPath >= any.val.Len() {
+			return newInvalidAny(path)
+		}
+		return Wrap(any.val.Index(firstPath).Interface())
+	case int32:
+		if '*' == firstPath {
+			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() != InvalidValue {
+					mappedAll = append(mappedAll, mapped)
+				}
+			}
+			return wrapArray(mappedAll)
+		}
+		return newInvalidAny(path)
+	default:
+		return newInvalidAny(path)
+	}
+}
+
+func (any *arrayAny) Size() int {
+	return any.val.Len()
+}
+
+func (any *arrayAny) WriteTo(stream *Stream) {
+	stream.WriteVal(any.val)
+}
+
+func (any *arrayAny) GetInterface() interface{} {
+	return any.val.Interface()
+}

any_bool.go

@@ -0,0 +1,137 @@
+package jsoniter
+
+type trueAny struct {
+	baseAny
+}
+
+func (any *trueAny) LastError() error {
+	return nil
+}
+
+func (any *trueAny) ToBool() bool {
+	return true
+}
+
+func (any *trueAny) ToInt() int {
+	return 1
+}
+
+func (any *trueAny) ToInt32() int32 {
+	return 1
+}
+
+func (any *trueAny) ToInt64() int64 {
+	return 1
+}
+
+func (any *trueAny) ToUint() uint {
+	return 1
+}
+
+func (any *trueAny) ToUint32() uint32 {
+	return 1
+}
+
+func (any *trueAny) ToUint64() uint64 {
+	return 1
+}
+
+func (any *trueAny) ToFloat32() float32 {
+	return 1
+}
+
+func (any *trueAny) ToFloat64() float64 {
+	return 1
+}
+
+func (any *trueAny) ToString() string {
+	return "true"
+}
+
+func (any *trueAny) WriteTo(stream *Stream) {
+	stream.WriteTrue()
+}
+
+func (any *trueAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *trueAny) GetInterface() interface{} {
+	return true
+}
+
+func (any *trueAny) ValueType() ValueType {
+	return BoolValue
+}
+
+func (any *trueAny) MustBeValid() Any {
+	return any
+}
+
+type falseAny struct {
+	baseAny
+}
+
+func (any *falseAny) LastError() error {
+	return nil
+}
+
+func (any *falseAny) ToBool() bool {
+	return false
+}
+
+func (any *falseAny) ToInt() int {
+	return 0
+}
+
+func (any *falseAny) ToInt32() int32 {
+	return 0
+}
+
+func (any *falseAny) ToInt64() int64 {
+	return 0
+}
+
+func (any *falseAny) ToUint() uint {
+	return 0
+}
+
+func (any *falseAny) ToUint32() uint32 {
+	return 0
+}
+
+func (any *falseAny) ToUint64() uint64 {
+	return 0
+}
+
+func (any *falseAny) ToFloat32() float32 {
+	return 0
+}
+
+func (any *falseAny) ToFloat64() float64 {
+	return 0
+}
+
+func (any *falseAny) ToString() string {
+	return "false"
+}
+
+func (any *falseAny) WriteTo(stream *Stream) {
+	stream.WriteFalse()
+}
+
+func (any *falseAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *falseAny) GetInterface() interface{} {
+	return false
+}
+
+func (any *falseAny) ValueType() ValueType {
+	return BoolValue
+}
+
+func (any *falseAny) MustBeValid() Any {
+	return any
+}

any_float.go

@@ -0,0 +1,83 @@
+package jsoniter
+
+import (
+	"strconv"
+)
+
+type floatAny struct {
+	baseAny
+	val float64
+}
+
+func (any *floatAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *floatAny) ValueType() ValueType {
+	return NumberValue
+}
+
+func (any *floatAny) MustBeValid() Any {
+	return any
+}
+
+func (any *floatAny) LastError() error {
+	return nil
+}
+
+func (any *floatAny) ToBool() bool {
+	return any.ToFloat64() != 0
+}
+
+func (any *floatAny) ToInt() int {
+	return int(any.val)
+}
+
+func (any *floatAny) ToInt32() int32 {
+	return int32(any.val)
+}
+
+func (any *floatAny) ToInt64() int64 {
+	return int64(any.val)
+}
+
+func (any *floatAny) ToUint() uint {
+	if any.val > 0 {
+		return uint(any.val)
+	}
+	return 0
+}
+
+func (any *floatAny) ToUint32() uint32 {
+	if any.val > 0 {
+		return uint32(any.val)
+	}
+	return 0
+}
+
+func (any *floatAny) ToUint64() uint64 {
+	if any.val > 0 {
+		return uint64(any.val)
+	}
+	return 0
+}
+
+func (any *floatAny) ToFloat32() float32 {
+	return float32(any.val)
+}
+
+func (any *floatAny) ToFloat64() float64 {
+	return any.val
+}
+
+func (any *floatAny) ToString() string {
+	return strconv.FormatFloat(any.val, 'E', -1, 64)
+}
+
+func (any *floatAny) WriteTo(stream *Stream) {
+	stream.WriteFloat64(any.val)
+}
+
+func (any *floatAny) GetInterface() interface{} {
+	return any.val
+}

any_int32.go

@@ -0,0 +1,74 @@
+package jsoniter
+
+import (
+	"strconv"
+)
+
+type int32Any struct {
+	baseAny
+	val int32
+}
+
+func (any *int32Any) LastError() error {
+	return nil
+}
+
+func (any *int32Any) ValueType() ValueType {
+	return NumberValue
+}
+
+func (any *int32Any) MustBeValid() Any {
+	return any
+}
+
+func (any *int32Any) ToBool() bool {
+	return any.val != 0
+}
+
+func (any *int32Any) ToInt() int {
+	return int(any.val)
+}
+
+func (any *int32Any) ToInt32() int32 {
+	return any.val
+}
+
+func (any *int32Any) ToInt64() int64 {
+	return int64(any.val)
+}
+
+func (any *int32Any) ToUint() uint {
+	return uint(any.val)
+}
+
+func (any *int32Any) ToUint32() uint32 {
+	return uint32(any.val)
+}
+
+func (any *int32Any) ToUint64() uint64 {
+	return uint64(any.val)
+}
+
+func (any *int32Any) ToFloat32() float32 {
+	return float32(any.val)
+}
+
+func (any *int32Any) ToFloat64() float64 {
+	return float64(any.val)
+}
+
+func (any *int32Any) ToString() string {
+	return strconv.FormatInt(int64(any.val), 10)
+}
+
+func (any *int32Any) WriteTo(stream *Stream) {
+	stream.WriteInt32(any.val)
+}
+
+func (any *int32Any) Parse() *Iterator {
+	return nil
+}
+
+func (any *int32Any) GetInterface() interface{} {
+	return any.val
+}

any_int64.go

@@ -0,0 +1,74 @@
+package jsoniter
+
+import (
+	"strconv"
+)
+
+type int64Any struct {
+	baseAny
+	val int64
+}
+
+func (any *int64Any) LastError() error {
+	return nil
+}
+
+func (any *int64Any) ValueType() ValueType {
+	return NumberValue
+}
+
+func (any *int64Any) MustBeValid() Any {
+	return any
+}
+
+func (any *int64Any) ToBool() bool {
+	return any.val != 0
+}
+
+func (any *int64Any) ToInt() int {
+	return int(any.val)
+}
+
+func (any *int64Any) ToInt32() int32 {
+	return int32(any.val)
+}
+
+func (any *int64Any) ToInt64() int64 {
+	return any.val
+}
+
+func (any *int64Any) ToUint() uint {
+	return uint(any.val)
+}
+
+func (any *int64Any) ToUint32() uint32 {
+	return uint32(any.val)
+}
+
+func (any *int64Any) ToUint64() uint64 {
+	return uint64(any.val)
+}
+
+func (any *int64Any) ToFloat32() float32 {
+	return float32(any.val)
+}
+
+func (any *int64Any) ToFloat64() float64 {
+	return float64(any.val)
+}
+
+func (any *int64Any) ToString() string {
+	return strconv.FormatInt(any.val, 10)
+}
+
+func (any *int64Any) WriteTo(stream *Stream) {
+	stream.WriteInt64(any.val)
+}
+
+func (any *int64Any) Parse() *Iterator {
+	return nil
+}
+
+func (any *int64Any) GetInterface() interface{} {
+	return any.val
+}

any_invalid.go

@@ -0,0 +1,82 @@
+package jsoniter
+
+import "fmt"
+
+type invalidAny struct {
+	baseAny
+	err error
+}
+
+func newInvalidAny(path []interface{}) *invalidAny {
+	return &invalidAny{baseAny{}, fmt.Errorf("%v not found", path)}
+}
+
+func (any *invalidAny) LastError() error {
+	return any.err
+}
+
+func (any *invalidAny) ValueType() ValueType {
+	return InvalidValue
+}
+
+func (any *invalidAny) MustBeValid() Any {
+	panic(any.err)
+}
+
+func (any *invalidAny) ToBool() bool {
+	return false
+}
+
+func (any *invalidAny) ToInt() int {
+	return 0
+}
+
+func (any *invalidAny) ToInt32() int32 {
+	return 0
+}
+
+func (any *invalidAny) ToInt64() int64 {
+	return 0
+}
+
+func (any *invalidAny) ToUint() uint {
+	return 0
+}
+
+func (any *invalidAny) ToUint32() uint32 {
+	return 0
+}
+
+func (any *invalidAny) ToUint64() uint64 {
+	return 0
+}
+
+func (any *invalidAny) ToFloat32() float32 {
+	return 0
+}
+
+func (any *invalidAny) ToFloat64() float64 {
+	return 0
+}
+
+func (any *invalidAny) ToString() string {
+	return ""
+}
+
+func (any *invalidAny) WriteTo(stream *Stream) {
+}
+
+func (any *invalidAny) Get(path ...interface{}) Any {
+	if any.err == nil {
+		return &invalidAny{baseAny{}, fmt.Errorf("get %v from invalid", path)}
+	}
+	return &invalidAny{baseAny{}, fmt.Errorf("%v, get %v from invalid", any.err, path)}
+}
+
+func (any *invalidAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *invalidAny) GetInterface() interface{} {
+	return nil
+}

any_nil.go

@@ -0,0 +1,69 @@
+package jsoniter
+
+type nilAny struct {
+	baseAny
+}
+
+func (any *nilAny) LastError() error {
+	return nil
+}
+
+func (any *nilAny) ValueType() ValueType {
+	return NilValue
+}
+
+func (any *nilAny) MustBeValid() Any {
+	return any
+}
+
+func (any *nilAny) ToBool() bool {
+	return false
+}
+
+func (any *nilAny) ToInt() int {
+	return 0
+}
+
+func (any *nilAny) ToInt32() int32 {
+	return 0
+}
+
+func (any *nilAny) ToInt64() int64 {
+	return 0
+}
+
+func (any *nilAny) ToUint() uint {
+	return 0
+}
+
+func (any *nilAny) ToUint32() uint32 {
+	return 0
+}
+
+func (any *nilAny) ToUint64() uint64 {
+	return 0
+}
+
+func (any *nilAny) ToFloat32() float32 {
+	return 0
+}
+
+func (any *nilAny) ToFloat64() float64 {
+	return 0
+}
+
+func (any *nilAny) ToString() string {
+	return ""
+}
+
+func (any *nilAny) WriteTo(stream *Stream) {
+	stream.WriteNil()
+}
+
+func (any *nilAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *nilAny) GetInterface() interface{} {
+	return nil
+}

any_number.go

@@ -0,0 +1,123 @@
+package jsoniter
+
+import (
+	"io"
+	"unsafe"
+)
+
+type numberLazyAny struct {
+	baseAny
+	cfg *frozenConfig
+	buf []byte
+	err error
+}
+
+func (any *numberLazyAny) ValueType() ValueType {
+	return NumberValue
+}
+
+func (any *numberLazyAny) MustBeValid() Any {
+	return any
+}
+
+func (any *numberLazyAny) LastError() error {
+	return any.err
+}
+
+func (any *numberLazyAny) ToBool() bool {
+	return any.ToFloat64() != 0
+}
+
+func (any *numberLazyAny) ToInt() int {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadInt()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToInt32() int32 {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadInt32()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToInt64() int64 {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadInt64()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToUint() uint {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadUint()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToUint32() uint32 {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadUint32()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToUint64() uint64 {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadUint64()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToFloat32() float32 {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadFloat32()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToFloat64() float64 {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	val := iter.ReadFloat64()
+	if iter.Error != nil && iter.Error != io.EOF {
+		any.err = iter.Error
+	}
+	return val
+}
+
+func (any *numberLazyAny) ToString() string {
+	return *(*string)(unsafe.Pointer(&any.buf))
+}
+
+func (any *numberLazyAny) WriteTo(stream *Stream) {
+	stream.Write(any.buf)
+}
+
+func (any *numberLazyAny) GetInterface() interface{} {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	return iter.Read()
+}

any_object.go

@@ -0,0 +1,374 @@
+package jsoniter
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type objectLazyAny struct {
+	baseAny
+	cfg *frozenConfig
+	buf []byte
+	err error
+}
+
+func (any *objectLazyAny) ValueType() ValueType {
+	return ObjectValue
+}
+
+func (any *objectLazyAny) MustBeValid() Any {
+	return any
+}
+
+func (any *objectLazyAny) LastError() error {
+	return any.err
+}
+
+func (any *objectLazyAny) ToBool() bool {
+	return true
+}
+
+func (any *objectLazyAny) ToInt() int {
+	return 0
+}
+
+func (any *objectLazyAny) ToInt32() int32 {
+	return 0
+}
+
+func (any *objectLazyAny) ToInt64() int64 {
+	return 0
+}
+
+func (any *objectLazyAny) ToUint() uint {
+	return 0
+}
+
+func (any *objectLazyAny) ToUint32() uint32 {
+	return 0
+}
+
+func (any *objectLazyAny) ToUint64() uint64 {
+	return 0
+}
+
+func (any *objectLazyAny) ToFloat32() float32 {
+	return 0
+}
+
+func (any *objectLazyAny) ToFloat64() float64 {
+	return 0
+}
+
+func (any *objectLazyAny) ToString() string {
+	return *(*string)(unsafe.Pointer(&any.buf))
+}
+
+func (any *objectLazyAny) ToVal(obj interface{}) {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	iter.ReadVal(obj)
+}
+
+func (any *objectLazyAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	switch firstPath := path[0].(type) {
+	case string:
+		iter := any.cfg.BorrowIterator(any.buf)
+		defer any.cfg.ReturnIterator(iter)
+		valueBytes := locateObjectField(iter, firstPath)
+		if valueBytes == nil {
+			return newInvalidAny(path)
+		}
+		iter.ResetBytes(valueBytes)
+		return locatePath(iter, path[1:])
+	case int32:
+		if '*' == firstPath {
+			mappedAll := map[string]Any{}
+			iter := any.cfg.BorrowIterator(any.buf)
+			defer any.cfg.ReturnIterator(iter)
+			iter.ReadMapCB(func(iter *Iterator, field string) bool {
+				mapped := locatePath(iter, path[1:])
+				if mapped.ValueType() != InvalidValue {
+					mappedAll[field] = mapped
+				}
+				return true
+			})
+			return wrapMap(mappedAll)
+		}
+		return newInvalidAny(path)
+	default:
+		return newInvalidAny(path)
+	}
+}
+
+func (any *objectLazyAny) Keys() []string {
+	keys := []string{}
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	iter.ReadMapCB(func(iter *Iterator, field string) bool {
+		iter.Skip()
+		keys = append(keys, field)
+		return true
+	})
+	return keys
+}
+
+func (any *objectLazyAny) Size() int {
+	size := 0
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	iter.ReadObjectCB(func(iter *Iterator, field string) bool {
+		iter.Skip()
+		size++
+		return true
+	})
+	return size
+}
+
+func (any *objectLazyAny) WriteTo(stream *Stream) {
+	stream.Write(any.buf)
+}
+
+func (any *objectLazyAny) GetInterface() interface{} {
+	iter := any.cfg.BorrowIterator(any.buf)
+	defer any.cfg.ReturnIterator(iter)
+	return iter.Read()
+}
+
+type objectAny struct {
+	baseAny
+	err error
+	val reflect.Value
+}
+
+func wrapStruct(val interface{}) *objectAny {
+	return &objectAny{baseAny{}, nil, reflect.ValueOf(val)}
+}
+
+func (any *objectAny) ValueType() ValueType {
+	return ObjectValue
+}
+
+func (any *objectAny) MustBeValid() Any {
+	return any
+}
+
+func (any *objectAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *objectAny) LastError() error {
+	return any.err
+}
+
+func (any *objectAny) ToBool() bool {
+	return any.val.NumField() != 0
+}
+
+func (any *objectAny) ToInt() int {
+	return 0
+}
+
+func (any *objectAny) ToInt32() int32 {
+	return 0
+}
+
+func (any *objectAny) ToInt64() int64 {
+	return 0
+}
+
+func (any *objectAny) ToUint() uint {
+	return 0
+}
+
+func (any *objectAny) ToUint32() uint32 {
+	return 0
+}
+
+func (any *objectAny) ToUint64() uint64 {
+	return 0
+}
+
+func (any *objectAny) ToFloat32() float32 {
+	return 0
+}
+
+func (any *objectAny) ToFloat64() float64 {
+	return 0
+}
+
+func (any *objectAny) ToString() string {
+	str, err := MarshalToString(any.val.Interface())
+	any.err = err
+	return str
+}
+
+func (any *objectAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	switch firstPath := path[0].(type) {
+	case string:
+		field := any.val.FieldByName(firstPath)
+		if !field.IsValid() {
+			return newInvalidAny(path)
+		}
+		return Wrap(field.Interface())
+	case int32:
+		if '*' == firstPath {
+			mappedAll := map[string]Any{}
+			for i := 0; i < any.val.NumField(); i++ {
+				field := any.val.Field(i)
+				if field.CanInterface() {
+					mapped := Wrap(field.Interface()).Get(path[1:]...)
+					if mapped.ValueType() != InvalidValue {
+						mappedAll[any.val.Type().Field(i).Name] = mapped
+					}
+				}
+			}
+			return wrapMap(mappedAll)
+		}
+		return newInvalidAny(path)
+	default:
+		return newInvalidAny(path)
+	}
+}
+
+func (any *objectAny) Keys() []string {
+	keys := make([]string, 0, any.val.NumField())
+	for i := 0; i < any.val.NumField(); i++ {
+		keys = append(keys, any.val.Type().Field(i).Name)
+	}
+	return keys
+}
+
+func (any *objectAny) Size() int {
+	return any.val.NumField()
+}
+
+func (any *objectAny) WriteTo(stream *Stream) {
+	stream.WriteVal(any.val)
+}
+
+func (any *objectAny) GetInterface() interface{} {
+	return any.val.Interface()
+}
+
+type mapAny struct {
+	baseAny
+	err error
+	val reflect.Value
+}
+
+func wrapMap(val interface{}) *mapAny {
+	return &mapAny{baseAny{}, nil, reflect.ValueOf(val)}
+}
+
+func (any *mapAny) ValueType() ValueType {
+	return ObjectValue
+}
+
+func (any *mapAny) MustBeValid() Any {
+	return any
+}
+
+func (any *mapAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *mapAny) LastError() error {
+	return any.err
+}
+
+func (any *mapAny) ToBool() bool {
+	return true
+}
+
+func (any *mapAny) ToInt() int {
+	return 0
+}
+
+func (any *mapAny) ToInt32() int32 {
+	return 0
+}
+
+func (any *mapAny) ToInt64() int64 {
+	return 0
+}
+
+func (any *mapAny) ToUint() uint {
+	return 0
+}
+
+func (any *mapAny) ToUint32() uint32 {
+	return 0
+}
+
+func (any *mapAny) ToUint64() uint64 {
+	return 0
+}
+
+func (any *mapAny) ToFloat32() float32 {
+	return 0
+}
+
+func (any *mapAny) ToFloat64() float64 {
+	return 0
+}
+
+func (any *mapAny) ToString() string {
+	str, err := MarshalToString(any.val.Interface())
+	any.err = err
+	return str
+}
+
+func (any *mapAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	switch firstPath := path[0].(type) {
+	case int32:
+		if '*' == firstPath {
+			mappedAll := map[string]Any{}
+			for _, key := range any.val.MapKeys() {
+				keyAsStr := key.String()
+				element := Wrap(any.val.MapIndex(key).Interface())
+				mapped := element.Get(path[1:]...)
+				if mapped.ValueType() != InvalidValue {
+					mappedAll[keyAsStr] = mapped
+				}
+			}
+			return wrapMap(mappedAll)
+		}
+		return newInvalidAny(path)
+	default:
+		value := any.val.MapIndex(reflect.ValueOf(firstPath))
+		if !value.IsValid() {
+			return newInvalidAny(path)
+		}
+		return Wrap(value.Interface())
+	}
+}
+
+func (any *mapAny) Keys() []string {
+	keys := make([]string, 0, any.val.Len())
+	for _, key := range any.val.MapKeys() {
+		keys = append(keys, key.String())
+	}
+	return keys
+}
+
+func (any *mapAny) Size() int {
+	return any.val.Len()
+}
+
+func (any *mapAny) WriteTo(stream *Stream) {
+	stream.WriteVal(any.val)
+}
+
+func (any *mapAny) GetInterface() interface{} {
+	return any.val.Interface()
+}

any_str.go

@@ -0,0 +1,166 @@
+package jsoniter
+
+import (
+	"fmt"
+	"strconv"
+)
+
+type stringAny struct {
+	baseAny
+	val string
+}
+
+func (any *stringAny) Get(path ...interface{}) Any {
+	if len(path) == 0 {
+		return any
+	}
+	return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
+}
+
+func (any *stringAny) Parse() *Iterator {
+	return nil
+}
+
+func (any *stringAny) ValueType() ValueType {
+	return StringValue
+}
+
+func (any *stringAny) MustBeValid() Any {
+	return any
+}
+
+func (any *stringAny) LastError() error {
+	return nil
+}
+
+func (any *stringAny) ToBool() bool {
+	str := any.ToString()
+	if str == "0" {
+		return false
+	}
+	for _, c := range str {
+		switch c {
+		case ' ', '\n', '\r', '\t':
+		default:
+			return true
+		}
+	}
+	return false
+}
+
+func (any *stringAny) ToInt() int {
+	return int(any.ToInt64())
+
+}
+
+func (any *stringAny) ToInt32() int32 {
+	return int32(any.ToInt64())
+}
+
+func (any *stringAny) ToInt64() int64 {
+	if any.val == "" {
+		return 0
+	}
+
+	flag := 1
+	startPos := 0
+	if any.val[0] == '+' || any.val[0] == '-' {
+		startPos = 1
+	}
+
+	if any.val[0] == '-' {
+		flag = -1
+	}
+
+	endPos := startPos
+	for i := startPos; i < len(any.val); i++ {
+		if any.val[i] >= '0' && any.val[i] <= '9' {
+			endPos = i + 1
+		} else {
+			break
+		}
+	}
+	parsed, _ := strconv.ParseInt(any.val[startPos:endPos], 10, 64)
+	return int64(flag) * parsed
+}
+
+func (any *stringAny) ToUint() uint {
+	return uint(any.ToUint64())
+}
+
+func (any *stringAny) ToUint32() uint32 {
+	return uint32(any.ToUint64())
+}
+
+func (any *stringAny) ToUint64() uint64 {
+	if any.val == "" {
+		return 0
+	}
+
+	startPos := 0
+
+	if any.val[0] == '-' {
+		return 0
+	}
+	if any.val[0] == '+' {
+		startPos = 1
+	}
+
+	endPos := startPos
+	for i := startPos; i < len(any.val); i++ {
+		if any.val[i] >= '0' && any.val[i] <= '9' {
+			endPos = i + 1
+		} else {
+			break
+		}
+	}
+	parsed, _ := strconv.ParseUint(any.val[startPos:endPos], 10, 64)
+	return parsed
+}
+
+func (any *stringAny) ToFloat32() float32 {
+	return float32(any.ToFloat64())
+}
+
+func (any *stringAny) ToFloat64() float64 {
+	if len(any.val) == 0 {
+		return 0
+	}
+
+	// first char invalid
+	if any.val[0] != '+' && any.val[0] != '-' && (any.val[0] > '9' || any.val[0] < '0') {
+		return 0
+	}
+
+	// extract valid num expression from string
+	// eg 123true => 123, -12.12xxa => -12.12
+	endPos := 1
+	for i := 1; i < len(any.val); i++ {
+		if any.val[i] == '.' || any.val[i] == 'e' || any.val[i] == 'E' || any.val[i] == '+' || any.val[i] == '-' {
+			endPos = i + 1
+			continue
+		}
+
+		// end position is the first char which is not digit
+		if any.val[i] >= '0' && any.val[i] <= '9' {
+			endPos = i + 1
+		} else {
+			endPos = i
+			break
+		}
+	}
+	parsed, _ := strconv.ParseFloat(any.val[:endPos], 64)
+	return parsed
+}
+
+func (any *stringAny) ToString() string {
+	return any.val
+}
+
+func (any *stringAny) WriteTo(stream *Stream) {
+	stream.WriteString(any.val)
+}
+
+func (any *stringAny) GetInterface() interface{} {
+	return any.val
+}

any_test.go

@@ -1,72 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"fmt"
-)
-
-func Test_get_from_map(t *testing.T) {
-	any := Any{val: map[string]interface{}{
-		"hello": "world",
-	}}
-	if any.ToString("hello") != "world" {
-		t.FailNow()
-	}
-}
-
-func Test_get_from_array(t *testing.T) {
-	any := Any{val: []interface{}{
-		"hello", "world",
-	}}
-	if any.ToString(1) != "world" {
-		t.FailNow()
-	}
-}
-
-func Test_get_int(t *testing.T) {
-	any := Any{val: []interface{}{
-		1, 2, 3,
-	}}
-	if any.ToInt(1) != 2 {
-		t.FailNow()
-	}
-}
-
-func Test_is_null(t *testing.T) {
-	any := Any{val: []interface{}{
-		1, 2, 3,
-	}}
-	if any.IsNull() != false {
-		t.FailNow()
-	}
-}
-
-func Test_get_bool(t *testing.T) {
-	any := Any{val: []interface{}{
-		true, true, false,
-	}}
-	if any.ToBool(1) != true {
-		t.FailNow()
-	}
-}
-
-func Test_nested_read(t *testing.T) {
-	any := Any{val: []interface{}{
-		true, map[string]interface{}{
-			"hello": "world",
-		}, false,
-	}}
-	if any.ToString(1, "hello") != "world" {
-		fmt.Println(any.Error)
-		t.FailNow()
-	}
-}
-
-func Test_int_to_string(t *testing.T) {
-	any := Any{val: []interface{}{
-		true, 5, false,
-	}}
-	if any.ToString(1) != "5" {
-		t.FailNow()
-	}
-}

any_tests/jsoniter_any_array_test.go

@@ -0,0 +1,123 @@
+package any_tests
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_read_empty_array_as_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("[]"))
+	should.Equal(jsoniter.ArrayValue, any.Get().ValueType())
+	should.Equal(jsoniter.InvalidValue, any.Get(0.3).ValueType())
+	should.Equal(0, any.Size())
+	should.Equal(jsoniter.ArrayValue, any.ValueType())
+	should.Nil(any.LastError())
+	should.Equal(0, any.ToInt())
+	should.Equal(int32(0), any.ToInt32())
+	should.Equal(int64(0), any.ToInt64())
+	should.Equal(uint(0), any.ToUint())
+	should.Equal(uint32(0), any.ToUint32())
+	should.Equal(uint64(0), any.ToUint64())
+	should.Equal(float32(0), any.ToFloat32())
+	should.Equal(float64(0), any.ToFloat64())
+}
+
+func Test_read_one_element_array_as_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("[1]"))
+	should.Equal(1, any.Size())
+}
+
+func Test_read_two_element_array_as_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("[1,2]"))
+	should.Equal(1, any.Get(0).ToInt())
+	should.Equal(2, any.Size())
+	should.True(any.ToBool())
+	should.Equal(1, any.ToInt())
+	should.Equal([]interface{}{float64(1), float64(2)}, any.GetInterface())
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("[1,2]", string(stream.Buffer()))
+	arr := []int{}
+	any.ToVal(&arr)
+	should.Equal([]int{1, 2}, arr)
+}
+
+func Test_wrap_array_and_convert_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Wrap([]int{1, 2, 3})
+	any2 := jsoniter.Wrap([]int{})
+
+	should.Equal("[1,2,3]", any.ToString())
+	should.True(any.ToBool())
+	should.False(any2.ToBool())
+
+	should.Equal(1, any.ToInt())
+	should.Equal(0, any2.ToInt())
+	should.Equal(int32(1), any.ToInt32())
+	should.Equal(int32(0), any2.ToInt32())
+	should.Equal(int64(1), any.ToInt64())
+	should.Equal(int64(0), any2.ToInt64())
+	should.Equal(uint(1), any.ToUint())
+	should.Equal(uint(0), any2.ToUint())
+	should.Equal(uint32(1), any.ToUint32())
+	should.Equal(uint32(0), any2.ToUint32())
+	should.Equal(uint64(1), any.ToUint64())
+	should.Equal(uint64(0), any2.ToUint64())
+	should.Equal(float32(1), any.ToFloat32())
+	should.Equal(float32(0), any2.ToFloat32())
+	should.Equal(float64(1), any.ToFloat64())
+	should.Equal(float64(0), any2.ToFloat64())
+	should.Equal(3, any.Size())
+	should.Equal(0, any2.Size())
+
+	var i interface{} = []int{1, 2, 3}
+	should.Equal(i, any.GetInterface())
+}
+
+func Test_array_lazy_any_get(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("[1,[2,3],4]"))
+	should.Equal(3, any.Get(1, 1).ToInt())
+	should.Equal("[1,[2,3],4]", any.ToString())
+}
+
+func Test_array_lazy_any_get_all(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("[[1],[2],[3,4]]"))
+	should.Equal("[1,2,3]", any.Get('*', 0).ToString())
+	any = jsoniter.Get([]byte("[[[1],[2],[3,4]]]"), 0, '*', 0)
+	should.Equal("[1,2,3]", any.ToString())
+}
+
+func Test_array_wrapper_any_get_all(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Wrap([][]int{
+		{1, 2},
+		{3, 4},
+		{5, 6},
+	})
+	should.Equal("[1,3,5]", any.Get('*', 0).ToString())
+	should.Equal(jsoniter.ArrayValue, any.ValueType())
+	should.True(any.ToBool())
+	should.Equal(1, any.Get(0, 0).ToInt())
+}
+
+func Test_array_lazy_any_get_invalid(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("[]"))
+	should.Equal(jsoniter.InvalidValue, any.Get(1, 1).ValueType())
+	should.NotNil(any.Get(1, 1).LastError())
+	should.Equal(jsoniter.InvalidValue, any.Get("1").ValueType())
+	should.NotNil(any.Get("1").LastError())
+}
+
+func Test_invalid_array(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("["), 0)
+	should.Equal(jsoniter.InvalidValue, any.ValueType())
+}

any_tests/jsoniter_any_bool_test.go

@@ -0,0 +1,65 @@
+package any_tests
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+var boolConvertMap = map[string]bool{
+	"null":  false,
+	"true":  true,
+	"false": false,
+
+	`"true"`:  true,
+	`"false"`: true,
+
+	"123":   true,
+	`"123"`: true,
+	"0":     false,
+	`"0"`:   false,
+	"-1":    true,
+	`"-1"`:  true,
+
+	"1.1":       true,
+	"0.0":       false,
+	"-1.1":      true,
+	`""`:        false,
+	"[1,2]":     true,
+	"[]":        false,
+	"{}":        true,
+	`{"abc":1}`: true,
+}
+
+func Test_read_bool_as_any(t *testing.T) {
+	should := require.New(t)
+
+	var any jsoniter.Any
+	for k, v := range boolConvertMap {
+		any = jsoniter.Get([]byte(k))
+		if v {
+			should.True(any.ToBool(), fmt.Sprintf("origin val is %v", k))
+		} else {
+			should.False(any.ToBool(), fmt.Sprintf("origin val is %v", k))
+		}
+	}
+
+}
+
+func Test_write_bool_to_stream(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("true"))
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("true", string(stream.Buffer()))
+	should.Equal(any.ValueType(), jsoniter.BoolValue)
+
+	any = jsoniter.Get([]byte("false"))
+	stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("false", string(stream.Buffer()))
+
+	should.Equal(any.ValueType(), jsoniter.BoolValue)
+}

any_tests/jsoniter_any_float_test.go

@@ -0,0 +1,101 @@
+package any_tests
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+var floatConvertMap = map[string]float64{
+	"null":  0,
+	"true":  1,
+	"false": 0,
+
+	`"true"`:  0,
+	`"false"`: 0,
+
+	"1e1":  10,
+	"1e+1": 10,
+	"1e-1": .1,
+	"1E1":  10,
+	"1E+1": 10,
+	"1E-1": .1,
+
+	"-1e1":  -10,
+	"-1e+1": -10,
+	"-1e-1": -.1,
+	"-1E1":  -10,
+	"-1E+1": -10,
+	"-1E-1": -.1,
+
+	`"1e1"`:  10,
+	`"1e+1"`: 10,
+	`"1e-1"`: .1,
+	`"1E1"`:  10,
+	`"1E+1"`: 10,
+	`"1E-1"`: .1,
+
+	`"-1e1"`:  -10,
+	`"-1e+1"`: -10,
+	`"-1e-1"`: -.1,
+	`"-1E1"`:  -10,
+	`"-1E+1"`: -10,
+	`"-1E-1"`: -.1,
+
+	"123":       123,
+	`"123true"`: 123,
+	`"+"`:       0,
+	`"-"`:       0,
+
+	`"-123true"`:  -123,
+	`"-99.9true"`: -99.9,
+	"0":           0,
+	`"0"`:         0,
+	"-1":          -1,
+
+	"1.1":       1.1,
+	"0.0":       0,
+	"-1.1":      -1.1,
+	`"+1.1"`:    1.1,
+	`""`:        0,
+	"[1,2]":     1,
+	"[]":        0,
+	"{}":        0,
+	`{"abc":1}`: 0,
+}
+
+func Test_read_any_to_float(t *testing.T) {
+	should := require.New(t)
+	for k, v := range floatConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(float64(v), any.ToFloat64(), "the original val is "+k)
+	}
+
+	for k, v := range floatConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(float32(v), any.ToFloat32(), "the original val is "+k)
+	}
+}
+
+func Test_read_float_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.WrapFloat64(12.3)
+	anyFloat64 := float64(12.3)
+	any2 := jsoniter.WrapFloat64(-1.1)
+	should.Equal(float64(12.3), any.ToFloat64())
+	should.True(any.ToBool())
+	should.Equal(float32(anyFloat64), any.ToFloat32())
+	should.Equal(int(anyFloat64), any.ToInt())
+	should.Equal(int32(anyFloat64), any.ToInt32())
+	should.Equal(int64(anyFloat64), any.ToInt64())
+	should.Equal(uint(anyFloat64), any.ToUint())
+	should.Equal(uint32(anyFloat64), any.ToUint32())
+	should.Equal(uint64(anyFloat64), any.ToUint64())
+	should.Equal(uint(0), any2.ToUint())
+	should.Equal(uint32(0), any2.ToUint32())
+	should.Equal(uint64(0), any2.ToUint64())
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+
+	should.Equal("1.23E+01", any.ToString())
+}

any_tests/jsoniter_any_int_test.go

@@ -0,0 +1,198 @@
+package any_tests
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+var intConvertMap = map[string]int{
+	"null":       0,
+	"321.1":      321,
+	"-321.1":     -321,
+	`"1.1"`:      1,
+	`"-321.1"`:   -321,
+	"0.0":        0,
+	"0":          0,
+	`"0"`:        0,
+	`"0.0"`:      0,
+	"-1.1":       -1,
+	"true":       1,
+	"false":      0,
+	`"true"`:     0,
+	`"false"`:    0,
+	`"true123"`:  0,
+	`"123true"`:  123,
+	`"-123true"`: -123,
+	`"1.2332e6"`: 1,
+	`""`:         0,
+	"+":          0,
+	"-":          0,
+	"[]":         0,
+	"[1,2]":      1,
+	`["1","2"]`:  1,
+	// object in php cannot convert to int
+	"{}": 0,
+}
+
+func Test_read_any_to_int(t *testing.T) {
+	should := require.New(t)
+
+	// int
+	for k, v := range intConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(v, any.ToInt(), fmt.Sprintf("origin val %v", k))
+	}
+
+	// int32
+	for k, v := range intConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(int32(v), any.ToInt32(), fmt.Sprintf("original val is %v", k))
+	}
+
+	// int64
+	for k, v := range intConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(int64(v), any.ToInt64(), fmt.Sprintf("original val is %v", k))
+	}
+
+}
+
+var uintConvertMap = map[string]int{
+	"null":       0,
+	"321.1":      321,
+	`"1.1"`:      1,
+	`"-123.1"`:   0,
+	"0.0":        0,
+	"0":          0,
+	`"0"`:        0,
+	`"0.0"`:      0,
+	`"00.0"`:     0,
+	"true":       1,
+	"false":      0,
+	`"true"`:     0,
+	`"false"`:    0,
+	`"true123"`:  0,
+	`"+1"`:       1,
+	`"123true"`:  123,
+	`"-123true"`: 0,
+	`"1.2332e6"`: 1,
+	`""`:         0,
+	"+":          0,
+	"-":          0,
+	".":          0,
+	"[]":         0,
+	"[1,2]":      1,
+	"{}":         0,
+	"{1,2}":      0,
+	"-1.1":       0,
+	"-321.1":     0,
+}
+
+func Test_read_any_to_uint(t *testing.T) {
+	should := require.New(t)
+
+	for k, v := range uintConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(uint64(v), any.ToUint64(), fmt.Sprintf("origin val %v", k))
+	}
+
+	for k, v := range uintConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(uint32(v), any.ToUint32(), fmt.Sprintf("origin val %v", k))
+	}
+
+	for k, v := range uintConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(uint(v), any.ToUint(), fmt.Sprintf("origin val %v", k))
+	}
+
+}
+
+func Test_read_int64_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.WrapInt64(12345)
+	should.Equal(12345, any.ToInt())
+	should.Equal(int32(12345), any.ToInt32())
+	should.Equal(int64(12345), any.ToInt64())
+	should.Equal(uint(12345), any.ToUint())
+	should.Equal(uint32(12345), any.ToUint32())
+	should.Equal(uint64(12345), any.ToUint64())
+	should.Equal(float32(12345), any.ToFloat32())
+	should.Equal(float64(12345), any.ToFloat64())
+	should.Equal("12345", any.ToString())
+	should.Equal(true, any.ToBool())
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("12345", string(stream.Buffer()))
+}
+func Test_read_int32_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.WrapInt32(12345)
+	should.Equal(12345, any.ToInt())
+	should.Equal(int32(12345), any.ToInt32())
+	should.Equal(int64(12345), any.ToInt64())
+	should.Equal(uint(12345), any.ToUint())
+	should.Equal(uint32(12345), any.ToUint32())
+	should.Equal(uint64(12345), any.ToUint64())
+	should.Equal(float32(12345), any.ToFloat32())
+	should.Equal(float64(12345), any.ToFloat64())
+	should.Equal("12345", any.ToString())
+	should.Equal(true, any.ToBool())
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("12345", string(stream.Buffer()))
+}
+
+func Test_read_uint32_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.WrapUint32(12345)
+	should.Equal(12345, any.ToInt())
+	should.Equal(int32(12345), any.ToInt32())
+	should.Equal(int64(12345), any.ToInt64())
+	should.Equal(uint(12345), any.ToUint())
+	should.Equal(uint32(12345), any.ToUint32())
+	should.Equal(uint64(12345), any.ToUint64())
+	should.Equal(float32(12345), any.ToFloat32())
+	should.Equal(float64(12345), any.ToFloat64())
+	should.Equal("12345", any.ToString())
+	should.Equal(true, any.ToBool())
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("12345", string(stream.Buffer()))
+}
+
+func Test_read_uint64_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.WrapUint64(12345)
+	should.Equal(12345, any.ToInt())
+	should.Equal(int32(12345), any.ToInt32())
+	should.Equal(int64(12345), any.ToInt64())
+	should.Equal(uint(12345), any.ToUint())
+	should.Equal(uint32(12345), any.ToUint32())
+	should.Equal(uint64(12345), any.ToUint64())
+	should.Equal(float32(12345), any.ToFloat32())
+	should.Equal(float64(12345), any.ToFloat64())
+	should.Equal("12345", any.ToString())
+	should.Equal(true, any.ToBool())
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("12345", string(stream.Buffer()))
+	stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	stream.WriteUint(uint(123))
+	should.Equal("123", string(stream.Buffer()))
+}
+
+func Test_int_lazy_any_get(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("1234"))
+	// panic!!
+	//should.Equal(any.LastError(), io.EOF)
+	should.Equal(jsoniter.InvalidValue, any.Get(1, "2").ValueType())
+}

any_tests/jsoniter_any_map_test.go

@@ -0,0 +1,28 @@
+package any_tests
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_wrap_map(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Wrap(map[string]string{"Field1": "hello"})
+	should.Equal("hello", any.Get("Field1").ToString())
+	any = jsoniter.Wrap(map[string]string{"Field1": "hello"})
+	should.Equal(1, any.Size())
+}
+
+func Test_map_wrapper_any_get_all(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Wrap(map[string][]int{"Field1": {1, 2}})
+	should.Equal(`{"Field1":1}`, any.Get('*', 0).ToString())
+	should.Contains(any.Keys(), "Field1")
+
+	// map write to
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 0)
+	any.WriteTo(stream)
+	// TODO cannot pass
+	//should.Equal(string(stream.buf), "")
+}

any_tests/jsoniter_any_null_test.go

@@ -0,0 +1,16 @@
+package any_tests
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_read_null_as_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte(`null`))
+	should.Equal(0, any.ToInt())
+	should.Equal(float64(0), any.ToFloat64())
+	should.Equal("", any.ToString())
+	should.False(any.ToBool())
+}

any_tests/jsoniter_any_object_test.go

@@ -0,0 +1,121 @@
+package any_tests
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_read_object_as_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte(`{"a":"stream","c":"d"}`))
+	should.Equal(`{"a":"stream","c":"d"}`, any.ToString())
+	// partial parse
+	should.Equal("stream", any.Get("a").ToString())
+	should.Equal("d", any.Get("c").ToString())
+	should.Equal(2, len(any.Keys()))
+	any = jsoniter.Get([]byte(`{"a":"stream","c":"d"}`))
+	// full parse
+	should.Equal(2, len(any.Keys()))
+	should.Equal(2, any.Size())
+	should.True(any.ToBool())
+	should.Equal(0, any.ToInt())
+	should.Equal(jsoniter.ObjectValue, any.ValueType())
+	should.Nil(any.LastError())
+	obj := struct {
+		A string
+	}{}
+	any.ToVal(&obj)
+	should.Equal("stream", obj.A)
+}
+
+func Test_object_lazy_any_get(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte(`{"a":{"stream":{"c":"d"}}}`))
+	should.Equal("d", any.Get("a", "stream", "c").ToString())
+}
+
+func Test_object_lazy_any_get_all(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte(`{"a":[0],"stream":[1]}`))
+	should.Contains(any.Get('*', 0).ToString(), `"a":0`)
+}
+
+func Test_object_lazy_any_get_invalid(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte(`{}`))
+	should.Equal(jsoniter.InvalidValue, any.Get("a", "stream", "c").ValueType())
+	should.Equal(jsoniter.InvalidValue, any.Get(1).ValueType())
+}
+
+func Test_wrap_map_and_convert_to_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Wrap(map[string]interface{}{"a": 1})
+	should.True(any.ToBool())
+	should.Equal(0, any.ToInt())
+	should.Equal(int32(0), any.ToInt32())
+	should.Equal(int64(0), any.ToInt64())
+	should.Equal(float32(0), any.ToFloat32())
+	should.Equal(float64(0), any.ToFloat64())
+	should.Equal(uint(0), any.ToUint())
+	should.Equal(uint32(0), any.ToUint32())
+	should.Equal(uint64(0), any.ToUint64())
+}
+
+func Test_wrap_object_and_convert_to_any(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 string
+		field2 string
+	}
+	any := jsoniter.Wrap(TestObject{"hello", "world"})
+	should.Equal("hello", any.Get("Field1").ToString())
+	any = jsoniter.Wrap(TestObject{"hello", "world"})
+	should.Equal(2, any.Size())
+	should.Equal(`{"Field1":"hello"}`, any.Get('*').ToString())
+
+	should.Equal(0, any.ToInt())
+	should.Equal(int32(0), any.ToInt32())
+	should.Equal(int64(0), any.ToInt64())
+	should.Equal(float32(0), any.ToFloat32())
+	should.Equal(float64(0), any.ToFloat64())
+	should.Equal(uint(0), any.ToUint())
+	should.Equal(uint32(0), any.ToUint32())
+	should.Equal(uint64(0), any.ToUint64())
+	should.True(any.ToBool())
+	should.Equal(`{"Field1":"hello"}`, any.ToString())
+
+	// cannot pass!
+	//stream := NewStream(ConfigDefault, nil, 32)
+	//any.WriteTo(stream)
+	//should.Equal(`{"Field1":"hello"}`, string(stream.Buffer()))
+	// cannot pass!
+
+}
+
+func Test_any_within_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 jsoniter.Any
+		Field2 jsoniter.Any
+	}
+	obj := TestObject{}
+	err := jsoniter.UnmarshalFromString(`{"Field1": "hello", "Field2": [1,2,3]}`, &obj)
+	should.Nil(err)
+	should.Equal("hello", obj.Field1.ToString())
+	should.Equal("[1,2,3]", obj.Field2.ToString())
+}
+
+func Test_object_wrapper_any_get_all(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 []int
+		Field2 []int
+	}
+	any := jsoniter.Wrap(TestObject{[]int{1, 2}, []int{3, 4}})
+	should.Contains(any.Get('*', 0).ToString(), `"Field2":3`)
+	should.Contains(any.Keys(), "Field1")
+	should.Contains(any.Keys(), "Field2")
+	should.NotContains(any.Keys(), "Field3")
+}

any_tests/jsoniter_any_string_test.go

@@ -0,0 +1,58 @@
+package any_tests
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+var stringConvertMap = map[string]string{
+	"null":                   "",
+	"321.1":                  "321.1",
+	`"1.1"`:                  "1.1",
+	`"-123.1"`:               "-123.1",
+	"0.0":                    "0.0",
+	"0":                      "0",
+	`"0"`:                    "0",
+	`"0.0"`:                  "0.0",
+	`"00.0"`:                 "00.0",
+	"true":                   "true",
+	"false":                  "false",
+	`"true"`:                 "true",
+	`"false"`:                "false",
+	`"true123"`:              "true123",
+	`"+1"`:                   "+1",
+	"[]":                     "[]",
+	"[1,2]":                  "[1,2]",
+	"{}":                     "{}",
+	`{"a":1, "stream":true}`: `{"a":1, "stream":true}`,
+}
+
+func Test_read_any_to_string(t *testing.T) {
+	should := require.New(t)
+	for k, v := range stringConvertMap {
+		any := jsoniter.Get([]byte(k))
+		should.Equal(v, any.ToString(), "original val "+k)
+	}
+}
+
+func Test_read_string_as_any(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte(`"hello"`))
+	should.Equal("hello", any.ToString())
+	should.True(any.ToBool())
+	any = jsoniter.Get([]byte(`" "`))
+	should.False(any.ToBool())
+	any = jsoniter.Get([]byte(`"false"`))
+	should.True(any.ToBool())
+	any = jsoniter.Get([]byte(`"123"`))
+	should.Equal(123, any.ToInt())
+}
+
+func Test_wrap_string(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("-32000")).MustBeValid()
+	should.Equal(-32000, any.ToInt())
+	should.NoError(any.LastError())
+}

any_tests/jsoniter_must_be_valid_test.go

@@ -0,0 +1,72 @@
+package any_tests
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+// if must be valid is useless, just drop this test
+func Test_must_be_valid(t *testing.T) {
+	should := require.New(t)
+	any := jsoniter.Get([]byte("123"))
+	should.Equal(any.MustBeValid().ToInt(), 123)
+
+	any = jsoniter.Wrap(int8(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(int16(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(int32(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(int64(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(uint(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(uint8(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(uint16(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(uint32(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(uint64(10))
+	should.Equal(any.MustBeValid().ToInt(), 10)
+
+	any = jsoniter.Wrap(float32(10))
+	should.Equal(any.MustBeValid().ToFloat64(), float64(10))
+
+	any = jsoniter.Wrap(float64(10))
+	should.Equal(any.MustBeValid().ToFloat64(), float64(10))
+
+	any = jsoniter.Wrap(true)
+	should.Equal(any.MustBeValid().ToFloat64(), float64(1))
+
+	any = jsoniter.Wrap(false)
+	should.Equal(any.MustBeValid().ToFloat64(), float64(0))
+
+	any = jsoniter.Wrap(nil)
+	should.Equal(any.MustBeValid().ToFloat64(), float64(0))
+
+	any = jsoniter.Wrap(struct{ age int }{age: 1})
+	should.Equal(any.MustBeValid().ToFloat64(), float64(0))
+
+	any = jsoniter.Wrap(map[string]interface{}{"abc": 1})
+	should.Equal(any.MustBeValid().ToFloat64(), float64(0))
+
+	any = jsoniter.Wrap("abc")
+	should.Equal(any.MustBeValid().ToFloat64(), float64(0))
+
+	any = jsoniter.Wrap([]int{})
+	should.Equal(any.MustBeValid().ToFloat64(), float64(0))
+
+	any = jsoniter.Wrap([]int{1, 2})
+	should.Equal(any.MustBeValid().ToFloat64(), float64(1))
+}

any_tests/jsoniter_wrap_test.go

@@ -0,0 +1,119 @@
+package any_tests
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_wrap_and_valuetype_everything(t *testing.T) {
+	should := require.New(t)
+	var i interface{}
+	any := jsoniter.Get([]byte("123"))
+	// default of number type is float64
+	i = float64(123)
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(int8(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	//  get interface is not int8 interface
+	// i = int8(10)
+	// should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(int16(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	//i = int16(10)
+	//should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(int32(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	i = int32(10)
+	should.Equal(i, any.GetInterface())
+	any = jsoniter.Wrap(int64(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	i = int64(10)
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(uint(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	// not equal
+	//i = uint(10)
+	//should.Equal(i, any.GetInterface())
+	any = jsoniter.Wrap(uint8(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	// not equal
+	// i = uint8(10)
+	// should.Equal(i, any.GetInterface())
+	any = jsoniter.Wrap(uint16(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	any = jsoniter.Wrap(uint32(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	i = uint32(10)
+	should.Equal(i, any.GetInterface())
+	any = jsoniter.Wrap(uint64(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	i = uint64(10)
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(float32(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	// not equal
+	//i = float32(10)
+	//should.Equal(i, any.GetInterface())
+	any = jsoniter.Wrap(float64(10))
+	should.Equal(any.ValueType(), jsoniter.NumberValue)
+	should.Equal(any.LastError(), nil)
+	i = float64(10)
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(true)
+	should.Equal(any.ValueType(), jsoniter.BoolValue)
+	should.Equal(any.LastError(), nil)
+	i = true
+	should.Equal(i, any.GetInterface())
+	any = jsoniter.Wrap(false)
+	should.Equal(any.ValueType(), jsoniter.BoolValue)
+	should.Equal(any.LastError(), nil)
+	i = false
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(nil)
+	should.Equal(any.ValueType(), jsoniter.NilValue)
+	should.Equal(any.LastError(), nil)
+	i = nil
+	should.Equal(i, any.GetInterface())
+
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, nil, 32)
+	any.WriteTo(stream)
+	should.Equal("null", string(stream.Buffer()))
+	should.Equal(any.LastError(), nil)
+
+	any = jsoniter.Wrap(struct{ age int }{age: 1})
+	should.Equal(any.ValueType(), jsoniter.ObjectValue)
+	should.Equal(any.LastError(), nil)
+	i = struct{ age int }{age: 1}
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap(map[string]interface{}{"abc": 1})
+	should.Equal(any.ValueType(), jsoniter.ObjectValue)
+	should.Equal(any.LastError(), nil)
+	i = map[string]interface{}{"abc": 1}
+	should.Equal(i, any.GetInterface())
+
+	any = jsoniter.Wrap("abc")
+	i = "abc"
+	should.Equal(i, any.GetInterface())
+	should.Equal(nil, any.LastError())
+
+}

any_uint32.go

@@ -0,0 +1,74 @@
+package jsoniter
+
+import (
+	"strconv"
+)
+
+type uint32Any struct {
+	baseAny
+	val uint32
+}
+
+func (any *uint32Any) LastError() error {
+	return nil
+}
+
+func (any *uint32Any) ValueType() ValueType {
+	return NumberValue
+}
+
+func (any *uint32Any) MustBeValid() Any {
+	return any
+}
+
+func (any *uint32Any) ToBool() bool {
+	return any.val != 0
+}
+
+func (any *uint32Any) ToInt() int {
+	return int(any.val)
+}
+
+func (any *uint32Any) ToInt32() int32 {
+	return int32(any.val)
+}
+
+func (any *uint32Any) ToInt64() int64 {
+	return int64(any.val)
+}
+
+func (any *uint32Any) ToUint() uint {
+	return uint(any.val)
+}
+
+func (any *uint32Any) ToUint32() uint32 {
+	return any.val
+}
+
+func (any *uint32Any) ToUint64() uint64 {
+	return uint64(any.val)
+}
+
+func (any *uint32Any) ToFloat32() float32 {
+	return float32(any.val)
+}
+
+func (any *uint32Any) ToFloat64() float64 {
+	return float64(any.val)
+}
+
+func (any *uint32Any) ToString() string {
+	return strconv.FormatInt(int64(any.val), 10)
+}
+
+func (any *uint32Any) WriteTo(stream *Stream) {
+	stream.WriteUint32(any.val)
+}
+
+func (any *uint32Any) Parse() *Iterator {
+	return nil
+}
+
+func (any *uint32Any) GetInterface() interface{} {
+	return any.val
+}

any_uint64.go

@@ -0,0 +1,74 @@
+package jsoniter
+
+import (
+	"strconv"
+)
+
+type uint64Any struct {
+	baseAny
+	val uint64
+}
+
+func (any *uint64Any) LastError() error {
+	return nil
+}
+
+func (any *uint64Any) ValueType() ValueType {
+	return NumberValue
+}
+
+func (any *uint64Any) MustBeValid() Any {
+	return any
+}
+
+func (any *uint64Any) ToBool() bool {
+	return any.val != 0
+}
+
+func (any *uint64Any) ToInt() int {
+	return int(any.val)
+}
+
+func (any *uint64Any) ToInt32() int32 {
+	return int32(any.val)
+}
+
+func (any *uint64Any) ToInt64() int64 {
+	return int64(any.val)
+}
+
+func (any *uint64Any) ToUint() uint {
+	return uint(any.val)
+}
+
+func (any *uint64Any) ToUint32() uint32 {
+	return uint32(any.val)
+}
+
+func (any *uint64Any) ToUint64() uint64 {
+	return any.val
+}
+
+func (any *uint64Any) ToFloat32() float32 {
+	return float32(any.val)
+}
+
+func (any *uint64Any) ToFloat64() float64 {
+	return float64(any.val)
+}
+
+func (any *uint64Any) ToString() string {
+	return strconv.FormatUint(any.val, 10)
+}
+
+func (any *uint64Any) WriteTo(stream *Stream) {
+	stream.WriteUint64(any.val)
+}
+
+func (any *uint64Any) Parse() *Iterator {
+	return nil
+}
+
+func (any *uint64Any) GetInterface() interface{} {
+	return any.val
+}

api_tests/config_test.go

@@ -0,0 +1,229 @@
+package test
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_use_number_for_unmarshal(t *testing.T) {
+	should := require.New(t)
+	api := jsoniter.Config{UseNumber: true}.Froze()
+	var obj interface{}
+	should.Nil(api.UnmarshalFromString("123", &obj))
+	should.Equal(json.Number("123"), obj)
+}
+
+func Test_customize_float_marshal(t *testing.T) {
+	should := require.New(t)
+	json := jsoniter.Config{MarshalFloatWith6Digits: true}.Froze()
+	str, err := json.MarshalToString(float32(1.23456789))
+	should.Nil(err)
+	should.Equal("1.234568", str)
+}
+
+func Test_customize_tag_key(t *testing.T) {
+
+	type TestObject struct {
+		Field string `orm:"field"`
+	}
+
+	should := require.New(t)
+	json := jsoniter.Config{TagKey: "orm"}.Froze()
+	str, err := json.MarshalToString(TestObject{"hello"})
+	should.Nil(err)
+	should.Equal(`{"field":"hello"}`, str)
+}
+
+func Test_read_large_number_as_interface(t *testing.T) {
+	should := require.New(t)
+	var val interface{}
+	err := jsoniter.Config{UseNumber: true}.Froze().UnmarshalFromString(`123456789123456789123456789`, &val)
+	should.Nil(err)
+	output, err := jsoniter.MarshalToString(val)
+	should.Nil(err)
+	should.Equal(`123456789123456789123456789`, output)
+}
+
+type caseSensitiveStruct struct {
+	A string `json:"a"`
+	B string `json:"b,omitempty"`
+	C *C     `json:"C,omitempty"`
+}
+
+type C struct {
+	D int64 `json:"D,omitempty"`
+	E *E    `json:"e,omitempty"`
+}
+
+type E struct {
+	F string `json:"F,omitempty"`
+}
+
+func Test_CaseSensitive(t *testing.T) {
+	should := require.New(t)
+
+	testCases := []struct {
+		input          string
+		expectedOutput string
+		caseSensitive  bool
+	}{
+		{
+			input:          `{"A":"foo","B":"bar"}`,
+			expectedOutput: `{"a":"foo","b":"bar"}`,
+			caseSensitive:  false,
+		},
+		{
+			input:          `{"a":"foo","b":"bar"}`,
+			expectedOutput: `{"a":"foo","b":"bar"}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"a":"foo","b":"bar","C":{"D":10}}`,
+			expectedOutput: `{"a":"foo","b":"bar","C":{"D":10}}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"a":"foo","B":"bar","c":{"d":10}}`,
+			expectedOutput: `{"a":"foo"}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"a":"foo","C":{"d":10}}`,
+			expectedOutput: `{"a":"foo","C":{}}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"a":"foo","C":{"D":10,"e":{"f":"baz"}}}`,
+			expectedOutput: `{"a":"foo","C":{"D":10,"e":{}}}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"a":"foo","C":{"D":10,"e":{"F":"baz"}}}`,
+			expectedOutput: `{"a":"foo","C":{"D":10,"e":{"F":"baz"}}}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"A":"foo","c":{"d":10,"E":{"f":"baz"}}}`,
+			expectedOutput: `{"a":"foo","C":{"D":10,"e":{"F":"baz"}}}`,
+			caseSensitive:  false,
+		},
+	}
+
+	for _, tc := range testCases {
+		val := caseSensitiveStruct{}
+		err := jsoniter.Config{CaseSensitive: tc.caseSensitive}.Froze().UnmarshalFromString(tc.input, &val)
+		should.Nil(err)
+
+		output, err := jsoniter.MarshalToString(val)
+		should.Nil(err)
+		should.Equal(tc.expectedOutput, output)
+	}
+}
+
+type structWithElevenFields struct {
+	A string `json:"A,omitempty"`
+	B string `json:"B,omitempty"`
+	C string `json:"C,omitempty"`
+	D string `json:"d,omitempty"`
+	E string `json:"e,omitempty"`
+	F string `json:"f,omitempty"`
+	G string `json:"g,omitempty"`
+	H string `json:"h,omitempty"`
+	I string `json:"i,omitempty"`
+	J string `json:"j,omitempty"`
+	K string `json:"k,omitempty"`
+}
+
+func Test_CaseSensitive_MoreThanTenFields(t *testing.T) {
+	should := require.New(t)
+
+	testCases := []struct {
+		input          string
+		expectedOutput string
+		caseSensitive  bool
+	}{
+		{
+			input:          `{"A":"1","B":"2","C":"3","d":"4","e":"5","f":"6","g":"7","h":"8","i":"9","j":"10","k":"11"}`,
+			expectedOutput: `{"A":"1","B":"2","C":"3","d":"4","e":"5","f":"6","g":"7","h":"8","i":"9","j":"10","k":"11"}`,
+			caseSensitive:  true,
+		},
+		{
+			input:          `{"a":"1","b":"2","c":"3","D":"4","E":"5","F":"6"}`,
+			expectedOutput: `{"A":"1","B":"2","C":"3","d":"4","e":"5","f":"6"}`,
+			caseSensitive:  false,
+		},
+		{
+			input:          `{"A":"1","b":"2","d":"4","E":"5"}`,
+			expectedOutput: `{"A":"1","d":"4"}`,
+			caseSensitive:  true,
+		},
+	}
+
+	for _, tc := range testCases {
+		val := structWithElevenFields{}
+		err := jsoniter.Config{CaseSensitive: tc.caseSensitive}.Froze().UnmarshalFromString(tc.input, &val)
+		should.Nil(err)
+
+		output, err := jsoniter.MarshalToString(val)
+		should.Nil(err)
+		should.Equal(tc.expectedOutput, output)
+	}
+}
+
+type onlyTaggedFieldStruct struct {
+	A      string `json:"a"`
+	B      string
+	FSimpl F `json:"f_simpl"`
+	ISimpl I
+	FPtr   *F `json:"f_ptr"`
+	IPtr   *I
+	F
+	*I
+}
+
+type F struct {
+	G string `json:"g"`
+	H string
+}
+
+type I struct {
+	J string `json:"j"`
+	K string
+}
+
+func Test_OnlyTaggedField(t *testing.T) {
+	should := require.New(t)
+
+	obj := onlyTaggedFieldStruct{
+		A:      "a",
+		B:      "b",
+		FSimpl: F{G: "g", H: "h"},
+		ISimpl: I{J: "j", K: "k"},
+		FPtr:   &F{G: "g", H: "h"},
+		IPtr:   &I{J: "j", K: "k"},
+		F:      F{G: "g", H: "h"},
+		I:      &I{J: "j", K: "k"},
+	}
+
+	output, err := jsoniter.Config{OnlyTaggedField: true}.Froze().Marshal(obj)
+	should.Nil(err)
+
+	m := make(map[string]interface{})
+	err = jsoniter.Unmarshal(output, &m)
+	should.Nil(err)
+
+	should.Equal(map[string]interface{}{
+		"a": "a",
+		"f_simpl": map[string]interface{}{
+			"g": "g",
+		},
+		"f_ptr": map[string]interface{}{
+			"g": "g",
+		},
+		"g": "g",
+		"j": "j",
+	}, m)
+}

api_tests/decoder_test.go

@@ -0,0 +1,64 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"io/ioutil"
+	"testing"
+)
+
+func Test_disallowUnknownFields(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct{}
+	var obj TestObject
+	decoder := jsoniter.NewDecoder(bytes.NewBufferString(`{"field1":100}`))
+	decoder.DisallowUnknownFields()
+	should.Error(decoder.Decode(&obj))
+}
+
+func Test_new_decoder(t *testing.T) {
+	should := require.New(t)
+	decoder1 := json.NewDecoder(bytes.NewBufferString(`[1][2]`))
+	decoder2 := jsoniter.NewDecoder(bytes.NewBufferString(`[1][2]`))
+	arr1 := []int{}
+	should.Nil(decoder1.Decode(&arr1))
+	should.Equal([]int{1}, arr1)
+	arr2 := []int{}
+	should.True(decoder1.More())
+	buffered, _ := ioutil.ReadAll(decoder1.Buffered())
+	should.Equal("[2]", string(buffered))
+	should.Nil(decoder2.Decode(&arr2))
+	should.Equal([]int{1}, arr2)
+	should.True(decoder2.More())
+	buffered, _ = ioutil.ReadAll(decoder2.Buffered())
+	should.Equal("[2]", string(buffered))
+
+	should.Nil(decoder1.Decode(&arr1))
+	should.Equal([]int{2}, arr1)
+	should.False(decoder1.More())
+	should.Nil(decoder2.Decode(&arr2))
+	should.Equal([]int{2}, arr2)
+	should.False(decoder2.More())
+}
+
+func Test_use_number(t *testing.T) {
+	should := require.New(t)
+	decoder1 := json.NewDecoder(bytes.NewBufferString(`123`))
+	decoder1.UseNumber()
+	decoder2 := jsoniter.NewDecoder(bytes.NewBufferString(`123`))
+	decoder2.UseNumber()
+	var obj1 interface{}
+	should.Nil(decoder1.Decode(&obj1))
+	should.Equal(json.Number("123"), obj1)
+	var obj2 interface{}
+	should.Nil(decoder2.Decode(&obj2))
+	should.Equal(json.Number("123"), obj2)
+}
+
+func Test_decoder_more(t *testing.T) {
+	should := require.New(t)
+	decoder := jsoniter.NewDecoder(bytes.NewBufferString("abcde"))
+	should.True(decoder.More())
+}

api_tests/encoder_18_test.go

@@ -0,0 +1,46 @@
+//+build go1.8
+
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"testing"
+	"unicode/utf8"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_new_encoder(t *testing.T) {
+	should := require.New(t)
+	buf1 := &bytes.Buffer{}
+	encoder1 := json.NewEncoder(buf1)
+	encoder1.SetEscapeHTML(false)
+	encoder1.Encode([]int{1})
+	should.Equal("[1]\n", buf1.String())
+	buf2 := &bytes.Buffer{}
+	encoder2 := jsoniter.NewEncoder(buf2)
+	encoder2.SetEscapeHTML(false)
+	encoder2.Encode([]int{1})
+	should.Equal("[1]\n", buf2.String())
+}
+
+func Test_string_encode_with_std_without_html_escape(t *testing.T) {
+	api := jsoniter.Config{EscapeHTML: false}.Froze()
+	should := require.New(t)
+	for i := 0; i < utf8.RuneSelf; i++ {
+		input := string([]byte{byte(i)})
+		buf := &bytes.Buffer{}
+		encoder := json.NewEncoder(buf)
+		encoder.SetEscapeHTML(false)
+		err := encoder.Encode(input)
+		should.Nil(err)
+		stdOutput := buf.String()
+		stdOutput = stdOutput[:len(stdOutput)-1]
+		jsoniterOutputBytes, err := api.Marshal(input)
+		should.Nil(err)
+		jsoniterOutput := string(jsoniterOutputBytes)
+		should.Equal(stdOutput, jsoniterOutput)
+	}
+}

api_tests/encoder_test.go

@@ -0,0 +1,20 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+// Standard Encoder has trailing newline.
+func TestEncoderHasTrailingNewline(t *testing.T) {
+	should := require.New(t)
+	var buf, stdbuf bytes.Buffer
+	enc := jsoniter.ConfigCompatibleWithStandardLibrary.NewEncoder(&buf)
+	enc.Encode(1)
+	stdenc := json.NewEncoder(&stdbuf)
+	stdenc.Encode(1)
+	should.Equal(stdbuf.Bytes(), buf.Bytes())
+}

api_tests/marshal_indent_test.go

@@ -0,0 +1,36 @@
+package test
+
+import (
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_marshal_indent(t *testing.T) {
+	should := require.New(t)
+	obj := struct {
+		F1 int
+		F2 []int
+	}{1, []int{2, 3, 4}}
+	output, err := json.MarshalIndent(obj, "", "  ")
+	should.Nil(err)
+	should.Equal("{\n  \"F1\": 1,\n  \"F2\": [\n    2,\n    3,\n    4\n  ]\n}", string(output))
+	output, err = jsoniter.MarshalIndent(obj, "", "  ")
+	should.Nil(err)
+	should.Equal("{\n  \"F1\": 1,\n  \"F2\": [\n    2,\n    3,\n    4\n  ]\n}", string(output))
+}
+
+func Test_marshal_indent_map(t *testing.T) {
+	should := require.New(t)
+	obj := map[int]int{1: 2}
+	output, err := json.MarshalIndent(obj, "", "  ")
+	should.Nil(err)
+	should.Equal("{\n  \"1\": 2\n}", string(output))
+	output, err = jsoniter.MarshalIndent(obj, "", "  ")
+	should.Nil(err)
+	should.Equal("{\n  \"1\": 2\n}", string(output))
+	output, err = jsoniter.ConfigCompatibleWithStandardLibrary.MarshalIndent(obj, "", "  ")
+	should.Nil(err)
+	should.Equal("{\n  \"1\": 2\n}", string(output))
+}

api_tests/marshal_json_escape_test.go

@@ -0,0 +1,47 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"testing"
+
+	jsoniter "github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+var marshalConfig = jsoniter.Config{
+	EscapeHTML:             false,
+	SortMapKeys:            true,
+	ValidateJsonRawMessage: true,
+}.Froze()
+
+type Container struct {
+	Bar interface{}
+}
+
+func (c *Container) MarshalJSON() ([]byte, error) {
+	return marshalConfig.Marshal(&c.Bar)
+}
+
+func TestEncodeEscape(t *testing.T) {
+	should := require.New(t)
+
+	container := &Container{
+		Bar: []string{"123<ab>", "ooo"},
+	}
+	out, err := marshalConfig.Marshal(container)
+	should.Nil(err)
+	bufout := string(out)
+
+	var stdbuf bytes.Buffer
+	stdenc := json.NewEncoder(&stdbuf)
+	stdenc.SetEscapeHTML(false)
+	err = stdenc.Encode(container)
+	should.Nil(err)
+	stdout := string(stdbuf.Bytes())
+	if stdout[len(stdout)-1:] == "\n" {
+		stdout = stdout[:len(stdout)-1]
+	}
+
+	should.Equal(stdout, bufout)
+}

api_tests/marshal_json_test.go

@@ -0,0 +1,36 @@
+package test
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"testing"
+	"github.com/stretchr/testify/require"
+)
+
+
+type Foo struct {
+	Bar interface{}
+}
+
+func (f Foo) MarshalJSON() ([]byte, error) {
+	var buf bytes.Buffer
+	err := json.NewEncoder(&buf).Encode(f.Bar)
+	return buf.Bytes(), err
+}
+
+
+// Standard Encoder has trailing newline.
+func TestEncodeMarshalJSON(t *testing.T) {
+
+	foo := Foo {
+		Bar: 123,
+	}
+	should := require.New(t)
+	var buf, stdbuf bytes.Buffer
+	enc := jsoniter.ConfigCompatibleWithStandardLibrary.NewEncoder(&buf)
+	enc.Encode(foo)
+	stdenc := json.NewEncoder(&stdbuf)
+	stdenc.Encode(foo)
+	should.Equal(stdbuf.Bytes(), buf.Bytes())
+}

benchmarks/encode_string_test.go

@@ -0,0 +1,25 @@
+package test
+
+import (
+	"bytes"
+	"github.com/json-iterator/go"
+	"testing"
+)
+
+func Benchmark_encode_string_with_SetEscapeHTML(b *testing.B) {
+	type V struct {
+		S string
+		B bool
+		I int
+	}
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		buf := &bytes.Buffer{}
+		enc := json.NewEncoder(buf)
+		enc.SetEscapeHTML(true)
+		if err := enc.Encode(V{S: "s", B: true, I: 233}); err != nil {
+			b.Fatal(err)
+		}
+	}
+}

benchmarks/jsoniter_large_file_test.go

@@ -0,0 +1,158 @@
+package test
+
+import (
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+//func Test_large_file(t *testing.T) {
+//	file, err := os.Open("/tmp/large-file.json")
+//	if err != nil {
+//		t.Fatal(err)
+//	}
+//	iter := Parse(file, 4096)
+//	count := 0
+//	for iter.ReadArray() {
+//		iter.Skip()
+//		count++
+//	}
+//	if count != 11351 {
+//		t.Fatal(count)
+//	}
+//}
+
+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 := jsoniter.Parse(jsoniter.ConfigDefault, file, 4096)
+		count := 0
+		iter.ReadArrayCB(func(iter *jsoniter.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)
+		}
+	}
+}
+
+func Benchmark_json_large_file(b *testing.B) {
+	b.ReportAllocs()
+	for n := 0; n < b.N; n++ {
+		file, _ := os.Open("/tmp/large-file.json")
+		bytes, _ := ioutil.ReadAll(file)
+		file.Close()
+		result := []struct{}{}
+		err := json.Unmarshal(bytes, &result)
+		if err != nil {
+			b.Error(err)
+		}
+	}
+}

benchmarks/stream_test.go

@@ -0,0 +1,128 @@
+package test
+
+import (
+	"bytes"
+	"strconv"
+	"testing"
+
+	jsoniter "github.com/json-iterator/go"
+)
+
+func Benchmark_stream_encode_big_object(b *testing.B) {
+	var buf bytes.Buffer
+	var stream = jsoniter.NewStream(jsoniter.ConfigDefault, &buf, 100)
+	for i := 0; i < b.N; i++ {
+		buf.Reset()
+		stream.Reset(&buf)
+		encodeObject(stream)
+		if stream.Error != nil {
+			b.Errorf("error: %+v", stream.Error)
+		}
+	}
+}
+
+func TestEncodeObject(t *testing.T) {
+	var stream = jsoniter.NewStream(jsoniter.ConfigDefault, nil, 100)
+	encodeObject(stream)
+	if stream.Error != nil {
+		t.Errorf("error encoding a test object: %+v", stream.Error)
+		return
+	}
+	var m = make(map[string]interface{})
+	if err := jsoniter.Unmarshal(stream.Buffer(), &m); err != nil {
+		t.Errorf("error unmarshaling a test object: %+v", err)
+		return
+	}
+}
+
+func encodeObject(stream *jsoniter.Stream) {
+	stream.WriteObjectStart()
+
+	stream.WriteObjectField("objectId")
+	stream.WriteUint64(8838243212)
+
+	stream.WriteMore()
+	stream.WriteObjectField("name")
+	stream.WriteString("Jane Doe")
+
+	stream.WriteMore()
+	stream.WriteObjectField("address")
+	stream.WriteObjectStart()
+	for i, field := range addressFields {
+		if i != 0 {
+			stream.WriteMore()
+		}
+		stream.WriteObjectField(field.key)
+		stream.WriteString(field.val)
+	}
+
+	stream.WriteMore()
+	stream.WriteObjectField("geo")
+	{
+		stream.WriteObjectStart()
+		stream.WriteObjectField("latitude")
+		stream.WriteFloat64(-154.550817)
+		stream.WriteMore()
+		stream.WriteObjectField("longitude")
+		stream.WriteFloat64(-84.176159)
+		stream.WriteObjectEnd()
+
+	}
+	stream.WriteObjectEnd()
+
+	stream.WriteMore()
+	stream.WriteObjectField("specialties")
+	stream.WriteArrayStart()
+	for i, s := range specialties {
+		if i != 0 {
+			stream.WriteMore()
+		}
+		stream.WriteString(s)
+	}
+	stream.WriteArrayEnd()
+
+	stream.WriteMore()
+	for i, text := range longText {
+		if i != 0 {
+			stream.WriteMore()
+		}
+		stream.WriteObjectField("longText" + strconv.Itoa(i))
+		stream.WriteString(text)
+	}
+
+	for i := 0; i < 25; i++ {
+		num := i * 18328
+		stream.WriteMore()
+		stream.WriteObjectField("integerField" + strconv.Itoa(i))
+		stream.WriteInt64(int64(num))
+	}
+
+	stream.WriteObjectEnd()
+}
+
+type field struct{ key, val string }
+
+var (
+	addressFields = []field{
+		{"address1", "123 Example St"},
+		{"address2", "Apartment 5D, Suite 3"},
+		{"city", "Miami"},
+		{"state", "FL"},
+		{"postalCode", "33133"},
+		{"country", "US"},
+	}
+	specialties = []string{
+		"Web Design",
+		"Go Programming",
+		"Tennis",
+		"Cycling",
+		"Mixed martial arts",
+	}
+	longText = []string{
+		`Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.`,
+		`Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?`,
+		`But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?`,
+		`At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.`,
+		`On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains.`,
+	}
+)

build.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+set -e
+set -x
+
+if [ ! -d /tmp/build-golang/src/github.com/json-iterator ]; then
+    mkdir -p /tmp/build-golang/src/github.com/json-iterator
+    ln -s $PWD /tmp/build-golang/src/github.com/json-iterator/go
+fi
+export GOPATH=/tmp/build-golang
+go get -u github.com/golang/dep/cmd/dep
+cd /tmp/build-golang/src/github.com/json-iterator/go
+exec $GOPATH/bin/dep ensure -update

config.go

@@ -0,0 +1,375 @@
+package jsoniter
+
+import (
+	"encoding/json"
+	"io"
+	"reflect"
+	"sync"
+	"unsafe"
+
+	"github.com/modern-go/concurrent"
+	"github.com/modern-go/reflect2"
+)
+
+// Config customize how the API should behave.
+// The API is created from Config by Froze.
+type Config struct {
+	IndentionStep                 int
+	MarshalFloatWith6Digits       bool
+	EscapeHTML                    bool
+	SortMapKeys                   bool
+	UseNumber                     bool
+	DisallowUnknownFields         bool
+	TagKey                        string
+	OnlyTaggedField               bool
+	ValidateJsonRawMessage        bool
+	ObjectFieldMustBeSimpleString bool
+	CaseSensitive                 bool
+}
+
+// API the public interface of this package.
+// Primary Marshal and Unmarshal.
+type API interface {
+	IteratorPool
+	StreamPool
+	MarshalToString(v interface{}) (string, error)
+	Marshal(v interface{}) ([]byte, error)
+	MarshalIndent(v interface{}, prefix, indent string) ([]byte, error)
+	UnmarshalFromString(str string, v interface{}) error
+	Unmarshal(data []byte, v interface{}) error
+	Get(data []byte, path ...interface{}) Any
+	NewEncoder(writer io.Writer) *Encoder
+	NewDecoder(reader io.Reader) *Decoder
+	Valid(data []byte) bool
+	RegisterExtension(extension Extension)
+	DecoderOf(typ reflect2.Type) ValDecoder
+	EncoderOf(typ reflect2.Type) ValEncoder
+}
+
+// ConfigDefault the default API
+var ConfigDefault = Config{
+	EscapeHTML: true,
+}.Froze()
+
+// ConfigCompatibleWithStandardLibrary tries to be 100% compatible with standard library behavior
+var ConfigCompatibleWithStandardLibrary = Config{
+	EscapeHTML:             true,
+	SortMapKeys:            true,
+	ValidateJsonRawMessage: true,
+}.Froze()
+
+// ConfigFastest marshals float with only 6 digits precision
+var ConfigFastest = Config{
+	EscapeHTML:                    false,
+	MarshalFloatWith6Digits:       true, // will lose precession
+	ObjectFieldMustBeSimpleString: true, // do not unescape object field
+}.Froze()
+
+type frozenConfig struct {
+	configBeforeFrozen            Config
+	sortMapKeys                   bool
+	indentionStep                 int
+	objectFieldMustBeSimpleString bool
+	onlyTaggedField               bool
+	disallowUnknownFields         bool
+	decoderCache                  *concurrent.Map
+	encoderCache                  *concurrent.Map
+	encoderExtension              Extension
+	decoderExtension              Extension
+	extraExtensions               []Extension
+	streamPool                    *sync.Pool
+	iteratorPool                  *sync.Pool
+	caseSensitive                 bool
+}
+
+func (cfg *frozenConfig) initCache() {
+	cfg.decoderCache = concurrent.NewMap()
+	cfg.encoderCache = concurrent.NewMap()
+}
+
+func (cfg *frozenConfig) addDecoderToCache(cacheKey uintptr, decoder ValDecoder) {
+	cfg.decoderCache.Store(cacheKey, decoder)
+}
+
+func (cfg *frozenConfig) addEncoderToCache(cacheKey uintptr, encoder ValEncoder) {
+	cfg.encoderCache.Store(cacheKey, encoder)
+}
+
+func (cfg *frozenConfig) getDecoderFromCache(cacheKey uintptr) ValDecoder {
+	decoder, found := cfg.decoderCache.Load(cacheKey)
+	if found {
+		return decoder.(ValDecoder)
+	}
+	return nil
+}
+
+func (cfg *frozenConfig) getEncoderFromCache(cacheKey uintptr) ValEncoder {
+	encoder, found := cfg.encoderCache.Load(cacheKey)
+	if found {
+		return encoder.(ValEncoder)
+	}
+	return nil
+}
+
+var cfgCache = concurrent.NewMap()
+
+func getFrozenConfigFromCache(cfg Config) *frozenConfig {
+	obj, found := cfgCache.Load(cfg)
+	if found {
+		return obj.(*frozenConfig)
+	}
+	return nil
+}
+
+func addFrozenConfigToCache(cfg Config, frozenConfig *frozenConfig) {
+	cfgCache.Store(cfg, frozenConfig)
+}
+
+// Froze forge API from config
+func (cfg Config) Froze() API {
+	api := &frozenConfig{
+		sortMapKeys:                   cfg.SortMapKeys,
+		indentionStep:                 cfg.IndentionStep,
+		objectFieldMustBeSimpleString: cfg.ObjectFieldMustBeSimpleString,
+		onlyTaggedField:               cfg.OnlyTaggedField,
+		disallowUnknownFields:         cfg.DisallowUnknownFields,
+		caseSensitive:                 cfg.CaseSensitive,
+	}
+	api.streamPool = &sync.Pool{
+		New: func() interface{} {
+			return NewStream(api, nil, 512)
+		},
+	}
+	api.iteratorPool = &sync.Pool{
+		New: func() interface{} {
+			return NewIterator(api)
+		},
+	}
+	api.initCache()
+	encoderExtension := EncoderExtension{}
+	decoderExtension := DecoderExtension{}
+	if cfg.MarshalFloatWith6Digits {
+		api.marshalFloatWith6Digits(encoderExtension)
+	}
+	if cfg.EscapeHTML {
+		api.escapeHTML(encoderExtension)
+	}
+	if cfg.UseNumber {
+		api.useNumber(decoderExtension)
+	}
+	if cfg.ValidateJsonRawMessage {
+		api.validateJsonRawMessage(encoderExtension)
+	}
+	api.encoderExtension = encoderExtension
+	api.decoderExtension = decoderExtension
+	api.configBeforeFrozen = cfg
+	return api
+}
+
+func (cfg Config) frozeWithCacheReuse(extraExtensions []Extension) *frozenConfig {
+	api := getFrozenConfigFromCache(cfg)
+	if api != nil {
+		return api
+	}
+	api = cfg.Froze().(*frozenConfig)
+	for _, extension := range extraExtensions {
+		api.RegisterExtension(extension)
+	}
+	addFrozenConfigToCache(cfg, api)
+	return api
+}
+
+func (cfg *frozenConfig) validateJsonRawMessage(extension EncoderExtension) {
+	encoder := &funcEncoder{func(ptr unsafe.Pointer, stream *Stream) {
+		rawMessage := *(*json.RawMessage)(ptr)
+		iter := cfg.BorrowIterator([]byte(rawMessage))
+		defer cfg.ReturnIterator(iter)
+		iter.Read()
+		if iter.Error != nil && iter.Error != io.EOF {
+			stream.WriteRaw("null")
+		} else {
+			stream.WriteRaw(string(rawMessage))
+		}
+	}, func(ptr unsafe.Pointer) bool {
+		return len(*((*json.RawMessage)(ptr))) == 0
+	}}
+	extension[reflect2.TypeOfPtr((*json.RawMessage)(nil)).Elem()] = encoder
+	extension[reflect2.TypeOfPtr((*RawMessage)(nil)).Elem()] = encoder
+}
+
+func (cfg *frozenConfig) useNumber(extension DecoderExtension) {
+	extension[reflect2.TypeOfPtr((*interface{})(nil)).Elem()] = &funcDecoder{func(ptr unsafe.Pointer, iter *Iterator) {
+		exitingValue := *((*interface{})(ptr))
+		if exitingValue != nil && reflect.TypeOf(exitingValue).Kind() == reflect.Ptr {
+			iter.ReadVal(exitingValue)
+			return
+		}
+		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.extraExtensions = append(cfg.extraExtensions, extension)
+	copied := cfg.configBeforeFrozen
+	cfg.configBeforeFrozen = copied
+}
+
+type lossyFloat32Encoder struct {
+}
+
+func (encoder *lossyFloat32Encoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteFloat32Lossy(*((*float32)(ptr)))
+}
+
+func (encoder *lossyFloat32Encoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*float32)(ptr)) == 0
+}
+
+type lossyFloat64Encoder struct {
+}
+
+func (encoder *lossyFloat64Encoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteFloat64Lossy(*((*float64)(ptr)))
+}
+
+func (encoder *lossyFloat64Encoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*float64)(ptr)) == 0
+}
+
+// EnableLossyFloatMarshalling keeps 10**(-6) precision
+// for float variables for better performance.
+func (cfg *frozenConfig) marshalFloatWith6Digits(extension EncoderExtension) {
+	// for better performance
+	extension[reflect2.TypeOfPtr((*float32)(nil)).Elem()] = &lossyFloat32Encoder{}
+	extension[reflect2.TypeOfPtr((*float64)(nil)).Elem()] = &lossyFloat64Encoder{}
+}
+
+type htmlEscapedStringEncoder struct {
+}
+
+func (encoder *htmlEscapedStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	str := *((*string)(ptr))
+	stream.WriteStringWithHTMLEscaped(str)
+}
+
+func (encoder *htmlEscapedStringEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*string)(ptr)) == ""
+}
+
+func (cfg *frozenConfig) escapeHTML(encoderExtension EncoderExtension) {
+	encoderExtension[reflect2.TypeOfPtr((*string)(nil)).Elem()] = &htmlEscapedStringEncoder{}
+}
+
+func (cfg *frozenConfig) cleanDecoders() {
+	typeDecoders = map[string]ValDecoder{}
+	fieldDecoders = map[string]ValDecoder{}
+	*cfg = *(cfg.configBeforeFrozen.Froze().(*frozenConfig))
+}
+
+func (cfg *frozenConfig) cleanEncoders() {
+	typeEncoders = map[string]ValEncoder{}
+	fieldEncoders = map[string]ValEncoder{}
+	*cfg = *(cfg.configBeforeFrozen.Froze().(*frozenConfig))
+}
+
+func (cfg *frozenConfig) MarshalToString(v interface{}) (string, error) {
+	stream := cfg.BorrowStream(nil)
+	defer cfg.ReturnStream(stream)
+	stream.WriteVal(v)
+	if stream.Error != nil {
+		return "", stream.Error
+	}
+	return string(stream.Buffer()), nil
+}
+
+func (cfg *frozenConfig) Marshal(v interface{}) ([]byte, error) {
+	stream := cfg.BorrowStream(nil)
+	defer cfg.ReturnStream(stream)
+	stream.WriteVal(v)
+	if stream.Error != nil {
+		return nil, stream.Error
+	}
+	result := stream.Buffer()
+	copied := make([]byte, len(result))
+	copy(copied, result)
+	return copied, nil
+}
+
+func (cfg *frozenConfig) MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
+	if prefix != "" {
+		panic("prefix is not supported")
+	}
+	for _, r := range indent {
+		if r != ' ' {
+			panic("indent can only be space")
+		}
+	}
+	newCfg := cfg.configBeforeFrozen
+	newCfg.IndentionStep = len(indent)
+	return newCfg.frozeWithCacheReuse(cfg.extraExtensions).Marshal(v)
+}
+
+func (cfg *frozenConfig) UnmarshalFromString(str string, v interface{}) error {
+	data := []byte(str)
+	iter := cfg.BorrowIterator(data)
+	defer cfg.ReturnIterator(iter)
+	iter.ReadVal(v)
+	c := iter.nextToken()
+	if c == 0 {
+		if iter.Error == io.EOF {
+			return nil
+		}
+		return iter.Error
+	}
+	iter.ReportError("Unmarshal", "there are bytes left after unmarshal")
+	return iter.Error
+}
+
+func (cfg *frozenConfig) Get(data []byte, path ...interface{}) Any {
+	iter := cfg.BorrowIterator(data)
+	defer cfg.ReturnIterator(iter)
+	return locatePath(iter, path)
+}
+
+func (cfg *frozenConfig) Unmarshal(data []byte, v interface{}) error {
+	iter := cfg.BorrowIterator(data)
+	defer cfg.ReturnIterator(iter)
+	iter.ReadVal(v)
+	c := iter.nextToken()
+	if c == 0 {
+		if iter.Error == io.EOF {
+			return nil
+		}
+		return iter.Error
+	}
+	iter.ReportError("Unmarshal", "there are bytes left after unmarshal")
+	return iter.Error
+}
+
+func (cfg *frozenConfig) NewEncoder(writer io.Writer) *Encoder {
+	stream := NewStream(cfg, writer, 512)
+	return &Encoder{stream}
+}
+
+func (cfg *frozenConfig) NewDecoder(reader io.Reader) *Decoder {
+	iter := Parse(cfg, reader, 512)
+	return &Decoder{iter}
+}
+
+func (cfg *frozenConfig) Valid(data []byte) bool {
+	iter := cfg.BorrowIterator(data)
+	defer cfg.ReturnIterator(iter)
+	iter.Skip()
+	return iter.Error == nil
+}

example_test.go

@@ -0,0 +1,121 @@
+package jsoniter
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+func ExampleMarshal() {
+	type ColorGroup struct {
+		ID     int
+		Name   string
+		Colors []string
+	}
+	group := ColorGroup{
+		ID:     1,
+		Name:   "Reds",
+		Colors: []string{"Crimson", "Red", "Ruby", "Maroon"},
+	}
+	b, err := Marshal(group)
+	if err != nil {
+		fmt.Println("error:", err)
+	}
+	os.Stdout.Write(b)
+	// Output:
+	// {"ID":1,"Name":"Reds","Colors":["Crimson","Red","Ruby","Maroon"]}
+}
+
+func ExampleUnmarshal() {
+	var jsonBlob = []byte(`[
+		{"Name": "Platypus", "Order": "Monotremata"},
+		{"Name": "Quoll",    "Order": "Dasyuromorphia"}
+	]`)
+	type Animal struct {
+		Name  string
+		Order string
+	}
+	var animals []Animal
+	err := Unmarshal(jsonBlob, &animals)
+	if err != nil {
+		fmt.Println("error:", err)
+	}
+	fmt.Printf("%+v", animals)
+	// Output:
+	// [{Name:Platypus Order:Monotremata} {Name:Quoll Order:Dasyuromorphia}]
+}
+
+func ExampleConfigFastest_Marshal() {
+	type ColorGroup struct {
+		ID     int
+		Name   string
+		Colors []string
+	}
+	group := ColorGroup{
+		ID:     1,
+		Name:   "Reds",
+		Colors: []string{"Crimson", "Red", "Ruby", "Maroon"},
+	}
+	stream := ConfigFastest.BorrowStream(nil)
+	defer ConfigFastest.ReturnStream(stream)
+	stream.WriteVal(group)
+	if stream.Error != nil {
+		fmt.Println("error:", stream.Error)
+	}
+	os.Stdout.Write(stream.Buffer())
+	// Output:
+	// {"ID":1,"Name":"Reds","Colors":["Crimson","Red","Ruby","Maroon"]}
+}
+
+func ExampleConfigFastest_Unmarshal() {
+	var jsonBlob = []byte(`[
+		{"Name": "Platypus", "Order": "Monotremata"},
+		{"Name": "Quoll",    "Order": "Dasyuromorphia"}
+	]`)
+	type Animal struct {
+		Name  string
+		Order string
+	}
+	var animals []Animal
+	iter := ConfigFastest.BorrowIterator(jsonBlob)
+	defer ConfigFastest.ReturnIterator(iter)
+	iter.ReadVal(&animals)
+	if iter.Error != nil {
+		fmt.Println("error:", iter.Error)
+	}
+	fmt.Printf("%+v", animals)
+	// Output:
+	// [{Name:Platypus Order:Monotremata} {Name:Quoll Order:Dasyuromorphia}]
+}
+
+func ExampleGet() {
+	val := []byte(`{"ID":1,"Name":"Reds","Colors":["Crimson","Red","Ruby","Maroon"]}`)
+	fmt.Printf(Get(val, "Colors", 0).ToString())
+	// Output:
+	// Crimson
+}
+
+func ExampleMyKey() {
+	hello := MyKey("hello")
+	output, _ := Marshal(map[*MyKey]string{&hello: "world"})
+	fmt.Println(string(output))
+	obj := map[*MyKey]string{}
+	Unmarshal(output, &obj)
+	for k, v := range obj {
+		fmt.Println(*k, v)
+	}
+	// Output:
+	// {"Hello":"world"}
+	// Hel world
+}
+
+type MyKey string
+
+func (m *MyKey) MarshalText() ([]byte, error) {
+	return []byte(strings.Replace(string(*m), "h", "H", -1)), nil
+}
+
+func (m *MyKey) UnmarshalText(text []byte) error {
+	*m = MyKey(text[:3])
+	return nil
+}

extension_tests/decoder_test.go

@@ -0,0 +1,223 @@
+package test
+
+import (
+	"bytes"
+	"fmt"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"strconv"
+	"testing"
+	"time"
+	"unsafe"
+)
+
+func Test_customize_type_decoder(t *testing.T) {
+	t.Skip()
+	jsoniter.RegisterTypeDecoderFunc("time.Time", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		t, err := time.ParseInLocation("2006-01-02 15:04:05", iter.ReadString(), time.UTC)
+		if err != nil {
+			iter.Error = err
+			return
+		}
+		*((*time.Time)(ptr)) = t
+	})
+	//defer jsoniter.ConfigDefault.(*frozenConfig).cleanDecoders()
+	val := time.Time{}
+	err := jsoniter.Unmarshal([]byte(`"2016-12-05 08:43:28"`), &val)
+	if err != nil {
+		t.Fatal(err)
+	}
+	year, month, day := val.Date()
+	if year != 2016 || month != 12 || day != 5 {
+		t.Fatal(val)
+	}
+}
+
+func Test_customize_byte_array_encoder(t *testing.T) {
+	t.Skip()
+	//jsoniter.ConfigDefault.(*frozenConfig).cleanEncoders()
+	should := require.New(t)
+	jsoniter.RegisterTypeEncoderFunc("[]uint8", func(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+		t := *((*[]byte)(ptr))
+		stream.WriteString(string(t))
+	}, nil)
+	//defer jsoniter.ConfigDefault.(*frozenConfig).cleanEncoders()
+	val := []byte("abc")
+	str, err := jsoniter.MarshalToString(val)
+	should.Nil(err)
+	should.Equal(`"abc"`, str)
+}
+
+type CustomEncoderAttachmentTestStruct struct {
+	Value int32 `json:"value"`
+}
+
+type CustomEncoderAttachmentTestStructEncoder struct {}
+
+func (c *CustomEncoderAttachmentTestStructEncoder) Encode(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+	attachVal, ok := stream.Attachment.(int)
+	stream.WriteRaw(`"`)
+	stream.WriteRaw(fmt.Sprintf("%t %d", ok, attachVal))
+	stream.WriteRaw(`"`)
+}
+
+func (c *CustomEncoderAttachmentTestStructEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return false
+}
+
+func Test_custom_encoder_attachment(t *testing.T) {
+
+	jsoniter.RegisterTypeEncoder("test.CustomEncoderAttachmentTestStruct", &CustomEncoderAttachmentTestStructEncoder{})
+	expectedValue := 17
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.Config{SortMapKeys: true}.Froze(), buf, 4096)
+	stream.Attachment = expectedValue
+	val := map[string]CustomEncoderAttachmentTestStruct{"a": {}}
+	stream.WriteVal(val)
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("{\"a\":\"true 17\"}", buf.String())
+}
+
+func Test_customize_field_decoder(t *testing.T) {
+	type Tom struct {
+		field1 string
+	}
+	jsoniter.RegisterFieldDecoderFunc("jsoniter.Tom", "field1", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
+	})
+	//defer jsoniter.ConfigDefault.(*frozenConfig).cleanDecoders()
+	tom := Tom{}
+	err := jsoniter.Unmarshal([]byte(`{"field1": 100}`), &tom)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func Test_recursive_empty_interface_customization(t *testing.T) {
+	t.Skip()
+	var obj interface{}
+	jsoniter.RegisterTypeDecoderFunc("interface {}", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		switch iter.WhatIsNext() {
+		case jsoniter.NumberValue:
+			*(*interface{})(ptr) = iter.ReadInt64()
+		default:
+			*(*interface{})(ptr) = iter.Read()
+		}
+	})
+	should := require.New(t)
+	jsoniter.Unmarshal([]byte("[100]"), &obj)
+	should.Equal([]interface{}{int64(100)}, obj)
+}
+
+type MyInterface interface {
+	Hello() string
+}
+
+type MyString string
+
+func (ms MyString) Hello() string {
+	return string(ms)
+}
+
+func Test_read_custom_interface(t *testing.T) {
+	t.Skip()
+	should := require.New(t)
+	var val MyInterface
+	jsoniter.RegisterTypeDecoderFunc("jsoniter.MyInterface", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		*((*MyInterface)(ptr)) = MyString(iter.ReadString())
+	})
+	err := jsoniter.UnmarshalFromString(`"hello"`, &val)
+	should.Nil(err)
+	should.Equal("hello", val.Hello())
+}
+
+const flow1 = `
+{"A":"hello"}
+{"A":"hello"}
+{"A":"hello"}
+{"A":"hello"}
+{"A":"hello"}`
+
+const flow2 = `
+{"A":"hello"}
+{"A":"hello"}
+{"A":"hello"}
+{"A":"hello"}
+{"A":"hello"}
+`
+
+type (
+	Type1 struct {
+		A string
+	}
+
+	Type2 struct {
+		A string
+	}
+)
+
+func (t *Type2) UnmarshalJSON(data []byte) error {
+	return nil
+}
+
+func (t *Type2) MarshalJSON() ([]byte, error) {
+	return nil, nil
+}
+
+func TestType1NoFinalLF(t *testing.T) {
+	reader := bytes.NewReader([]byte(flow1))
+	dec := jsoniter.NewDecoder(reader)
+
+	i := 0
+	for dec.More() {
+		data := &Type1{}
+		if err := dec.Decode(data); err != nil {
+			t.Errorf("at %v got %v", i, err)
+		}
+		i++
+	}
+}
+
+func TestType1FinalLF(t *testing.T) {
+	reader := bytes.NewReader([]byte(flow2))
+	dec := jsoniter.NewDecoder(reader)
+
+	i := 0
+	for dec.More() {
+		data := &Type1{}
+		if err := dec.Decode(data); err != nil {
+			t.Errorf("at %v got %v", i, err)
+		}
+		i++
+	}
+}
+
+func TestType2NoFinalLF(t *testing.T) {
+	reader := bytes.NewReader([]byte(flow1))
+	dec := jsoniter.NewDecoder(reader)
+
+	i := 0
+	for dec.More() {
+		data := &Type2{}
+		if err := dec.Decode(data); err != nil {
+			t.Errorf("at %v got %v", i, err)
+		}
+		i++
+	}
+}
+
+func TestType2FinalLF(t *testing.T) {
+	reader := bytes.NewReader([]byte(flow2))
+	dec := jsoniter.NewDecoder(reader)
+
+	i := 0
+	for dec.More() {
+		data := &Type2{}
+		if err := dec.Decode(data); err != nil {
+			t.Errorf("at %v got %v", i, err)
+		}
+		i++
+	}
+}

extension_tests/extension_test.go

@@ -0,0 +1,120 @@
+package test
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/modern-go/reflect2"
+	"github.com/stretchr/testify/require"
+	"reflect"
+	"strconv"
+	"testing"
+	"unsafe"
+)
+
+type TestObject1 struct {
+	Field1 string
+}
+
+type testExtension struct {
+	jsoniter.DummyExtension
+}
+
+func (extension *testExtension) UpdateStructDescriptor(structDescriptor *jsoniter.StructDescriptor) {
+	if structDescriptor.Type.String() != "test.TestObject1" {
+		return
+	}
+	binding := structDescriptor.GetField("Field1")
+	binding.Encoder = &funcEncoder{fun: func(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+		str := *((*string)(ptr))
+		val, _ := strconv.Atoi(str)
+		stream.WriteInt(val)
+	}}
+	binding.Decoder = &funcDecoder{func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
+	}}
+	binding.ToNames = []string{"field-1"}
+	binding.FromNames = []string{"field-1"}
+}
+
+func Test_customize_field_by_extension(t *testing.T) {
+	should := require.New(t)
+	cfg := jsoniter.Config{}.Froze()
+	cfg.RegisterExtension(&testExtension{})
+	obj := TestObject1{}
+	err := cfg.UnmarshalFromString(`{"field-1": 100}`, &obj)
+	should.Nil(err)
+	should.Equal("100", obj.Field1)
+	str, err := cfg.MarshalToString(obj)
+	should.Nil(err)
+	should.Equal(`{"field-1":100}`, str)
+}
+
+func Test_customize_map_key_encoder(t *testing.T) {
+	should := require.New(t)
+	cfg := jsoniter.Config{}.Froze()
+	cfg.RegisterExtension(&testMapKeyExtension{})
+	m := map[int]int{1: 2}
+	output, err := cfg.MarshalToString(m)
+	should.NoError(err)
+	should.Equal(`{"2":2}`, output)
+	m = map[int]int{}
+	should.NoError(cfg.UnmarshalFromString(output, &m))
+	should.Equal(map[int]int{1: 2}, m)
+}
+
+type testMapKeyExtension struct {
+	jsoniter.DummyExtension
+}
+
+func (extension *testMapKeyExtension) CreateMapKeyEncoder(typ reflect2.Type) jsoniter.ValEncoder {
+	if typ.Kind() == reflect.Int {
+		return &funcEncoder{
+			fun: func(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+				stream.WriteRaw(`"`)
+				stream.WriteInt(*(*int)(ptr) + 1)
+				stream.WriteRaw(`"`)
+			},
+		}
+	}
+	return nil
+}
+
+func (extension *testMapKeyExtension) CreateMapKeyDecoder(typ reflect2.Type) jsoniter.ValDecoder {
+	if typ.Kind() == reflect.Int {
+		return &funcDecoder{
+			fun: func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+				i, err := strconv.Atoi(iter.ReadString())
+				if err != nil {
+					iter.ReportError("read map key", err.Error())
+					return
+				}
+				i--
+				*(*int)(ptr) = i
+			},
+		}
+	}
+	return nil
+}
+
+type funcDecoder struct {
+	fun jsoniter.DecoderFunc
+}
+
+func (decoder *funcDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	decoder.fun(ptr, iter)
+}
+
+type funcEncoder struct {
+	fun         jsoniter.EncoderFunc
+	isEmptyFunc func(ptr unsafe.Pointer) bool
+}
+
+func (encoder *funcEncoder) Encode(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+	encoder.fun(ptr, stream)
+}
+
+func (encoder *funcEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	if encoder.isEmptyFunc == nil {
+		return false
+	}
+	return encoder.isEmptyFunc(ptr)
+}

extra/binary_as_string_codec.go

@@ -0,0 +1,238 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/modern-go/reflect2"
+	"unicode/utf8"
+	"unsafe"
+)
+
+// safeSet holds the value true if the ASCII character with the given array
+// position can be represented inside a JSON string without any further
+// escaping.
+//
+// All values are true except for the ASCII control characters (0-31), the
+// double quote ("), and the backslash character ("\").
+var safeSet = [utf8.RuneSelf]bool{
+	' ':      true,
+	'!':      true,
+	'"':      false,
+	'#':      true,
+	'$':      true,
+	'%':      true,
+	'&':      true,
+	'\'':     true,
+	'(':      true,
+	')':      true,
+	'*':      true,
+	'+':      true,
+	',':      true,
+	'-':      true,
+	'.':      true,
+	'/':      true,
+	'0':      true,
+	'1':      true,
+	'2':      true,
+	'3':      true,
+	'4':      true,
+	'5':      true,
+	'6':      true,
+	'7':      true,
+	'8':      true,
+	'9':      true,
+	':':      true,
+	';':      true,
+	'<':      true,
+	'=':      true,
+	'>':      true,
+	'?':      true,
+	'@':      true,
+	'A':      true,
+	'B':      true,
+	'C':      true,
+	'D':      true,
+	'E':      true,
+	'F':      true,
+	'G':      true,
+	'H':      true,
+	'I':      true,
+	'J':      true,
+	'K':      true,
+	'L':      true,
+	'M':      true,
+	'N':      true,
+	'O':      true,
+	'P':      true,
+	'Q':      true,
+	'R':      true,
+	'S':      true,
+	'T':      true,
+	'U':      true,
+	'V':      true,
+	'W':      true,
+	'X':      true,
+	'Y':      true,
+	'Z':      true,
+	'[':      true,
+	'\\':     false,
+	']':      true,
+	'^':      true,
+	'_':      true,
+	'`':      true,
+	'a':      true,
+	'b':      true,
+	'c':      true,
+	'd':      true,
+	'e':      true,
+	'f':      true,
+	'g':      true,
+	'h':      true,
+	'i':      true,
+	'j':      true,
+	'k':      true,
+	'l':      true,
+	'm':      true,
+	'n':      true,
+	'o':      true,
+	'p':      true,
+	'q':      true,
+	'r':      true,
+	's':      true,
+	't':      true,
+	'u':      true,
+	'v':      true,
+	'w':      true,
+	'x':      true,
+	'y':      true,
+	'z':      true,
+	'{':      true,
+	'|':      true,
+	'}':      true,
+	'~':      true,
+	'\u007f': true,
+}
+
+var binaryType = reflect2.TypeOfPtr((*[]byte)(nil)).Elem()
+
+type BinaryAsStringExtension struct {
+	jsoniter.DummyExtension
+}
+
+func (extension *BinaryAsStringExtension) CreateEncoder(typ reflect2.Type) jsoniter.ValEncoder {
+	if typ == binaryType {
+		return &binaryAsStringCodec{}
+	}
+	return nil
+}
+
+func (extension *BinaryAsStringExtension) CreateDecoder(typ reflect2.Type) jsoniter.ValDecoder {
+	if typ == binaryType {
+		return &binaryAsStringCodec{}
+	}
+	return nil
+}
+
+type binaryAsStringCodec struct {
+}
+
+func (codec *binaryAsStringCodec) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	rawBytes := iter.ReadStringAsSlice()
+	bytes := make([]byte, 0, len(rawBytes))
+	for i := 0; i < len(rawBytes); i++ {
+		b := rawBytes[i]
+		if b == '\\' {
+			b2 := rawBytes[i+1]
+			if b2 != '\\' {
+				iter.ReportError("decode binary as string", `\\x is only supported escape`)
+				return
+			}
+			b3 := rawBytes[i+2]
+			if b3 != 'x' {
+				iter.ReportError("decode binary as string", `\\x is only supported escape`)
+				return
+			}
+			b4 := rawBytes[i+3]
+			b5 := rawBytes[i+4]
+			i += 4
+			b = readHex(iter, b4, b5)
+		}
+		bytes = append(bytes, b)
+	}
+	*(*[]byte)(ptr) = bytes
+}
+func (codec *binaryAsStringCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*[]byte)(ptr))) == 0
+}
+func (codec *binaryAsStringCodec) Encode(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+	newBuffer := writeBytes(stream.Buffer(), *(*[]byte)(ptr))
+	stream.SetBuffer(newBuffer)
+}
+
+func readHex(iter *jsoniter.Iterator, b1, b2 byte) byte {
+	var ret byte
+	if b1 >= '0' && b1 <= '9' {
+		ret = b1 - '0'
+	} else if b1 >= 'a' && b1 <= 'f' {
+		ret = b1 - 'a' + 10
+	} else {
+		iter.ReportError("read hex", "expects 0~9 or a~f, but found "+string([]byte{b1}))
+		return 0
+	}
+	ret *= 16
+	if b2 >= '0' && b2 <= '9' {
+		ret = b2 - '0'
+	} else if b2 >= 'a' && b2 <= 'f' {
+		ret = b2 - 'a' + 10
+	} else {
+		iter.ReportError("read hex", "expects 0~9 or a~f, but found "+string([]byte{b2}))
+		return 0
+	}
+	return ret
+}
+
+var hex = "0123456789abcdef"
+
+func writeBytes(space []byte, s []byte) []byte {
+	space = append(space, '"')
+	// write string, the fast path, without utf8 and escape support
+	var i int
+	var c byte
+	for i, c = range s {
+		if c < utf8.RuneSelf && safeSet[c] {
+			space = append(space, c)
+		} else {
+			break
+		}
+	}
+	if i == len(s)-1 {
+		space = append(space, '"')
+		return space
+	}
+	return writeBytesSlowPath(space, s[i:])
+}
+
+func writeBytesSlowPath(space []byte, s []byte) []byte {
+	start := 0
+	// for the remaining parts, we process them char by char
+	var i int
+	var b byte
+	for i, b = range s {
+		if b >= utf8.RuneSelf {
+			space = append(space, '\\', '\\', 'x', hex[b>>4], hex[b&0xF])
+			start = i + 1
+			continue
+		}
+		if safeSet[b] {
+			continue
+		}
+		if start < i {
+			space = append(space, s[start:i]...)
+		}
+		space = append(space, '\\', '\\', 'x', hex[b>>4], hex[b&0xF])
+		start = i + 1
+	}
+	if start < len(s) {
+		space = append(space, s[start:]...)
+	}
+	return append(space, '"')
+}

extra/binary_as_string_codec_test.go

@@ -0,0 +1,32 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func init() {
+	jsoniter.RegisterExtension(&BinaryAsStringExtension{})
+}
+
+func TestBinaryAsStringCodec(t *testing.T) {
+	t.Run("safe set", func(t *testing.T) {
+		should := require.New(t)
+		output, err := jsoniter.Marshal([]byte("hello"))
+		should.NoError(err)
+		should.Equal(`"hello"`, string(output))
+		var val []byte
+		should.NoError(jsoniter.Unmarshal(output, &val))
+		should.Equal(`hello`, string(val))
+	})
+	t.Run("non safe set", func(t *testing.T) {
+		should := require.New(t)
+		output, err := jsoniter.Marshal([]byte{1, 2, 3, 15})
+		should.NoError(err)
+		should.Equal(`"\\x01\\x02\\x03\\x0f"`, string(output))
+		var val []byte
+		should.NoError(jsoniter.Unmarshal(output, &val))
+		should.Equal([]byte{1, 2, 3, 15}, val)
+	})
+}

extra/fuzzy_decoder.go

@@ -0,0 +1,294 @@
+package extra
+
+import (
+	"encoding/json"
+	"io"
+	"math"
+	"reflect"
+	"strings"
+	"unsafe"
+
+	"github.com/json-iterator/go"
+	"github.com/modern-go/reflect2"
+)
+
+const maxUint = ^uint(0)
+const maxInt = int(maxUint >> 1)
+const minInt = -maxInt - 1
+
+// RegisterFuzzyDecoders decode input from PHP with tolerance.
+// It will handle string/number auto conversation, and treat empty [] as empty struct.
+func RegisterFuzzyDecoders() {
+	jsoniter.RegisterExtension(&tolerateEmptyArrayExtension{})
+	jsoniter.RegisterTypeDecoder("string", &fuzzyStringDecoder{})
+	jsoniter.RegisterTypeDecoder("float32", &fuzzyFloat32Decoder{})
+	jsoniter.RegisterTypeDecoder("float64", &fuzzyFloat64Decoder{})
+	jsoniter.RegisterTypeDecoder("int", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(maxInt) || val < float64(minInt) {
+				iter.ReportError("fuzzy decode int", "exceed range")
+				return
+			}
+			*((*int)(ptr)) = int(val)
+		} else {
+			*((*int)(ptr)) = iter.ReadInt()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("uint", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(maxUint) || val < 0 {
+				iter.ReportError("fuzzy decode uint", "exceed range")
+				return
+			}
+			*((*uint)(ptr)) = uint(val)
+		} else {
+			*((*uint)(ptr)) = iter.ReadUint()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("int8", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxInt8) || val < float64(math.MinInt8) {
+				iter.ReportError("fuzzy decode int8", "exceed range")
+				return
+			}
+			*((*int8)(ptr)) = int8(val)
+		} else {
+			*((*int8)(ptr)) = iter.ReadInt8()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("uint8", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxUint8) || val < 0 {
+				iter.ReportError("fuzzy decode uint8", "exceed range")
+				return
+			}
+			*((*uint8)(ptr)) = uint8(val)
+		} else {
+			*((*uint8)(ptr)) = iter.ReadUint8()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("int16", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxInt16) || val < float64(math.MinInt16) {
+				iter.ReportError("fuzzy decode int16", "exceed range")
+				return
+			}
+			*((*int16)(ptr)) = int16(val)
+		} else {
+			*((*int16)(ptr)) = iter.ReadInt16()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("uint16", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxUint16) || val < 0 {
+				iter.ReportError("fuzzy decode uint16", "exceed range")
+				return
+			}
+			*((*uint16)(ptr)) = uint16(val)
+		} else {
+			*((*uint16)(ptr)) = iter.ReadUint16()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("int32", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxInt32) || val < float64(math.MinInt32) {
+				iter.ReportError("fuzzy decode int32", "exceed range")
+				return
+			}
+			*((*int32)(ptr)) = int32(val)
+		} else {
+			*((*int32)(ptr)) = iter.ReadInt32()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("uint32", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxUint32) || val < 0 {
+				iter.ReportError("fuzzy decode uint32", "exceed range")
+				return
+			}
+			*((*uint32)(ptr)) = uint32(val)
+		} else {
+			*((*uint32)(ptr)) = iter.ReadUint32()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("int64", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxInt64) || val < float64(math.MinInt64) {
+				iter.ReportError("fuzzy decode int64", "exceed range")
+				return
+			}
+			*((*int64)(ptr)) = int64(val)
+		} else {
+			*((*int64)(ptr)) = iter.ReadInt64()
+		}
+	}})
+	jsoniter.RegisterTypeDecoder("uint64", &fuzzyIntegerDecoder{func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+		if isFloat {
+			val := iter.ReadFloat64()
+			if val > float64(math.MaxUint64) || val < 0 {
+				iter.ReportError("fuzzy decode uint64", "exceed range")
+				return
+			}
+			*((*uint64)(ptr)) = uint64(val)
+		} else {
+			*((*uint64)(ptr)) = iter.ReadUint64()
+		}
+	}})
+}
+
+type tolerateEmptyArrayExtension struct {
+	jsoniter.DummyExtension
+}
+
+func (extension *tolerateEmptyArrayExtension) DecorateDecoder(typ reflect2.Type, decoder jsoniter.ValDecoder) jsoniter.ValDecoder {
+	if typ.Kind() == reflect.Struct || typ.Kind() == reflect.Map {
+		return &tolerateEmptyArrayDecoder{decoder}
+	}
+	return decoder
+}
+
+type tolerateEmptyArrayDecoder struct {
+	valDecoder jsoniter.ValDecoder
+}
+
+func (decoder *tolerateEmptyArrayDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	if iter.WhatIsNext() == jsoniter.ArrayValue {
+		iter.Skip()
+		newIter := iter.Pool().BorrowIterator([]byte("{}"))
+		defer iter.Pool().ReturnIterator(newIter)
+		decoder.valDecoder.Decode(ptr, newIter)
+	} else {
+		decoder.valDecoder.Decode(ptr, iter)
+	}
+}
+
+type fuzzyStringDecoder struct {
+}
+
+func (decoder *fuzzyStringDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	valueType := iter.WhatIsNext()
+	switch valueType {
+	case jsoniter.NumberValue:
+		var number json.Number
+		iter.ReadVal(&number)
+		*((*string)(ptr)) = string(number)
+	case jsoniter.StringValue:
+		*((*string)(ptr)) = iter.ReadString()
+	case jsoniter.NilValue:
+		iter.Skip()
+		*((*string)(ptr)) = ""
+	default:
+		iter.ReportError("fuzzyStringDecoder", "not number or string")
+	}
+}
+
+type fuzzyIntegerDecoder struct {
+	fun func(isFloat bool, ptr unsafe.Pointer, iter *jsoniter.Iterator)
+}
+
+func (decoder *fuzzyIntegerDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	valueType := iter.WhatIsNext()
+	var str string
+	switch valueType {
+	case jsoniter.NumberValue:
+		var number json.Number
+		iter.ReadVal(&number)
+		str = string(number)
+	case jsoniter.StringValue:
+		str = iter.ReadString()
+	case jsoniter.BoolValue:
+		if iter.ReadBool() {
+			str = "1"
+		} else {
+			str = "0"
+		}
+	case jsoniter.NilValue:
+		iter.Skip()
+		str = "0"
+	default:
+		iter.ReportError("fuzzyIntegerDecoder", "not number or string")
+	}
+	if len(str) == 0 {
+		str = "0"
+	}
+	newIter := iter.Pool().BorrowIterator([]byte(str))
+	defer iter.Pool().ReturnIterator(newIter)
+	isFloat := strings.IndexByte(str, '.') != -1
+	decoder.fun(isFloat, ptr, newIter)
+	if newIter.Error != nil && newIter.Error != io.EOF {
+		iter.Error = newIter.Error
+	}
+}
+
+type fuzzyFloat32Decoder struct {
+}
+
+func (decoder *fuzzyFloat32Decoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	valueType := iter.WhatIsNext()
+	var str string
+	switch valueType {
+	case jsoniter.NumberValue:
+		*((*float32)(ptr)) = iter.ReadFloat32()
+	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 && 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
+		}
+	case jsoniter.NilValue:
+		iter.Skip()
+		*((*float32)(ptr)) = 0
+	default:
+		iter.ReportError("fuzzyFloat32Decoder", "not number or string")
+	}
+}
+
+type fuzzyFloat64Decoder struct {
+}
+
+func (decoder *fuzzyFloat64Decoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	valueType := iter.WhatIsNext()
+	var str string
+	switch valueType {
+	case jsoniter.NumberValue:
+		*((*float64)(ptr)) = iter.ReadFloat64()
+	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 && 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
+		}
+	case jsoniter.NilValue:
+		iter.Skip()
+		*((*float64)(ptr)) = 0
+	default:
+		iter.ReportError("fuzzyFloat64Decoder", "not number or string")
+	}
+}

extra/fuzzy_decoder_test.go

@@ -0,0 +1,393 @@
+package extra
+
+import (
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func init() {
+	RegisterFuzzyDecoders()
+}
+
+func Test_any_to_string(t *testing.T) {
+	should := require.New(t)
+	var val string
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal("100", val)
+	should.Nil(jsoniter.UnmarshalFromString("10", &val))
+	should.Equal("10", val)
+	should.Nil(jsoniter.UnmarshalFromString("10.1", &val))
+	should.Equal("10.1", val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal("10.1", val)
+	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
+	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
+}
+func Test_any_to_int64(t *testing.T) {
+	should := require.New(t)
+	var val int64
+
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(int64(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(int64(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	should.Equal(int64(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10`, &val))
+	should.Equal(int64(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`""`, &val))
+	should.Equal(int64(0), 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))
+	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
+	// large float to int
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_int(t *testing.T) {
+	should := require.New(t)
+	var val int
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(100, val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(10, val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_int16(t *testing.T) {
+	should := require.New(t)
+	var val int16
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(int16(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(int16(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_int32(t *testing.T) {
+	should := require.New(t)
+	var val int32
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(int32(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(int32(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_int8(t *testing.T) {
+	should := require.New(t)
+	var val int8
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(int8(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(int8(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_uint8(t *testing.T) {
+	should := require.New(t)
+	var val uint8
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(uint8(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(uint8(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_uint64(t *testing.T) {
+	should := require.New(t)
+	var val uint64
+
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(uint64(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(uint64(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	should.Equal(uint64(10), val)
+	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)
+	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
+	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
+	// large float to int
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+func Test_any_to_uint32(t *testing.T) {
+	should := require.New(t)
+	var val uint32
+
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(uint32(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(uint32(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	should.Equal(uint32(10), val)
+	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)
+	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
+	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
+	// large float to int
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+func Test_any_to_uint16(t *testing.T) {
+	should := require.New(t)
+	var val uint16
+
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(uint16(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(uint16(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	should.Equal(uint16(10), val)
+	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)
+	should.NotNil(jsoniter.UnmarshalFromString("{}", &val))
+	should.NotNil(jsoniter.UnmarshalFromString("[]", &val))
+	// large float to int
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+func Test_any_to_uint(t *testing.T) {
+	should := require.New(t)
+	var val uint
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(uint(100), val)
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(uint(10), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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
+	should.NotNil(jsoniter.UnmarshalFromString(`1234512345123451234512345.0`, &val))
+}
+
+func Test_any_to_float32(t *testing.T) {
+	should := require.New(t)
+	var val float32
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(float32(100), val)
+
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(float32(10.1), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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))
+}
+
+func Test_any_to_float64(t *testing.T) {
+	should := require.New(t)
+	var val float64
+
+	should.Nil(jsoniter.UnmarshalFromString(`"100"`, &val))
+	should.Equal(float64(100), val)
+
+	should.Nil(jsoniter.UnmarshalFromString(`"10.1"`, &val))
+	should.Equal(float64(10.1), val)
+	should.Nil(jsoniter.UnmarshalFromString(`10.1`, &val))
+	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))
+}
+
+func Test_empty_array_as_map(t *testing.T) {
+	should := require.New(t)
+	var val map[string]interface{}
+	should.Nil(jsoniter.UnmarshalFromString(`[]`, &val))
+	should.Equal(map[string]interface{}{}, val)
+}
+
+func Test_empty_array_as_object(t *testing.T) {
+	should := require.New(t)
+	var val struct{}
+	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)
+}
+
+func Test_null_to_string(t *testing.T) {
+	should := require.New(t)
+	body := []byte(`null`)
+	var message string
+	err := jsoniter.Unmarshal(body, &message)
+	should.NoError(err)
+}
+
+func Test_null_to_int(t *testing.T) {
+	should := require.New(t)
+	body := []byte(`null`)
+	var message int
+	err := jsoniter.Unmarshal(body, &message)
+	should.NoError(err)
+}
+
+func Test_null_to_float32(t *testing.T) {
+	should := require.New(t)
+	body := []byte(`null`)
+	var message float32
+	err := jsoniter.Unmarshal(body, &message)
+	should.NoError(err)
+}
+
+func Test_null_to_float64(t *testing.T) {
+	should := require.New(t)
+	body := []byte(`null`)
+	var message float64
+	err := jsoniter.Unmarshal(body, &message)
+	should.NoError(err)
+}

extra/naming_strategy.go

@@ -0,0 +1,55 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"strings"
+	"unicode"
+)
+
+// SetNamingStrategy rename struct fields uniformly
+func SetNamingStrategy(translate func(string) string) {
+	jsoniter.RegisterExtension(&namingStrategyExtension{jsoniter.DummyExtension{}, translate})
+}
+
+type namingStrategyExtension struct {
+	jsoniter.DummyExtension
+	translate func(string) string
+}
+
+func (extension *namingStrategyExtension) UpdateStructDescriptor(structDescriptor *jsoniter.StructDescriptor) {
+	for _, binding := range structDescriptor.Fields {
+		if unicode.IsLower(rune(binding.Field.Name()[0])) || binding.Field.Name()[0] == '_'{
+			continue
+		}
+		tag, hastag := binding.Field.Tag().Lookup("json")
+		if hastag {
+			tagParts := strings.Split(tag, ",")
+			if tagParts[0] == "-" {
+				continue // hidden field
+			}
+			if tagParts[0] != "" {
+				continue // field explicitly named
+			}
+		}
+		binding.ToNames = []string{extension.translate(binding.Field.Name())}
+		binding.FromNames = []string{extension.translate(binding.Field.Name())}
+	}
+}
+
+// LowerCaseWithUnderscores one strategy to SetNamingStrategy for. It will change HelloWorld to hello_world.
+func LowerCaseWithUnderscores(name string) string {
+	newName := []rune{}
+	for i, c := range name {
+		if i == 0 {
+			newName = append(newName, unicode.ToLower(c))
+		} else {
+			if unicode.IsUpper(c) {
+				newName = append(newName, '_')
+				newName = append(newName, unicode.ToLower(c))
+			} else {
+				newName = append(newName, c)
+			}
+		}
+	}
+	return string(newName)
+}

extra/naming_strategy_test.go

@@ -0,0 +1,66 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_lower_case_with_underscores(t *testing.T) {
+	should := require.New(t)
+	should.Equal("hello_world", LowerCaseWithUnderscores("helloWorld"))
+	should.Equal("hello_world", LowerCaseWithUnderscores("HelloWorld"))
+	SetNamingStrategy(LowerCaseWithUnderscores)
+	output, err := jsoniter.Marshal(struct {
+		UserName      string
+		FirstLanguage string
+	}{
+		UserName:      "taowen",
+		FirstLanguage: "Chinese",
+	})
+	should.Nil(err)
+	should.Equal(`{"user_name":"taowen","first_language":"Chinese"}`, string(output))
+}
+
+func Test_set_naming_strategy_with_overrides(t *testing.T) {
+	should := require.New(t)
+	SetNamingStrategy(LowerCaseWithUnderscores)
+	output, err := jsoniter.Marshal(struct {
+		UserName      string `json:"UserName"`
+		FirstLanguage string
+	}{
+		UserName:      "taowen",
+		FirstLanguage: "Chinese",
+	})
+	should.Nil(err)
+	should.Equal(`{"UserName":"taowen","first_language":"Chinese"}`, string(output))
+}
+
+func Test_set_naming_strategy_with_omitempty(t *testing.T) {
+	should := require.New(t)
+	SetNamingStrategy(LowerCaseWithUnderscores)
+	output, err := jsoniter.Marshal(struct {
+		UserName      string
+		FirstLanguage string `json:",omitempty"`
+	}{
+		UserName: "taowen",
+	})
+	should.Nil(err)
+	should.Equal(`{"user_name":"taowen"}`, string(output))
+}
+
+func Test_set_naming_strategy_with_private_field(t *testing.T) {
+	should := require.New(t)
+	SetNamingStrategy(LowerCaseWithUnderscores)
+	output, err := jsoniter.Marshal(struct {
+		UserName string
+		userId   int
+		_UserAge int
+	}{
+		UserName: "allen",
+		userId:   100,
+		_UserAge: 30,
+	})
+	should.Nil(err)
+	should.Equal(`{"user_name":"allen"}`, string(output))
+}

extra/privat_fields.go

@@ -0,0 +1,54 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"strings"
+	"unicode"
+)
+
+// SupportPrivateFields include private fields when encoding/decoding
+func SupportPrivateFields() {
+	jsoniter.RegisterExtension(&privateFieldsExtension{})
+}
+
+type privateFieldsExtension struct {
+	jsoniter.DummyExtension
+}
+
+func (extension *privateFieldsExtension) UpdateStructDescriptor(structDescriptor *jsoniter.StructDescriptor) {
+	for _, binding := range structDescriptor.Fields {
+		isPrivate := unicode.IsLower(rune(binding.Field.Name()[0]))
+		if isPrivate {
+			tag, hastag := binding.Field.Tag().Lookup("json")
+			if !hastag {
+				binding.FromNames = []string{binding.Field.Name()}
+				binding.ToNames = []string{binding.Field.Name()}
+				continue
+			}
+			tagParts := strings.Split(tag, ",")
+			names := calcFieldNames(binding.Field.Name(), tagParts[0], tag)
+			binding.FromNames = names
+			binding.ToNames = names
+		}
+	}
+}
+
+func calcFieldNames(originalFieldName string, tagProvidedFieldName string, wholeTag string) []string {
+	// ignore?
+	if wholeTag == "-" {
+		return []string{}
+	}
+	// rename?
+	var fieldNames []string
+	if tagProvidedFieldName == "" {
+		fieldNames = []string{originalFieldName}
+	} else {
+		fieldNames = []string{tagProvidedFieldName}
+	}
+	// private?
+	isNotExported := unicode.IsLower(rune(originalFieldName[0]))
+	if isNotExported {
+		fieldNames = []string{}
+	}
+	return fieldNames
+}

extra/private_fields_test.go

@@ -0,0 +1,18 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_private_fields(t *testing.T) {
+	type TestObject struct {
+		field1 string
+	}
+	SupportPrivateFields()
+	should := require.New(t)
+	obj := TestObject{}
+	should.Nil(jsoniter.UnmarshalFromString(`{"field1":"Hello"}`, &obj))
+	should.Equal("Hello", obj.field1)
+}

extra/time_as_int64_codec.go

@@ -0,0 +1,31 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"time"
+	"unsafe"
+)
+
+// RegisterTimeAsInt64Codec encode/decode time since number of unit since epoch. the precision is the unit.
+func RegisterTimeAsInt64Codec(precision time.Duration) {
+	jsoniter.RegisterTypeEncoder("time.Time", &timeAsInt64Codec{precision})
+	jsoniter.RegisterTypeDecoder("time.Time", &timeAsInt64Codec{precision})
+}
+
+type timeAsInt64Codec struct {
+	precision time.Duration
+}
+
+func (codec *timeAsInt64Codec) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	nanoseconds := iter.ReadInt64() * codec.precision.Nanoseconds()
+	*((*time.Time)(ptr)) = time.Unix(0, nanoseconds)
+}
+
+func (codec *timeAsInt64Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	ts := *((*time.Time)(ptr))
+	return ts.UnixNano() == 0
+}
+func (codec *timeAsInt64Codec) Encode(ptr unsafe.Pointer, stream *jsoniter.Stream) {
+	ts := *((*time.Time)(ptr))
+	stream.WriteInt64(ts.UnixNano() / codec.precision.Nanoseconds())
+}

extra/time_as_int64_codec_test.go

@@ -0,0 +1,31 @@
+package extra
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"testing"
+	"time"
+)
+
+func Test_time_as_int64(t *testing.T) {
+	should := require.New(t)
+	RegisterTimeAsInt64Codec(time.Nanosecond)
+	output, err := jsoniter.Marshal(time.Unix(1497952257, 1002))
+	should.Nil(err)
+	should.Equal("1497952257000001002", string(output))
+	var val time.Time
+	should.Nil(jsoniter.Unmarshal(output, &val))
+	should.Equal(int64(1497952257000001002), val.UnixNano())
+}
+
+func Test_time_as_int64_keep_microsecond(t *testing.T) {
+	t.Skip("conflict")
+	should := require.New(t)
+	RegisterTimeAsInt64Codec(time.Microsecond)
+	output, err := jsoniter.Marshal(time.Unix(1, 1002))
+	should.Nil(err)
+	should.Equal("1000001", string(output))
+	var val time.Time
+	should.Nil(jsoniter.Unmarshal(output, &val))
+	should.Equal(int64(1000001000), val.UnixNano())
+}

fuzzy_mode_convert_table.md

@@ -0,0 +1,7 @@
+| json type \ dest type | bool | int | uint | float |string|
+| --- | --- | --- | --- |--|--|
+| number | positive => true <br/> negative => true <br/> zero => false| 23.2 => 23 <br/> -32.1 => -32| 12.1 => 12 <br/> -12.1 => 0|as normal|same as origin|
+| string | empty string => false <br/> string "0" => false <br/> other strings => true | "123.32" => 123 <br/> "-123.4" => -123 <br/> "123.23xxxw" => 123 <br/>  "abcde12" => 0 <br/> "-32.1" => -32| 13.2 => 13 <br/> -1.1 => 0 |12.1 => 12.1 <br/> -12.3 => -12.3<br/> 12.4xxa => 12.4 <br/> +1.1e2 =>110 |same as origin|
+| bool | true => true <br/> false => false| true => 1 <br/> false => 0 | true => 1 <br/> false => 0 |true => 1 <br/>false => 0|true => "true" <br/> false => "false"|
+| object | true | 0 | 0 |0|originnal json|
+| array | empty array => false <br/> nonempty array => true| [] => 0 <br/> [1,2] => 1 | [] => 0 <br/> [1,2] => 1 |[] => 0<br/>[1,2] => 1|original json|

go.mod

@@ -0,0 +1,11 @@
+module github.com/json-iterator/go
+
+go 1.12
+
+require (
+	github.com/davecgh/go-spew v1.1.1
+	github.com/google/gofuzz v1.0.0
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421
+	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742
+	github.com/stretchr/testify v1.3.0
+)

go.sum

@@ -0,0 +1,15 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/gofuzz v1.0.0 h1:A8PeW59pxE9IoFRqBp37U+mSNaQoZ46F1f0f863XSXw=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

iter.go

@@ -0,0 +1,349 @@
+package jsoniter
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+)
+
+// ValueType the type for JSON element
+type ValueType int
+
+const (
+	// InvalidValue invalid JSON element
+	InvalidValue ValueType = iota
+	// StringValue JSON element "string"
+	StringValue
+	// NumberValue JSON element 100 or 0.10
+	NumberValue
+	// NilValue JSON element null
+	NilValue
+	// BoolValue JSON element true or false
+	BoolValue
+	// ArrayValue JSON element []
+	ArrayValue
+	// ObjectValue JSON element {}
+	ObjectValue
+)
+
+var hexDigits []byte
+var valueTypes []ValueType
+
+func init() {
+	hexDigits = make([]byte, 256)
+	for i := 0; i < len(hexDigits); i++ {
+		hexDigits[i] = 255
+	}
+	for i := '0'; i <= '9'; i++ {
+		hexDigits[i] = byte(i - '0')
+	}
+	for i := 'a'; i <= 'f'; i++ {
+		hexDigits[i] = byte((i - 'a') + 10)
+	}
+	for i := 'A'; i <= 'F'; i++ {
+		hexDigits[i] = byte((i - 'A') + 10)
+	}
+	valueTypes = make([]ValueType, 256)
+	for i := 0; i < len(valueTypes); i++ {
+		valueTypes[i] = InvalidValue
+	}
+	valueTypes['"'] = StringValue
+	valueTypes['-'] = NumberValue
+	valueTypes['0'] = NumberValue
+	valueTypes['1'] = NumberValue
+	valueTypes['2'] = NumberValue
+	valueTypes['3'] = NumberValue
+	valueTypes['4'] = NumberValue
+	valueTypes['5'] = NumberValue
+	valueTypes['6'] = NumberValue
+	valueTypes['7'] = NumberValue
+	valueTypes['8'] = NumberValue
+	valueTypes['9'] = NumberValue
+	valueTypes['t'] = BoolValue
+	valueTypes['f'] = BoolValue
+	valueTypes['n'] = NilValue
+	valueTypes['['] = ArrayValue
+	valueTypes['{'] = ObjectValue
+}
+
+// Iterator is a io.Reader like object, with JSON specific read functions.
+// Error is not returned as return value, but stored as Error member on this iterator instance.
+type Iterator struct {
+	cfg              *frozenConfig
+	reader           io.Reader
+	buf              []byte
+	head             int
+	tail             int
+	depth            int
+	captureStartedAt int
+	captured         []byte
+	Error            error
+	Attachment       interface{} // open for customized decoder
+}
+
+// NewIterator creates an empty Iterator instance
+func NewIterator(cfg API) *Iterator {
+	return &Iterator{
+		cfg:    cfg.(*frozenConfig),
+		reader: nil,
+		buf:    nil,
+		head:   0,
+		tail:   0,
+		depth:  0,
+	}
+}
+
+// Parse creates an Iterator instance from io.Reader
+func Parse(cfg API, reader io.Reader, bufSize int) *Iterator {
+	return &Iterator{
+		cfg:    cfg.(*frozenConfig),
+		reader: reader,
+		buf:    make([]byte, bufSize),
+		head:   0,
+		tail:   0,
+		depth:  0,
+	}
+}
+
+// ParseBytes creates an Iterator instance from byte array
+func ParseBytes(cfg API, input []byte) *Iterator {
+	return &Iterator{
+		cfg:    cfg.(*frozenConfig),
+		reader: nil,
+		buf:    input,
+		head:   0,
+		tail:   len(input),
+		depth:  0,
+	}
+}
+
+// ParseString creates an Iterator instance from string
+func ParseString(cfg API, input string) *Iterator {
+	return ParseBytes(cfg, []byte(input))
+}
+
+// Pool returns a pool can provide more iterator with same configuration
+func (iter *Iterator) Pool() IteratorPool {
+	return iter.cfg
+}
+
+// Reset reuse iterator instance by specifying another reader
+func (iter *Iterator) Reset(reader io.Reader) *Iterator {
+	iter.reader = reader
+	iter.head = 0
+	iter.tail = 0
+	iter.depth = 0
+	return iter
+}
+
+// ResetBytes reuse iterator instance by specifying another byte array as input
+func (iter *Iterator) ResetBytes(input []byte) *Iterator {
+	iter.reader = nil
+	iter.buf = input
+	iter.head = 0
+	iter.tail = len(input)
+	iter.depth = 0
+	return iter
+}
+
+// WhatIsNext gets ValueType of relatively next json element
+func (iter *Iterator) WhatIsNext() ValueType {
+	valueType := valueTypes[iter.nextToken()]
+	iter.unreadByte()
+	return valueType
+}
+
+func (iter *Iterator) skipWhitespacesWithoutLoadMore() bool {
+	for i := iter.head; i < iter.tail; i++ {
+		c := iter.buf[i]
+		switch c {
+		case ' ', '\n', '\t', '\r':
+			continue
+		}
+		iter.head = i
+		return false
+	}
+	return true
+}
+
+func (iter *Iterator) isObjectEnd() bool {
+	c := iter.nextToken()
+	if c == ',' {
+		return false
+	}
+	if c == '}' {
+		return true
+	}
+	iter.ReportError("isObjectEnd", "object ended prematurely, unexpected char "+string([]byte{c}))
+	return true
+}
+
+func (iter *Iterator) nextToken() byte {
+	// a variation of skip whitespaces, returning the next non-whitespace token
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			c := iter.buf[i]
+			switch c {
+			case ' ', '\n', '\t', '\r':
+				continue
+			}
+			iter.head = i + 1
+			return c
+		}
+		if !iter.loadMore() {
+			return 0
+		}
+	}
+}
+
+// ReportError record a error in iterator instance with current position.
+func (iter *Iterator) ReportError(operation string, msg string) {
+	if iter.Error != nil {
+		if iter.Error != io.EOF {
+			return
+		}
+	}
+	peekStart := iter.head - 10
+	if peekStart < 0 {
+		peekStart = 0
+	}
+	peekEnd := iter.head + 10
+	if peekEnd > iter.tail {
+		peekEnd = iter.tail
+	}
+	parsing := string(iter.buf[peekStart:peekEnd])
+	contextStart := iter.head - 50
+	if contextStart < 0 {
+		contextStart = 0
+	}
+	contextEnd := iter.head + 50
+	if contextEnd > iter.tail {
+		contextEnd = iter.tail
+	}
+	context := string(iter.buf[contextStart:contextEnd])
+	iter.Error = fmt.Errorf("%s: %s, error found in #%v byte of ...|%s|..., bigger context ...|%s|...",
+		operation, msg, iter.head-peekStart, parsing, context)
+}
+
+// CurrentBuffer gets current buffer as string for debugging purpose
+func (iter *Iterator) CurrentBuffer() string {
+	peekStart := iter.head - 10
+	if peekStart < 0 {
+		peekStart = 0
+	}
+	return fmt.Sprintf("parsing #%v byte, around ...|%s|..., whole buffer ...|%s|...", iter.head,
+		string(iter.buf[peekStart:iter.head]), string(iter.buf[0:iter.tail]))
+}
+
+func (iter *Iterator) readByte() (ret byte) {
+	if iter.head == iter.tail {
+		if iter.loadMore() {
+			ret = iter.buf[iter.head]
+			iter.head++
+			return ret
+		}
+		return 0
+	}
+	ret = iter.buf[iter.head]
+	iter.head++
+	return ret
+}
+
+func (iter *Iterator) loadMore() bool {
+	if iter.reader == nil {
+		if iter.Error == nil {
+			iter.head = iter.tail
+			iter.Error = io.EOF
+		}
+		return false
+	}
+	if iter.captured != nil {
+		iter.captured = append(iter.captured,
+			iter.buf[iter.captureStartedAt:iter.tail]...)
+		iter.captureStartedAt = 0
+	}
+	for {
+		n, err := iter.reader.Read(iter.buf)
+		if n == 0 {
+			if err != nil {
+				if iter.Error == nil {
+					iter.Error = err
+				}
+				return false
+			}
+		} else {
+			iter.head = 0
+			iter.tail = n
+			return true
+		}
+	}
+}
+
+func (iter *Iterator) unreadByte() {
+	if iter.Error != nil {
+		return
+	}
+	iter.head--
+	return
+}
+
+// Read read the next JSON element as generic interface{}.
+func (iter *Iterator) Read() interface{} {
+	valueType := iter.WhatIsNext()
+	switch valueType {
+	case StringValue:
+		return iter.ReadString()
+	case NumberValue:
+		if iter.cfg.configBeforeFrozen.UseNumber {
+			return json.Number(iter.readNumberAsString())
+		}
+		return iter.ReadFloat64()
+	case NilValue:
+		iter.skipFourBytes('n', 'u', 'l', 'l')
+		return nil
+	case BoolValue:
+		return iter.ReadBool()
+	case ArrayValue:
+		arr := []interface{}{}
+		iter.ReadArrayCB(func(iter *Iterator) bool {
+			var elem interface{}
+			iter.ReadVal(&elem)
+			arr = append(arr, elem)
+			return true
+		})
+		return arr
+	case ObjectValue:
+		obj := map[string]interface{}{}
+		iter.ReadMapCB(func(Iter *Iterator, field string) bool {
+			var elem interface{}
+			iter.ReadVal(&elem)
+			obj[field] = elem
+			return true
+		})
+		return obj
+	default:
+		iter.ReportError("Read", fmt.Sprintf("unexpected value type: %v", valueType))
+		return nil
+	}
+}
+
+// limit maximum depth of nesting, as allowed by https://tools.ietf.org/html/rfc7159#section-9
+const maxDepth = 10000
+
+func (iter *Iterator) incrementDepth() (success bool) {
+	iter.depth++
+	if iter.depth <= maxDepth {
+		return true
+	}
+	iter.ReportError("incrementDepth", "exceeded max depth")
+	return false
+}
+
+func (iter *Iterator) decrementDepth() (success bool) {
+	iter.depth--
+	if iter.depth >= 0 {
+		return true
+	}
+	iter.ReportError("decrementDepth", "unexpected negative nesting")
+	return false
+}

iter_array.go

@@ -0,0 +1,64 @@
+package jsoniter
+
+// ReadArray read array element, tells if the array has more element to read.
+func (iter *Iterator) ReadArray() (ret bool) {
+	c := iter.nextToken()
+	switch c {
+	case 'n':
+		iter.skipThreeBytes('u', 'l', 'l')
+		return false // null
+	case '[':
+		c = iter.nextToken()
+		if c != ']' {
+			iter.unreadByte()
+			return true
+		}
+		return false
+	case ']':
+		return false
+	case ',':
+		return true
+	default:
+		iter.ReportError("ReadArray", "expect [ or , or ] or n, but found "+string([]byte{c}))
+		return
+	}
+}
+
+// ReadArrayCB read array with callback
+func (iter *Iterator) ReadArrayCB(callback func(*Iterator) bool) (ret bool) {
+	c := iter.nextToken()
+	if c == '[' {
+		if !iter.incrementDepth() {
+			return false
+		}
+		c = iter.nextToken()
+		if c != ']' {
+			iter.unreadByte()
+			if !callback(iter) {
+				iter.decrementDepth()
+				return false
+			}
+			c = iter.nextToken()
+			for c == ',' {
+				if !callback(iter) {
+					iter.decrementDepth()
+					return false
+				}
+				c = iter.nextToken()
+			}
+			if c != ']' {
+				iter.ReportError("ReadArrayCB", "expect ] in the end, but found "+string([]byte{c}))
+				iter.decrementDepth()
+				return false
+			}
+			return iter.decrementDepth()
+		}
+		return iter.decrementDepth()
+	}
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		return true // null
+	}
+	iter.ReportError("ReadArrayCB", "expect [ or n, but found "+string([]byte{c}))
+	return false
+}

iter_float.go

@@ -0,0 +1,342 @@
+package jsoniter
+
+import (
+	"encoding/json"
+	"io"
+	"math/big"
+	"strconv"
+	"strings"
+	"unsafe"
+)
+
+var floatDigits []int8
+
+const invalidCharForNumber = int8(-1)
+const endOfNumber = int8(-2)
+const dotInNumber = int8(-3)
+
+func init() {
+	floatDigits = make([]int8, 256)
+	for i := 0; i < len(floatDigits); i++ {
+		floatDigits[i] = invalidCharForNumber
+	}
+	for i := int8('0'); i <= int8('9'); i++ {
+		floatDigits[i] = i - int8('0')
+	}
+	floatDigits[','] = endOfNumber
+	floatDigits[']'] = endOfNumber
+	floatDigits['}'] = endOfNumber
+	floatDigits[' '] = endOfNumber
+	floatDigits['\t'] = endOfNumber
+	floatDigits['\n'] = endOfNumber
+	floatDigits['.'] = dotInNumber
+}
+
+// ReadBigFloat read big.Float
+func (iter *Iterator) ReadBigFloat() (ret *big.Float) {
+	str := iter.readNumberAsString()
+	if iter.Error != nil && iter.Error != io.EOF {
+		return nil
+	}
+	prec := 64
+	if len(str) > prec {
+		prec = len(str)
+	}
+	val, _, err := big.ParseFloat(str, 10, uint(prec), big.ToZero)
+	if err != nil {
+		iter.Error = err
+		return nil
+	}
+	return val
+}
+
+// ReadBigInt read big.Int
+func (iter *Iterator) ReadBigInt() (ret *big.Int) {
+	str := iter.readNumberAsString()
+	if iter.Error != nil && iter.Error != io.EOF {
+		return nil
+	}
+	ret = big.NewInt(0)
+	var success bool
+	ret, success = ret.SetString(str, 10)
+	if !success {
+		iter.ReportError("ReadBigInt", "invalid big int")
+		return nil
+	}
+	return ret
+}
+
+//ReadFloat32 read float32
+func (iter *Iterator) ReadFloat32() (ret float32) {
+	c := iter.nextToken()
+	if c == '-' {
+		return -iter.readPositiveFloat32()
+	}
+	iter.unreadByte()
+	return iter.readPositiveFloat32()
+}
+
+func (iter *Iterator) readPositiveFloat32() (ret float32) {
+	i := iter.head
+	// first char
+	if i == iter.tail {
+		return iter.readFloat32SlowPath()
+	}
+	c := iter.buf[i]
+	i++
+	ind := floatDigits[c]
+	switch ind {
+	case invalidCharForNumber:
+		return iter.readFloat32SlowPath()
+	case endOfNumber:
+		iter.ReportError("readFloat32", "empty number")
+		return
+	case dotInNumber:
+		iter.ReportError("readFloat32", "leading dot is invalid")
+		return
+	case 0:
+		if i == iter.tail {
+			return iter.readFloat32SlowPath()
+		}
+		c = iter.buf[i]
+		switch c {
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+			iter.ReportError("readFloat32", "leading zero is invalid")
+			return
+		}
+	}
+	value := uint64(ind)
+	// chars before dot
+non_decimal_loop:
+	for ; i < iter.tail; i++ {
+		c = iter.buf[i]
+		ind := floatDigits[c]
+		switch ind {
+		case invalidCharForNumber:
+			return iter.readFloat32SlowPath()
+		case endOfNumber:
+			iter.head = i
+			return float32(value)
+		case dotInNumber:
+			break non_decimal_loop
+		}
+		if value > uint64SafeToMultiple10 {
+			return iter.readFloat32SlowPath()
+		}
+		value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
+	}
+	// chars after dot
+	if c == '.' {
+		i++
+		decimalPlaces := 0
+		if i == iter.tail {
+			return iter.readFloat32SlowPath()
+		}
+		for ; i < iter.tail; i++ {
+			c = iter.buf[i]
+			ind := floatDigits[c]
+			switch ind {
+			case endOfNumber:
+				if decimalPlaces > 0 && decimalPlaces < len(pow10) {
+					iter.head = i
+					return float32(float64(value) / float64(pow10[decimalPlaces]))
+				}
+				// too many decimal places
+				return iter.readFloat32SlowPath()
+			case invalidCharForNumber, dotInNumber:
+				return iter.readFloat32SlowPath()
+			}
+			decimalPlaces++
+			if value > uint64SafeToMultiple10 {
+				return iter.readFloat32SlowPath()
+			}
+			value = (value << 3) + (value << 1) + uint64(ind)
+		}
+	}
+	return iter.readFloat32SlowPath()
+}
+
+func (iter *Iterator) readNumberAsString() (ret string) {
+	strBuf := [16]byte{}
+	str := strBuf[0:0]
+load_loop:
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			c := iter.buf[i]
+			switch c {
+			case '+', '-', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+				str = append(str, c)
+				continue
+			default:
+				iter.head = i
+				break load_loop
+			}
+		}
+		if !iter.loadMore() {
+			break
+		}
+	}
+	if iter.Error != nil && iter.Error != io.EOF {
+		return
+	}
+	if len(str) == 0 {
+		iter.ReportError("readNumberAsString", "invalid number")
+	}
+	return *(*string)(unsafe.Pointer(&str))
+}
+
+func (iter *Iterator) readFloat32SlowPath() (ret float32) {
+	str := iter.readNumberAsString()
+	if iter.Error != nil && iter.Error != io.EOF {
+		return
+	}
+	errMsg := validateFloat(str)
+	if errMsg != "" {
+		iter.ReportError("readFloat32SlowPath", errMsg)
+		return
+	}
+	val, err := strconv.ParseFloat(str, 32)
+	if err != nil {
+		iter.Error = err
+		return
+	}
+	return float32(val)
+}
+
+// ReadFloat64 read float64
+func (iter *Iterator) ReadFloat64() (ret float64) {
+	c := iter.nextToken()
+	if c == '-' {
+		return -iter.readPositiveFloat64()
+	}
+	iter.unreadByte()
+	return iter.readPositiveFloat64()
+}
+
+func (iter *Iterator) readPositiveFloat64() (ret float64) {
+	i := iter.head
+	// first char
+	if i == iter.tail {
+		return iter.readFloat64SlowPath()
+	}
+	c := iter.buf[i]
+	i++
+	ind := floatDigits[c]
+	switch ind {
+	case invalidCharForNumber:
+		return iter.readFloat64SlowPath()
+	case endOfNumber:
+		iter.ReportError("readFloat64", "empty number")
+		return
+	case dotInNumber:
+		iter.ReportError("readFloat64", "leading dot is invalid")
+		return
+	case 0:
+		if i == iter.tail {
+			return iter.readFloat64SlowPath()
+		}
+		c = iter.buf[i]
+		switch c {
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+			iter.ReportError("readFloat64", "leading zero is invalid")
+			return
+		}
+	}
+	value := uint64(ind)
+	// chars before dot
+non_decimal_loop:
+	for ; i < iter.tail; i++ {
+		c = iter.buf[i]
+		ind := floatDigits[c]
+		switch ind {
+		case invalidCharForNumber:
+			return iter.readFloat64SlowPath()
+		case endOfNumber:
+			iter.head = i
+			return float64(value)
+		case dotInNumber:
+			break non_decimal_loop
+		}
+		if value > uint64SafeToMultiple10 {
+			return iter.readFloat64SlowPath()
+		}
+		value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
+	}
+	// chars after dot
+	if c == '.' {
+		i++
+		decimalPlaces := 0
+		if i == iter.tail {
+			return iter.readFloat64SlowPath()
+		}
+		for ; i < iter.tail; i++ {
+			c = iter.buf[i]
+			ind := floatDigits[c]
+			switch ind {
+			case endOfNumber:
+				if decimalPlaces > 0 && decimalPlaces < len(pow10) {
+					iter.head = i
+					return float64(value) / float64(pow10[decimalPlaces])
+				}
+				// too many decimal places
+				return iter.readFloat64SlowPath()
+			case invalidCharForNumber, dotInNumber:
+				return iter.readFloat64SlowPath()
+			}
+			decimalPlaces++
+			if value > uint64SafeToMultiple10 {
+				return iter.readFloat64SlowPath()
+			}
+			value = (value << 3) + (value << 1) + uint64(ind)
+			if value > maxFloat64 {
+				return iter.readFloat64SlowPath()
+			}
+		}
+	}
+	return iter.readFloat64SlowPath()
+}
+
+func (iter *Iterator) readFloat64SlowPath() (ret float64) {
+	str := iter.readNumberAsString()
+	if iter.Error != nil && iter.Error != io.EOF {
+		return
+	}
+	errMsg := validateFloat(str)
+	if errMsg != "" {
+		iter.ReportError("readFloat64SlowPath", errMsg)
+		return
+	}
+	val, err := strconv.ParseFloat(str, 64)
+	if err != nil {
+		iter.Error = err
+		return
+	}
+	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 ""
+}
+
+// ReadNumber read json.Number
+func (iter *Iterator) ReadNumber() (ret json.Number) {
+	return json.Number(iter.readNumberAsString())
+}

iter_int.go

@@ -0,0 +1,346 @@
+package jsoniter
+
+import (
+	"math"
+	"strconv"
+)
+
+var intDigits []int8
+
+const uint32SafeToMultiply10 = uint32(0xffffffff)/10 - 1
+const uint64SafeToMultiple10 = uint64(0xffffffffffffffff)/10 - 1
+const maxFloat64 = 1<<53 - 1
+
+func init() {
+	intDigits = make([]int8, 256)
+	for i := 0; i < len(intDigits); i++ {
+		intDigits[i] = invalidCharForNumber
+	}
+	for i := int8('0'); i <= int8('9'); i++ {
+		intDigits[i] = i - int8('0')
+	}
+}
+
+// ReadUint read uint
+func (iter *Iterator) ReadUint() uint {
+	if strconv.IntSize == 32 {
+		return uint(iter.ReadUint32())
+	}
+	return uint(iter.ReadUint64())
+}
+
+// ReadInt read int
+func (iter *Iterator) ReadInt() int {
+	if strconv.IntSize == 32 {
+		return int(iter.ReadInt32())
+	}
+	return int(iter.ReadInt64())
+}
+
+// ReadInt8 read int8
+func (iter *Iterator) ReadInt8() (ret int8) {
+	c := iter.nextToken()
+	if c == '-' {
+		val := iter.readUint32(iter.readByte())
+		if val > math.MaxInt8+1 {
+			iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10))
+			return
+		}
+		return -int8(val)
+	}
+	val := iter.readUint32(c)
+	if val > math.MaxInt8 {
+		iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10))
+		return
+	}
+	return int8(val)
+}
+
+// ReadUint8 read uint8
+func (iter *Iterator) ReadUint8() (ret uint8) {
+	val := iter.readUint32(iter.nextToken())
+	if val > math.MaxUint8 {
+		iter.ReportError("ReadUint8", "overflow: "+strconv.FormatInt(int64(val), 10))
+		return
+	}
+	return uint8(val)
+}
+
+// ReadInt16 read int16
+func (iter *Iterator) ReadInt16() (ret int16) {
+	c := iter.nextToken()
+	if c == '-' {
+		val := iter.readUint32(iter.readByte())
+		if val > math.MaxInt16+1 {
+			iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10))
+			return
+		}
+		return -int16(val)
+	}
+	val := iter.readUint32(c)
+	if val > math.MaxInt16 {
+		iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10))
+		return
+	}
+	return int16(val)
+}
+
+// ReadUint16 read uint16
+func (iter *Iterator) ReadUint16() (ret uint16) {
+	val := iter.readUint32(iter.nextToken())
+	if val > math.MaxUint16 {
+		iter.ReportError("ReadUint16", "overflow: "+strconv.FormatInt(int64(val), 10))
+		return
+	}
+	return uint16(val)
+}
+
+// ReadInt32 read int32
+func (iter *Iterator) ReadInt32() (ret int32) {
+	c := iter.nextToken()
+	if c == '-' {
+		val := iter.readUint32(iter.readByte())
+		if val > math.MaxInt32+1 {
+			iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10))
+			return
+		}
+		return -int32(val)
+	}
+	val := iter.readUint32(c)
+	if val > math.MaxInt32 {
+		iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10))
+		return
+	}
+	return int32(val)
+}
+
+// ReadUint32 read uint32
+func (iter *Iterator) ReadUint32() (ret uint32) {
+	return iter.readUint32(iter.nextToken())
+}
+
+func (iter *Iterator) readUint32(c byte) (ret uint32) {
+	ind := intDigits[c]
+	if ind == 0 {
+		iter.assertInteger()
+		return 0 // single zero
+	}
+	if ind == invalidCharForNumber {
+		iter.ReportError("readUint32", "unexpected character: "+string([]byte{byte(ind)}))
+		return
+	}
+	value := uint32(ind)
+	if iter.tail-iter.head > 10 {
+		i := iter.head
+		ind2 := intDigits[iter.buf[i]]
+		if ind2 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value
+		}
+		i++
+		ind3 := intDigits[iter.buf[i]]
+		if ind3 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*10 + uint32(ind2)
+		}
+		//iter.head = i + 1
+		//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
+		i++
+		ind4 := intDigits[iter.buf[i]]
+		if ind4 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*100 + uint32(ind2)*10 + uint32(ind3)
+		}
+		i++
+		ind5 := intDigits[iter.buf[i]]
+		if ind5 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*1000 + uint32(ind2)*100 + uint32(ind3)*10 + uint32(ind4)
+		}
+		i++
+		ind6 := intDigits[iter.buf[i]]
+		if ind6 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*10000 + uint32(ind2)*1000 + uint32(ind3)*100 + uint32(ind4)*10 + uint32(ind5)
+		}
+		i++
+		ind7 := intDigits[iter.buf[i]]
+		if ind7 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*100000 + uint32(ind2)*10000 + uint32(ind3)*1000 + uint32(ind4)*100 + uint32(ind5)*10 + uint32(ind6)
+		}
+		i++
+		ind8 := intDigits[iter.buf[i]]
+		if ind8 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*1000000 + uint32(ind2)*100000 + uint32(ind3)*10000 + uint32(ind4)*1000 + uint32(ind5)*100 + uint32(ind6)*10 + uint32(ind7)
+		}
+		i++
+		ind9 := intDigits[iter.buf[i]]
+		value = value*10000000 + uint32(ind2)*1000000 + uint32(ind3)*100000 + uint32(ind4)*10000 + uint32(ind5)*1000 + uint32(ind6)*100 + uint32(ind7)*10 + uint32(ind8)
+		iter.head = i
+		if ind9 == invalidCharForNumber {
+			iter.assertInteger()
+			return value
+		}
+	}
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			ind = intDigits[iter.buf[i]]
+			if ind == invalidCharForNumber {
+				iter.head = i
+				iter.assertInteger()
+				return value
+			}
+			if value > uint32SafeToMultiply10 {
+				value2 := (value << 3) + (value << 1) + uint32(ind)
+				if value2 < value {
+					iter.ReportError("readUint32", "overflow")
+					return
+				}
+				value = value2
+				continue
+			}
+			value = (value << 3) + (value << 1) + uint32(ind)
+		}
+		if !iter.loadMore() {
+			iter.assertInteger()
+			return value
+		}
+	}
+}
+
+// ReadInt64 read int64
+func (iter *Iterator) ReadInt64() (ret int64) {
+	c := iter.nextToken()
+	if c == '-' {
+		val := iter.readUint64(iter.readByte())
+		if val > math.MaxInt64+1 {
+			iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10))
+			return
+		}
+		return -int64(val)
+	}
+	val := iter.readUint64(c)
+	if val > math.MaxInt64 {
+		iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10))
+		return
+	}
+	return int64(val)
+}
+
+// ReadUint64 read uint64
+func (iter *Iterator) ReadUint64() uint64 {
+	return iter.readUint64(iter.nextToken())
+}
+
+func (iter *Iterator) readUint64(c byte) (ret uint64) {
+	ind := intDigits[c]
+	if ind == 0 {
+		iter.assertInteger()
+		return 0 // single zero
+	}
+	if ind == invalidCharForNumber {
+		iter.ReportError("readUint64", "unexpected character: "+string([]byte{byte(ind)}))
+		return
+	}
+	value := uint64(ind)
+	if iter.tail-iter.head > 10 {
+		i := iter.head
+		ind2 := intDigits[iter.buf[i]]
+		if ind2 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value
+		}
+		i++
+		ind3 := intDigits[iter.buf[i]]
+		if ind3 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*10 + uint64(ind2)
+		}
+		//iter.head = i + 1
+		//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
+		i++
+		ind4 := intDigits[iter.buf[i]]
+		if ind4 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*100 + uint64(ind2)*10 + uint64(ind3)
+		}
+		i++
+		ind5 := intDigits[iter.buf[i]]
+		if ind5 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*1000 + uint64(ind2)*100 + uint64(ind3)*10 + uint64(ind4)
+		}
+		i++
+		ind6 := intDigits[iter.buf[i]]
+		if ind6 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*10000 + uint64(ind2)*1000 + uint64(ind3)*100 + uint64(ind4)*10 + uint64(ind5)
+		}
+		i++
+		ind7 := intDigits[iter.buf[i]]
+		if ind7 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*100000 + uint64(ind2)*10000 + uint64(ind3)*1000 + uint64(ind4)*100 + uint64(ind5)*10 + uint64(ind6)
+		}
+		i++
+		ind8 := intDigits[iter.buf[i]]
+		if ind8 == invalidCharForNumber {
+			iter.head = i
+			iter.assertInteger()
+			return value*1000000 + uint64(ind2)*100000 + uint64(ind3)*10000 + uint64(ind4)*1000 + uint64(ind5)*100 + uint64(ind6)*10 + uint64(ind7)
+		}
+		i++
+		ind9 := intDigits[iter.buf[i]]
+		value = value*10000000 + uint64(ind2)*1000000 + uint64(ind3)*100000 + uint64(ind4)*10000 + uint64(ind5)*1000 + uint64(ind6)*100 + uint64(ind7)*10 + uint64(ind8)
+		iter.head = i
+		if ind9 == invalidCharForNumber {
+			iter.assertInteger()
+			return value
+		}
+	}
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			ind = intDigits[iter.buf[i]]
+			if ind == invalidCharForNumber {
+				iter.head = i
+				iter.assertInteger()
+				return value
+			}
+			if value > uint64SafeToMultiple10 {
+				value2 := (value << 3) + (value << 1) + uint64(ind)
+				if value2 < value {
+					iter.ReportError("readUint64", "overflow")
+					return
+				}
+				value = value2
+				continue
+			}
+			value = (value << 3) + (value << 1) + uint64(ind)
+		}
+		if !iter.loadMore() {
+			iter.assertInteger()
+			return value
+		}
+	}
+}
+
+func (iter *Iterator) assertInteger() {
+	if iter.head < iter.tail && iter.buf[iter.head] == '.' {
+		iter.ReportError("assertInteger", "can not decode float as int")
+	}
+}

iter_object.go

@@ -0,0 +1,267 @@
+package jsoniter
+
+import (
+	"fmt"
+	"strings"
+)
+
+// ReadObject read one field from object.
+// If object ended, returns empty string.
+// Otherwise, returns the field name.
+func (iter *Iterator) ReadObject() (ret string) {
+	c := iter.nextToken()
+	switch c {
+	case 'n':
+		iter.skipThreeBytes('u', 'l', 'l')
+		return "" // null
+	case '{':
+		c = iter.nextToken()
+		if c == '"' {
+			iter.unreadByte()
+			field := iter.ReadString()
+			c = iter.nextToken()
+			if c != ':' {
+				iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
+			}
+			return field
+		}
+		if c == '}' {
+			return "" // end of object
+		}
+		iter.ReportError("ReadObject", `expect " after {, but found `+string([]byte{c}))
+		return
+	case ',':
+		field := iter.ReadString()
+		c = iter.nextToken()
+		if c != ':' {
+			iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
+		}
+		return field
+	case '}':
+		return "" // end of object
+	default:
+		iter.ReportError("ReadObject", fmt.Sprintf(`expect { or , or } or n, but found %s`, string([]byte{c})))
+		return
+	}
+}
+
+// CaseInsensitive
+func (iter *Iterator) readFieldHash() int64 {
+	hash := int64(0x811c9dc5)
+	c := iter.nextToken()
+	if c != '"' {
+		iter.ReportError("readFieldHash", `expect ", but found `+string([]byte{c}))
+		return 0
+	}
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			// require ascii string and no escape
+			b := iter.buf[i]
+			if b == '\\' {
+				iter.head = i
+				for _, b := range iter.readStringSlowPath() {
+					if 'A' <= b && b <= 'Z' && !iter.cfg.caseSensitive {
+						b += 'a' - 'A'
+					}
+					hash ^= int64(b)
+					hash *= 0x1000193
+				}
+				c = iter.nextToken()
+				if c != ':' {
+					iter.ReportError("readFieldHash", `expect :, but found `+string([]byte{c}))
+					return 0
+				}
+				return hash
+			}
+			if b == '"' {
+				iter.head = i + 1
+				c = iter.nextToken()
+				if c != ':' {
+					iter.ReportError("readFieldHash", `expect :, but found `+string([]byte{c}))
+					return 0
+				}
+				return hash
+			}
+			if 'A' <= b && b <= 'Z' && !iter.cfg.caseSensitive {
+				b += 'a' - 'A'
+			}
+			hash ^= int64(b)
+			hash *= 0x1000193
+		}
+		if !iter.loadMore() {
+			iter.ReportError("readFieldHash", `incomplete field name`)
+			return 0
+		}
+	}
+}
+
+func calcHash(str string, caseSensitive bool) int64 {
+	if !caseSensitive {
+		str = strings.ToLower(str)
+	}
+	hash := int64(0x811c9dc5)
+	for _, b := range []byte(str) {
+		hash ^= int64(b)
+		hash *= 0x1000193
+	}
+	return int64(hash)
+}
+
+// ReadObjectCB read object with callback, the key is ascii only and field name not copied
+func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool {
+	c := iter.nextToken()
+	var field string
+	if c == '{' {
+		if !iter.incrementDepth() {
+			return false
+		}
+		c = iter.nextToken()
+		if c == '"' {
+			iter.unreadByte()
+			field = iter.ReadString()
+			c = iter.nextToken()
+			if c != ':' {
+				iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
+			}
+			if !callback(iter, field) {
+				iter.decrementDepth()
+				return false
+			}
+			c = iter.nextToken()
+			for c == ',' {
+				field = iter.ReadString()
+				c = iter.nextToken()
+				if c != ':' {
+					iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
+				}
+				if !callback(iter, field) {
+					iter.decrementDepth()
+					return false
+				}
+				c = iter.nextToken()
+			}
+			if c != '}' {
+				iter.ReportError("ReadObjectCB", `object not ended with }`)
+				iter.decrementDepth()
+				return false
+			}
+			return iter.decrementDepth()
+		}
+		if c == '}' {
+			return iter.decrementDepth()
+		}
+		iter.ReportError("ReadObjectCB", `expect " after {, but found `+string([]byte{c}))
+		iter.decrementDepth()
+		return false
+	}
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		return true // null
+	}
+	iter.ReportError("ReadObjectCB", `expect { or n, but found `+string([]byte{c}))
+	return false
+}
+
+// ReadMapCB read map with callback, the key can be any string
+func (iter *Iterator) ReadMapCB(callback func(*Iterator, string) bool) bool {
+	c := iter.nextToken()
+	if c == '{' {
+		if !iter.incrementDepth() {
+			return false
+		}
+		c = iter.nextToken()
+		if c == '"' {
+			iter.unreadByte()
+			field := iter.ReadString()
+			if iter.nextToken() != ':' {
+				iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
+				iter.decrementDepth()
+				return false
+			}
+			if !callback(iter, field) {
+				iter.decrementDepth()
+				return false
+			}
+			c = iter.nextToken()
+			for c == ',' {
+				field = iter.ReadString()
+				if iter.nextToken() != ':' {
+					iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
+					iter.decrementDepth()
+					return false
+				}
+				if !callback(iter, field) {
+					iter.decrementDepth()
+					return false
+				}
+				c = iter.nextToken()
+			}
+			if c != '}' {
+				iter.ReportError("ReadMapCB", `object not ended with }`)
+				iter.decrementDepth()
+				return false
+			}
+			return iter.decrementDepth()
+		}
+		if c == '}' {
+			return iter.decrementDepth()
+		}
+		iter.ReportError("ReadMapCB", `expect " after {, but found `+string([]byte{c}))
+		iter.decrementDepth()
+		return false
+	}
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		return true // null
+	}
+	iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c}))
+	return false
+}
+
+func (iter *Iterator) readObjectStart() bool {
+	c := iter.nextToken()
+	if c == '{' {
+		c = iter.nextToken()
+		if c == '}' {
+			return false
+		}
+		iter.unreadByte()
+		return true
+	} else if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		return false
+	}
+	iter.ReportError("readObjectStart", "expect { or n, but found "+string([]byte{c}))
+	return false
+}
+
+func (iter *Iterator) readObjectFieldAsBytes() (ret []byte) {
+	str := iter.ReadStringAsSlice()
+	if iter.skipWhitespacesWithoutLoadMore() {
+		if ret == nil {
+			ret = make([]byte, len(str))
+			copy(ret, str)
+		}
+		if !iter.loadMore() {
+			return
+		}
+	}
+	if iter.buf[iter.head] != ':' {
+		iter.ReportError("readObjectFieldAsBytes", "expect : after object field, but found "+string([]byte{iter.buf[iter.head]}))
+		return
+	}
+	iter.head++
+	if iter.skipWhitespacesWithoutLoadMore() {
+		if ret == nil {
+			ret = make([]byte, len(str))
+			copy(ret, str)
+		}
+		if !iter.loadMore() {
+			return
+		}
+	}
+	if ret == nil {
+		return str
+	}
+	return ret
+}

iter_skip.go

@@ -0,0 +1,130 @@
+package jsoniter
+
+import "fmt"
+
+// ReadNil reads a json object as nil and
+// returns whether it's a nil or not
+func (iter *Iterator) ReadNil() (ret bool) {
+	c := iter.nextToken()
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l') // null
+		return true
+	}
+	iter.unreadByte()
+	return false
+}
+
+// ReadBool reads a json object as BoolValue
+func (iter *Iterator) ReadBool() (ret bool) {
+	c := iter.nextToken()
+	if c == 't' {
+		iter.skipThreeBytes('r', 'u', 'e')
+		return true
+	}
+	if c == 'f' {
+		iter.skipFourBytes('a', 'l', 's', 'e')
+		return false
+	}
+	iter.ReportError("ReadBool", "expect t or f, but found "+string([]byte{c}))
+	return
+}
+
+// SkipAndReturnBytes skip next JSON element, and return its content as []byte.
+// The []byte can be kept, it is a copy of data.
+func (iter *Iterator) SkipAndReturnBytes() []byte {
+	iter.startCapture(iter.head)
+	iter.Skip()
+	return iter.stopCapture()
+}
+
+// SkipAndAppendBytes skips next JSON element and appends its content to
+// buffer, returning the result.
+func (iter *Iterator) SkipAndAppendBytes(buf []byte) []byte {
+	iter.startCaptureTo(buf, iter.head)
+	iter.Skip()
+	return iter.stopCapture()
+}
+
+func (iter *Iterator) startCaptureTo(buf []byte, captureStartedAt int) {
+	if iter.captured != nil {
+		panic("already in capture mode")
+	}
+	iter.captureStartedAt = captureStartedAt
+	iter.captured = buf
+}
+
+func (iter *Iterator) startCapture(captureStartedAt int) {
+	iter.startCaptureTo(make([]byte, 0, 32), captureStartedAt)
+}
+
+func (iter *Iterator) stopCapture() []byte {
+	if iter.captured == nil {
+		panic("not in capture mode")
+	}
+	captured := iter.captured
+	remaining := iter.buf[iter.captureStartedAt:iter.head]
+	iter.captureStartedAt = -1
+	iter.captured = nil
+	return append(captured, remaining...)
+}
+
+// Skip skips a json object and positions to relatively the next json object
+func (iter *Iterator) Skip() {
+	c := iter.nextToken()
+	switch c {
+	case '"':
+		iter.skipString()
+	case 'n':
+		iter.skipThreeBytes('u', 'l', 'l') // null
+	case 't':
+		iter.skipThreeBytes('r', 'u', 'e') // true
+	case 'f':
+		iter.skipFourBytes('a', 'l', 's', 'e') // false
+	case '0':
+		iter.unreadByte()
+		iter.ReadFloat32()
+	case '-', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+		iter.skipNumber()
+	case '[':
+		iter.skipArray()
+	case '{':
+		iter.skipObject()
+	default:
+		iter.ReportError("Skip", fmt.Sprintf("do not know how to skip: %v", c))
+		return
+	}
+}
+
+func (iter *Iterator) skipFourBytes(b1, b2, b3, b4 byte) {
+	if iter.readByte() != b1 {
+		iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
+		return
+	}
+	if iter.readByte() != b2 {
+		iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
+		return
+	}
+	if iter.readByte() != b3 {
+		iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
+		return
+	}
+	if iter.readByte() != b4 {
+		iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
+		return
+	}
+}
+
+func (iter *Iterator) skipThreeBytes(b1, b2, b3 byte) {
+	if iter.readByte() != b1 {
+		iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3})))
+		return
+	}
+	if iter.readByte() != b2 {
+		iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3})))
+		return
+	}
+	if iter.readByte() != b3 {
+		iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3})))
+		return
+	}
+}

iter_skip_sloppy.go

@@ -0,0 +1,163 @@
+//+build jsoniter_sloppy
+
+package jsoniter
+
+// sloppy but faster implementation, do not validate the input json
+
+func (iter *Iterator) skipNumber() {
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			c := iter.buf[i]
+			switch c {
+			case ' ', '\n', '\r', '\t', ',', '}', ']':
+				iter.head = i
+				return
+			}
+		}
+		if !iter.loadMore() {
+			return
+		}
+	}
+}
+
+func (iter *Iterator) skipArray() {
+	level := 1
+	if !iter.incrementDepth() {
+		return
+	}
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			switch iter.buf[i] {
+			case '"': // If inside string, skip it
+				iter.head = i + 1
+				iter.skipString()
+				i = iter.head - 1 // it will be i++ soon
+			case '[': // If open symbol, increase level
+				level++
+				if !iter.incrementDepth() {
+					return
+				}
+			case ']': // If close symbol, increase level
+				level--
+				if !iter.decrementDepth() {
+					return
+				}
+
+				// If we have returned to the original level, we're done
+				if level == 0 {
+					iter.head = i + 1
+					return
+				}
+			}
+		}
+		if !iter.loadMore() {
+			iter.ReportError("skipObject", "incomplete array")
+			return
+		}
+	}
+}
+
+func (iter *Iterator) skipObject() {
+	level := 1
+	if !iter.incrementDepth() {
+		return
+	}
+
+	for {
+		for i := iter.head; i < iter.tail; i++ {
+			switch iter.buf[i] {
+			case '"': // If inside string, skip it
+				iter.head = i + 1
+				iter.skipString()
+				i = iter.head - 1 // it will be i++ soon
+			case '{': // If open symbol, increase level
+				level++
+				if !iter.incrementDepth() {
+					return
+				}
+			case '}': // If close symbol, increase level
+				level--
+				if !iter.decrementDepth() {
+					return
+				}
+
+				// If we have returned to the original level, we're done
+				if level == 0 {
+					iter.head = i + 1
+					return
+				}
+			}
+		}
+		if !iter.loadMore() {
+			iter.ReportError("skipObject", "incomplete object")
+			return
+		}
+	}
+}
+
+func (iter *Iterator) skipString() {
+	for {
+		end, escaped := iter.findStringEnd()
+		if end == -1 {
+			if !iter.loadMore() {
+				iter.ReportError("skipString", "incomplete string")
+				return
+			}
+			if escaped {
+				iter.head = 1 // skip the first char as last char read is \
+			}
+		} else {
+			iter.head = end
+			return
+		}
+	}
+}
+
+// adapted from: https://github.com/buger/jsonparser/blob/master/parser.go
+// Tries to find the end of string
+// Support if string contains escaped quote symbols.
+func (iter *Iterator) findStringEnd() (int, bool) {
+	escaped := false
+	for i := iter.head; i < iter.tail; i++ {
+		c := iter.buf[i]
+		if c == '"' {
+			if !escaped {
+				return i + 1, false
+			}
+			j := i - 1
+			for {
+				if j < iter.head || iter.buf[j] != '\\' {
+					// even number of backslashes
+					// either end of buffer, or " found
+					return i + 1, true
+				}
+				j--
+				if j < iter.head || iter.buf[j] != '\\' {
+					// odd number of backslashes
+					// it is \" or \\\"
+					break
+				}
+				j--
+			}
+		} else if c == '\\' {
+			escaped = true
+		}
+	}
+	j := iter.tail - 1
+	for {
+		if j < iter.head || iter.buf[j] != '\\' {
+			// even number of backslashes
+			// either end of buffer, or " found
+			return -1, false // do not end with \
+		}
+		j--
+		if j < iter.head || iter.buf[j] != '\\' {
+			// odd number of backslashes
+			// it is \" or \\\"
+			break
+		}
+		j--
+
+	}
+	return -1, true // end with \
+}

iter_skip_sloppy_test.go

@@ -1,61 +1,64 @@
+//+build jsoniter_sloppy
+
 package jsoniter
 
 import (
-	"testing"
+	"github.com/stretchr/testify/require"
 	"io"
+	"testing"
 )
 
 func Test_string_end(t *testing.T) {
-	end, escaped := ParseString(`abc"`).findStringEnd()
+	end, escaped := ParseString(ConfigDefault, `abc"`).findStringEnd()
 	if end != 4 {
 		t.Fatal(end)
 	}
 	if escaped != false {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`abc\\"`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `abc\\"`).findStringEnd()
 	if end != 6 {
 		t.Fatal(end)
 	}
 	if escaped != true {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`abc\\\\"`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `abc\\\\"`).findStringEnd()
 	if end != 8 {
 		t.Fatal(end)
 	}
 	if escaped != true {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`abc\"`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `abc\"`).findStringEnd()
 	if end != -1 {
 		t.Fatal(end)
 	}
 	if escaped != false {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`abc\`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `abc\`).findStringEnd()
 	if end != -1 {
 		t.Fatal(end)
 	}
 	if escaped != true {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`abc\\`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `abc\\`).findStringEnd()
 	if end != -1 {
 		t.Fatal(end)
 	}
 	if escaped != false {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`\\`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `\\`).findStringEnd()
 	if end != -1 {
 		t.Fatal(end)
 	}
 	if escaped != false {
 		t.Fatal(escaped)
 	}
-	end, escaped = ParseString(`\`).findStringEnd()
+	end, escaped = ParseString(ConfigDefault, `\`).findStringEnd()
 	if end != -1 {
 		t.Fatal(end)
 	}
@@ -89,66 +92,55 @@ func (reader *StagedReader) Read(p []byte) (n int, err error) {
 }
 
 func Test_skip_string(t *testing.T) {
-	iter := ParseString(`"abc`)
+	should := require.New(t)
+	iter := ParseString(ConfigDefault, `"abc`)
 	iter.skipString()
-	if iter.head != 1 {
+	should.Equal(1, iter.head)
-		t.Fatal(iter.head)
+	iter = ParseString(ConfigDefault, `\""abc`)
-	}
-	iter = ParseString(`\""abc`)
 	iter.skipString()
-	if iter.head != 3 {
+	should.Equal(3, iter.head)
-		t.Fatal(iter.head)
-	}
 	reader := &StagedReader{
 		r1: `abc`,
 		r2: `"`,
 	}
-	iter = Parse(reader, 4096)
+	iter = Parse(ConfigDefault, reader, 4096)
 	iter.skipString()
-	if iter.head != 1 {
+	should.Equal(1, iter.head)
-		t.Fatal(iter.head)
-	}
 	reader = &StagedReader{
 		r1: `abc`,
 		r2: `1"`,
 	}
-	iter = Parse(reader, 4096)
+	iter = Parse(ConfigDefault, reader, 4096)
 	iter.skipString()
-	if iter.head != 2 {
+	should.Equal(2, iter.head)
-		t.Fatal(iter.head)
-	}
 	reader = &StagedReader{
 		r1: `abc\`,
 		r2: `"`,
 	}
-	iter = Parse(reader, 4096)
+	iter = Parse(ConfigDefault, reader, 4096)
 	iter.skipString()
-	if iter.Error != io.EOF {
+	should.NotNil(iter.Error)
-		t.Fatal(iter.Error)
-	}
 	reader = &StagedReader{
 		r1: `abc\`,
 		r2: `""`,
 	}
-	iter = Parse(reader, 4096)
+	iter = Parse(ConfigDefault, reader, 4096)
 	iter.skipString()
-	if iter.head != 2 {
+	should.Equal(2, iter.head)
-		t.Fatal(iter.head)
-	}
 }
 
 func Test_skip_object(t *testing.T) {
-	iter := ParseString(`}`)
+	iter := ParseString(ConfigDefault, `}`)
 	iter.skipObject()
 	if iter.head != 1 {
 		t.Fatal(iter.head)
 	}
-	iter = ParseString(`a}`)
+	iter = ParseString(ConfigDefault, `a}`)
 	iter.skipObject()
 	if iter.head != 2 {
 		t.Fatal(iter.head)
 	}
-	iter = ParseString(`{}}a`)
+	iter = ParseString(ConfigDefault, `{}}a`)
 	iter.skipObject()
 	if iter.head != 3 {
 		t.Fatal(iter.head)
@@ -157,12 +149,12 @@ func Test_skip_object(t *testing.T) {
 		r1: `{`,
 		r2: `}}a`,
 	}
-	iter = Parse(reader, 4096)
+	iter = Parse(ConfigDefault, reader, 4096)
 	iter.skipObject()
 	if iter.head != 2 {
 		t.Fatal(iter.head)
 	}
-	iter = ParseString(`"}"}a`)
+	iter = ParseString(ConfigDefault, `"}"}a`)
 	iter.skipObject()
 	if iter.head != 4 {
 		t.Fatal(iter.head)

iter_skip_strict.go

@@ -0,0 +1,99 @@
+//+build !jsoniter_sloppy
+
+package jsoniter
+
+import (
+	"fmt"
+	"io"
+)
+
+func (iter *Iterator) skipNumber() {
+	if !iter.trySkipNumber() {
+		iter.unreadByte()
+		if iter.Error != nil && iter.Error != io.EOF {
+			return
+		}
+		iter.ReadFloat64()
+		if iter.Error != nil && iter.Error != io.EOF {
+			iter.Error = nil
+			iter.ReadBigFloat()
+		}
+	}
+}
+
+func (iter *Iterator) trySkipNumber() bool {
+	dotFound := false
+	for i := iter.head; i < iter.tail; i++ {
+		c := iter.buf[i]
+		switch c {
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+		case '.':
+			if dotFound {
+				iter.ReportError("validateNumber", `more than one dot found in number`)
+				return true // already failed
+			}
+			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
+			}
+			return false // may be invalid
+		}
+	}
+	return false
+}
+
+func (iter *Iterator) skipString() {
+	if !iter.trySkipString() {
+		iter.unreadByte()
+		iter.ReadString()
+	}
+}
+
+func (iter *Iterator) trySkipString() bool {
+	for i := iter.head; i < iter.tail; i++ {
+		c := iter.buf[i]
+		if c == '"' {
+			iter.head = i + 1
+			return true // valid
+		} else if c == '\\' {
+			return false
+		} else if c < ' ' {
+			iter.ReportError("trySkipString",
+				fmt.Sprintf(`invalid control character found: %d`, c))
+			return true // already failed
+		}
+	}
+	return false
+}
+
+func (iter *Iterator) skipObject() {
+	iter.unreadByte()
+	iter.ReadObjectCB(func(iter *Iterator, field string) bool {
+		iter.Skip()
+		return true
+	})
+}
+
+func (iter *Iterator) skipArray() {
+	iter.unreadByte()
+	iter.ReadArrayCB(func(iter *Iterator) bool {
+		iter.Skip()
+		return true
+	})
+}

iter_str.go

@@ -0,0 +1,215 @@
+package jsoniter
+
+import (
+	"fmt"
+	"unicode/utf16"
+)
+
+// ReadString read string from iterator
+func (iter *Iterator) ReadString() (ret string) {
+	c := iter.nextToken()
+	if c == '"' {
+		for i := iter.head; i < iter.tail; i++ {
+			c := iter.buf[i]
+			if c == '"' {
+				ret = string(iter.buf[iter.head:i])
+				iter.head = i + 1
+				return ret
+			} else if c == '\\' {
+				break
+			} else if c < ' ' {
+				iter.ReportError("ReadString",
+					fmt.Sprintf(`invalid control character found: %d`, c))
+				return
+			}
+		}
+		return iter.readStringSlowPath()
+	} else if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		return ""
+	}
+	iter.ReportError("ReadString", `expects " or n, but found `+string([]byte{c}))
+	return
+}
+
+func (iter *Iterator) readStringSlowPath() (ret string) {
+	var str []byte
+	var c byte
+	for iter.Error == nil {
+		c = iter.readByte()
+		if c == '"' {
+			return string(str)
+		}
+		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':
+		r := iter.readU4()
+		if utf16.IsSurrogate(r) {
+			c = iter.readByte()
+			if iter.Error != nil {
+				return nil
+			}
+			if c != '\\' {
+				iter.unreadByte()
+				str = appendRune(str, r)
+				return str
+			}
+			c = iter.readByte()
+			if iter.Error != nil {
+				return nil
+			}
+			if c != 'u' {
+				str = appendRune(str, r)
+				return iter.readEscapedChar(c, str)
+			}
+			r2 := iter.readU4()
+			if iter.Error != nil {
+				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)
+		}
+	case '"':
+		str = append(str, '"')
+	case '\\':
+		str = append(str, '\\')
+	case '/':
+		str = append(str, '/')
+	case 'b':
+		str = append(str, '\b')
+	case 'f':
+		str = append(str, '\f')
+	case 'n':
+		str = append(str, '\n')
+	case 'r':
+		str = append(str, '\r')
+	case 't':
+		str = append(str, '\t')
+	default:
+		iter.ReportError("readEscapedChar",
+			`invalid escape char after \`)
+		return nil
+	}
+	return str
+}
+
+// ReadStringAsSlice read string from iterator without copying into string form.
+// The []byte can not be kept, as it will change after next iterator call.
+func (iter *Iterator) ReadStringAsSlice() (ret []byte) {
+	c := iter.nextToken()
+	if c == '"' {
+		for i := iter.head; i < iter.tail; i++ {
+			// require ascii string and no escape
+			// for: field name, base64, number
+			if iter.buf[i] == '"' {
+				// fast path: reuse the underlying buffer
+				ret = iter.buf[iter.head:i]
+				iter.head = i + 1
+				return ret
+			}
+		}
+		readLen := iter.tail - iter.head
+		copied := make([]byte, readLen, readLen*2)
+		copy(copied, iter.buf[iter.head:iter.tail])
+		iter.head = iter.tail
+		for iter.Error == nil {
+			c := iter.readByte()
+			if c == '"' {
+				return copied
+			}
+			copied = append(copied, c)
+		}
+		return copied
+	}
+	iter.ReportError("ReadStringAsSlice", `expects " or n, but found `+string([]byte{c}))
+	return
+}
+
+func (iter *Iterator) readU4() (ret rune) {
+	for i := 0; i < 4; i++ {
+		c := iter.readByte()
+		if iter.Error != nil {
+			return
+		}
+		if c >= '0' && c <= '9' {
+			ret = ret*16 + rune(c-'0')
+		} else if c >= 'a' && c <= 'f' {
+			ret = ret*16 + rune(c-'a'+10)
+		} else if c >= 'A' && c <= 'F' {
+			ret = ret*16 + rune(c-'A'+10)
+		} else {
+			iter.ReportError("readU4", "expects 0~9 or a~f, but found "+string([]byte{c}))
+			return
+		}
+	}
+	return ret
+}
+
+const (
+	t1 = 0x00 // 0000 0000
+	tx = 0x80 // 1000 0000
+	t2 = 0xC0 // 1100 0000
+	t3 = 0xE0 // 1110 0000
+	t4 = 0xF0 // 1111 0000
+	t5 = 0xF8 // 1111 1000
+
+	maskx = 0x3F // 0011 1111
+	mask2 = 0x1F // 0001 1111
+	mask3 = 0x0F // 0000 1111
+	mask4 = 0x07 // 0000 0111
+
+	rune1Max = 1<<7 - 1
+	rune2Max = 1<<11 - 1
+	rune3Max = 1<<16 - 1
+
+	surrogateMin = 0xD800
+	surrogateMax = 0xDFFF
+
+	maxRune   = '\U0010FFFF' // Maximum valid Unicode code point.
+	runeError = '\uFFFD'     // the "error" Rune or "Unicode replacement character"
+)
+
+func appendRune(p []byte, r rune) []byte {
+	// Negative values are erroneous. Making it unsigned addresses the problem.
+	switch i := uint32(r); {
+	case i <= rune1Max:
+		p = append(p, byte(r))
+		return p
+	case i <= rune2Max:
+		p = append(p, t2|byte(r>>6))
+		p = append(p, tx|byte(r)&maskx)
+		return p
+	case i > maxRune, surrogateMin <= i && i <= surrogateMax:
+		r = runeError
+		fallthrough
+	case i <= rune3Max:
+		p = append(p, t3|byte(r>>12))
+		p = append(p, tx|byte(r>>6)&maskx)
+		p = append(p, tx|byte(r)&maskx)
+		return p
+	default:
+		p = append(p, t4|byte(r>>18))
+		p = append(p, tx|byte(r>>12)&maskx)
+		p = append(p, tx|byte(r>>6)&maskx)
+		p = append(p, tx|byte(r)&maskx)
+		return p
+	}
+}

jsoniter.go

@@ -1,916 +1,18 @@
+// Package jsoniter implements encoding and decoding of JSON as defined in
+// RFC 4627 and provides interfaces with identical syntax of standard lib encoding/json.
+// Converting from encoding/json to jsoniter is no more than replacing the package with jsoniter
+// and variable type declarations (if any).
+// jsoniter interfaces gives 100% compatibility with code using standard lib.
+//
+// "JSON and Go"
+// (https://golang.org/doc/articles/json_and_go.html)
+// gives a description of how Marshal/Unmarshal operate
+// between arbitrary or predefined json objects and bytes,
+// and it applies to jsoniter.Marshal/Unmarshal as well.
+//
+// Besides, jsoniter.Iterator provides a different set of interfaces
+// iterating given bytes/string/reader
+// and yielding parsed elements one by one.
+// This set of interfaces reads input as required and gives
+// better performance.
 package jsoniter
-
-import (
-	"io"
-	"fmt"
-	"unicode/utf16"
-	"strconv"
-	"unsafe"
-	"encoding/base64"
-)
-
-type ValueType int
-
-const (
-	Invalid ValueType = iota
-	String
-	Number
-	Null
-	Bool
-	Array
-	Object
-)
-
-var digits []byte
-var valueTypes []ValueType
-
-func init() {
-	digits = make([]byte, 256)
-	for i := 0; i < len(digits); i++ {
-		digits[i] = 255
-	}
-	for i := '0'; i <= '9'; i++ {
-		digits[i] = byte(i - '0');
-	}
-	for i := 'a'; i <= 'f'; i++ {
-		digits[i] = byte((i - 'a') + 10);
-	}
-	for i := 'A'; i <= 'F'; i++ {
-		digits[i] = byte((i - 'A') + 10);
-	}
-	valueTypes = make([]ValueType, 256)
-	for i := 0; i < len(valueTypes); i++ {
-		valueTypes[i] = Invalid
-	}
-	valueTypes['"'] = String;
-	valueTypes['-'] = Number;
-	valueTypes['0'] = Number;
-	valueTypes['1'] = Number;
-	valueTypes['2'] = Number;
-	valueTypes['3'] = Number;
-	valueTypes['4'] = Number;
-	valueTypes['5'] = Number;
-	valueTypes['6'] = Number;
-	valueTypes['7'] = Number;
-	valueTypes['8'] = Number;
-	valueTypes['9'] = Number;
-	valueTypes['t'] = Bool;
-	valueTypes['f'] = Bool;
-	valueTypes['n'] = Null;
-	valueTypes['['] = Array;
-	valueTypes['{'] = Object;
-}
-
-type Iterator struct {
-	reader io.Reader
-	buf    []byte
-	head   int
-	tail   int
-	Error  error
-}
-
-func Parse(reader io.Reader, bufSize int) *Iterator {
-	iter := &Iterator{
-		reader: reader,
-		buf: make([]byte, bufSize),
-		head: 0,
-		tail: 0,
-	}
-	iter.skipWhitespaces()
-	return iter
-}
-
-func ParseBytes(input []byte) *Iterator {
-	iter := &Iterator{
-		reader: nil,
-		buf: input,
-		head: 0,
-		tail: len(input),
-	}
-	iter.skipWhitespaces()
-	return iter
-}
-
-func ParseString(input string) *Iterator {
-	return ParseBytes([]byte(input))
-}
-
-func (iter *Iterator) Reset(reader io.Reader) *Iterator {
-	iter.reader = reader
-	iter.head = 0
-	iter.tail = 0
-	iter.skipWhitespaces()
-	return iter
-}
-
-func (iter *Iterator) ResetBytes(input []byte) *Iterator {
-	// only for benchmarking
-	iter.reader = nil
-	iter.Error = nil
-	iter.buf = input
-	iter.head = 0
-	iter.tail = len(input)
-	iter.skipWhitespaces()
-	return iter
-}
-
-func (iter *Iterator) WhatIsNext() ValueType {
-	valueType := valueTypes[iter.readByte()];
-	iter.unreadByte();
-	return valueType;
-}
-
-func (iter *Iterator) skipWhitespaces() {
-	for {
-		for i := iter.head; i < iter.tail; i++ {
-			c := iter.buf[i]
-			switch c {
-			case ' ', '\n', '\t', '\r':
-				continue
-			}
-			iter.head = i
-			return
-		}
-		if !iter.loadMore() {
-			return
-		}
-	}
-}
-
-func (iter *Iterator) skipWhitespacesWithoutLoadMore() bool {
-	for i := iter.head; i < iter.tail; i++ {
-		c := iter.buf[i]
-		switch c {
-		case ' ', '\n', '\t', '\r':
-			continue
-		}
-		iter.head = i
-		return false
-	}
-	return true
-}
-
-func (iter *Iterator) nextToken() byte {
-	// a variation of skip whitespaces, returning the next non-whitespace token
-	for {
-		for i := iter.head; i < iter.tail; i++ {
-			c := iter.buf[i]
-			switch c {
-			case ' ', '\n', '\t', 'r':
-				continue
-			}
-			iter.head = i+1
-			return c
-		}
-		if !iter.loadMore() {
-			return 0
-		}
-	}
-}
-
-func (iter *Iterator) ReportError(operation string, msg string) {
-	if iter.Error != nil {
-		return
-	}
-	peekStart := iter.head - 10
-	if peekStart < 0 {
-		peekStart = 0
-	}
-	iter.Error = fmt.Errorf("%s: %s, parsing %v ...%s... at %s", operation, msg, iter.head,
-		string(iter.buf[peekStart: iter.head]), string(iter.buf[0:iter.tail]))
-}
-
-func (iter *Iterator) CurrentBuffer() string {
-	peekStart := iter.head - 10
-	if peekStart < 0 {
-		peekStart = 0
-	}
-	return fmt.Sprintf("parsing %v ...|%s|... at %s", iter.head,
-		string(iter.buf[peekStart: iter.head]), string(iter.buf[0:iter.tail]))
-}
-
-func (iter *Iterator) readByte() (ret byte) {
-	if iter.head == iter.tail {
-		if iter.loadMore() {
-			ret = iter.buf[iter.head]
-			iter.head++
-			return ret
-		} else {
-			return 0
-		}
-	}
-	ret = iter.buf[iter.head]
-	iter.head++
-	return ret
-}
-
-func (iter *Iterator) loadMore() bool {
-	if iter.reader == nil {
-		iter.Error = io.EOF
-		return false
-	}
-	for {
-		n, err := iter.reader.Read(iter.buf)
-		if n == 0 {
-			if err != nil {
-				iter.Error = err
-				return false
-			} else {
-				// n == 0, err == nil is not EOF
-				continue
-			}
-		} else {
-			iter.head = 0
-			iter.tail = n
-			return true
-		}
-	}
-}
-
-func (iter *Iterator) unreadByte() {
-	if iter.head == 0 {
-		iter.ReportError("unreadByte", "unread too many bytes")
-		return
-	}
-	iter.head -= 1
-	return
-}
-
-const maxUint64 = (1 << 64 - 1)
-const cutoffUint64 = maxUint64 / 10 + 1
-const maxUint32 = (1 << 32 - 1)
-const cutoffUint32 = maxUint32 / 10 + 1
-
-func (iter *Iterator) ReadUint() (ret uint) {
-	val := iter.ReadUint64()
-	converted := uint(val)
-	if uint64(converted) != val {
-		iter.ReportError("ReadUint", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadUint8() (ret uint8) {
-	val := iter.ReadUint64()
-	converted := uint8(val)
-	if uint64(converted) != val {
-		iter.ReportError("ReadUint8", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadUint16() (ret uint16) {
-	val := iter.ReadUint64()
-	converted := uint16(val)
-	if uint64(converted) != val {
-		iter.ReportError("ReadUint16", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadUint32() (ret uint32) {
-	val := iter.ReadUint64()
-	converted := uint32(val)
-	if uint64(converted) != val {
-		iter.ReportError("ReadUint32", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadUint64() (ret uint64) {
-	c := iter.readByte()
-	v := digits[c]
-	if v == 0 {
-		return 0 // single zero
-	}
-	if v == 255 {
-		iter.ReportError("ReadUint64", "unexpected character")
-		return
-	}
-	for {
-		if ret >= cutoffUint64 {
-			iter.ReportError("ReadUint64", "overflow")
-			return
-		}
-		ret = ret * 10 + uint64(v)
-		c = iter.readByte()
-		v = digits[c]
-		if v == 255 {
-			iter.unreadByte()
-			break
-		}
-	}
-	return ret
-}
-
-func (iter *Iterator) ReadInt() (ret int) {
-	val := iter.ReadInt64()
-	converted := int(val)
-	if int64(converted) != val {
-		iter.ReportError("ReadInt", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadInt8() (ret int8) {
-	val := iter.ReadInt64()
-	converted := int8(val)
-	if int64(converted) != val {
-		iter.ReportError("ReadInt8", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadInt16() (ret int16) {
-	val := iter.ReadInt64()
-	converted := int16(val)
-	if int64(converted) != val {
-		iter.ReportError("ReadInt16", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadInt32() (ret int32) {
-	val := iter.ReadInt64()
-	converted := int32(val)
-	if int64(converted) != val {
-		iter.ReportError("ReadInt32", "int overflow")
-		return
-	}
-	return converted
-}
-
-func (iter *Iterator) ReadInt64() (ret int64) {
-	c := iter.readByte()
-	if iter.Error != nil {
-		return
-	}
-
-	/* optional leading minus */
-	if c == '-' {
-		n := iter.ReadUint64()
-		return -int64(n)
-	} else {
-		iter.unreadByte()
-		n := iter.ReadUint64()
-		return int64(n)
-	}
-}
-
-func (iter *Iterator) ReadString() (ret string) {
-	return string(iter.readStringAsBytes())
-}
-
-
-func (iter *Iterator) readStringAsBytes() (ret []byte) {
-	c := iter.readByte()
-	if c == 'n' {
-		iter.skipUntilBreak()
-		return
-	}
-	if c != '"' {
-		iter.ReportError("ReadString", `expects " or n`)
-		return
-	}
-	end := iter.findStringEndWithoutEscape()
-	if end != -1 {
-		// fast path: reuse the underlying buffer
-		ret = iter.buf[iter.head:end-1]
-		iter.head = end
-		return ret
-	}
-	str := make([]byte, 0, 8)
-	for iter.Error == nil {
-		c = iter.readByte()
-		if c == '"' {
-			return str
-		}
-		if c == '\\' {
-			c = iter.readByte()
-			if iter.Error != nil {
-				return
-			}
-			switch c {
-			case 'u':
-				r := iter.readU4()
-				if iter.Error != nil {
-					return
-				}
-				if utf16.IsSurrogate(r) {
-					c = iter.readByte()
-					if iter.Error != nil {
-						return
-					}
-					if c != '\\' {
-						iter.ReportError("ReadString",
-							`expects \u after utf16 surrogate, but \ not found`)
-						return
-					}
-					c = iter.readByte()
-					if iter.Error != nil {
-						return
-					}
-					if c != 'u' {
-						iter.ReportError("ReadString",
-							`expects \u after utf16 surrogate, but \u not found`)
-						return
-					}
-					r2 := iter.readU4()
-					if iter.Error != nil {
-						return
-					}
-					combined := utf16.DecodeRune(r, r2)
-					str = appendRune(str, combined)
-				} else {
-					str = appendRune(str, r)
-				}
-			case '"':
-				str = append(str, '"')
-			case '\\':
-				str = append(str, '\\')
-			case '/':
-				str = append(str, '/')
-			case 'b':
-				str = append(str, '\b')
-			case 'f':
-				str = append(str, '\f')
-			case 'n':
-				str = append(str, '\n')
-			case 'r':
-				str = append(str, '\r')
-			case 't':
-				str = append(str, '\t')
-			default:
-				iter.ReportError("ReadString",
-					`invalid escape char after \`)
-				return
-			}
-		} else {
-			str = append(str, c)
-		}
-	}
-	return
-}
-
-func (iter *Iterator) readU4() (ret rune) {
-	for i := 0; i < 4; i++ {
-		c := iter.readByte()
-		if iter.Error != nil {
-			return
-		}
-		if (c >= '0' && c <= '9') {
-			if ret >= cutoffUint32 {
-				iter.ReportError("readU4", "overflow")
-				return
-			}
-			ret = ret * 16 + rune(c - '0')
-		} else if ((c >= 'a' && c <= 'f') ) {
-			if ret >= cutoffUint32 {
-				iter.ReportError("readU4", "overflow")
-				return
-			}
-			ret = ret * 16 + rune(c - 'a' + 10)
-		} else {
-			iter.ReportError("readU4", "expects 0~9 or a~f")
-			return
-		}
-	}
-	return ret
-}
-
-const (
-	t1 = 0x00 // 0000 0000
-	tx = 0x80 // 1000 0000
-	t2 = 0xC0 // 1100 0000
-	t3 = 0xE0 // 1110 0000
-	t4 = 0xF0 // 1111 0000
-	t5 = 0xF8 // 1111 1000
-
-	maskx = 0x3F // 0011 1111
-	mask2 = 0x1F // 0001 1111
-	mask3 = 0x0F // 0000 1111
-	mask4 = 0x07 // 0000 0111
-
-	rune1Max = 1 << 7 - 1
-	rune2Max = 1 << 11 - 1
-	rune3Max = 1 << 16 - 1
-
-	surrogateMin = 0xD800
-	surrogateMax = 0xDFFF
-
-	MaxRune = '\U0010FFFF' // Maximum valid Unicode code point.
-	RuneError = '\uFFFD'     // the "error" Rune or "Unicode replacement character"
-)
-
-func appendRune(p []byte, r rune) []byte {
-	// Negative values are erroneous. Making it unsigned addresses the problem.
-	switch i := uint32(r); {
-	case i <= rune1Max:
-		p = append(p, byte(r))
-		return p
-	case i <= rune2Max:
-		p = append(p, t2 | byte(r >> 6))
-		p = append(p, tx | byte(r) & maskx)
-		return p
-	case i > MaxRune, surrogateMin <= i && i <= surrogateMax:
-		r = RuneError
-		fallthrough
-	case i <= rune3Max:
-		p = append(p, t3 | byte(r >> 12))
-		p = append(p, tx | byte(r >> 6) & maskx)
-		p = append(p, tx | byte(r) & maskx)
-		return p
-	default:
-		p = append(p, t4 | byte(r >> 18))
-		p = append(p, tx | byte(r >> 12) & maskx)
-		p = append(p, tx | byte(r >> 6) & maskx)
-		p = append(p, tx | byte(r) & maskx)
-		return p
-	}
-}
-
-func (iter *Iterator) ReadArray() (ret bool) {
-	c := iter.nextToken()
-	if iter.Error != nil {
-		return
-	}
-	switch c {
-	case 'n': {
-		iter.skipUntilBreak()
-		return false // null
-	}
-	case '[': {
-		c = iter.nextToken()
-		if iter.Error != nil {
-			return
-		}
-		if c == ']' {
-			return false
-		} else {
-			iter.unreadByte()
-			return true
-		}
-	}
-	case ']': return false
-	case ',':
-		iter.skipWhitespaces()
-		return true
-	default:
-		iter.ReportError("ReadArray", "expect [ or , or ] or n")
-		return
-	}
-}
-
-func (iter *Iterator) ReadObject() (ret string) {
-	c := iter.nextToken()
-	if iter.Error != nil {
-		return
-	}
-	switch c {
-	case 'n': {
-		iter.skipUntilBreak()
-		if iter.Error != nil {
-			return
-		}
-		return "" // null
-	}
-	case '{': {
-		c = iter.nextToken()
-		if iter.Error != nil {
-			return
-		}
-		switch c {
-		case '}':
-			return "" // end of object
-		case '"':
-			iter.unreadByte()
-			return iter.readObjectField()
-		default:
-			iter.ReportError("ReadObject", `expect " after {`)
-			return
-		}
-	}
-	case ',':
-		iter.skipWhitespaces()
-		return iter.readObjectField()
-	case '}':
-		return "" // end of object
-	default:
-		iter.ReportError("ReadObject", `expect { or , or } or n`)
-		return
-	}
-}
-
-func (iter *Iterator) readObjectField() (ret string) {
-	str := iter.readStringAsBytes()
-	if iter.skipWhitespacesWithoutLoadMore() {
-		if ret == "" {
-			ret = string(str);
-		}
-		if !iter.loadMore() {
-			return
-		}
-	}
-	if iter.buf[iter.head] != ':' {
-		iter.ReportError("ReadObject", "expect : after object field")
-		return
-	}
-	iter.head++
-	if iter.skipWhitespacesWithoutLoadMore() {
-		if ret == "" {
-			ret = string(str);
-		}
-		if !iter.loadMore() {
-			return
-		}
-	}
-	if ret == "" {
-		return *(*string)(unsafe.Pointer(&str))
-	}
-	return ret
-}
-
-func (iter *Iterator) ReadFloat32() (ret float32) {
-	strBuf := [8]byte{}
-	str := strBuf[0:0]
-	hasMore := true
-	for(hasMore) {
-		for i := iter.head; i < iter.tail; i++ {
-			c := iter.buf[i]
-			switch c {
-			case '-', '+', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
-				str = append(str, c)
-				continue
-			default:
-				hasMore = false
-				break
-			}
-		}
-		if hasMore {
-			if !iter.loadMore() {
-				break
-			}
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		return
-	}
-	val, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&str)), 32)
-	if err != nil {
-		iter.Error = err
-		return
-	}
-	return float32(val)
-}
-
-func (iter *Iterator) ReadFloat64() (ret float64) {
-	strBuf := [8]byte{}
-	str := strBuf[0:0]
-	hasMore := true
-	for(hasMore) {
-		for i := iter.head; i < iter.tail; i++ {
-			c := iter.buf[i]
-			switch c {
-			case '-', '+', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
-				str = append(str, c)
-				continue
-			default:
-				hasMore = false
-				break
-			}
-		}
-		if hasMore {
-			if !iter.loadMore() {
-				break
-			}
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		return
-	}
-	val, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&str)), 64)
-	if err != nil {
-		iter.Error = err
-		return
-	}
-	return val
-}
-
-func (iter *Iterator) ReadBool() (ret bool) {
-	c := iter.readByte()
-	if iter.Error != nil {
-		return
-	}
-	switch c {
-	case 't':
-		iter.skipUntilBreak()
-		return true
-	case 'f':
-		iter.skipUntilBreak()
-		return false
-	default:
-		iter.ReportError("ReadBool", "expect t or f")
-		return
-	}
-}
-
-func (iter *Iterator) ReadBase64() (ret []byte) {
-	src := iter.readStringAsBytes()
-	if iter.Error != nil {
-		return
-	}
-	b64 := base64.StdEncoding
-	ret = make([]byte, b64.DecodedLen(len(src)))
-	n, err := b64.Decode(ret, src)
-	if err != nil {
-		iter.Error = err
-		return
-	}
-	return ret[:n]
-}
-
-func (iter *Iterator) ReadNull() (ret bool) {
-	c := iter.readByte()
-	if c == 'n' {
-		iter.skipUntilBreak()
-		return true
-	}
-	iter.unreadByte()
-	return false
-}
-
-func (iter *Iterator) Skip() {
-	c := iter.readByte()
-	switch c {
-	case '"':
-		iter.skipString()
-	case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 't', 'f', 'n':
-		iter.skipUntilBreak()
-	case '[':
-		iter.skipArray()
-	case '{':
-		iter.skipObject()
-	default:
-		iter.ReportError("Skip", fmt.Sprintf("do not know how to skip: %v", c))
-		return
-	}
-}
-
-func (iter *Iterator) skipString() {
-	for {
-		end, escaped := iter.findStringEnd()
-		if end == -1 {
-			if !iter.loadMore() {
-				return
-			}
-			if escaped {
-				iter.head = 1 // skip the first char as last char read is \
-			}
-		} else {
-			iter.head = end
-			return
-		}
-	}
-}
-
-
-// adapted from: https://github.com/buger/jsonparser/blob/master/parser.go
-// Tries to find the end of string
-// Support if string contains escaped quote symbols.
-func (iter *Iterator) findStringEnd() (int, bool) {
-	escaped := false
-	for i := iter.head; i < iter.tail; i++ {
-		c := iter.buf[i]
-		if c == '"' {
-			if !escaped {
-				return i + 1, false
-			} else {
-				j := i - 1
-				for {
-					if j < iter.head || iter.buf[j] != '\\' {
-						// even number of backslashes
-						// either end of buffer, or " found
-						return i + 1, true
-					}
-					j--
-					if j < iter.head || iter.buf[j] != '\\' {
-						// odd number of backslashes
-						// it is \" or \\\"
-						break
-					}
-					j--
-				}
-			}
-		} else if c == '\\' {
-			escaped = true
-		}
-	}
-	j := iter.tail - 1
-	for {
-		if j < iter.head || iter.buf[j] != '\\' {
-			// even number of backslashes
-			// either end of buffer, or " found
-			return -1, false // do not end with \
-		}
-		j--
-		if j < iter.head || iter.buf[j] != '\\' {
-			// odd number of backslashes
-			// it is \" or \\\"
-			break
-		}
-		j--
-
-	}
-	return -1, true // end with \
-}
-
-
-func (iter *Iterator) findStringEndWithoutEscape() int {
-	for i := iter.head; i < iter.tail; i++ {
-		c := iter.buf[i]
-		if c == '"' {
-			return i + 1
-		} else if c == '\\' {
-			return -1
-		}
-	}
-	return -1
-}
-
-func (iter *Iterator) skipArray() {
-	level := 1
-	for {
-		for i := iter.head; i < iter.tail; i++ {
-			switch iter.buf[i] {
-			case '"': // If inside string, skip it
-				iter.head = i + 1
-				iter.skipString()
-				i = iter.head - 1 // it will be i++ soon
-			case '[': // If open symbol, increase level
-				level++
-			case ']': // If close symbol, increase level
-				level--
-
-				// If we have returned to the original level, we're done
-				if level == 0 {
-					iter.head = i + 1
-					return
-				}
-			}
-		}
-		if (!iter.loadMore()) {
-			return
-		}
-	}
-}
-
-func (iter *Iterator) skipObject() {
-	level := 1
-	for {
-		for i := iter.head; i < iter.tail; i++ {
-			switch iter.buf[i] {
-			case '"': // If inside string, skip it
-				iter.head = i + 1
-				iter.skipString()
-				i = iter.head - 1 // it will be i++ soon
-			case '{': // If open symbol, increase level
-				level++
-			case '}': // If close symbol, increase level
-				level--
-
-				// If we have returned to the original level, we're done
-				if level == 0 {
-					iter.head = i + 1
-					return
-				}
-			}
-		}
-		if (!iter.loadMore()) {
-			return
-		}
-	}
-}
-
-func (iter *Iterator) skipUntilBreak() {
-	// true, false, null, number
-	for {
-		for i := iter.head; i < iter.tail; i++ {
-			c := iter.buf[i]
-			switch c {
-			case ' ', '\n', '\r', '\t', ',', '}', ']':
-				iter.head = i
-				return
-			}
-		}
-		if (!iter.loadMore()) {
-			return
-		}
-	}
-}

jsoniter_adapter.go

@@ -1,14 +0,0 @@
-package jsoniter
-
-import "io"
-
-// adapt to json/encoding api
-
-func Unmarshal(data []byte, v interface{}) error {
-	iter := ParseBytes(data)
-	iter.Read(v)
-	if iter.Error == io.EOF {
-		return nil
-	}
-	return iter.Error
-}

jsoniter_any_test.go

@@ -1,39 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"fmt"
-)
-
-func Test_read_string_as_any(t *testing.T) {
-	iter := ParseString(`[1, {"hello": "world"}, 2]`)
-	any := iter.ReadAny()
-	if any.ToString(1, "hello") != "world" {
-		t.FailNow()
-	}
-}
-
-func Test_read_float64_as_any(t *testing.T) {
-	iter := ParseString(`1.23`)
-	any := iter.ReadAny()
-	if any.ToFloat32() != 1.23 {
-		t.FailNow()
-	}
-}
-
-func Test_read_int_as_any(t *testing.T) {
-	iter := ParseString(`123`)
-	any := iter.ReadAny()
-	if any.ToFloat32() != 123 {
-		t.FailNow()
-	}
-}
-
-func Test_read_any_from_nested(t *testing.T) {
-	iter := ParseString(`{"numbers": ["1", "2", ["3", "4"]]}`)
-	val := iter.ReadAny()
-	if val.ToInt("numbers", 2, 0) != 3 {
-		fmt.Println(val.Error)
-		t.FailNow()
-	}
-}

jsoniter_array_test.go

@@ -1,138 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"encoding/json"
-)
-
-func Test_empty_array(t *testing.T) {
-	iter := ParseString(`[]`)
-	cont := iter.ReadArray()
-	if cont != false {
-		t.FailNow()
-	}
-}
-
-func Test_one_element(t *testing.T) {
-	iter := ParseString(`[1]`)
-	cont := iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadInt64() != 1 {
-		t.FailNow()
-	}
-	cont = iter.ReadArray()
-	if cont != false {
-		t.FailNow()
-	}
-}
-
-func Test_two_elements(t *testing.T) {
-	iter := ParseString(`[1,2]`)
-	cont := iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadInt64() != 1 {
-		t.FailNow()
-	}
-	cont = iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadInt64() != 2 {
-		t.FailNow()
-	}
-	cont = iter.ReadArray()
-	if cont != false {
-		t.FailNow()
-	}
-}
-
-func Test_invalid_array(t *testing.T) {
-	iter := ParseString(`[`)
-	iter.ReadArray()
-	if iter.Error == nil {
-		t.FailNow()
-	}
-}
-
-func Test_whitespace_in_head(t *testing.T) {
-	iter := ParseString(` [1]`)
-	cont := iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadUint64() != 1 {
-		t.FailNow()
-	}
-}
-
-func Test_whitespace_after_array_start(t *testing.T) {
-	iter := ParseString(`[ 1]`)
-	cont := iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadUint64() != 1 {
-		t.FailNow()
-	}
-}
-
-func Test_whitespace_before_array_end(t *testing.T) {
-	iter := ParseString(`[1 ]`)
-	cont := iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadUint64() != 1 {
-		t.FailNow()
-	}
-	cont = iter.ReadArray()
-	if cont != false {
-		t.FailNow()
-	}
-}
-
-func Test_whitespace_before_comma(t *testing.T) {
-	iter := ParseString(`[1 ,2]`)
-	cont := iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadUint64() != 1 {
-		t.FailNow()
-	}
-	cont = iter.ReadArray()
-	if cont != true {
-		t.FailNow()
-	}
-	if iter.ReadUint64() != 2 {
-		t.FailNow()
-	}
-	cont = iter.ReadArray()
-	if cont != false {
-		t.FailNow()
-	}
-}
-
-func Benchmark_jsoniter_array(b *testing.B) {
-	b.ReportAllocs()
-	input := []byte(`[1,2,3,4,5,6,7,8,9]`)
-	iter := ParseBytes(input)
-	b.ResetTimer()
-	for n := 0; n < b.N; n++ {
-		iter.ResetBytes(input)
-		for iter.ReadArray() {
-			iter.ReadUint64()
-		}
-	}
-}
-
-func Benchmark_json_array(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		result := []interface{}{}
-		json.Unmarshal([]byte(`[1,2,3]`), &result)
-	}
-}

jsoniter_bool_test.go

@@ -1,17 +0,0 @@
-package jsoniter
-
-import "testing"
-
-func Test_true(t *testing.T) {
-	iter := ParseString(`true`)
-	if iter.ReadBool() != true {
-		t.FailNow()
-	}
-}
-
-func Test_false(t *testing.T) {
-	iter := ParseString(`false`)
-	if iter.ReadBool() != false {
-		t.FailNow()
-	}
-}

jsoniter_customize_test.go

@@ -1,65 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"time"
-	"unsafe"
-	"strconv"
-	"reflect"
-)
-
-func Test_customize_type_decoder(t *testing.T) {
-	RegisterTypeDecoder("time.Time", func(ptr unsafe.Pointer, iter *Iterator) {
-		t, err := time.ParseInLocation("2006-01-02 15:04:05", iter.ReadString(), time.UTC)
-		if err != nil {
-			iter.Error = err
-			return
-		}
-		*((*time.Time)(ptr)) = t
-	})
-	defer ClearDecoders()
-	val := time.Time{}
-	err := Unmarshal([]byte(`"2016-12-05 08:43:28"`), &val)
-	if err != nil {
-		t.Fatal(err)
-	}
-	year, month, day := val.Date()
-	if year != 2016 || month != 12 || day != 5 {
-		t.Fatal(val)
-	}
-}
-
-type Tom struct {
-	field1 string
-}
-
-func Test_customize_field_decoder(t *testing.T) {
-	RegisterFieldDecoder("jsoniter.Tom", "field1", func(ptr unsafe.Pointer, iter *Iterator) {
-		*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
-	})
-	defer ClearDecoders()
-	tom := Tom{}
-	err := Unmarshal([]byte(`{"field1": 100}`), &tom)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func Test_customize_field_decoder_factory(t *testing.T) {
-	RegisterFieldCustomizer(func(type_ reflect.Type, field *reflect.StructField) ([]string, DecoderFunc) {
-		if (type_.String() == "jsoniter.Tom" && field.Name == "field1") {
-			return []string{"field-1"}, func(ptr unsafe.Pointer, iter *Iterator) {
-				*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
-			}
-		}
-		return nil, nil
-	})
-	tom := Tom{}
-	err := Unmarshal([]byte(`{"field-1": 100}`), &tom)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if tom.field1 != "100" {
-		t.Fatal(tom.field1)
-	}
-}

jsoniter_demo_test.go

@@ -1,56 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"fmt"
-)
-
-func Test_bind_api_demo(t *testing.T) {
-	iter := ParseString(`[0,1,2,3]`)
-	val := []int{}
-	iter.Read(&val)
-	fmt.Println(val[3])
-}
-
-func Test_any_api_demo(t *testing.T) {
-	iter := ParseString(`[0,1,2,3]`)
-	val := iter.ReadAny()
-	fmt.Println(val.Get(3))
-}
-
-func Test_iterator_api_demo(t *testing.T) {
-	iter := ParseString(`[0,1,2,3]`)
-	total := 0
-	for iter.ReadArray() {
-		total += iter.ReadInt()
-	}
-	fmt.Println(total)
-}
-
-type ABC struct {
-	a Any
-}
-
-func Test_deep_nested_any_api(t *testing.T) {
-	iter := ParseString(`{"a": {"b": {"c": "d"}}}`)
-	abc := &ABC{}
-	iter.Read(&abc)
-	fmt.Println(abc.a.Get("b", "c"))
-}
-
-type User struct {
-	userId int
-	name string
-	tags []string
-}
-
-func Test_iterator_and_bind_api(t *testing.T) {
-	iter := ParseString(`[123, {"name": "taowen", "tags": ["crazy", "hacker"]}]`)
-	user := User{}
-	iter.ReadArray()
-	user.userId = iter.ReadInt()
-	iter.ReadArray()
-	iter.Read(&user)
-	iter.ReadArray() // array end
-	fmt.Println(user)
-}

jsoniter_float_test.go

@@ -1,47 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"encoding/json"
-	"fmt"
-)
-
-func Test_float64_0(t *testing.T) {
-	iter := ParseString(`0`)
-	val := iter.ReadFloat64()
-	if val != 0 {
-		t.Fatal(val)
-	}
-}
-
-func Test_float64_1_dot_1(t *testing.T) {
-	iter := ParseString(`1.1`)
-	val := iter.ReadFloat64()
-	if val != 1.1 {
-		t.Fatal(val)
-	}
-}
-
-func Test_float32_1_dot_1_comma(t *testing.T) {
-	iter := ParseString(`1.1,`)
-	val := iter.ReadFloat32()
-	if val != 1.1 {
-		fmt.Println(iter.Error)
-		t.Fatal(val)
-	}
-}
-
-func Benchmark_jsoniter_float(b *testing.B) {
-	b.ReportAllocs()
-	for n := 0; n < b.N; n++ {
-		iter := ParseString(`1.1111111111`)
-		iter.ReadFloat64()
-	}
-}
-
-func Benchmark_json_float(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		result := float64(0)
-		json.Unmarshal([]byte(`1.1`), &result)
-	}
-}

jsoniter_int_test.go

@@ -1,83 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"bytes"
-	"encoding/json"
-)
-
-func Test_uint64_0(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("0"), 4096)
-	val := iter.ReadUint64()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != 0 {
-		t.Fatal(val)
-	}
-}
-
-func Test_uint64_1(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("1"), 4096)
-	val := iter.ReadUint64()
-	if val != 1 {
-		t.Fatal(val)
-	}
-}
-
-func Test_uint64_100(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("100"), 4096)
-	val := iter.ReadUint64()
-	if val != 100 {
-		t.Fatal(val)
-	}
-}
-
-func Test_uint64_100_comma(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("100,"), 4096)
-	val := iter.ReadUint64()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != 100 {
-		t.Fatal(val)
-	}
-}
-
-func Test_uint64_invalid(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(","), 4096)
-	iter.ReadUint64()
-	if iter.Error == nil {
-		t.FailNow()
-	}
-}
-
-func Test_int64_100(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("100"), 4096)
-	val := iter.ReadInt64()
-	if val != 100 {
-		t.Fatal(val)
-	}
-}
-
-func Test_int64_minus_100(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("-100"), 4096)
-	val := iter.ReadInt64()
-	if val != -100 {
-		t.Fatal(val)
-	}
-}
-
-func Benchmark_jsoniter_int(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		iter := ParseString(`-100`)
-		iter.ReadInt64()
-	}
-}
-
-func Benchmark_json_int(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		result := int64(0)
-		json.Unmarshal([]byte(`-100`), &result)
-	}
-}

jsoniter_io_test.go

@@ -1,84 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"bytes"
-	"io"
-)
-
-func Test_read_by_one(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("abc"), 1)
-	b := iter.readByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if b != 'a' {
-		t.Fatal(b)
-	}
-	iter.unreadByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	iter.unreadByte()
-	if iter.Error == nil {
-		t.FailNow()
-	}
-	iter.Error = nil
-	b = iter.readByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if b != 'a' {
-		t.Fatal(b)
-	}
-}
-
-func Test_read_by_two(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("abc"), 2)
-	b := iter.readByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if b != 'a' {
-		t.Fatal(b)
-	}
-	b = iter.readByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if b != 'b' {
-		t.Fatal(b)
-	}
-	iter.unreadByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	iter.unreadByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	b = iter.readByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if b != 'a' {
-		t.Fatal(b)
-	}
-}
-
-func Test_read_until_eof(t *testing.T) {
-	iter := Parse(bytes.NewBufferString("abc"), 2)
-	iter.readByte()
-	iter.readByte()
-	b := iter.readByte()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if b != 'c' {
-		t.Fatal(b)
-	}
-	iter.readByte()
-	if iter.Error != io.EOF {
-		t.Fatal(iter.Error)
-	}
-}

jsoniter_large_file_test.go

@@ -1,50 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"os"
-	"encoding/json"
-	"io/ioutil"
-)
-
-func Test_large_file(t *testing.T) {
-	file, err := os.Open("/tmp/large-file.json")
-	if err != nil {
-		t.Fatal(err)
-	}
-	iter := Parse(file, 4096)
-	count := 0
-	for iter.ReadArray() {
-		iter.Skip()
-		count++
-	}
-	if count != 11351 {
-		t.Fatal(count)
-	}
-}
-
-
-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(file, 4096)
-		count := 0
-		for iter.ReadArray() {
-			iter.Skip()
-			count++
-		}
-		file.Close()
-	}
-}
-
-func Benchmark_json_large_file(b *testing.B) {
-	b.ReportAllocs()
-	for n := 0; n < b.N; n++ {
-		file, _ := os.Open("/tmp/large-file.json")
-		bytes, _ := ioutil.ReadAll(file)
-		file.Close()
-		result := []struct{}{}
-		json.Unmarshal(bytes, &result)
-	}
-}

jsoniter_map_test.go

@@ -1,38 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"reflect"
-	"fmt"
-)
-
-func Test_read_map(t *testing.T) {
-	iter := ParseString(`{"hello": "world"}`)
-	m := map[string]string{"1": "2"}
-	iter.Read(&m)
-	copy(iter.buf, []byte{0,0,0,0,0,0})
-	if !reflect.DeepEqual(map[string]string{"1": "2", "hello": "world"}, m) {
-		fmt.Println(iter.Error)
-		t.Fatal(m)
-	}
-}
-
-func Test_read_map_of_interface(t *testing.T) {
-	iter := ParseString(`{"hello": "world"}`)
-	m := map[string]interface{}{"1": "2"}
-	iter.Read(&m)
-	if !reflect.DeepEqual(map[string]interface{}{"1": "2", "hello": "world"}, m) {
-		fmt.Println(iter.Error)
-		t.Fatal(m)
-	}
-}
-
-func Test_read_map_of_any(t *testing.T) {
-	iter := ParseString(`{"hello": "world"}`)
-	m := map[string]Any{"1": *MakeAny("2")}
-	iter.Read(&m)
-	if !reflect.DeepEqual(map[string]Any{"1": *MakeAny("2"), "hello": *MakeAny("world")}, m) {
-		fmt.Println(iter.Error)
-		t.Fatal(m)
-	}
-}

jsoniter_nested_test.go

@@ -1,88 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"reflect"
-	"encoding/json"
-)
-
-type Level1 struct {
-	Hello []Level2
-}
-
-type Level2 struct {
-	World string
-}
-
-func Test_nested(t *testing.T) {
-	iter := ParseString(`{"hello": [{"world": "value1"}, {"world": "value2"}]}`)
-	l1 := Level1{}
-	for l1Field := iter.ReadObject(); l1Field != ""; l1Field = iter.ReadObject() {
-		switch l1Field {
-		case "hello":
-			l2Array := []Level2{}
-			for iter.ReadArray() {
-				l2 := Level2{}
-				for l2Field := iter.ReadObject(); l2Field != ""; l2Field = iter.ReadObject() {
-					switch l2Field {
-					case "world":
-						l2.World = iter.ReadString()
-					default:
-						iter.ReportError("bind l2", "unexpected field: " + l2Field)
-					}
-				}
-				l2Array = append(l2Array, l2)
-			}
-			l1.Hello = l2Array
-		default:
-			iter.ReportError("bind l1", "unexpected field: " + l1Field)
-		}
-	}
-	if !reflect.DeepEqual(l1, Level1{
-		Hello: []Level2{
-			{World: "value1"},
-			{World: "value2"},
-		},
-	}) {
-		t.Fatal(l1)
-	}
-}
-
-func Benchmark_jsoniter_nested(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		iter := ParseString(`{"hello": [{"world": "value1"}, {"world": "value2"}]}`)
-		l1 := Level1{}
-		for l1Field := iter.ReadObject(); l1Field != ""; l1Field = iter.ReadObject() {
-			switch l1Field {
-			case "hello":
-				l1.Hello = readLevel1Hello(iter)
-			default:
-				iter.Skip()
-			}
-		}
-	}
-}
-
-func readLevel1Hello(iter *Iterator) []Level2 {
-	l2Array := make([]Level2, 0, 2)
-	for iter.ReadArray() {
-		l2 := Level2{}
-		for l2Field := iter.ReadObject(); l2Field != ""; l2Field = iter.ReadObject() {
-			switch l2Field {
-			case "world":
-				l2.World = iter.ReadString()
-			default:
-				iter.Skip()
-			}
-		}
-		l2Array = append(l2Array, l2)
-	}
-	return l2Array
-}
-
-func Benchmark_json_nested(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		l1 := Level1{}
-		json.Unmarshal([]byte(`{"hello": [{"world": "value1"}, {"world": "value2"}]}`), &l1)
-	}
-}

jsoniter_null_test.go

@@ -1,58 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-)
-
-func Test_null(t *testing.T) {
-	iter := ParseString(`null`)
-	if iter.ReadNull() != true {
-		t.FailNow()
-	}
-}
-
-func Test_null_object(t *testing.T) {
-	iter := ParseString(`[null,"a"]`)
-	iter.ReadArray()
-	if iter.ReadObject() != "" {
-		t.FailNow()
-	}
-	iter.ReadArray()
-	if iter.ReadString() != "a" {
-		t.FailNow()
-	}
-}
-
-func Test_null_array(t *testing.T) {
-	iter := ParseString(`[null,"a"]`)
-	iter.ReadArray()
-	if iter.ReadArray() != false {
-		t.FailNow()
-	}
-	iter.ReadArray()
-	if iter.ReadString() != "a" {
-		t.FailNow()
-	}
-}
-
-func Test_null_string(t *testing.T) {
-	iter := ParseString(`[null,"a"]`)
-	iter.ReadArray()
-	if iter.ReadString() != "" {
-		t.FailNow()
-	}
-	iter.ReadArray()
-	if iter.ReadString() != "a" {
-		t.FailNow()
-	}
-}
-
-func Test_null_skip(t *testing.T) {
-	iter := ParseString(`[null,"a"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "a" {
-		t.FailNow()
-	}
-}

jsoniter_object_test.go

@@ -1,96 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"encoding/json"
-	"fmt"
-)
-
-func Test_empty_object(t *testing.T) {
-	iter := ParseString(`{}`)
-	field := iter.ReadObject()
-	if field != "" {
-		t.Fatal(field)
-	}
-}
-
-func Test_one_field(t *testing.T) {
-	iter := ParseString(`{"a": "b"}`)
-	field := iter.ReadObject()
-	if field != "a" {
-		fmt.Println(iter.Error)
-		t.Fatal(field)
-	}
-	value := iter.ReadString()
-	if value != "b" {
-		t.Fatal(field)
-	}
-	field = iter.ReadObject()
-	if field != "" {
-		t.Fatal(field)
-	}
-}
-
-func Test_two_field(t *testing.T) {
-	iter := ParseString(`{ "a": "b" , "c": "d" }`)
-	field := iter.ReadObject()
-	if field != "a" {
-		t.Fatal(field)
-	}
-	value := iter.ReadString()
-	if value != "b" {
-		t.Fatal(field)
-	}
-	field = iter.ReadObject()
-	if field != "c" {
-		t.Fatal(field)
-	}
-	value = iter.ReadString()
-	if value != "d" {
-		t.Fatal(field)
-	}
-	field = iter.ReadObject()
-	if field != "" {
-		t.Fatal(field)
-	}
-	iter = ParseString(`{"field1": "1", "field2": 2}`)
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		switch field {
-		case "field1":
-			iter.ReadString()
-		case "field2":
-			iter.ReadInt64()
-		default:
-			iter.ReportError("bind object", "unexpected field")
-		}
-	}
-}
-
-type TestObj struct {
-	Field1 string
-	Field2 uint64
-}
-
-func Benchmark_jsoniter_object(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		iter := ParseString(`{"field1": "1", "field2": 2}`)
-		obj := TestObj{}
-		for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-			switch field {
-			case "field1":
-				obj.Field1 = iter.ReadString()
-			case "field2":
-				obj.Field2 = iter.ReadUint64()
-			default:
-				iter.ReportError("bind object", "unexpected field")
-			}
-		}
-	}
-}
-
-func Benchmark_json_object(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		result := TestObj{}
-		json.Unmarshal([]byte(`{"field1": "1", "field2": 2}`), &result)
-	}
-}

jsoniter_reflect.go

@@ -1,819 +0,0 @@
-package jsoniter
-
-import (
-	"reflect"
-	"errors"
-	"fmt"
-	"unsafe"
-	"sync/atomic"
-	"strings"
-	"io"
-	"strconv"
-)
-
-type Decoder interface {
-	decode(ptr unsafe.Pointer, iter *Iterator)
-}
-
-type stringDecoder struct {
-}
-
-func (decoder *stringDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*string)(ptr)) = iter.ReadString()
-}
-
-type intDecoder struct {
-}
-
-func (decoder *intDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*int)(ptr)) = iter.ReadInt()
-}
-
-type int8Decoder struct {
-}
-
-func (decoder *int8Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*int8)(ptr)) = iter.ReadInt8()
-}
-
-type int16Decoder struct {
-}
-
-func (decoder *int16Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*int16)(ptr)) = iter.ReadInt16()
-}
-
-type int32Decoder struct {
-}
-
-func (decoder *int32Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*int32)(ptr)) = iter.ReadInt32()
-}
-
-type int64Decoder struct {
-}
-
-func (decoder *int64Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*int64)(ptr)) = iter.ReadInt64()
-}
-
-type uintDecoder struct {
-}
-
-func (decoder *uintDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*uint)(ptr)) = iter.ReadUint()
-}
-
-type uint8Decoder struct {
-}
-
-func (decoder *uint8Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*uint8)(ptr)) = iter.ReadUint8()
-}
-
-type uint16Decoder struct {
-}
-
-func (decoder *uint16Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*uint16)(ptr)) = iter.ReadUint16()
-}
-
-type uint32Decoder struct {
-}
-
-func (decoder *uint32Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*uint32)(ptr)) = iter.ReadUint32()
-}
-
-type uint64Decoder struct {
-}
-
-func (decoder *uint64Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*uint64)(ptr)) = iter.ReadUint64()
-}
-
-type float32Decoder struct {
-}
-
-func (decoder *float32Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*float32)(ptr)) = iter.ReadFloat32()
-}
-
-type float64Decoder struct {
-}
-
-func (decoder *float64Decoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*float64)(ptr)) = iter.ReadFloat64()
-}
-
-type boolDecoder struct {
-}
-
-func (decoder *boolDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*bool)(ptr)) = iter.ReadBool()
-}
-
-type interfaceDecoder struct {
-}
-
-func (decoder *interfaceDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*interface{})(ptr)) = iter.ReadAny().Get()
-}
-
-
-type anyDecoder struct {
-}
-
-func (decoder *anyDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	*((*Any)(ptr)) = *iter.ReadAny()
-}
-
-type stringNumberDecoder struct {
-	elemDecoder Decoder
-}
-
-func (decoder *stringNumberDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	c := iter.readByte()
-	if c != '"' {
-		iter.ReportError("stringNumberDecoder", `expect "`)
-		return
-	}
-	decoder.elemDecoder.decode(ptr, iter)
-	if iter.Error != nil {
-		return
-	}
-	c = iter.readByte()
-	if c != '"' {
-		iter.ReportError("stringNumberDecoder", `expect "`)
-		return
-	}
-}
-
-type optionalDecoder struct {
-	valueType    reflect.Type
-	valueDecoder Decoder
-}
-
-func (decoder *optionalDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	if iter.ReadNull() {
-		*((*unsafe.Pointer)(ptr)) = nil
-	} else {
-		value := reflect.New(decoder.valueType)
-		decoder.valueDecoder.decode(unsafe.Pointer(value.Pointer()), iter)
-		*((*uintptr)(ptr)) = value.Pointer()
-	}
-}
-
-type generalStructDecoder struct {
-	type_  reflect.Type
-	fields map[string]*structFieldDecoder
-}
-
-func (decoder *generalStructDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		fieldDecoder := decoder.fields[field]
-		if fieldDecoder == nil {
-			iter.Skip()
-		} else {
-			fieldDecoder.decode(ptr, iter)
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.type_, iter.Error.Error())
-	}
-}
-
-type skipDecoder struct {
-	type_ reflect.Type
-}
-
-func (decoder *skipDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	iter.Skip()
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.type_, iter.Error.Error())
-	}
-}
-
-type oneFieldStructDecoder struct {
-	type_        reflect.Type
-	fieldName    string
-	fieldDecoder *structFieldDecoder
-}
-
-func (decoder *oneFieldStructDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		if field == decoder.fieldName {
-			decoder.fieldDecoder.decode(ptr, iter)
-		} else {
-			iter.Skip()
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.type_, iter.Error.Error())
-	}
-}
-
-type twoFieldsStructDecoder struct {
-	type_         reflect.Type
-	fieldName1    string
-	fieldDecoder1 *structFieldDecoder
-	fieldName2    string
-	fieldDecoder2 *structFieldDecoder
-}
-
-func (decoder *twoFieldsStructDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		switch field {
-		case decoder.fieldName1:
-			decoder.fieldDecoder1.decode(ptr, iter)
-		case decoder.fieldName2:
-			decoder.fieldDecoder2.decode(ptr, iter)
-		default:
-			iter.Skip()
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.type_, iter.Error.Error())
-	}
-}
-
-type threeFieldsStructDecoder struct {
-	type_         reflect.Type
-	fieldName1    string
-	fieldDecoder1 *structFieldDecoder
-	fieldName2    string
-	fieldDecoder2 *structFieldDecoder
-	fieldName3    string
-	fieldDecoder3 *structFieldDecoder
-}
-
-func (decoder *threeFieldsStructDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		switch field {
-		case decoder.fieldName1:
-			decoder.fieldDecoder1.decode(ptr, iter)
-		case decoder.fieldName2:
-			decoder.fieldDecoder2.decode(ptr, iter)
-		case decoder.fieldName3:
-			decoder.fieldDecoder3.decode(ptr, iter)
-		default:
-			iter.Skip()
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.type_, iter.Error.Error())
-	}
-}
-
-type fourFieldsStructDecoder struct {
-	type_         reflect.Type
-	fieldName1    string
-	fieldDecoder1 *structFieldDecoder
-	fieldName2    string
-	fieldDecoder2 *structFieldDecoder
-	fieldName3    string
-	fieldDecoder3 *structFieldDecoder
-	fieldName4    string
-	fieldDecoder4 *structFieldDecoder
-}
-
-func (decoder *fourFieldsStructDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		switch field {
-		case decoder.fieldName1:
-			decoder.fieldDecoder1.decode(ptr, iter)
-		case decoder.fieldName2:
-			decoder.fieldDecoder2.decode(ptr, iter)
-		case decoder.fieldName3:
-			decoder.fieldDecoder3.decode(ptr, iter)
-		case decoder.fieldName4:
-			decoder.fieldDecoder4.decode(ptr, iter)
-		default:
-			iter.Skip()
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.type_, iter.Error.Error())
-	}
-}
-
-type structFieldDecoder struct {
-	field        *reflect.StructField
-	fieldDecoder Decoder
-}
-
-func (decoder *structFieldDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	fieldPtr := uintptr(ptr) + decoder.field.Offset
-	decoder.fieldDecoder.decode(unsafe.Pointer(fieldPtr), iter)
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%s: %s", decoder.field.Name, iter.Error.Error())
-	}
-}
-
-type mapDecoder struct {
-	mapType  reflect.Type
-	elemType  reflect.Type
-	elemDecoder Decoder
-	mapInterface emptyInterface
-}
-
-func (decoder *mapDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	// dark magic to cast unsafe.Pointer back to interface{} using reflect.Type
-	mapInterface := decoder.mapInterface
-	mapInterface.word = ptr
-	realInterface := (*interface{})(unsafe.Pointer(&mapInterface))
-	realVal := reflect.ValueOf(*realInterface).Elem()
-
-	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		elem := reflect.New(decoder.elemType)
-		decoder.elemDecoder.decode(unsafe.Pointer(elem.Pointer()), iter)
-		realVal.SetMapIndex(reflect.ValueOf(string([]byte(field))), elem.Elem())
-	}
-}
-
-type sliceDecoder struct {
-	sliceType   reflect.Type
-	elemType    reflect.Type
-	elemDecoder Decoder
-}
-
-// sliceHeader is a safe version of SliceHeader used within this package.
-type sliceHeader struct {
-	Data unsafe.Pointer
-	Len  int
-	Cap  int
-}
-
-func (decoder *sliceDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	decoder.doDecode(ptr, iter)
-	if iter.Error != nil && iter.Error != io.EOF {
-		iter.Error = fmt.Errorf("%v: %s", decoder.sliceType, iter.Error.Error())
-	}
-}
-
-func (decoder *sliceDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
-	slice := (*sliceHeader)(ptr)
-	reuseSlice(slice, decoder.sliceType, 4)
-	if !iter.ReadArray() {
-		return
-	}
-	offset := uintptr(0)
-	decoder.elemDecoder.decode(unsafe.Pointer(uintptr(slice.Data) + offset), iter)
-	if !iter.ReadArray() {
-		slice.Len = 1
-		return
-	}
-	offset += decoder.elemType.Size()
-	decoder.elemDecoder.decode(unsafe.Pointer(uintptr(slice.Data) + offset), iter)
-	if !iter.ReadArray() {
-		slice.Len = 2
-		return
-	}
-	offset += decoder.elemType.Size()
-	decoder.elemDecoder.decode(unsafe.Pointer(uintptr(slice.Data) + offset), iter)
-	if !iter.ReadArray() {
-		slice.Len = 3
-		return
-	}
-	offset += decoder.elemType.Size()
-	decoder.elemDecoder.decode(unsafe.Pointer(uintptr(slice.Data) + offset), iter)
-	slice.Len = 4
-	for iter.ReadArray() {
-		growOne(slice, decoder.sliceType, decoder.elemType)
-		offset += decoder.elemType.Size()
-		decoder.elemDecoder.decode(unsafe.Pointer(uintptr(slice.Data) + offset), iter)
-	}
-}
-
-// grow grows the slice s so that it can hold extra more values, allocating
-// more capacity if needed. It also returns the old and new slice lengths.
-func growOne(slice *sliceHeader, sliceType reflect.Type, elementType reflect.Type) {
-	newLen := slice.Len + 1
-	if newLen <= slice.Cap {
-		slice.Len = newLen
-		return
-	}
-	newCap := slice.Cap
-	if newCap == 0 {
-		newCap = 1
-	} else {
-		for newCap < newLen {
-			if slice.Len < 1024 {
-				newCap += newCap
-			} else {
-				newCap += newCap / 4
-			}
-		}
-	}
-	dst := unsafe.Pointer(reflect.MakeSlice(sliceType, newLen, newCap).Pointer())
-	originalBytesCount := uintptr(slice.Len) * elementType.Size()
-	srcPtr := (*[1 << 30]byte)(slice.Data)
-	dstPtr := (*[1 << 30]byte)(dst)
-	for i := uintptr(0); i < originalBytesCount; i++ {
-		dstPtr[i] = srcPtr[i]
-	}
-	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())
-	slice.Cap = expectedCap
-	slice.Data = dst
-}
-
-var DECODERS unsafe.Pointer
-
-func addDecoderToCache(cacheKey reflect.Type, decoder Decoder) {
-	retry := true
-	for retry {
-		ptr := atomic.LoadPointer(&DECODERS)
-		cache := *(*map[reflect.Type]Decoder)(ptr)
-		copy := map[reflect.Type]Decoder{}
-		for k, v := range cache {
-			copy[k] = v
-		}
-		copy[cacheKey] = decoder
-		retry = !atomic.CompareAndSwapPointer(&DECODERS, ptr, unsafe.Pointer(&copy))
-	}
-}
-
-func getDecoderFromCache(cacheKey reflect.Type) Decoder {
-	ptr := atomic.LoadPointer(&DECODERS)
-	cache := *(*map[reflect.Type]Decoder)(ptr)
-	return cache[cacheKey]
-}
-
-var typeDecoders map[string]Decoder
-var fieldDecoders map[string]Decoder
-var fieldCustomizers []FieldCustomizerFunc
-
-func init() {
-	typeDecoders = map[string]Decoder{}
-	fieldDecoders = map[string]Decoder{}
-	fieldCustomizers = []FieldCustomizerFunc{}
-	atomic.StorePointer(&DECODERS, unsafe.Pointer(&map[string]Decoder{}))
-}
-
-type DecoderFunc func(ptr unsafe.Pointer, iter *Iterator)
-type FieldCustomizerFunc func(type_ reflect.Type, field *reflect.StructField) ([]string, DecoderFunc)
-
-type funcDecoder struct {
-	func_ DecoderFunc
-}
-
-func (decoder *funcDecoder) decode(ptr unsafe.Pointer, iter *Iterator) {
-	decoder.func_(ptr, iter)
-}
-
-func RegisterTypeDecoder(type_ string, func_ DecoderFunc) {
-	typeDecoders[type_] = &funcDecoder{func_}
-}
-
-func RegisterFieldDecoder(type_ string, field string, func_ DecoderFunc) {
-	fieldDecoders[fmt.Sprintf("%s/%s", type_, field)] = &funcDecoder{func_}
-}
-
-func RegisterFieldCustomizer(func_ FieldCustomizerFunc) {
-	fieldCustomizers = append(fieldCustomizers, func_)
-}
-
-func ClearDecoders() {
-	typeDecoders = map[string]Decoder{}
-	fieldDecoders = map[string]Decoder{}
-}
-
-// emptyInterface is the header for an interface{} value.
-type emptyInterface struct {
-	typ  *struct{}
-	word unsafe.Pointer
-}
-
-func (iter *Iterator) ReadAny() (ret *Any) {
-	valueType := iter.WhatIsNext()
-	switch valueType {
-	case String:
-		return MakeAny(iter.ReadString())
-	case Number:
-		return iter.readNumber()
-	case Null:
-		return MakeAny(nil)
-	case Bool:
-		return MakeAny(iter.ReadBool())
-	case Array:
-		val := []interface{}{}
-		for (iter.ReadArray()) {
-			element := iter.ReadAny()
-			if iter.Error != nil {
-				return
-			}
-			val = append(val, element.val)
-		}
-		return MakeAny(val)
-	case Object:
-		val := map[string]interface{}{}
-		for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-			element := iter.ReadAny()
-			if iter.Error != nil {
-				return
-			}
-			val[string([]byte(field))] = element.val
-		}
-		return MakeAny(val)
-	default:
-		iter.ReportError("ReadAny", fmt.Sprintf("unexpected value type: %v", valueType))
-		return MakeAny(nil)
-	}
-}
-
-
-
-func (iter *Iterator) readNumber() (ret *Any) {
-	strBuf := [8]byte{}
-	str := strBuf[0:0]
-	hasMore := true
-	foundFloat := false
-	foundNegative := false
-	for(hasMore) {
-		for i := iter.head; i < iter.tail; i++ {
-			c := iter.buf[i]
-			switch c {
-			case '-':
-				foundNegative = true
-				str = append(str, c)
-				continue
-			case '+', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
-				str = append(str, c)
-				continue
-			case '.', 'e', 'E':
-				foundFloat = true
-				str = append(str, c)
-				continue
-			default:
-				hasMore = false
-				break
-			}
-		}
-		if hasMore {
-			if !iter.loadMore() {
-				break
-			}
-		}
-	}
-	if iter.Error != nil && iter.Error != io.EOF {
-		return
-	}
-	number := *(*string)(unsafe.Pointer(&str))
-	if foundFloat {
-		val, err := strconv.ParseFloat(number, 64)
-		if err != nil {
-			iter.Error = err
-			return
-		}
-		return MakeAny(val)
-	}
-	if foundNegative {
-		val, err := strconv.ParseInt(number, 10, 64)
-		if err != nil {
-			iter.Error = err
-			return
-		}
-		return MakeAny(val)
-	}
-	val, err := strconv.ParseUint(number, 10, 64)
-	if err != nil {
-		iter.Error = err
-		return
-	}
-	return MakeAny(val)
-}
-
-func (iter *Iterator) Read(obj interface{}) {
-	type_ := reflect.TypeOf(obj)
-	cacheKey := type_.Elem()
-	cachedDecoder := getDecoderFromCache(cacheKey)
-	if cachedDecoder == nil {
-		decoder, err := decoderOfType(type_)
-		if err != nil {
-			iter.Error = err
-			return
-		}
-		cachedDecoder = decoder
-		addDecoderToCache(cacheKey, decoder)
-	}
-	e := (*emptyInterface)(unsafe.Pointer(&obj))
-	cachedDecoder.decode(e.word, iter)
-}
-
-type prefix string
-
-func (p prefix) addTo(decoder Decoder, err error) (Decoder, error) {
-	if err != nil {
-		return nil, fmt.Errorf("%s: %s", p, err.Error())
-	}
-	return decoder, err
-}
-
-func decoderOfType(type_ reflect.Type) (Decoder, error) {
-	switch type_.Kind() {
-	case reflect.Ptr:
-		return prefix("ptr").addTo(decoderOfPtr(type_.Elem()))
-	default:
-		return nil, errors.New("expect ptr")
-	}
-}
-
-func decoderOfPtr(type_ reflect.Type) (Decoder, error) {
-	typeName := type_.String()
-	if typeName == "jsoniter.Any" {
-		return &anyDecoder{}, nil
-	}
-	typeDecoder := typeDecoders[typeName]
-	if typeDecoder != nil {
-		return typeDecoder, nil
-	}
-	switch type_.Kind() {
-	case reflect.String:
-		return &stringDecoder{}, nil
-	case reflect.Int:
-		return &intDecoder{}, nil
-	case reflect.Int8:
-		return &int8Decoder{}, nil
-	case reflect.Int16:
-		return &int16Decoder{}, nil
-	case reflect.Int32:
-		return &int32Decoder{}, nil
-	case reflect.Int64:
-		return &int64Decoder{}, nil
-	case reflect.Uint:
-		return &uintDecoder{}, nil
-	case reflect.Uint8:
-		return &uint8Decoder{}, nil
-	case reflect.Uint16:
-		return &uint16Decoder{}, nil
-	case reflect.Uint32:
-		return &uint32Decoder{}, nil
-	case reflect.Uint64:
-		return &uint64Decoder{}, nil
-	case reflect.Float32:
-		return &float32Decoder{}, nil
-	case reflect.Float64:
-		return &float64Decoder{}, nil
-	case reflect.Bool:
-		return &boolDecoder{}, nil
-	case reflect.Interface:
-		return &interfaceDecoder{}, nil
-	case reflect.Struct:
-		return decoderOfStruct(type_)
-	case reflect.Slice:
-		return prefix("[slice]").addTo(decoderOfSlice(type_))
-	case reflect.Map:
-		return prefix("[map]").addTo(decoderOfMap(type_))
-	case reflect.Ptr:
-		return prefix("[optional]").addTo(decoderOfOptional(type_.Elem()))
-	default:
-		return nil, fmt.Errorf("unsupported type: %v", type_)
-	}
-}
-
-func decoderOfOptional(type_ reflect.Type) (Decoder, error) {
-	decoder, err := decoderOfPtr(type_)
-	if err != nil {
-		return nil, err
-	}
-	return &optionalDecoder{type_, decoder}, nil
-}
-
-func decoderOfStruct(type_ reflect.Type) (Decoder, error) {
-	fields := map[string]*structFieldDecoder{}
-	for i := 0; i < type_.NumField(); i++ {
-		field := type_.Field(i)
-		fieldDecoderKey := fmt.Sprintf("%s/%s", type_.String(), field.Name)
-		var fieldNames []string
-		for _, customizer := range fieldCustomizers {
-			alternativeFieldNames, func_ := customizer(type_, &field)
-			if alternativeFieldNames != nil {
-				fieldNames = alternativeFieldNames
-			}
-			if func_ != nil {
-				fieldDecoders[fieldDecoderKey] = &funcDecoder{func_}
-			}
-		}
-		decoder := fieldDecoders[fieldDecoderKey]
-		tagParts := strings.Split(field.Tag.Get("json"), ",")
-		if fieldNames == nil {
-			switch tagParts[0] {
-			case "":
-				fieldNames = []string{field.Name}
-			case "-":
-				fieldNames = []string{}
-			}
-		}
-		if decoder == nil {
-			var err error
-			decoder, err = decoderOfPtr(field.Type)
-			if err != nil {
-				return prefix(fmt.Sprintf("{%s}", field.Name)).addTo(decoder, err)
-			}
-		}
-		if len(tagParts) > 1 && tagParts[1] == "string" {
-			decoder = &stringNumberDecoder{decoder}
-		}
-		for _, fieldName := range fieldNames {
-			fields[fieldName] = &structFieldDecoder{&field, decoder}
-		}
-	}
-	switch len(fields) {
-	case 0:
-		return &skipDecoder{type_}, nil
-	case 1:
-		for fieldName, fieldDecoder := range fields {
-			return &oneFieldStructDecoder{type_, fieldName, fieldDecoder}, nil
-		}
-	case 2:
-		var fieldName1 string
-		var fieldName2 string
-		var fieldDecoder1 *structFieldDecoder
-		var fieldDecoder2 *structFieldDecoder
-		for fieldName, fieldDecoder := range fields {
-			if fieldName1 == "" {
-				fieldName1 = fieldName
-				fieldDecoder1 = fieldDecoder
-			} else {
-				fieldName2 = fieldName
-				fieldDecoder2 = fieldDecoder
-			}
-		}
-		return &twoFieldsStructDecoder{type_, fieldName1, fieldDecoder1, fieldName2, fieldDecoder2}, nil
-	case 3:
-		var fieldName1 string
-		var fieldName2 string
-		var fieldName3 string
-		var fieldDecoder1 *structFieldDecoder
-		var fieldDecoder2 *structFieldDecoder
-		var fieldDecoder3 *structFieldDecoder
-		for fieldName, fieldDecoder := range fields {
-			if fieldName1 == "" {
-				fieldName1 = fieldName
-				fieldDecoder1 = fieldDecoder
-			} else if fieldName2 == "" {
-				fieldName2 = fieldName
-				fieldDecoder2 = fieldDecoder
-			} else {
-				fieldName3 = fieldName
-				fieldDecoder3 = fieldDecoder
-			}
-		}
-		return &threeFieldsStructDecoder{type_,
-			fieldName1, fieldDecoder1, fieldName2, fieldDecoder2, fieldName3, fieldDecoder3}, nil
-	case 4:
-		var fieldName1 string
-		var fieldName2 string
-		var fieldName3 string
-		var fieldName4 string
-		var fieldDecoder1 *structFieldDecoder
-		var fieldDecoder2 *structFieldDecoder
-		var fieldDecoder3 *structFieldDecoder
-		var fieldDecoder4 *structFieldDecoder
-		for fieldName, fieldDecoder := range fields {
-			if fieldName1 == "" {
-				fieldName1 = fieldName
-				fieldDecoder1 = fieldDecoder
-			} else if fieldName2 == "" {
-				fieldName2 = fieldName
-				fieldDecoder2 = fieldDecoder
-			} else if fieldName3 == "" {
-				fieldName3 = fieldName
-				fieldDecoder3 = fieldDecoder
-			} else {
-				fieldName4 = fieldName
-				fieldDecoder4 = fieldDecoder
-			}
-		}
-		return &fourFieldsStructDecoder{type_,
-			fieldName1, fieldDecoder1, fieldName2, fieldDecoder2, fieldName3, fieldDecoder3,
-			fieldName4, fieldDecoder4}, nil
-	}
-	return &generalStructDecoder{type_, fields}, nil
-}
-
-func decoderOfSlice(type_ reflect.Type) (Decoder, error) {
-	decoder, err := decoderOfPtr(type_.Elem())
-	if err != nil {
-		return nil, err
-	}
-	return &sliceDecoder{type_, type_.Elem(), decoder}, nil
-}
-
-func decoderOfMap(type_ reflect.Type) (Decoder, error) {
-	decoder, err := decoderOfPtr(type_.Elem())
-	if err != nil {
-		return nil, err
-	}
-	mapInterface := reflect.New(type_).Interface()
-	return &mapDecoder{type_, type_.Elem(), decoder, *((*emptyInterface)(unsafe.Pointer(&mapInterface)))}, nil
-}

jsoniter_reflect_test.go

@@ -1,341 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"fmt"
-	"encoding/json"
-	"unsafe"
-)
-
-func Test_reflect_str(t *testing.T) {
-	iter := ParseString(`"hello"`)
-	str := ""
-	iter.Read(&str)
-	if str != "hello" {
-		fmt.Println(iter.Error)
-		t.Fatal(str)
-	}
-}
-
-func Test_reflect_ptr_str(t *testing.T) {
-	iter := ParseString(`"hello"`)
-	var str *string
-	iter.Read(&str)
-	if *str != "hello" {
-		t.Fatal(str)
-	}
-}
-
-func Test_reflect_int(t *testing.T) {
-	iter := ParseString(`123`)
-	val := int(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_int8(t *testing.T) {
-	iter := ParseString(`123`)
-	val := int8(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_int16(t *testing.T) {
-	iter := ParseString(`123`)
-	val := int16(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_int32(t *testing.T) {
-	iter := ParseString(`123`)
-	val := int32(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_int64(t *testing.T) {
-	iter := ParseString(`123`)
-	val := int64(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_uint(t *testing.T) {
-	iter := ParseString(`123`)
-	val := uint(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_uint8(t *testing.T) {
-	iter := ParseString(`123`)
-	val := uint8(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_uint16(t *testing.T) {
-	iter := ParseString(`123`)
-	val := uint16(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_uint32(t *testing.T) {
-	iter := ParseString(`123`)
-	val := uint32(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_uint64(t *testing.T) {
-	iter := ParseString(`123`)
-	val := uint64(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_byte(t *testing.T) {
-	iter := ParseString(`123`)
-	val := byte(0)
-	iter.Read(&val)
-	if val != 123 {
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_float32(t *testing.T) {
-	iter := ParseString(`1.23`)
-	val := float32(0)
-	iter.Read(&val)
-	if val != 1.23 {
-		fmt.Println(iter.Error)
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_float64(t *testing.T) {
-	iter := ParseString(`1.23`)
-	val := float64(0)
-	iter.Read(&val)
-	if val != 1.23 {
-		fmt.Println(iter.Error)
-		t.Fatal(val)
-	}
-}
-
-func Test_reflect_bool(t *testing.T) {
-	iter := ParseString(`true`)
-	val := false
-	iter.Read(&val)
-	if val != true {
-		fmt.Println(iter.Error)
-		t.Fatal(val)
-	}
-}
-
-type StructOfString struct {
-	field1 string
-	field2 string
-}
-
-func Test_reflect_struct_string(t *testing.T) {
-	iter := ParseString(`{"field1": "hello", "field2": "world"}`)
-	struct_ := StructOfString{}
-	iter.Read(&struct_)
-	if struct_.field1 != "hello" {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field1)
-	}
-	if struct_.field2 != "world" {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field1)
-	}
-}
-
-type StructOfStringPtr struct {
-	field1 *string
-	field2 *string
-}
-
-func Test_reflect_struct_string_ptr(t *testing.T) {
-	iter := ParseString(`{"field1": null, "field2": "world"}`)
-	struct_ := StructOfStringPtr{}
-	iter.Read(&struct_)
-	if struct_.field1 != nil {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field1)
-	}
-	if *struct_.field2 != "world" {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field2)
-	}
-}
-
-type StructOfTag struct {
-	field1 string `json:"field-1"`
-	field2 string `json:"-"`
-	field3 int `json:",string"`
-}
-
-func Test_reflect_struct_tag_field(t *testing.T) {
-	iter := ParseString(`{"field-1": "hello", "field2": "", "field3": "100"}`)
-	struct_ := StructOfTag{field2: "world"}
-	iter.Read(&struct_)
-	if struct_.field1 != "hello" {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field1)
-	}
-	if struct_.field2 != "world" {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field2)
-	}
-	if struct_.field3 != 100 {
-		fmt.Println(iter.Error)
-		t.Fatal(struct_.field3)
-	}
-}
-
-func Test_reflect_slice(t *testing.T) {
-	iter := ParseString(`["hello", "world"]`)
-	slice := make([]string, 0, 5)
-	iter.Read(&slice)
-	if len(slice) != 2 {
-		fmt.Println(iter.Error)
-		t.Fatal(len(slice))
-	}
-	if slice[0] != "hello" {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[0])
-	}
-	if slice[1] != "world" {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[1])
-	}
-}
-
-func Test_reflect_large_slice(t *testing.T) {
-	iter := ParseString(`[1,2,3,4,5,6,7,8,9]`)
-	slice := make([]int, 0, 1)
-	iter.Read(&slice)
-	if len(slice) != 9 {
-		fmt.Println(iter.Error)
-		t.Fatal(len(slice))
-	}
-	if slice[0] != 1 {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[0])
-	}
-	if slice[8] != 9 {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[1])
-	}
-}
-
-func Test_reflect_nested(t *testing.T) {
-	iter := ParseString(`[{"field1": "hello"}, null, {"field2": "world"}]`)
-	slice := []*StructOfString{}
-	iter.Read(&slice)
-	if len(slice) != 3 {
-		fmt.Println(iter.Error)
-		t.Fatal(len(slice))
-	}
-	if slice[0].field1 != "hello" {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[0])
-	}
-	if slice[1] != nil {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[1])
-	}
-	if slice[2].field2 != "world" {
-		fmt.Println(iter.Error)
-		t.Fatal(slice[1])
-	}
-}
-
-func Test_reflect_base64(t *testing.T) {
-	iter := ParseString(`"YWJj"`)
-	val := []byte{}
-	RegisterTypeDecoder("[]uint8", func(ptr unsafe.Pointer, iter *Iterator) {
-		*((*[]byte)(ptr)) = iter.ReadBase64()
-	})
-	defer ClearDecoders()
-	iter.Read(&val)
-	if "abc" != string(val) {
-		t.Fatal(string(val))
-	}
-}
-
-type StructOfTagOne struct {
-	field1 string `json:"field1"`
-	field2 string `json:"field2"`
-	field3 int `json:"field3,string"`
-	field4 int `json:"field4,string"`
-}
-
-func Benchmark_jsoniter_reflect(b *testing.B) {
-	b.ReportAllocs()
-	for n := 0; n < b.N; n++ {
-		iter := ParseString(`{"field3": "100"}`)
-		struct_ := StructOfTagOne{}
-		iter.Read(&struct_)
-		//iter := ParseString(`[1,2,3]`)
-		//var array []int
-		//iter.Read(&array)
-	}
-}
-
-func Benchmark_jsoniter_direct(b *testing.B) {
-	b.ReportAllocs()
-	for n := 0; n < b.N; n++ {
-		//iter := ParseString(`{"field1": "hello", "field2": "world"}`)
-		//struct_ := StructOfString{}
-		//for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-		//	switch field {
-		//	case "field1":
-		//		struct_.field1 = iter.ReadString()
-		//	case "field2":
-		//		struct_.field2 = iter.ReadString()
-		//	default:
-		//		iter.Skip()
-		//	}
-		//}
-		iter := ParseString(`["hello", "world"]`)
-		array := make([]string, 0, 2)
-		for iter.ReadArray() {
-			array = append(array, iter.ReadString())
-		}
-	}
-}
-
-func Benchmark_json_reflect(b *testing.B) {
-	b.ReportAllocs()
-	for n := 0; n < b.N; n++ {
-		struct_ := StructOfTagOne{}
-		json.Unmarshal([]byte(`{"field3": "100"}`), &struct_)
-		//array := make([]string, 0, 2)
-		//json.Unmarshal([]byte(`["hello", "world"]`), &array)
-	}
-}

jsoniter_skip_test.go

@@ -1,151 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"encoding/json"
-)
-
-
-func Test_skip_number(t *testing.T) {
-	iter := ParseString(`[-0.12, "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-func Test_skip_null(t *testing.T) {
-	iter := ParseString(`[null , "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-func Test_skip_true(t *testing.T) {
-	iter := ParseString(`[true , "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-func Test_skip_false(t *testing.T) {
-	iter := ParseString(`[false , "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-func Test_skip_array(t *testing.T) {
-	iter := ParseString(`[[1, [2, [3], 4]], "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-func Test_skip_empty_array(t *testing.T) {
-	iter := ParseString(`[ [ ], "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-func Test_skip_nested(t *testing.T) {
-	iter := ParseString(`[ {"a" : [{"b": "c"}], "d": 102 }, "b"]`)
-	iter.ReadArray()
-	iter.Skip()
-	iter.ReadArray()
-	if iter.ReadString() != "b" {
-		t.FailNow()
-	}
-}
-
-type TestResp struct {
-	Code uint64
-}
-
-func Benchmark_jsoniter_skip(b *testing.B) {
-	input := []byte(`
-{
-    "_shards":{
-        "total" : 5,
-        "successful" : 5,
-        "failed" : 0
-    },
-    "hits":{
-        "total" : 1,
-        "hits" : [
-            {
-                "_index" : "twitter",
-                "_type" : "tweet",
-                "_id" : "1",
-                "_source" : {
-                    "user" : "kimchy",
-                    "postDate" : "2009-11-15T14:12:12",
-                    "message" : "trying out Elasticsearch"
-                }
-            }
-        ]
-    },
-    "code": 200
-}`)
-	for n := 0; n < b.N; n++ {
-		result := TestResp{}
-		iter := ParseBytes(input)
-		for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
-			switch field {
-			case "code":
-				result.Code = iter.ReadUint64()
-			default:
-				iter.Skip()
-			}
-		}
-	}
-}
-
-func Benchmark_json_skip(b *testing.B) {
-	input := []byte(`
-{
-    "_shards":{
-        "total" : 5,
-        "successful" : 5,
-        "failed" : 0
-    },
-    "hits":{
-        "total" : 1,
-        "hits" : [
-            {
-                "_index" : "twitter",
-                "_type" : "tweet",
-                "_id" : "1",
-                "_source" : {
-                    "user" : "kimchy",
-                    "postDate" : "2009-11-15T14:12:12",
-                    "message" : "trying out Elasticsearch"
-                }
-            }
-        ]
-    },
-    "code": 200
-}`)
-	for n := 0; n < b.N; n++ {
-		result := TestResp{}
-		json.Unmarshal(input, &result)
-	}
-}

jsoniter_string_test.go

@@ -1,124 +0,0 @@
-package jsoniter
-
-import (
-	"testing"
-	"bytes"
-	"encoding/json"
-)
-
-func Test_string_empty(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`""`), 4096)
-	val := iter.ReadString()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != "" {
-		t.Fatal(val)
-	}
-}
-
-func Test_string_hello(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`"hello"`), 4096)
-	val := iter.ReadString()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != "hello" {
-		t.Fatal(val)
-	}
-}
-
-func Test_string_escape_quote(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`"hel\"lo"`), 4096)
-	val := iter.ReadString()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != `hel"lo` {
-		t.Fatal(val)
-	}
-}
-
-func Test_string_escape_newline(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`"hel\nlo"`), 4096)
-	val := iter.ReadString()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != "hel\nlo" {
-		t.Fatal(val)
-	}
-}
-
-func Test_string_escape_unicode(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`"\u4e2d\u6587"`), 4096)
-	val := iter.ReadString()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != "中文" {
-		t.Fatal(val)
-	}
-}
-
-func Test_string_escape_unicode_with_surrogate(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`"\ud83d\udc4a"`), 4096)
-	val := iter.ReadString()
-	if iter.Error != nil {
-		t.Fatal(iter.Error)
-	}
-	if val != "\xf0\x9f\x91\x8a" {
-		t.Fatal(val)
-	}
-}
-
-func Test_string_as_bytes(t *testing.T) {
-	iter := Parse(bytes.NewBufferString(`"hello""world"`), 4096)
-	val := string(iter.readStringAsBytes())
-	if val != "hello" {
-		t.Fatal(val)
-	}
-	val = string(iter.readStringAsBytes())
-	if val != "world" {
-		t.Fatal(val)
-	}
-}
-
-func Benchmark_jsoniter_unicode(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		iter := ParseString(`"\ud83d\udc4a"`)
-		iter.ReadString()
-	}
-}
-
-func Benchmark_jsoniter_ascii(b *testing.B) {
-	iter := ParseString(`"hello, world!"`)
-	b.ResetTimer()
-	for n := 0; n < b.N; n++ {
-		iter.ResetBytes(iter.buf)
-		iter.ReadString()
-	}
-}
-
-func Benchmark_jsoniter_string_as_bytes(b *testing.B) {
-	iter := ParseString(`"hello, world!"`)
-	b.ResetTimer()
-	for n := 0; n < b.N; n++ {
-		iter.ResetBytes(iter.buf)
-		iter.readStringAsBytes()
-	}
-}
-
-func Benchmark_json_unicode(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		result := ""
-		json.Unmarshal([]byte(`"\ud83d\udc4a"`), &result)
-	}
-}
-
-func Benchmark_json_ascii(b *testing.B) {
-	for n := 0; n < b.N; n++ {
-		result := ""
-		json.Unmarshal([]byte(`"hello"`), &result)
-	}
-}

misc_tests/jsoniter_array_test.go

@@ -0,0 +1,247 @@
+package misc_tests
+
+import (
+	"bytes"
+	"encoding/json"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_empty_array(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[]`)
+	cont := iter.ReadArray()
+	should.False(cont)
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `[]`)
+	iter.ReadArrayCB(func(iter *jsoniter.Iterator) bool {
+		should.FailNow("should not call")
+		return true
+	})
+}
+
+func Test_one_element(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[1]`)
+	should.True(iter.ReadArray())
+	should.Equal(1, iter.ReadInt())
+	should.False(iter.ReadArray())
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `[1]`)
+	iter.ReadArrayCB(func(iter *jsoniter.Iterator) bool {
+		should.Equal(1, iter.ReadInt())
+		return true
+	})
+}
+
+func Test_two_elements(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[1,2]`)
+	should.True(iter.ReadArray())
+	should.Equal(int64(1), iter.ReadInt64())
+	should.True(iter.ReadArray())
+	should.Equal(int64(2), iter.ReadInt64())
+	should.False(iter.ReadArray())
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `[1,2]`)
+	should.Equal([]interface{}{float64(1), float64(2)}, iter.Read())
+}
+
+func Test_whitespace_in_head(t *testing.T) {
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, ` [1]`)
+	cont := iter.ReadArray()
+	if cont != true {
+		t.FailNow()
+	}
+	if iter.ReadUint64() != 1 {
+		t.FailNow()
+	}
+}
+
+func Test_whitespace_after_array_start(t *testing.T) {
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[ 1]`)
+	cont := iter.ReadArray()
+	if cont != true {
+		t.FailNow()
+	}
+	if iter.ReadUint64() != 1 {
+		t.FailNow()
+	}
+}
+
+func Test_whitespace_before_array_end(t *testing.T) {
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[1 ]`)
+	cont := iter.ReadArray()
+	if cont != true {
+		t.FailNow()
+	}
+	if iter.ReadUint64() != 1 {
+		t.FailNow()
+	}
+	cont = iter.ReadArray()
+	if cont != false {
+		t.FailNow()
+	}
+}
+
+func Test_whitespace_before_comma(t *testing.T) {
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[1 ,2]`)
+	cont := iter.ReadArray()
+	if cont != true {
+		t.FailNow()
+	}
+	if iter.ReadUint64() != 1 {
+		t.FailNow()
+	}
+	cont = iter.ReadArray()
+	if cont != true {
+		t.FailNow()
+	}
+	if iter.ReadUint64() != 2 {
+		t.FailNow()
+	}
+	cont = iter.ReadArray()
+	if cont != false {
+		t.FailNow()
+	}
+}
+
+func Test_write_array(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.Config{IndentionStep: 2}.Froze(), buf, 4096)
+	stream.WriteArrayStart()
+	stream.WriteInt(1)
+	stream.WriteMore()
+	stream.WriteInt(2)
+	stream.WriteArrayEnd()
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("[\n  1,\n  2\n]", buf.String())
+}
+
+func Test_write_val_array(t *testing.T) {
+	should := require.New(t)
+	val := []int{1, 2, 3}
+	str, err := jsoniter.MarshalToString(&val)
+	should.Nil(err)
+	should.Equal("[1,2,3]", str)
+}
+
+func Test_write_val_empty_array(t *testing.T) {
+	should := require.New(t)
+	val := []int{}
+	str, err := jsoniter.MarshalToString(val)
+	should.Nil(err)
+	should.Equal("[]", str)
+}
+
+func Test_write_array_of_interface_in_struct(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field  []interface{}
+		Field2 string
+	}
+	val := TestObject{[]interface{}{1, 2}, ""}
+	str, err := jsoniter.MarshalToString(val)
+	should.Nil(err)
+	should.Contains(str, `"Field":[1,2]`)
+	should.Contains(str, `"Field2":""`)
+}
+
+func Test_encode_byte_array(t *testing.T) {
+	should := require.New(t)
+	bytes, err := json.Marshal([]byte{1, 2, 3})
+	should.Nil(err)
+	should.Equal(`"AQID"`, string(bytes))
+	bytes, err = jsoniter.Marshal([]byte{1, 2, 3})
+	should.Nil(err)
+	should.Equal(`"AQID"`, string(bytes))
+}
+
+func Test_encode_empty_byte_array(t *testing.T) {
+	should := require.New(t)
+	bytes, err := json.Marshal([]byte{})
+	should.Nil(err)
+	should.Equal(`""`, string(bytes))
+	bytes, err = jsoniter.Marshal([]byte{})
+	should.Nil(err)
+	should.Equal(`""`, string(bytes))
+}
+
+func Test_encode_nil_byte_array(t *testing.T) {
+	should := require.New(t)
+	var nilSlice []byte
+	bytes, err := json.Marshal(nilSlice)
+	should.Nil(err)
+	should.Equal(`null`, string(bytes))
+	bytes, err = jsoniter.Marshal(nilSlice)
+	should.Nil(err)
+	should.Equal(`null`, string(bytes))
+}
+
+func Test_decode_byte_array_from_base64(t *testing.T) {
+	should := require.New(t)
+	data := []byte{}
+	err := json.Unmarshal([]byte(`"AQID"`), &data)
+	should.Nil(err)
+	should.Equal([]byte{1, 2, 3}, data)
+	err = jsoniter.Unmarshal([]byte(`"AQID"`), &data)
+	should.Nil(err)
+	should.Equal([]byte{1, 2, 3}, data)
+}
+
+func Test_decode_byte_array_from_base64_with_newlines(t *testing.T) {
+	should := require.New(t)
+	data := []byte{}
+	err := json.Unmarshal([]byte(`"A\rQ\nID"`), &data)
+	should.Nil(err)
+	should.Equal([]byte{1, 2, 3}, data)
+	err = jsoniter.Unmarshal([]byte(`"A\rQ\nID"`), &data)
+	should.Nil(err)
+	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 = jsoniter.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.UnmarshalFromString(`["hello", "world"]`, &slice)
+	should.Equal([]string{"hello", "world"}, slice)
+}
+
+func Test_decode_large_slice(t *testing.T) {
+	should := require.New(t)
+	slice := make([]int, 0, 1)
+	jsoniter.UnmarshalFromString(`[1,2,3,4,5,6,7,8,9]`, &slice)
+	should.Equal([]int{1, 2, 3, 4, 5, 6, 7, 8, 9}, slice)
+}
+
+func Benchmark_jsoniter_array(b *testing.B) {
+	b.ReportAllocs()
+	input := []byte(`[1,2,3,4,5,6,7,8,9]`)
+	iter := jsoniter.ParseBytes(jsoniter.ConfigDefault, input)
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		iter.ResetBytes(input)
+		for iter.ReadArray() {
+			iter.ReadUint64()
+		}
+	}
+}
+
+func Benchmark_json_array(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		result := []interface{}{}
+		json.Unmarshal([]byte(`[1,2,3]`), &result)
+	}
+}

misc_tests/jsoniter_bool_test.go

@@ -0,0 +1,47 @@
+package misc_tests
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_true(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `true`)
+	should.True(iter.ReadBool())
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `true`)
+	should.Equal(true, iter.Read())
+}
+
+func Test_false(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `false`)
+	should.False(iter.ReadBool())
+}
+
+func Test_write_true_false(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, buf, 4096)
+	stream.WriteTrue()
+	stream.WriteFalse()
+	stream.WriteBool(false)
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("truefalsefalse", buf.String())
+}
+
+func Test_write_val_bool(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, buf, 4096)
+	stream.WriteVal(true)
+	should.Equal(stream.Buffered(), 4)
+	stream.Flush()
+	should.Equal(stream.Buffered(), 0)
+	should.Nil(stream.Error)
+	should.Equal("true", buf.String())
+}

misc_tests/jsoniter_float_test.go

@@ -0,0 +1,116 @@
+package misc_tests
+
+import (
+	"encoding/json"
+	"math"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_read_big_float(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `12.3`)
+	val := iter.ReadBigFloat()
+	val64, _ := val.Float64()
+	should.Equal(12.3, val64)
+}
+
+func Test_read_big_int(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `92233720368547758079223372036854775807`)
+	val := iter.ReadBigInt()
+	should.NotNil(val)
+	should.Equal(`92233720368547758079223372036854775807`, val.String())
+}
+
+func Test_read_float_as_interface(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `12.3`)
+	should.Equal(float64(12.3), iter.Read())
+}
+
+func Test_wrap_float(t *testing.T) {
+	should := require.New(t)
+	str, err := jsoniter.MarshalToString(jsoniter.WrapFloat64(12.3))
+	should.Nil(err)
+	should.Equal("12.3", str)
+}
+
+func Test_read_float64_cursor(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, "[1.23456789\n,2,3]")
+	should.True(iter.ReadArray())
+	should.Equal(1.23456789, iter.Read())
+	should.True(iter.ReadArray())
+	should.Equal(float64(2), iter.Read())
+}
+
+func Test_read_float_scientific(t *testing.T) {
+	should := require.New(t)
+	var obj interface{}
+	should.NoError(jsoniter.UnmarshalFromString(`1e1`, &obj))
+	should.Equal(float64(10), obj)
+	should.NoError(json.Unmarshal([]byte(`1e1`), &obj))
+	should.Equal(float64(10), obj)
+	should.NoError(jsoniter.UnmarshalFromString(`1.0e1`, &obj))
+	should.Equal(float64(10), obj)
+	should.NoError(json.Unmarshal([]byte(`1.0e1`), &obj))
+	should.Equal(float64(10), obj)
+}
+
+func Test_lossy_float_marshal(t *testing.T) {
+	should := require.New(t)
+	api := jsoniter.Config{MarshalFloatWith6Digits: true}.Froze()
+	output, err := api.MarshalToString(float64(0.1234567))
+	should.Nil(err)
+	should.Equal("0.123457", output)
+	output, err = api.MarshalToString(float32(0.1234567))
+	should.Nil(err)
+	should.Equal("0.123457", output)
+}
+
+func Test_read_number(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `92233720368547758079223372036854775807`)
+	val := iter.ReadNumber()
+	should.Equal(`92233720368547758079223372036854775807`, string(val))
+}
+
+func Test_encode_inf(t *testing.T) {
+	should := require.New(t)
+	_, err := json.Marshal(math.Inf(1))
+	should.Error(err)
+	_, err = jsoniter.Marshal(float32(math.Inf(1)))
+	should.Error(err)
+	_, err = jsoniter.Marshal(math.Inf(-1))
+	should.Error(err)
+}
+
+func Test_encode_nan(t *testing.T) {
+	should := require.New(t)
+	_, err := json.Marshal(math.NaN())
+	should.Error(err)
+	_, err = jsoniter.Marshal(float32(math.NaN()))
+	should.Error(err)
+	_, err = jsoniter.Marshal(math.NaN())
+	should.Error(err)
+}
+
+func Benchmark_jsoniter_float(b *testing.B) {
+	b.ReportAllocs()
+	input := []byte(`1.1123,`)
+	iter := jsoniter.NewIterator(jsoniter.ConfigDefault)
+	for n := 0; n < b.N; n++ {
+		iter.ResetBytes(input)
+		iter.ReadFloat64()
+	}
+}
+
+func Benchmark_json_float(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		result := float64(0)
+		json.Unmarshal([]byte(`1.1`), &result)
+	}
+}

misc_tests/jsoniter_int_test.go

@@ -0,0 +1,192 @@
+// +build go1.8
+
+package misc_tests
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"math/rand"
+	"strconv"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_read_uint64_invalid(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, ",")
+	iter.ReadUint64()
+	should.NotNil(iter.Error)
+}
+
+func Test_read_int32_array(t *testing.T) {
+	should := require.New(t)
+	input := `[123,456,789]`
+	val := make([]int32, 0)
+	jsoniter.UnmarshalFromString(input, &val)
+	should.Equal(3, len(val))
+}
+
+func Test_read_int64_array(t *testing.T) {
+	should := require.New(t)
+	input := `[123,456,789]`
+	val := make([]int64, 0)
+	jsoniter.UnmarshalFromString(input, &val)
+	should.Equal(3, len(val))
+}
+
+func Test_wrap_int(t *testing.T) {
+	should := require.New(t)
+	str, err := jsoniter.MarshalToString(jsoniter.WrapInt64(100))
+	should.Nil(err)
+	should.Equal("100", str)
+}
+
+func Test_write_val_int(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, buf, 4096)
+	stream.WriteVal(1001)
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("1001", buf.String())
+}
+
+func Test_write_val_int_ptr(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, buf, 4096)
+	val := 1001
+	stream.WriteVal(&val)
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("1001", buf.String())
+}
+
+func Test_float_as_int(t *testing.T) {
+	should := require.New(t)
+	var i int
+	should.NotNil(jsoniter.Unmarshal([]byte(`1.1`), &i))
+}
+
+// chunkedData is io.Reader which returns random amount of data in range [1, chunkedData.chunkSize].
+// It simulates chunked data on from HTTP server, which is commonly used by net/http package.
+type chunkedData struct {
+	chunkSize int
+	data      []byte
+	head      int
+}
+
+// Read is implementation of the io.Reader which returns random amount of data in range [1, chunkedData.chunkSize].
+func (c *chunkedData) Read(p []byte) (n int, err error) {
+	to := c.head + int(rand.Int31n(int32(c.chunkSize))+1)
+
+	// copy does not copy more data then p can consume
+	n = copy(p, c.data[c.head:to])
+	c.head = c.head + n
+	if c.head >= len(c.data) {
+		err = io.EOF
+	}
+	return n, err
+}
+
+// TestIterator_ReadInt_chunkedInput validates the behaviour of Iterator.ReadInt() method in where:
+// - it reads data from io.Reader,
+// - expected value is 0 (zero)
+// - Iterator.tail == Iterator.head
+// - Iterator.tail < len(Iterator.buf)
+// - value in buffer after Iterator.tail is presented from previous read and has '.' character.
+func TestIterator_ReadInt_chunkedInput(t *testing.T) {
+	should := require.New(t)
+
+	data := &chunkedData{
+		data: jsonFloatIntArray(t, 10),
+	}
+
+	// because this test is rely on randomness of chunkedData, we are doing multiple iterations to
+	// be sure, that we can hit a required case.
+	for data.chunkSize = 3; data.chunkSize <= len(data.data); data.chunkSize++ {
+		data.head = 0
+
+		iter := jsoniter.Parse(jsoniter.ConfigDefault, data, data.chunkSize)
+		i := 0
+		for iter.ReadArray() {
+			// every even item is float, let's just skip it.
+			if i%2 == 0 {
+				iter.Skip()
+				i++
+				continue
+			}
+
+			should.Zero(iter.ReadInt())
+			should.NoError(iter.Error)
+
+			i++
+		}
+	}
+}
+
+// jsonFloatIntArray generates JSON array where every
+//  - even item is float 0.1
+//  - odd item is integer 0
+//
+//  [0.1, 0, 0.1, 0]
+func jsonFloatIntArray(t *testing.T, numberOfItems int) []byte {
+	t.Helper()
+	numbers := make([]jsoniter.Any, numberOfItems)
+	for i := range numbers {
+		switch i % 2 {
+		case 0:
+			numbers[i] = jsoniter.WrapFloat64(0.1)
+		default:
+			numbers[i] = jsoniter.WrapInt64(0)
+		}
+	}
+
+	fixture, err := jsoniter.ConfigFastest.Marshal(numbers)
+	if err != nil {
+		panic(err)
+	}
+
+	b := &bytes.Buffer{}
+
+	require.NoError(
+		t,
+		json.Compact(b, fixture),
+		"json should be compactable",
+	)
+	return b.Bytes()
+}
+
+func Benchmark_jsoniter_encode_int(b *testing.B) {
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, ioutil.Discard, 64)
+	for n := 0; n < b.N; n++ {
+		stream.Reset(nil)
+		stream.WriteUint64(0xffffffff)
+	}
+}
+
+func Benchmark_itoa(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		strconv.FormatInt(0xffffffff, 10)
+	}
+}
+
+func Benchmark_jsoniter_int(b *testing.B) {
+	iter := jsoniter.NewIterator(jsoniter.ConfigDefault)
+	input := []byte(`100`)
+	for n := 0; n < b.N; n++ {
+		iter.ResetBytes(input)
+		iter.ReadInt64()
+	}
+}
+
+func Benchmark_json_int(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		result := int64(0)
+		json.Unmarshal([]byte(`-100`), &result)
+	}
+}

misc_tests/jsoniter_interface_test.go

@@ -0,0 +1,178 @@
+package misc_tests
+
+import (
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"io"
+	"testing"
+)
+
+func Test_nil_non_empty_interface(t *testing.T) {
+	type TestObject struct {
+		Field []io.Closer
+	}
+	should := require.New(t)
+	obj := TestObject{}
+	b := []byte(`{"Field":["AAA"]}`)
+	should.NotNil(json.Unmarshal(b, &obj))
+	should.NotNil(jsoniter.Unmarshal(b, &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 := jsoniter.Unmarshal(data1, &obj)
+	should.NoError(err)
+	should.Equal(true, *(obj.Field.(*bool)))
+
+	data2 := []byte(`{"field": null}`)
+
+	err = jsoniter.Unmarshal(data2, &obj)
+	should.NoError(err)
+	should.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_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.NoError(err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal(42, (*(wrapper.Payload.(**Payload))).Value)
+
+	err = json.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.NoError(err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal((*Payload)(nil), payload)
+
+	payload = &Payload{}
+	wrapper = &Wrapper{
+		Payload: &payload,
+	}
+
+	err = jsoniter.Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(&payload, wrapper.Payload)
+	should.Equal(42, (*(wrapper.Payload.(**Payload))).Value)
+
+	err = jsoniter.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.NoError(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.NoError(err)
+	should.Equal(42, wrapper.Payload.(*Payload).Value)
+
+	err = json.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.NoError(err)
+	should.Equal(nil, wrapper.Payload)
+	should.Equal(42, payload.Value)
+
+	payload = &Payload{}
+	wrapper = &Wrapper{
+		Payload: payload,
+	}
+
+	err = jsoniter.Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.Equal(nil, err)
+	should.Equal(42, wrapper.Payload.(*Payload).Value)
+
+	err = jsoniter.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.NoError(err)
+	should.NotNil(wrapper.Payload)
+	should.Nil(payload)
+
+	err = json.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.NoError(err)
+	should.Nil(wrapper.Payload)
+	should.Nil(payload)
+
+	payload = nil
+	wrapper = &Wrapper{
+		Payload: payload,
+	}
+
+	err = jsoniter.Unmarshal([]byte(`{"payload": {"val": 42}}`), &wrapper)
+	should.NoError(err)
+	should.NotNil(wrapper.Payload)
+	should.Nil(payload)
+
+	err = jsoniter.Unmarshal([]byte(`{"payload": null}`), &wrapper)
+	should.NoError(err)
+	should.Nil(wrapper.Payload)
+	should.Nil(payload)
+}

misc_tests/jsoniter_map_test.go

@@ -0,0 +1,52 @@
+package misc_tests
+
+import (
+	"encoding/json"
+	"math/big"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"strings"
+)
+
+func Test_decode_TextMarshaler_key_map(t *testing.T) {
+	should := require.New(t)
+	var val map[*big.Float]string
+	should.Nil(jsoniter.UnmarshalFromString(`{"1":"2"}`, &val))
+	str, err := jsoniter.MarshalToString(val)
+	should.Nil(err)
+	should.Equal(`{"1":"2"}`, str)
+}
+
+func Test_read_map_with_reader(t *testing.T) {
+	should := require.New(t)
+	input := `{"branch":"beta","change_log":"add the rows{10}","channel":"fros","create_time":"2017-06-13 16:39:08","firmware_list":"","md5":"80dee2bf7305bcf179582088e29fd7b9","note":{"CoreServices":{"md5":"d26975c0a8c7369f70ed699f2855cc2e","package_name":"CoreServices","version_code":"76","version_name":"1.0.76"},"FrDaemon":{"md5":"6b1f0626673200bc2157422cd2103f5d","package_name":"FrDaemon","version_code":"390","version_name":"1.0.390"},"FrGallery":{"md5":"90d767f0f31bcd3c1d27281ec979ba65","package_name":"FrGallery","version_code":"349","version_name":"1.0.349"},"FrLocal":{"md5":"f15a215b2c070a80a01f07bde4f219eb","package_name":"FrLocal","version_code":"791","version_name":"1.0.791"}},"pack_region_urls":{"CN":"https://s3.cn-north-1.amazonaws.com.cn/xxx-os/ttt_xxx_android_1.5.3.344.393.zip","default":"http://192.168.8.78/ttt_xxx_android_1.5.3.344.393.zip","local":"http://192.168.8.78/ttt_xxx_android_1.5.3.344.393.zip"},"pack_version":"1.5.3.344.393","pack_version_code":393,"region":"all","release_flag":0,"revision":62,"size":38966875,"status":3}`
+	reader := strings.NewReader(input)
+	decoder := jsoniter.ConfigCompatibleWithStandardLibrary.NewDecoder(reader)
+	m1 := map[string]interface{}{}
+	should.Nil(decoder.Decode(&m1))
+	m2 := map[string]interface{}{}
+	should.Nil(json.Unmarshal([]byte(input), &m2))
+	should.Equal(m2, m1)
+	should.Equal("1.0.76", m1["note"].(map[string]interface{})["CoreServices"].(map[string]interface{})["version_name"])
+}
+
+func Test_map_eface_of_eface(t *testing.T) {
+	should := require.New(t)
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
+	output, err := json.MarshalToString(map[interface{}]interface{}{
+		"1": 2,
+		3:   "4",
+	})
+	should.NoError(err)
+	should.Equal(`{"1":2,"3":"4"}`, output)
+}
+
+func Test_encode_nil_map(t *testing.T) {
+	should := require.New(t)
+	var nilMap map[string]string
+	output, err := jsoniter.MarshalToString(nilMap)
+	should.NoError(err)
+	should.Equal(`null`, output)
+}

misc_tests/jsoniter_nested_test.go

@@ -0,0 +1,327 @@
+package misc_tests
+
+import (
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+type Level1 struct {
+	Hello []Level2
+}
+
+type Level2 struct {
+	World string
+}
+
+func Test_deep_nested(t *testing.T) {
+	type unstructured interface{}
+
+	testcases := []struct {
+		name        string
+		data        []byte
+		expectError string
+	}{
+		{
+			name:        "array under maxDepth",
+			data:        []byte(`{"a":` + strings.Repeat(`[`, 10000-1) + strings.Repeat(`]`, 10000-1) + `}`),
+			expectError: "",
+		},
+		{
+			name:        "array over maxDepth",
+			data:        []byte(`{"a":` + strings.Repeat(`[`, 10000) + strings.Repeat(`]`, 10000) + `}`),
+			expectError: "max depth",
+		},
+		{
+			name:        "object under maxDepth",
+			data:        []byte(`{"a":` + strings.Repeat(`{"a":`, 10000-1) + `0` + strings.Repeat(`}`, 10000-1) + `}`),
+			expectError: "",
+		},
+		{
+			name:        "object over maxDepth",
+			data:        []byte(`{"a":` + strings.Repeat(`{"a":`, 10000) + `0` + strings.Repeat(`}`, 10000) + `}`),
+			expectError: "max depth",
+		},
+	}
+
+	targets := []struct {
+		name string
+		new  func() interface{}
+	}{
+		{
+			name: "unstructured",
+			new: func() interface{} {
+				var v interface{}
+				return &v
+			},
+		},
+		{
+			name: "typed named field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed missing field",
+			new: func() interface{} {
+				v := struct {
+					B interface{} `json:"b"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 1 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 2 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 3 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 4 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 5 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 6 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+					F interface{} `json:"f"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 7 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+					F interface{} `json:"f"`
+					G interface{} `json:"g"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 8 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+					F interface{} `json:"f"`
+					G interface{} `json:"g"`
+					H interface{} `json:"h"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 9 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+					F interface{} `json:"f"`
+					G interface{} `json:"g"`
+					H interface{} `json:"h"`
+					I interface{} `json:"i"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 10 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+					F interface{} `json:"f"`
+					G interface{} `json:"g"`
+					H interface{} `json:"h"`
+					I interface{} `json:"i"`
+					J interface{} `json:"j"`
+				}{}
+				return &v
+			},
+		},
+		{
+			name: "typed 11 field",
+			new: func() interface{} {
+				v := struct {
+					A interface{} `json:"a"`
+					B interface{} `json:"b"`
+					C interface{} `json:"c"`
+					D interface{} `json:"d"`
+					E interface{} `json:"e"`
+					F interface{} `json:"f"`
+					G interface{} `json:"g"`
+					H interface{} `json:"h"`
+					I interface{} `json:"i"`
+					J interface{} `json:"j"`
+					K interface{} `json:"k"`
+				}{}
+				return &v
+			},
+		},
+	}
+
+	for _, tc := range testcases {
+		t.Run(tc.name, func(t *testing.T) {
+			for _, target := range targets {
+				t.Run(target.name, func(t *testing.T) {
+					err := jsoniter.Unmarshal(tc.data, target.new())
+					if len(tc.expectError) == 0 {
+						if err != nil {
+							t.Errorf("unexpected error: %v", err)
+						}
+					} else {
+						if err == nil {
+							t.Errorf("expected error, got none")
+						} else if !strings.Contains(err.Error(), tc.expectError) {
+							t.Errorf("expected error containing '%s', got: %v", tc.expectError, err)
+						}
+					}
+				})
+			}
+		})
+	}
+}
+
+func Test_nested(t *testing.T) {
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `{"hello": [{"world": "value1"}, {"world": "value2"}]}`)
+	l1 := Level1{}
+	for l1Field := iter.ReadObject(); l1Field != ""; l1Field = iter.ReadObject() {
+		switch l1Field {
+		case "hello":
+			l2Array := []Level2{}
+			for iter.ReadArray() {
+				l2 := Level2{}
+				for l2Field := iter.ReadObject(); l2Field != ""; l2Field = iter.ReadObject() {
+					switch l2Field {
+					case "world":
+						l2.World = iter.ReadString()
+					default:
+						iter.ReportError("bind l2", "unexpected field: "+l2Field)
+					}
+				}
+				l2Array = append(l2Array, l2)
+			}
+			l1.Hello = l2Array
+		default:
+			iter.ReportError("bind l1", "unexpected field: "+l1Field)
+		}
+	}
+	if !reflect.DeepEqual(l1, Level1{
+		Hello: []Level2{
+			{World: "value1"},
+			{World: "value2"},
+		},
+	}) {
+		t.Fatal(l1)
+	}
+}
+
+func Benchmark_jsoniter_nested(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		iter := jsoniter.ParseString(jsoniter.ConfigDefault, `{"hello": [{"world": "value1"}, {"world": "value2"}]}`)
+		l1 := Level1{}
+		for l1Field := iter.ReadObject(); l1Field != ""; l1Field = iter.ReadObject() {
+			switch l1Field {
+			case "hello":
+				l1.Hello = readLevel1Hello(iter)
+			default:
+				iter.Skip()
+			}
+		}
+	}
+}
+
+func readLevel1Hello(iter *jsoniter.Iterator) []Level2 {
+	l2Array := make([]Level2, 0, 2)
+	for iter.ReadArray() {
+		l2 := Level2{}
+		for l2Field := iter.ReadObject(); l2Field != ""; l2Field = iter.ReadObject() {
+			switch l2Field {
+			case "world":
+				l2.World = iter.ReadString()
+			default:
+				iter.Skip()
+			}
+		}
+		l2Array = append(l2Array, l2)
+	}
+	return l2Array
+}
+
+func Benchmark_json_nested(b *testing.B) {
+	for n := 0; n < b.N; n++ {
+		l1 := Level1{}
+		json.Unmarshal([]byte(`{"hello": [{"world": "value1"}, {"world": "value2"}]}`), &l1)
+	}
+}

misc_tests/jsoniter_null_test.go

@@ -0,0 +1,81 @@
+package misc_tests
+
+import (
+	"bytes"
+	"io"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_read_null(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `null`)
+	should.True(iter.ReadNil())
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `null`)
+	should.Nil(iter.Read())
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `navy`)
+	iter.Read()
+	should.True(iter.Error != nil && iter.Error != io.EOF)
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `navy`)
+	iter.ReadNil()
+	should.True(iter.Error != nil && iter.Error != io.EOF)
+}
+
+func Test_write_null(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.ConfigDefault, buf, 4096)
+	stream.WriteNil()
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("null", buf.String())
+}
+
+func Test_decode_null_object_field(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
+	iter.ReadArray()
+	if iter.ReadObject() != "" {
+		t.FailNow()
+	}
+	iter.ReadArray()
+	if iter.ReadString() != "a" {
+		t.FailNow()
+	}
+	type TestObject struct {
+		Field string
+	}
+	objs := []TestObject{}
+	should.Nil(jsoniter.UnmarshalFromString("[null]", &objs))
+	should.Len(objs, 1)
+}
+
+func Test_decode_null_array_element(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
+	should.True(iter.ReadArray())
+	should.True(iter.ReadNil())
+	should.True(iter.ReadArray())
+	should.Equal("a", iter.ReadString())
+}
+
+func Test_decode_null_string(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
+	should.True(iter.ReadArray())
+	should.Equal("", iter.ReadString())
+	should.True(iter.ReadArray())
+	should.Equal("a", iter.ReadString())
+}
+
+func Test_decode_null_skip(t *testing.T) {
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `[null,"a"]`)
+	iter.ReadArray()
+	iter.Skip()
+	iter.ReadArray()
+	if iter.ReadString() != "a" {
+		t.FailNow()
+	}
+}

misc_tests/jsoniter_object_test.go

@@ -0,0 +1,372 @@
+package misc_tests
+
+import (
+	"bytes"
+	"reflect"
+	"testing"
+
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"strings"
+	"time"
+)
+
+func Test_empty_object(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `{}`)
+	field := iter.ReadObject()
+	should.Equal("", field)
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `{}`)
+	iter.ReadObjectCB(func(iter *jsoniter.Iterator, field string) bool {
+		should.FailNow("should not call")
+		return true
+	})
+}
+
+func Test_one_field(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `{"a": "stream"}`)
+	field := iter.ReadObject()
+	should.Equal("a", field)
+	value := iter.ReadString()
+	should.Equal("stream", value)
+	field = iter.ReadObject()
+	should.Equal("", field)
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `{"a": "stream"}`)
+	should.True(iter.ReadObjectCB(func(iter *jsoniter.Iterator, field string) bool {
+		should.Equal("a", field)
+		iter.Skip()
+		return true
+	}))
+
+}
+
+func Test_two_field(t *testing.T) {
+	should := require.New(t)
+	iter := jsoniter.ParseString(jsoniter.ConfigDefault, `{ "a": "stream" , "c": "d" }`)
+	field := iter.ReadObject()
+	should.Equal("a", field)
+	value := iter.ReadString()
+	should.Equal("stream", value)
+	field = iter.ReadObject()
+	should.Equal("c", field)
+	value = iter.ReadString()
+	should.Equal("d", value)
+	field = iter.ReadObject()
+	should.Equal("", field)
+	iter = jsoniter.ParseString(jsoniter.ConfigDefault, `{"field1": "1", "field2": 2}`)
+	for field := iter.ReadObject(); field != ""; field = iter.ReadObject() {
+		switch field {
+		case "field1":
+			iter.ReadString()
+		case "field2":
+			iter.ReadInt64()
+		default:
+			iter.ReportError("bind object", "unexpected field")
+		}
+	}
+}
+
+func Test_write_object(t *testing.T) {
+	should := require.New(t)
+	buf := &bytes.Buffer{}
+	stream := jsoniter.NewStream(jsoniter.Config{IndentionStep: 2}.Froze(), buf, 4096)
+	stream.WriteObjectStart()
+	stream.WriteObjectField("hello")
+	stream.WriteInt(1)
+	stream.WriteMore()
+	stream.WriteObjectField("world")
+	stream.WriteInt(2)
+	stream.WriteObjectEnd()
+	stream.Flush()
+	should.Nil(stream.Error)
+	should.Equal("{\n  \"hello\": 1,\n  \"world\": 2\n}", buf.String())
+}
+
+func Test_reader_and_load_more(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		CreatedAt time.Time
+	}
+	reader := strings.NewReader(`
+{
+	"agency": null,
+	"candidateId": 0,
+	"candidate": "Blah Blah",
+	"bookingId": 0,
+	"shiftId": 1,
+	"shiftTypeId": 0,
+	"shift": "Standard",
+	"bonus": 0,
+	"bonusNI": 0,
+	"days": [],
+	"totalHours": 27,
+	"expenses": [],
+	"weekEndingDateSystem": "2016-10-09",
+	"weekEndingDateClient": "2016-10-09",
+	"submittedAt": null,
+	"submittedById": null,
+	"approvedAt": "2016-10-10T18:38:04Z",
+	"approvedById": 0,
+	"authorisedAt": "2016-10-10T18:38:04Z",
+	"authorisedById": 0,
+	"invoicedAt": "2016-10-10T20:00:00Z",
+	"revokedAt": null,
+	"revokedById": null,
+	"revokeReason": null,
+	"rejectedAt": null,
+	"rejectedById": null,
+	"rejectReasonCode": null,
+	"rejectReason": null,
+	"createdAt": "2016-10-03T00:00:00Z",
+	"updatedAt": "2016-11-09T10:26:13Z",
+	"updatedById": null,
+	"overrides": [],
+	"bookingApproverId": null,
+	"bookingApprover": null,
+	"status": "approved"
+}
+	`)
+	decoder := jsoniter.ConfigCompatibleWithStandardLibrary.NewDecoder(reader)
+	obj := TestObject{}
+	should.Nil(decoder.Decode(&obj))
+}
+
+func Test_unmarshal_into_existing_value(t *testing.T) {
+	should := require.New(t)
+	type TestObject struct {
+		Field1 int
+		Field2 interface{}
+	}
+	var obj TestObject
+	m := map[string]interface{}{}
+	obj.Field2 = &m
+	cfg := jsoniter.Config{UseNumber: true}.Froze()
+	err := cfg.Unmarshal([]byte(`{"Field1":1,"Field2":{"k":"v"}}`), &obj)
+	should.NoError(err)
+	should.Equal(map[string]interface{}{
+		"k": "v",
+	}, m)
+}
+
+// for issue421
+func Test_unmarshal_anonymous_struct_invalid(t *testing.T) {
+	should := require.New(t)
+	t0 := struct {
+		Field1 string
+	}{}
+
+	cfg := jsoniter.ConfigCompatibleWithStandardLibrary
+	err := cfg.UnmarshalFromString(`{"Field1":`, &t0)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t0).String())
+
+	cfgCaseSensitive := jsoniter.Config{
+		CaseSensitive: true,
+	}.Froze()
+
+	type TestObject1 struct {
+		Field1 struct {
+			InnerField1 string
+		}
+	}
+	t1 := TestObject1{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field1":{"InnerField1"`, &t1)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t1.Field1).String())
+	should.Contains(err.Error(), reflect.TypeOf(t1).String())
+
+	type TestObject2 struct {
+		Field1 int
+		Field2 struct {
+			InnerField1 string
+			InnerField2 string
+		}
+	}
+	t2 := TestObject2{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field2":{"InnerField2"`, &t2)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t2.Field2).String())
+	should.Contains(err.Error(), reflect.TypeOf(t2).String())
+
+	type TestObject3 struct {
+		Field1 int
+		Field2 int
+		Field3 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+		}
+	}
+	t3 := TestObject3{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field3":{"InnerField3"`, &t3)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t3.Field3).String())
+	should.Contains(err.Error(), reflect.TypeOf(t3).String())
+
+	type TestObject4 struct {
+		Field1 int
+		Field2 int
+		Field3 int
+		Field4 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+			InnerField4 string
+		}
+	}
+	t4 := TestObject4{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field4":{"InnerField4"`, &t4)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t4.Field4).String())
+	should.Contains(err.Error(), reflect.TypeOf(t4).String())
+
+	type TestObject5 struct {
+		Field1 int
+		Field2 int
+		Field3 int
+		Field4 int
+		Field5 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+			InnerField4 string
+			InnerField5 string
+		}
+	}
+	t5 := TestObject5{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field5":{"InnerField5"`, &t5)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t5.Field5).String())
+	should.Contains(err.Error(), reflect.TypeOf(t5).String())
+
+	type TestObject6 struct {
+		Field1 int
+		Field2 int
+		Field3 int
+		Field4 int
+		Field5 int
+		Field6 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+			InnerField4 string
+			InnerField5 string
+			InnerField6 string
+		}
+	}
+	t6 := TestObject6{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field6":{"InnerField6"`, &t6)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t6.Field6).String())
+	should.Contains(err.Error(), reflect.TypeOf(t6).String())
+
+	type TestObject7 struct {
+		Field1 int
+		Field2 int
+		Field3 int
+		Field4 int
+		Field5 int
+		Field6 int
+		Field7 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+			InnerField4 string
+			InnerField5 string
+			InnerField6 string
+			InnerField7 string
+		}
+	}
+	t7 := TestObject7{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field7":{"InnerField7"`, &t7)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t7.Field7).String())
+	should.Contains(err.Error(), reflect.TypeOf(t7).String())
+
+	type TestObject8 struct {
+		Field1 int
+		Field2 int
+		Field3 int
+		Field4 int
+		Field5 int
+		Field6 int
+		Field7 int
+		Field8 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+			InnerField4 string
+			InnerField5 string
+			InnerField6 string
+			InnerField7 string
+			InnerField8 string
+		}
+	}
+	t8 := TestObject8{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field8":{"InnerField8"`, &t8)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t8.Field8).String())
+	should.Contains(err.Error(), reflect.TypeOf(t8).String())
+
+	type TestObject9 struct {
+		Field1 int
+		Field2 int
+		Field3 int
+		Field4 int
+		Field5 int
+		Field6 int
+		Field7 int
+		Field8 int
+		Field9 struct {
+			InnerField1 string
+			InnerField2 string
+			InnerField3 string
+			InnerField4 string
+			InnerField5 string
+			InnerField6 string
+			InnerField7 string
+			InnerField8 string
+			InnerField9 string
+		}
+	}
+	t9 := TestObject9{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field9":{"InnerField9"`, &t9)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t9.Field9).String())
+	should.Contains(err.Error(), reflect.TypeOf(t9).String())
+
+	type TestObject10 struct {
+		Field1  int
+		Field2  int
+		Field3  int
+		Field4  int
+		Field5  int
+		Field6  int
+		Field7  int
+		Field8  int
+		Field9  int
+		Field10 struct {
+			InnerField1  string
+			InnerField2  string
+			InnerField3  string
+			InnerField4  string
+			InnerField5  string
+			InnerField6  string
+			InnerField7  string
+			InnerField8  string
+			InnerField9  string
+			InnerField10 string
+		}
+	}
+	t10 := TestObject10{}
+	err = cfgCaseSensitive.UnmarshalFromString(`{"Field10":{"InnerField10"`, &t10)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t10.Field10).String())
+	should.Contains(err.Error(), reflect.TypeOf(t10).String())
+
+	err = cfg.UnmarshalFromString(`{"Field10":{"InnerField10"`, &t10)
+	should.NotNil(err)
+	should.NotContains(err.Error(), reflect.TypeOf(t10.Field10).String())
+	should.Contains(err.Error(), reflect.TypeOf(t10).String())
+}

misc_tests/jsoniter_raw_message_test.go

@@ -0,0 +1,87 @@
+package misc_tests
+
+import (
+	"encoding/json"
+	"github.com/json-iterator/go"
+	"github.com/stretchr/testify/require"
+	"strings"
+	"testing"
+)
+
+func Test_jsoniter_RawMessage(t *testing.T) {
+	should := require.New(t)
+	var data jsoniter.RawMessage
+	should.Nil(jsoniter.Unmarshal([]byte(`[1,2,3]`), &data))
+	should.Equal(`[1,2,3]`, string(data))
+	str, err := jsoniter.MarshalToString(data)
+	should.Nil(err)
+	should.Equal(`[1,2,3]`, str)
+}
+
+func Test_encode_map_of_jsoniter_raw_message(t *testing.T) {
+	should := require.New(t)
+	type RawMap map[string]*jsoniter.RawMessage
+	value := jsoniter.RawMessage("[]")
+	rawMap := RawMap{"hello": &value}
+	output, err := jsoniter.MarshalToString(rawMap)
+	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(jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(message, &a))
+	aout, aouterr := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(&a)
+	should.Equal(`{"raw":null}`, string(aout))
+	should.Nil(aouterr)
+}
+
+func Test_marshal_nil_json_raw_message(t *testing.T) {
+	type A struct {
+		Nil1 jsoniter.RawMessage `json:"raw1"`
+		Nil2 json.RawMessage     `json:"raw2"`
+	}
+
+	a := A{}
+	should := require.New(t)
+	aout, aouterr := jsoniter.Marshal(&a)
+	should.Equal(`{"raw1":null,"raw2":null}`, string(aout))
+	should.Nil(aouterr)
+
+	a.Nil1 = []byte(`Any`)
+	a.Nil2 = []byte(`Any`)
+	should.Nil(jsoniter.Unmarshal(aout, &a))
+	should.Nil(a.Nil1)
+	should.Nil(a.Nil2)
+}
+
+func Test_raw_message_memory_not_copied_issue(t *testing.T) {
+	jsonStream := `{"name":"xxxxx","bundle_id":"com.zonst.majiang","app_platform":"ios","app_category":"100103", "budget_day":1000,"bidding_min":1,"bidding_max":2,"bidding_type":"CPM", "freq":{"open":true,"type":"day","num":100},"speed":1, "targeting":{"vendor":{"open":true,"list":["zonst"]}, "geo_code":{"open":true,"list":["156110100"]},"app_category":{"open":true,"list":["100101"]}, "day_parting":{"open":true,"list":["100409","100410"]},"device_type":{"open":true,"list":["ipad"]}, "os_version":{"open":true,"list":[10]},"carrier":{"open":true,"list":["mobile"]}, "network":{"open":true,"list":["4G"]}},"url":{"tracking_imp_url":"http://www.baidu.com", "tracking_clk_url":"http://www.baidu.com","jump_url":"http://www.baidu.com","deep_link_url":"http://www.baidu.com"}}`
+	type IteratorObject struct {
+		Name        *string              `json:"name"`
+		BundleId    *string              `json:"bundle_id"`
+		AppCategory *string              `json:"app_category"`
+		AppPlatform *string              `json:"app_platform"`
+		BudgetDay   *float32             `json:"budget_day"`
+		BiddingMax  *float32             `json:"bidding_max"`
+		BiddingMin  *float32             `json:"bidding_min"`
+		BiddingType *string              `json:"bidding_type"`
+		Freq        *jsoniter.RawMessage `json:"freq"`
+		Targeting   *jsoniter.RawMessage `json:"targeting"`
+		Url         *jsoniter.RawMessage `json:"url"`
+		Speed       *int                 `json:"speed" db:"speed"`
+	}
+
+	obj := &IteratorObject{}
+	decoder := jsoniter.NewDecoder(strings.NewReader(jsonStream))
+	err := decoder.Decode(obj)
+	should := require.New(t)
+	should.Nil(err)
+	should.Equal(`{"open":true,"type":"day","num":100}`, string(*obj.Freq))
+}

pool.go

@@ -0,0 +1,42 @@
+package jsoniter
+
+import (
+	"io"
+)
+
+// IteratorPool a thread safe pool of iterators with same configuration
+type IteratorPool interface {
+	BorrowIterator(data []byte) *Iterator
+	ReturnIterator(iter *Iterator)
+}
+
+// StreamPool a thread safe pool of streams with same configuration
+type StreamPool interface {
+	BorrowStream(writer io.Writer) *Stream
+	ReturnStream(stream *Stream)
+}
+
+func (cfg *frozenConfig) BorrowStream(writer io.Writer) *Stream {
+	stream := cfg.streamPool.Get().(*Stream)
+	stream.Reset(writer)
+	return stream
+}
+
+func (cfg *frozenConfig) ReturnStream(stream *Stream) {
+	stream.out = nil
+	stream.Error = nil
+	stream.Attachment = nil
+	cfg.streamPool.Put(stream)
+}
+
+func (cfg *frozenConfig) BorrowIterator(data []byte) *Iterator {
+	iter := cfg.iteratorPool.Get().(*Iterator)
+	iter.ResetBytes(data)
+	return iter
+}
+
+func (cfg *frozenConfig) ReturnIterator(iter *Iterator) {
+	iter.Error = nil
+	iter.Attachment = nil
+	cfg.iteratorPool.Put(iter)
+}