vendor: github.com/coreos/etcd v3.3.25

full diff: https://github.com/coreos/etcd/compare/v3.3.12...v3.3.25

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 2bef937507)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor.conf

@@ -67,13 +67,15 @@ github.com/moby/ipvs                                4566ccea0e08d68e9614c3e7a64a
 github.com/BurntSushi/toml                          3012a1dbe2e4bd1391d42b32f0577cb7bbc7f005 # v0.3.1
 github.com/samuel/go-zookeeper                      d0e0d8e11f318e000a8cc434616d69e329edc374
 github.com/deckarep/golang-set                      ef32fa3046d9f249d399f98ebaf9be944430fd1d
-github.com/coreos/etcd                              d57e8b8d97adfc4a6c224fe116714bf1a1f3beb9 # v3.3.12
+github.com/coreos/etcd                              2c834459e1aab78a5d5219c7dfe42335fc4b617a # v3.3.25
 github.com/coreos/go-semver                         8ab6407b697782a06568d4b7f1db25550ec2e4c6 # v0.2.0
-github.com/ugorji/go                                b4c50a2b199d93b13dc15e78929cfb23bfdf21ab # v1.1.1
 github.com/hashicorp/consul                         9a9cc9341bb487651a0399e3fc5e1e8a42e62dd9 # v0.5.2
 github.com/miekg/dns                                6c0c4e6581f8e173cc562c8b3363ab984e4ae071 # v1.1.27
 github.com/ishidawataru/sctp                        f2269e66cdee387bd321445d5d300893449805be
 go.etcd.io/bbolt                                    232d8fc87f50244f9c808f4745759e08a304c029 # v1.3.5
+github.com/json-iterator/go                         a1ca0830781e007c66b225121d2cdb3a649421f6 # v1.1.10
+github.com/modern-go/concurrent                     bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94 # 1.0.3
+github.com/modern-go/reflect2                       94122c33edd36123c84d5368cfb2b69df93a0ec8 # v1.0.1
 
 # get graph and distribution packages
 github.com/docker/distribution                      dcf66392d606f50bf3a9286dcb4bdcdfb7c0e83a # v2.8.0

vendor/github.com/coreos/etcd/client/json.go

@@ -0,0 +1,72 @@
+// Copyright 2019 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package client
+
+import (
+	"github.com/json-iterator/go"
+	"github.com/modern-go/reflect2"
+	"strconv"
+	"unsafe"
+)
+
+type customNumberExtension struct {
+	jsoniter.DummyExtension
+}
+
+func (cne *customNumberExtension) CreateDecoder(typ reflect2.Type) jsoniter.ValDecoder {
+	if typ.String() == "interface {}" {
+		return customNumberDecoder{}
+	}
+	return nil
+}
+
+type customNumberDecoder struct {
+}
+
+func (customNumberDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	switch iter.WhatIsNext() {
+	case jsoniter.NumberValue:
+		var number jsoniter.Number
+		iter.ReadVal(&number)
+		i64, err := strconv.ParseInt(string(number), 10, 64)
+		if err == nil {
+			*(*interface{})(ptr) = i64
+			return
+		}
+		f64, err := strconv.ParseFloat(string(number), 64)
+		if err == nil {
+			*(*interface{})(ptr) = f64
+			return
+		}
+		iter.ReportError("DecodeNumber", err.Error())
+	default:
+		*(*interface{})(ptr) = iter.Read()
+	}
+}
+
+// caseSensitiveJsonIterator returns a jsoniterator API that's configured to be
+// case-sensitive when unmarshalling, and otherwise compatible with
+// the encoding/json standard library.
+func caseSensitiveJsonIterator() jsoniter.API {
+	config := jsoniter.Config{
+		EscapeHTML:             true,
+		SortMapKeys:            true,
+		ValidateJsonRawMessage: true,
+		CaseSensitive:          true,
+	}.Froze()
+	// Force jsoniter to decode number to interface{} via int64/float64, if possible.
+	config.RegisterExtension(&customNumberExtension{})
+	return config
+}

vendor/github.com/coreos/etcd/client/keys.go

@@ -14,8 +14,6 @@
 
 package client
 
-//go:generate codecgen -d 1819 -r "Node|Response|Nodes" -o keys.generated.go keys.go
-
 import (
 	"context"
 	"encoding/json"
@@ -28,7 +26,6 @@ import (
 	"time"
 
 	"github.com/coreos/etcd/pkg/pathutil"
-	"github.com/ugorji/go/codec"
 )
 
 const (
@@ -656,9 +653,11 @@ func unmarshalHTTPResponse(code int, header http.Header, body []byte) (res *Resp
 	return res, err
 }
 
+var jsonIterator = caseSensitiveJsonIterator()
+
 func unmarshalSuccessfulKeysResponse(header http.Header, body []byte) (*Response, error) {
 	var res Response
-	err := codec.NewDecoderBytes(body, new(codec.JsonHandle)).Decode(&res)
+	err := jsonIterator.Unmarshal(body, &res)
 	if err != nil {
 		return nil, ErrInvalidJSON
 	}

vendor/github.com/coreos/etcd/pkg/fileutil/dir_unix.go

@@ -18,5 +18,10 @@ package fileutil
 
 import "os"
 
+const (
+	// PrivateDirMode grants owner to make/remove files inside the directory.
+	PrivateDirMode = 0700
+)
+
 // OpenDir opens a directory for syncing.
 func OpenDir(path string) (*os.File, error) { return os.Open(path) }

vendor/github.com/coreos/etcd/pkg/fileutil/dir_windows.go

@@ -21,6 +21,11 @@ import (
 	"syscall"
 )
 
+const (
+	// PrivateDirMode grants owner to make/remove files inside the directory.
+	PrivateDirMode = 0777
+)
+
 // OpenDir opens a directory in windows with write access for syncing.
 func OpenDir(path string) (*os.File, error) {
 	fd, err := openDir(path)

vendor/github.com/coreos/etcd/pkg/fileutil/fileutil.go

@@ -29,8 +29,6 @@ import (
 const (
 	// PrivateFileMode grants owner to read/write a file.
 	PrivateFileMode = 0600
-	// PrivateDirMode grants owner to make/remove files inside the directory.
-	PrivateDirMode = 0700
 )
 
 var (
@@ -65,14 +63,22 @@ func ReadDir(dirpath string) ([]string, error) {
 // TouchDirAll is similar to os.MkdirAll. It creates directories with 0700 permission if any directory
 // does not exists. TouchDirAll also ensures the given directory is writable.
 func TouchDirAll(dir string) error {
-	// If path is already a directory, MkdirAll does nothing
-	// and returns nil.
-	err := os.MkdirAll(dir, PrivateDirMode)
-	if err != nil {
-		// if mkdirAll("a/text") and "text" is not
-		// a directory, this will return syscall.ENOTDIR
-		return err
+	// If path is already a directory, MkdirAll does nothing and returns nil, so,
+	// first check if dir exist with an expected permission mode.
+	if Exist(dir) {
+		err := CheckDirPermission(dir, PrivateDirMode)
+		if err != nil {
+			plog.Warningf("check file permission: %v", err)
+		}
+	} else {
+		err := os.MkdirAll(dir, PrivateDirMode)
+		if err != nil {
+			// if mkdirAll("a/text") and "text" is not
+			// a directory, this will return syscall.ENOTDIR
+			return err
+		}
 	}
+
 	return IsDirWriteable(dir)
 }
 
@@ -120,3 +126,22 @@ func ZeroToEnd(f *os.File) error {
 	_, err = f.Seek(off, io.SeekStart)
 	return err
 }
+
+// CheckDirPermission checks permission on an existing dir.
+// Returns error if dir is empty or exist with a different permission than specified.
+func CheckDirPermission(dir string, perm os.FileMode) error {
+	if !Exist(dir) {
+		return fmt.Errorf("directory %q empty, cannot check permission.", dir)
+	}
+	//check the existing permission on the directory
+	dirInfo, err := os.Stat(dir)
+	if err != nil {
+		return err
+	}
+	dirMode := dirInfo.Mode().Perm()
+	if dirMode != perm {
+		err = fmt.Errorf("directory %q exist, but the permission is %q. The recommended permission is %q to prevent possible unprivileged access to the data.", dir, dirInfo.Mode(), os.FileMode(PrivateDirMode))
+		return err
+	}
+	return nil
+}

vendor/github.com/coreos/etcd/pkg/fileutil/purge.go

@@ -23,13 +23,23 @@ import (
 )
 
 func PurgeFile(dirname string, suffix string, max uint, interval time.Duration, stop <-chan struct{}) <-chan error {
-	return purgeFile(dirname, suffix, max, interval, stop, nil)
+	return purgeFile(dirname, suffix, max, interval, stop, nil, nil)
+}
+
+func PurgeFileWithDoneNotify(dirname string, suffix string, max uint, interval time.Duration, stop <-chan struct{}) (<-chan struct{}, <-chan error) {
+	doneC := make(chan struct{})
+	errC := purgeFile(dirname, suffix, max, interval, stop, nil, doneC)
+	return doneC, errC
 }
 
 // purgeFile is the internal implementation for PurgeFile which can post purged files to purgec if non-nil.
-func purgeFile(dirname string, suffix string, max uint, interval time.Duration, stop <-chan struct{}, purgec chan<- string) <-chan error {
+// if donec is non-nil, the function closes it to notify its exit.
+func purgeFile(dirname string, suffix string, max uint, interval time.Duration, stop <-chan struct{}, purgec chan<- string, donec chan<- struct{}) <-chan error {
 	errC := make(chan error, 1)
 	go func() {
+		if donec != nil {
+			defer close(donec)
+		}
 		for {
 			fnames, err := ReadDir(dirname)
 			if err != nil {

vendor/github.com/coreos/etcd/pkg/ioutil/pagewriter.go

@@ -95,12 +95,23 @@ func (pw *PageWriter) Write(p []byte) (n int, err error) {
 	return n, werr
 }
 
+// Flush flushes buffered data.
 func (pw *PageWriter) Flush() error {
-	if pw.bufferedBytes == 0 {
-		return nil
-	}
-	_, err := pw.w.Write(pw.buf[:pw.bufferedBytes])
-	pw.pageOffset = (pw.pageOffset + pw.bufferedBytes) % pw.pageBytes
-	pw.bufferedBytes = 0
+	_, err := pw.flush()
 	return err
 }
+
+// FlushN flushes buffered data and returns the number of written bytes.
+func (pw *PageWriter) FlushN() (int, error) {
+	return pw.flush()
+}
+
+func (pw *PageWriter) flush() (int, error) {
+	if pw.bufferedBytes == 0 {
+		return 0, nil
+	}
+	n, err := pw.w.Write(pw.buf[:pw.bufferedBytes])
+	pw.pageOffset = (pw.pageOffset + pw.bufferedBytes) % pw.pageBytes
+	pw.bufferedBytes = 0
+	return n, err
+}

vendor/github.com/coreos/etcd/raft/logger.go

@@ -114,7 +114,7 @@ func (l *DefaultLogger) Fatalf(format string, v ...interface{}) {
 }
 
 func (l *DefaultLogger) Panic(v ...interface{}) {
-	l.Logger.Panic(v)
+	l.Logger.Panic(v...)
 }
 
 func (l *DefaultLogger) Panicf(format string, v ...interface{}) {

vendor/github.com/coreos/etcd/raft/raft.go

@@ -663,6 +663,7 @@ func (r *raft) becomePreCandidate() {
 	r.step = stepCandidate
 	r.votes = make(map[uint64]bool)
 	r.tick = r.tickElection
+	r.lead = None
 	r.state = StatePreCandidate
 	r.logger.Infof("%x became pre-candidate at term %d", r.id, r.Term)
 }

vendor/github.com/coreos/etcd/snap/snappb/snap.pb.go

@@ -1,27 +1,16 @@
 // Code generated by protoc-gen-gogo. DO NOT EDIT.
 // source: snap.proto
 
-/*
-	Package snappb is a generated protocol buffer package.
-
-	It is generated from these files:
-		snap.proto
-
-	It has these top-level messages:
-		Snapshot
-*/
 package snappb
 
 import (
-	"fmt"
-
-	proto "github.com/golang/protobuf/proto"
-
+	fmt "fmt"
+	io "io"
 	math "math"
+	math_bits "math/bits"
 
 	_ "github.com/gogo/protobuf/gogoproto"
-
-	io "io"
+	proto "github.com/golang/protobuf/proto"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -36,23 +25,68 @@ var _ = math.Inf
 const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
 type Snapshot struct {
-	Crc              uint32 `protobuf:"varint,1,opt,name=crc" json:"crc"`
-	Data             []byte `protobuf:"bytes,2,opt,name=data" json:"data,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
+	Crc                  uint32   `protobuf:"varint,1,opt,name=crc" json:"crc"`
+	Data                 []byte   `protobuf:"bytes,2,opt,name=data" json:"data,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (m *Snapshot) Reset()                    { *m = Snapshot{} }
-func (m *Snapshot) String() string            { return proto.CompactTextString(m) }
-func (*Snapshot) ProtoMessage()               {}
-func (*Snapshot) Descriptor() ([]byte, []int) { return fileDescriptorSnap, []int{0} }
+func (m *Snapshot) Reset()         { *m = Snapshot{} }
+func (m *Snapshot) String() string { return proto.CompactTextString(m) }
+func (*Snapshot) ProtoMessage()    {}
+func (*Snapshot) Descriptor() ([]byte, []int) {
+	return fileDescriptor_f2e3c045ebf84d00, []int{0}
+}
+func (m *Snapshot) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *Snapshot) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_Snapshot.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *Snapshot) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Snapshot.Merge(m, src)
+}
+func (m *Snapshot) XXX_Size() int {
+	return m.Size()
+}
+func (m *Snapshot) XXX_DiscardUnknown() {
+	xxx_messageInfo_Snapshot.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Snapshot proto.InternalMessageInfo
 
 func init() {
 	proto.RegisterType((*Snapshot)(nil), "snappb.snapshot")
 }
+
+func init() { proto.RegisterFile("snap.proto", fileDescriptor_f2e3c045ebf84d00) }
+
+var fileDescriptor_f2e3c045ebf84d00 = []byte{
+	// 126 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x2a, 0xce, 0x4b, 0x2c,
+	0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x03, 0xb1, 0x0b, 0x92, 0xa4, 0x44, 0xd2, 0xf3,
+	0xd3, 0xf3, 0xc1, 0x42, 0xfa, 0x20, 0x16, 0x44, 0x56, 0xc9, 0x8c, 0x8b, 0x03, 0x24, 0x5f, 0x9c,
+	0x91, 0x5f, 0x22, 0x24, 0xc6, 0xc5, 0x9c, 0x5c, 0x94, 0x2c, 0xc1, 0xa8, 0xc0, 0xa8, 0xc1, 0xeb,
+	0xc4, 0x72, 0xe2, 0x9e, 0x3c, 0x43, 0x10, 0x48, 0x40, 0x48, 0x88, 0x8b, 0x25, 0x25, 0xb1, 0x24,
+	0x51, 0x82, 0x49, 0x81, 0x51, 0x83, 0x27, 0x08, 0xcc, 0x76, 0x12, 0x39, 0xf1, 0x50, 0x8e, 0xe1,
+	0xc4, 0x23, 0x39, 0xc6, 0x0b, 0x8f, 0xe4, 0x18, 0x1f, 0x3c, 0x92, 0x63, 0x9c, 0xf1, 0x58, 0x8e,
+	0x01, 0x10, 0x00, 0x00, 0xff, 0xff, 0xd8, 0x0f, 0x32, 0xb2, 0x78, 0x00, 0x00, 0x00,
+}
+
 func (m *Snapshot) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -60,35 +94,47 @@ func (m *Snapshot) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *Snapshot) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Snapshot) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	dAtA[i] = 0x8
-	i++
-	i = encodeVarintSnap(dAtA, i, uint64(m.Crc))
-	if m.Data != nil {
-		dAtA[i] = 0x12
-		i++
-		i = encodeVarintSnap(dAtA, i, uint64(len(m.Data)))
-		i += copy(dAtA[i:], m.Data)
-	}
 	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
-	return i, nil
+	if m.Data != nil {
+		i -= len(m.Data)
+		copy(dAtA[i:], m.Data)
+		i = encodeVarintSnap(dAtA, i, uint64(len(m.Data)))
+		i--
+		dAtA[i] = 0x12
+	}
+	i = encodeVarintSnap(dAtA, i, uint64(m.Crc))
+	i--
+	dAtA[i] = 0x8
+	return len(dAtA) - i, nil
 }
 
 func encodeVarintSnap(dAtA []byte, offset int, v uint64) int {
+	offset -= sovSnap(v)
+	base := offset
 	for v >= 1<<7 {
 		dAtA[offset] = uint8(v&0x7f | 0x80)
 		v >>= 7
 		offset++
 	}
 	dAtA[offset] = uint8(v)
-	return offset + 1
+	return base
 }
 func (m *Snapshot) Size() (n int) {
+	if m == nil {
+		return 0
+	}
 	var l int
 	_ = l
 	n += 1 + sovSnap(uint64(m.Crc))
@@ -103,14 +149,7 @@ func (m *Snapshot) Size() (n int) {
 }
 
 func sovSnap(x uint64) (n int) {
-	for {
-		n++
-		x >>= 7
-		if x == 0 {
-			break
-		}
-	}
-	return n
+	return (math_bits.Len64(x|1) + 6) / 7
 }
 func sozSnap(x uint64) (n int) {
 	return sovSnap(uint64((x << 1) ^ uint64((int64(x) >> 63))))
@@ -130,7 +169,7 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 			}
 			b := dAtA[iNdEx]
 			iNdEx++
-			wire |= (uint64(b) & 0x7F) << shift
+			wire |= uint64(b&0x7F) << shift
 			if b < 0x80 {
 				break
 			}
@@ -158,7 +197,7 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				m.Crc |= (uint32(b) & 0x7F) << shift
+				m.Crc |= uint32(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -177,7 +216,7 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				byteLen |= (int(b) & 0x7F) << shift
+				byteLen |= int(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -186,6 +225,9 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 				return ErrInvalidLengthSnap
 			}
 			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthSnap
+			}
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
@@ -203,6 +245,9 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 			if skippy < 0 {
 				return ErrInvalidLengthSnap
 			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthSnap
+			}
 			if (iNdEx + skippy) > l {
 				return io.ErrUnexpectedEOF
 			}
@@ -270,10 +315,13 @@ func skipSnap(dAtA []byte) (n int, err error) {
 					break
 				}
 			}
-			iNdEx += length
 			if length < 0 {
 				return 0, ErrInvalidLengthSnap
 			}
+			iNdEx += length
+			if iNdEx < 0 {
+				return 0, ErrInvalidLengthSnap
+			}
 			return iNdEx, nil
 		case 3:
 			for {
@@ -302,6 +350,9 @@ func skipSnap(dAtA []byte) (n int, err error) {
 					return 0, err
 				}
 				iNdEx = start + next
+				if iNdEx < 0 {
+					return 0, ErrInvalidLengthSnap
+				}
 			}
 			return iNdEx, nil
 		case 4:
@@ -320,17 +371,3 @@ var (
 	ErrInvalidLengthSnap = fmt.Errorf("proto: negative length found during unmarshaling")
 	ErrIntOverflowSnap   = fmt.Errorf("proto: integer overflow")
 )
-
-func init() { proto.RegisterFile("snap.proto", fileDescriptorSnap) }
-
-var fileDescriptorSnap = []byte{
-	// 126 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x2a, 0xce, 0x4b, 0x2c,
-	0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x03, 0xb1, 0x0b, 0x92, 0xa4, 0x44, 0xd2, 0xf3,
-	0xd3, 0xf3, 0xc1, 0x42, 0xfa, 0x20, 0x16, 0x44, 0x56, 0xc9, 0x8c, 0x8b, 0x03, 0x24, 0x5f, 0x9c,
-	0x91, 0x5f, 0x22, 0x24, 0xc6, 0xc5, 0x9c, 0x5c, 0x94, 0x2c, 0xc1, 0xa8, 0xc0, 0xa8, 0xc1, 0xeb,
-	0xc4, 0x72, 0xe2, 0x9e, 0x3c, 0x43, 0x10, 0x48, 0x40, 0x48, 0x88, 0x8b, 0x25, 0x25, 0xb1, 0x24,
-	0x51, 0x82, 0x49, 0x81, 0x51, 0x83, 0x27, 0x08, 0xcc, 0x76, 0x12, 0x39, 0xf1, 0x50, 0x8e, 0xe1,
-	0xc4, 0x23, 0x39, 0xc6, 0x0b, 0x8f, 0xe4, 0x18, 0x1f, 0x3c, 0x92, 0x63, 0x9c, 0xf1, 0x58, 0x8e,
-	0x01, 0x10, 0x00, 0x00, 0xff, 0xff, 0xd8, 0x0f, 0x32, 0xb2, 0x78, 0x00, 0x00, 0x00,
-}

vendor/github.com/coreos/etcd/snap/snapshotter.go

@@ -23,6 +23,7 @@ import (
 	"os"
 	"path/filepath"
 	"sort"
+	"strconv"
 	"strings"
 	"time"
 
@@ -31,7 +32,7 @@ import (
 	"github.com/coreos/etcd/raft"
 	"github.com/coreos/etcd/raft/raftpb"
 	"github.com/coreos/etcd/snap/snappb"
-
+	"github.com/coreos/etcd/wal/walpb"
 	"github.com/coreos/pkg/capnslog"
 )
 
@@ -80,9 +81,8 @@ func (s *Snapshotter) save(snapshot *raftpb.Snapshot) error {
 	d, err := snap.Marshal()
 	if err != nil {
 		return err
-	} else {
-		marshallingDurations.Observe(float64(time.Since(start)) / float64(time.Second))
 	}
+	marshallingDurations.Observe(float64(time.Since(start)) / float64(time.Second))
 
 	err = pioutil.WriteAndSyncFile(filepath.Join(s.dir, fname), d, 0666)
 	if err == nil {
@@ -97,20 +97,35 @@ func (s *Snapshotter) save(snapshot *raftpb.Snapshot) error {
 }
 
 func (s *Snapshotter) Load() (*raftpb.Snapshot, error) {
+	return s.loadMatching(func(*raftpb.Snapshot) bool { return true })
+}
+
+// LoadNewestAvailable loads the newest snapshot available that is in walSnaps.
+func (s *Snapshotter) LoadNewestAvailable(walSnaps []walpb.Snapshot) (*raftpb.Snapshot, error) {
+	return s.loadMatching(func(snapshot *raftpb.Snapshot) bool {
+		m := snapshot.Metadata
+		for i := len(walSnaps) - 1; i >= 0; i-- {
+			if m.Term == walSnaps[i].Term && m.Index == walSnaps[i].Index {
+				return true
+			}
+		}
+		return false
+	})
+}
+
+// loadMatching returns the newest snapshot where matchFn returns true.
+func (s *Snapshotter) loadMatching(matchFn func(*raftpb.Snapshot) bool) (*raftpb.Snapshot, error) {
 	names, err := s.snapNames()
 	if err != nil {
 		return nil, err
 	}
 	var snap *raftpb.Snapshot
 	for _, name := range names {
-		if snap, err = loadSnap(s.dir, name); err == nil {
-			break
+		if snap, err = loadSnap(s.dir, name); err == nil && matchFn(snap) {
+			return snap, nil
 		}
 	}
-	if err != nil {
-		return nil, ErrNoSnapshot
-	}
-	return snap, nil
+	return nil, ErrNoSnapshot
 }
 
 func loadSnap(dir, name string) (*raftpb.Snapshot, error) {
@@ -172,6 +187,10 @@ func (s *Snapshotter) snapNames() ([]string, error) {
 	if err != nil {
 		return nil, err
 	}
+	names, err = s.cleanupSnapdir(names)
+	if err != nil {
+		return nil, err
+	}
 	snaps := checkSuffix(names)
 	if len(snaps) == 0 {
 		return nil, ErrNoSnapshot
@@ -202,3 +221,48 @@ func renameBroken(path string) {
 		plog.Warningf("cannot rename broken snapshot file %v to %v: %v", path, brokenPath, err)
 	}
 }
+
+// cleanupSnapdir removes any files that should not be in the snapshot directory:
+// - db.tmp prefixed files that can be orphaned by defragmentation
+func (s *Snapshotter) cleanupSnapdir(filenames []string) (names []string, err error) {
+	for _, filename := range filenames {
+		if strings.HasPrefix(filename, "db.tmp") {
+			plog.Infof("found orphaned defragmentation file; deleting: %s", filename)
+			if rmErr := os.Remove(filepath.Join(s.dir, filename)); rmErr != nil && !os.IsNotExist(rmErr) {
+				return nil, fmt.Errorf("failed to remove orphaned defragmentation file %s: %v", filename, rmErr)
+			}
+			continue
+		}
+		names = append(names, filename)
+	}
+	return names, nil
+}
+
+func (s *Snapshotter) ReleaseSnapDBs(snap raftpb.Snapshot) error {
+	dir, err := os.Open(s.dir)
+	if err != nil {
+		return err
+	}
+	defer dir.Close()
+	filenames, err := dir.Readdirnames(-1)
+	if err != nil {
+		return err
+	}
+	for _, filename := range filenames {
+		if strings.HasSuffix(filename, ".snap.db") {
+			hexIndex := strings.TrimSuffix(filepath.Base(filename), ".snap.db")
+			index, err := strconv.ParseUint(hexIndex, 16, 64)
+			if err != nil {
+				plog.Warningf("failed to parse index from filename: %s (%v)", filename, err)
+				continue
+			}
+			if index < snap.Metadata.Index {
+				plog.Infof("found orphaned .snap.db file; deleting %q", filename)
+				if rmErr := os.Remove(filepath.Join(s.dir, filename)); rmErr != nil && !os.IsNotExist(rmErr) {
+					plog.Warningf("failed to remove orphaned .snap.db file: %s (%v)", filename, rmErr)
+				}
+			}
+		}
+	}
+	return nil
+}

vendor/github.com/coreos/etcd/version/version.go

@@ -26,7 +26,7 @@ import (
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "3.0.0"
-	Version           = "3.3.12"
+	Version           = "3.3.25"
 	APIVersion        = "unknown"
 
 	// Git SHA Value will be set during build

vendor/github.com/coreos/etcd/wal/decoder.go

@@ -59,6 +59,11 @@ func (d *decoder) decode(rec *walpb.Record) error {
 	return d.decodeRecord(rec)
 }
 
+// raft max message size is set to 1 MB in etcd server
+// assume projects set reasonable message size limit,
+// thus entry size should never exceed 10 MB
+const maxWALEntrySizeLimit = int64(10 * 1024 * 1024)
+
 func (d *decoder) decodeRecord(rec *walpb.Record) error {
 	if len(d.brs) == 0 {
 		return io.EOF
@@ -79,6 +84,9 @@ func (d *decoder) decodeRecord(rec *walpb.Record) error {
 	}
 
 	recBytes, padBytes := decodeFrameSize(l)
+	if recBytes >= maxWALEntrySizeLimit-padBytes {
+		return ErrMaxWALEntrySizeLimitExceeded
+	}
 
 	data := make([]byte, recBytes+padBytes)
 	if _, err = io.ReadFull(d.brs[0], data); err != nil {

vendor/github.com/coreos/etcd/wal/encoder.go

@@ -92,7 +92,8 @@ func (e *encoder) encode(rec *walpb.Record) error {
 	if padBytes != 0 {
 		data = append(data, make([]byte, padBytes)...)
 	}
-	_, err = e.bw.Write(data)
+	n, err = e.bw.Write(data)
+	walWriteBytes.Add(float64(n))
 	return err
 }
 
@@ -108,13 +109,16 @@ func encodeFrameSize(dataBytes int) (lenField uint64, padBytes int) {
 
 func (e *encoder) flush() error {
 	e.mu.Lock()
-	defer e.mu.Unlock()
-	return e.bw.Flush()
+	n, err := e.bw.FlushN()
+	e.mu.Unlock()
+	walWriteBytes.Add(float64(n))
+	return err
 }
 
 func writeUint64(w io.Writer, n uint64, buf []byte) error {
 	// http://golang.org/src/encoding/binary/binary.go
 	binary.LittleEndian.PutUint64(buf, n)
-	_, err := w.Write(buf)
+	nv, err := w.Write(buf)
+	walWriteBytes.Add(float64(nv))
 	return err
 }

vendor/github.com/coreos/etcd/wal/metrics.go

@@ -24,8 +24,15 @@ var (
 		Help:      "The latency distributions of fsync called by wal.",
 		Buckets:   prometheus.ExponentialBuckets(0.001, 2, 14),
 	})
+	walWriteBytes = prometheus.NewGauge(prometheus.GaugeOpts{
+		Namespace: "etcd",
+		Subsystem: "disk",
+		Name:      "wal_write_bytes_total",
+		Help:      "Total number of bytes written in WAL.",
+	})
 )
 
 func init() {
 	prometheus.MustRegister(syncDurations)
+	prometheus.MustRegister(walWriteBytes)
 }

vendor/github.com/coreos/etcd/wal/repair.go

@@ -18,6 +18,7 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"time"
 
 	"github.com/coreos/etcd/pkg/fileutil"
 	"github.com/coreos/etcd/wal/walpb"
@@ -76,10 +77,14 @@ func Repair(dirpath string) bool {
 				plog.Errorf("could not repair %v, failed to truncate file", f.Name())
 				return false
 			}
+
+			start := time.Now()
 			if err = fileutil.Fsync(f.File); err != nil {
 				plog.Errorf("could not repair %v, failed to sync file", f.Name())
 				return false
 			}
+			syncDurations.Observe(time.Since(start).Seconds())
+
 			return true
 		default:
 			plog.Errorf("could not repair error (%v)", err)

vendor/github.com/coreos/etcd/wal/wal.go

@@ -55,12 +55,15 @@ var (
 
 	plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "wal")
 
-	ErrMetadataConflict = errors.New("wal: conflicting metadata found")
-	ErrFileNotFound     = errors.New("wal: file not found")
-	ErrCRCMismatch      = errors.New("wal: crc mismatch")
-	ErrSnapshotMismatch = errors.New("wal: snapshot mismatch")
-	ErrSnapshotNotFound = errors.New("wal: snapshot not found")
-	crcTable            = crc32.MakeTable(crc32.Castagnoli)
+	ErrMetadataConflict             = errors.New("wal: conflicting metadata found")
+	ErrFileNotFound                 = errors.New("wal: file not found")
+	ErrCRCMismatch                  = errors.New("wal: crc mismatch")
+	ErrSnapshotMismatch             = errors.New("wal: snapshot mismatch")
+	ErrSnapshotNotFound             = errors.New("wal: snapshot not found")
+	ErrSliceOutOfRange              = errors.New("wal: slice bounds out of range")
+	ErrMaxWALEntrySizeLimitExceeded = errors.New("wal: max entry size limit exceeded")
+	ErrDecoderNotFound              = errors.New("wal: decoder not found")
+	crcTable                        = crc32.MakeTable(crc32.Castagnoli)
 )
 
 // WAL is a logical representation of the stable storage.
@@ -90,7 +93,8 @@ type WAL struct {
 }
 
 // Create creates a WAL ready for appending records. The given metadata is
-// recorded at the head of each WAL file, and can be retrieved with ReadAll.
+// recorded at the head of each WAL file, and can be retrieved with ReadAll
+// after the file is Open.
 func Create(dirpath string, metadata []byte) (*WAL, error) {
 	if Exist(dirpath) {
 		return nil, os.ErrExist
@@ -147,9 +151,13 @@ func Create(dirpath string, metadata []byte) (*WAL, error) {
 	if perr != nil {
 		return nil, perr
 	}
+
+	start := time.Now()
 	if perr = fileutil.Fsync(pdir); perr != nil {
 		return nil, perr
 	}
+	syncDurations.Observe(time.Since(start).Seconds())
+
 	if perr = pdir.Close(); err != nil {
 		return nil, perr
 	}
@@ -223,44 +231,16 @@ func OpenForRead(dirpath string, snap walpb.Snapshot) (*WAL, error) {
 }
 
 func openAtIndex(dirpath string, snap walpb.Snapshot, write bool) (*WAL, error) {
-	names, err := readWalNames(dirpath)
+	names, nameIndex, err := selectWALFiles(dirpath, snap)
 	if err != nil {
 		return nil, err
 	}
 
-	nameIndex, ok := searchIndex(names, snap.Index)
-	if !ok || !isValidSeq(names[nameIndex:]) {
-		return nil, ErrFileNotFound
+	rs, ls, closer, err := openWALFiles(dirpath, names, nameIndex, write)
+	if err != nil {
+		return nil, err
 	}
 
-	// open the wal files
-	rcs := make([]io.ReadCloser, 0)
-	rs := make([]io.Reader, 0)
-	ls := make([]*fileutil.LockedFile, 0)
-	for _, name := range names[nameIndex:] {
-		p := filepath.Join(dirpath, name)
-		if write {
-			l, err := fileutil.TryLockFile(p, os.O_RDWR, fileutil.PrivateFileMode)
-			if err != nil {
-				closeAll(rcs...)
-				return nil, err
-			}
-			ls = append(ls, l)
-			rcs = append(rcs, l)
-		} else {
-			rf, err := os.OpenFile(p, os.O_RDONLY, fileutil.PrivateFileMode)
-			if err != nil {
-				closeAll(rcs...)
-				return nil, err
-			}
-			ls = append(ls, nil)
-			rcs = append(rcs, rf)
-		}
-		rs = append(rs, rcs[len(rcs)-1])
-	}
-
-	closer := func() error { return closeAll(rcs...) }
-
 	// create a WAL ready for reading
 	w := &WAL{
 		dir:       dirpath,
@@ -284,6 +264,52 @@ func openAtIndex(dirpath string, snap walpb.Snapshot, write bool) (*WAL, error)
 	return w, nil
 }
 
+func selectWALFiles(dirpath string, snap walpb.Snapshot) ([]string, int, error) {
+	names, err := readWalNames(dirpath)
+	if err != nil {
+		return nil, -1, err
+	}
+
+	nameIndex, ok := searchIndex(names, snap.Index)
+	if !ok || !isValidSeq(names[nameIndex:]) {
+		err = ErrFileNotFound
+		return nil, -1, err
+	}
+
+	return names, nameIndex, nil
+}
+
+func openWALFiles(dirpath string, names []string, nameIndex int, write bool) ([]io.Reader, []*fileutil.LockedFile, func() error, error) {
+	rcs := make([]io.ReadCloser, 0)
+	rs := make([]io.Reader, 0)
+	ls := make([]*fileutil.LockedFile, 0)
+	for _, name := range names[nameIndex:] {
+		p := filepath.Join(dirpath, name)
+		if write {
+			l, err := fileutil.TryLockFile(p, os.O_RDWR, fileutil.PrivateFileMode)
+			if err != nil {
+				closeAll(rcs...)
+				return nil, nil, nil, err
+			}
+			ls = append(ls, l)
+			rcs = append(rcs, l)
+		} else {
+			rf, err := os.OpenFile(p, os.O_RDONLY, fileutil.PrivateFileMode)
+			if err != nil {
+				closeAll(rcs...)
+				return nil, nil, nil, err
+			}
+			ls = append(ls, nil)
+			rcs = append(rcs, rf)
+		}
+		rs = append(rs, rcs[len(rcs)-1])
+	}
+
+	closer := func() error { return closeAll(rcs...) }
+
+	return rs, ls, closer, nil
+}
+
 // ReadAll reads out records of the current WAL.
 // If opened in write mode, it must read out all records until EOF. Or an error
 // will be returned.
@@ -299,6 +325,10 @@ func (w *WAL) ReadAll() (metadata []byte, state raftpb.HardState, ents []raftpb.
 	defer w.mu.Unlock()
 
 	rec := &walpb.Record{}
+
+	if w.decoder == nil {
+		return nil, state, nil, ErrDecoderNotFound
+	}
 	decoder := w.decoder
 
 	var match bool
@@ -306,8 +336,15 @@ func (w *WAL) ReadAll() (metadata []byte, state raftpb.HardState, ents []raftpb.
 		switch rec.Type {
 		case entryType:
 			e := mustUnmarshalEntry(rec.Data)
+			// 0 <= e.Index-w.start.Index - 1 < len(ents)
 			if e.Index > w.start.Index {
-				ents = append(ents[:e.Index-w.start.Index-1], e)
+				// prevent "panic: runtime error: slice bounds out of range [:13038096702221461992] with capacity 0"
+				up := e.Index - w.start.Index - 1
+				if up > uint64(len(ents)) {
+					// return error before append call causes runtime panic
+					return nil, state, nil, ErrSliceOutOfRange
+				}
+				ents = append(ents[:up], e)
 			}
 			w.enti = e.Index
 		case stateType:
@@ -398,6 +435,150 @@ func (w *WAL) ReadAll() (metadata []byte, state raftpb.HardState, ents []raftpb.
 	return metadata, state, ents, err
 }
 
+// ValidSnapshotEntries returns all the valid snapshot entries in the wal logs in the given directory.
+// Snapshot entries are valid if their index is less than or equal to the most recent committed hardstate.
+func ValidSnapshotEntries(walDir string) ([]walpb.Snapshot, error) {
+	var snaps []walpb.Snapshot
+	var state raftpb.HardState
+	var err error
+
+	rec := &walpb.Record{}
+	names, err := readWalNames(walDir)
+	if err != nil {
+		return nil, err
+	}
+
+	// open wal files in read mode, so that there is no conflict
+	// when the same WAL is opened elsewhere in write mode
+	rs, _, closer, err := openWALFiles(walDir, names, 0, false)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if closer != nil {
+			closer()
+		}
+	}()
+
+	// create a new decoder from the readers on the WAL files
+	decoder := newDecoder(rs...)
+
+	for err = decoder.decode(rec); err == nil; err = decoder.decode(rec) {
+		switch rec.Type {
+		case snapshotType:
+			var loadedSnap walpb.Snapshot
+			pbutil.MustUnmarshal(&loadedSnap, rec.Data)
+			snaps = append(snaps, loadedSnap)
+		case stateType:
+			state = mustUnmarshalState(rec.Data)
+		case crcType:
+			crc := decoder.crc.Sum32()
+			// current crc of decoder must match the crc of the record.
+			// do no need to match 0 crc, since the decoder is a new one at this case.
+			if crc != 0 && rec.Validate(crc) != nil {
+				return nil, ErrCRCMismatch
+			}
+			decoder.updateCRC(rec.Crc)
+		}
+	}
+	// We do not have to read out all the WAL entries
+	// as the decoder is opened in read mode.
+	if err != io.EOF && err != io.ErrUnexpectedEOF {
+		return nil, err
+	}
+
+	// filter out any snaps that are newer than the committed hardstate
+	n := 0
+	for _, s := range snaps {
+		if s.Index <= state.Commit {
+			snaps[n] = s
+			n++
+		}
+	}
+	snaps = snaps[:n:n]
+
+	return snaps, nil
+}
+
+// Verify reads through the given WAL and verifies that it is not corrupted.
+// It creates a new decoder to read through the records of the given WAL.
+// It does not conflict with any open WAL, but it is recommended not to
+// call this function after opening the WAL for writing.
+// If it cannot read out the expected snap, it will return ErrSnapshotNotFound.
+// If the loaded snap doesn't match with the expected one, it will
+// return error ErrSnapshotMismatch.
+func Verify(walDir string, snap walpb.Snapshot) error {
+	var metadata []byte
+	var err error
+	var match bool
+
+	rec := &walpb.Record{}
+
+	names, nameIndex, err := selectWALFiles(walDir, snap)
+	if err != nil {
+		return err
+	}
+
+	// open wal files in read mode, so that there is no conflict
+	// when the same WAL is opened elsewhere in write mode
+	rs, _, closer, err := openWALFiles(walDir, names, nameIndex, false)
+	if err != nil {
+		return err
+	}
+
+	// create a new decoder from the readers on the WAL files
+	decoder := newDecoder(rs...)
+
+	for err = decoder.decode(rec); err == nil; err = decoder.decode(rec) {
+		switch rec.Type {
+		case metadataType:
+			if metadata != nil && !bytes.Equal(metadata, rec.Data) {
+				return ErrMetadataConflict
+			}
+			metadata = rec.Data
+		case crcType:
+			crc := decoder.crc.Sum32()
+			// Current crc of decoder must match the crc of the record.
+			// We need not match 0 crc, since the decoder is a new one at this point.
+			if crc != 0 && rec.Validate(crc) != nil {
+				return ErrCRCMismatch
+			}
+			decoder.updateCRC(rec.Crc)
+		case snapshotType:
+			var loadedSnap walpb.Snapshot
+			pbutil.MustUnmarshal(&loadedSnap, rec.Data)
+			if loadedSnap.Index == snap.Index {
+				if loadedSnap.Term != snap.Term {
+					return ErrSnapshotMismatch
+				}
+				match = true
+			}
+		// We ignore all entry and state type records as these
+		// are not necessary for validating the WAL contents
+		case entryType:
+		case stateType:
+		default:
+			return fmt.Errorf("unexpected block type %d", rec.Type)
+		}
+	}
+
+	if closer != nil {
+		closer()
+	}
+
+	// We do not have to read out all the WAL entries
+	// as the decoder is opened in read mode.
+	if err != io.EOF && err != io.ErrUnexpectedEOF {
+		return err
+	}
+
+	if !match {
+		return ErrSnapshotNotFound
+	}
+
+	return nil
+}
+
 // cut closes current file written and creates a new one ready to append.
 // cut first creates a temp wal file and writes necessary headers into it.
 // Then cut atomically rename temp wal file to a wal file.
@@ -451,9 +632,12 @@ func (w *WAL) cut() error {
 	if err = os.Rename(newTail.Name(), fpath); err != nil {
 		return err
 	}
+
+	start := time.Now()
 	if err = fileutil.Fsync(w.dirFile); err != nil {
 		return err
 	}
+	syncDurations.Observe(time.Since(start).Seconds())
 
 	// reopen newTail with its new path so calls to Name() match the wal filename format
 	newTail.Close()
@@ -495,6 +679,10 @@ func (w *WAL) sync() error {
 	return err
 }
 
+func (w *WAL) Sync() error {
+	return w.sync()
+}
+
 // ReleaseLockTo releases the locks, which has smaller index than the given index
 // except the largest one among them.
 // For example, if WAL is holding lock 1,2,3,4,5,6, ReleaseLockTo(4) will release

vendor/github.com/coreos/etcd/wal/walpb/record.pb.go

@@ -1,28 +1,16 @@
 // Code generated by protoc-gen-gogo. DO NOT EDIT.
 // source: record.proto
 
-/*
-	Package walpb is a generated protocol buffer package.
-
-	It is generated from these files:
-		record.proto
-
-	It has these top-level messages:
-		Record
-		Snapshot
-*/
 package walpb
 
 import (
-	"fmt"
-
-	proto "github.com/golang/protobuf/proto"
-
+	fmt "fmt"
+	io "io"
 	math "math"
+	math_bits "math/bits"
 
 	_ "github.com/gogo/protobuf/gogoproto"
-
-	io "io"
+	proto "github.com/golang/protobuf/proto"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -37,36 +25,115 @@ var _ = math.Inf
 const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
 type Record struct {
-	Type             int64  `protobuf:"varint,1,opt,name=type" json:"type"`
-	Crc              uint32 `protobuf:"varint,2,opt,name=crc" json:"crc"`
-	Data             []byte `protobuf:"bytes,3,opt,name=data" json:"data,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
+	Type                 int64    `protobuf:"varint,1,opt,name=type" json:"type"`
+	Crc                  uint32   `protobuf:"varint,2,opt,name=crc" json:"crc"`
+	Data                 []byte   `protobuf:"bytes,3,opt,name=data" json:"data,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (m *Record) Reset()                    { *m = Record{} }
-func (m *Record) String() string            { return proto.CompactTextString(m) }
-func (*Record) ProtoMessage()               {}
-func (*Record) Descriptor() ([]byte, []int) { return fileDescriptorRecord, []int{0} }
+func (m *Record) Reset()         { *m = Record{} }
+func (m *Record) String() string { return proto.CompactTextString(m) }
+func (*Record) ProtoMessage()    {}
+func (*Record) Descriptor() ([]byte, []int) {
+	return fileDescriptor_bf94fd919e302a1d, []int{0}
+}
+func (m *Record) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *Record) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_Record.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *Record) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Record.Merge(m, src)
+}
+func (m *Record) XXX_Size() int {
+	return m.Size()
+}
+func (m *Record) XXX_DiscardUnknown() {
+	xxx_messageInfo_Record.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Record proto.InternalMessageInfo
 
 type Snapshot struct {
-	Index            uint64 `protobuf:"varint,1,opt,name=index" json:"index"`
-	Term             uint64 `protobuf:"varint,2,opt,name=term" json:"term"`
-	XXX_unrecognized []byte `json:"-"`
+	Index                uint64   `protobuf:"varint,1,opt,name=index" json:"index"`
+	Term                 uint64   `protobuf:"varint,2,opt,name=term" json:"term"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (m *Snapshot) Reset()                    { *m = Snapshot{} }
-func (m *Snapshot) String() string            { return proto.CompactTextString(m) }
-func (*Snapshot) ProtoMessage()               {}
-func (*Snapshot) Descriptor() ([]byte, []int) { return fileDescriptorRecord, []int{1} }
+func (m *Snapshot) Reset()         { *m = Snapshot{} }
+func (m *Snapshot) String() string { return proto.CompactTextString(m) }
+func (*Snapshot) ProtoMessage()    {}
+func (*Snapshot) Descriptor() ([]byte, []int) {
+	return fileDescriptor_bf94fd919e302a1d, []int{1}
+}
+func (m *Snapshot) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *Snapshot) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_Snapshot.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *Snapshot) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Snapshot.Merge(m, src)
+}
+func (m *Snapshot) XXX_Size() int {
+	return m.Size()
+}
+func (m *Snapshot) XXX_DiscardUnknown() {
+	xxx_messageInfo_Snapshot.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Snapshot proto.InternalMessageInfo
 
 func init() {
 	proto.RegisterType((*Record)(nil), "walpb.Record")
 	proto.RegisterType((*Snapshot)(nil), "walpb.Snapshot")
 }
+
+func init() { proto.RegisterFile("record.proto", fileDescriptor_bf94fd919e302a1d) }
+
+var fileDescriptor_bf94fd919e302a1d = []byte{
+	// 186 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x29, 0x4a, 0x4d, 0xce,
+	0x2f, 0x4a, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2d, 0x4f, 0xcc, 0x29, 0x48, 0x92,
+	0x12, 0x49, 0xcf, 0x4f, 0xcf, 0x07, 0x8b, 0xe8, 0x83, 0x58, 0x10, 0x49, 0x25, 0x3f, 0x2e, 0xb6,
+	0x20, 0xb0, 0x62, 0x21, 0x09, 0x2e, 0x96, 0x92, 0xca, 0x82, 0x54, 0x09, 0x46, 0x05, 0x46, 0x0d,
+	0x66, 0x27, 0x96, 0x13, 0xf7, 0xe4, 0x19, 0x82, 0xc0, 0x22, 0x42, 0x62, 0x5c, 0xcc, 0xc9, 0x45,
+	0xc9, 0x12, 0x4c, 0x0a, 0x8c, 0x1a, 0xbc, 0x50, 0x09, 0x90, 0x80, 0x90, 0x10, 0x17, 0x4b, 0x4a,
+	0x62, 0x49, 0xa2, 0x04, 0xb3, 0x02, 0xa3, 0x06, 0x4f, 0x10, 0x98, 0xad, 0xe4, 0xc0, 0xc5, 0x11,
+	0x9c, 0x97, 0x58, 0x50, 0x9c, 0x91, 0x5f, 0x22, 0x24, 0xc5, 0xc5, 0x9a, 0x99, 0x97, 0x92, 0x5a,
+	0x01, 0x36, 0x92, 0x05, 0xaa, 0x13, 0x22, 0x04, 0xb6, 0x2d, 0xb5, 0x28, 0x17, 0x6c, 0x28, 0x0b,
+	0xdc, 0xb6, 0xd4, 0xa2, 0x5c, 0x27, 0x91, 0x13, 0x0f, 0xe5, 0x18, 0x4e, 0x3c, 0x92, 0x63, 0xbc,
+	0xf0, 0x48, 0x8e, 0xf1, 0xc1, 0x23, 0x39, 0xc6, 0x19, 0x8f, 0xe5, 0x18, 0x00, 0x01, 0x00, 0x00,
+	0xff, 0xff, 0x7f, 0x5e, 0x5c, 0x46, 0xd3, 0x00, 0x00, 0x00,
+}
+
 func (m *Record) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -74,32 +141,39 @@ func (m *Record) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *Record) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Record) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	dAtA[i] = 0x8
-	i++
-	i = encodeVarintRecord(dAtA, i, uint64(m.Type))
-	dAtA[i] = 0x10
-	i++
-	i = encodeVarintRecord(dAtA, i, uint64(m.Crc))
-	if m.Data != nil {
-		dAtA[i] = 0x1a
-		i++
-		i = encodeVarintRecord(dAtA, i, uint64(len(m.Data)))
-		i += copy(dAtA[i:], m.Data)
-	}
 	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
-	return i, nil
+	if m.Data != nil {
+		i -= len(m.Data)
+		copy(dAtA[i:], m.Data)
+		i = encodeVarintRecord(dAtA, i, uint64(len(m.Data)))
+		i--
+		dAtA[i] = 0x1a
+	}
+	i = encodeVarintRecord(dAtA, i, uint64(m.Crc))
+	i--
+	dAtA[i] = 0x10
+	i = encodeVarintRecord(dAtA, i, uint64(m.Type))
+	i--
+	dAtA[i] = 0x8
+	return len(dAtA) - i, nil
 }
 
 func (m *Snapshot) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -107,32 +181,43 @@ func (m *Snapshot) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *Snapshot) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Snapshot) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	dAtA[i] = 0x8
-	i++
-	i = encodeVarintRecord(dAtA, i, uint64(m.Index))
-	dAtA[i] = 0x10
-	i++
-	i = encodeVarintRecord(dAtA, i, uint64(m.Term))
 	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
-	return i, nil
+	i = encodeVarintRecord(dAtA, i, uint64(m.Term))
+	i--
+	dAtA[i] = 0x10
+	i = encodeVarintRecord(dAtA, i, uint64(m.Index))
+	i--
+	dAtA[i] = 0x8
+	return len(dAtA) - i, nil
 }
 
 func encodeVarintRecord(dAtA []byte, offset int, v uint64) int {
+	offset -= sovRecord(v)
+	base := offset
 	for v >= 1<<7 {
 		dAtA[offset] = uint8(v&0x7f | 0x80)
 		v >>= 7
 		offset++
 	}
 	dAtA[offset] = uint8(v)
-	return offset + 1
+	return base
 }
 func (m *Record) Size() (n int) {
+	if m == nil {
+		return 0
+	}
 	var l int
 	_ = l
 	n += 1 + sovRecord(uint64(m.Type))
@@ -148,6 +233,9 @@ func (m *Record) Size() (n int) {
 }
 
 func (m *Snapshot) Size() (n int) {
+	if m == nil {
+		return 0
+	}
 	var l int
 	_ = l
 	n += 1 + sovRecord(uint64(m.Index))
@@ -159,14 +247,7 @@ func (m *Snapshot) Size() (n int) {
 }
 
 func sovRecord(x uint64) (n int) {
-	for {
-		n++
-		x >>= 7
-		if x == 0 {
-			break
-		}
-	}
-	return n
+	return (math_bits.Len64(x|1) + 6) / 7
 }
 func sozRecord(x uint64) (n int) {
 	return sovRecord(uint64((x << 1) ^ uint64((int64(x) >> 63))))
@@ -186,7 +267,7 @@ func (m *Record) Unmarshal(dAtA []byte) error {
 			}
 			b := dAtA[iNdEx]
 			iNdEx++
-			wire |= (uint64(b) & 0x7F) << shift
+			wire |= uint64(b&0x7F) << shift
 			if b < 0x80 {
 				break
 			}
@@ -214,7 +295,7 @@ func (m *Record) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				m.Type |= (int64(b) & 0x7F) << shift
+				m.Type |= int64(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -233,7 +314,7 @@ func (m *Record) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				m.Crc |= (uint32(b) & 0x7F) << shift
+				m.Crc |= uint32(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -252,7 +333,7 @@ func (m *Record) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				byteLen |= (int(b) & 0x7F) << shift
+				byteLen |= int(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -261,6 +342,9 @@ func (m *Record) Unmarshal(dAtA []byte) error {
 				return ErrInvalidLengthRecord
 			}
 			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthRecord
+			}
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
@@ -278,6 +362,9 @@ func (m *Record) Unmarshal(dAtA []byte) error {
 			if skippy < 0 {
 				return ErrInvalidLengthRecord
 			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthRecord
+			}
 			if (iNdEx + skippy) > l {
 				return io.ErrUnexpectedEOF
 			}
@@ -306,7 +393,7 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 			}
 			b := dAtA[iNdEx]
 			iNdEx++
-			wire |= (uint64(b) & 0x7F) << shift
+			wire |= uint64(b&0x7F) << shift
 			if b < 0x80 {
 				break
 			}
@@ -334,7 +421,7 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				m.Index |= (uint64(b) & 0x7F) << shift
+				m.Index |= uint64(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -353,7 +440,7 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				m.Term |= (uint64(b) & 0x7F) << shift
+				m.Term |= uint64(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
@@ -367,6 +454,9 @@ func (m *Snapshot) Unmarshal(dAtA []byte) error {
 			if skippy < 0 {
 				return ErrInvalidLengthRecord
 			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthRecord
+			}
 			if (iNdEx + skippy) > l {
 				return io.ErrUnexpectedEOF
 			}
@@ -434,10 +524,13 @@ func skipRecord(dAtA []byte) (n int, err error) {
 					break
 				}
 			}
-			iNdEx += length
 			if length < 0 {
 				return 0, ErrInvalidLengthRecord
 			}
+			iNdEx += length
+			if iNdEx < 0 {
+				return 0, ErrInvalidLengthRecord
+			}
 			return iNdEx, nil
 		case 3:
 			for {
@@ -466,6 +559,9 @@ func skipRecord(dAtA []byte) (n int, err error) {
 					return 0, err
 				}
 				iNdEx = start + next
+				if iNdEx < 0 {
+					return 0, ErrInvalidLengthRecord
+				}
 			}
 			return iNdEx, nil
 		case 4:
@@ -484,21 +580,3 @@ var (
 	ErrInvalidLengthRecord = fmt.Errorf("proto: negative length found during unmarshaling")
 	ErrIntOverflowRecord   = fmt.Errorf("proto: integer overflow")
 )
-
-func init() { proto.RegisterFile("record.proto", fileDescriptorRecord) }
-
-var fileDescriptorRecord = []byte{
-	// 186 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x29, 0x4a, 0x4d, 0xce,
-	0x2f, 0x4a, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2d, 0x4f, 0xcc, 0x29, 0x48, 0x92,
-	0x12, 0x49, 0xcf, 0x4f, 0xcf, 0x07, 0x8b, 0xe8, 0x83, 0x58, 0x10, 0x49, 0x25, 0x3f, 0x2e, 0xb6,
-	0x20, 0xb0, 0x62, 0x21, 0x09, 0x2e, 0x96, 0x92, 0xca, 0x82, 0x54, 0x09, 0x46, 0x05, 0x46, 0x0d,
-	0x66, 0x27, 0x96, 0x13, 0xf7, 0xe4, 0x19, 0x82, 0xc0, 0x22, 0x42, 0x62, 0x5c, 0xcc, 0xc9, 0x45,
-	0xc9, 0x12, 0x4c, 0x0a, 0x8c, 0x1a, 0xbc, 0x50, 0x09, 0x90, 0x80, 0x90, 0x10, 0x17, 0x4b, 0x4a,
-	0x62, 0x49, 0xa2, 0x04, 0xb3, 0x02, 0xa3, 0x06, 0x4f, 0x10, 0x98, 0xad, 0xe4, 0xc0, 0xc5, 0x11,
-	0x9c, 0x97, 0x58, 0x50, 0x9c, 0x91, 0x5f, 0x22, 0x24, 0xc5, 0xc5, 0x9a, 0x99, 0x97, 0x92, 0x5a,
-	0x01, 0x36, 0x92, 0x05, 0xaa, 0x13, 0x22, 0x04, 0xb6, 0x2d, 0xb5, 0x28, 0x17, 0x6c, 0x28, 0x0b,
-	0xdc, 0xb6, 0xd4, 0xa2, 0x5c, 0x27, 0x91, 0x13, 0x0f, 0xe5, 0x18, 0x4e, 0x3c, 0x92, 0x63, 0xbc,
-	0xf0, 0x48, 0x8e, 0xf1, 0xc1, 0x23, 0x39, 0xc6, 0x19, 0x8f, 0xe5, 0x18, 0x00, 0x01, 0x00, 0x00,
-	0xff, 0xff, 0x7f, 0x5e, 0x5c, 0x46, 0xd3, 0x00, 0x00, 0x00,
-}

vendor/github.com/json-iterator/go/LICENSE

@@ -1,7 +1,6 @@
-The MIT License (MIT)
+MIT License
 
-Copyright (c) 2012-2015 Ugorji Nwoke.
-All rights reserved.
+Copyright (c) 2016 json-iterator
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

vendor/github.com/json-iterator/go/README.md

@@ -0,0 +1,87 @@
+[![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)
+
+A high-performance 100% compatible drop-in replacement of "encoding/json"
+
+You can also use thrift like JSON using [thrift-iterator](https://github.com/thrift-iterator/go)
+
+# Benchmark
+
+![benchmark](http://jsoniter.com/benchmarks/go-benchmark.png)
+
+Source code: https://github.com/json-iterator/go-benchmark/blob/master/src/github.com/json-iterator/go-benchmark/benchmark_medium_payload_test.go
+
+Raw Result (easyjson requires static code generation)
+
+|                 | 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      |
+
+Always benchmark with your own workload.
+The result depends heavily on the data input.
+
+# Usage
+
+100% compatibility with standard lib
+
+Replace
+
+```go
+import "encoding/json"
+json.Marshal(&data)
+```
+
+with
+
+```go
+import jsoniter "github.com/json-iterator/go"
+
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+json.Marshal(&data)
+```
+
+Replace
+
+```go
+import "encoding/json"
+json.Unmarshal(input, &data)
+```
+
+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
+
+```
+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)

vendor/github.com/json-iterator/go/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)
+}

vendor/github.com/json-iterator/go/any.go

@@ -0,0 +1,325 @@
+package jsoniter
+
+import (
+	"errors"
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
+	"reflect"
+	"strconv"
+	"unsafe"
+)
+
+// Any generic object representation.
+// The lazy json implementation holds []byte and parse lazily.
+type Any 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)
+}
+
+type baseAny struct{}
+
+func (any *baseAny) Get(path ...interface{}) Any {
+	return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
+}
+
+func (any *baseAny) Size() int {
+	return 0
+}
+
+func (any *baseAny) Keys() []string {
+	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{}
+	}
+	asAny, isAny := val.(Any)
+	if isAny {
+		return asAny
+	}
+	typ := reflect2.TypeOf(val)
+	switch typ.Kind() {
+	case reflect.Slice:
+		return wrapArray(val)
+	case reflect.Struct:
+		return wrapStruct(val)
+	case reflect.Map:
+		return wrapMap(val)
+	case reflect.String:
+		return WrapString(val.(string))
+	case reflect.Int:
+		if strconv.IntSize == 32 {
+			return WrapInt32(int32(val.(int)))
+		}
+		return WrapInt64(int64(val.(int)))
+	case reflect.Int8:
+		return WrapInt32(int32(val.(int8)))
+	case reflect.Int16:
+		return WrapInt32(int32(val.(int16)))
+	case reflect.Int32:
+		return WrapInt32(val.(int32))
+	case reflect.Int64:
+		return WrapInt64(val.(int64))
+	case reflect.Uint:
+		if strconv.IntSize == 32 {
+			return WrapUint32(uint32(val.(uint)))
+		}
+		return WrapUint64(uint64(val.(uint)))
+	case reflect.Uintptr:
+		if ptrSize == 32 {
+			return WrapUint32(uint32(val.(uintptr)))
+		}
+		return WrapUint64(uint64(val.(uintptr)))
+	case reflect.Uint8:
+		return WrapUint32(uint32(val.(uint8)))
+	case reflect.Uint16:
+		return WrapUint32(uint32(val.(uint16)))
+	case reflect.Uint32:
+		return WrapUint32(uint32(val.(uint32)))
+	case reflect.Uint64:
+		return WrapUint64(val.(uint64))
+	case reflect.Float32:
+		return WrapFloat64(float64(val.(float32)))
+	case reflect.Float64:
+		return WrapFloat64(val.(float64))
+	case reflect.Bool:
+		if val.(bool) == true {
+			return &trueAny{}
+		}
+		return &falseAny{}
+	}
+	return &invalidAny{baseAny{}, fmt.Errorf("unsupported type: %v", typ)}
+}
+
+// ReadAny read next JSON element as an Any object. It is a better json.RawMessage.
+func (iter *Iterator) ReadAny() Any {
+	return iter.readAny()
+}
+
+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 iter.readNumberAny(true)
+	}
+}
+
+func (iter *Iterator) readNumberAny(positive bool) Any {
+	iter.startCapture(iter.head - 1)
+	iter.skipNumber()
+	lazyBuf := iter.stopCapture()
+	return &numberLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
+}
+
+func (iter *Iterator) readObjectAny() Any {
+	iter.startCapture(iter.head - 1)
+	iter.skipObject()
+	lazyBuf := iter.stopCapture()
+	return &objectLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
+}
+
+func (iter *Iterator) readArrayAny() Any {
+	iter.startCapture(iter.head - 1)
+	iter.skipArray()
+	lazyBuf := iter.stopCapture()
+	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
+}

vendor/github.com/json-iterator/go/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()
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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()
+}

vendor/github.com/json-iterator/go/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()
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+)

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/iter_float.go

@@ -0,0 +1,339 @@
+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)
+		}
+	}
+	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())
+}

vendor/github.com/json-iterator/go/iter_int.go

@@ -0,0 +1,345 @@
+package jsoniter
+
+import (
+	"math"
+	"strconv"
+)
+
+var intDigits []int8
+
+const uint32SafeToMultiply10 = uint32(0xffffffff)/10 - 1
+const uint64SafeToMultiple10 = uint64(0xffffffffffffffff)/10 - 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 < len(iter.buf) && iter.buf[iter.head] == '.' {
+		iter.ReportError("assertInteger", "can not decode float as int")
+	}
+}

vendor/github.com/json-iterator/go/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
+}

vendor/github.com/json-iterator/go/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
+	}
+}

vendor/github.com/json-iterator/go/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 \
+}

vendor/github.com/json-iterator/go/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
+	})
+}

vendor/github.com/json-iterator/go/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
+	}
+}

vendor/github.com/json-iterator/go/jsoniter.go

@@ -0,0 +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

vendor/github.com/json-iterator/go/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)
+}

vendor/github.com/json-iterator/go/reflect.go

@@ -0,0 +1,337 @@
+package jsoniter
+
+import (
+	"fmt"
+	"reflect"
+	"unsafe"
+
+	"github.com/modern-go/reflect2"
+)
+
+// ValDecoder is an internal type registered to cache as needed.
+// Don't confuse jsoniter.ValDecoder with json.Decoder.
+// For json.Decoder's adapter, refer to jsoniter.AdapterDecoder(todo link).
+//
+// Reflection on type to create decoders, which is then cached
+// Reflection on value is avoided as we can, as the reflect.Value itself will allocate, with following exceptions
+// 1. create instance of new value, for example *int will need a int to be allocated
+// 2. append to slice, if the existing cap is not enough, allocate will be done using Reflect.New
+// 3. assignment to map, both key and value will be reflect.Value
+// For a simple struct binding, it will be reflect.Value free and allocation free
+type ValDecoder interface {
+	Decode(ptr unsafe.Pointer, iter *Iterator)
+}
+
+// ValEncoder is an internal type registered to cache as needed.
+// Don't confuse jsoniter.ValEncoder with json.Encoder.
+// For json.Encoder's adapter, refer to jsoniter.AdapterEncoder(todo godoc link).
+type ValEncoder interface {
+	IsEmpty(ptr unsafe.Pointer) bool
+	Encode(ptr unsafe.Pointer, stream *Stream)
+}
+
+type checkIsEmpty interface {
+	IsEmpty(ptr unsafe.Pointer) bool
+}
+
+type ctx struct {
+	*frozenConfig
+	prefix   string
+	encoders map[reflect2.Type]ValEncoder
+	decoders map[reflect2.Type]ValDecoder
+}
+
+func (b *ctx) caseSensitive() bool {
+	if b.frozenConfig == nil {
+		// default is case-insensitive
+		return false
+	}
+	return b.frozenConfig.caseSensitive
+}
+
+func (b *ctx) append(prefix string) *ctx {
+	return &ctx{
+		frozenConfig: b.frozenConfig,
+		prefix:       b.prefix + " " + prefix,
+		encoders:     b.encoders,
+		decoders:     b.decoders,
+	}
+}
+
+// ReadVal copy the underlying JSON into go interface, same as json.Unmarshal
+func (iter *Iterator) ReadVal(obj interface{}) {
+	depth := iter.depth
+	cacheKey := reflect2.RTypeOf(obj)
+	decoder := iter.cfg.getDecoderFromCache(cacheKey)
+	if decoder == nil {
+		typ := reflect2.TypeOf(obj)
+		if typ.Kind() != reflect.Ptr {
+			iter.ReportError("ReadVal", "can only unmarshal into pointer")
+			return
+		}
+		decoder = iter.cfg.DecoderOf(typ)
+	}
+	ptr := reflect2.PtrOf(obj)
+	if ptr == nil {
+		iter.ReportError("ReadVal", "can not read into nil pointer")
+		return
+	}
+	decoder.Decode(ptr, iter)
+	if iter.depth != depth {
+		iter.ReportError("ReadVal", "unexpected mismatched nesting")
+		return
+	}
+}
+
+// WriteVal copy the go interface into underlying JSON, same as json.Marshal
+func (stream *Stream) WriteVal(val interface{}) {
+	if nil == val {
+		stream.WriteNil()
+		return
+	}
+	cacheKey := reflect2.RTypeOf(val)
+	encoder := stream.cfg.getEncoderFromCache(cacheKey)
+	if encoder == nil {
+		typ := reflect2.TypeOf(val)
+		encoder = stream.cfg.EncoderOf(typ)
+	}
+	encoder.Encode(reflect2.PtrOf(val), stream)
+}
+
+func (cfg *frozenConfig) DecoderOf(typ reflect2.Type) ValDecoder {
+	cacheKey := typ.RType()
+	decoder := cfg.getDecoderFromCache(cacheKey)
+	if decoder != nil {
+		return decoder
+	}
+	ctx := &ctx{
+		frozenConfig: cfg,
+		prefix:       "",
+		decoders:     map[reflect2.Type]ValDecoder{},
+		encoders:     map[reflect2.Type]ValEncoder{},
+	}
+	ptrType := typ.(*reflect2.UnsafePtrType)
+	decoder = decoderOfType(ctx, ptrType.Elem())
+	cfg.addDecoderToCache(cacheKey, decoder)
+	return decoder
+}
+
+func decoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder {
+	decoder := getTypeDecoderFromExtension(ctx, typ)
+	if decoder != nil {
+		return decoder
+	}
+	decoder = createDecoderOfType(ctx, typ)
+	for _, extension := range extensions {
+		decoder = extension.DecorateDecoder(typ, decoder)
+	}
+	decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder)
+	for _, extension := range ctx.extraExtensions {
+		decoder = extension.DecorateDecoder(typ, decoder)
+	}
+	return decoder
+}
+
+func createDecoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder {
+	decoder := ctx.decoders[typ]
+	if decoder != nil {
+		return decoder
+	}
+	placeholder := &placeholderDecoder{}
+	ctx.decoders[typ] = placeholder
+	decoder = _createDecoderOfType(ctx, typ)
+	placeholder.decoder = decoder
+	return decoder
+}
+
+func _createDecoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder {
+	decoder := createDecoderOfJsonRawMessage(ctx, typ)
+	if decoder != nil {
+		return decoder
+	}
+	decoder = createDecoderOfJsonNumber(ctx, typ)
+	if decoder != nil {
+		return decoder
+	}
+	decoder = createDecoderOfMarshaler(ctx, typ)
+	if decoder != nil {
+		return decoder
+	}
+	decoder = createDecoderOfAny(ctx, typ)
+	if decoder != nil {
+		return decoder
+	}
+	decoder = createDecoderOfNative(ctx, typ)
+	if decoder != nil {
+		return decoder
+	}
+	switch typ.Kind() {
+	case reflect.Interface:
+		ifaceType, isIFace := typ.(*reflect2.UnsafeIFaceType)
+		if isIFace {
+			return &ifaceDecoder{valType: ifaceType}
+		}
+		return &efaceDecoder{}
+	case reflect.Struct:
+		return decoderOfStruct(ctx, typ)
+	case reflect.Array:
+		return decoderOfArray(ctx, typ)
+	case reflect.Slice:
+		return decoderOfSlice(ctx, typ)
+	case reflect.Map:
+		return decoderOfMap(ctx, typ)
+	case reflect.Ptr:
+		return decoderOfOptional(ctx, typ)
+	default:
+		return &lazyErrorDecoder{err: fmt.Errorf("%s%s is unsupported type", ctx.prefix, typ.String())}
+	}
+}
+
+func (cfg *frozenConfig) EncoderOf(typ reflect2.Type) ValEncoder {
+	cacheKey := typ.RType()
+	encoder := cfg.getEncoderFromCache(cacheKey)
+	if encoder != nil {
+		return encoder
+	}
+	ctx := &ctx{
+		frozenConfig: cfg,
+		prefix:       "",
+		decoders:     map[reflect2.Type]ValDecoder{},
+		encoders:     map[reflect2.Type]ValEncoder{},
+	}
+	encoder = encoderOfType(ctx, typ)
+	if typ.LikePtr() {
+		encoder = &onePtrEncoder{encoder}
+	}
+	cfg.addEncoderToCache(cacheKey, encoder)
+	return encoder
+}
+
+type onePtrEncoder struct {
+	encoder ValEncoder
+}
+
+func (encoder *onePtrEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr))
+}
+
+func (encoder *onePtrEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	encoder.encoder.Encode(unsafe.Pointer(&ptr), stream)
+}
+
+func encoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder {
+	encoder := getTypeEncoderFromExtension(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	encoder = createEncoderOfType(ctx, typ)
+	for _, extension := range extensions {
+		encoder = extension.DecorateEncoder(typ, encoder)
+	}
+	encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder)
+	for _, extension := range ctx.extraExtensions {
+		encoder = extension.DecorateEncoder(typ, encoder)
+	}
+	return encoder
+}
+
+func createEncoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder {
+	encoder := ctx.encoders[typ]
+	if encoder != nil {
+		return encoder
+	}
+	placeholder := &placeholderEncoder{}
+	ctx.encoders[typ] = placeholder
+	encoder = _createEncoderOfType(ctx, typ)
+	placeholder.encoder = encoder
+	return encoder
+}
+func _createEncoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder {
+	encoder := createEncoderOfJsonRawMessage(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	encoder = createEncoderOfJsonNumber(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	encoder = createEncoderOfMarshaler(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	encoder = createEncoderOfAny(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	encoder = createEncoderOfNative(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	kind := typ.Kind()
+	switch kind {
+	case reflect.Interface:
+		return &dynamicEncoder{typ}
+	case reflect.Struct:
+		return encoderOfStruct(ctx, typ)
+	case reflect.Array:
+		return encoderOfArray(ctx, typ)
+	case reflect.Slice:
+		return encoderOfSlice(ctx, typ)
+	case reflect.Map:
+		return encoderOfMap(ctx, typ)
+	case reflect.Ptr:
+		return encoderOfOptional(ctx, typ)
+	default:
+		return &lazyErrorEncoder{err: fmt.Errorf("%s%s is unsupported type", ctx.prefix, typ.String())}
+	}
+}
+
+type lazyErrorDecoder struct {
+	err error
+}
+
+func (decoder *lazyErrorDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if iter.WhatIsNext() != NilValue {
+		if iter.Error == nil {
+			iter.Error = decoder.err
+		}
+	} else {
+		iter.Skip()
+	}
+}
+
+type lazyErrorEncoder struct {
+	err error
+}
+
+func (encoder *lazyErrorEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if ptr == nil {
+		stream.WriteNil()
+	} else if stream.Error == nil {
+		stream.Error = encoder.err
+	}
+}
+
+func (encoder *lazyErrorEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return false
+}
+
+type placeholderDecoder struct {
+	decoder ValDecoder
+}
+
+func (decoder *placeholderDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	decoder.decoder.Decode(ptr, iter)
+}
+
+type placeholderEncoder struct {
+	encoder ValEncoder
+}
+
+func (encoder *placeholderEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	encoder.encoder.Encode(ptr, stream)
+}
+
+func (encoder *placeholderEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.encoder.IsEmpty(ptr)
+}

vendor/github.com/json-iterator/go/reflect_array.go

@@ -0,0 +1,104 @@
+package jsoniter
+
+import (
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
+	"unsafe"
+)
+
+func decoderOfArray(ctx *ctx, typ reflect2.Type) ValDecoder {
+	arrayType := typ.(*reflect2.UnsafeArrayType)
+	decoder := decoderOfType(ctx.append("[arrayElem]"), arrayType.Elem())
+	return &arrayDecoder{arrayType, decoder}
+}
+
+func encoderOfArray(ctx *ctx, typ reflect2.Type) ValEncoder {
+	arrayType := typ.(*reflect2.UnsafeArrayType)
+	if arrayType.Len() == 0 {
+		return emptyArrayEncoder{}
+	}
+	encoder := encoderOfType(ctx.append("[arrayElem]"), arrayType.Elem())
+	return &arrayEncoder{arrayType, encoder}
+}
+
+type emptyArrayEncoder struct{}
+
+func (encoder emptyArrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteEmptyArray()
+}
+
+func (encoder emptyArrayEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return true
+}
+
+type arrayEncoder struct {
+	arrayType   *reflect2.UnsafeArrayType
+	elemEncoder ValEncoder
+}
+
+func (encoder *arrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteArrayStart()
+	elemPtr := unsafe.Pointer(ptr)
+	encoder.elemEncoder.Encode(elemPtr, stream)
+	for i := 1; i < encoder.arrayType.Len(); i++ {
+		stream.WriteMore()
+		elemPtr = encoder.arrayType.UnsafeGetIndex(ptr, i)
+		encoder.elemEncoder.Encode(elemPtr, stream)
+	}
+	stream.WriteArrayEnd()
+	if stream.Error != nil && stream.Error != io.EOF {
+		stream.Error = fmt.Errorf("%v: %s", encoder.arrayType, stream.Error.Error())
+	}
+}
+
+func (encoder *arrayEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return false
+}
+
+type arrayDecoder struct {
+	arrayType   *reflect2.UnsafeArrayType
+	elemDecoder ValDecoder
+}
+
+func (decoder *arrayDecoder) 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.arrayType, iter.Error.Error())
+	}
+}
+
+func (decoder *arrayDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
+	c := iter.nextToken()
+	arrayType := decoder.arrayType
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		return
+	}
+	if c != '[' {
+		iter.ReportError("decode array", "expect [ or n, but found "+string([]byte{c}))
+		return
+	}
+	c = iter.nextToken()
+	if c == ']' {
+		return
+	}
+	iter.unreadByte()
+	elemPtr := arrayType.UnsafeGetIndex(ptr, 0)
+	decoder.elemDecoder.Decode(elemPtr, iter)
+	length := 1
+	for c = iter.nextToken(); c == ','; c = iter.nextToken() {
+		if length >= arrayType.Len() {
+			iter.Skip()
+			continue
+		}
+		idx := length
+		length += 1
+		elemPtr = arrayType.UnsafeGetIndex(ptr, idx)
+		decoder.elemDecoder.Decode(elemPtr, iter)
+	}
+	if c != ']' {
+		iter.ReportError("decode array", "expect ], but found "+string([]byte{c}))
+		return
+	}
+}

vendor/github.com/json-iterator/go/reflect_dynamic.go

@@ -0,0 +1,70 @@
+package jsoniter
+
+import (
+	"github.com/modern-go/reflect2"
+	"reflect"
+	"unsafe"
+)
+
+type dynamicEncoder struct {
+	valType reflect2.Type
+}
+
+func (encoder *dynamicEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	obj := encoder.valType.UnsafeIndirect(ptr)
+	stream.WriteVal(obj)
+}
+
+func (encoder *dynamicEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.valType.UnsafeIndirect(ptr) == nil
+}
+
+type efaceDecoder struct {
+}
+
+func (decoder *efaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	pObj := (*interface{})(ptr)
+	obj := *pObj
+	if obj == nil {
+		*pObj = iter.Read()
+		return
+	}
+	typ := reflect2.TypeOf(obj)
+	if typ.Kind() != reflect.Ptr {
+		*pObj = iter.Read()
+		return
+	}
+	ptrType := typ.(*reflect2.UnsafePtrType)
+	ptrElemType := ptrType.Elem()
+	if iter.WhatIsNext() == NilValue {
+		if ptrElemType.Kind() != reflect.Ptr {
+			iter.skipFourBytes('n', 'u', 'l', 'l')
+			*pObj = nil
+			return
+		}
+	}
+	if reflect2.IsNil(obj) {
+		obj := ptrElemType.New()
+		iter.ReadVal(obj)
+		*pObj = obj
+		return
+	}
+	iter.ReadVal(obj)
+}
+
+type ifaceDecoder struct {
+	valType *reflect2.UnsafeIFaceType
+}
+
+func (decoder *ifaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if iter.ReadNil() {
+		decoder.valType.UnsafeSet(ptr, decoder.valType.UnsafeNew())
+		return
+	}
+	obj := decoder.valType.UnsafeIndirect(ptr)
+	if reflect2.IsNil(obj) {
+		iter.ReportError("decode non empty interface", "can not unmarshal into nil")
+		return
+	}
+	iter.ReadVal(obj)
+}

vendor/github.com/json-iterator/go/reflect_extension.go

@@ -0,0 +1,483 @@
+package jsoniter
+
+import (
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"reflect"
+	"sort"
+	"strings"
+	"unicode"
+	"unsafe"
+)
+
+var typeDecoders = map[string]ValDecoder{}
+var fieldDecoders = map[string]ValDecoder{}
+var typeEncoders = map[string]ValEncoder{}
+var fieldEncoders = map[string]ValEncoder{}
+var extensions = []Extension{}
+
+// StructDescriptor describe how should we encode/decode the struct
+type StructDescriptor struct {
+	Type   reflect2.Type
+	Fields []*Binding
+}
+
+// GetField get one field from the descriptor by its name.
+// Can not use map here to keep field orders.
+func (structDescriptor *StructDescriptor) GetField(fieldName string) *Binding {
+	for _, binding := range structDescriptor.Fields {
+		if binding.Field.Name() == fieldName {
+			return binding
+		}
+	}
+	return nil
+}
+
+// Binding describe how should we encode/decode the struct field
+type Binding struct {
+	levels    []int
+	Field     reflect2.StructField
+	FromNames []string
+	ToNames   []string
+	Encoder   ValEncoder
+	Decoder   ValDecoder
+}
+
+// Extension the one for all SPI. Customize encoding/decoding by specifying alternate encoder/decoder.
+// Can also rename fields by UpdateStructDescriptor.
+type Extension interface {
+	UpdateStructDescriptor(structDescriptor *StructDescriptor)
+	CreateMapKeyDecoder(typ reflect2.Type) ValDecoder
+	CreateMapKeyEncoder(typ reflect2.Type) ValEncoder
+	CreateDecoder(typ reflect2.Type) ValDecoder
+	CreateEncoder(typ reflect2.Type) ValEncoder
+	DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder
+	DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder
+}
+
+// DummyExtension embed this type get dummy implementation for all methods of Extension
+type DummyExtension struct {
+}
+
+// UpdateStructDescriptor No-op
+func (extension *DummyExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
+}
+
+// CreateMapKeyDecoder No-op
+func (extension *DummyExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
+	return nil
+}
+
+// CreateMapKeyEncoder No-op
+func (extension *DummyExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
+	return nil
+}
+
+// CreateDecoder No-op
+func (extension *DummyExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
+	return nil
+}
+
+// CreateEncoder No-op
+func (extension *DummyExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
+	return nil
+}
+
+// DecorateDecoder No-op
+func (extension *DummyExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
+	return decoder
+}
+
+// DecorateEncoder No-op
+func (extension *DummyExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
+	return encoder
+}
+
+type EncoderExtension map[reflect2.Type]ValEncoder
+
+// UpdateStructDescriptor No-op
+func (extension EncoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
+}
+
+// CreateDecoder No-op
+func (extension EncoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
+	return nil
+}
+
+// CreateEncoder get encoder from map
+func (extension EncoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
+	return extension[typ]
+}
+
+// CreateMapKeyDecoder No-op
+func (extension EncoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
+	return nil
+}
+
+// CreateMapKeyEncoder No-op
+func (extension EncoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
+	return nil
+}
+
+// DecorateDecoder No-op
+func (extension EncoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
+	return decoder
+}
+
+// DecorateEncoder No-op
+func (extension EncoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
+	return encoder
+}
+
+type DecoderExtension map[reflect2.Type]ValDecoder
+
+// UpdateStructDescriptor No-op
+func (extension DecoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
+}
+
+// CreateMapKeyDecoder No-op
+func (extension DecoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
+	return nil
+}
+
+// CreateMapKeyEncoder No-op
+func (extension DecoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
+	return nil
+}
+
+// CreateDecoder get decoder from map
+func (extension DecoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
+	return extension[typ]
+}
+
+// CreateEncoder No-op
+func (extension DecoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
+	return nil
+}
+
+// DecorateDecoder No-op
+func (extension DecoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
+	return decoder
+}
+
+// DecorateEncoder No-op
+func (extension DecoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
+	return encoder
+}
+
+type funcDecoder struct {
+	fun DecoderFunc
+}
+
+func (decoder *funcDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	decoder.fun(ptr, iter)
+}
+
+type funcEncoder struct {
+	fun         EncoderFunc
+	isEmptyFunc func(ptr unsafe.Pointer) bool
+}
+
+func (encoder *funcEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	encoder.fun(ptr, stream)
+}
+
+func (encoder *funcEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	if encoder.isEmptyFunc == nil {
+		return false
+	}
+	return encoder.isEmptyFunc(ptr)
+}
+
+// DecoderFunc the function form of TypeDecoder
+type DecoderFunc func(ptr unsafe.Pointer, iter *Iterator)
+
+// EncoderFunc the function form of TypeEncoder
+type EncoderFunc func(ptr unsafe.Pointer, stream *Stream)
+
+// RegisterTypeDecoderFunc register TypeDecoder for a type with function
+func RegisterTypeDecoderFunc(typ string, fun DecoderFunc) {
+	typeDecoders[typ] = &funcDecoder{fun}
+}
+
+// RegisterTypeDecoder register TypeDecoder for a typ
+func RegisterTypeDecoder(typ string, decoder ValDecoder) {
+	typeDecoders[typ] = decoder
+}
+
+// RegisterFieldDecoderFunc register TypeDecoder for a struct field with function
+func RegisterFieldDecoderFunc(typ string, field string, fun DecoderFunc) {
+	RegisterFieldDecoder(typ, field, &funcDecoder{fun})
+}
+
+// RegisterFieldDecoder register TypeDecoder for a struct field
+func RegisterFieldDecoder(typ string, field string, decoder ValDecoder) {
+	fieldDecoders[fmt.Sprintf("%s/%s", typ, field)] = decoder
+}
+
+// RegisterTypeEncoderFunc register TypeEncoder for a type with encode/isEmpty function
+func RegisterTypeEncoderFunc(typ string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) {
+	typeEncoders[typ] = &funcEncoder{fun, isEmptyFunc}
+}
+
+// RegisterTypeEncoder register TypeEncoder for a type
+func RegisterTypeEncoder(typ string, encoder ValEncoder) {
+	typeEncoders[typ] = encoder
+}
+
+// RegisterFieldEncoderFunc register TypeEncoder for a struct field with encode/isEmpty function
+func RegisterFieldEncoderFunc(typ string, field string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) {
+	RegisterFieldEncoder(typ, field, &funcEncoder{fun, isEmptyFunc})
+}
+
+// RegisterFieldEncoder register TypeEncoder for a struct field
+func RegisterFieldEncoder(typ string, field string, encoder ValEncoder) {
+	fieldEncoders[fmt.Sprintf("%s/%s", typ, field)] = encoder
+}
+
+// RegisterExtension register extension
+func RegisterExtension(extension Extension) {
+	extensions = append(extensions, extension)
+}
+
+func getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder {
+	decoder := _getTypeDecoderFromExtension(ctx, typ)
+	if decoder != nil {
+		for _, extension := range extensions {
+			decoder = extension.DecorateDecoder(typ, decoder)
+		}
+		decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder)
+		for _, extension := range ctx.extraExtensions {
+			decoder = extension.DecorateDecoder(typ, decoder)
+		}
+	}
+	return decoder
+}
+func _getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder {
+	for _, extension := range extensions {
+		decoder := extension.CreateDecoder(typ)
+		if decoder != nil {
+			return decoder
+		}
+	}
+	decoder := ctx.decoderExtension.CreateDecoder(typ)
+	if decoder != nil {
+		return decoder
+	}
+	for _, extension := range ctx.extraExtensions {
+		decoder := extension.CreateDecoder(typ)
+		if decoder != nil {
+			return decoder
+		}
+	}
+	typeName := typ.String()
+	decoder = typeDecoders[typeName]
+	if decoder != nil {
+		return decoder
+	}
+	if typ.Kind() == reflect.Ptr {
+		ptrType := typ.(*reflect2.UnsafePtrType)
+		decoder := typeDecoders[ptrType.Elem().String()]
+		if decoder != nil {
+			return &OptionalDecoder{ptrType.Elem(), decoder}
+		}
+	}
+	return nil
+}
+
+func getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder {
+	encoder := _getTypeEncoderFromExtension(ctx, typ)
+	if encoder != nil {
+		for _, extension := range extensions {
+			encoder = extension.DecorateEncoder(typ, encoder)
+		}
+		encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder)
+		for _, extension := range ctx.extraExtensions {
+			encoder = extension.DecorateEncoder(typ, encoder)
+		}
+	}
+	return encoder
+}
+
+func _getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder {
+	for _, extension := range extensions {
+		encoder := extension.CreateEncoder(typ)
+		if encoder != nil {
+			return encoder
+		}
+	}
+	encoder := ctx.encoderExtension.CreateEncoder(typ)
+	if encoder != nil {
+		return encoder
+	}
+	for _, extension := range ctx.extraExtensions {
+		encoder := extension.CreateEncoder(typ)
+		if encoder != nil {
+			return encoder
+		}
+	}
+	typeName := typ.String()
+	encoder = typeEncoders[typeName]
+	if encoder != nil {
+		return encoder
+	}
+	if typ.Kind() == reflect.Ptr {
+		typePtr := typ.(*reflect2.UnsafePtrType)
+		encoder := typeEncoders[typePtr.Elem().String()]
+		if encoder != nil {
+			return &OptionalEncoder{encoder}
+		}
+	}
+	return nil
+}
+
+func describeStruct(ctx *ctx, typ reflect2.Type) *StructDescriptor {
+	structType := typ.(*reflect2.UnsafeStructType)
+	embeddedBindings := []*Binding{}
+	bindings := []*Binding{}
+	for i := 0; i < structType.NumField(); i++ {
+		field := structType.Field(i)
+		tag, hastag := field.Tag().Lookup(ctx.getTagKey())
+		if ctx.onlyTaggedField && !hastag && !field.Anonymous() {
+			continue
+		}
+		if tag == "-" || field.Name() == "_" {
+			continue
+		}
+		tagParts := strings.Split(tag, ",")
+		if field.Anonymous() && (tag == "" || tagParts[0] == "") {
+			if field.Type().Kind() == reflect.Struct {
+				structDescriptor := describeStruct(ctx, field.Type())
+				for _, binding := range structDescriptor.Fields {
+					binding.levels = append([]int{i}, binding.levels...)
+					omitempty := binding.Encoder.(*structFieldEncoder).omitempty
+					binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty}
+					binding.Decoder = &structFieldDecoder{field, binding.Decoder}
+					embeddedBindings = append(embeddedBindings, binding)
+				}
+				continue
+			} else if field.Type().Kind() == reflect.Ptr {
+				ptrType := field.Type().(*reflect2.UnsafePtrType)
+				if ptrType.Elem().Kind() == reflect.Struct {
+					structDescriptor := describeStruct(ctx, ptrType.Elem())
+					for _, binding := range structDescriptor.Fields {
+						binding.levels = append([]int{i}, binding.levels...)
+						omitempty := binding.Encoder.(*structFieldEncoder).omitempty
+						binding.Encoder = &dereferenceEncoder{binding.Encoder}
+						binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty}
+						binding.Decoder = &dereferenceDecoder{ptrType.Elem(), binding.Decoder}
+						binding.Decoder = &structFieldDecoder{field, binding.Decoder}
+						embeddedBindings = append(embeddedBindings, binding)
+					}
+					continue
+				}
+			}
+		}
+		fieldNames := calcFieldNames(field.Name(), tagParts[0], tag)
+		fieldCacheKey := fmt.Sprintf("%s/%s", typ.String(), field.Name())
+		decoder := fieldDecoders[fieldCacheKey]
+		if decoder == nil {
+			decoder = decoderOfType(ctx.append(field.Name()), field.Type())
+		}
+		encoder := fieldEncoders[fieldCacheKey]
+		if encoder == nil {
+			encoder = encoderOfType(ctx.append(field.Name()), field.Type())
+		}
+		binding := &Binding{
+			Field:     field,
+			FromNames: fieldNames,
+			ToNames:   fieldNames,
+			Decoder:   decoder,
+			Encoder:   encoder,
+		}
+		binding.levels = []int{i}
+		bindings = append(bindings, binding)
+	}
+	return createStructDescriptor(ctx, typ, bindings, embeddedBindings)
+}
+func createStructDescriptor(ctx *ctx, typ reflect2.Type, bindings []*Binding, embeddedBindings []*Binding) *StructDescriptor {
+	structDescriptor := &StructDescriptor{
+		Type:   typ,
+		Fields: bindings,
+	}
+	for _, extension := range extensions {
+		extension.UpdateStructDescriptor(structDescriptor)
+	}
+	ctx.encoderExtension.UpdateStructDescriptor(structDescriptor)
+	ctx.decoderExtension.UpdateStructDescriptor(structDescriptor)
+	for _, extension := range ctx.extraExtensions {
+		extension.UpdateStructDescriptor(structDescriptor)
+	}
+	processTags(structDescriptor, ctx.frozenConfig)
+	// merge normal & embedded bindings & sort with original order
+	allBindings := sortableBindings(append(embeddedBindings, structDescriptor.Fields...))
+	sort.Sort(allBindings)
+	structDescriptor.Fields = allBindings
+	return structDescriptor
+}
+
+type sortableBindings []*Binding
+
+func (bindings sortableBindings) Len() int {
+	return len(bindings)
+}
+
+func (bindings sortableBindings) Less(i, j int) bool {
+	left := bindings[i].levels
+	right := bindings[j].levels
+	k := 0
+	for {
+		if left[k] < right[k] {
+			return true
+		} else if left[k] > right[k] {
+			return false
+		}
+		k++
+	}
+}
+
+func (bindings sortableBindings) Swap(i, j int) {
+	bindings[i], bindings[j] = bindings[j], bindings[i]
+}
+
+func processTags(structDescriptor *StructDescriptor, cfg *frozenConfig) {
+	for _, binding := range structDescriptor.Fields {
+		shouldOmitEmpty := false
+		tagParts := strings.Split(binding.Field.Tag().Get(cfg.getTagKey()), ",")
+		for _, tagPart := range tagParts[1:] {
+			if tagPart == "omitempty" {
+				shouldOmitEmpty = true
+			} else if tagPart == "string" {
+				if binding.Field.Type().Kind() == reflect.String {
+					binding.Decoder = &stringModeStringDecoder{binding.Decoder, cfg}
+					binding.Encoder = &stringModeStringEncoder{binding.Encoder, cfg}
+				} else {
+					binding.Decoder = &stringModeNumberDecoder{binding.Decoder}
+					binding.Encoder = &stringModeNumberEncoder{binding.Encoder}
+				}
+			}
+		}
+		binding.Decoder = &structFieldDecoder{binding.Field, binding.Decoder}
+		binding.Encoder = &structFieldEncoder{binding.Field, binding.Encoder, shouldOmitEmpty}
+	}
+}
+
+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])) || originalFieldName[0] == '_'
+	if isNotExported {
+		fieldNames = []string{}
+	}
+	return fieldNames
+}

vendor/github.com/json-iterator/go/reflect_json_number.go

@@ -0,0 +1,112 @@
+package jsoniter
+
+import (
+	"encoding/json"
+	"github.com/modern-go/reflect2"
+	"strconv"
+	"unsafe"
+)
+
+type Number string
+
+// String returns the literal text of the number.
+func (n Number) String() string { return string(n) }
+
+// Float64 returns the number as a float64.
+func (n Number) Float64() (float64, error) {
+	return strconv.ParseFloat(string(n), 64)
+}
+
+// Int64 returns the number as an int64.
+func (n Number) Int64() (int64, error) {
+	return strconv.ParseInt(string(n), 10, 64)
+}
+
+func CastJsonNumber(val interface{}) (string, bool) {
+	switch typedVal := val.(type) {
+	case json.Number:
+		return string(typedVal), true
+	case Number:
+		return string(typedVal), true
+	}
+	return "", false
+}
+
+var jsonNumberType = reflect2.TypeOfPtr((*json.Number)(nil)).Elem()
+var jsoniterNumberType = reflect2.TypeOfPtr((*Number)(nil)).Elem()
+
+func createDecoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValDecoder {
+	if typ.AssignableTo(jsonNumberType) {
+		return &jsonNumberCodec{}
+	}
+	if typ.AssignableTo(jsoniterNumberType) {
+		return &jsoniterNumberCodec{}
+	}
+	return nil
+}
+
+func createEncoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValEncoder {
+	if typ.AssignableTo(jsonNumberType) {
+		return &jsonNumberCodec{}
+	}
+	if typ.AssignableTo(jsoniterNumberType) {
+		return &jsoniterNumberCodec{}
+	}
+	return nil
+}
+
+type jsonNumberCodec struct {
+}
+
+func (codec *jsonNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	switch iter.WhatIsNext() {
+	case StringValue:
+		*((*json.Number)(ptr)) = json.Number(iter.ReadString())
+	case NilValue:
+		iter.skipFourBytes('n', 'u', 'l', 'l')
+		*((*json.Number)(ptr)) = ""
+	default:
+		*((*json.Number)(ptr)) = json.Number([]byte(iter.readNumberAsString()))
+	}
+}
+
+func (codec *jsonNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	number := *((*json.Number)(ptr))
+	if len(number) == 0 {
+		stream.writeByte('0')
+	} else {
+		stream.WriteRaw(string(number))
+	}
+}
+
+func (codec *jsonNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*json.Number)(ptr))) == 0
+}
+
+type jsoniterNumberCodec struct {
+}
+
+func (codec *jsoniterNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	switch iter.WhatIsNext() {
+	case StringValue:
+		*((*Number)(ptr)) = Number(iter.ReadString())
+	case NilValue:
+		iter.skipFourBytes('n', 'u', 'l', 'l')
+		*((*Number)(ptr)) = ""
+	default:
+		*((*Number)(ptr)) = Number([]byte(iter.readNumberAsString()))
+	}
+}
+
+func (codec *jsoniterNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	number := *((*Number)(ptr))
+	if len(number) == 0 {
+		stream.writeByte('0')
+	} else {
+		stream.WriteRaw(string(number))
+	}
+}
+
+func (codec *jsoniterNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*Number)(ptr))) == 0
+}

vendor/github.com/json-iterator/go/reflect_json_raw_message.go

@@ -0,0 +1,60 @@
+package jsoniter
+
+import (
+	"encoding/json"
+	"github.com/modern-go/reflect2"
+	"unsafe"
+)
+
+var jsonRawMessageType = reflect2.TypeOfPtr((*json.RawMessage)(nil)).Elem()
+var jsoniterRawMessageType = reflect2.TypeOfPtr((*RawMessage)(nil)).Elem()
+
+func createEncoderOfJsonRawMessage(ctx *ctx, typ reflect2.Type) ValEncoder {
+	if typ == jsonRawMessageType {
+		return &jsonRawMessageCodec{}
+	}
+	if typ == jsoniterRawMessageType {
+		return &jsoniterRawMessageCodec{}
+	}
+	return nil
+}
+
+func createDecoderOfJsonRawMessage(ctx *ctx, typ reflect2.Type) ValDecoder {
+	if typ == jsonRawMessageType {
+		return &jsonRawMessageCodec{}
+	}
+	if typ == jsoniterRawMessageType {
+		return &jsoniterRawMessageCodec{}
+	}
+	return nil
+}
+
+type jsonRawMessageCodec struct {
+}
+
+func (codec *jsonRawMessageCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	*((*json.RawMessage)(ptr)) = json.RawMessage(iter.SkipAndReturnBytes())
+}
+
+func (codec *jsonRawMessageCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteRaw(string(*((*json.RawMessage)(ptr))))
+}
+
+func (codec *jsonRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*json.RawMessage)(ptr))) == 0
+}
+
+type jsoniterRawMessageCodec struct {
+}
+
+func (codec *jsoniterRawMessageCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	*((*RawMessage)(ptr)) = RawMessage(iter.SkipAndReturnBytes())
+}
+
+func (codec *jsoniterRawMessageCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteRaw(string(*((*RawMessage)(ptr))))
+}
+
+func (codec *jsoniterRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*RawMessage)(ptr))) == 0
+}

vendor/github.com/json-iterator/go/reflect_map.go

@@ -0,0 +1,346 @@
+package jsoniter
+
+import (
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
+	"reflect"
+	"sort"
+	"unsafe"
+)
+
+func decoderOfMap(ctx *ctx, typ reflect2.Type) ValDecoder {
+	mapType := typ.(*reflect2.UnsafeMapType)
+	keyDecoder := decoderOfMapKey(ctx.append("[mapKey]"), mapType.Key())
+	elemDecoder := decoderOfType(ctx.append("[mapElem]"), mapType.Elem())
+	return &mapDecoder{
+		mapType:     mapType,
+		keyType:     mapType.Key(),
+		elemType:    mapType.Elem(),
+		keyDecoder:  keyDecoder,
+		elemDecoder: elemDecoder,
+	}
+}
+
+func encoderOfMap(ctx *ctx, typ reflect2.Type) ValEncoder {
+	mapType := typ.(*reflect2.UnsafeMapType)
+	if ctx.sortMapKeys {
+		return &sortKeysMapEncoder{
+			mapType:     mapType,
+			keyEncoder:  encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()),
+			elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()),
+		}
+	}
+	return &mapEncoder{
+		mapType:     mapType,
+		keyEncoder:  encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()),
+		elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()),
+	}
+}
+
+func decoderOfMapKey(ctx *ctx, typ reflect2.Type) ValDecoder {
+	decoder := ctx.decoderExtension.CreateMapKeyDecoder(typ)
+	if decoder != nil {
+		return decoder
+	}
+	for _, extension := range ctx.extraExtensions {
+		decoder := extension.CreateMapKeyDecoder(typ)
+		if decoder != nil {
+			return decoder
+		}
+	}
+
+	ptrType := reflect2.PtrTo(typ)
+	if ptrType.Implements(unmarshalerType) {
+		return &referenceDecoder{
+			&unmarshalerDecoder{
+				valType: ptrType,
+			},
+		}
+	}
+	if typ.Implements(unmarshalerType) {
+		return &unmarshalerDecoder{
+			valType: typ,
+		}
+	}
+	if ptrType.Implements(textUnmarshalerType) {
+		return &referenceDecoder{
+			&textUnmarshalerDecoder{
+				valType: ptrType,
+			},
+		}
+	}
+	if typ.Implements(textUnmarshalerType) {
+		return &textUnmarshalerDecoder{
+			valType: typ,
+		}
+	}
+
+	switch typ.Kind() {
+	case reflect.String:
+		return decoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String))
+	case reflect.Bool,
+		reflect.Uint8, reflect.Int8,
+		reflect.Uint16, reflect.Int16,
+		reflect.Uint32, reflect.Int32,
+		reflect.Uint64, reflect.Int64,
+		reflect.Uint, reflect.Int,
+		reflect.Float32, reflect.Float64,
+		reflect.Uintptr:
+		typ = reflect2.DefaultTypeOfKind(typ.Kind())
+		return &numericMapKeyDecoder{decoderOfType(ctx, typ)}
+	default:
+		return &lazyErrorDecoder{err: fmt.Errorf("unsupported map key type: %v", typ)}
+	}
+}
+
+func encoderOfMapKey(ctx *ctx, typ reflect2.Type) ValEncoder {
+	encoder := ctx.encoderExtension.CreateMapKeyEncoder(typ)
+	if encoder != nil {
+		return encoder
+	}
+	for _, extension := range ctx.extraExtensions {
+		encoder := extension.CreateMapKeyEncoder(typ)
+		if encoder != nil {
+			return encoder
+		}
+	}
+
+	if typ == textMarshalerType {
+		return &directTextMarshalerEncoder{
+			stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
+		}
+	}
+	if typ.Implements(textMarshalerType) {
+		return &textMarshalerEncoder{
+			valType:       typ,
+			stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
+		}
+	}
+
+	switch typ.Kind() {
+	case reflect.String:
+		return encoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String))
+	case reflect.Bool,
+		reflect.Uint8, reflect.Int8,
+		reflect.Uint16, reflect.Int16,
+		reflect.Uint32, reflect.Int32,
+		reflect.Uint64, reflect.Int64,
+		reflect.Uint, reflect.Int,
+		reflect.Float32, reflect.Float64,
+		reflect.Uintptr:
+		typ = reflect2.DefaultTypeOfKind(typ.Kind())
+		return &numericMapKeyEncoder{encoderOfType(ctx, typ)}
+	default:
+		if typ.Kind() == reflect.Interface {
+			return &dynamicMapKeyEncoder{ctx, typ}
+		}
+		return &lazyErrorEncoder{err: fmt.Errorf("unsupported map key type: %v", typ)}
+	}
+}
+
+type mapDecoder struct {
+	mapType     *reflect2.UnsafeMapType
+	keyType     reflect2.Type
+	elemType    reflect2.Type
+	keyDecoder  ValDecoder
+	elemDecoder ValDecoder
+}
+
+func (decoder *mapDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	mapType := decoder.mapType
+	c := iter.nextToken()
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		*(*unsafe.Pointer)(ptr) = nil
+		mapType.UnsafeSet(ptr, mapType.UnsafeNew())
+		return
+	}
+	if mapType.UnsafeIsNil(ptr) {
+		mapType.UnsafeSet(ptr, mapType.UnsafeMakeMap(0))
+	}
+	if c != '{' {
+		iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c}))
+		return
+	}
+	c = iter.nextToken()
+	if c == '}' {
+		return
+	}
+	iter.unreadByte()
+	key := decoder.keyType.UnsafeNew()
+	decoder.keyDecoder.Decode(key, iter)
+	c = iter.nextToken()
+	if c != ':' {
+		iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
+		return
+	}
+	elem := decoder.elemType.UnsafeNew()
+	decoder.elemDecoder.Decode(elem, iter)
+	decoder.mapType.UnsafeSetIndex(ptr, key, elem)
+	for c = iter.nextToken(); c == ','; c = iter.nextToken() {
+		key := decoder.keyType.UnsafeNew()
+		decoder.keyDecoder.Decode(key, iter)
+		c = iter.nextToken()
+		if c != ':' {
+			iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
+			return
+		}
+		elem := decoder.elemType.UnsafeNew()
+		decoder.elemDecoder.Decode(elem, iter)
+		decoder.mapType.UnsafeSetIndex(ptr, key, elem)
+	}
+	if c != '}' {
+		iter.ReportError("ReadMapCB", `expect }, but found `+string([]byte{c}))
+	}
+}
+
+type numericMapKeyDecoder struct {
+	decoder ValDecoder
+}
+
+func (decoder *numericMapKeyDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	c := iter.nextToken()
+	if c != '"' {
+		iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c}))
+		return
+	}
+	decoder.decoder.Decode(ptr, iter)
+	c = iter.nextToken()
+	if c != '"' {
+		iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c}))
+		return
+	}
+}
+
+type numericMapKeyEncoder struct {
+	encoder ValEncoder
+}
+
+func (encoder *numericMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.writeByte('"')
+	encoder.encoder.Encode(ptr, stream)
+	stream.writeByte('"')
+}
+
+func (encoder *numericMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return false
+}
+
+type dynamicMapKeyEncoder struct {
+	ctx     *ctx
+	valType reflect2.Type
+}
+
+func (encoder *dynamicMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	obj := encoder.valType.UnsafeIndirect(ptr)
+	encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).Encode(reflect2.PtrOf(obj), stream)
+}
+
+func (encoder *dynamicMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	obj := encoder.valType.UnsafeIndirect(ptr)
+	return encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).IsEmpty(reflect2.PtrOf(obj))
+}
+
+type mapEncoder struct {
+	mapType     *reflect2.UnsafeMapType
+	keyEncoder  ValEncoder
+	elemEncoder ValEncoder
+}
+
+func (encoder *mapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if *(*unsafe.Pointer)(ptr) == nil {
+		stream.WriteNil()
+		return
+	}
+	stream.WriteObjectStart()
+	iter := encoder.mapType.UnsafeIterate(ptr)
+	for i := 0; iter.HasNext(); i++ {
+		if i != 0 {
+			stream.WriteMore()
+		}
+		key, elem := iter.UnsafeNext()
+		encoder.keyEncoder.Encode(key, stream)
+		if stream.indention > 0 {
+			stream.writeTwoBytes(byte(':'), byte(' '))
+		} else {
+			stream.writeByte(':')
+		}
+		encoder.elemEncoder.Encode(elem, stream)
+	}
+	stream.WriteObjectEnd()
+}
+
+func (encoder *mapEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	iter := encoder.mapType.UnsafeIterate(ptr)
+	return !iter.HasNext()
+}
+
+type sortKeysMapEncoder struct {
+	mapType     *reflect2.UnsafeMapType
+	keyEncoder  ValEncoder
+	elemEncoder ValEncoder
+}
+
+func (encoder *sortKeysMapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if *(*unsafe.Pointer)(ptr) == nil {
+		stream.WriteNil()
+		return
+	}
+	stream.WriteObjectStart()
+	mapIter := encoder.mapType.UnsafeIterate(ptr)
+	subStream := stream.cfg.BorrowStream(nil)
+	subStream.Attachment = stream.Attachment
+	subIter := stream.cfg.BorrowIterator(nil)
+	keyValues := encodedKeyValues{}
+	for mapIter.HasNext() {
+		key, elem := mapIter.UnsafeNext()
+		subStreamIndex := subStream.Buffered()
+		encoder.keyEncoder.Encode(key, subStream)
+		if subStream.Error != nil && subStream.Error != io.EOF && stream.Error == nil {
+			stream.Error = subStream.Error
+		}
+		encodedKey := subStream.Buffer()[subStreamIndex:]
+		subIter.ResetBytes(encodedKey)
+		decodedKey := subIter.ReadString()
+		if stream.indention > 0 {
+			subStream.writeTwoBytes(byte(':'), byte(' '))
+		} else {
+			subStream.writeByte(':')
+		}
+		encoder.elemEncoder.Encode(elem, subStream)
+		keyValues = append(keyValues, encodedKV{
+			key:      decodedKey,
+			keyValue: subStream.Buffer()[subStreamIndex:],
+		})
+	}
+	sort.Sort(keyValues)
+	for i, keyValue := range keyValues {
+		if i != 0 {
+			stream.WriteMore()
+		}
+		stream.Write(keyValue.keyValue)
+	}
+	if subStream.Error != nil && stream.Error == nil {
+		stream.Error = subStream.Error
+	}
+	stream.WriteObjectEnd()
+	stream.cfg.ReturnStream(subStream)
+	stream.cfg.ReturnIterator(subIter)
+}
+
+func (encoder *sortKeysMapEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	iter := encoder.mapType.UnsafeIterate(ptr)
+	return !iter.HasNext()
+}
+
+type encodedKeyValues []encodedKV
+
+type encodedKV struct {
+	key      string
+	keyValue []byte
+}
+
+func (sv encodedKeyValues) Len() int           { return len(sv) }
+func (sv encodedKeyValues) Swap(i, j int)      { sv[i], sv[j] = sv[j], sv[i] }
+func (sv encodedKeyValues) Less(i, j int) bool { return sv[i].key < sv[j].key }

vendor/github.com/json-iterator/go/reflect_marshaler.go

@@ -0,0 +1,225 @@
+package jsoniter
+
+import (
+	"encoding"
+	"encoding/json"
+	"unsafe"
+
+	"github.com/modern-go/reflect2"
+)
+
+var marshalerType = reflect2.TypeOfPtr((*json.Marshaler)(nil)).Elem()
+var unmarshalerType = reflect2.TypeOfPtr((*json.Unmarshaler)(nil)).Elem()
+var textMarshalerType = reflect2.TypeOfPtr((*encoding.TextMarshaler)(nil)).Elem()
+var textUnmarshalerType = reflect2.TypeOfPtr((*encoding.TextUnmarshaler)(nil)).Elem()
+
+func createDecoderOfMarshaler(ctx *ctx, typ reflect2.Type) ValDecoder {
+	ptrType := reflect2.PtrTo(typ)
+	if ptrType.Implements(unmarshalerType) {
+		return &referenceDecoder{
+			&unmarshalerDecoder{ptrType},
+		}
+	}
+	if ptrType.Implements(textUnmarshalerType) {
+		return &referenceDecoder{
+			&textUnmarshalerDecoder{ptrType},
+		}
+	}
+	return nil
+}
+
+func createEncoderOfMarshaler(ctx *ctx, typ reflect2.Type) ValEncoder {
+	if typ == marshalerType {
+		checkIsEmpty := createCheckIsEmpty(ctx, typ)
+		var encoder ValEncoder = &directMarshalerEncoder{
+			checkIsEmpty: checkIsEmpty,
+		}
+		return encoder
+	}
+	if typ.Implements(marshalerType) {
+		checkIsEmpty := createCheckIsEmpty(ctx, typ)
+		var encoder ValEncoder = &marshalerEncoder{
+			valType:      typ,
+			checkIsEmpty: checkIsEmpty,
+		}
+		return encoder
+	}
+	ptrType := reflect2.PtrTo(typ)
+	if ctx.prefix != "" && ptrType.Implements(marshalerType) {
+		checkIsEmpty := createCheckIsEmpty(ctx, ptrType)
+		var encoder ValEncoder = &marshalerEncoder{
+			valType:      ptrType,
+			checkIsEmpty: checkIsEmpty,
+		}
+		return &referenceEncoder{encoder}
+	}
+	if typ == textMarshalerType {
+		checkIsEmpty := createCheckIsEmpty(ctx, typ)
+		var encoder ValEncoder = &directTextMarshalerEncoder{
+			checkIsEmpty:  checkIsEmpty,
+			stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
+		}
+		return encoder
+	}
+	if typ.Implements(textMarshalerType) {
+		checkIsEmpty := createCheckIsEmpty(ctx, typ)
+		var encoder ValEncoder = &textMarshalerEncoder{
+			valType:       typ,
+			stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
+			checkIsEmpty:  checkIsEmpty,
+		}
+		return encoder
+	}
+	// if prefix is empty, the type is the root type
+	if ctx.prefix != "" && ptrType.Implements(textMarshalerType) {
+		checkIsEmpty := createCheckIsEmpty(ctx, ptrType)
+		var encoder ValEncoder = &textMarshalerEncoder{
+			valType:       ptrType,
+			stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
+			checkIsEmpty:  checkIsEmpty,
+		}
+		return &referenceEncoder{encoder}
+	}
+	return nil
+}
+
+type marshalerEncoder struct {
+	checkIsEmpty checkIsEmpty
+	valType      reflect2.Type
+}
+
+func (encoder *marshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	obj := encoder.valType.UnsafeIndirect(ptr)
+	if encoder.valType.IsNullable() && reflect2.IsNil(obj) {
+		stream.WriteNil()
+		return
+	}
+	marshaler := obj.(json.Marshaler)
+	bytes, err := marshaler.MarshalJSON()
+	if err != nil {
+		stream.Error = err
+	} else {
+		// html escape was already done by jsoniter
+		// but the extra '\n' should be trimed
+		l := len(bytes)
+		if l > 0 && bytes[l-1] == '\n' {
+			bytes = bytes[:l-1]
+		}
+		stream.Write(bytes)
+	}
+}
+
+func (encoder *marshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.checkIsEmpty.IsEmpty(ptr)
+}
+
+type directMarshalerEncoder struct {
+	checkIsEmpty checkIsEmpty
+}
+
+func (encoder *directMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	marshaler := *(*json.Marshaler)(ptr)
+	if marshaler == nil {
+		stream.WriteNil()
+		return
+	}
+	bytes, err := marshaler.MarshalJSON()
+	if err != nil {
+		stream.Error = err
+	} else {
+		stream.Write(bytes)
+	}
+}
+
+func (encoder *directMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.checkIsEmpty.IsEmpty(ptr)
+}
+
+type textMarshalerEncoder struct {
+	valType       reflect2.Type
+	stringEncoder ValEncoder
+	checkIsEmpty  checkIsEmpty
+}
+
+func (encoder *textMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	obj := encoder.valType.UnsafeIndirect(ptr)
+	if encoder.valType.IsNullable() && reflect2.IsNil(obj) {
+		stream.WriteNil()
+		return
+	}
+	marshaler := (obj).(encoding.TextMarshaler)
+	bytes, err := marshaler.MarshalText()
+	if err != nil {
+		stream.Error = err
+	} else {
+		str := string(bytes)
+		encoder.stringEncoder.Encode(unsafe.Pointer(&str), stream)
+	}
+}
+
+func (encoder *textMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.checkIsEmpty.IsEmpty(ptr)
+}
+
+type directTextMarshalerEncoder struct {
+	stringEncoder ValEncoder
+	checkIsEmpty  checkIsEmpty
+}
+
+func (encoder *directTextMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	marshaler := *(*encoding.TextMarshaler)(ptr)
+	if marshaler == nil {
+		stream.WriteNil()
+		return
+	}
+	bytes, err := marshaler.MarshalText()
+	if err != nil {
+		stream.Error = err
+	} else {
+		str := string(bytes)
+		encoder.stringEncoder.Encode(unsafe.Pointer(&str), stream)
+	}
+}
+
+func (encoder *directTextMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.checkIsEmpty.IsEmpty(ptr)
+}
+
+type unmarshalerDecoder struct {
+	valType reflect2.Type
+}
+
+func (decoder *unmarshalerDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	valType := decoder.valType
+	obj := valType.UnsafeIndirect(ptr)
+	unmarshaler := obj.(json.Unmarshaler)
+	iter.nextToken()
+	iter.unreadByte() // skip spaces
+	bytes := iter.SkipAndReturnBytes()
+	err := unmarshaler.UnmarshalJSON(bytes)
+	if err != nil {
+		iter.ReportError("unmarshalerDecoder", err.Error())
+	}
+}
+
+type textUnmarshalerDecoder struct {
+	valType reflect2.Type
+}
+
+func (decoder *textUnmarshalerDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	valType := decoder.valType
+	obj := valType.UnsafeIndirect(ptr)
+	if reflect2.IsNil(obj) {
+		ptrType := valType.(*reflect2.UnsafePtrType)
+		elemType := ptrType.Elem()
+		elem := elemType.UnsafeNew()
+		ptrType.UnsafeSet(ptr, unsafe.Pointer(&elem))
+		obj = valType.UnsafeIndirect(ptr)
+	}
+	unmarshaler := (obj).(encoding.TextUnmarshaler)
+	str := iter.ReadString()
+	err := unmarshaler.UnmarshalText([]byte(str))
+	if err != nil {
+		iter.ReportError("textUnmarshalerDecoder", err.Error())
+	}
+}

vendor/github.com/json-iterator/go/reflect_native.go

@@ -0,0 +1,453 @@
+package jsoniter
+
+import (
+	"encoding/base64"
+	"reflect"
+	"strconv"
+	"unsafe"
+
+	"github.com/modern-go/reflect2"
+)
+
+const ptrSize = 32 << uintptr(^uintptr(0)>>63)
+
+func createEncoderOfNative(ctx *ctx, typ reflect2.Type) ValEncoder {
+	if typ.Kind() == reflect.Slice && typ.(reflect2.SliceType).Elem().Kind() == reflect.Uint8 {
+		sliceDecoder := decoderOfSlice(ctx, typ)
+		return &base64Codec{sliceDecoder: sliceDecoder}
+	}
+	typeName := typ.String()
+	kind := typ.Kind()
+	switch kind {
+	case reflect.String:
+		if typeName != "string" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem())
+		}
+		return &stringCodec{}
+	case reflect.Int:
+		if typeName != "int" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem())
+		}
+		if strconv.IntSize == 32 {
+			return &int32Codec{}
+		}
+		return &int64Codec{}
+	case reflect.Int8:
+		if typeName != "int8" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem())
+		}
+		return &int8Codec{}
+	case reflect.Int16:
+		if typeName != "int16" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem())
+		}
+		return &int16Codec{}
+	case reflect.Int32:
+		if typeName != "int32" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem())
+		}
+		return &int32Codec{}
+	case reflect.Int64:
+		if typeName != "int64" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem())
+		}
+		return &int64Codec{}
+	case reflect.Uint:
+		if typeName != "uint" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem())
+		}
+		if strconv.IntSize == 32 {
+			return &uint32Codec{}
+		}
+		return &uint64Codec{}
+	case reflect.Uint8:
+		if typeName != "uint8" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem())
+		}
+		return &uint8Codec{}
+	case reflect.Uint16:
+		if typeName != "uint16" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem())
+		}
+		return &uint16Codec{}
+	case reflect.Uint32:
+		if typeName != "uint32" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem())
+		}
+		return &uint32Codec{}
+	case reflect.Uintptr:
+		if typeName != "uintptr" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem())
+		}
+		if ptrSize == 32 {
+			return &uint32Codec{}
+		}
+		return &uint64Codec{}
+	case reflect.Uint64:
+		if typeName != "uint64" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem())
+		}
+		return &uint64Codec{}
+	case reflect.Float32:
+		if typeName != "float32" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem())
+		}
+		return &float32Codec{}
+	case reflect.Float64:
+		if typeName != "float64" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem())
+		}
+		return &float64Codec{}
+	case reflect.Bool:
+		if typeName != "bool" {
+			return encoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem())
+		}
+		return &boolCodec{}
+	}
+	return nil
+}
+
+func createDecoderOfNative(ctx *ctx, typ reflect2.Type) ValDecoder {
+	if typ.Kind() == reflect.Slice && typ.(reflect2.SliceType).Elem().Kind() == reflect.Uint8 {
+		sliceDecoder := decoderOfSlice(ctx, typ)
+		return &base64Codec{sliceDecoder: sliceDecoder}
+	}
+	typeName := typ.String()
+	switch typ.Kind() {
+	case reflect.String:
+		if typeName != "string" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem())
+		}
+		return &stringCodec{}
+	case reflect.Int:
+		if typeName != "int" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem())
+		}
+		if strconv.IntSize == 32 {
+			return &int32Codec{}
+		}
+		return &int64Codec{}
+	case reflect.Int8:
+		if typeName != "int8" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem())
+		}
+		return &int8Codec{}
+	case reflect.Int16:
+		if typeName != "int16" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem())
+		}
+		return &int16Codec{}
+	case reflect.Int32:
+		if typeName != "int32" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem())
+		}
+		return &int32Codec{}
+	case reflect.Int64:
+		if typeName != "int64" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem())
+		}
+		return &int64Codec{}
+	case reflect.Uint:
+		if typeName != "uint" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem())
+		}
+		if strconv.IntSize == 32 {
+			return &uint32Codec{}
+		}
+		return &uint64Codec{}
+	case reflect.Uint8:
+		if typeName != "uint8" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem())
+		}
+		return &uint8Codec{}
+	case reflect.Uint16:
+		if typeName != "uint16" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem())
+		}
+		return &uint16Codec{}
+	case reflect.Uint32:
+		if typeName != "uint32" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem())
+		}
+		return &uint32Codec{}
+	case reflect.Uintptr:
+		if typeName != "uintptr" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem())
+		}
+		if ptrSize == 32 {
+			return &uint32Codec{}
+		}
+		return &uint64Codec{}
+	case reflect.Uint64:
+		if typeName != "uint64" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem())
+		}
+		return &uint64Codec{}
+	case reflect.Float32:
+		if typeName != "float32" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem())
+		}
+		return &float32Codec{}
+	case reflect.Float64:
+		if typeName != "float64" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem())
+		}
+		return &float64Codec{}
+	case reflect.Bool:
+		if typeName != "bool" {
+			return decoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem())
+		}
+		return &boolCodec{}
+	}
+	return nil
+}
+
+type stringCodec struct {
+}
+
+func (codec *stringCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	*((*string)(ptr)) = iter.ReadString()
+}
+
+func (codec *stringCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	str := *((*string)(ptr))
+	stream.WriteString(str)
+}
+
+func (codec *stringCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*string)(ptr)) == ""
+}
+
+type int8Codec struct {
+}
+
+func (codec *int8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*int8)(ptr)) = iter.ReadInt8()
+	}
+}
+
+func (codec *int8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteInt8(*((*int8)(ptr)))
+}
+
+func (codec *int8Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*int8)(ptr)) == 0
+}
+
+type int16Codec struct {
+}
+
+func (codec *int16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*int16)(ptr)) = iter.ReadInt16()
+	}
+}
+
+func (codec *int16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteInt16(*((*int16)(ptr)))
+}
+
+func (codec *int16Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*int16)(ptr)) == 0
+}
+
+type int32Codec struct {
+}
+
+func (codec *int32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*int32)(ptr)) = iter.ReadInt32()
+	}
+}
+
+func (codec *int32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteInt32(*((*int32)(ptr)))
+}
+
+func (codec *int32Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*int32)(ptr)) == 0
+}
+
+type int64Codec struct {
+}
+
+func (codec *int64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*int64)(ptr)) = iter.ReadInt64()
+	}
+}
+
+func (codec *int64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteInt64(*((*int64)(ptr)))
+}
+
+func (codec *int64Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*int64)(ptr)) == 0
+}
+
+type uint8Codec struct {
+}
+
+func (codec *uint8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*uint8)(ptr)) = iter.ReadUint8()
+	}
+}
+
+func (codec *uint8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteUint8(*((*uint8)(ptr)))
+}
+
+func (codec *uint8Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*uint8)(ptr)) == 0
+}
+
+type uint16Codec struct {
+}
+
+func (codec *uint16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*uint16)(ptr)) = iter.ReadUint16()
+	}
+}
+
+func (codec *uint16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteUint16(*((*uint16)(ptr)))
+}
+
+func (codec *uint16Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*uint16)(ptr)) == 0
+}
+
+type uint32Codec struct {
+}
+
+func (codec *uint32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*uint32)(ptr)) = iter.ReadUint32()
+	}
+}
+
+func (codec *uint32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteUint32(*((*uint32)(ptr)))
+}
+
+func (codec *uint32Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*uint32)(ptr)) == 0
+}
+
+type uint64Codec struct {
+}
+
+func (codec *uint64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*uint64)(ptr)) = iter.ReadUint64()
+	}
+}
+
+func (codec *uint64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteUint64(*((*uint64)(ptr)))
+}
+
+func (codec *uint64Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*uint64)(ptr)) == 0
+}
+
+type float32Codec struct {
+}
+
+func (codec *float32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*float32)(ptr)) = iter.ReadFloat32()
+	}
+}
+
+func (codec *float32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteFloat32(*((*float32)(ptr)))
+}
+
+func (codec *float32Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*float32)(ptr)) == 0
+}
+
+type float64Codec struct {
+}
+
+func (codec *float64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*float64)(ptr)) = iter.ReadFloat64()
+	}
+}
+
+func (codec *float64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteFloat64(*((*float64)(ptr)))
+}
+
+func (codec *float64Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*float64)(ptr)) == 0
+}
+
+type boolCodec struct {
+}
+
+func (codec *boolCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if !iter.ReadNil() {
+		*((*bool)(ptr)) = iter.ReadBool()
+	}
+}
+
+func (codec *boolCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteBool(*((*bool)(ptr)))
+}
+
+func (codec *boolCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	return !(*((*bool)(ptr)))
+}
+
+type base64Codec struct {
+	sliceType    *reflect2.UnsafeSliceType
+	sliceDecoder ValDecoder
+}
+
+func (codec *base64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if iter.ReadNil() {
+		codec.sliceType.UnsafeSetNil(ptr)
+		return
+	}
+	switch iter.WhatIsNext() {
+	case StringValue:
+		src := iter.ReadString()
+		dst, err := base64.StdEncoding.DecodeString(src)
+		if err != nil {
+			iter.ReportError("decode base64", err.Error())
+		} else {
+			codec.sliceType.UnsafeSet(ptr, unsafe.Pointer(&dst))
+		}
+	case ArrayValue:
+		codec.sliceDecoder.Decode(ptr, iter)
+	default:
+		iter.ReportError("base64Codec", "invalid input")
+	}
+}
+
+func (codec *base64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if codec.sliceType.UnsafeIsNil(ptr) {
+		stream.WriteNil()
+		return
+	}
+	src := *((*[]byte)(ptr))
+	encoding := base64.StdEncoding
+	stream.writeByte('"')
+	if len(src) != 0 {
+		size := encoding.EncodedLen(len(src))
+		buf := make([]byte, size)
+		encoding.Encode(buf, src)
+		stream.buf = append(stream.buf, buf...)
+	}
+	stream.writeByte('"')
+}
+
+func (codec *base64Codec) IsEmpty(ptr unsafe.Pointer) bool {
+	return len(*((*[]byte)(ptr))) == 0
+}

vendor/github.com/json-iterator/go/reflect_optional.go

@@ -0,0 +1,129 @@
+package jsoniter
+
+import (
+	"github.com/modern-go/reflect2"
+	"unsafe"
+)
+
+func decoderOfOptional(ctx *ctx, typ reflect2.Type) ValDecoder {
+	ptrType := typ.(*reflect2.UnsafePtrType)
+	elemType := ptrType.Elem()
+	decoder := decoderOfType(ctx, elemType)
+	return &OptionalDecoder{elemType, decoder}
+}
+
+func encoderOfOptional(ctx *ctx, typ reflect2.Type) ValEncoder {
+	ptrType := typ.(*reflect2.UnsafePtrType)
+	elemType := ptrType.Elem()
+	elemEncoder := encoderOfType(ctx, elemType)
+	encoder := &OptionalEncoder{elemEncoder}
+	return encoder
+}
+
+type OptionalDecoder struct {
+	ValueType    reflect2.Type
+	ValueDecoder ValDecoder
+}
+
+func (decoder *OptionalDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if iter.ReadNil() {
+		*((*unsafe.Pointer)(ptr)) = nil
+	} else {
+		if *((*unsafe.Pointer)(ptr)) == nil {
+			//pointer to null, we have to allocate memory to hold the value
+			newPtr := decoder.ValueType.UnsafeNew()
+			decoder.ValueDecoder.Decode(newPtr, iter)
+			*((*unsafe.Pointer)(ptr)) = newPtr
+		} else {
+			//reuse existing instance
+			decoder.ValueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter)
+		}
+	}
+}
+
+type dereferenceDecoder struct {
+	// only to deference a pointer
+	valueType    reflect2.Type
+	valueDecoder ValDecoder
+}
+
+func (decoder *dereferenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	if *((*unsafe.Pointer)(ptr)) == nil {
+		//pointer to null, we have to allocate memory to hold the value
+		newPtr := decoder.valueType.UnsafeNew()
+		decoder.valueDecoder.Decode(newPtr, iter)
+		*((*unsafe.Pointer)(ptr)) = newPtr
+	} else {
+		//reuse existing instance
+		decoder.valueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter)
+	}
+}
+
+type OptionalEncoder struct {
+	ValueEncoder ValEncoder
+}
+
+func (encoder *OptionalEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if *((*unsafe.Pointer)(ptr)) == nil {
+		stream.WriteNil()
+	} else {
+		encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream)
+	}
+}
+
+func (encoder *OptionalEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return *((*unsafe.Pointer)(ptr)) == nil
+}
+
+type dereferenceEncoder struct {
+	ValueEncoder ValEncoder
+}
+
+func (encoder *dereferenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if *((*unsafe.Pointer)(ptr)) == nil {
+		stream.WriteNil()
+	} else {
+		encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream)
+	}
+}
+
+func (encoder *dereferenceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	dePtr := *((*unsafe.Pointer)(ptr))
+	if dePtr == nil {
+		return true
+	}
+	return encoder.ValueEncoder.IsEmpty(dePtr)
+}
+
+func (encoder *dereferenceEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool {
+	deReferenced := *((*unsafe.Pointer)(ptr))
+	if deReferenced == nil {
+		return true
+	}
+	isEmbeddedPtrNil, converted := encoder.ValueEncoder.(IsEmbeddedPtrNil)
+	if !converted {
+		return false
+	}
+	fieldPtr := unsafe.Pointer(deReferenced)
+	return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr)
+}
+
+type referenceEncoder struct {
+	encoder ValEncoder
+}
+
+func (encoder *referenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	encoder.encoder.Encode(unsafe.Pointer(&ptr), stream)
+}
+
+func (encoder *referenceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr))
+}
+
+type referenceDecoder struct {
+	decoder ValDecoder
+}
+
+func (decoder *referenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	decoder.decoder.Decode(unsafe.Pointer(&ptr), iter)
+}

vendor/github.com/json-iterator/go/reflect_slice.go

@@ -0,0 +1,99 @@
+package jsoniter
+
+import (
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
+	"unsafe"
+)
+
+func decoderOfSlice(ctx *ctx, typ reflect2.Type) ValDecoder {
+	sliceType := typ.(*reflect2.UnsafeSliceType)
+	decoder := decoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
+	return &sliceDecoder{sliceType, decoder}
+}
+
+func encoderOfSlice(ctx *ctx, typ reflect2.Type) ValEncoder {
+	sliceType := typ.(*reflect2.UnsafeSliceType)
+	encoder := encoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
+	return &sliceEncoder{sliceType, encoder}
+}
+
+type sliceEncoder struct {
+	sliceType   *reflect2.UnsafeSliceType
+	elemEncoder ValEncoder
+}
+
+func (encoder *sliceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	if encoder.sliceType.UnsafeIsNil(ptr) {
+		stream.WriteNil()
+		return
+	}
+	length := encoder.sliceType.UnsafeLengthOf(ptr)
+	if length == 0 {
+		stream.WriteEmptyArray()
+		return
+	}
+	stream.WriteArrayStart()
+	encoder.elemEncoder.Encode(encoder.sliceType.UnsafeGetIndex(ptr, 0), stream)
+	for i := 1; i < length; i++ {
+		stream.WriteMore()
+		elemPtr := encoder.sliceType.UnsafeGetIndex(ptr, i)
+		encoder.elemEncoder.Encode(elemPtr, stream)
+	}
+	stream.WriteArrayEnd()
+	if stream.Error != nil && stream.Error != io.EOF {
+		stream.Error = fmt.Errorf("%v: %s", encoder.sliceType, stream.Error.Error())
+	}
+}
+
+func (encoder *sliceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.sliceType.UnsafeLengthOf(ptr) == 0
+}
+
+type sliceDecoder struct {
+	sliceType   *reflect2.UnsafeSliceType
+	elemDecoder ValDecoder
+}
+
+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) {
+	c := iter.nextToken()
+	sliceType := decoder.sliceType
+	if c == 'n' {
+		iter.skipThreeBytes('u', 'l', 'l')
+		sliceType.UnsafeSetNil(ptr)
+		return
+	}
+	if c != '[' {
+		iter.ReportError("decode slice", "expect [ or n, but found "+string([]byte{c}))
+		return
+	}
+	c = iter.nextToken()
+	if c == ']' {
+		sliceType.UnsafeSet(ptr, sliceType.UnsafeMakeSlice(0, 0))
+		return
+	}
+	iter.unreadByte()
+	sliceType.UnsafeGrow(ptr, 1)
+	elemPtr := sliceType.UnsafeGetIndex(ptr, 0)
+	decoder.elemDecoder.Decode(elemPtr, iter)
+	length := 1
+	for c = iter.nextToken(); c == ','; c = iter.nextToken() {
+		idx := length
+		length += 1
+		sliceType.UnsafeGrow(ptr, length)
+		elemPtr = sliceType.UnsafeGetIndex(ptr, idx)
+		decoder.elemDecoder.Decode(elemPtr, iter)
+	}
+	if c != ']' {
+		iter.ReportError("decode slice", "expect ], but found "+string([]byte{c}))
+		return
+	}
+}

vendor/github.com/json-iterator/go/reflect_struct_encoder.go

@@ -0,0 +1,211 @@
+package jsoniter
+
+import (
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
+	"reflect"
+	"unsafe"
+)
+
+func encoderOfStruct(ctx *ctx, typ reflect2.Type) ValEncoder {
+	type bindingTo struct {
+		binding *Binding
+		toName  string
+		ignored bool
+	}
+	orderedBindings := []*bindingTo{}
+	structDescriptor := describeStruct(ctx, typ)
+	for _, binding := range structDescriptor.Fields {
+		for _, toName := range binding.ToNames {
+			new := &bindingTo{
+				binding: binding,
+				toName:  toName,
+			}
+			for _, old := range orderedBindings {
+				if old.toName != toName {
+					continue
+				}
+				old.ignored, new.ignored = resolveConflictBinding(ctx.frozenConfig, old.binding, new.binding)
+			}
+			orderedBindings = append(orderedBindings, new)
+		}
+	}
+	if len(orderedBindings) == 0 {
+		return &emptyStructEncoder{}
+	}
+	finalOrderedFields := []structFieldTo{}
+	for _, bindingTo := range orderedBindings {
+		if !bindingTo.ignored {
+			finalOrderedFields = append(finalOrderedFields, structFieldTo{
+				encoder: bindingTo.binding.Encoder.(*structFieldEncoder),
+				toName:  bindingTo.toName,
+			})
+		}
+	}
+	return &structEncoder{typ, finalOrderedFields}
+}
+
+func createCheckIsEmpty(ctx *ctx, typ reflect2.Type) checkIsEmpty {
+	encoder := createEncoderOfNative(ctx, typ)
+	if encoder != nil {
+		return encoder
+	}
+	kind := typ.Kind()
+	switch kind {
+	case reflect.Interface:
+		return &dynamicEncoder{typ}
+	case reflect.Struct:
+		return &structEncoder{typ: typ}
+	case reflect.Array:
+		return &arrayEncoder{}
+	case reflect.Slice:
+		return &sliceEncoder{}
+	case reflect.Map:
+		return encoderOfMap(ctx, typ)
+	case reflect.Ptr:
+		return &OptionalEncoder{}
+	default:
+		return &lazyErrorEncoder{err: fmt.Errorf("unsupported type: %v", typ)}
+	}
+}
+
+func resolveConflictBinding(cfg *frozenConfig, old, new *Binding) (ignoreOld, ignoreNew bool) {
+	newTagged := new.Field.Tag().Get(cfg.getTagKey()) != ""
+	oldTagged := old.Field.Tag().Get(cfg.getTagKey()) != ""
+	if newTagged {
+		if oldTagged {
+			if len(old.levels) > len(new.levels) {
+				return true, false
+			} else if len(new.levels) > len(old.levels) {
+				return false, true
+			} else {
+				return true, true
+			}
+		} else {
+			return true, false
+		}
+	} else {
+		if oldTagged {
+			return true, false
+		}
+		if len(old.levels) > len(new.levels) {
+			return true, false
+		} else if len(new.levels) > len(old.levels) {
+			return false, true
+		} else {
+			return true, true
+		}
+	}
+}
+
+type structFieldEncoder struct {
+	field        reflect2.StructField
+	fieldEncoder ValEncoder
+	omitempty    bool
+}
+
+func (encoder *structFieldEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	fieldPtr := encoder.field.UnsafeGet(ptr)
+	encoder.fieldEncoder.Encode(fieldPtr, stream)
+	if stream.Error != nil && stream.Error != io.EOF {
+		stream.Error = fmt.Errorf("%s: %s", encoder.field.Name(), stream.Error.Error())
+	}
+}
+
+func (encoder *structFieldEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	fieldPtr := encoder.field.UnsafeGet(ptr)
+	return encoder.fieldEncoder.IsEmpty(fieldPtr)
+}
+
+func (encoder *structFieldEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool {
+	isEmbeddedPtrNil, converted := encoder.fieldEncoder.(IsEmbeddedPtrNil)
+	if !converted {
+		return false
+	}
+	fieldPtr := encoder.field.UnsafeGet(ptr)
+	return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr)
+}
+
+type IsEmbeddedPtrNil interface {
+	IsEmbeddedPtrNil(ptr unsafe.Pointer) bool
+}
+
+type structEncoder struct {
+	typ    reflect2.Type
+	fields []structFieldTo
+}
+
+type structFieldTo struct {
+	encoder *structFieldEncoder
+	toName  string
+}
+
+func (encoder *structEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteObjectStart()
+	isNotFirst := false
+	for _, field := range encoder.fields {
+		if field.encoder.omitempty && field.encoder.IsEmpty(ptr) {
+			continue
+		}
+		if field.encoder.IsEmbeddedPtrNil(ptr) {
+			continue
+		}
+		if isNotFirst {
+			stream.WriteMore()
+		}
+		stream.WriteObjectField(field.toName)
+		field.encoder.Encode(ptr, stream)
+		isNotFirst = true
+	}
+	stream.WriteObjectEnd()
+	if stream.Error != nil && stream.Error != io.EOF {
+		stream.Error = fmt.Errorf("%v.%s", encoder.typ, stream.Error.Error())
+	}
+}
+
+func (encoder *structEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return false
+}
+
+type emptyStructEncoder struct {
+}
+
+func (encoder *emptyStructEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.WriteEmptyObject()
+}
+
+func (encoder *emptyStructEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return false
+}
+
+type stringModeNumberEncoder struct {
+	elemEncoder ValEncoder
+}
+
+func (encoder *stringModeNumberEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	stream.writeByte('"')
+	encoder.elemEncoder.Encode(ptr, stream)
+	stream.writeByte('"')
+}
+
+func (encoder *stringModeNumberEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.elemEncoder.IsEmpty(ptr)
+}
+
+type stringModeStringEncoder struct {
+	elemEncoder ValEncoder
+	cfg         *frozenConfig
+}
+
+func (encoder *stringModeStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
+	tempStream := encoder.cfg.BorrowStream(nil)
+	tempStream.Attachment = stream.Attachment
+	defer encoder.cfg.ReturnStream(tempStream)
+	encoder.elemEncoder.Encode(ptr, tempStream)
+	stream.WriteString(string(tempStream.Buffer()))
+}
+
+func (encoder *stringModeStringEncoder) IsEmpty(ptr unsafe.Pointer) bool {
+	return encoder.elemEncoder.IsEmpty(ptr)
+}

vendor/github.com/json-iterator/go/stream.go

@@ -0,0 +1,210 @@
+package jsoniter
+
+import (
+	"io"
+)
+
+// stream is a io.Writer like object, with JSON specific write functions.
+// Error is not returned as return value, but stored as Error member on this stream instance.
+type Stream struct {
+	cfg        *frozenConfig
+	out        io.Writer
+	buf        []byte
+	Error      error
+	indention  int
+	Attachment interface{} // open for customized encoder
+}
+
+// NewStream create new stream instance.
+// cfg can be jsoniter.ConfigDefault.
+// out can be nil if write to internal buffer.
+// bufSize is the initial size for the internal buffer in bytes.
+func NewStream(cfg API, out io.Writer, bufSize int) *Stream {
+	return &Stream{
+		cfg:       cfg.(*frozenConfig),
+		out:       out,
+		buf:       make([]byte, 0, bufSize),
+		Error:     nil,
+		indention: 0,
+	}
+}
+
+// Pool returns a pool can provide more stream with same configuration
+func (stream *Stream) Pool() StreamPool {
+	return stream.cfg
+}
+
+// Reset reuse this stream instance by assign a new writer
+func (stream *Stream) Reset(out io.Writer) {
+	stream.out = out
+	stream.buf = stream.buf[:0]
+}
+
+// Available returns how many bytes are unused in the buffer.
+func (stream *Stream) Available() int {
+	return cap(stream.buf) - len(stream.buf)
+}
+
+// Buffered returns the number of bytes that have been written into the current buffer.
+func (stream *Stream) Buffered() int {
+	return len(stream.buf)
+}
+
+// Buffer if writer is nil, use this method to take the result
+func (stream *Stream) Buffer() []byte {
+	return stream.buf
+}
+
+// SetBuffer allows to append to the internal buffer directly
+func (stream *Stream) SetBuffer(buf []byte) {
+	stream.buf = buf
+}
+
+// Write writes the contents of p into the buffer.
+// It returns the number of bytes written.
+// If nn < len(p), it also returns an error explaining
+// why the write is short.
+func (stream *Stream) Write(p []byte) (nn int, err error) {
+	stream.buf = append(stream.buf, p...)
+	if stream.out != nil {
+		nn, err = stream.out.Write(stream.buf)
+		stream.buf = stream.buf[nn:]
+		return
+	}
+	return len(p), nil
+}
+
+// WriteByte writes a single byte.
+func (stream *Stream) writeByte(c byte) {
+	stream.buf = append(stream.buf, c)
+}
+
+func (stream *Stream) writeTwoBytes(c1 byte, c2 byte) {
+	stream.buf = append(stream.buf, c1, c2)
+}
+
+func (stream *Stream) writeThreeBytes(c1 byte, c2 byte, c3 byte) {
+	stream.buf = append(stream.buf, c1, c2, c3)
+}
+
+func (stream *Stream) writeFourBytes(c1 byte, c2 byte, c3 byte, c4 byte) {
+	stream.buf = append(stream.buf, c1, c2, c3, c4)
+}
+
+func (stream *Stream) writeFiveBytes(c1 byte, c2 byte, c3 byte, c4 byte, c5 byte) {
+	stream.buf = append(stream.buf, c1, c2, c3, c4, c5)
+}
+
+// Flush writes any buffered data to the underlying io.Writer.
+func (stream *Stream) Flush() error {
+	if stream.out == nil {
+		return nil
+	}
+	if stream.Error != nil {
+		return stream.Error
+	}
+	_, err := stream.out.Write(stream.buf)
+	if err != nil {
+		if stream.Error == nil {
+			stream.Error = err
+		}
+		return err
+	}
+	stream.buf = stream.buf[:0]
+	return nil
+}
+
+// WriteRaw write string out without quotes, just like []byte
+func (stream *Stream) WriteRaw(s string) {
+	stream.buf = append(stream.buf, s...)
+}
+
+// WriteNil write null to stream
+func (stream *Stream) WriteNil() {
+	stream.writeFourBytes('n', 'u', 'l', 'l')
+}
+
+// WriteTrue write true to stream
+func (stream *Stream) WriteTrue() {
+	stream.writeFourBytes('t', 'r', 'u', 'e')
+}
+
+// WriteFalse write false to stream
+func (stream *Stream) WriteFalse() {
+	stream.writeFiveBytes('f', 'a', 'l', 's', 'e')
+}
+
+// WriteBool write true or false into stream
+func (stream *Stream) WriteBool(val bool) {
+	if val {
+		stream.WriteTrue()
+	} else {
+		stream.WriteFalse()
+	}
+}
+
+// WriteObjectStart write { with possible indention
+func (stream *Stream) WriteObjectStart() {
+	stream.indention += stream.cfg.indentionStep
+	stream.writeByte('{')
+	stream.writeIndention(0)
+}
+
+// WriteObjectField write "field": with possible indention
+func (stream *Stream) WriteObjectField(field string) {
+	stream.WriteString(field)
+	if stream.indention > 0 {
+		stream.writeTwoBytes(':', ' ')
+	} else {
+		stream.writeByte(':')
+	}
+}
+
+// WriteObjectEnd write } with possible indention
+func (stream *Stream) WriteObjectEnd() {
+	stream.writeIndention(stream.cfg.indentionStep)
+	stream.indention -= stream.cfg.indentionStep
+	stream.writeByte('}')
+}
+
+// WriteEmptyObject write {}
+func (stream *Stream) WriteEmptyObject() {
+	stream.writeByte('{')
+	stream.writeByte('}')
+}
+
+// WriteMore write , with possible indention
+func (stream *Stream) WriteMore() {
+	stream.writeByte(',')
+	stream.writeIndention(0)
+}
+
+// WriteArrayStart write [ with possible indention
+func (stream *Stream) WriteArrayStart() {
+	stream.indention += stream.cfg.indentionStep
+	stream.writeByte('[')
+	stream.writeIndention(0)
+}
+
+// WriteEmptyArray write []
+func (stream *Stream) WriteEmptyArray() {
+	stream.writeTwoBytes('[', ']')
+}
+
+// WriteArrayEnd write ] with possible indention
+func (stream *Stream) WriteArrayEnd() {
+	stream.writeIndention(stream.cfg.indentionStep)
+	stream.indention -= stream.cfg.indentionStep
+	stream.writeByte(']')
+}
+
+func (stream *Stream) writeIndention(delta int) {
+	if stream.indention == 0 {
+		return
+	}
+	stream.writeByte('\n')
+	toWrite := stream.indention - delta
+	for i := 0; i < toWrite; i++ {
+		stream.buf = append(stream.buf, ' ')
+	}
+}

vendor/github.com/json-iterator/go/stream_float.go

@@ -0,0 +1,111 @@
+package jsoniter
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+)
+
+var pow10 []uint64
+
+func init() {
+	pow10 = []uint64{1, 10, 100, 1000, 10000, 100000, 1000000}
+}
+
+// WriteFloat32 write float32 to stream
+func (stream *Stream) WriteFloat32(val float32) {
+	if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
+		stream.Error = fmt.Errorf("unsupported value: %f", val)
+		return
+	}
+	abs := math.Abs(float64(val))
+	fmt := byte('f')
+	// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
+	if abs != 0 {
+		if float32(abs) < 1e-6 || float32(abs) >= 1e21 {
+			fmt = 'e'
+		}
+	}
+	stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 32)
+}
+
+// WriteFloat32Lossy write float32 to stream with ONLY 6 digits precision although much much faster
+func (stream *Stream) WriteFloat32Lossy(val float32) {
+	if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
+		stream.Error = fmt.Errorf("unsupported value: %f", val)
+		return
+	}
+	if val < 0 {
+		stream.writeByte('-')
+		val = -val
+	}
+	if val > 0x4ffffff {
+		stream.WriteFloat32(val)
+		return
+	}
+	precision := 6
+	exp := uint64(1000000) // 6
+	lval := uint64(float64(val)*float64(exp) + 0.5)
+	stream.WriteUint64(lval / exp)
+	fval := lval % exp
+	if fval == 0 {
+		return
+	}
+	stream.writeByte('.')
+	for p := precision - 1; p > 0 && fval < pow10[p]; p-- {
+		stream.writeByte('0')
+	}
+	stream.WriteUint64(fval)
+	for stream.buf[len(stream.buf)-1] == '0' {
+		stream.buf = stream.buf[:len(stream.buf)-1]
+	}
+}
+
+// WriteFloat64 write float64 to stream
+func (stream *Stream) WriteFloat64(val float64) {
+	if math.IsInf(val, 0) || math.IsNaN(val) {
+		stream.Error = fmt.Errorf("unsupported value: %f", val)
+		return
+	}
+	abs := math.Abs(val)
+	fmt := byte('f')
+	// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
+	if abs != 0 {
+		if abs < 1e-6 || abs >= 1e21 {
+			fmt = 'e'
+		}
+	}
+	stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 64)
+}
+
+// WriteFloat64Lossy write float64 to stream with ONLY 6 digits precision although much much faster
+func (stream *Stream) WriteFloat64Lossy(val float64) {
+	if math.IsInf(val, 0) || math.IsNaN(val) {
+		stream.Error = fmt.Errorf("unsupported value: %f", val)
+		return
+	}
+	if val < 0 {
+		stream.writeByte('-')
+		val = -val
+	}
+	if val > 0x4ffffff {
+		stream.WriteFloat64(val)
+		return
+	}
+	precision := 6
+	exp := uint64(1000000) // 6
+	lval := uint64(val*float64(exp) + 0.5)
+	stream.WriteUint64(lval / exp)
+	fval := lval % exp
+	if fval == 0 {
+		return
+	}
+	stream.writeByte('.')
+	for p := precision - 1; p > 0 && fval < pow10[p]; p-- {
+		stream.writeByte('0')
+	}
+	stream.WriteUint64(fval)
+	for stream.buf[len(stream.buf)-1] == '0' {
+		stream.buf = stream.buf[:len(stream.buf)-1]
+	}
+}

vendor/github.com/json-iterator/go/stream_int.go

@@ -0,0 +1,190 @@
+package jsoniter
+
+var digits []uint32
+
+func init() {
+	digits = make([]uint32, 1000)
+	for i := uint32(0); i < 1000; i++ {
+		digits[i] = (((i / 100) + '0') << 16) + ((((i / 10) % 10) + '0') << 8) + i%10 + '0'
+		if i < 10 {
+			digits[i] += 2 << 24
+		} else if i < 100 {
+			digits[i] += 1 << 24
+		}
+	}
+}
+
+func writeFirstBuf(space []byte, v uint32) []byte {
+	start := v >> 24
+	if start == 0 {
+		space = append(space, byte(v>>16), byte(v>>8))
+	} else if start == 1 {
+		space = append(space, byte(v>>8))
+	}
+	space = append(space, byte(v))
+	return space
+}
+
+func writeBuf(buf []byte, v uint32) []byte {
+	return append(buf, byte(v>>16), byte(v>>8), byte(v))
+}
+
+// WriteUint8 write uint8 to stream
+func (stream *Stream) WriteUint8(val uint8) {
+	stream.buf = writeFirstBuf(stream.buf, digits[val])
+}
+
+// WriteInt8 write int8 to stream
+func (stream *Stream) WriteInt8(nval int8) {
+	var val uint8
+	if nval < 0 {
+		val = uint8(-nval)
+		stream.buf = append(stream.buf, '-')
+	} else {
+		val = uint8(nval)
+	}
+	stream.buf = writeFirstBuf(stream.buf, digits[val])
+}
+
+// WriteUint16 write uint16 to stream
+func (stream *Stream) WriteUint16(val uint16) {
+	q1 := val / 1000
+	if q1 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[val])
+		return
+	}
+	r1 := val - q1*1000
+	stream.buf = writeFirstBuf(stream.buf, digits[q1])
+	stream.buf = writeBuf(stream.buf, digits[r1])
+	return
+}
+
+// WriteInt16 write int16 to stream
+func (stream *Stream) WriteInt16(nval int16) {
+	var val uint16
+	if nval < 0 {
+		val = uint16(-nval)
+		stream.buf = append(stream.buf, '-')
+	} else {
+		val = uint16(nval)
+	}
+	stream.WriteUint16(val)
+}
+
+// WriteUint32 write uint32 to stream
+func (stream *Stream) WriteUint32(val uint32) {
+	q1 := val / 1000
+	if q1 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[val])
+		return
+	}
+	r1 := val - q1*1000
+	q2 := q1 / 1000
+	if q2 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q1])
+		stream.buf = writeBuf(stream.buf, digits[r1])
+		return
+	}
+	r2 := q1 - q2*1000
+	q3 := q2 / 1000
+	if q3 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q2])
+	} else {
+		r3 := q2 - q3*1000
+		stream.buf = append(stream.buf, byte(q3+'0'))
+		stream.buf = writeBuf(stream.buf, digits[r3])
+	}
+	stream.buf = writeBuf(stream.buf, digits[r2])
+	stream.buf = writeBuf(stream.buf, digits[r1])
+}
+
+// WriteInt32 write int32 to stream
+func (stream *Stream) WriteInt32(nval int32) {
+	var val uint32
+	if nval < 0 {
+		val = uint32(-nval)
+		stream.buf = append(stream.buf, '-')
+	} else {
+		val = uint32(nval)
+	}
+	stream.WriteUint32(val)
+}
+
+// WriteUint64 write uint64 to stream
+func (stream *Stream) WriteUint64(val uint64) {
+	q1 := val / 1000
+	if q1 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[val])
+		return
+	}
+	r1 := val - q1*1000
+	q2 := q1 / 1000
+	if q2 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q1])
+		stream.buf = writeBuf(stream.buf, digits[r1])
+		return
+	}
+	r2 := q1 - q2*1000
+	q3 := q2 / 1000
+	if q3 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q2])
+		stream.buf = writeBuf(stream.buf, digits[r2])
+		stream.buf = writeBuf(stream.buf, digits[r1])
+		return
+	}
+	r3 := q2 - q3*1000
+	q4 := q3 / 1000
+	if q4 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q3])
+		stream.buf = writeBuf(stream.buf, digits[r3])
+		stream.buf = writeBuf(stream.buf, digits[r2])
+		stream.buf = writeBuf(stream.buf, digits[r1])
+		return
+	}
+	r4 := q3 - q4*1000
+	q5 := q4 / 1000
+	if q5 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q4])
+		stream.buf = writeBuf(stream.buf, digits[r4])
+		stream.buf = writeBuf(stream.buf, digits[r3])
+		stream.buf = writeBuf(stream.buf, digits[r2])
+		stream.buf = writeBuf(stream.buf, digits[r1])
+		return
+	}
+	r5 := q4 - q5*1000
+	q6 := q5 / 1000
+	if q6 == 0 {
+		stream.buf = writeFirstBuf(stream.buf, digits[q5])
+	} else {
+		stream.buf = writeFirstBuf(stream.buf, digits[q6])
+		r6 := q5 - q6*1000
+		stream.buf = writeBuf(stream.buf, digits[r6])
+	}
+	stream.buf = writeBuf(stream.buf, digits[r5])
+	stream.buf = writeBuf(stream.buf, digits[r4])
+	stream.buf = writeBuf(stream.buf, digits[r3])
+	stream.buf = writeBuf(stream.buf, digits[r2])
+	stream.buf = writeBuf(stream.buf, digits[r1])
+}
+
+// WriteInt64 write int64 to stream
+func (stream *Stream) WriteInt64(nval int64) {
+	var val uint64
+	if nval < 0 {
+		val = uint64(-nval)
+		stream.buf = append(stream.buf, '-')
+	} else {
+		val = uint64(nval)
+	}
+	stream.WriteUint64(val)
+}
+
+// WriteInt write int to stream
+func (stream *Stream) WriteInt(val int) {
+	stream.WriteInt64(int64(val))
+}
+
+// WriteUint write uint to stream
+func (stream *Stream) WriteUint(val uint) {
+	stream.WriteUint64(uint64(val))
+}

vendor/github.com/json-iterator/go/stream_str.go

@@ -0,0 +1,372 @@
+package jsoniter
+
+import (
+	"unicode/utf8"
+)
+
+// htmlSafeSet holds the value true if the ASCII character with the given
+// array position can be safely represented inside a JSON string, embedded
+// inside of HTML <script> tags, without any additional escaping.
+//
+// All values are true except for the ASCII control characters (0-31), the
+// double quote ("), the backslash character ("\"), HTML opening and closing
+// tags ("<" and ">"), and the ampersand ("&").
+var htmlSafeSet = [utf8.RuneSelf]bool{
+	' ':      true,
+	'!':      true,
+	'"':      false,
+	'#':      true,
+	'$':      true,
+	'%':      true,
+	'&':      false,
+	'\'':     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,
+	'<':      false,
+	'=':      true,
+	'>':      false,
+	'?':      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,
+}
+
+// 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 hex = "0123456789abcdef"
+
+// WriteStringWithHTMLEscaped write string to stream with html special characters escaped
+func (stream *Stream) WriteStringWithHTMLEscaped(s string) {
+	valLen := len(s)
+	stream.buf = append(stream.buf, '"')
+	// write string, the fast path, without utf8 and escape support
+	i := 0
+	for ; i < valLen; i++ {
+		c := s[i]
+		if c < utf8.RuneSelf && htmlSafeSet[c] {
+			stream.buf = append(stream.buf, c)
+		} else {
+			break
+		}
+	}
+	if i == valLen {
+		stream.buf = append(stream.buf, '"')
+		return
+	}
+	writeStringSlowPathWithHTMLEscaped(stream, i, s, valLen)
+}
+
+func writeStringSlowPathWithHTMLEscaped(stream *Stream, i int, s string, valLen int) {
+	start := i
+	// for the remaining parts, we process them char by char
+	for i < valLen {
+		if b := s[i]; b < utf8.RuneSelf {
+			if htmlSafeSet[b] {
+				i++
+				continue
+			}
+			if start < i {
+				stream.WriteRaw(s[start:i])
+			}
+			switch b {
+			case '\\', '"':
+				stream.writeTwoBytes('\\', b)
+			case '\n':
+				stream.writeTwoBytes('\\', 'n')
+			case '\r':
+				stream.writeTwoBytes('\\', 'r')
+			case '\t':
+				stream.writeTwoBytes('\\', 't')
+			default:
+				// This encodes bytes < 0x20 except for \t, \n and \r.
+				// If escapeHTML is set, it also escapes <, >, and &
+				// because they can lead to security holes when
+				// user-controlled strings are rendered into JSON
+				// and served to some browsers.
+				stream.WriteRaw(`\u00`)
+				stream.writeTwoBytes(hex[b>>4], hex[b&0xF])
+			}
+			i++
+			start = i
+			continue
+		}
+		c, size := utf8.DecodeRuneInString(s[i:])
+		if c == utf8.RuneError && size == 1 {
+			if start < i {
+				stream.WriteRaw(s[start:i])
+			}
+			stream.WriteRaw(`\ufffd`)
+			i++
+			start = i
+			continue
+		}
+		// U+2028 is LINE SEPARATOR.
+		// U+2029 is PARAGRAPH SEPARATOR.
+		// They are both technically valid characters in JSON strings,
+		// but don't work in JSONP, which has to be evaluated as JavaScript,
+		// and can lead to security holes there. It is valid JSON to
+		// escape them, so we do so unconditionally.
+		// See http://timelessrepo.com/json-isnt-a-javascript-subset for discussion.
+		if c == '\u2028' || c == '\u2029' {
+			if start < i {
+				stream.WriteRaw(s[start:i])
+			}
+			stream.WriteRaw(`\u202`)
+			stream.writeByte(hex[c&0xF])
+			i += size
+			start = i
+			continue
+		}
+		i += size
+	}
+	if start < len(s) {
+		stream.WriteRaw(s[start:])
+	}
+	stream.writeByte('"')
+}
+
+// WriteString write string to stream without html escape
+func (stream *Stream) WriteString(s string) {
+	valLen := len(s)
+	stream.buf = append(stream.buf, '"')
+	// write string, the fast path, without utf8 and escape support
+	i := 0
+	for ; i < valLen; i++ {
+		c := s[i]
+		if c > 31 && c != '"' && c != '\\' {
+			stream.buf = append(stream.buf, c)
+		} else {
+			break
+		}
+	}
+	if i == valLen {
+		stream.buf = append(stream.buf, '"')
+		return
+	}
+	writeStringSlowPath(stream, i, s, valLen)
+}
+
+func writeStringSlowPath(stream *Stream, i int, s string, valLen int) {
+	start := i
+	// for the remaining parts, we process them char by char
+	for i < valLen {
+		if b := s[i]; b < utf8.RuneSelf {
+			if safeSet[b] {
+				i++
+				continue
+			}
+			if start < i {
+				stream.WriteRaw(s[start:i])
+			}
+			switch b {
+			case '\\', '"':
+				stream.writeTwoBytes('\\', b)
+			case '\n':
+				stream.writeTwoBytes('\\', 'n')
+			case '\r':
+				stream.writeTwoBytes('\\', 'r')
+			case '\t':
+				stream.writeTwoBytes('\\', 't')
+			default:
+				// This encodes bytes < 0x20 except for \t, \n and \r.
+				// If escapeHTML is set, it also escapes <, >, and &
+				// because they can lead to security holes when
+				// user-controlled strings are rendered into JSON
+				// and served to some browsers.
+				stream.WriteRaw(`\u00`)
+				stream.writeTwoBytes(hex[b>>4], hex[b&0xF])
+			}
+			i++
+			start = i
+			continue
+		}
+		i++
+		continue
+	}
+	if start < len(s) {
+		stream.WriteRaw(s[start:])
+	}
+	stream.writeByte('"')
+}

vendor/github.com/modern-go/concurrent/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      transformation or translation of a Source form, including but
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+      of this License, Derivative Works shall not include works that remain
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+      "Contribution" shall mean any work of authorship, including
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+      to that Work or Derivative Works thereof, that is intentionally
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+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
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+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
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+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+      Work (including but not limited to damages for loss of goodwill,
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
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+   Copyright [yyyy] [name of copyright owner]
+
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+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/modern-go/concurrent/README.md

@@ -0,0 +1,49 @@
+# concurrent
+
+[![Sourcegraph](https://sourcegraph.com/github.com/modern-go/concurrent/-/badge.svg)](https://sourcegraph.com/github.com/modern-go/concurrent?badge)
+[![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/modern-go/concurrent)
+[![Build Status](https://travis-ci.org/modern-go/concurrent.svg?branch=master)](https://travis-ci.org/modern-go/concurrent)
+[![codecov](https://codecov.io/gh/modern-go/concurrent/branch/master/graph/badge.svg)](https://codecov.io/gh/modern-go/concurrent)
+[![rcard](https://goreportcard.com/badge/github.com/modern-go/concurrent)](https://goreportcard.com/report/github.com/modern-go/concurrent)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://raw.githubusercontent.com/modern-go/concurrent/master/LICENSE)
+
+* concurrent.Map: backport sync.Map for go below 1.9
+* concurrent.Executor: goroutine with explicit ownership and cancellable
+
+# concurrent.Map
+
+because sync.Map is only available in go 1.9, we can use concurrent.Map to make code portable
+
+```go
+m := concurrent.NewMap()
+m.Store("hello", "world")
+elem, found := m.Load("hello")
+// elem will be "world"
+// found will be true
+```
+
+# concurrent.Executor
+
+```go
+executor := concurrent.NewUnboundedExecutor()
+executor.Go(func(ctx context.Context) {
+    everyMillisecond := time.NewTicker(time.Millisecond)
+    for {
+        select {
+        case <-ctx.Done():
+            fmt.Println("goroutine exited")
+            return
+        case <-everyMillisecond.C:
+            // do something
+        }
+    }
+})
+time.Sleep(time.Second)
+executor.StopAndWaitForever()
+fmt.Println("executor stopped")
+```
+
+attach goroutine to executor instance, so that we can
+
+* cancel it by stop the executor with Stop/StopAndWait/StopAndWaitForever
+* handle panic by callback: the default behavior will no longer crash your application

vendor/github.com/modern-go/concurrent/executor.go

@@ -0,0 +1,14 @@
+package concurrent
+
+import "context"
+
+// Executor replace go keyword to start a new goroutine
+// the goroutine should cancel itself if the context passed in has been cancelled
+// the goroutine started by the executor, is owned by the executor
+// we can cancel all executors owned by the executor just by stop the executor itself
+// however Executor interface does not Stop method, the one starting and owning executor
+// should use the concrete type of executor, instead of this interface.
+type Executor interface {
+	// Go starts a new goroutine controlled by the context
+	Go(handler func(ctx context.Context))
+}

vendor/github.com/modern-go/concurrent/go_above_19.go

@@ -0,0 +1,15 @@
+//+build go1.9
+
+package concurrent
+
+import "sync"
+
+// Map is a wrapper for sync.Map introduced in go1.9
+type Map struct {
+	sync.Map
+}
+
+// NewMap creates a thread safe Map
+func NewMap() *Map {
+	return &Map{}
+}

vendor/github.com/modern-go/concurrent/go_below_19.go

@@ -0,0 +1,33 @@
+//+build !go1.9
+
+package concurrent
+
+import "sync"
+
+// Map implements a thread safe map for go version below 1.9 using mutex
+type Map struct {
+	lock sync.RWMutex
+	data map[interface{}]interface{}
+}
+
+// NewMap creates a thread safe map
+func NewMap() *Map {
+	return &Map{
+		data: make(map[interface{}]interface{}, 32),
+	}
+}
+
+// Load is same as sync.Map Load
+func (m *Map) Load(key interface{}) (elem interface{}, found bool) {
+	m.lock.RLock()
+	elem, found = m.data[key]
+	m.lock.RUnlock()
+	return
+}
+
+// Load is same as sync.Map Store
+func (m *Map) Store(key interface{}, elem interface{}) {
+	m.lock.Lock()
+	m.data[key] = elem
+	m.lock.Unlock()
+}

vendor/github.com/modern-go/concurrent/log.go

@@ -0,0 +1,13 @@
+package concurrent
+
+import (
+	"os"
+	"log"
+	"io/ioutil"
+)
+
+// ErrorLogger is used to print out error, can be set to writer other than stderr
+var ErrorLogger = log.New(os.Stderr, "", 0)
+
+// InfoLogger is used to print informational message, default to off
+var InfoLogger = log.New(ioutil.Discard, "", 0)

vendor/github.com/modern-go/concurrent/unbounded_executor.go

@@ -0,0 +1,119 @@
+package concurrent
+
+import (
+	"context"
+	"fmt"
+	"runtime"
+	"runtime/debug"
+	"sync"
+	"time"
+	"reflect"
+)
+
+// HandlePanic logs goroutine panic by default
+var HandlePanic = func(recovered interface{}, funcName string) {
+	ErrorLogger.Println(fmt.Sprintf("%s panic: %v", funcName, recovered))
+	ErrorLogger.Println(string(debug.Stack()))
+}
+
+// UnboundedExecutor is a executor without limits on counts of alive goroutines
+// it tracks the goroutine started by it, and can cancel them when shutdown
+type UnboundedExecutor struct {
+	ctx                   context.Context
+	cancel                context.CancelFunc
+	activeGoroutinesMutex *sync.Mutex
+	activeGoroutines      map[string]int
+	HandlePanic           func(recovered interface{}, funcName string)
+}
+
+// GlobalUnboundedExecutor has the life cycle of the program itself
+// any goroutine want to be shutdown before main exit can be started from this executor
+// GlobalUnboundedExecutor expects the main function to call stop
+// it does not magically knows the main function exits
+var GlobalUnboundedExecutor = NewUnboundedExecutor()
+
+// NewUnboundedExecutor creates a new UnboundedExecutor,
+// UnboundedExecutor can not be created by &UnboundedExecutor{}
+// HandlePanic can be set with a callback to override global HandlePanic
+func NewUnboundedExecutor() *UnboundedExecutor {
+	ctx, cancel := context.WithCancel(context.TODO())
+	return &UnboundedExecutor{
+		ctx:                   ctx,
+		cancel:                cancel,
+		activeGoroutinesMutex: &sync.Mutex{},
+		activeGoroutines:      map[string]int{},
+	}
+}
+
+// Go starts a new goroutine and tracks its lifecycle.
+// Panic will be recovered and logged automatically, except for StopSignal
+func (executor *UnboundedExecutor) Go(handler func(ctx context.Context)) {
+	pc := reflect.ValueOf(handler).Pointer()
+	f := runtime.FuncForPC(pc)
+	funcName := f.Name()
+	file, line := f.FileLine(pc)
+	executor.activeGoroutinesMutex.Lock()
+	defer executor.activeGoroutinesMutex.Unlock()
+	startFrom := fmt.Sprintf("%s:%d", file, line)
+	executor.activeGoroutines[startFrom] += 1
+	go func() {
+		defer func() {
+			recovered := recover()
+			// if you want to quit a goroutine without trigger HandlePanic
+			// use runtime.Goexit() to quit
+			if recovered != nil {
+				if executor.HandlePanic == nil {
+					HandlePanic(recovered, funcName)
+				} else {
+					executor.HandlePanic(recovered, funcName)
+				}
+			}
+			executor.activeGoroutinesMutex.Lock()
+			executor.activeGoroutines[startFrom] -= 1
+			executor.activeGoroutinesMutex.Unlock()
+		}()
+		handler(executor.ctx)
+	}()
+}
+
+// Stop cancel all goroutines started by this executor without wait
+func (executor *UnboundedExecutor) Stop() {
+	executor.cancel()
+}
+
+// StopAndWaitForever cancel all goroutines started by this executor and
+// wait until all goroutines exited
+func (executor *UnboundedExecutor) StopAndWaitForever() {
+	executor.StopAndWait(context.Background())
+}
+
+// StopAndWait cancel all goroutines started by this executor and wait.
+// Wait can be cancelled by the context passed in.
+func (executor *UnboundedExecutor) StopAndWait(ctx context.Context) {
+	executor.cancel()
+	for {
+		oneHundredMilliseconds := time.NewTimer(time.Millisecond * 100)
+		select {
+		case <-oneHundredMilliseconds.C:
+			if executor.checkNoActiveGoroutines() {
+				return
+			}
+		case <-ctx.Done():
+			return
+		}
+	}
+}
+
+func (executor *UnboundedExecutor) checkNoActiveGoroutines() bool {
+	executor.activeGoroutinesMutex.Lock()
+	defer executor.activeGoroutinesMutex.Unlock()
+	for startFrom, count := range executor.activeGoroutines {
+		if count > 0 {
+			InfoLogger.Println("UnboundedExecutor is still waiting goroutines to quit",
+				"startFrom", startFrom,
+				"count", count)
+			return false
+		}
+	}
+	return true
+}

vendor/github.com/modern-go/reflect2/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
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+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
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+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
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+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
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+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      meet the following conditions:
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+
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+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      negligent acts) or agreed to in writing, shall any Contributor be
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/modern-go/reflect2/README.md

@@ -0,0 +1,71 @@
+# reflect2
+
+[![Sourcegraph](https://sourcegraph.com/github.com/modern-go/reflect2/-/badge.svg)](https://sourcegraph.com/github.com/modern-go/reflect2?badge)
+[![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/modern-go/reflect2)
+[![Build Status](https://travis-ci.org/modern-go/reflect2.svg?branch=master)](https://travis-ci.org/modern-go/reflect2)
+[![codecov](https://codecov.io/gh/modern-go/reflect2/branch/master/graph/badge.svg)](https://codecov.io/gh/modern-go/reflect2)
+[![rcard](https://goreportcard.com/badge/github.com/modern-go/reflect2)](https://goreportcard.com/report/github.com/modern-go/reflect2)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://raw.githubusercontent.com/modern-go/reflect2/master/LICENSE)
+
+reflect api that avoids runtime reflect.Value cost
+
+* reflect get/set interface{}, with type checking
+* reflect get/set unsafe.Pointer, without type checking
+* `reflect2.TypeByName` works like `Class.forName` found in java
+
+[json-iterator](https://github.com/json-iterator/go) use this package to save runtime dispatching cost.
+This package is designed for low level libraries to optimize reflection performance.
+General application should still use reflect standard library.
+
+# reflect2.TypeByName
+
+```go
+// given package is github.com/your/awesome-package
+type MyStruct struct {
+	// ...
+}
+
+// will return the type
+reflect2.TypeByName("awesome-package.MyStruct")
+// however, if the type has not been used
+// it will be eliminated by compiler, so we can not get it in runtime
+```
+
+# reflect2 get/set interface{}
+
+```go
+valType := reflect2.TypeOf(1)
+i := 1
+j := 10
+valType.Set(&i, &j)
+// i will be 10
+```
+
+to get set `type`, always use its pointer `*type`
+
+# reflect2 get/set unsafe.Pointer
+
+```go
+valType := reflect2.TypeOf(1)
+i := 1
+j := 10
+valType.UnsafeSet(unsafe.Pointer(&i), unsafe.Pointer(&j))
+// i will be 10
+```
+
+to get set `type`, always use its pointer `*type`
+
+# benchmark
+
+Benchmark is not necessary for this package. It does nothing actually.
+As it is just a thin wrapper to make go runtime public. 
+Both `reflect2` and `reflect` call same function 
+provided by `runtime` package exposed by go language.
+
+# unsafe safety
+
+Instead of casting `[]byte` to `sliceHeader` in your application using unsafe.
+We can use reflect2 instead. This way, if `sliceHeader` changes in the future,
+only reflect2 need to be upgraded.
+
+reflect2 tries its best to keep the implementation same as reflect (by testing).

vendor/github.com/modern-go/reflect2/go_above_17.go

@@ -0,0 +1,8 @@
+//+build go1.7
+
+package reflect2
+
+import "unsafe"
+
+//go:linkname resolveTypeOff reflect.resolveTypeOff
+func resolveTypeOff(rtype unsafe.Pointer, off int32) unsafe.Pointer

vendor/github.com/modern-go/reflect2/go_above_19.go

@@ -0,0 +1,14 @@
+//+build go1.9
+
+package reflect2
+
+import (
+	"unsafe"
+)
+
+//go:linkname makemap reflect.makemap
+func makemap(rtype unsafe.Pointer, cap int) (m unsafe.Pointer)
+
+func makeMapWithSize(rtype unsafe.Pointer, cap int) unsafe.Pointer {
+	return makemap(rtype, cap)
+}

vendor/github.com/modern-go/reflect2/go_below_17.go

@@ -0,0 +1,9 @@
+//+build !go1.7
+
+package reflect2
+
+import "unsafe"
+
+func resolveTypeOff(rtype unsafe.Pointer, off int32) unsafe.Pointer {
+	return nil
+}

vendor/github.com/modern-go/reflect2/go_below_19.go

@@ -0,0 +1,14 @@
+//+build !go1.9
+
+package reflect2
+
+import (
+	"unsafe"
+)
+
+//go:linkname makemap reflect.makemap
+func makemap(rtype unsafe.Pointer) (m unsafe.Pointer)
+
+func makeMapWithSize(rtype unsafe.Pointer, cap int) unsafe.Pointer {
+	return makemap(rtype)
+}

vendor/github.com/modern-go/reflect2/reflect2.go

@@ -0,0 +1,298 @@
+package reflect2
+
+import (
+	"github.com/modern-go/concurrent"
+	"reflect"
+	"unsafe"
+)
+
+type Type interface {
+	Kind() reflect.Kind
+	// New return pointer to data of this type
+	New() interface{}
+	// UnsafeNew return the allocated space pointed by unsafe.Pointer
+	UnsafeNew() unsafe.Pointer
+	// PackEFace cast a unsafe pointer to object represented pointer
+	PackEFace(ptr unsafe.Pointer) interface{}
+	// Indirect dereference object represented pointer to this type
+	Indirect(obj interface{}) interface{}
+	// UnsafeIndirect dereference pointer to this type
+	UnsafeIndirect(ptr unsafe.Pointer) interface{}
+	// Type1 returns reflect.Type
+	Type1() reflect.Type
+	Implements(thatType Type) bool
+	String() string
+	RType() uintptr
+	// interface{} of this type has pointer like behavior
+	LikePtr() bool
+	IsNullable() bool
+	IsNil(obj interface{}) bool
+	UnsafeIsNil(ptr unsafe.Pointer) bool
+	Set(obj interface{}, val interface{})
+	UnsafeSet(ptr unsafe.Pointer, val unsafe.Pointer)
+	AssignableTo(anotherType Type) bool
+}
+
+type ListType interface {
+	Type
+	Elem() Type
+	SetIndex(obj interface{}, index int, elem interface{})
+	UnsafeSetIndex(obj unsafe.Pointer, index int, elem unsafe.Pointer)
+	GetIndex(obj interface{}, index int) interface{}
+	UnsafeGetIndex(obj unsafe.Pointer, index int) unsafe.Pointer
+}
+
+type ArrayType interface {
+	ListType
+	Len() int
+}
+
+type SliceType interface {
+	ListType
+	MakeSlice(length int, cap int) interface{}
+	UnsafeMakeSlice(length int, cap int) unsafe.Pointer
+	Grow(obj interface{}, newLength int)
+	UnsafeGrow(ptr unsafe.Pointer, newLength int)
+	Append(obj interface{}, elem interface{})
+	UnsafeAppend(obj unsafe.Pointer, elem unsafe.Pointer)
+	LengthOf(obj interface{}) int
+	UnsafeLengthOf(ptr unsafe.Pointer) int
+	SetNil(obj interface{})
+	UnsafeSetNil(ptr unsafe.Pointer)
+	Cap(obj interface{}) int
+	UnsafeCap(ptr unsafe.Pointer) int
+}
+
+type StructType interface {
+	Type
+	NumField() int
+	Field(i int) StructField
+	FieldByName(name string) StructField
+	FieldByIndex(index []int) StructField
+	FieldByNameFunc(match func(string) bool) StructField
+}
+
+type StructField interface {
+	Offset() uintptr
+	Name() string
+	PkgPath() string
+	Type() Type
+	Tag() reflect.StructTag
+	Index() []int
+	Anonymous() bool
+	Set(obj interface{}, value interface{})
+	UnsafeSet(obj unsafe.Pointer, value unsafe.Pointer)
+	Get(obj interface{}) interface{}
+	UnsafeGet(obj unsafe.Pointer) unsafe.Pointer
+}
+
+type MapType interface {
+	Type
+	Key() Type
+	Elem() Type
+	MakeMap(cap int) interface{}
+	UnsafeMakeMap(cap int) unsafe.Pointer
+	SetIndex(obj interface{}, key interface{}, elem interface{})
+	UnsafeSetIndex(obj unsafe.Pointer, key unsafe.Pointer, elem unsafe.Pointer)
+	TryGetIndex(obj interface{}, key interface{}) (interface{}, bool)
+	GetIndex(obj interface{}, key interface{}) interface{}
+	UnsafeGetIndex(obj unsafe.Pointer, key unsafe.Pointer) unsafe.Pointer
+	Iterate(obj interface{}) MapIterator
+	UnsafeIterate(obj unsafe.Pointer) MapIterator
+}
+
+type MapIterator interface {
+	HasNext() bool
+	Next() (key interface{}, elem interface{})
+	UnsafeNext() (key unsafe.Pointer, elem unsafe.Pointer)
+}
+
+type PtrType interface {
+	Type
+	Elem() Type
+}
+
+type InterfaceType interface {
+	NumMethod() int
+}
+
+type Config struct {
+	UseSafeImplementation bool
+}
+
+type API interface {
+	TypeOf(obj interface{}) Type
+	Type2(type1 reflect.Type) Type
+}
+
+var ConfigUnsafe = Config{UseSafeImplementation: false}.Froze()
+var ConfigSafe = Config{UseSafeImplementation: true}.Froze()
+
+type frozenConfig struct {
+	useSafeImplementation bool
+	cache                 *concurrent.Map
+}
+
+func (cfg Config) Froze() *frozenConfig {
+	return &frozenConfig{
+		useSafeImplementation: cfg.UseSafeImplementation,
+		cache: concurrent.NewMap(),
+	}
+}
+
+func (cfg *frozenConfig) TypeOf(obj interface{}) Type {
+	cacheKey := uintptr(unpackEFace(obj).rtype)
+	typeObj, found := cfg.cache.Load(cacheKey)
+	if found {
+		return typeObj.(Type)
+	}
+	return cfg.Type2(reflect.TypeOf(obj))
+}
+
+func (cfg *frozenConfig) Type2(type1 reflect.Type) Type {
+	if type1 == nil {
+		return nil
+	}
+	cacheKey := uintptr(unpackEFace(type1).data)
+	typeObj, found := cfg.cache.Load(cacheKey)
+	if found {
+		return typeObj.(Type)
+	}
+	type2 := cfg.wrapType(type1)
+	cfg.cache.Store(cacheKey, type2)
+	return type2
+}
+
+func (cfg *frozenConfig) wrapType(type1 reflect.Type) Type {
+	safeType := safeType{Type: type1, cfg: cfg}
+	switch type1.Kind() {
+	case reflect.Struct:
+		if cfg.useSafeImplementation {
+			return &safeStructType{safeType}
+		}
+		return newUnsafeStructType(cfg, type1)
+	case reflect.Array:
+		if cfg.useSafeImplementation {
+			return &safeSliceType{safeType}
+		}
+		return newUnsafeArrayType(cfg, type1)
+	case reflect.Slice:
+		if cfg.useSafeImplementation {
+			return &safeSliceType{safeType}
+		}
+		return newUnsafeSliceType(cfg, type1)
+	case reflect.Map:
+		if cfg.useSafeImplementation {
+			return &safeMapType{safeType}
+		}
+		return newUnsafeMapType(cfg, type1)
+	case reflect.Ptr, reflect.Chan, reflect.Func:
+		if cfg.useSafeImplementation {
+			return &safeMapType{safeType}
+		}
+		return newUnsafePtrType(cfg, type1)
+	case reflect.Interface:
+		if cfg.useSafeImplementation {
+			return &safeMapType{safeType}
+		}
+		if type1.NumMethod() == 0 {
+			return newUnsafeEFaceType(cfg, type1)
+		}
+		return newUnsafeIFaceType(cfg, type1)
+	default:
+		if cfg.useSafeImplementation {
+			return &safeType
+		}
+		return newUnsafeType(cfg, type1)
+	}
+}
+
+func TypeOf(obj interface{}) Type {
+	return ConfigUnsafe.TypeOf(obj)
+}
+
+func TypeOfPtr(obj interface{}) PtrType {
+	return TypeOf(obj).(PtrType)
+}
+
+func Type2(type1 reflect.Type) Type {
+	if type1 == nil {
+		return nil
+	}
+	return ConfigUnsafe.Type2(type1)
+}
+
+func PtrTo(typ Type) Type {
+	return Type2(reflect.PtrTo(typ.Type1()))
+}
+
+func PtrOf(obj interface{}) unsafe.Pointer {
+	return unpackEFace(obj).data
+}
+
+func RTypeOf(obj interface{}) uintptr {
+	return uintptr(unpackEFace(obj).rtype)
+}
+
+func IsNil(obj interface{}) bool {
+	if obj == nil {
+		return true
+	}
+	return unpackEFace(obj).data == nil
+}
+
+func IsNullable(kind reflect.Kind) bool {
+	switch kind {
+	case reflect.Ptr, reflect.Map, reflect.Chan, reflect.Func, reflect.Slice, reflect.Interface:
+		return true
+	}
+	return false
+}
+
+func likePtrKind(kind reflect.Kind) bool {
+	switch kind {
+	case reflect.Ptr, reflect.Map, reflect.Chan, reflect.Func:
+		return true
+	}
+	return false
+}
+
+func likePtrType(typ reflect.Type) bool {
+	if likePtrKind(typ.Kind()) {
+		return true
+	}
+	if typ.Kind() == reflect.Struct {
+		if typ.NumField() != 1 {
+			return false
+		}
+		return likePtrType(typ.Field(0).Type)
+	}
+	if typ.Kind() == reflect.Array {
+		if typ.Len() != 1 {
+			return false
+		}
+		return likePtrType(typ.Elem())
+	}
+	return false
+}
+
+// NoEscape hides a pointer from escape analysis.  noescape is
+// the identity function but escape analysis doesn't think the
+// output depends on the input.  noescape is inlined and currently
+// compiles down to zero instructions.
+// USE CAREFULLY!
+//go:nosplit
+func NoEscape(p unsafe.Pointer) unsafe.Pointer {
+	x := uintptr(p)
+	return unsafe.Pointer(x ^ 0)
+}
+
+func UnsafeCastString(str string) []byte {
+	stringHeader := (*reflect.StringHeader)(unsafe.Pointer(&str))
+	sliceHeader := &reflect.SliceHeader{
+		Data: stringHeader.Data,
+		Cap: stringHeader.Len,
+		Len: stringHeader.Len,
+	}
+	return *(*[]byte)(unsafe.Pointer(sliceHeader))
+}

vendor/github.com/modern-go/reflect2/reflect2_kind.go

@@ -0,0 +1,30 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+// DefaultTypeOfKind return the non aliased default type for the kind
+func DefaultTypeOfKind(kind reflect.Kind) Type {
+	return kindTypes[kind]
+}
+
+var kindTypes = map[reflect.Kind]Type{
+	reflect.Bool:          TypeOf(true),
+	reflect.Uint8:         TypeOf(uint8(0)),
+	reflect.Int8:          TypeOf(int8(0)),
+	reflect.Uint16:        TypeOf(uint16(0)),
+	reflect.Int16:         TypeOf(int16(0)),
+	reflect.Uint32:        TypeOf(uint32(0)),
+	reflect.Int32:         TypeOf(int32(0)),
+	reflect.Uint64:        TypeOf(uint64(0)),
+	reflect.Int64:         TypeOf(int64(0)),
+	reflect.Uint:          TypeOf(uint(0)),
+	reflect.Int:           TypeOf(int(0)),
+	reflect.Float32:       TypeOf(float32(0)),
+	reflect.Float64:       TypeOf(float64(0)),
+	reflect.Uintptr:       TypeOf(uintptr(0)),
+	reflect.String:        TypeOf(""),
+	reflect.UnsafePointer: TypeOf(unsafe.Pointer(nil)),
+}

vendor/github.com/modern-go/reflect2/safe_field.go

@@ -0,0 +1,58 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type safeField struct {
+	reflect.StructField
+}
+
+func (field *safeField) Offset() uintptr {
+	return field.StructField.Offset
+}
+
+func (field *safeField) Name() string {
+	return field.StructField.Name
+}
+
+func (field *safeField) PkgPath() string {
+	return field.StructField.PkgPath
+}
+
+func (field *safeField) Type() Type {
+	panic("not implemented")
+}
+
+func (field *safeField) Tag() reflect.StructTag {
+	return field.StructField.Tag
+}
+
+func (field *safeField) Index() []int {
+	return field.StructField.Index
+}
+
+func (field *safeField) Anonymous() bool {
+	return field.StructField.Anonymous
+}
+
+func (field *safeField) Set(obj interface{}, value interface{}) {
+	val := reflect.ValueOf(obj).Elem()
+	val.FieldByIndex(field.Index()).Set(reflect.ValueOf(value).Elem())
+}
+
+func (field *safeField) UnsafeSet(obj unsafe.Pointer, value unsafe.Pointer) {
+	panic("unsafe operation is not supported")
+}
+
+func (field *safeField) Get(obj interface{}) interface{} {
+	val := reflect.ValueOf(obj).Elem().FieldByIndex(field.Index())
+	ptr := reflect.New(val.Type())
+	ptr.Elem().Set(val)
+	return ptr.Interface()
+}
+
+func (field *safeField) UnsafeGet(obj unsafe.Pointer) unsafe.Pointer {
+	panic("does not support unsafe operation")
+}

vendor/github.com/modern-go/reflect2/safe_map.go

@@ -0,0 +1,101 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type safeMapType struct {
+	safeType
+}
+
+func (type2 *safeMapType) Key() Type {
+	return type2.safeType.cfg.Type2(type2.Type.Key())
+}
+
+func (type2 *safeMapType) MakeMap(cap int) interface{} {
+	ptr := reflect.New(type2.Type)
+	ptr.Elem().Set(reflect.MakeMap(type2.Type))
+	return ptr.Interface()
+}
+
+func (type2 *safeMapType) UnsafeMakeMap(cap int) unsafe.Pointer {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeMapType) SetIndex(obj interface{}, key interface{}, elem interface{}) {
+	keyVal := reflect.ValueOf(key)
+	elemVal := reflect.ValueOf(elem)
+	val := reflect.ValueOf(obj)
+	val.Elem().SetMapIndex(keyVal.Elem(), elemVal.Elem())
+}
+
+func (type2 *safeMapType) UnsafeSetIndex(obj unsafe.Pointer, key unsafe.Pointer, elem unsafe.Pointer) {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeMapType) TryGetIndex(obj interface{}, key interface{}) (interface{}, bool) {
+	keyVal := reflect.ValueOf(key)
+	if key == nil {
+		keyVal = reflect.New(type2.Type.Key()).Elem()
+	}
+	val := reflect.ValueOf(obj).MapIndex(keyVal)
+	if !val.IsValid() {
+		return nil, false
+	}
+	return val.Interface(), true
+}
+
+func (type2 *safeMapType) GetIndex(obj interface{}, key interface{}) interface{} {
+	val := reflect.ValueOf(obj).Elem()
+	keyVal := reflect.ValueOf(key).Elem()
+	elemVal := val.MapIndex(keyVal)
+	if !elemVal.IsValid() {
+		ptr := reflect.New(reflect.PtrTo(val.Type().Elem()))
+		return ptr.Elem().Interface()
+	}
+	ptr := reflect.New(elemVal.Type())
+	ptr.Elem().Set(elemVal)
+	return ptr.Interface()
+}
+
+func (type2 *safeMapType) UnsafeGetIndex(obj unsafe.Pointer, key unsafe.Pointer) unsafe.Pointer {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeMapType) Iterate(obj interface{}) MapIterator {
+	m := reflect.ValueOf(obj).Elem()
+	return &safeMapIterator{
+		m:    m,
+		keys: m.MapKeys(),
+	}
+}
+
+func (type2 *safeMapType) UnsafeIterate(obj unsafe.Pointer) MapIterator {
+	panic("does not support unsafe operation")
+}
+
+type safeMapIterator struct {
+	i    int
+	m    reflect.Value
+	keys []reflect.Value
+}
+
+func (iter *safeMapIterator) HasNext() bool {
+	return iter.i != len(iter.keys)
+}
+
+func (iter *safeMapIterator) Next() (interface{}, interface{}) {
+	key := iter.keys[iter.i]
+	elem := iter.m.MapIndex(key)
+	iter.i += 1
+	keyPtr := reflect.New(key.Type())
+	keyPtr.Elem().Set(key)
+	elemPtr := reflect.New(elem.Type())
+	elemPtr.Elem().Set(elem)
+	return keyPtr.Interface(), elemPtr.Interface()
+}
+
+func (iter *safeMapIterator) UnsafeNext() (unsafe.Pointer, unsafe.Pointer) {
+	panic("does not support unsafe operation")
+}

vendor/github.com/modern-go/reflect2/safe_slice.go

@@ -0,0 +1,92 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type safeSliceType struct {
+	safeType
+}
+
+func (type2 *safeSliceType) SetIndex(obj interface{}, index int, value interface{}) {
+	val := reflect.ValueOf(obj).Elem()
+	elem := reflect.ValueOf(value).Elem()
+	val.Index(index).Set(elem)
+}
+
+func (type2 *safeSliceType) UnsafeSetIndex(obj unsafe.Pointer, index int, value unsafe.Pointer) {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) GetIndex(obj interface{}, index int) interface{} {
+	val := reflect.ValueOf(obj).Elem()
+	elem := val.Index(index)
+	ptr := reflect.New(elem.Type())
+	ptr.Elem().Set(elem)
+	return ptr.Interface()
+}
+
+func (type2 *safeSliceType) UnsafeGetIndex(obj unsafe.Pointer, index int) unsafe.Pointer {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) MakeSlice(length int, cap int) interface{} {
+	val := reflect.MakeSlice(type2.Type, length, cap)
+	ptr := reflect.New(val.Type())
+	ptr.Elem().Set(val)
+	return ptr.Interface()
+}
+
+func (type2 *safeSliceType) UnsafeMakeSlice(length int, cap int) unsafe.Pointer {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) Grow(obj interface{}, newLength int) {
+	oldCap := type2.Cap(obj)
+	oldSlice := reflect.ValueOf(obj).Elem()
+	delta := newLength - oldCap
+	deltaVals := make([]reflect.Value, delta)
+	newSlice := reflect.Append(oldSlice, deltaVals...)
+	oldSlice.Set(newSlice)
+}
+
+func (type2 *safeSliceType) UnsafeGrow(ptr unsafe.Pointer, newLength int) {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) Append(obj interface{}, elem interface{}) {
+	val := reflect.ValueOf(obj).Elem()
+	elemVal := reflect.ValueOf(elem).Elem()
+	newVal := reflect.Append(val, elemVal)
+	val.Set(newVal)
+}
+
+func (type2 *safeSliceType) UnsafeAppend(obj unsafe.Pointer, elem unsafe.Pointer) {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) SetNil(obj interface{}) {
+	val := reflect.ValueOf(obj).Elem()
+	val.Set(reflect.Zero(val.Type()))
+}
+
+func (type2 *safeSliceType) UnsafeSetNil(ptr unsafe.Pointer) {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) LengthOf(obj interface{}) int {
+	return reflect.ValueOf(obj).Elem().Len()
+}
+
+func (type2 *safeSliceType) UnsafeLengthOf(ptr unsafe.Pointer) int {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeSliceType) Cap(obj interface{}) int {
+	return reflect.ValueOf(obj).Elem().Cap()
+}
+
+func (type2 *safeSliceType) UnsafeCap(ptr unsafe.Pointer) int {
+	panic("does not support unsafe operation")
+}

vendor/github.com/modern-go/reflect2/safe_struct.go

@@ -0,0 +1,29 @@
+package reflect2
+
+type safeStructType struct {
+	safeType
+}
+
+func (type2 *safeStructType) FieldByName(name string) StructField {
+	field, found := type2.Type.FieldByName(name)
+	if !found {
+		panic("field " + name + " not found")
+	}
+	return &safeField{StructField: field}
+}
+
+func (type2 *safeStructType) Field(i int) StructField {
+	return &safeField{StructField: type2.Type.Field(i)}
+}
+
+func (type2 *safeStructType) FieldByIndex(index []int) StructField {
+	return &safeField{StructField: type2.Type.FieldByIndex(index)}
+}
+
+func (type2 *safeStructType) FieldByNameFunc(match func(string) bool) StructField {
+	field, found := type2.Type.FieldByNameFunc(match)
+	if !found {
+		panic("field match condition not found in " + type2.Type.String())
+	}
+	return &safeField{StructField: field}
+}

vendor/github.com/modern-go/reflect2/safe_type.go

@@ -0,0 +1,78 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type safeType struct {
+	reflect.Type
+	cfg *frozenConfig
+}
+
+func (type2 *safeType) New() interface{} {
+	return reflect.New(type2.Type).Interface()
+}
+
+func (type2 *safeType) UnsafeNew() unsafe.Pointer {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) Elem() Type {
+	return type2.cfg.Type2(type2.Type.Elem())
+}
+
+func (type2 *safeType) Type1() reflect.Type {
+	return type2.Type
+}
+
+func (type2 *safeType) PackEFace(ptr unsafe.Pointer) interface{} {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) Implements(thatType Type) bool {
+	return type2.Type.Implements(thatType.Type1())
+}
+
+func (type2 *safeType) RType() uintptr {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) Indirect(obj interface{}) interface{} {
+	return reflect.Indirect(reflect.ValueOf(obj)).Interface()
+}
+
+func (type2 *safeType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) LikePtr() bool {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) IsNullable() bool {
+	return IsNullable(type2.Kind())
+}
+
+func (type2 *safeType) IsNil(obj interface{}) bool {
+	if obj == nil {
+		return true
+	}
+	return reflect.ValueOf(obj).Elem().IsNil()
+}
+
+func (type2 *safeType) UnsafeIsNil(ptr unsafe.Pointer) bool {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) Set(obj interface{}, val interface{}) {
+	reflect.ValueOf(obj).Elem().Set(reflect.ValueOf(val).Elem())
+}
+
+func (type2 *safeType) UnsafeSet(ptr unsafe.Pointer, val unsafe.Pointer) {
+	panic("does not support unsafe operation")
+}
+
+func (type2 *safeType) AssignableTo(anotherType Type) bool {
+	return type2.Type1().AssignableTo(anotherType.Type1())
+}

vendor/github.com/modern-go/reflect2/type_map.go

@@ -0,0 +1,113 @@
+package reflect2
+
+import (
+	"reflect"
+	"runtime"
+	"strings"
+	"sync"
+	"unsafe"
+)
+
+// typelinks1 for 1.5 ~ 1.6
+//go:linkname typelinks1 reflect.typelinks
+func typelinks1() [][]unsafe.Pointer
+
+// typelinks2 for 1.7 ~
+//go:linkname typelinks2 reflect.typelinks
+func typelinks2() (sections []unsafe.Pointer, offset [][]int32)
+
+// initOnce guards initialization of types and packages
+var initOnce sync.Once
+
+var types map[string]reflect.Type
+var packages map[string]map[string]reflect.Type
+
+// discoverTypes initializes types and packages
+func discoverTypes() {
+	types = make(map[string]reflect.Type)
+	packages = make(map[string]map[string]reflect.Type)
+
+	ver := runtime.Version()
+	if ver == "go1.5" || strings.HasPrefix(ver, "go1.5.") {
+		loadGo15Types()
+	} else if ver == "go1.6" || strings.HasPrefix(ver, "go1.6.") {
+		loadGo15Types()
+	} else {
+		loadGo17Types()
+	}
+}
+
+func loadGo15Types() {
+	var obj interface{} = reflect.TypeOf(0)
+	typePtrss := typelinks1()
+	for _, typePtrs := range typePtrss {
+		for _, typePtr := range typePtrs {
+			(*emptyInterface)(unsafe.Pointer(&obj)).word = typePtr
+			typ := obj.(reflect.Type)
+			if typ.Kind() == reflect.Ptr && typ.Elem().Kind() == reflect.Struct {
+				loadedType := typ.Elem()
+				pkgTypes := packages[loadedType.PkgPath()]
+				if pkgTypes == nil {
+					pkgTypes = map[string]reflect.Type{}
+					packages[loadedType.PkgPath()] = pkgTypes
+				}
+				types[loadedType.String()] = loadedType
+				pkgTypes[loadedType.Name()] = loadedType
+			}
+			if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Ptr &&
+				typ.Elem().Elem().Kind() == reflect.Struct {
+				loadedType := typ.Elem().Elem()
+				pkgTypes := packages[loadedType.PkgPath()]
+				if pkgTypes == nil {
+					pkgTypes = map[string]reflect.Type{}
+					packages[loadedType.PkgPath()] = pkgTypes
+				}
+				types[loadedType.String()] = loadedType
+				pkgTypes[loadedType.Name()] = loadedType
+			}
+		}
+	}
+}
+
+func loadGo17Types() {
+	var obj interface{} = reflect.TypeOf(0)
+	sections, offset := typelinks2()
+	for i, offs := range offset {
+		rodata := sections[i]
+		for _, off := range offs {
+			(*emptyInterface)(unsafe.Pointer(&obj)).word = resolveTypeOff(unsafe.Pointer(rodata), off)
+			typ := obj.(reflect.Type)
+			if typ.Kind() == reflect.Ptr && typ.Elem().Kind() == reflect.Struct {
+				loadedType := typ.Elem()
+				pkgTypes := packages[loadedType.PkgPath()]
+				if pkgTypes == nil {
+					pkgTypes = map[string]reflect.Type{}
+					packages[loadedType.PkgPath()] = pkgTypes
+				}
+				types[loadedType.String()] = loadedType
+				pkgTypes[loadedType.Name()] = loadedType
+			}
+		}
+	}
+}
+
+type emptyInterface struct {
+	typ  unsafe.Pointer
+	word unsafe.Pointer
+}
+
+// TypeByName return the type by its name, just like Class.forName in java
+func TypeByName(typeName string) Type {
+	initOnce.Do(discoverTypes)
+	return Type2(types[typeName])
+}
+
+// TypeByPackageName return the type by its package and name
+func TypeByPackageName(pkgPath string, name string) Type {
+	initOnce.Do(discoverTypes)
+	pkgTypes := packages[pkgPath]
+	if pkgTypes == nil {
+		return nil
+	}
+	return Type2(pkgTypes[name])
+}

vendor/github.com/modern-go/reflect2/unsafe_array.go

@@ -0,0 +1,65 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type UnsafeArrayType struct {
+	unsafeType
+	elemRType  unsafe.Pointer
+	pElemRType unsafe.Pointer
+	elemSize   uintptr
+	likePtr    bool
+}
+
+func newUnsafeArrayType(cfg *frozenConfig, type1 reflect.Type) *UnsafeArrayType {
+	return &UnsafeArrayType{
+		unsafeType: *newUnsafeType(cfg, type1),
+		elemRType:  unpackEFace(type1.Elem()).data,
+		pElemRType: unpackEFace(reflect.PtrTo(type1.Elem())).data,
+		elemSize:   type1.Elem().Size(),
+		likePtr:    likePtrType(type1),
+	}
+}
+
+func (type2 *UnsafeArrayType) LikePtr() bool {
+	return type2.likePtr
+}
+
+func (type2 *UnsafeArrayType) Indirect(obj interface{}) interface{} {
+	objEFace := unpackEFace(obj)
+	assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
+	return type2.UnsafeIndirect(objEFace.data)
+}
+
+func (type2 *UnsafeArrayType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
+	if type2.likePtr {
+		return packEFace(type2.rtype, *(*unsafe.Pointer)(ptr))
+	}
+	return packEFace(type2.rtype, ptr)
+}
+
+func (type2 *UnsafeArrayType) SetIndex(obj interface{}, index int, elem interface{}) {
+	objEFace := unpackEFace(obj)
+	assertType("ArrayType.SetIndex argument 1", type2.ptrRType, objEFace.rtype)
+	elemEFace := unpackEFace(elem)
+	assertType("ArrayType.SetIndex argument 3", type2.pElemRType, elemEFace.rtype)
+	type2.UnsafeSetIndex(objEFace.data, index, elemEFace.data)
+}
+
+func (type2 *UnsafeArrayType) UnsafeSetIndex(obj unsafe.Pointer, index int, elem unsafe.Pointer) {
+	elemPtr := arrayAt(obj, index, type2.elemSize, "i < s.Len")
+	typedmemmove(type2.elemRType, elemPtr, elem)
+}
+
+func (type2 *UnsafeArrayType) GetIndex(obj interface{}, index int) interface{} {
+	objEFace := unpackEFace(obj)
+	assertType("ArrayType.GetIndex argument 1", type2.ptrRType, objEFace.rtype)
+	elemPtr := type2.UnsafeGetIndex(objEFace.data, index)
+	return packEFace(type2.pElemRType, elemPtr)
+}
+
+func (type2 *UnsafeArrayType) UnsafeGetIndex(obj unsafe.Pointer, index int) unsafe.Pointer {
+	return arrayAt(obj, index, type2.elemSize, "i < s.Len")
+}

vendor/github.com/modern-go/reflect2/unsafe_eface.go

@@ -0,0 +1,59 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type eface struct {
+	rtype unsafe.Pointer
+	data  unsafe.Pointer
+}
+
+func unpackEFace(obj interface{}) *eface {
+	return (*eface)(unsafe.Pointer(&obj))
+}
+
+func packEFace(rtype unsafe.Pointer, data unsafe.Pointer) interface{} {
+	var i interface{}
+	e := (*eface)(unsafe.Pointer(&i))
+	e.rtype = rtype
+	e.data = data
+	return i
+}
+
+type UnsafeEFaceType struct {
+	unsafeType
+}
+
+func newUnsafeEFaceType(cfg *frozenConfig, type1 reflect.Type) *UnsafeEFaceType {
+	return &UnsafeEFaceType{
+		unsafeType: *newUnsafeType(cfg, type1),
+	}
+}
+
+func (type2 *UnsafeEFaceType) IsNil(obj interface{}) bool {
+	if obj == nil {
+		return true
+	}
+	objEFace := unpackEFace(obj)
+	assertType("Type.IsNil argument 1", type2.ptrRType, objEFace.rtype)
+	return type2.UnsafeIsNil(objEFace.data)
+}
+
+func (type2 *UnsafeEFaceType) UnsafeIsNil(ptr unsafe.Pointer) bool {
+	if ptr == nil {
+		return true
+	}
+	return unpackEFace(*(*interface{})(ptr)).data == nil
+}
+
+func (type2 *UnsafeEFaceType) Indirect(obj interface{}) interface{} {
+	objEFace := unpackEFace(obj)
+	assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
+	return type2.UnsafeIndirect(objEFace.data)
+}
+
+func (type2 *UnsafeEFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
+	return *(*interface{})(ptr)
+}

vendor/github.com/modern-go/reflect2/unsafe_field.go

@@ -0,0 +1,74 @@
+package reflect2
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+type UnsafeStructField struct {
+	reflect.StructField
+	structType *UnsafeStructType
+	rtype      unsafe.Pointer
+	ptrRType   unsafe.Pointer
+}
+
+func newUnsafeStructField(structType *UnsafeStructType, structField reflect.StructField) *UnsafeStructField {
+	return &UnsafeStructField{
+		StructField: structField,
+		rtype:       unpackEFace(structField.Type).data,
+		ptrRType:    unpackEFace(reflect.PtrTo(structField.Type)).data,
+		structType:  structType,
+	}
+}
+
+func (field *UnsafeStructField) Offset() uintptr {
+	return field.StructField.Offset
+}
+
+func (field *UnsafeStructField) Name() string {
+	return field.StructField.Name
+}
+
+func (field *UnsafeStructField) PkgPath() string {
+	return field.StructField.PkgPath
+}
+
+func (field *UnsafeStructField) Type() Type {
+	return field.structType.cfg.Type2(field.StructField.Type)
+}
+
+func (field *UnsafeStructField) Tag() reflect.StructTag {
+	return field.StructField.Tag
+}
+
+func (field *UnsafeStructField) Index() []int {
+	return field.StructField.Index
+}
+
+func (field *UnsafeStructField) Anonymous() bool {
+	return field.StructField.Anonymous
+}
+
+func (field *UnsafeStructField) Set(obj interface{}, value interface{}) {
+	objEFace := unpackEFace(obj)
+	assertType("StructField.SetIndex argument 1", field.structType.ptrRType, objEFace.rtype)
+	valueEFace := unpackEFace(value)
+	assertType("StructField.SetIndex argument 2", field.ptrRType, valueEFace.rtype)
+	field.UnsafeSet(objEFace.data, valueEFace.data)
+}
+
+func (field *UnsafeStructField) UnsafeSet(obj unsafe.Pointer, value unsafe.Pointer) {
+	fieldPtr := add(obj, field.StructField.Offset, "same as non-reflect &v.field")
+	typedmemmove(field.rtype, fieldPtr, value)
+}
+
+func (field *UnsafeStructField) Get(obj interface{}) interface{} {
+	objEFace := unpackEFace(obj)
+	assertType("StructField.GetIndex argument 1", field.structType.ptrRType, objEFace.rtype)
+	value := field.UnsafeGet(objEFace.data)
+	return packEFace(field.ptrRType, value)
+}
+
+func (field *UnsafeStructField) UnsafeGet(obj unsafe.Pointer) unsafe.Pointer {
+	return add(obj, field.StructField.Offset, "same as non-reflect &v.field")
+}