Add a storage layer for attachments (#11387)

* Add a storage layer for attachments

* Fix some bug

* fix test

* Fix copyright head and lint

* Fix bug

* Add setting for minio and flags for migrate-storage

* Add documents

* fix lint

* Add test for minio store type on attachments

* fix test

* fix test

* Apply suggestions from code review

Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Add warning when storage migrated successfully

* Fix drone

* fix test

* rebase

* Fix test

* display the error on console

* Move minio test to amd64 since minio docker don't support arm64

* refactor the codes

* add trace

* Fix test

* remove log on xorm

* Fi download bug

* Add a storage layer for attachments

* Add setting for minio and flags for migrate-storage

* fix lint

* Add test for minio store type on attachments

* Apply suggestions from code review

Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Fix drone

* fix test

* Fix test

* display the error on console

* Move minio test to amd64 since minio docker don't support arm64

* refactor the codes

* add trace

* Fix test

* Add URL function to serve attachments directly from S3/Minio

* Add ability to enable/disable redirection in attachment configuration

* Fix typo

* Add a storage layer for attachments

* Add setting for minio and flags for migrate-storage

* fix lint

* Add test for minio store type on attachments

* Apply suggestions from code review

Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Fix drone

* fix test

* Fix test

* display the error on console

* Move minio test to amd64 since minio docker don't support arm64

* don't change unrelated files

* Fix lint

* Fix build

* update go.mod and go.sum

* Use github.com/minio/minio-go/v6

* Remove unused function

* Upgrade minio to v7 and some other improvements

* fix lint

* Fix go mod

Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
Co-authored-by: Tyler <tystuyfzand@gmail.com>

vendor/github.com/json-iterator/go/.codecov.yml

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

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

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

vendor/github.com/json-iterator/go/.travis.yml

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

vendor/github.com/json-iterator/go/Gopkg.lock

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

vendor/github.com/json-iterator/go/Gopkg.toml

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

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

@@ -0,0 +1,21 @@
+MIT License
+
+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
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

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/build.sh

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

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/fuzzy_mode_convert_table.md

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

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/go.sum

@@ -0,0 +1,14 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/gofuzz v1.0.0 h1:A8PeW59pxE9IoFRqBp37U+mSNaQoZ46F1f0f863XSXw=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

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/json-iterator/go/test.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+for d in $(go list ./... | grep -v vendor); do
+    go test -coverprofile=profile.out -coverpkg=github.com/json-iterator/go $d
+    if [ -f profile.out ]; then
+        cat profile.out >> coverage.txt
+        rm profile.out
+    fi
+done

vendor/github.com/klauspost/cpuid/.gitignore

@@ -0,0 +1,24 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof

vendor/github.com/klauspost/cpuid/.travis.yml

@@ -0,0 +1,46 @@
+language: go
+
+os:
+  - linux
+  - osx
+  - windows
+
+arch:
+  - amd64
+  - arm64
+
+go:
+  - 1.12.x
+  - 1.13.x
+  - 1.14.x
+  - master
+
+script:
+  - go vet ./...
+  - go test -race ./...
+  - go test -tags=noasm ./...
+
+stages:
+  - gofmt
+  - test
+
+matrix:
+  allow_failures:
+    - go: 'master'
+  fast_finish: true
+  include:
+    - stage: gofmt
+      go: 1.14.x
+      os: linux
+      arch: amd64
+      script:
+        - diff <(gofmt -d .) <(printf "")
+        - diff <(gofmt -d ./private) <(printf "")
+        - go install github.com/klauspost/asmfmt/cmd/asmfmt
+        - diff <(asmfmt -d .) <(printf "")
+    - stage: i386
+      go: 1.14.x
+      os: linux
+      arch: amd64
+      script:
+        - GOOS=linux GOARCH=386 go test .

vendor/github.com/klauspost/cpuid/CONTRIBUTING.txt

@@ -0,0 +1,35 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2015- Klaus Post & Contributors.
+Email: klauspost@gmail.com
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.

vendor/github.com/klauspost/cpuid/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Klaus Post
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

vendor/github.com/klauspost/cpuid/README.md

@@ -0,0 +1,191 @@
+# cpuid
+Package cpuid provides information about the CPU running the current program.
+
+CPU features are detected on startup, and kept for fast access through the life of the application.
+Currently x86 / x64 (AMD64/i386) and ARM (ARM64) is supported, and no external C (cgo) code is used, which should make the library very easy to use.
+
+You can access the CPU information by accessing the shared CPU variable of the cpuid library.
+
+Package home: https://github.com/klauspost/cpuid
+
+[![GoDoc][1]][2] [![Build Status][3]][4]
+
+[1]: https://godoc.org/github.com/klauspost/cpuid?status.svg
+[2]: https://godoc.org/github.com/klauspost/cpuid
+[3]: https://travis-ci.org/klauspost/cpuid.svg?branch=master
+[4]: https://travis-ci.org/klauspost/cpuid
+
+# features
+
+## x86 CPU Instructions
+*  **CMOV** (i686 CMOV)
+*  **NX** (NX (No-Execute) bit)
+*  **AMD3DNOW** (AMD 3DNOW)
+*  **AMD3DNOWEXT** (AMD 3DNowExt)
+*  **MMX** (standard MMX)
+*  **MMXEXT** (SSE integer functions or AMD MMX ext)
+*  **SSE** (SSE functions)
+*  **SSE2** (P4 SSE functions)
+*  **SSE3** (Prescott SSE3 functions)
+*  **SSSE3** (Conroe SSSE3 functions)
+*  **SSE4** (Penryn SSE4.1 functions)
+*  **SSE4A** (AMD Barcelona microarchitecture SSE4a instructions)
+*  **SSE42** (Nehalem SSE4.2 functions)
+*  **AVX** (AVX functions)
+*  **AVX2** (AVX2 functions)
+*  **FMA3** (Intel FMA 3)
+*  **FMA4** (Bulldozer FMA4 functions)
+*  **XOP** (Bulldozer XOP functions)
+*  **F16C** (Half-precision floating-point conversion)
+*  **BMI1** (Bit Manipulation Instruction Set 1)
+*  **BMI2** (Bit Manipulation Instruction Set 2)
+*  **TBM** (AMD Trailing Bit Manipulation)
+*  **LZCNT** (LZCNT instruction)
+*  **POPCNT** (POPCNT instruction)
+*  **AESNI** (Advanced Encryption Standard New Instructions)
+*  **CLMUL** (Carry-less Multiplication)
+*  **HTT** (Hyperthreading (enabled))
+*  **HLE** (Hardware Lock Elision)
+*  **RTM** (Restricted Transactional Memory)
+*  **RDRAND** (RDRAND instruction is available)
+*  **RDSEED** (RDSEED instruction is available)
+*  **ADX** (Intel ADX (Multi-Precision Add-Carry Instruction Extensions))
+*  **SHA** (Intel SHA Extensions)
+*  **AVX512F** (AVX-512 Foundation)
+*  **AVX512DQ** (AVX-512 Doubleword and Quadword Instructions)
+*  **AVX512IFMA** (AVX-512 Integer Fused Multiply-Add Instructions)
+*  **AVX512PF** (AVX-512 Prefetch Instructions)
+*  **AVX512ER** (AVX-512 Exponential and Reciprocal Instructions)
+*  **AVX512CD** (AVX-512 Conflict Detection Instructions)
+*  **AVX512BW** (AVX-512 Byte and Word Instructions)
+*  **AVX512VL** (AVX-512 Vector Length Extensions)
+*  **AVX512VBMI** (AVX-512 Vector Bit Manipulation Instructions)
+*  **AVX512VBMI2** (AVX-512 Vector Bit Manipulation Instructions, Version 2)
+*  **AVX512VNNI** (AVX-512 Vector Neural Network Instructions)
+*  **AVX512VPOPCNTDQ** (AVX-512 Vector Population Count Doubleword and Quadword)
+*  **GFNI** (Galois Field New Instructions)
+*  **VAES** (Vector AES)
+*  **AVX512BITALG** (AVX-512 Bit Algorithms)
+*  **VPCLMULQDQ** (Carry-Less Multiplication Quadword)
+*  **AVX512BF16** (AVX-512 BFLOAT16 Instructions)
+*  **AVX512VP2INTERSECT** (AVX-512 Intersect for D/Q)
+*  **MPX** (Intel MPX (Memory Protection Extensions))
+*  **ERMS** (Enhanced REP MOVSB/STOSB)
+*  **RDTSCP** (RDTSCP Instruction)
+*  **CX16** (CMPXCHG16B Instruction)
+*  **SGX** (Software Guard Extensions, with activation details)
+*  **VMX** (Virtual Machine Extensions)
+
+## Performance
+*  **RDTSCP()** Returns current cycle count. Can be used for benchmarking.
+*  **SSE2SLOW** (SSE2 is supported, but usually not faster)
+*  **SSE3SLOW** (SSE3 is supported, but usually not faster)
+*  **ATOM** (Atom processor, some SSSE3 instructions are slower)
+*  **Cache line** (Probable size of a cache line).
+*  **L1, L2, L3 Cache size** on newer Intel/AMD CPUs.
+
+## ARM CPU features
+
+# ARM FEATURE DETECTION DISABLED!
+
+See [#52](https://github.com/klauspost/cpuid/issues/52).
+ 
+Currently only `arm64` platforms are implemented. 
+
+*  **FP**  Single-precision and double-precision floating point
+*  **ASIMD**  Advanced SIMD
+*  **EVTSTRM**  Generic timer
+*  **AES**  AES instructions
+*  **PMULL**  Polynomial Multiply instructions (PMULL/PMULL2)
+*  **SHA1**  SHA-1 instructions (SHA1C, etc)
+*  **SHA2**      SHA-2 instructions (SHA256H, etc)
+*  **CRC32**   CRC32/CRC32C instructions
+*  **ATOMICS**   Large System Extensions (LSE)
+*  **FPHP** Half-precision floating point
+*  **ASIMDHP**  Advanced SIMD half-precision floating point
+*  **ARMCPUID**  Some CPU ID registers readable at user-level
+*  **ASIMDRDM**  Rounding Double Multiply Accumulate/Subtract (SQRDMLAH/SQRDMLSH)
+*  **JSCVT** Javascript-style double->int convert (FJCVTZS)
+*  **FCMA**  Floating point complex number addition and multiplication
+*  **LRCPC**  Weaker release consistency (LDAPR, etc)
+*  **DCPOP**  Data cache clean to Point of Persistence (DC CVAP)
+*  **SHA3**  SHA-3 instructions (EOR3, RAXI, XAR, BCAX)
+*  **SM3** SM3 instructions
+*  **SM4**  SM4 instructions
+*  **ASIMDDP**  SIMD Dot Product
+*  **SHA512**  SHA512 instructions
+*  **SVE** Scalable Vector Extension
+*  **GPA**  Generic Pointer Authentication
+
+## Cpu Vendor/VM
+* **Intel**
+* **AMD**
+* **VIA**
+* **Transmeta**
+* **NSC**
+* **KVM**  (Kernel-based Virtual Machine)
+* **MSVM** (Microsoft Hyper-V or Windows Virtual PC)
+* **VMware**
+* **XenHVM**
+* **Bhyve**
+* **Hygon**
+
+# installing
+
+```go get github.com/klauspost/cpuid```
+
+# example
+
+```Go
+package main
+
+import (
+	"fmt"
+	"github.com/klauspost/cpuid"
+)
+
+func main() {
+	// Print basic CPU information:
+	fmt.Println("Name:", cpuid.CPU.BrandName)
+	fmt.Println("PhysicalCores:", cpuid.CPU.PhysicalCores)
+	fmt.Println("ThreadsPerCore:", cpuid.CPU.ThreadsPerCore)
+	fmt.Println("LogicalCores:", cpuid.CPU.LogicalCores)
+	fmt.Println("Family", cpuid.CPU.Family, "Model:", cpuid.CPU.Model)
+	fmt.Println("Features:", cpuid.CPU.Features)
+	fmt.Println("Cacheline bytes:", cpuid.CPU.CacheLine)
+	fmt.Println("L1 Data Cache:", cpuid.CPU.Cache.L1D, "bytes")
+	fmt.Println("L1 Instruction Cache:", cpuid.CPU.Cache.L1D, "bytes")
+	fmt.Println("L2 Cache:", cpuid.CPU.Cache.L2, "bytes")
+	fmt.Println("L3 Cache:", cpuid.CPU.Cache.L3, "bytes")
+
+	// Test if we have a specific feature:
+	if cpuid.CPU.SSE() {
+		fmt.Println("We have Streaming SIMD Extensions")
+	}
+}
+```
+
+Sample output:
+```
+>go run main.go
+Name: Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz
+PhysicalCores: 2
+ThreadsPerCore: 2
+LogicalCores: 4
+Family 6 Model: 42
+Features: CMOV,MMX,MMXEXT,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX,AESNI,CLMUL
+Cacheline bytes: 64
+We have Streaming SIMD Extensions
+```
+
+# private package
+
+In the "private" folder you can find an autogenerated version of the library you can include in your own packages.
+
+For this purpose all exports are removed, and functions and constants are lowercased.
+
+This is not a recommended way of using the library, but provided for convenience, if it is difficult for you to use external packages.
+
+# license
+
+This code is published under an MIT license. See LICENSE file for more information.

vendor/github.com/klauspost/cpuid/cpuid_386.s

@@ -0,0 +1,42 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build 386,!gccgo,!noasm,!appengine
+
+// func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32)
+TEXT ·asmCpuid(SB), 7, $0
+	XORL CX, CX
+	MOVL op+0(FP), AX
+	CPUID
+	MOVL AX, eax+4(FP)
+	MOVL BX, ebx+8(FP)
+	MOVL CX, ecx+12(FP)
+	MOVL DX, edx+16(FP)
+	RET
+
+// func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
+TEXT ·asmCpuidex(SB), 7, $0
+	MOVL op+0(FP), AX
+	MOVL op2+4(FP), CX
+	CPUID
+	MOVL AX, eax+8(FP)
+	MOVL BX, ebx+12(FP)
+	MOVL CX, ecx+16(FP)
+	MOVL DX, edx+20(FP)
+	RET
+
+// func xgetbv(index uint32) (eax, edx uint32)
+TEXT ·asmXgetbv(SB), 7, $0
+	MOVL index+0(FP), CX
+	BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
+	MOVL AX, eax+4(FP)
+	MOVL DX, edx+8(FP)
+	RET
+
+// func asmRdtscpAsm() (eax, ebx, ecx, edx uint32)
+TEXT ·asmRdtscpAsm(SB), 7, $0
+	BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP
+	MOVL AX, eax+0(FP)
+	MOVL BX, ebx+4(FP)
+	MOVL CX, ecx+8(FP)
+	MOVL DX, edx+12(FP)
+	RET

vendor/github.com/klauspost/cpuid/cpuid_amd64.s

@@ -0,0 +1,42 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build amd64,!gccgo,!noasm,!appengine
+
+// func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32)
+TEXT ·asmCpuid(SB), 7, $0
+	XORQ CX, CX
+	MOVL op+0(FP), AX
+	CPUID
+	MOVL AX, eax+8(FP)
+	MOVL BX, ebx+12(FP)
+	MOVL CX, ecx+16(FP)
+	MOVL DX, edx+20(FP)
+	RET
+
+// func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
+TEXT ·asmCpuidex(SB), 7, $0
+	MOVL op+0(FP), AX
+	MOVL op2+4(FP), CX
+	CPUID
+	MOVL AX, eax+8(FP)
+	MOVL BX, ebx+12(FP)
+	MOVL CX, ecx+16(FP)
+	MOVL DX, edx+20(FP)
+	RET
+
+// func asmXgetbv(index uint32) (eax, edx uint32)
+TEXT ·asmXgetbv(SB), 7, $0
+	MOVL index+0(FP), CX
+	BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
+	MOVL AX, eax+8(FP)
+	MOVL DX, edx+12(FP)
+	RET
+
+// func asmRdtscpAsm() (eax, ebx, ecx, edx uint32)
+TEXT ·asmRdtscpAsm(SB), 7, $0
+	BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP
+	MOVL AX, eax+0(FP)
+	MOVL BX, ebx+4(FP)
+	MOVL CX, ecx+8(FP)
+	MOVL DX, edx+12(FP)
+	RET

vendor/github.com/klauspost/cpuid/cpuid_arm64.s

@@ -0,0 +1,26 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build arm64,!gccgo
+
+// See https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt
+
+// func getMidr
+TEXT ·getMidr(SB), 7, $0
+	WORD $0xd5380000    // mrs x0, midr_el1         /* Main ID Register */
+	MOVD R0, midr+0(FP)
+	RET
+
+// func getProcFeatures
+TEXT ·getProcFeatures(SB), 7, $0
+	WORD $0xd5380400            // mrs x0, id_aa64pfr0_el1  /* Processor Feature Register 0 */
+	MOVD R0, procFeatures+0(FP)
+	RET
+
+// func getInstAttributes
+TEXT ·getInstAttributes(SB), 7, $0
+	WORD $0xd5380600            // mrs x0, id_aa64isar0_el1 /* Instruction Set Attribute Register 0 */
+	WORD $0xd5380621            // mrs x1, id_aa64isar1_el1 /* Instruction Set Attribute Register 1 */
+	MOVD R0, instAttrReg0+0(FP)
+	MOVD R1, instAttrReg1+8(FP)
+	RET
+

vendor/github.com/klauspost/cpuid/detect_arm64.go

@@ -0,0 +1,219 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build arm64,!gccgo,!noasm,!appengine
+
+package cpuid
+
+func getMidr() (midr uint64)
+func getProcFeatures() (procFeatures uint64)
+func getInstAttributes() (instAttrReg0, instAttrReg1 uint64)
+
+func initCPU() {
+	cpuid = func(uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
+	cpuidex = func(x, y uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
+	xgetbv = func(uint32) (a, b uint32) { return 0, 0 }
+	rdtscpAsm = func() (a, b, c, d uint32) { return 0, 0, 0, 0 }
+}
+
+func addInfo(c *CPUInfo) {
+	// ARM64 disabled for now.
+	if true {
+		return
+	}
+	// 	midr := getMidr()
+
+	// MIDR_EL1 - Main ID Register
+	//  x--------------------------------------------------x
+	//  | Name                         |  bits   | visible |
+	//  |--------------------------------------------------|
+	//  | Implementer                  | [31-24] |    y    |
+	//  |--------------------------------------------------|
+	//  | Variant                      | [23-20] |    y    |
+	//  |--------------------------------------------------|
+	//  | Architecture                 | [19-16] |    y    |
+	//  |--------------------------------------------------|
+	//  | PartNum                      | [15-4]  |    y    |
+	//  |--------------------------------------------------|
+	//  | Revision                     | [3-0]   |    y    |
+	//  x--------------------------------------------------x
+
+	// 	fmt.Printf(" implementer:  0x%02x\n", (midr>>24)&0xff)
+	// 	fmt.Printf("     variant:   0x%01x\n", (midr>>20)&0xf)
+	// 	fmt.Printf("architecture:   0x%01x\n", (midr>>16)&0xf)
+	// 	fmt.Printf("    part num: 0x%03x\n", (midr>>4)&0xfff)
+	// 	fmt.Printf("    revision:   0x%01x\n", (midr>>0)&0xf)
+
+	procFeatures := getProcFeatures()
+
+	// ID_AA64PFR0_EL1 - Processor Feature Register 0
+	// x--------------------------------------------------x
+	// | Name                         |  bits   | visible |
+	// |--------------------------------------------------|
+	// | DIT                          | [51-48] |    y    |
+	// |--------------------------------------------------|
+	// | SVE                          | [35-32] |    y    |
+	// |--------------------------------------------------|
+	// | GIC                          | [27-24] |    n    |
+	// |--------------------------------------------------|
+	// | AdvSIMD                      | [23-20] |    y    |
+	// |--------------------------------------------------|
+	// | FP                           | [19-16] |    y    |
+	// |--------------------------------------------------|
+	// | EL3                          | [15-12] |    n    |
+	// |--------------------------------------------------|
+	// | EL2                          | [11-8]  |    n    |
+	// |--------------------------------------------------|
+	// | EL1                          | [7-4]   |    n    |
+	// |--------------------------------------------------|
+	// | EL0                          | [3-0]   |    n    |
+	// x--------------------------------------------------x
+
+	var f ArmFlags
+	// if procFeatures&(0xf<<48) != 0 {
+	// 	fmt.Println("DIT")
+	// }
+	if procFeatures&(0xf<<32) != 0 {
+		f |= SVE
+	}
+	if procFeatures&(0xf<<20) != 15<<20 {
+		f |= ASIMD
+		if procFeatures&(0xf<<20) == 1<<20 {
+			// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64pfr0_el1
+			// 0b0001 --> As for 0b0000, and also includes support for half-precision floating-point arithmetic.
+			f |= FPHP
+			f |= ASIMDHP
+		}
+	}
+	if procFeatures&(0xf<<16) != 0 {
+		f |= FP
+	}
+
+	instAttrReg0, instAttrReg1 := getInstAttributes()
+
+	// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
+	//
+	// ID_AA64ISAR0_EL1 - Instruction Set Attribute Register 0
+	// x--------------------------------------------------x
+	// | Name                         |  bits   | visible |
+	// |--------------------------------------------------|
+	// | TS                           | [55-52] |    y    |
+	// |--------------------------------------------------|
+	// | FHM                          | [51-48] |    y    |
+	// |--------------------------------------------------|
+	// | DP                           | [47-44] |    y    |
+	// |--------------------------------------------------|
+	// | SM4                          | [43-40] |    y    |
+	// |--------------------------------------------------|
+	// | SM3                          | [39-36] |    y    |
+	// |--------------------------------------------------|
+	// | SHA3                         | [35-32] |    y    |
+	// |--------------------------------------------------|
+	// | RDM                          | [31-28] |    y    |
+	// |--------------------------------------------------|
+	// | ATOMICS                      | [23-20] |    y    |
+	// |--------------------------------------------------|
+	// | CRC32                        | [19-16] |    y    |
+	// |--------------------------------------------------|
+	// | SHA2                         | [15-12] |    y    |
+	// |--------------------------------------------------|
+	// | SHA1                         | [11-8]  |    y    |
+	// |--------------------------------------------------|
+	// | AES                          | [7-4]   |    y    |
+	// x--------------------------------------------------x
+
+	// if instAttrReg0&(0xf<<52) != 0 {
+	// 	fmt.Println("TS")
+	// }
+	// if instAttrReg0&(0xf<<48) != 0 {
+	// 	fmt.Println("FHM")
+	// }
+	if instAttrReg0&(0xf<<44) != 0 {
+		f |= ASIMDDP
+	}
+	if instAttrReg0&(0xf<<40) != 0 {
+		f |= SM4
+	}
+	if instAttrReg0&(0xf<<36) != 0 {
+		f |= SM3
+	}
+	if instAttrReg0&(0xf<<32) != 0 {
+		f |= SHA3
+	}
+	if instAttrReg0&(0xf<<28) != 0 {
+		f |= ASIMDRDM
+	}
+	if instAttrReg0&(0xf<<20) != 0 {
+		f |= ATOMICS
+	}
+	if instAttrReg0&(0xf<<16) != 0 {
+		f |= CRC32
+	}
+	if instAttrReg0&(0xf<<12) != 0 {
+		f |= SHA2
+	}
+	if instAttrReg0&(0xf<<12) == 2<<12 {
+		// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
+		// 0b0010 --> As 0b0001, plus SHA512H, SHA512H2, SHA512SU0, and SHA512SU1 instructions implemented.
+		f |= SHA512
+	}
+	if instAttrReg0&(0xf<<8) != 0 {
+		f |= SHA1
+	}
+	if instAttrReg0&(0xf<<4) != 0 {
+		f |= AES
+	}
+	if instAttrReg0&(0xf<<4) == 2<<4 {
+		// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
+		// 0b0010 --> As for 0b0001, plus PMULL/PMULL2 instructions operating on 64-bit data quantities.
+		f |= PMULL
+	}
+
+	// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar1_el1
+	//
+	// ID_AA64ISAR1_EL1 - Instruction set attribute register 1
+	// x--------------------------------------------------x
+	// | Name                         |  bits   | visible |
+	// |--------------------------------------------------|
+	// | GPI                          | [31-28] |    y    |
+	// |--------------------------------------------------|
+	// | GPA                          | [27-24] |    y    |
+	// |--------------------------------------------------|
+	// | LRCPC                        | [23-20] |    y    |
+	// |--------------------------------------------------|
+	// | FCMA                         | [19-16] |    y    |
+	// |--------------------------------------------------|
+	// | JSCVT                        | [15-12] |    y    |
+	// |--------------------------------------------------|
+	// | API                          | [11-8]  |    y    |
+	// |--------------------------------------------------|
+	// | APA                          | [7-4]   |    y    |
+	// |--------------------------------------------------|
+	// | DPB                          | [3-0]   |    y    |
+	// x--------------------------------------------------x
+
+	// if instAttrReg1&(0xf<<28) != 0 {
+	// 	fmt.Println("GPI")
+	// }
+	if instAttrReg1&(0xf<<28) != 24 {
+		f |= GPA
+	}
+	if instAttrReg1&(0xf<<20) != 0 {
+		f |= LRCPC
+	}
+	if instAttrReg1&(0xf<<16) != 0 {
+		f |= FCMA
+	}
+	if instAttrReg1&(0xf<<12) != 0 {
+		f |= JSCVT
+	}
+	// if instAttrReg1&(0xf<<8) != 0 {
+	// 	fmt.Println("API")
+	// }
+	// if instAttrReg1&(0xf<<4) != 0 {
+	// 	fmt.Println("APA")
+	// }
+	if instAttrReg1&(0xf<<0) != 0 {
+		f |= DCPOP
+	}
+	c.Arm = f
+}

vendor/github.com/klauspost/cpuid/detect_intel.go

@@ -0,0 +1,33 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build 386,!gccgo,!noasm amd64,!gccgo,!noasm,!appengine
+
+package cpuid
+
+func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32)
+func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
+func asmXgetbv(index uint32) (eax, edx uint32)
+func asmRdtscpAsm() (eax, ebx, ecx, edx uint32)
+
+func initCPU() {
+	cpuid = asmCpuid
+	cpuidex = asmCpuidex
+	xgetbv = asmXgetbv
+	rdtscpAsm = asmRdtscpAsm
+}
+
+func addInfo(c *CPUInfo) {
+	c.maxFunc = maxFunctionID()
+	c.maxExFunc = maxExtendedFunction()
+	c.BrandName = brandName()
+	c.CacheLine = cacheLine()
+	c.Family, c.Model = familyModel()
+	c.Features = support()
+	c.SGX = hasSGX(c.Features&SGX != 0, c.Features&SGXLC != 0)
+	c.ThreadsPerCore = threadsPerCore()
+	c.LogicalCores = logicalCores()
+	c.PhysicalCores = physicalCores()
+	c.VendorID, c.VendorString = vendorID()
+	c.Hz = hertz(c.BrandName)
+	c.cacheSize()
+}

vendor/github.com/klauspost/cpuid/detect_ref.go

@@ -0,0 +1,14 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build !amd64,!386,!arm64 gccgo noasm appengine
+
+package cpuid
+
+func initCPU() {
+	cpuid = func(uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
+	cpuidex = func(x, y uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
+	xgetbv = func(uint32) (a, b uint32) { return 0, 0 }
+	rdtscpAsm = func() (a, b, c, d uint32) { return 0, 0, 0, 0 }
+}
+
+func addInfo(info *CPUInfo) {}

vendor/github.com/klauspost/cpuid/go.mod

@@ -0,0 +1,3 @@
+module github.com/klauspost/cpuid
+
+go 1.12

vendor/github.com/minio/md5-simd/LICENSE

@@ -0,0 +1,202 @@
+
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+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/minio/md5-simd/README.md

@@ -0,0 +1,196 @@
+
+# md5-simd
+
+This is a SIMD accelerated MD5 package, allowing up to either 8 (AVX2) or 16 (AVX512) independent MD5 sums to be calculated on a single CPU core.
+
+It was originally based on the [md5vec](https://github.com/igneous-systems/md5vec) repository by Igneous Systems, but has been made more flexible by amongst others supporting different message sizes per lane and adding AVX512.
+
+`md5-simd` integrates a similar mechanism as described in [minio/sha256-simd](https://github.com/minio/sha256-simd#support-for-avx512) for making it easy for clients to take advantages of the parallel nature of the MD5 calculation. This will result in reduced overall CPU load. 
+
+It is important to understand that `md5-simd` **does not speed up** a single threaded MD5 hash sum. 
+Rather it allows multiple __independent__  MD5 sums to be computed in parallel on the same CPU core, 
+thereby making more efficient usage of the computing resources.
+
+## Usage
+
+[![Documentation](https://godoc.org/github.com/minio/md5-simd?status.svg)](https://pkg.go.dev/github.com/minio/md5-simd?tab=doc)
+
+
+In order to use `md5-simd`, you must first create an `Server` which can be 
+used to instantiate one or more objects for MD5 hashing. 
+
+These objects conform to the regular [`hash.Hash`](https://pkg.go.dev/hash?tab=doc#Hash) interface 
+and as such the normal Write/Reset/Sum functionality works as expected. 
+
+As an example: 
+```
+    // Create server
+    server := md5simd.NewServer()
+    defer server.Close()
+
+    // Create hashing object (conforming to hash.Hash)
+    md5Hash := server.NewHash()
+    defer md5Hash.Close()
+
+    // Write one (or more) blocks
+    md5Hash.Write(block)
+    
+    // Return digest
+    digest := md5Hash.Sum([]byte{})
+```
+
+To keep performance both a [Server](https://pkg.go.dev/github.com/minio/md5-simd?tab=doc#Server) 
+and individual [Hasher](https://pkg.go.dev/github.com/minio/md5-simd?tab=doc#Hasher) should 
+be closed using the `Close()` function when no longer needed.
+
+A Hasher can efficiently be re-used by using [`Reset()`](https://pkg.go.dev/hash?tab=doc#Hash) functionality.
+
+In case your system does not support the instructions required it will fall back to using `crypto/md5` for hashing.
+
+## Limitations
+
+As explained above `md5-simd` does not speed up an individual MD5 hash sum computation,
+unless some hierarchical tree construct is used but this will result in different outcomes.
+Running a single hash on a server results in approximately half the throughput.
+
+Instead, it allows running multiple MD5 calculations in parallel on a single CPU core. 
+This can be beneficial in e.g. multi-threaded server applications where many go-routines 
+are dealing with many requests and multiple MD5 calculations can be packed/scheduled for parallel execution on a single core.
+
+This will result in a lower overall CPU usage as compared to using the standard `crypto/md5`
+functionality where each MD5 hash computation will consume a single thread (core).
+
+It is best to test and measure the overall CPU usage in a representative usage scenario in your application
+to get an overall understanding of the benefits of `md5-simd` as compared to `crypto/md5`, ideally under heavy CPU load.
+
+Also note that `md5-simd` is best meant to work with large objects, 
+so if your application only hashes small objects of a few kilobytes 
+you may be better of by using `crypto/md5`.
+
+## Performance
+
+For the best performance writes should be a multiple of 64 bytes, ideally a multiple of 32KB.
+To help with that a [`buffered := bufio.NewWriterSize(hasher, 32<<10)`](https://golang.org/pkg/bufio/#NewWriterSize) 
+can be inserted if you are unsure of the sizes of the writes. 
+Remember to [flush](https://golang.org/pkg/bufio/#Writer.Flush) `buffered` before reading the hash. 
+
+A single 'server' can process 16 streams concurrently with 1 core (AVX-512) or 2 cores (AVX2). 
+In situations where it is likely that more than 16 streams are fully loaded it may be beneficial
+to use multiple servers.
+
+The following chart compares the multi-core performance between `crypto/md5` vs the AVX2 vs the AVX512 code:
+
+![md5-performance-overview](chart/Multi-core-MD5-Aggregated-Hashing-Performance.png)
+
+Compared to `crypto/md5`, the AVX2 version is up to 4x faster:
+
+```
+$ benchcmp crypto-md5.txt avx2.txt 
+benchmark                     old MB/s     new MB/s     speedup
+BenchmarkParallel/32KB-4      2229.22      7370.50      3.31x
+BenchmarkParallel/64KB-4      2233.61      8248.46      3.69x
+BenchmarkParallel/128KB-4     2235.43      8660.74      3.87x
+BenchmarkParallel/256KB-4     2236.39      8863.87      3.96x
+BenchmarkParallel/512KB-4     2238.05      8985.39      4.01x
+BenchmarkParallel/1MB-4       2233.56      9042.62      4.05x
+BenchmarkParallel/2MB-4       2224.11      9014.46      4.05x
+BenchmarkParallel/4MB-4       2199.78      8993.61      4.09x
+BenchmarkParallel/8MB-4       2182.48      8748.22      4.01x
+```
+
+Compared to `crypto/md5`, the AVX512 is up to 8x faster (for larger block sizes):
+
+```
+$ benchcmp crypto-md5.txt avx512.txt
+benchmark                     old MB/s     new MB/s     speedup
+BenchmarkParallel/32KB-4      2229.22      11605.78     5.21x
+BenchmarkParallel/64KB-4      2233.61      14329.65     6.42x
+BenchmarkParallel/128KB-4     2235.43      16166.39     7.23x
+BenchmarkParallel/256KB-4     2236.39      15570.09     6.96x
+BenchmarkParallel/512KB-4     2238.05      16705.83     7.46x
+BenchmarkParallel/1MB-4       2233.56      16941.95     7.59x
+BenchmarkParallel/2MB-4       2224.11      17136.01     7.70x
+BenchmarkParallel/4MB-4       2199.78      17218.61     7.83x
+BenchmarkParallel/8MB-4       2182.48      17252.88     7.91x
+```
+
+These measurements were performed on AWS EC2 instance of type `c5.xlarge` equipped with a Xeon Platinum 8124M CPU at 3.0 GHz.
+
+
+## Operation
+
+To make operation as easy as possible there is a “Server” coordinating everything. The server keeps track of individual hash states and updates them as new data comes in. This can be visualized as follows:
+
+![server-architecture](chart/server-architecture.png)
+
+The data is sent to the server from each hash input in blocks of up to 32KB per round. In our testing we found this to be the block size that yielded the best results.
+
+Whenever there is data available the server will collect data for up to 16 hashes and process all 16 lanes in parallel. This means that if 16 hashes have data available all the lanes will be filled. However since that may not be the case, the server will fill less lanes and do a round anyway. Lanes can also be partially filled if less than 32KB of data is written.
+
+![server-lanes-example](chart/server-lanes-example.png)
+
+In this example 4 lanes are fully filled and 2 lanes are partially filled. In this case the black areas will simply be masked out from the results and ignored. This is also why calculating a single hash on a server will not result in any speedup and hash writes should be a multiple of 32KB for the best performance.
+
+For AVX512 all 16 calculations will be done on a single core, on AVX2 on 2 cores if there is data for more than 8 lanes.
+So for optimal usage there should be data available for all 16 hashes. It may be perfectly reasonable to use more than 16 concurrent hashes.
+
+
+## Design & Tech
+
+md5-simd has both an AVX2 (8-lane parallel), and an AVX512 (16-lane parallel version) algorithm to accelerate the computation with the following function definitions:
+```
+//go:noescape
+func block8(state *uint32, base uintptr, bufs *int32, cache *byte, n int)
+
+//go:noescape
+func block16(state *uint32, ptrs *int64, mask uint64, n int)
+```
+
+The AVX2 version is based on the [md5vec](https://github.com/igneous-systems/md5vec) repository and is essentially unchanged except for minor (cosmetic) changes.
+
+The AVX512 version is derived from the AVX2 version but adds some further optimizations and simplifications.
+
+### Caching in upper ZMM registers
+
+The AVX2 version passes in a `cache8` block of memory (about 0.5 KB) for temporary storage of intermediate results during `ROUND1` which are subsequently used during `ROUND2` through to `ROUND4`.
+
+Since AVX512 has double the amount of registers (32 ZMM registers as compared to 16 YMM registers), it is possible to use the upper 16 ZMM registers for keeping the intermediate states on the CPU. As such, there is no need to pass in a corresponding `cache16` into the AVX512 block function.
+
+### Direct loading using 64-bit pointers
+
+The AVX2 uses the `VPGATHERDD` instruction (for YMM) to do a parallel load of 8 lanes using (8 independent) 32-bit offets. Since there is no control over how the 8 slices that are passed into the (Golang) `blockMd5` function are laid out into memory, it is not possible to derive a "base" address and corresponding offsets (all within 32-bits) for all 8 slices.
+
+As such the AVX2 version uses an interim buffer to collect the byte slices to be hashed from all 8 inut slices and passed this buffer along with (fixed) 32-bit offsets into the assembly code.
+
+For the AVX512 version this interim buffer is not needed since the AVX512 code uses a pair of `VPGATHERQD` instructions to directly dereference 64-bit pointers (from a base register address that is initialized to zero).
+
+Note that two load (gather) instructions are needed because the AVX512 version processes 16-lanes in parallel, requiring 16 times 64-bit = 1024 bits in total to be loaded. A simple `VALIGND` and `VPORD` are subsequently used to merge the lower and upper halves together into a single ZMM register (that contains 16 lanes of 32-bit DWORDS).
+
+### Masking support
+
+Due to the fact that pointers are passed directly from the Golang slices, we need to protect against NULL pointers. 
+For this a 16-bit mask is passed in the AVX512 assembly code which is used during the `VPGATHERQD` instructions to mask out lanes that could otherwise result in segment violations.
+
+### Minor optimizations
+
+The `roll` macro (three instructions on AVX2) is no longer needed for AVX512 and is replaced by a single `VPROLD` instruction.
+
+Also several logical operations from the various ROUNDS of the AVX2 version could be combined into a single instruction using ternary logic (with the `VPTERMLOGD` instruction), resulting in a further simplification and speed-up.
+
+## Low level block function performance
+
+The benchmark below shows the (single thread) maximum performance of the `block()` function for AVX2 (having 8 lanes) and AVX512 (having 16 lanes). Also the baseline single-core performance from the standard `crypto/md5` package is shown for comparison.
+
+```
+BenchmarkCryptoMd5-4                     687.66 MB/s           0 B/op          0 allocs/op
+BenchmarkBlock8-4                       4144.80 MB/s           0 B/op          0 allocs/op
+BenchmarkBlock16-4                      8228.88 MB/s           0 B/op          0 allocs/op
+```
+
+## License
+
+`md5-simd` is released under the Apache License v2.0. You can find the complete text in the file LICENSE.
+
+## Contributing
+
+Contributions are welcome, please send PRs for any enhancements.

vendor/github.com/minio/md5-simd/block-generic.go

@@ -0,0 +1,132 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Code generated by go run gen.go -output md5block.go; DO NOT EDIT.
+
+package md5simd
+
+import (
+	"encoding/binary"
+	"math/bits"
+)
+
+type digest struct {
+	s   [4]uint32
+	x   [BlockSize]byte
+	nx  int
+	len uint64
+}
+
+func blockGeneric(dig *digest, p []byte) {
+	// load state
+	a, b, c, d := dig.s[0], dig.s[1], dig.s[2], dig.s[3]
+
+	for i := 0; i <= len(p)-BlockSize; i += BlockSize {
+		// eliminate bounds checks on p
+		q := p[i:]
+		q = q[:BlockSize:BlockSize]
+
+		// save current state
+		aa, bb, cc, dd := a, b, c, d
+
+		// load input block
+		x0 := binary.LittleEndian.Uint32(q[4*0x0:])
+		x1 := binary.LittleEndian.Uint32(q[4*0x1:])
+		x2 := binary.LittleEndian.Uint32(q[4*0x2:])
+		x3 := binary.LittleEndian.Uint32(q[4*0x3:])
+		x4 := binary.LittleEndian.Uint32(q[4*0x4:])
+		x5 := binary.LittleEndian.Uint32(q[4*0x5:])
+		x6 := binary.LittleEndian.Uint32(q[4*0x6:])
+		x7 := binary.LittleEndian.Uint32(q[4*0x7:])
+		x8 := binary.LittleEndian.Uint32(q[4*0x8:])
+		x9 := binary.LittleEndian.Uint32(q[4*0x9:])
+		xa := binary.LittleEndian.Uint32(q[4*0xa:])
+		xb := binary.LittleEndian.Uint32(q[4*0xb:])
+		xc := binary.LittleEndian.Uint32(q[4*0xc:])
+		xd := binary.LittleEndian.Uint32(q[4*0xd:])
+		xe := binary.LittleEndian.Uint32(q[4*0xe:])
+		xf := binary.LittleEndian.Uint32(q[4*0xf:])
+
+		// round 1
+		a = b + bits.RotateLeft32((((c^d)&b)^d)+a+x0+0xd76aa478, 7)
+		d = a + bits.RotateLeft32((((b^c)&a)^c)+d+x1+0xe8c7b756, 12)
+		c = d + bits.RotateLeft32((((a^b)&d)^b)+c+x2+0x242070db, 17)
+		b = c + bits.RotateLeft32((((d^a)&c)^a)+b+x3+0xc1bdceee, 22)
+		a = b + bits.RotateLeft32((((c^d)&b)^d)+a+x4+0xf57c0faf, 7)
+		d = a + bits.RotateLeft32((((b^c)&a)^c)+d+x5+0x4787c62a, 12)
+		c = d + bits.RotateLeft32((((a^b)&d)^b)+c+x6+0xa8304613, 17)
+		b = c + bits.RotateLeft32((((d^a)&c)^a)+b+x7+0xfd469501, 22)
+		a = b + bits.RotateLeft32((((c^d)&b)^d)+a+x8+0x698098d8, 7)
+		d = a + bits.RotateLeft32((((b^c)&a)^c)+d+x9+0x8b44f7af, 12)
+		c = d + bits.RotateLeft32((((a^b)&d)^b)+c+xa+0xffff5bb1, 17)
+		b = c + bits.RotateLeft32((((d^a)&c)^a)+b+xb+0x895cd7be, 22)
+		a = b + bits.RotateLeft32((((c^d)&b)^d)+a+xc+0x6b901122, 7)
+		d = a + bits.RotateLeft32((((b^c)&a)^c)+d+xd+0xfd987193, 12)
+		c = d + bits.RotateLeft32((((a^b)&d)^b)+c+xe+0xa679438e, 17)
+		b = c + bits.RotateLeft32((((d^a)&c)^a)+b+xf+0x49b40821, 22)
+
+		// round 2
+		a = b + bits.RotateLeft32((((b^c)&d)^c)+a+x1+0xf61e2562, 5)
+		d = a + bits.RotateLeft32((((a^b)&c)^b)+d+x6+0xc040b340, 9)
+		c = d + bits.RotateLeft32((((d^a)&b)^a)+c+xb+0x265e5a51, 14)
+		b = c + bits.RotateLeft32((((c^d)&a)^d)+b+x0+0xe9b6c7aa, 20)
+		a = b + bits.RotateLeft32((((b^c)&d)^c)+a+x5+0xd62f105d, 5)
+		d = a + bits.RotateLeft32((((a^b)&c)^b)+d+xa+0x02441453, 9)
+		c = d + bits.RotateLeft32((((d^a)&b)^a)+c+xf+0xd8a1e681, 14)
+		b = c + bits.RotateLeft32((((c^d)&a)^d)+b+x4+0xe7d3fbc8, 20)
+		a = b + bits.RotateLeft32((((b^c)&d)^c)+a+x9+0x21e1cde6, 5)
+		d = a + bits.RotateLeft32((((a^b)&c)^b)+d+xe+0xc33707d6, 9)
+		c = d + bits.RotateLeft32((((d^a)&b)^a)+c+x3+0xf4d50d87, 14)
+		b = c + bits.RotateLeft32((((c^d)&a)^d)+b+x8+0x455a14ed, 20)
+		a = b + bits.RotateLeft32((((b^c)&d)^c)+a+xd+0xa9e3e905, 5)
+		d = a + bits.RotateLeft32((((a^b)&c)^b)+d+x2+0xfcefa3f8, 9)
+		c = d + bits.RotateLeft32((((d^a)&b)^a)+c+x7+0x676f02d9, 14)
+		b = c + bits.RotateLeft32((((c^d)&a)^d)+b+xc+0x8d2a4c8a, 20)
+
+		// round 3
+		a = b + bits.RotateLeft32((b^c^d)+a+x5+0xfffa3942, 4)
+		d = a + bits.RotateLeft32((a^b^c)+d+x8+0x8771f681, 11)
+		c = d + bits.RotateLeft32((d^a^b)+c+xb+0x6d9d6122, 16)
+		b = c + bits.RotateLeft32((c^d^a)+b+xe+0xfde5380c, 23)
+		a = b + bits.RotateLeft32((b^c^d)+a+x1+0xa4beea44, 4)
+		d = a + bits.RotateLeft32((a^b^c)+d+x4+0x4bdecfa9, 11)
+		c = d + bits.RotateLeft32((d^a^b)+c+x7+0xf6bb4b60, 16)
+		b = c + bits.RotateLeft32((c^d^a)+b+xa+0xbebfbc70, 23)
+		a = b + bits.RotateLeft32((b^c^d)+a+xd+0x289b7ec6, 4)
+		d = a + bits.RotateLeft32((a^b^c)+d+x0+0xeaa127fa, 11)
+		c = d + bits.RotateLeft32((d^a^b)+c+x3+0xd4ef3085, 16)
+		b = c + bits.RotateLeft32((c^d^a)+b+x6+0x04881d05, 23)
+		a = b + bits.RotateLeft32((b^c^d)+a+x9+0xd9d4d039, 4)
+		d = a + bits.RotateLeft32((a^b^c)+d+xc+0xe6db99e5, 11)
+		c = d + bits.RotateLeft32((d^a^b)+c+xf+0x1fa27cf8, 16)
+		b = c + bits.RotateLeft32((c^d^a)+b+x2+0xc4ac5665, 23)
+
+		// round 4
+		a = b + bits.RotateLeft32((c^(b|^d))+a+x0+0xf4292244, 6)
+		d = a + bits.RotateLeft32((b^(a|^c))+d+x7+0x432aff97, 10)
+		c = d + bits.RotateLeft32((a^(d|^b))+c+xe+0xab9423a7, 15)
+		b = c + bits.RotateLeft32((d^(c|^a))+b+x5+0xfc93a039, 21)
+		a = b + bits.RotateLeft32((c^(b|^d))+a+xc+0x655b59c3, 6)
+		d = a + bits.RotateLeft32((b^(a|^c))+d+x3+0x8f0ccc92, 10)
+		c = d + bits.RotateLeft32((a^(d|^b))+c+xa+0xffeff47d, 15)
+		b = c + bits.RotateLeft32((d^(c|^a))+b+x1+0x85845dd1, 21)
+		a = b + bits.RotateLeft32((c^(b|^d))+a+x8+0x6fa87e4f, 6)
+		d = a + bits.RotateLeft32((b^(a|^c))+d+xf+0xfe2ce6e0, 10)
+		c = d + bits.RotateLeft32((a^(d|^b))+c+x6+0xa3014314, 15)
+		b = c + bits.RotateLeft32((d^(c|^a))+b+xd+0x4e0811a1, 21)
+		a = b + bits.RotateLeft32((c^(b|^d))+a+x4+0xf7537e82, 6)
+		d = a + bits.RotateLeft32((b^(a|^c))+d+xb+0xbd3af235, 10)
+		c = d + bits.RotateLeft32((a^(d|^b))+c+x2+0x2ad7d2bb, 15)
+		b = c + bits.RotateLeft32((d^(c|^a))+b+x9+0xeb86d391, 21)
+
+		// add saved state
+		a += aa
+		b += bb
+		c += cc
+		d += dd
+	}
+
+	// save state
+	dig.s[0], dig.s[1], dig.s[2], dig.s[3] = a, b, c, d
+}

vendor/github.com/minio/md5-simd/block16_amd64.s

@@ -0,0 +1,227 @@
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+// This is the AVX512 implementation of the MD5 block function (16-way parallel)
+
+#define prep(index) \
+	KMOVQ	   kmask, ktmp					    \
+	VPGATHERDD index*4(base)(ptrs*1), ktmp, mem
+
+#define ROUND1(a, b, c, d, index, const, shift) \
+	VXORPS  c, tmp, tmp            \
+	VPADDD  64*const(consts), a, a \
+	VPADDD  mem, a, a              \
+	VPTERNLOGD $0x6C, b, d, tmp    \
+	prep(index)                    \
+	VPADDD  tmp, a, a              \
+	VPROLD $shift, a, a            \
+	VMOVAPD c, tmp                 \
+	VPADDD  b, a, a
+
+#define ROUND1noload(a, b, c, d, const, shift) \
+	VXORPS  c, tmp, tmp            \
+	VPADDD  64*const(consts), a, a \
+	VPADDD  mem, a, a              \
+	VPTERNLOGD $0x6C, b, d, tmp    \
+	VPADDD  tmp, a, a              \
+	VPROLD $shift, a, a            \
+	VMOVAPD c, tmp                 \
+	VPADDD  b, a, a
+
+#define ROUND2(a, b, c, d, zreg, const, shift) \
+	VPADDD  64*const(consts), a, a \
+	VPADDD  zreg, a, a             \
+	VANDNPS c, tmp, tmp            \
+	VPTERNLOGD $0xEC, b, tmp, tmp2 \
+	VMOVAPD c, tmp                 \
+	VPADDD  tmp2, a, a             \
+	VMOVAPD c, tmp2                \
+	VPROLD $shift, a, a            \
+	VPADDD  b, a, a
+
+#define ROUND3(a, b, c, d, zreg, const, shift) \
+	VPADDD  64*const(consts), a, a \
+	VPADDD  zreg, a, a             \
+	VPTERNLOGD $0x96, b, d, tmp    \
+	VPADDD  tmp, a, a              \
+	VPROLD $shift, a, a            \
+	VMOVAPD b, tmp                 \
+	VPADDD  b, a, a
+
+#define ROUND4(a, b, c, d, zreg, const, shift) \
+	VPADDD 64*const(consts), a, a \
+	VPADDD zreg, a, a             \
+	VPTERNLOGD $0x36, b, c, tmp   \
+	VPADDD tmp, a, a              \
+	VPROLD $shift, a, a           \
+	VXORPS c, ones, tmp           \
+	VPADDD b, a, a
+
+TEXT ·block16(SB),4,$0-40
+
+    MOVQ  state+0(FP), BX
+    MOVQ  base+8(FP), SI
+    MOVQ  ptrs+16(FP), AX
+    KMOVQ mask+24(FP), K1
+    MOVQ  n+32(FP), DX
+    MOVQ  ·avx512md5consts+0(SB), DI
+
+#define a Z0
+#define b Z1
+#define c Z2
+#define d Z3
+
+#define sa Z4
+#define sb Z5
+#define sc Z6
+#define sd Z7
+
+#define tmp       Z8
+#define tmp2      Z9
+#define ptrs     Z10
+#define ones     Z12
+#define mem      Z15
+
+#define kmask  K1
+#define ktmp   K3
+
+// ----------------------------------------------------------
+// Registers Z16 through to Z31 are used for caching purposes
+// ----------------------------------------------------------
+
+
+#define dig    BX
+#define count  DX
+#define base   SI
+#define consts DI
+
+	// load digest into state registers
+	VMOVUPD (dig), a
+	VMOVUPD 0x40(dig), b
+	VMOVUPD 0x80(dig), c
+	VMOVUPD 0xc0(dig), d
+
+	// load source pointers
+	VMOVUPD 0x00(AX), ptrs
+
+	MOVQ $-1, AX
+	VPBROADCASTQ AX, ones
+
+loop:
+	VMOVAPD a, sa
+	VMOVAPD b, sb
+	VMOVAPD c, sc
+	VMOVAPD d, sd
+
+	prep(0)
+	VMOVAPD d, tmp
+	VMOVAPD mem, Z16
+
+	ROUND1(a,b,c,d, 1,0x00, 7)
+	VMOVAPD mem, Z17
+	ROUND1(d,a,b,c, 2,0x01,12)
+	VMOVAPD mem, Z18
+	ROUND1(c,d,a,b, 3,0x02,17)
+	VMOVAPD mem, Z19
+	ROUND1(b,c,d,a, 4,0x03,22)
+	VMOVAPD mem, Z20
+	ROUND1(a,b,c,d, 5,0x04, 7)
+	VMOVAPD mem, Z21
+	ROUND1(d,a,b,c, 6,0x05,12)
+	VMOVAPD mem, Z22
+	ROUND1(c,d,a,b, 7,0x06,17)
+	VMOVAPD mem, Z23
+	ROUND1(b,c,d,a, 8,0x07,22)
+	VMOVAPD mem, Z24
+	ROUND1(a,b,c,d, 9,0x08, 7)
+	VMOVAPD mem, Z25
+	ROUND1(d,a,b,c,10,0x09,12)
+	VMOVAPD mem, Z26
+	ROUND1(c,d,a,b,11,0x0a,17)
+	VMOVAPD mem, Z27
+	ROUND1(b,c,d,a,12,0x0b,22)
+	VMOVAPD mem, Z28
+	ROUND1(a,b,c,d,13,0x0c, 7)
+	VMOVAPD mem, Z29
+	ROUND1(d,a,b,c,14,0x0d,12)
+	VMOVAPD mem, Z30
+	ROUND1(c,d,a,b,15,0x0e,17)
+	VMOVAPD mem, Z31
+
+	ROUND1noload(b,c,d,a, 0x0f,22)
+
+	VMOVAPD d, tmp
+	VMOVAPD d, tmp2
+
+	ROUND2(a,b,c,d, Z17,0x10, 5)
+	ROUND2(d,a,b,c, Z22,0x11, 9)
+	ROUND2(c,d,a,b, Z27,0x12,14)
+	ROUND2(b,c,d,a, Z16,0x13,20)
+	ROUND2(a,b,c,d, Z21,0x14, 5)
+	ROUND2(d,a,b,c, Z26,0x15, 9)
+	ROUND2(c,d,a,b, Z31,0x16,14)
+	ROUND2(b,c,d,a, Z20,0x17,20)
+	ROUND2(a,b,c,d, Z25,0x18, 5)
+	ROUND2(d,a,b,c, Z30,0x19, 9)
+	ROUND2(c,d,a,b, Z19,0x1a,14)
+	ROUND2(b,c,d,a, Z24,0x1b,20)
+	ROUND2(a,b,c,d, Z29,0x1c, 5)
+	ROUND2(d,a,b,c, Z18,0x1d, 9)
+	ROUND2(c,d,a,b, Z23,0x1e,14)
+	ROUND2(b,c,d,a, Z28,0x1f,20)
+
+	VMOVAPD c, tmp
+
+	ROUND3(a,b,c,d, Z21,0x20, 4)
+	ROUND3(d,a,b,c, Z24,0x21,11)
+	ROUND3(c,d,a,b, Z27,0x22,16)
+	ROUND3(b,c,d,a, Z30,0x23,23)
+	ROUND3(a,b,c,d, Z17,0x24, 4)
+	ROUND3(d,a,b,c, Z20,0x25,11)
+	ROUND3(c,d,a,b, Z23,0x26,16)
+	ROUND3(b,c,d,a, Z26,0x27,23)
+	ROUND3(a,b,c,d, Z29,0x28, 4)
+	ROUND3(d,a,b,c, Z16,0x29,11)
+	ROUND3(c,d,a,b, Z19,0x2a,16)
+	ROUND3(b,c,d,a, Z22,0x2b,23)
+	ROUND3(a,b,c,d, Z25,0x2c, 4)
+	ROUND3(d,a,b,c, Z28,0x2d,11)
+	ROUND3(c,d,a,b, Z31,0x2e,16)
+	ROUND3(b,c,d,a, Z18,0x2f,23)
+
+	VXORPS d, ones, tmp
+
+	ROUND4(a,b,c,d, Z16,0x30, 6)
+	ROUND4(d,a,b,c, Z23,0x31,10)
+	ROUND4(c,d,a,b, Z30,0x32,15)
+	ROUND4(b,c,d,a, Z21,0x33,21)
+	ROUND4(a,b,c,d, Z28,0x34, 6)
+	ROUND4(d,a,b,c, Z19,0x35,10)
+	ROUND4(c,d,a,b, Z26,0x36,15)
+	ROUND4(b,c,d,a, Z17,0x37,21)
+	ROUND4(a,b,c,d, Z24,0x38, 6)
+	ROUND4(d,a,b,c, Z31,0x39,10)
+	ROUND4(c,d,a,b, Z22,0x3a,15)
+	ROUND4(b,c,d,a, Z29,0x3b,21)
+	ROUND4(a,b,c,d, Z20,0x3c, 6)
+	ROUND4(d,a,b,c, Z27,0x3d,10)
+	ROUND4(c,d,a,b, Z18,0x3e,15)
+	ROUND4(b,c,d,a, Z25,0x3f,21)
+
+	VPADDD sa, a, a
+	VPADDD sb, b, b
+	VPADDD sc, c, c
+	VPADDD sd, d, d
+
+	LEAQ 64(base), base
+	SUBQ $64, count
+	JNE  loop
+
+	VMOVUPD a, (dig)
+	VMOVUPD b, 0x40(dig)
+	VMOVUPD c, 0x80(dig)
+	VMOVUPD d, 0xc0(dig)
+
+	VZEROUPPER
+	RET

vendor/github.com/minio/md5-simd/block8_amd64.s

@@ -0,0 +1,279 @@
+// Copyright (c) 2018 Igneous Systems
+//   MIT License
+//
+//   Permission is hereby granted, free of charge, to any person obtaining a copy
+//   of this software and associated documentation files (the "Software"), to deal
+//   in the Software without restriction, including without limitation the rights
+//   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//   copies of the Software, and to permit persons to whom the Software is
+//   furnished to do so, subject to the following conditions:
+//
+//   The above copyright notice and this permission notice shall be included in all
+//   copies or substantial portions of the Software.
+//
+//   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//   SOFTWARE.
+
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+//   Use of this source code is governed by a license that can be
+//   found in the LICENSE file.
+
+// This is the AVX2 implementation of the MD5 block function (8-way parallel)
+
+// block8(state *uint64, base uintptr, bufs *int32, cache *byte, n int)
+TEXT ·block8(SB), 4, $0-40
+	MOVQ state+0(FP), BX
+	MOVQ base+8(FP), SI
+	MOVQ bufs+16(FP), AX
+	MOVQ cache+24(FP), CX
+	MOVQ n+32(FP), DX
+	MOVQ ·avx256md5consts+0(SB), DI
+
+	// Align cache (which is stack allocated by the compiler)
+	// to a 256 bit boundary (ymm register alignment)
+	// The cache8 type is deliberately oversized to permit this.
+	ADDQ $31, CX
+	ANDB $-32, CL
+
+#define a Y0
+#define b Y1
+#define c Y2
+#define d Y3
+
+#define sa Y4
+#define sb Y5
+#define sc Y6
+#define sd Y7
+
+#define tmp  Y8
+#define tmp2 Y9
+
+#define mask Y10
+#define off  Y11
+
+#define ones Y12
+
+#define rtmp1  Y13
+#define rtmp2  Y14
+
+#define mem   Y15
+
+#define dig    BX
+#define cache  CX
+#define count  DX
+#define base   SI
+#define consts DI
+
+#define prepmask \
+	VXORPS   mask, mask, mask \
+	VPCMPGTD mask, off, mask
+
+#define prep(index) \
+	VMOVAPD    mask, rtmp2                      \
+	VPGATHERDD rtmp2, index*4(base)(off*1), mem
+
+#define load(index) \
+	VMOVAPD index*32(cache), mem
+
+#define store(index) \
+	VMOVAPD mem, index*32(cache)
+
+#define roll(shift, a) \
+	VPSLLD $shift, a, rtmp1 \
+	VPSRLD $32-shift, a, a  \
+	VORPS  rtmp1, a, a
+
+#define ROUND1(a, b, c, d, index, const, shift) \
+	VXORPS  c, tmp, tmp            \
+	VPADDD  32*const(consts), a, a \
+	VPADDD  mem, a, a              \
+	VANDPS  b, tmp, tmp            \
+	VXORPS  d, tmp, tmp            \
+	prep(index)                    \
+	VPADDD  tmp, a, a              \
+	roll(shift,a)                  \
+	VMOVAPD c, tmp                 \
+	VPADDD  b, a, a
+
+#define ROUND1load(a, b, c, d, index, const, shift) \
+	VXORPS  c, tmp, tmp            \
+	VPADDD  32*const(consts), a, a \
+	VPADDD  mem, a, a              \
+	VANDPS  b, tmp, tmp            \
+	VXORPS  d, tmp, tmp            \
+	load(index)                    \
+	VPADDD  tmp, a, a              \
+	roll(shift,a)                  \
+	VMOVAPD c, tmp                 \
+	VPADDD  b, a, a
+
+#define ROUND2(a, b, c, d, index, const, shift) \
+	VPADDD  32*const(consts), a, a \
+	VPADDD  mem, a, a              \
+	VANDPS  b, tmp2, tmp2          \
+	VANDNPS c, tmp, tmp            \
+	load(index)                    \
+	VORPS   tmp, tmp2, tmp2        \
+	VMOVAPD c, tmp                 \
+	VPADDD  tmp2, a, a             \
+	VMOVAPD c, tmp2                \
+	roll(shift,a)                  \
+	VPADDD  b, a, a
+
+#define ROUND3(a, b, c, d, index, const, shift) \
+	VPADDD  32*const(consts), a, a \
+	VPADDD  mem, a, a              \
+	load(index)                    \
+	VXORPS  d, tmp, tmp            \
+	VXORPS  b, tmp, tmp            \
+	VPADDD  tmp, a, a              \
+	roll(shift,a)                  \
+	VMOVAPD b, tmp                 \
+	VPADDD  b, a, a
+
+#define ROUND4(a, b, c, d, index, const, shift) \
+	VPADDD 32*const(consts), a, a \
+	VPADDD mem, a, a              \
+	VORPS  b, tmp, tmp            \
+	VXORPS c, tmp, tmp            \
+	VPADDD tmp, a, a              \
+	load(index)                   \
+	roll(shift,a)                 \
+	VXORPS c, ones, tmp           \
+	VPADDD b, a, a
+
+	// load digest into state registers
+	VMOVUPD (dig), a
+	VMOVUPD 32(dig), b
+	VMOVUPD 64(dig), c
+	VMOVUPD 96(dig), d
+
+	// load source buffer offsets
+	VMOVUPD (AX), off
+
+	prepmask
+	VPCMPEQD ones, ones, ones
+
+loop:
+	VMOVAPD a, sa
+	VMOVAPD b, sb
+	VMOVAPD c, sc
+	VMOVAPD d, sd
+
+	prep(0)
+	VMOVAPD d, tmp
+	store(0)
+
+	ROUND1(a,b,c,d, 1,0x00, 7)
+	store(1)
+	ROUND1(d,a,b,c, 2,0x01,12)
+	store(2)
+	ROUND1(c,d,a,b, 3,0x02,17)
+	store(3)
+	ROUND1(b,c,d,a, 4,0x03,22)
+	store(4)
+	ROUND1(a,b,c,d, 5,0x04, 7)
+	store(5)
+	ROUND1(d,a,b,c, 6,0x05,12)
+	store(6)
+	ROUND1(c,d,a,b, 7,0x06,17)
+	store(7)
+	ROUND1(b,c,d,a, 8,0x07,22)
+	store(8)
+	ROUND1(a,b,c,d, 9,0x08, 7)
+	store(9)
+	ROUND1(d,a,b,c,10,0x09,12)
+	store(10)
+	ROUND1(c,d,a,b,11,0x0a,17)
+	store(11)
+	ROUND1(b,c,d,a,12,0x0b,22)
+	store(12)
+	ROUND1(a,b,c,d,13,0x0c, 7)
+	store(13)
+	ROUND1(d,a,b,c,14,0x0d,12)
+	store(14)
+	ROUND1(c,d,a,b,15,0x0e,17)
+	store(15)
+	ROUND1load(b,c,d,a, 1,0x0f,22)
+
+	VMOVAPD d, tmp
+	VMOVAPD d, tmp2
+
+	ROUND2(a,b,c,d, 6,0x10, 5)
+	ROUND2(d,a,b,c,11,0x11, 9)
+	ROUND2(c,d,a,b, 0,0x12,14)
+	ROUND2(b,c,d,a, 5,0x13,20)
+	ROUND2(a,b,c,d,10,0x14, 5)
+	ROUND2(d,a,b,c,15,0x15, 9)
+	ROUND2(c,d,a,b, 4,0x16,14)
+	ROUND2(b,c,d,a, 9,0x17,20)
+	ROUND2(a,b,c,d,14,0x18, 5)
+	ROUND2(d,a,b,c, 3,0x19, 9)
+	ROUND2(c,d,a,b, 8,0x1a,14)
+	ROUND2(b,c,d,a,13,0x1b,20)
+	ROUND2(a,b,c,d, 2,0x1c, 5)
+	ROUND2(d,a,b,c, 7,0x1d, 9)
+	ROUND2(c,d,a,b,12,0x1e,14)
+	ROUND2(b,c,d,a, 0,0x1f,20)
+
+	load(5)
+	VMOVAPD c, tmp
+
+	ROUND3(a,b,c,d, 8,0x20, 4)
+	ROUND3(d,a,b,c,11,0x21,11)
+	ROUND3(c,d,a,b,14,0x22,16)
+	ROUND3(b,c,d,a, 1,0x23,23)
+	ROUND3(a,b,c,d, 4,0x24, 4)
+	ROUND3(d,a,b,c, 7,0x25,11)
+	ROUND3(c,d,a,b,10,0x26,16)
+	ROUND3(b,c,d,a,13,0x27,23)
+	ROUND3(a,b,c,d, 0,0x28, 4)
+	ROUND3(d,a,b,c, 3,0x29,11)
+	ROUND3(c,d,a,b, 6,0x2a,16)
+	ROUND3(b,c,d,a, 9,0x2b,23)
+	ROUND3(a,b,c,d,12,0x2c, 4)
+	ROUND3(d,a,b,c,15,0x2d,11)
+	ROUND3(c,d,a,b, 2,0x2e,16)
+	ROUND3(b,c,d,a, 0,0x2f,23)
+
+	load(0)
+	VXORPS d, ones, tmp
+
+	ROUND4(a,b,c,d, 7,0x30, 6)
+	ROUND4(d,a,b,c,14,0x31,10)
+	ROUND4(c,d,a,b, 5,0x32,15)
+	ROUND4(b,c,d,a,12,0x33,21)
+	ROUND4(a,b,c,d, 3,0x34, 6)
+	ROUND4(d,a,b,c,10,0x35,10)
+	ROUND4(c,d,a,b, 1,0x36,15)
+	ROUND4(b,c,d,a, 8,0x37,21)
+	ROUND4(a,b,c,d,15,0x38, 6)
+	ROUND4(d,a,b,c, 6,0x39,10)
+	ROUND4(c,d,a,b,13,0x3a,15)
+	ROUND4(b,c,d,a, 4,0x3b,21)
+	ROUND4(a,b,c,d,11,0x3c, 6)
+	ROUND4(d,a,b,c, 2,0x3d,10)
+	ROUND4(c,d,a,b, 9,0x3e,15)
+	ROUND4(b,c,d,a, 0,0x3f,21)
+
+	VPADDD sa, a, a
+	VPADDD sb, b, b
+	VPADDD sc, c, c
+	VPADDD sd, d, d
+
+	LEAQ 64(base), base
+	SUBQ $64, count
+	JNE  loop
+
+	VMOVUPD a, (dig)
+	VMOVUPD b, 32(dig)
+	VMOVUPD c, 64(dig)
+	VMOVUPD d, 96(dig)
+
+	VZEROUPPER
+	RET

vendor/github.com/minio/md5-simd/block_amd64.go

@@ -0,0 +1,199 @@
+//+build !noasm,!appengine,gc
+
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+package md5simd
+
+import (
+	"fmt"
+	"math"
+	"sync"
+	"unsafe"
+
+	"github.com/klauspost/cpuid"
+)
+
+var hasAVX512 bool
+
+//go:noescape
+func block8(state *uint32, base uintptr, bufs *int32, cache *byte, n int)
+
+//go:noescape
+func block16(state *uint32, base uintptr, ptrs *int32, mask uint64, n int)
+
+// 8-way 4x uint32 digests in 4 ymm registers
+// (ymm0, ymm1, ymm2, ymm3)
+type digest8 struct {
+	v0, v1, v2, v3 [8]uint32
+}
+
+// Stack cache for 8x64 byte md5.BlockSize bytes.
+// Must be 32-byte aligned, so allocate 512+32 and
+// align upwards at runtime.
+type cache8 [512 + 32]byte
+
+// MD5 magic numbers for one lane of hashing; inflated
+// 8x below at init time.
+var md5consts = [64]uint32{
+	0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
+	0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
+	0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
+	0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
+	0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
+	0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
+	0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
+	0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
+	0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
+	0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
+	0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
+	0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
+	0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
+	0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
+	0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
+	0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
+}
+
+// inflate the consts 8-way for 8x md5 (256 bit ymm registers)
+var avx256md5consts = func(c []uint32) []uint32 {
+	inf := make([]uint32, 8*len(c))
+	for i := range c {
+		for j := 0; j < 8; j++ {
+			inf[(i*8)+j] = c[i]
+		}
+	}
+	return inf
+}(md5consts[:])
+
+// 16-way 4x uint32 digests in 4 zmm registers
+type digest16 struct {
+	v0, v1, v2, v3 [16]uint32
+}
+
+// inflate the consts 16-way for 16x md5 (512 bit zmm registers)
+var avx512md5consts = func(c []uint32) []uint32 {
+	inf := make([]uint32, 16*len(c))
+	for i := range c {
+		for j := 0; j < 16; j++ {
+			inf[(i*16)+j] = c[i]
+		}
+	}
+	return inf
+}(md5consts[:])
+
+func init() {
+	hasAVX512 = cpuid.CPU.AVX512F()
+}
+
+// Interface function to assembly code
+func (s *md5Server) blockMd5_x16(d *digest16, input [16][]byte, half bool) {
+	if hasAVX512 {
+		blockMd5_avx512(d, input, s.allBufs, &s.maskRounds16)
+	} else {
+		d8a, d8b := digest8{}, digest8{}
+		for i := range d8a.v0 {
+			j := i + 8
+			d8a.v0[i], d8a.v1[i], d8a.v2[i], d8a.v3[i] = d.v0[i], d.v1[i], d.v2[i], d.v3[i]
+			if !half {
+				d8b.v0[i], d8b.v1[i], d8b.v2[i], d8b.v3[i] = d.v0[j], d.v1[j], d.v2[j], d.v3[j]
+			}
+		}
+
+		i8 := [2][8][]byte{}
+		for i := range i8[0] {
+			i8[0][i], i8[1][i] = input[i], input[8+i]
+		}
+		if half {
+			blockMd5_avx2(&d8a, i8[0], s.allBufs, &s.maskRounds8a)
+		} else {
+			wg := sync.WaitGroup{}
+			wg.Add(2)
+			go func() { blockMd5_avx2(&d8a, i8[0], s.allBufs, &s.maskRounds8a); wg.Done() }()
+			go func() { blockMd5_avx2(&d8b, i8[1], s.allBufs, &s.maskRounds8b); wg.Done() }()
+			wg.Wait()
+		}
+
+		for i := range d8a.v0 {
+			j := i + 8
+			d.v0[i], d.v1[i], d.v2[i], d.v3[i] = d8a.v0[i], d8a.v1[i], d8a.v2[i], d8a.v3[i]
+			if !half {
+				d.v0[j], d.v1[j], d.v2[j], d.v3[j] = d8b.v0[i], d8b.v1[i], d8b.v2[i], d8b.v3[i]
+			}
+		}
+	}
+}
+
+// Interface function to AVX512 assembly code
+func blockMd5_avx512(s *digest16, input [16][]byte, base []byte, maskRounds *[16]maskRounds) {
+	baseMin := uint64(uintptr(unsafe.Pointer(&(base[0]))))
+	ptrs := [16]int32{}
+
+	for i := range ptrs {
+		if len(input[i]) > 0 {
+			if len(input[i]) > internalBlockSize {
+				panic(fmt.Sprintf("Sanity check fails for lane %d: maximum input length cannot exceed internalBlockSize", i))
+			}
+
+			off := uint64(uintptr(unsafe.Pointer(&(input[i][0])))) - baseMin
+			if off > math.MaxUint32 {
+				panic(fmt.Sprintf("invalid buffer sent with offset %x", off))
+			}
+			ptrs[i] = int32(off)
+		}
+	}
+
+	sdup := *s // create copy of initial states to receive intermediate updates
+
+	rounds := generateMaskAndRounds16(input, maskRounds)
+
+	for r := 0; r < rounds; r++ {
+		m := maskRounds[r]
+
+		block16(&sdup.v0[0], uintptr(baseMin), &ptrs[0], m.mask, int(64*m.rounds))
+
+		for j := 0; j < len(ptrs); j++ {
+			ptrs[j] += int32(64 * m.rounds) // update pointers for next round
+			if m.mask&(1<<j) != 0 {         // update digest if still masked as active
+				(*s).v0[j], (*s).v1[j], (*s).v2[j], (*s).v3[j] = sdup.v0[j], sdup.v1[j], sdup.v2[j], sdup.v3[j]
+			}
+		}
+	}
+}
+
+// Interface function to AVX2 assembly code
+func blockMd5_avx2(s *digest8, input [8][]byte, base []byte, maskRounds *[8]maskRounds) {
+	baseMin := uint64(uintptr(unsafe.Pointer(&(base[0])))) - 4
+	ptrs := [8]int32{}
+
+	for i := range ptrs {
+		if len(input[i]) > 0 {
+			if len(input[i]) > internalBlockSize {
+				panic(fmt.Sprintf("Sanity check fails for lane %d: maximum input length cannot exceed internalBlockSize", i))
+			}
+
+			off := uint64(uintptr(unsafe.Pointer(&(input[i][0])))) - baseMin
+			if off > math.MaxUint32 {
+				panic(fmt.Sprintf("invalid buffer sent with offset %x", off))
+			}
+			ptrs[i] = int32(off)
+		}
+	}
+
+	sdup := *s // create copy of initial states to receive intermediate updates
+
+	rounds := generateMaskAndRounds8(input, maskRounds)
+
+	for r := 0; r < rounds; r++ {
+		m := maskRounds[r]
+		var cache cache8 // stack storage for block8 tmp state
+		block8(&sdup.v0[0], uintptr(baseMin), &ptrs[0], &cache[0], int(64*m.rounds))
+
+		for j := 0; j < len(ptrs); j++ {
+			ptrs[j] += int32(64 * m.rounds) // update pointers for next round
+			if m.mask&(1<<j) != 0 {         // update digest if still masked as active
+				(*s).v0[j], (*s).v1[j], (*s).v2[j], (*s).v3[j] = sdup.v0[j], sdup.v1[j], sdup.v2[j], sdup.v3[j]
+			}
+		}
+	}
+}

vendor/github.com/minio/md5-simd/go.mod

@@ -0,0 +1,7 @@
+module github.com/minio/md5-simd
+
+go 1.14
+
+require (
+	github.com/klauspost/cpuid v1.2.3
+)

vendor/github.com/minio/md5-simd/go.sum

@@ -0,0 +1,2 @@
+github.com/klauspost/cpuid v1.2.3 h1:CCtW0xUnWGVINKvE/WWOYKdsPV6mawAtvQuSl8guwQs=
+github.com/klauspost/cpuid v1.2.3/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=

vendor/github.com/minio/md5-simd/md5-digest_amd64.go

@@ -0,0 +1,178 @@
+//+build !noasm,!appengine,gc
+
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+package md5simd
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"sync/atomic"
+)
+
+// md5Digest - Type for computing MD5 using either AVX2 or AVX512
+type md5Digest struct {
+	uid         uint64
+	blocksCh    chan blockInput
+	cycleServer chan uint64
+	x           [BlockSize]byte
+	nx          int
+	len         uint64
+	buffers     <-chan []byte
+}
+
+// NewHash - initialize instance for Md5 implementation.
+func (s *md5Server) NewHash() Hasher {
+	uid := atomic.AddUint64(&s.uidCounter, 1)
+	blockCh := make(chan blockInput, buffersPerLane)
+	s.newInput <- newClient{
+		uid:   uid,
+		input: blockCh,
+	}
+	return &md5Digest{
+		uid:         uid,
+		buffers:     s.buffers,
+		blocksCh:    blockCh,
+		cycleServer: s.cycle,
+	}
+}
+
+// Size - Return size of checksum
+func (d *md5Digest) Size() int { return Size }
+
+// BlockSize - Return blocksize of checksum
+func (d md5Digest) BlockSize() int { return BlockSize }
+
+func (d *md5Digest) Reset() {
+	if d.blocksCh == nil {
+		panic("reset after close")
+	}
+	d.nx = 0
+	d.len = 0
+	d.sendBlock(blockInput{uid: d.uid, reset: true}, false)
+}
+
+// write to digest
+func (d *md5Digest) Write(p []byte) (nn int, err error) {
+	if d.blocksCh == nil {
+		return 0, errors.New("md5Digest closed")
+	}
+
+	// break input into chunks of maximum internalBlockSize size
+	for {
+		l := len(p)
+		if l > internalBlockSize {
+			l = internalBlockSize
+		}
+		nnn, err := d.write(p[:l])
+		if err != nil {
+			return nn, err
+		}
+		nn += nnn
+		p = p[l:]
+
+		if len(p) == 0 {
+			break
+		}
+
+	}
+	return
+}
+
+func (d *md5Digest) write(p []byte) (nn int, err error) {
+
+	nn = len(p)
+	d.len += uint64(nn)
+	if d.nx > 0 {
+		n := copy(d.x[d.nx:], p)
+		d.nx += n
+		if d.nx == BlockSize {
+			// Create a copy of the overflow buffer in order to send it async over the channel
+			// (since we will modify the overflow buffer down below with any access beyond multiples of 64)
+			tmp := <-d.buffers
+			tmp = tmp[:BlockSize]
+			copy(tmp, d.x[:])
+			d.sendBlock(blockInput{uid: d.uid, msg: tmp}, len(p)-n < BlockSize)
+			d.nx = 0
+		}
+		p = p[n:]
+	}
+	if len(p) >= BlockSize {
+		n := len(p) &^ (BlockSize - 1)
+		buf := <-d.buffers
+		buf = buf[:n]
+		copy(buf, p)
+		d.sendBlock(blockInput{uid: d.uid, msg: buf}, len(p)-n < BlockSize)
+		p = p[n:]
+	}
+	if len(p) > 0 {
+		d.nx = copy(d.x[:], p)
+	}
+	return
+}
+
+func (d *md5Digest) Close() {
+	if d.blocksCh != nil {
+		close(d.blocksCh)
+		d.blocksCh = nil
+	}
+}
+
+// Sum - Return MD5 sum in bytes
+func (d *md5Digest) Sum(in []byte) (result []byte) {
+	if d.blocksCh == nil {
+		panic("sum after close")
+	}
+
+	trail := <-d.buffers
+	trail = append(trail[:0], d.x[:d.nx]...)
+
+	length := d.len
+	// Padding.  Add a 1 bit and 0 bits until 56 bytes mod 64.
+	var tmp [64]byte
+	tmp[0] = 0x80
+	if length%64 < 56 {
+		trail = append(trail, tmp[0:56-length%64]...)
+	} else {
+		trail = append(trail, tmp[0:64+56-length%64]...)
+	}
+
+	// Length in bits.
+	length <<= 3
+	binary.LittleEndian.PutUint64(tmp[:], length) // append length in bits
+
+	trail = append(trail, tmp[0:8]...)
+	if len(trail)%BlockSize != 0 {
+		panic(fmt.Errorf("internal error: sum block was not aligned. len=%d, nx=%d", len(trail), d.nx))
+	}
+	sumCh := make(chan sumResult, 1)
+	d.sendBlock(blockInput{uid: d.uid, msg: trail, sumCh: sumCh}, true)
+
+	sum := <-sumCh
+
+	return append(in, sum.digest[:]...)
+}
+
+// sendBlock will send a block for processing.
+// If cycle is true we will block on cycle, otherwise we will only block
+// if the block channel is full.
+func (d *md5Digest) sendBlock(bi blockInput, cycle bool) {
+	if cycle {
+		select {
+		case d.blocksCh <- bi:
+			d.cycleServer <- d.uid
+		}
+		return
+	}
+	// Only block on cycle if we filled the buffer
+	select {
+	case d.blocksCh <- bi:
+		return
+	default:
+		d.cycleServer <- d.uid
+		d.blocksCh <- bi
+	}
+}

vendor/github.com/minio/md5-simd/md5-server_amd64.go

@@ -0,0 +1,307 @@
+//+build !noasm,!appengine,gc
+
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+package md5simd
+
+import (
+	"encoding/binary"
+	"fmt"
+	"runtime"
+
+	"github.com/klauspost/cpuid"
+)
+
+// MD5 initialization constants
+const (
+	// Lanes is the number of concurrently calculated hashes.
+	Lanes = 16
+
+	init0 = 0x67452301
+	init1 = 0xefcdab89
+	init2 = 0x98badcfe
+	init3 = 0x10325476
+)
+
+// md5ServerUID - Does not start at 0 but next multiple of 16 so as to be able to
+// differentiate with default initialisation value of 0
+const md5ServerUID = Lanes
+
+const buffersPerLane = 3
+
+// Message to send across input channel
+type blockInput struct {
+	uid   uint64
+	msg   []byte
+	sumCh chan sumResult
+	reset bool
+}
+
+type sumResult struct {
+	digest [Size]byte
+}
+
+type lanesInfo [Lanes]blockInput
+
+// md5Server - Type to implement parallel handling of MD5 invocations
+type md5Server struct {
+	uidCounter   uint64
+	cycle        chan uint64           // client with uid has update.
+	newInput     chan newClient        // Add new client.
+	digests      map[uint64][Size]byte // Map of uids to (interim) digest results
+	maskRounds16 [16]maskRounds        // Pre-allocated static array for max 16 rounds
+	maskRounds8a [8]maskRounds         // Pre-allocated static array for max 8 rounds (1st AVX2 core)
+	maskRounds8b [8]maskRounds         // Pre-allocated static array for max 8 rounds (2nd AVX2 core)
+	allBufs      []byte                // Preallocated buffer.
+	buffers      chan []byte           // Preallocated buffers, sliced from allBufs.
+}
+
+// NewServer - Create new object for parallel processing handling
+func NewServer() Server {
+	if !cpuid.CPU.AVX2() {
+		return &fallbackServer{}
+	}
+	md5srv := &md5Server{}
+	md5srv.digests = make(map[uint64][Size]byte)
+	md5srv.newInput = make(chan newClient, Lanes)
+	md5srv.cycle = make(chan uint64, Lanes*10)
+	md5srv.uidCounter = md5ServerUID - 1
+	md5srv.allBufs = make([]byte, 32+buffersPerLane*Lanes*internalBlockSize)
+	md5srv.buffers = make(chan []byte, buffersPerLane*Lanes)
+	// Fill buffers.
+	for i := 0; i < buffersPerLane*Lanes; i++ {
+		s := 32 + i*internalBlockSize
+		md5srv.buffers <- md5srv.allBufs[s : s+internalBlockSize : s+internalBlockSize]
+	}
+
+	// Start a single thread for reading from the input channel
+	go md5srv.process(md5srv.newInput)
+	return md5srv
+}
+
+type newClient struct {
+	uid   uint64
+	input chan blockInput
+}
+
+// process - Sole handler for reading from the input channel.
+func (s *md5Server) process(newClients chan newClient) {
+	// To fill up as many lanes as possible:
+	//
+	// 1. Wait for a cycle id.
+	// 2. If not already in a lane, add, otherwise leave on channel
+	// 3. Start timer
+	// 4. Check if lanes is full, if so, goto 10 (process).
+	// 5. If timeout, goto 10.
+	// 6. Wait for new id (goto 2)  or timeout (goto 10).
+	// 10. Process.
+	// 11. Check all input if there is already input, if so add to lanes.
+	// 12. Goto 1
+
+	// lanes contains the lanes.
+	var lanes lanesInfo
+	// lanesFilled contains the number of filled lanes for current cycle.
+	var lanesFilled int
+	// clients contains active clients
+	var clients = make(map[uint64]chan blockInput, Lanes)
+
+	addToLane := func(uid uint64) {
+		cl, ok := clients[uid]
+		if !ok {
+			// Unknown client. Maybe it was already removed.
+			return
+		}
+		// Check if we already have it.
+		for _, lane := range lanes[:lanesFilled] {
+			if lane.uid == uid {
+				return
+			}
+		}
+		// Continue until we get a block or there is nothing on channel
+		for {
+			select {
+			case block, ok := <-cl:
+				if !ok {
+					// Client disconnected
+					delete(clients, block.uid)
+					return
+				}
+				if block.uid != uid {
+					panic(fmt.Errorf("uid mismatch, %d (block) != %d (client)", block.uid, uid))
+				}
+				// If reset message, reset and we're done
+				if block.reset {
+					delete(s.digests, uid)
+					continue
+				}
+
+				// If requesting sum, we will need to maintain state.
+				if block.sumCh != nil {
+					var dig digest
+					d, ok := s.digests[uid]
+					if ok {
+						dig.s[0] = binary.LittleEndian.Uint32(d[0:4])
+						dig.s[1] = binary.LittleEndian.Uint32(d[4:8])
+						dig.s[2] = binary.LittleEndian.Uint32(d[8:12])
+						dig.s[3] = binary.LittleEndian.Uint32(d[12:16])
+					} else {
+						dig.s[0], dig.s[1], dig.s[2], dig.s[3] = init0, init1, init2, init3
+					}
+
+					sum := sumResult{}
+					// Add end block to current digest.
+					blockGeneric(&dig, block.msg)
+
+					binary.LittleEndian.PutUint32(sum.digest[0:], dig.s[0])
+					binary.LittleEndian.PutUint32(sum.digest[4:], dig.s[1])
+					binary.LittleEndian.PutUint32(sum.digest[8:], dig.s[2])
+					binary.LittleEndian.PutUint32(sum.digest[12:], dig.s[3])
+					block.sumCh <- sum
+					if block.msg != nil {
+						s.buffers <- block.msg
+					}
+					continue
+				}
+				if len(block.msg) == 0 {
+					continue
+				}
+				lanes[lanesFilled] = block
+				lanesFilled++
+				return
+			default:
+				return
+			}
+		}
+	}
+	addNewClient := func(cl newClient) {
+		if _, ok := clients[cl.uid]; ok {
+			panic("internal error: duplicate client registration")
+		}
+		clients[cl.uid] = cl.input
+	}
+
+	allLanesFilled := func() bool {
+		return lanesFilled == Lanes || lanesFilled >= len(clients)
+	}
+
+	for {
+		// Step 1.
+		for lanesFilled == 0 {
+			select {
+			case cl, ok := <-newClients:
+				if !ok {
+					return
+				}
+				addNewClient(cl)
+				// Check if it already sent a payload.
+				addToLane(cl.uid)
+				continue
+			case uid := <-s.cycle:
+				addToLane(uid)
+			}
+		}
+
+	fillLanes:
+		for !allLanesFilled() {
+			select {
+			case cl, ok := <-newClients:
+				if !ok {
+					return
+				}
+				addNewClient(cl)
+
+			case uid := <-s.cycle:
+				addToLane(uid)
+			default:
+				// Nothing more queued...
+				break fillLanes
+			}
+		}
+
+		// If we did not fill all lanes, check if there is more waiting
+		if !allLanesFilled() {
+			runtime.Gosched()
+			for uid := range clients {
+				addToLane(uid)
+				if allLanesFilled() {
+					break
+				}
+			}
+		}
+		if false {
+			if !allLanesFilled() {
+				fmt.Println("Not all lanes filled", lanesFilled, "of", len(clients))
+				//pprof.Lookup("goroutine").WriteTo(os.Stdout, 1)
+			} else if true {
+				fmt.Println("all lanes filled")
+			}
+		}
+		// Process the lanes we could collect
+		s.blocks(lanes[:lanesFilled])
+
+		// Clear lanes...
+		lanesFilled = 0
+		// Add all current queued
+		for uid := range clients {
+			addToLane(uid)
+			if allLanesFilled() {
+				break
+			}
+		}
+	}
+}
+
+func (s *md5Server) Close() {
+	if s.newInput != nil {
+		close(s.newInput)
+		s.newInput = nil
+	}
+}
+
+// Invoke assembly and send results back
+func (s *md5Server) blocks(lanes []blockInput) {
+	inputs := [16][]byte{}
+	for i := range lanes {
+		inputs[i] = lanes[i].msg
+	}
+
+	// Collect active digests...
+	state := s.getDigests(lanes)
+	// Process all lanes...
+	s.blockMd5_x16(&state, inputs, len(lanes) <= 8)
+
+	for i, lane := range lanes {
+		uid := lane.uid
+		dig := [Size]byte{}
+		binary.LittleEndian.PutUint32(dig[0:], state.v0[i])
+		binary.LittleEndian.PutUint32(dig[4:], state.v1[i])
+		binary.LittleEndian.PutUint32(dig[8:], state.v2[i])
+		binary.LittleEndian.PutUint32(dig[12:], state.v3[i])
+
+		s.digests[uid] = dig
+		if lane.msg != nil {
+			s.buffers <- lane.msg
+		}
+		lanes[i] = blockInput{}
+	}
+}
+
+func (s *md5Server) getDigests(lanes []blockInput) (d digest16) {
+	for i, lane := range lanes {
+		a, ok := s.digests[lane.uid]
+		if ok {
+			d.v0[i] = binary.LittleEndian.Uint32(a[0:4])
+			d.v1[i] = binary.LittleEndian.Uint32(a[4:8])
+			d.v2[i] = binary.LittleEndian.Uint32(a[8:12])
+			d.v3[i] = binary.LittleEndian.Uint32(a[12:16])
+		} else {
+			d.v0[i] = init0
+			d.v1[i] = init1
+			d.v2[i] = init2
+			d.v3[i] = init3
+		}
+	}
+	return
+}

vendor/github.com/minio/md5-simd/md5-server_fallback.go

@@ -0,0 +1,12 @@
+//+build !amd64 appengine !gc noasm
+
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+package md5simd
+
+// NewServer - Create new object for parallel processing handling
+func NewServer() *fallbackServer {
+	return &fallbackServer{}
+}

vendor/github.com/minio/md5-simd/md5-util_amd64.go

@@ -0,0 +1,70 @@
+// Copyright (c) 2020 MinIO Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+package md5simd
+
+import (
+	"sort"
+)
+
+// Helper struct for sorting blocks based on length
+type lane struct {
+	len uint
+	pos uint
+}
+
+// Helper struct for generating number of rounds in combination with mask for valid lanes
+type maskRounds struct {
+	mask   uint64
+	rounds uint64
+}
+
+func generateMaskAndRounds8(input [8][]byte, mr *[8]maskRounds) (rounds int) {
+	// Sort on blocks length small to large
+	var sorted [8]lane
+	for c, inpt := range input {
+		sorted[c] = lane{uint(len(inpt)), uint(c)}
+	}
+	sort.Slice(sorted[:], func(i, j int) bool { return sorted[i].len < sorted[j].len })
+
+	// Create mask array including 'rounds' (of processing blocks of 64 bytes) between masks
+	m, round := uint64(0xff), uint64(0)
+
+	for _, s := range sorted {
+		if s.len > 0 {
+			if uint64(s.len)>>6 > round {
+				mr[rounds] = maskRounds{m, (uint64(s.len) >> 6) - round}
+				rounds++
+			}
+			round = uint64(s.len) >> 6
+		}
+		m = m & ^(1 << uint(s.pos))
+	}
+	return
+}
+
+func generateMaskAndRounds16(input [16][]byte, mr *[16]maskRounds) (rounds int) {
+
+	// Sort on blocks length small to large
+	var sorted [16]lane
+	for c, inpt := range input {
+		sorted[c] = lane{uint(len(inpt)), uint(c)}
+	}
+	sort.Slice(sorted[:], func(i, j int) bool { return sorted[i].len < sorted[j].len })
+
+	// Create mask array including 'rounds' (of processing blocks of 64 bytes) between masks
+	m, round := uint64(0xffff), uint64(0)
+
+	for _, s := range sorted {
+		if s.len > 0 {
+			if uint64(s.len)>>6 > round {
+				mr[rounds] = maskRounds{m, (uint64(s.len) >> 6) - round}
+				rounds++
+			}
+			round = uint64(s.len) >> 6
+		}
+		m = m & ^(1 << uint(s.pos))
+	}
+	return
+}

vendor/github.com/minio/md5-simd/md5.go

@@ -0,0 +1,57 @@
+package md5simd
+
+import (
+	"crypto/md5"
+	"hash"
+	"sync"
+)
+
+const (
+	// The blocksize of MD5 in bytes.
+	BlockSize = 64
+
+	// The size of an MD5 checksum in bytes.
+	Size = 16
+
+	// internalBlockSize is the internal block size.
+	internalBlockSize = 32 << 10
+)
+
+type Server interface {
+	NewHash() Hasher
+	Close()
+}
+
+type Hasher interface {
+	hash.Hash
+	Close()
+}
+
+// md5Wrapper is a wrapper around the builtin hasher.
+type md5Wrapper struct {
+	hash.Hash
+}
+
+var md5Pool = sync.Pool{New: func() interface{} {
+	return md5.New()
+}}
+
+// fallbackServer - Fallback when no assembly is available.
+type fallbackServer struct {
+}
+
+// NewHash -- return regular Golang md5 hashing from crypto
+func (s *fallbackServer) NewHash() Hasher {
+	return &md5Wrapper{Hash: md5Pool.New().(hash.Hash)}
+}
+
+func (s *fallbackServer) Close() {
+}
+
+func (m *md5Wrapper) Close() {
+	if m.Hash != nil {
+		m.Reset()
+		md5Pool.Put(m.Hash)
+		m.Hash = nil
+	}
+}

vendor/github.com/minio/minio-go/v7/.gitignore

@@ -0,0 +1,4 @@
+*~
+*.test
+validator
+golangci-lint

vendor/github.com/minio/minio-go/v7/.golangci.yml

@@ -0,0 +1,16 @@
+linters-settings:
+  misspell:
+    locale: US
+
+linters:
+  disable-all: true
+  enable:
+    - typecheck
+    - goimports
+    - misspell
+    - govet
+    - golint
+    - ineffassign
+    - gosimple
+    - deadcode
+    - structcheck

vendor/github.com/minio/minio-go/v7/CNAME

@@ -0,0 +1 @@
+minio-go.min.io

vendor/github.com/minio/minio-go/v7/CONTRIBUTING.md

@@ -0,0 +1,23 @@
+
+###  Developer Guidelines
+
+``minio-go`` welcomes your contribution. To make the process as seamless as possible, we ask for the following:
+
+* Go ahead and fork the project and make your changes. We encourage pull requests to discuss code changes.
+    - Fork it
+    - Create your feature branch (git checkout -b my-new-feature)
+    - Commit your changes (git commit -am 'Add some feature')
+    - Push to the branch (git push origin my-new-feature)
+    - Create new Pull Request
+
+* When you're ready to create a pull request, be sure to:
+    - Have test cases for the new code. If you have questions about how to do it, please ask in your pull request.
+    - Run `go fmt`
+    - Squash your commits into a single commit. `git rebase -i`. It's okay to force update your pull request.
+    - Make sure `go test -race ./...` and `go build` completes.
+      NOTE: go test runs functional tests and requires you to have a AWS S3 account. Set them as environment variables
+      ``ACCESS_KEY`` and ``SECRET_KEY``. To run shorter version of the tests please use ``go test -short -race ./...``
+
+* Read [Effective Go](https://github.com/golang/go/wiki/CodeReviewComments) article from Golang project
+    - `minio-go` project is strictly conformant with Golang style
+    - if you happen to observe offending code, please feel free to send a pull request

vendor/github.com/minio/minio-go/v7/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   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/minio/minio-go/v7/MAINTAINERS.md

@@ -0,0 +1,35 @@
+# For maintainers only
+
+## Responsibilities
+
+Please go through this link [Maintainer Responsibility](https://gist.github.com/abperiasamy/f4d9b31d3186bbd26522)
+
+### Making new releases
+Tag and sign your release commit, additionally this step requires you to have access to MinIO's trusted private key.
+```sh
+$ export GNUPGHOME=/media/${USER}/minio/trusted
+$ git tag -s 4.0.0
+$ git push
+$ git push --tags
+```
+
+### Update version
+Once release has been made update `libraryVersion` constant in `api.go` to next to be released version.
+
+```sh
+$ grep libraryVersion api.go
+      libraryVersion = "4.0.1"
+```
+
+Commit your changes
+```
+$ git commit -a -m "Update version for next release" --author "MinIO Trusted <trusted@min.io>"
+```
+
+### Announce
+Announce new release by adding release notes at https://github.com/minio/minio-go/releases from `trusted@min.io` account. Release notes requires two sections `highlights` and `changelog`. Highlights is a bulleted list of salient features in this release and Changelog contains list of all commits since the last release.
+
+To generate `changelog`
+```sh
+$ git log --no-color --pretty=format:'-%d %s (%cr) <%an>' <last_release_tag>..<latest_release_tag>
+```

vendor/github.com/minio/minio-go/v7/Makefile

@@ -0,0 +1,31 @@
+GOPATH := $(shell go env GOPATH)
+
+all: checks
+
+.PHONY: examples docs
+
+checks: lint vet test examples functional-test
+
+lint:
+	@mkdir -p ${GOPATH}/bin
+	@which golangci-lint 1>/dev/null || (echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.27.0)
+	@echo "Running $@ check"
+	@GO111MODULE=on ${GOPATH}/bin/golangci-lint cache clean
+	@GO111MODULE=on ${GOPATH}/bin/golangci-lint run --timeout=5m --config ./.golangci.yml
+
+vet:
+	@GO111MODULE=on go vet ./...
+
+test:
+	@GO111MODULE=on SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minio SECRET_KEY=minio123 ENABLE_HTTPS=1 MINT_MODE=full go test -race -v ./...
+
+examples:
+	@mkdir -p /tmp/examples && for i in $(echo examples/s3/*); do go build -o /tmp/examples/$(basename ${i:0:-3}) ${i}; done
+
+functional-test:
+	@GO111MODULE=on SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minio SECRET_KEY=minio123 ENABLE_HTTPS=1 MINT_MODE=full go run functional_tests.go
+
+clean:
+	@echo "Cleaning up all the generated files"
+	@find . -name '*.test' | xargs rm -fv
+	@find . -name '*~' | xargs rm -fv

vendor/github.com/minio/minio-go/v7/NOTICE

@@ -0,0 +1,9 @@
+MinIO Cloud Storage, (C) 2014-2020 MinIO, Inc.
+
+This product includes software developed at MinIO, Inc.
+(https://min.io/).
+
+The MinIO project contains unmodified/modified subcomponents too with
+separate copyright notices and license terms. Your use of the source
+code for these subcomponents is subject to the terms and conditions
+of Apache License Version 2.0

vendor/github.com/minio/minio-go/v7/README.md

@@ -0,0 +1,252 @@
+# MinIO Go Client SDK for Amazon S3 Compatible Cloud Storage [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![Sourcegraph](https://sourcegraph.com/github.com/minio/minio-go/-/badge.svg)](https://sourcegraph.com/github.com/minio/minio-go?badge) [![Apache V2 License](http://img.shields.io/badge/license-Apache%20V2-blue.svg)](https://github.com/minio/minio-go/blob/master/LICENSE)
+
+The MinIO Go Client SDK provides simple APIs to access any Amazon S3 compatible object storage.
+
+This quickstart guide will show you how to install the MinIO client SDK, connect to MinIO, and provide a walkthrough for a simple file uploader. For a complete list of APIs and examples, please take a look at the [Go Client API Reference](https://docs.min.io/docs/golang-client-api-reference).
+
+This document assumes that you have a working [Go development environment](https://golang.org/doc/install).
+
+## Download from Github
+```sh
+GO111MODULE=on go get github.com/minio/minio-go/v7
+```
+
+## Initialize MinIO Client
+MinIO client requires the following four parameters specified to connect to an Amazon S3 compatible object storage.
+
+| Parameter  | Description|
+| :---         |     :---     |
+| endpoint   | URL to object storage service.   |
+| _minio.Options_ | All the options such as credentials, custom transport etc. |
+
+
+```go
+package main
+
+import (
+	"log"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+)
+
+func main() {
+	endpoint := "play.min.io"
+	accessKeyID := "Q3AM3UQ867SPQQA43P2F"
+	secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
+	useSSL := true
+
+	// Initialize minio client object.
+	minioClient, err := minio.New(endpoint, &minio.Options{
+		Creds:  credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
+		Secure: useSSL,
+	})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	log.Printf("%#v\n", minioClient) // minioClient is now setup
+}
+```
+
+## Quick Start Example - File Uploader
+This example program connects to an object storage server, creates a bucket and uploads a file to the bucket.
+
+We will use the MinIO server running at [https://play.min.io](https://play.min.io) in this example. Feel free to use this service for testing and development. Access credentials shown in this example are open to the public.
+
+### FileUploader.go
+```go
+package main
+
+import (
+	"context"
+	"log"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/minio/minio-go/v7/pkg/credentials"
+)
+
+func main() {
+	endpoint := "play.min.io"
+	accessKeyID := "Q3AM3UQ867SPQQA43P2F"
+	secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
+	useSSL := true
+
+	// Initialize minio client object.
+	minioClient, err := minio.New(endpoint, &minio.Options{
+		Creds:  credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
+		Secure: useSSL,
+	})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	// Make a new bucket called mymusic.
+	bucketName := "mymusic"
+	location := "us-east-1"
+
+	err = minioClient.MakeBucket(context.Background(), bucketName, minio.MakeBucketOptions{Region: location})
+	if err != nil {
+		// Check to see if we already own this bucket (which happens if you run this twice)
+		exists, errBucketExists := minioClient.BucketExists(bucketName)
+		if errBucketExists == nil && exists {
+			log.Printf("We already own %s\n", bucketName)
+		} else {
+			log.Fatalln(err)
+		}
+	} else {
+		log.Printf("Successfully created %s\n", bucketName)
+	}
+
+	// Upload the zip file
+	objectName := "golden-oldies.zip"
+	filePath := "/tmp/golden-oldies.zip"
+	contentType := "application/zip"
+
+	// Upload the zip file with FPutObject
+	n, err := minioClient.FPutObject(context.Background(), bucketName, objectName, filePath, minio.PutObjectOptions{ContentType: contentType})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	log.Printf("Successfully uploaded %s of size %d\n", objectName, n)
+}
+```
+
+### Run FileUploader
+```sh
+go run file-uploader.go
+2016/08/13 17:03:28 Successfully created mymusic
+2016/08/13 17:03:40 Successfully uploaded golden-oldies.zip of size 16253413
+
+mc ls play/mymusic/
+[2016-05-27 16:02:16 PDT]  17MiB golden-oldies.zip
+```
+
+## API Reference
+The full API Reference is available here.
+
+* [Complete API Reference](https://docs.min.io/docs/golang-client-api-reference)
+
+### API Reference : Bucket Operations
+* [`MakeBucket`](https://docs.min.io/docs/golang-client-api-reference#MakeBucket)
+* [`ListBuckets`](https://docs.min.io/docs/golang-client-api-reference#ListBuckets)
+* [`BucketExists`](https://docs.min.io/docs/golang-client-api-reference#BucketExists)
+* [`RemoveBucket`](https://docs.min.io/docs/golang-client-api-reference#RemoveBucket)
+* [`ListObjects`](https://docs.min.io/docs/golang-client-api-reference#ListObjects)
+* [`ListObjectsV2`](https://docs.min.io/docs/golang-client-api-reference#ListObjectsV2)
+* [`ListIncompleteUploads`](https://docs.min.io/docs/golang-client-api-reference#ListIncompleteUploads)
+
+### API Reference : Bucket policy Operations
+* [`SetBucketPolicy`](https://docs.min.io/docs/golang-client-api-reference#SetBucketPolicy)
+* [`GetBucketPolicy`](https://docs.min.io/docs/golang-client-api-reference#GetBucketPolicy)
+
+### API Reference : Bucket notification Operations
+* [`SetBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#SetBucketNotification)
+* [`GetBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#GetBucketNotification)
+* [`RemoveAllBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#RemoveAllBucketNotification)
+* [`ListenBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#ListenBucketNotification) (MinIO Extension)
+* [`ListenNotification`](https://docs.min.io/docs/golang-client-api-reference#ListenNotification) (MinIO Extension)
+
+### API Reference : File Object Operations
+* [`FPutObject`](https://docs.min.io/docs/golang-client-api-reference#FPutObject)
+* [`FGetObject`](https://docs.min.io/docs/golang-client-api-reference#FGetObject)
+
+### API Reference : Object Operations
+* [`GetObject`](https://docs.min.io/docs/golang-client-api-reference#GetObject)
+* [`PutObject`](https://docs.min.io/docs/golang-client-api-reference#PutObject)
+* [`PutObjectStreaming`](https://docs.min.io/docs/golang-client-api-reference#PutObjectStreaming)
+* [`StatObject`](https://docs.min.io/docs/golang-client-api-reference#StatObject)
+* [`CopyObject`](https://docs.min.io/docs/golang-client-api-reference#CopyObject)
+* [`RemoveObject`](https://docs.min.io/docs/golang-client-api-reference#RemoveObject)
+* [`RemoveObjects`](https://docs.min.io/docs/golang-client-api-reference#RemoveObjects)
+* [`RemoveIncompleteUpload`](https://docs.min.io/docs/golang-client-api-reference#RemoveIncompleteUpload)
+* [`SelectObjectContent`](https://docs.min.io/docs/golang-client-api-reference#SelectObjectContent)
+
+
+### API Reference : Presigned Operations
+* [`PresignedGetObject`](https://docs.min.io/docs/golang-client-api-reference#PresignedGetObject)
+* [`PresignedPutObject`](https://docs.min.io/docs/golang-client-api-reference#PresignedPutObject)
+* [`PresignedHeadObject`](https://docs.min.io/docs/golang-client-api-reference#PresignedHeadObject)
+* [`PresignedPostPolicy`](https://docs.min.io/docs/golang-client-api-reference#PresignedPostPolicy)
+
+### API Reference : Client custom settings
+* [`SetAppInfo`](http://docs.min.io/docs/golang-client-api-reference#SetAppInfo)
+* [`SetCustomTransport`](http://docs.min.io/docs/golang-client-api-reference#SetCustomTransport)
+* [`TraceOn`](http://docs.min.io/docs/golang-client-api-reference#TraceOn)
+* [`TraceOff`](http://docs.min.io/docs/golang-client-api-reference#TraceOff)
+
+## Full Examples
+
+### Full Examples : Bucket Operations
+* [makebucket.go](https://github.com/minio/minio-go/blob/master/examples/s3/makebucket.go)
+* [listbuckets.go](https://github.com/minio/minio-go/blob/master/examples/s3/listbuckets.go)
+* [bucketexists.go](https://github.com/minio/minio-go/blob/master/examples/s3/bucketexists.go)
+* [removebucket.go](https://github.com/minio/minio-go/blob/master/examples/s3/removebucket.go)
+* [listobjects.go](https://github.com/minio/minio-go/blob/master/examples/s3/listobjects.go)
+* [listobjectsV2.go](https://github.com/minio/minio-go/blob/master/examples/s3/listobjectsV2.go)
+* [listincompleteuploads.go](https://github.com/minio/minio-go/blob/master/examples/s3/listincompleteuploads.go)
+
+### Full Examples : Bucket policy Operations
+* [setbucketpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketpolicy.go)
+* [getbucketpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketpolicy.go)
+* [listbucketpolicies.go](https://github.com/minio/minio-go/blob/master/examples/s3/listbucketpolicies.go)
+
+### Full Examples : Bucket lifecycle Operations
+* [setbucketlifecycle.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketlifecycle.go)
+* [getbucketlifecycle.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketlifecycle.go)
+
+### Full Examples : Bucket encryption Operations
+* [setbucketencryption.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketencryption.go)
+* [getbucketencryption.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketencryption.go)
+* [deletebucketencryption.go](https://github.com/minio/minio-go/blob/master/examples/s3/deletebucketencryption.go)
+
+### Full Examples : Bucket replication Operations
+* [setbucketreplication.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketreplication.go)
+* [getbucketreplication.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketreplication.go)
+* [removebucketreplication.go](https://github.com/minio/minio-go/blob/master/examples/s3/removebucketreplication.go)
+
+### Full Examples : Bucket notification Operations
+* [setbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketnotification.go)
+* [getbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketnotification.go)
+* [removeallbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeallbucketnotification.go)
+* [listenbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/minio/listenbucketnotification.go) (MinIO Extension)
+* [listennotification.go](https://github.com/minio/minio-go/blob/master/examples/minio/listen-notification.go) (MinIO Extension)
+
+### Full Examples : File Object Operations
+* [fputobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputobject.go)
+* [fgetobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/fgetobject.go)
+* [fputobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputobject-context.go)
+* [fgetobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/fgetobject-context.go)
+
+### Full Examples : Object Operations
+* [putobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/putobject.go)
+* [getobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/getobject.go)
+* [putobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/putobject-context.go)
+* [getobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/getobject-context.go)
+* [statobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/statobject.go)
+* [copyobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/copyobject.go)
+* [removeobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeobject.go)
+* [removeincompleteupload.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeincompleteupload.go)
+* [removeobjects.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeobjects.go)
+
+### Full Examples : Encrypted Object Operations
+* [put-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/put-encrypted-object.go)
+* [get-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/get-encrypted-object.go)
+* [fput-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputencrypted-object.go)
+
+### Full Examples : Presigned Operations
+* [presignedgetobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedgetobject.go)
+* [presignedputobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedputobject.go)
+* [presignedheadobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedheadobject.go)
+* [presignedpostpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedpostpolicy.go)
+
+## Explore Further
+* [Complete Documentation](https://docs.min.io)
+* [MinIO Go Client SDK API Reference](https://docs.min.io/docs/golang-client-api-reference)
+
+## Contribute
+[Contributors Guide](https://github.com/minio/minio-go/blob/master/CONTRIBUTING.md)
+
+## License
+This SDK is distributed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0), see [LICENSE](./LICENSE) and [NOTICE](./NOTICE) for more information.

vendor/github.com/minio/minio-go/v7/README_zh_CN.md

@@ -0,0 +1,236 @@
+# 适用于与Amazon S3兼容云存储的MinIO Go SDK [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![Sourcegraph](https://sourcegraph.com/github.com/minio/minio-go/-/badge.svg)](https://sourcegraph.com/github.com/minio/minio-go?badge)
+
+MinIO Go Client SDK提供了简单的API来访问任何与Amazon S3兼容的对象存储服务。
+
+**支持的云存储:**
+
+- AWS Signature Version 4
+   - Amazon S3
+   - MinIO
+
+- AWS Signature Version 2
+   - Google Cloud Storage (兼容模式)
+   - Openstack Swift + Swift3 middleware
+   - Ceph Object Gateway
+   - Riak CS
+
+本文我们将学习如何安装MinIO client SDK，连接到MinIO，并提供一下文件上传的示例。对于完整的API以及示例，请参考[Go Client API Reference](https://docs.min.io/docs/golang-client-api-reference)。
+
+本文假设你已经有 [Go开发环境](https://golang.org/doc/install)。
+
+## 从Github下载
+```sh
+go get -u github.com/minio/minio-go
+```
+
+## 初始化MinIO Client
+MinIO client需要以下4个参数来连接与Amazon S3兼容的对象存储。
+
+| 参数  | 描述|
+| :---         |     :---     |
+| endpoint   | 对象存储服务的URL   |
+| accessKeyID | Access key是唯一标识你的账户的用户ID。 |
+| secretAccessKey | Secret key是你账户的密码。 |
+| secure | true代表使用HTTPS |
+
+
+```go
+package main
+
+import (
+	"github.com/minio/minio-go/v7"
+	"log"
+)
+
+func main() {
+	endpoint := "play.min.io"
+	accessKeyID := "Q3AM3UQ867SPQQA43P2F"
+	secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
+	useSSL := true
+
+	// 初使化 minio client对象。
+	minioClient, err := minio.New(endpoint, accessKeyID, secretAccessKey, useSSL)
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	log.Printf("%#v\n", minioClient) // minioClient初使化成功
+}
+```
+
+## 示例-文件上传
+本示例连接到一个对象存储服务，创建一个存储桶并上传一个文件到存储桶中。
+
+我们在本示例中使用运行在 [https://play.min.io](https://play.min.io) 上的MinIO服务，你可以用这个服务来开发和测试。示例中的访问凭据是公开的。
+
+### FileUploader.go
+```go
+package main
+
+import (
+	"github.com/minio/minio-go/v7"
+	"log"
+)
+
+func main() {
+	endpoint := "play.min.io"
+	accessKeyID := "Q3AM3UQ867SPQQA43P2F"
+	secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
+	useSSL := true
+
+	// 初使化minio client对象。
+	minioClient, err := minio.New(endpoint, accessKeyID, secretAccessKey, useSSL)
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	// 创建一个叫mymusic的存储桶。
+	bucketName := "mymusic"
+	location := "us-east-1"
+
+	err = minioClient.MakeBucket(bucketName, location)
+	if err != nil {
+		// 检查存储桶是否已经存在。
+		exists, err := minioClient.BucketExists(bucketName)
+		if err == nil && exists {
+			log.Printf("We already own %s\n", bucketName)
+		} else {
+			log.Fatalln(err)
+		}
+	}
+	log.Printf("Successfully created %s\n", bucketName)
+
+	// 上传一个zip文件。
+	objectName := "golden-oldies.zip"
+	filePath := "/tmp/golden-oldies.zip"
+	contentType := "application/zip"
+
+	// 使用FPutObject上传一个zip文件。
+	n, err := minioClient.FPutObject(bucketName, objectName, filePath, minio.PutObjectOptions{ContentType:contentType})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	log.Printf("Successfully uploaded %s of size %d\n", objectName, n)
+}
+```
+
+### 运行FileUploader
+```sh
+go run file-uploader.go
+2016/08/13 17:03:28 Successfully created mymusic
+2016/08/13 17:03:40 Successfully uploaded golden-oldies.zip of size 16253413
+
+mc ls play/mymusic/
+[2016-05-27 16:02:16 PDT]  17MiB golden-oldies.zip
+```
+
+## API文档
+完整的API文档在这里。
+* [完整API文档](https://docs.min.io/docs/golang-client-api-reference)
+
+### API文档 : 操作存储桶
+* [`MakeBucket`](https://docs.min.io/docs/golang-client-api-reference#MakeBucket)
+* [`ListBuckets`](https://docs.min.io/docs/golang-client-api-reference#ListBuckets)
+* [`BucketExists`](https://docs.min.io/docs/golang-client-api-reference#BucketExists)
+* [`RemoveBucket`](https://docs.min.io/docs/golang-client-api-reference#RemoveBucket)
+* [`ListObjects`](https://docs.min.io/docs/golang-client-api-reference#ListObjects)
+* [`ListObjectsV2`](https://docs.min.io/docs/golang-client-api-reference#ListObjectsV2)
+* [`ListIncompleteUploads`](https://docs.min.io/docs/golang-client-api-reference#ListIncompleteUploads)
+
+### API文档 : 存储桶策略
+* [`SetBucketPolicy`](https://docs.min.io/docs/golang-client-api-reference#SetBucketPolicy)
+* [`GetBucketPolicy`](https://docs.min.io/docs/golang-client-api-reference#GetBucketPolicy)
+
+### API文档 : 存储桶通知
+* [`SetBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#SetBucketNotification)
+* [`GetBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#GetBucketNotification)
+* [`RemoveAllBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#RemoveAllBucketNotification)
+* [`ListenBucketNotification`](https://docs.min.io/docs/golang-client-api-reference#ListenBucketNotification) (MinIO Extension)
+
+### API文档 : 操作文件对象
+* [`FPutObject`](https://docs.min.io/docs/golang-client-api-reference#FPutObject)
+* [`FGetObject`](https://docs.min.io/docs/golang-client-api-reference#FPutObject)
+
+### API文档 : 操作对象
+* [`GetObject`](https://docs.min.io/docs/golang-client-api-reference#GetObject)
+* [`PutObject`](https://docs.min.io/docs/golang-client-api-reference#PutObject)
+* [`PutObjectStreaming`](https://docs.min.io/docs/golang-client-api-reference#PutObjectStreaming)
+* [`StatObject`](https://docs.min.io/docs/golang-client-api-reference#StatObject)
+* [`CopyObject`](https://docs.min.io/docs/golang-client-api-reference#CopyObject)
+* [`RemoveObject`](https://docs.min.io/docs/golang-client-api-reference#RemoveObject)
+* [`RemoveObjects`](https://docs.min.io/docs/golang-client-api-reference#RemoveObjects)
+* [`RemoveIncompleteUpload`](https://docs.min.io/docs/golang-client-api-reference#RemoveIncompleteUpload)
+
+### API文档: 操作加密对象
+* [`GetEncryptedObject`](https://docs.min.io/docs/golang-client-api-reference#GetEncryptedObject)
+* [`PutEncryptedObject`](https://docs.min.io/docs/golang-client-api-reference#PutEncryptedObject)
+
+### API文档 : Presigned操作
+* [`PresignedGetObject`](https://docs.min.io/docs/golang-client-api-reference#PresignedGetObject)
+* [`PresignedPutObject`](https://docs.min.io/docs/golang-client-api-reference#PresignedPutObject)
+* [`PresignedHeadObject`](https://docs.min.io/docs/golang-client-api-reference#PresignedHeadObject)
+* [`PresignedPostPolicy`](https://docs.min.io/docs/golang-client-api-reference#PresignedPostPolicy)
+
+### API文档 : 客户端自定义设置
+* [`SetAppInfo`](http://docs.min.io/docs/golang-client-api-reference#SetAppInfo)
+* [`SetCustomTransport`](http://docs.min.io/docs/golang-client-api-reference#SetCustomTransport)
+* [`TraceOn`](http://docs.min.io/docs/golang-client-api-reference#TraceOn)
+* [`TraceOff`](http://docs.min.io/docs/golang-client-api-reference#TraceOff)
+
+## 完整示例
+
+### 完整示例 : 操作存储桶
+* [makebucket.go](https://github.com/minio/minio-go/blob/master/examples/s3/makebucket.go)
+* [listbuckets.go](https://github.com/minio/minio-go/blob/master/examples/s3/listbuckets.go)
+* [bucketexists.go](https://github.com/minio/minio-go/blob/master/examples/s3/bucketexists.go)
+* [removebucket.go](https://github.com/minio/minio-go/blob/master/examples/s3/removebucket.go)
+* [listobjects.go](https://github.com/minio/minio-go/blob/master/examples/s3/listobjects.go)
+* [listobjectsV2.go](https://github.com/minio/minio-go/blob/master/examples/s3/listobjectsV2.go)
+* [listincompleteuploads.go](https://github.com/minio/minio-go/blob/master/examples/s3/listincompleteuploads.go)
+
+### 完整示例 : 存储桶策略
+* [setbucketpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketpolicy.go)
+* [getbucketpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketpolicy.go)
+* [listbucketpolicies.go](https://github.com/minio/minio-go/blob/master/examples/s3/listbucketpolicies.go)
+
+### 完整示例 : 存储桶通知
+* [setbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketnotification.go)
+* [getbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketnotification.go)
+* [removeallbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeallbucketnotification.go)
+* [listenbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/minio/listenbucketnotification.go) (MinIO扩展)
+
+### 完整示例 : 操作文件对象
+* [fputobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputobject.go)
+* [fgetobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/fgetobject.go)
+* [fputobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputobject-context.go)
+* [fgetobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/fgetobject-context.go)
+
+### 完整示例 : 操作对象
+* [putobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/putobject.go)
+* [getobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/getobject.go)
+* [putobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/putobject-context.go)
+* [getobject-context.go](https://github.com/minio/minio-go/blob/master/examples/s3/getobject-context.go)
+* [statobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/statobject.go)
+* [copyobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/copyobject.go)
+* [removeobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeobject.go)
+* [removeincompleteupload.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeincompleteupload.go)
+* [removeobjects.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeobjects.go)
+
+### 完整示例 : 操作加密对象
+* [put-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/put-encrypted-object.go)
+* [get-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/get-encrypted-object.go)
+* [fput-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputencrypted-object.go)
+
+### 完整示例 : Presigned操作
+* [presignedgetobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedgetobject.go)
+* [presignedputobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedputobject.go)
+* [presignedheadobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedheadobject.go)
+* [presignedpostpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedpostpolicy.go)
+
+## 了解更多
+* [完整文档](https://docs.min.io)
+* [MinIO Go Client SDK API文档](https://docs.min.io/docs/golang-client-api-reference)
+
+## 贡献
+[贡献指南](https://github.com/minio/minio-go/blob/master/docs/zh_CN/CONTRIBUTING.md)

vendor/github.com/minio/minio-go/v7/api-bucket-encryption.go

@@ -0,0 +1,134 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ * 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 minio
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"net/http"
+	"net/url"
+
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+	"github.com/minio/minio-go/v7/pkg/sse"
+)
+
+// SetBucketEncryption sets the default encryption configuration on an existing bucket.
+func (c Client) SetBucketEncryption(ctx context.Context, bucketName string, config *sse.Configuration) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	if config == nil {
+		return errInvalidArgument("configuration cannot be empty")
+	}
+
+	buf, err := xml.Marshal(config)
+	if err != nil {
+		return err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("encryption", "")
+
+	// Content-length is mandatory to set a default encryption configuration
+	reqMetadata := requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentBody:      bytes.NewReader(buf),
+		contentLength:    int64(len(buf)),
+		contentMD5Base64: sumMD5Base64(buf),
+	}
+
+	// Execute PUT to upload a new bucket default encryption configuration.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != http.StatusOK {
+		return httpRespToErrorResponse(resp, bucketName, "")
+	}
+	return nil
+}
+
+// RemoveBucketEncryption removes the default encryption configuration on a bucket with a context to control cancellations and timeouts.
+func (c Client) RemoveBucketEncryption(ctx context.Context, bucketName string) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("encryption", "")
+
+	// DELETE default encryption configuration on a bucket.
+	resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
+		return httpRespToErrorResponse(resp, bucketName, "")
+	}
+	return nil
+}
+
+// GetBucketEncryption gets the default encryption configuration
+// on an existing bucket with a context to control cancellations and timeouts.
+func (c Client) GetBucketEncryption(ctx context.Context, bucketName string) (*sse.Configuration, error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return nil, err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("encryption", "")
+
+	// Execute GET on bucket to get the default encryption configuration.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:  bucketName,
+		queryValues: urlValues,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, httpRespToErrorResponse(resp, bucketName, "")
+	}
+
+	encryptionConfig := &sse.Configuration{}
+	if err = xmlDecoder(resp.Body, encryptionConfig); err != nil {
+		return nil, err
+	}
+
+	return encryptionConfig, nil
+}

vendor/github.com/minio/minio-go/v7/api-bucket-lifecycle.go

@@ -0,0 +1,147 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ *
+ * 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 minio
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+
+	"github.com/minio/minio-go/v7/pkg/lifecycle"
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// SetBucketLifecycle set the lifecycle on an existing bucket.
+func (c Client) SetBucketLifecycle(ctx context.Context, bucketName string, config *lifecycle.Configuration) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	// If lifecycle is empty then delete it.
+	if config.Empty() {
+		return c.removeBucketLifecycle(ctx, bucketName)
+	}
+
+	buf, err := xml.Marshal(config)
+	if err != nil {
+		return err
+	}
+
+	// Save the updated lifecycle.
+	return c.putBucketLifecycle(ctx, bucketName, buf)
+}
+
+// Saves a new bucket lifecycle.
+func (c Client) putBucketLifecycle(ctx context.Context, bucketName string, buf []byte) error {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("lifecycle", "")
+
+	// Content-length is mandatory for put lifecycle request
+	reqMetadata := requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentBody:      bytes.NewReader(buf),
+		contentLength:    int64(len(buf)),
+		contentMD5Base64: sumMD5Base64(buf),
+	}
+
+	// Execute PUT to upload a new bucket lifecycle.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp != nil {
+		if resp.StatusCode != http.StatusOK {
+			return httpRespToErrorResponse(resp, bucketName, "")
+		}
+	}
+	return nil
+}
+
+// Remove lifecycle from a bucket.
+func (c Client) removeBucketLifecycle(ctx context.Context, bucketName string) error {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("lifecycle", "")
+
+	// Execute DELETE on objectName.
+	resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetBucketLifecycle fetch bucket lifecycle configuration
+func (c Client) GetBucketLifecycle(ctx context.Context, bucketName string) (*lifecycle.Configuration, error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return nil, err
+	}
+
+	bucketLifecycle, err := c.getBucketLifecycle(ctx, bucketName)
+	if err != nil {
+		return nil, err
+	}
+
+	config := lifecycle.NewConfiguration()
+	if err = xml.Unmarshal(bucketLifecycle, config); err != nil {
+		return nil, err
+	}
+	return config, nil
+}
+
+// Request server for current bucket lifecycle.
+func (c Client) getBucketLifecycle(ctx context.Context, bucketName string) ([]byte, error) {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("lifecycle", "")
+
+	// Execute GET on bucket to get lifecycle.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:  bucketName,
+		queryValues: urlValues,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp != nil {
+		if resp.StatusCode != http.StatusOK {
+			return nil, httpRespToErrorResponse(resp, bucketName, "")
+		}
+	}
+
+	return ioutil.ReadAll(resp.Body)
+}

vendor/github.com/minio/minio-go/v7/api-bucket-notification.go

@@ -0,0 +1,255 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2017-2020 MinIO, Inc.
+ *
+ * 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 minio
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"encoding/xml"
+	"net/http"
+	"net/url"
+	"time"
+
+	jsoniter "github.com/json-iterator/go"
+	"github.com/minio/minio-go/v7/pkg/notification"
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// SetBucketNotification saves a new bucket notification with a context to control cancellations and timeouts.
+func (c Client) SetBucketNotification(ctx context.Context, bucketName string, config notification.Configuration) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("notification", "")
+
+	notifBytes, err := xml.Marshal(&config)
+	if err != nil {
+		return err
+	}
+
+	notifBuffer := bytes.NewReader(notifBytes)
+	reqMetadata := requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentBody:      notifBuffer,
+		contentLength:    int64(len(notifBytes)),
+		contentMD5Base64: sumMD5Base64(notifBytes),
+		contentSHA256Hex: sum256Hex(notifBytes),
+	}
+
+	// Execute PUT to upload a new bucket notification.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp != nil {
+		if resp.StatusCode != http.StatusOK {
+			return httpRespToErrorResponse(resp, bucketName, "")
+		}
+	}
+	return nil
+}
+
+// RemoveAllBucketNotification - Remove bucket notification clears all previously specified config
+func (c Client) RemoveAllBucketNotification(ctx context.Context, bucketName string) error {
+	return c.SetBucketNotification(ctx, bucketName, notification.Configuration{})
+}
+
+// GetBucketNotification returns current bucket notification configuration
+func (c Client) GetBucketNotification(ctx context.Context, bucketName string) (bucketNotification notification.Configuration, err error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return notification.Configuration{}, err
+	}
+	return c.getBucketNotification(ctx, bucketName)
+}
+
+// Request server for notification rules.
+func (c Client) getBucketNotification(ctx context.Context, bucketName string) (notification.Configuration, error) {
+	urlValues := make(url.Values)
+	urlValues.Set("notification", "")
+
+	// Execute GET on bucket to list objects.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return notification.Configuration{}, err
+	}
+	return processBucketNotificationResponse(bucketName, resp)
+
+}
+
+// processes the GetNotification http response from the server.
+func processBucketNotificationResponse(bucketName string, resp *http.Response) (notification.Configuration, error) {
+	if resp.StatusCode != http.StatusOK {
+		errResponse := httpRespToErrorResponse(resp, bucketName, "")
+		return notification.Configuration{}, errResponse
+	}
+	var bucketNotification notification.Configuration
+	err := xmlDecoder(resp.Body, &bucketNotification)
+	if err != nil {
+		return notification.Configuration{}, err
+	}
+	return bucketNotification, nil
+}
+
+// ListenNotification listen for all events, this is a MinIO specific API
+func (c Client) ListenNotification(ctx context.Context, prefix, suffix string, events []string) <-chan notification.Info {
+	return c.ListenBucketNotification(ctx, "", prefix, suffix, events)
+}
+
+// ListenBucketNotification listen for bucket events, this is a MinIO specific API
+func (c Client) ListenBucketNotification(ctx context.Context, bucketName, prefix, suffix string, events []string) <-chan notification.Info {
+	notificationInfoCh := make(chan notification.Info, 1)
+	const notificationCapacity = 4 * 1024 * 1024
+	notificationEventBuffer := make([]byte, notificationCapacity)
+	// Only success, start a routine to start reading line by line.
+	go func(notificationInfoCh chan<- notification.Info) {
+		defer close(notificationInfoCh)
+
+		// Validate the bucket name.
+		if bucketName != "" {
+			if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+				select {
+				case notificationInfoCh <- notification.Info{
+					Err: err,
+				}:
+				case <-ctx.Done():
+				}
+				return
+			}
+		}
+
+		// Check ARN partition to verify if listening bucket is supported
+		if s3utils.IsAmazonEndpoint(*c.endpointURL) || s3utils.IsGoogleEndpoint(*c.endpointURL) {
+			select {
+			case notificationInfoCh <- notification.Info{
+				Err: errAPINotSupported("Listening for bucket notification is specific only to `minio` server endpoints"),
+			}:
+			case <-ctx.Done():
+			}
+			return
+		}
+
+		// Continuously run and listen on bucket notification.
+		// Create a done channel to control 'ListObjects' go routine.
+		retryDoneCh := make(chan struct{}, 1)
+
+		// Indicate to our routine to exit cleanly upon return.
+		defer close(retryDoneCh)
+
+		// Prepare urlValues to pass into the request on every loop
+		urlValues := make(url.Values)
+		urlValues.Set("prefix", prefix)
+		urlValues.Set("suffix", suffix)
+		urlValues["events"] = events
+
+		// Wait on the jitter retry loop.
+		for range c.newRetryTimerContinous(time.Second, time.Second*30, MaxJitter, retryDoneCh) {
+			// Execute GET on bucket to list objects.
+			resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+				bucketName:       bucketName,
+				queryValues:      urlValues,
+				contentSHA256Hex: emptySHA256Hex,
+			})
+			if err != nil {
+				select {
+				case notificationInfoCh <- notification.Info{
+					Err: err,
+				}:
+				case <-ctx.Done():
+				}
+				return
+			}
+
+			// Validate http response, upon error return quickly.
+			if resp.StatusCode != http.StatusOK {
+				errResponse := httpRespToErrorResponse(resp, bucketName, "")
+				select {
+				case notificationInfoCh <- notification.Info{
+					Err: errResponse,
+				}:
+				case <-ctx.Done():
+				}
+				return
+			}
+
+			// Initialize a new bufio scanner, to read line by line.
+			bio := bufio.NewScanner(resp.Body)
+
+			// Use a higher buffer to support unexpected
+			// caching done by proxies
+			bio.Buffer(notificationEventBuffer, notificationCapacity)
+			var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
+			// Unmarshal each line, returns marshaled values.
+			for bio.Scan() {
+				var notificationInfo notification.Info
+				if err = json.Unmarshal(bio.Bytes(), &notificationInfo); err != nil {
+					// Unexpected error during json unmarshal, send
+					// the error to caller for actionable as needed.
+					select {
+					case notificationInfoCh <- notification.Info{
+						Err: err,
+					}:
+					case <-ctx.Done():
+						return
+					}
+					closeResponse(resp)
+					continue
+				}
+				// Send notificationInfo
+				select {
+				case notificationInfoCh <- notificationInfo:
+				case <-ctx.Done():
+					closeResponse(resp)
+					return
+				}
+			}
+
+			if err = bio.Err(); err != nil {
+				select {
+				case notificationInfoCh <- notification.Info{
+					Err: err,
+				}:
+				case <-ctx.Done():
+					return
+				}
+			}
+
+			// Close current connection before looping further.
+			closeResponse(resp)
+
+		}
+	}(notificationInfoCh)
+
+	// Returns the notification info channel, for caller to start reading from.
+	return notificationInfoCh
+}

vendor/github.com/minio/minio-go/v7/api-bucket-policy.go

@@ -0,0 +1,142 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ * 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 minio
+
+import (
+	"context"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// SetBucketPolicy sets the access permissions on an existing bucket.
+func (c Client) SetBucketPolicy(ctx context.Context, bucketName, policy string) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	// If policy is empty then delete the bucket policy.
+	if policy == "" {
+		return c.removeBucketPolicy(ctx, bucketName)
+	}
+
+	// Save the updated policies.
+	return c.putBucketPolicy(ctx, bucketName, policy)
+}
+
+// Saves a new bucket policy.
+func (c Client) putBucketPolicy(ctx context.Context, bucketName, policy string) error {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("policy", "")
+
+	reqMetadata := requestMetadata{
+		bucketName:    bucketName,
+		queryValues:   urlValues,
+		contentBody:   strings.NewReader(policy),
+		contentLength: int64(len(policy)),
+	}
+
+	// Execute PUT to upload a new bucket policy.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp != nil {
+		if resp.StatusCode != http.StatusNoContent {
+			return httpRespToErrorResponse(resp, bucketName, "")
+		}
+	}
+	return nil
+}
+
+// Removes all policies on a bucket.
+func (c Client) removeBucketPolicy(ctx context.Context, bucketName string) error {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("policy", "")
+
+	// Execute DELETE on objectName.
+	resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetBucketPolicy returns the current policy
+func (c Client) GetBucketPolicy(ctx context.Context, bucketName string) (string, error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return "", err
+	}
+	bucketPolicy, err := c.getBucketPolicy(ctx, bucketName)
+	if err != nil {
+		errResponse := ToErrorResponse(err)
+		if errResponse.Code == "NoSuchBucketPolicy" {
+			return "", nil
+		}
+		return "", err
+	}
+	return bucketPolicy, nil
+}
+
+// Request server for current bucket policy.
+func (c Client) getBucketPolicy(ctx context.Context, bucketName string) (string, error) {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("policy", "")
+
+	// Execute GET on bucket to list objects.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return "", err
+	}
+
+	if resp != nil {
+		if resp.StatusCode != http.StatusOK {
+			return "", httpRespToErrorResponse(resp, bucketName, "")
+		}
+	}
+
+	bucketPolicyBuf, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	policy := string(bucketPolicyBuf)
+	return policy, err
+}

vendor/github.com/minio/minio-go/v7/api-bucket-replication.go

@@ -0,0 +1,149 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ *
+ * 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 minio
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"net/http"
+	"net/url"
+
+	"github.com/minio/minio-go/v7/pkg/replication"
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// RemoveBucketReplication removes a replication config on an existing bucket.
+func (c Client) RemoveBucketReplication(ctx context.Context, bucketName string) error {
+	return c.removeBucketReplication(ctx, bucketName)
+}
+
+// SetBucketReplication sets a replication config on an existing bucket.
+func (c Client) SetBucketReplication(ctx context.Context, bucketName string, cfg replication.Config) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	// If replication is empty then delete it.
+	if cfg.Empty() {
+		return c.removeBucketReplication(ctx, bucketName)
+	}
+	// Save the updated replication.
+	return c.putBucketReplication(ctx, bucketName, cfg)
+}
+
+// Saves a new bucket replication.
+func (c Client) putBucketReplication(ctx context.Context, bucketName string, cfg replication.Config) error {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("replication", "")
+	replication, err := xml.Marshal(cfg)
+	if err != nil {
+		return err
+	}
+
+	reqMetadata := requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentBody:      bytes.NewReader(replication),
+		contentLength:    int64(len(replication)),
+		contentMD5Base64: sumMD5Base64(replication),
+	}
+
+	// Execute PUT to upload a new bucket replication config.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return httpRespToErrorResponse(resp, bucketName, "")
+	}
+
+	return nil
+}
+
+// Remove replication from a bucket.
+func (c Client) removeBucketReplication(ctx context.Context, bucketName string) error {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("replication", "")
+
+	// Execute DELETE on objectName.
+	resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetBucketReplication fetches bucket replication configuration.If config is not
+// found, returns empty config with nil error.
+func (c Client) GetBucketReplication(ctx context.Context, bucketName string) (cfg replication.Config, err error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return cfg, err
+	}
+	bucketReplicationCfg, err := c.getBucketReplication(ctx, bucketName)
+	if err != nil {
+		errResponse := ToErrorResponse(err)
+		if errResponse.Code == "ReplicationConfigurationNotFoundError" {
+			return cfg, nil
+		}
+		return cfg, err
+	}
+	return bucketReplicationCfg, nil
+}
+
+// Request server for current bucket replication config.
+func (c Client) getBucketReplication(ctx context.Context, bucketName string) (cfg replication.Config, err error) {
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("replication", "")
+
+	// Execute GET on bucket to get replication config.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:  bucketName,
+		queryValues: urlValues,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return cfg, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return cfg, httpRespToErrorResponse(resp, bucketName, "")
+	}
+
+	if err = xmlDecoder(resp.Body, &cfg); err != nil {
+		return cfg, err
+	}
+
+	return cfg, nil
+}

vendor/github.com/minio/minio-go/v7/api-bucket-tagging.go

@@ -0,0 +1,135 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ * 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 minio
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+	"github.com/minio/minio-go/v7/pkg/tags"
+)
+
+// GetBucketTagging fetch tagging configuration for a bucket with a
+// context to control cancellations and timeouts.
+func (c Client) GetBucketTagging(ctx context.Context, bucketName string) (*tags.Tags, error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return nil, err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("tagging", "")
+
+	// Execute GET on bucket to get tagging configuration.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:  bucketName,
+		queryValues: urlValues,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, httpRespToErrorResponse(resp, bucketName, "")
+	}
+
+	defer io.Copy(ioutil.Discard, resp.Body)
+	return tags.ParseBucketXML(resp.Body)
+}
+
+// SetBucketTagging sets tagging configuration for a bucket
+// with a context to control cancellations and timeouts.
+func (c Client) SetBucketTagging(ctx context.Context, bucketName string, tags *tags.Tags) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	if tags == nil {
+		return errors.New("nil tags passed")
+	}
+
+	buf, err := xml.Marshal(tags)
+	if err != nil {
+		return err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("tagging", "")
+
+	// Content-length is mandatory to set a default encryption configuration
+	reqMetadata := requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentBody:      bytes.NewReader(buf),
+		contentLength:    int64(len(buf)),
+		contentMD5Base64: sumMD5Base64(buf),
+	}
+
+	// Execute PUT on bucket to put tagging configuration.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
+		return httpRespToErrorResponse(resp, bucketName, "")
+	}
+	return nil
+}
+
+// RemoveBucketTagging removes tagging configuration for a
+// bucket with a context to control cancellations and timeouts.
+func (c Client) RemoveBucketTagging(ctx context.Context, bucketName string) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("tagging", "")
+
+	// Execute DELETE on bucket to remove tagging configuration.
+	resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentSHA256Hex: emptySHA256Hex,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
+		return httpRespToErrorResponse(resp, bucketName, "")
+	}
+	return nil
+}

vendor/github.com/minio/minio-go/v7/api-bucket-versioning.go

@@ -0,0 +1,120 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ * 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 minio
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"net/http"
+	"net/url"
+
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// SetBucketVersioning sets a bucket versioning configuration
+func (c Client) SetBucketVersioning(ctx context.Context, bucketName string, config BucketVersioningConfiguration) error {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return err
+	}
+
+	buf, err := xml.Marshal(config)
+	if err != nil {
+		return err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("versioning", "")
+
+	reqMetadata := requestMetadata{
+		bucketName:       bucketName,
+		queryValues:      urlValues,
+		contentBody:      bytes.NewReader(buf),
+		contentLength:    int64(len(buf)),
+		contentMD5Base64: sumMD5Base64(buf),
+		contentSHA256Hex: sum256Hex(buf),
+	}
+
+	// Execute PUT to set a bucket versioning.
+	resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
+	defer closeResponse(resp)
+	if err != nil {
+		return err
+	}
+	if resp != nil {
+		if resp.StatusCode != http.StatusOK {
+			return httpRespToErrorResponse(resp, bucketName, "")
+		}
+	}
+	return nil
+}
+
+// EnableVersioning - enable object versioning in given bucket.
+func (c Client) EnableVersioning(ctx context.Context, bucketName string) error {
+	return c.SetBucketVersioning(ctx, bucketName, BucketVersioningConfiguration{Status: "Enabled"})
+}
+
+// SuspendVersioning - suspend object versioning in given bucket.
+func (c Client) SuspendVersioning(ctx context.Context, bucketName string) error {
+	return c.SetBucketVersioning(ctx, bucketName, BucketVersioningConfiguration{Status: "Suspended"})
+}
+
+// BucketVersioningConfiguration is the versioning configuration structure
+type BucketVersioningConfiguration struct {
+	XMLName   xml.Name `xml:"VersioningConfiguration"`
+	Status    string   `xml:"Status"`
+	MFADelete string   `xml:"MfaDelete,omitempty"`
+}
+
+// GetBucketVersioning gets the versioning configuration on
+// an existing bucket with a context to control cancellations and timeouts.
+func (c Client) GetBucketVersioning(ctx context.Context, bucketName string) (BucketVersioningConfiguration, error) {
+	// Input validation.
+	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
+		return BucketVersioningConfiguration{}, err
+	}
+
+	// Get resources properly escaped and lined up before
+	// using them in http request.
+	urlValues := make(url.Values)
+	urlValues.Set("versioning", "")
+
+	// Execute GET on bucket to get the versioning configuration.
+	resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
+		bucketName:  bucketName,
+		queryValues: urlValues,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return BucketVersioningConfiguration{}, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return BucketVersioningConfiguration{}, httpRespToErrorResponse(resp, bucketName, "")
+	}
+
+	versioningConfig := BucketVersioningConfiguration{}
+	if err = xmlDecoder(resp.Body, &versioningConfig); err != nil {
+		return versioningConfig, err
+	}
+
+	return versioningConfig, nil
+}

vendor/github.com/minio/minio-go/v7/api-compose-object.go

@@ -0,0 +1,552 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2017, 2018 MinIO, Inc.
+ *
+ * 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 minio
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/minio/minio-go/v7/pkg/encrypt"
+	"github.com/minio/minio-go/v7/pkg/s3utils"
+)
+
+// CopyDestOptions represents options specified by user for CopyObject/ComposeObject APIs
+type CopyDestOptions struct {
+	Bucket string // points to destination bucket
+	Object string // points to destination object
+
+	// `Encryption` is the key info for server-side-encryption with customer
+	// provided key. If it is nil, no encryption is performed.
+	Encryption encrypt.ServerSide
+
+	// `userMeta` is the user-metadata key-value pairs to be set on the
+	// destination. The keys are automatically prefixed with `x-amz-meta-`
+	// if needed. If nil is passed, and if only a single source (of any
+	// size) is provided in the ComposeObject call, then metadata from the
+	// source is copied to the destination.
+	// if no user-metadata is provided, it is copied from source
+	// (when there is only once source object in the compose
+	// request)
+	UserMetadata map[string]string
+	// UserMetadata is only set to destination if ReplaceMetadata is true
+	// other value is UserMetadata is ignored and we preserve src.UserMetadata
+	// NOTE: if you set this value to true and now metadata is present
+	// in UserMetadata your destination object will not have any metadata
+	// set.
+	ReplaceMetadata bool
+
+	// `userTags` is the user defined object tags to be set on destination.
+	// This will be set only if the `replaceTags` field is set to true.
+	// Otherwise this field is ignored
+	UserTags    map[string]string
+	ReplaceTags bool
+
+	// Specifies whether you want to apply a Legal Hold to the copied object.
+	LegalHold LegalHoldStatus
+
+	// Object Retention related fields
+	Mode            RetentionMode
+	RetainUntilDate time.Time
+
+	Size int64 // Needs to be specified if progress bar is specified.
+	// Progress of the entire copy operation will be sent here.
+	Progress io.Reader
+}
+
+// Process custom-metadata to remove a `x-amz-meta-` prefix if
+// present and validate that keys are distinct (after this
+// prefix removal).
+func filterCustomMeta(userMeta map[string]string) map[string]string {
+	m := make(map[string]string)
+	for k, v := range userMeta {
+		if strings.HasPrefix(strings.ToLower(k), "x-amz-meta-") {
+			k = k[len("x-amz-meta-"):]
+		}
+		if _, ok := m[k]; ok {
+			continue
+		}
+		m[k] = v
+	}
+	return m
+}
+
+// Marshal converts all the CopyDestOptions into their
+// equivalent HTTP header representation
+func (opts CopyDestOptions) Marshal(header http.Header) {
+	const replaceDirective = "REPLACE"
+	if opts.ReplaceTags {
+		header.Set(amzTaggingHeaderDirective, replaceDirective)
+		if tags := s3utils.TagEncode(opts.UserTags); tags != "" {
+			header.Set(amzTaggingHeader, tags)
+		}
+	}
+
+	if opts.LegalHold != LegalHoldStatus("") {
+		header.Set(amzLegalHoldHeader, opts.LegalHold.String())
+	}
+
+	if opts.Mode != RetentionMode("") && !opts.RetainUntilDate.IsZero() {
+		header.Set(amzLockMode, opts.Mode.String())
+		header.Set(amzLockRetainUntil, opts.RetainUntilDate.Format(time.RFC3339))
+	}
+
+	if opts.Encryption != nil {
+		opts.Encryption.Marshal(header)
+	}
+
+	if opts.ReplaceMetadata {
+		header.Set("x-amz-metadata-directive", replaceDirective)
+		for k, v := range filterCustomMeta(opts.UserMetadata) {
+			if isAmzHeader(k) || isStandardHeader(k) || isStorageClassHeader(k) {
+				header.Set(k, v)
+			} else {
+				header.Set("x-amz-meta-"+k, v)
+			}
+		}
+	}
+}
+
+// toDestinationInfo returns a validated copyOptions object.
+func (opts CopyDestOptions) validate() (err error) {
+	// Input validation.
+	if err = s3utils.CheckValidBucketName(opts.Bucket); err != nil {
+		return err
+	}
+	if err = s3utils.CheckValidObjectName(opts.Object); err != nil {
+		return err
+	}
+	if opts.Progress != nil && opts.Size < 0 {
+		return errInvalidArgument("For progress bar effective size needs to be specified")
+	}
+	return nil
+}
+
+// CopySrcOptions represents a source object to be copied, using
+// server-side copying APIs.
+type CopySrcOptions struct {
+	Bucket, Object       string
+	VersionID            string
+	MatchETag            string
+	NoMatchETag          string
+	MatchModifiedSince   time.Time
+	MatchUnmodifiedSince time.Time
+	MatchRange           bool
+	Start, End           int64
+	Encryption           encrypt.ServerSide
+}
+
+// Marshal converts all the CopySrcOptions into their
+// equivalent HTTP header representation
+func (opts CopySrcOptions) Marshal(header http.Header) {
+	// Set the source header
+	header.Set("x-amz-copy-source", s3utils.EncodePath(opts.Bucket+"/"+opts.Object))
+	if opts.VersionID != "" {
+		header.Set("x-amz-copy-source", s3utils.EncodePath(opts.Bucket+"/"+opts.Object)+"?versionId="+opts.VersionID)
+	}
+
+	if opts.MatchETag != "" {
+		header.Set("x-amz-copy-source-if-match", opts.MatchETag)
+	}
+	if opts.NoMatchETag != "" {
+		header.Set("x-amz-copy-source-if-none-match", opts.NoMatchETag)
+	}
+
+	if !opts.MatchModifiedSince.IsZero() {
+		header.Set("x-amz-copy-source-if-modified-since", opts.MatchModifiedSince.Format(http.TimeFormat))
+	}
+	if !opts.MatchUnmodifiedSince.IsZero() {
+		header.Set("x-amz-copy-source-if-unmodified-since", opts.MatchUnmodifiedSince.Format(http.TimeFormat))
+	}
+
+	if opts.Encryption != nil {
+		encrypt.SSECopy(opts.Encryption).Marshal(header)
+	}
+}
+
+func (opts CopySrcOptions) validate() (err error) {
+	// Input validation.
+	if err = s3utils.CheckValidBucketName(opts.Bucket); err != nil {
+		return err
+	}
+	if err = s3utils.CheckValidObjectName(opts.Object); err != nil {
+		return err
+	}
+	if opts.Start > opts.End || opts.Start < 0 {
+		return errInvalidArgument("start must be non-negative, and start must be at most end.")
+	}
+	return nil
+}
+
+// Low level implementation of CopyObject API, supports only upto 5GiB worth of copy.
+func (c Client) copyObjectDo(ctx context.Context, srcBucket, srcObject, destBucket, destObject string,
+	metadata map[string]string) (ObjectInfo, error) {
+
+	// Build headers.
+	headers := make(http.Header)
+
+	// Set all the metadata headers.
+	for k, v := range metadata {
+		headers.Set(k, v)
+	}
+
+	// Set the source header
+	headers.Set("x-amz-copy-source", s3utils.EncodePath(srcBucket+"/"+srcObject))
+
+	// Send upload-part-copy request
+	resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
+		bucketName:   destBucket,
+		objectName:   destObject,
+		customHeader: headers,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return ObjectInfo{}, err
+	}
+
+	// Check if we got an error response.
+	if resp.StatusCode != http.StatusOK {
+		return ObjectInfo{}, httpRespToErrorResponse(resp, srcBucket, srcObject)
+	}
+
+	cpObjRes := copyObjectResult{}
+	err = xmlDecoder(resp.Body, &cpObjRes)
+	if err != nil {
+		return ObjectInfo{}, err
+	}
+
+	objInfo := ObjectInfo{
+		Key:          destObject,
+		ETag:         strings.Trim(cpObjRes.ETag, "\""),
+		LastModified: cpObjRes.LastModified,
+	}
+	return objInfo, nil
+}
+
+func (c Client) copyObjectPartDo(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string,
+	partID int, startOffset int64, length int64, metadata map[string]string) (p CompletePart, err error) {
+
+	headers := make(http.Header)
+
+	// Set source
+	headers.Set("x-amz-copy-source", s3utils.EncodePath(srcBucket+"/"+srcObject))
+
+	if startOffset < 0 {
+		return p, errInvalidArgument("startOffset must be non-negative")
+	}
+
+	if length >= 0 {
+		headers.Set("x-amz-copy-source-range", fmt.Sprintf("bytes=%d-%d", startOffset, startOffset+length-1))
+	}
+
+	for k, v := range metadata {
+		headers.Set(k, v)
+	}
+
+	queryValues := make(url.Values)
+	queryValues.Set("partNumber", strconv.Itoa(partID))
+	queryValues.Set("uploadId", uploadID)
+
+	resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
+		bucketName:   destBucket,
+		objectName:   destObject,
+		customHeader: headers,
+		queryValues:  queryValues,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return
+	}
+
+	// Check if we got an error response.
+	if resp.StatusCode != http.StatusOK {
+		return p, httpRespToErrorResponse(resp, destBucket, destObject)
+	}
+
+	// Decode copy-part response on success.
+	cpObjRes := copyObjectResult{}
+	err = xmlDecoder(resp.Body, &cpObjRes)
+	if err != nil {
+		return p, err
+	}
+	p.PartNumber, p.ETag = partID, cpObjRes.ETag
+	return p, nil
+}
+
+// uploadPartCopy - helper function to create a part in a multipart
+// upload via an upload-part-copy request
+// https://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadUploadPartCopy.html
+func (c Client) uploadPartCopy(ctx context.Context, bucket, object, uploadID string, partNumber int,
+	headers http.Header) (p CompletePart, err error) {
+
+	// Build query parameters
+	urlValues := make(url.Values)
+	urlValues.Set("partNumber", strconv.Itoa(partNumber))
+	urlValues.Set("uploadId", uploadID)
+
+	// Send upload-part-copy request
+	resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
+		bucketName:   bucket,
+		objectName:   object,
+		customHeader: headers,
+		queryValues:  urlValues,
+	})
+	defer closeResponse(resp)
+	if err != nil {
+		return p, err
+	}
+
+	// Check if we got an error response.
+	if resp.StatusCode != http.StatusOK {
+		return p, httpRespToErrorResponse(resp, bucket, object)
+	}
+
+	// Decode copy-part response on success.
+	cpObjRes := copyObjectResult{}
+	err = xmlDecoder(resp.Body, &cpObjRes)
+	if err != nil {
+		return p, err
+	}
+	p.PartNumber, p.ETag = partNumber, cpObjRes.ETag
+	return p, nil
+}
+
+// ComposeObject - creates an object using server-side copying
+// of existing objects. It takes a list of source objects (with optional offsets)
+// and concatenates them into a new object using only server-side copying
+// operations. Optionally takes progress reader hook for applications to
+// look at current progress.
+func (c Client) ComposeObject(ctx context.Context, dst CopyDestOptions, srcs ...CopySrcOptions) (UploadInfo, error) {
+	if len(srcs) < 1 || len(srcs) > maxPartsCount {
+		return UploadInfo{}, errInvalidArgument("There must be as least one and up to 10000 source objects.")
+	}
+
+	for _, src := range srcs {
+		if err := src.validate(); err != nil {
+			return UploadInfo{}, err
+		}
+	}
+
+	if err := dst.validate(); err != nil {
+		return UploadInfo{}, err
+	}
+
+	srcObjectInfos := make([]ObjectInfo, len(srcs))
+	srcObjectSizes := make([]int64, len(srcs))
+	var totalSize, totalParts int64
+	var err error
+	for i, src := range srcs {
+		opts := StatObjectOptions{ServerSideEncryption: encrypt.SSE(src.Encryption), VersionID: src.VersionID}
+		srcObjectInfos[i], err = c.statObject(context.Background(), src.Bucket, src.Object, opts)
+		if err != nil {
+			return UploadInfo{}, err
+		}
+
+		srcCopySize := srcObjectInfos[i].Size
+		// Check if a segment is specified, and if so, is the
+		// segment within object bounds?
+		if src.MatchRange {
+			// Since range is specified,
+			//    0 <= src.start <= src.end
+			// so only invalid case to check is:
+			if src.End >= srcCopySize || src.Start < 0 {
+				return UploadInfo{}, errInvalidArgument(
+					fmt.Sprintf("CopySrcOptions %d has invalid segment-to-copy [%d, %d] (size is %d)",
+						i, src.Start, src.End, srcCopySize))
+			}
+			srcCopySize = src.End - src.Start + 1
+		}
+
+		// Only the last source may be less than `absMinPartSize`
+		if srcCopySize < absMinPartSize && i < len(srcs)-1 {
+			return UploadInfo{}, errInvalidArgument(
+				fmt.Sprintf("CopySrcOptions %d is too small (%d) and it is not the last part", i, srcCopySize))
+		}
+
+		// Is data to copy too large?
+		totalSize += srcCopySize
+		if totalSize > maxMultipartPutObjectSize {
+			return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Cannot compose an object of size %d (> 5TiB)", totalSize))
+		}
+
+		// record source size
+		srcObjectSizes[i] = srcCopySize
+
+		// calculate parts needed for current source
+		totalParts += partsRequired(srcCopySize)
+		// Do we need more parts than we are allowed?
+		if totalParts > maxPartsCount {
+			return UploadInfo{}, errInvalidArgument(fmt.Sprintf(
+				"Your proposed compose object requires more than %d parts", maxPartsCount))
+		}
+	}
+
+	// Single source object case (i.e. when only one source is
+	// involved, it is being copied wholly and at most 5GiB in
+	// size, emptyfiles are also supported).
+	if (totalParts == 1 && srcs[0].Start == -1 && totalSize <= maxPartSize) || (totalSize == 0) {
+		return c.CopyObject(ctx, dst, srcs[0])
+	}
+
+	// Now, handle multipart-copy cases.
+
+	// 1. Ensure that the object has not been changed while
+	//    we are copying data.
+	for i, src := range srcs {
+		src.MatchETag = srcObjectInfos[i].ETag
+	}
+
+	// 2. Initiate a new multipart upload.
+
+	// Set user-metadata on the destination object. If no
+	// user-metadata is specified, and there is only one source,
+	// (only) then metadata from source is copied.
+	var userMeta map[string]string
+	if dst.ReplaceMetadata {
+		userMeta = dst.UserMetadata
+	} else {
+		userMeta = srcObjectInfos[0].UserMetadata
+	}
+
+	var userTags map[string]string
+	if dst.ReplaceTags {
+		userTags = dst.UserTags
+	} else {
+		userTags = srcObjectInfos[0].UserTags
+	}
+
+	uploadID, err := c.newUploadID(ctx, dst.Bucket, dst.Object, PutObjectOptions{
+		ServerSideEncryption: dst.Encryption,
+		UserMetadata:         userMeta,
+		UserTags:             userTags,
+		Mode:                 dst.Mode,
+		RetainUntilDate:      dst.RetainUntilDate,
+		LegalHold:            dst.LegalHold,
+	})
+	if err != nil {
+		return UploadInfo{}, err
+	}
+
+	// 3. Perform copy part uploads
+	objParts := []CompletePart{}
+	partIndex := 1
+	for i, src := range srcs {
+		var h = make(http.Header)
+		src.Marshal(h)
+		if dst.Encryption != nil && dst.Encryption.Type() == encrypt.SSEC {
+			dst.Encryption.Marshal(h)
+		}
+
+		// calculate start/end indices of parts after
+		// splitting.
+		startIdx, endIdx := calculateEvenSplits(srcObjectSizes[i], src)
+		for j, start := range startIdx {
+			end := endIdx[j]
+
+			// Add (or reset) source range header for
+			// upload part copy request.
+			h.Set("x-amz-copy-source-range",
+				fmt.Sprintf("bytes=%d-%d", start, end))
+
+			// make upload-part-copy request
+			complPart, err := c.uploadPartCopy(ctx, dst.Bucket,
+				dst.Object, uploadID, partIndex, h)
+			if err != nil {
+				return UploadInfo{}, err
+			}
+			if dst.Progress != nil {
+				io.CopyN(ioutil.Discard, dst.Progress, end-start+1)
+			}
+			objParts = append(objParts, complPart)
+			partIndex++
+		}
+	}
+
+	// 4. Make final complete-multipart request.
+	uploadInfo, err := c.completeMultipartUpload(ctx, dst.Bucket, dst.Object, uploadID,
+		completeMultipartUpload{Parts: objParts})
+	if err != nil {
+		return UploadInfo{}, err
+	}
+
+	uploadInfo.Size = totalSize
+	return uploadInfo, nil
+}
+
+// partsRequired is maximum parts possible with
+// max part size of ceiling(maxMultipartPutObjectSize / (maxPartsCount - 1))
+func partsRequired(size int64) int64 {
+	maxPartSize := maxMultipartPutObjectSize / (maxPartsCount - 1)
+	r := size / int64(maxPartSize)
+	if size%int64(maxPartSize) > 0 {
+		r++
+	}
+	return r
+}
+
+// calculateEvenSplits - computes splits for a source and returns
+// start and end index slices. Splits happen evenly to be sure that no
+// part is less than 5MiB, as that could fail the multipart request if
+// it is not the last part.
+func calculateEvenSplits(size int64, src CopySrcOptions) (startIndex, endIndex []int64) {
+	if size == 0 {
+		return
+	}
+
+	reqParts := partsRequired(size)
+	startIndex = make([]int64, reqParts)
+	endIndex = make([]int64, reqParts)
+	// Compute number of required parts `k`, as:
+	//
+	// k = ceiling(size / copyPartSize)
+	//
+	// Now, distribute the `size` bytes in the source into
+	// k parts as evenly as possible:
+	//
+	// r parts sized (q+1) bytes, and
+	// (k - r) parts sized q bytes, where
+	//
+	// size = q * k + r (by simple division of size by k,
+	// so that 0 <= r < k)
+	//
+	start := src.Start
+	if start == -1 {
+		start = 0
+	}
+	quot, rem := size/reqParts, size%reqParts
+	nextStart := start
+	for j := int64(0); j < reqParts; j++ {
+		curPartSize := quot
+		if j < rem {
+			curPartSize++
+		}
+
+		cStart := nextStart
+		cEnd := cStart + curPartSize - 1
+		nextStart = cEnd + 1
+
+		startIndex[j], endIndex[j] = cStart, cEnd
+	}
+	return
+}

vendor/github.com/minio/minio-go/v7/api-datatypes.go

@@ -0,0 +1,173 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2015-2020 MinIO, Inc.
+ *
+ * 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 minio
+
+import (
+	"encoding/xml"
+	"io"
+	"net/http"
+	"time"
+)
+
+// BucketInfo container for bucket metadata.
+type BucketInfo struct {
+	// The name of the bucket.
+	Name string `json:"name"`
+	// Date the bucket was created.
+	CreationDate time.Time `json:"creationDate"`
+}
+
+// StringMap represents map with custom UnmarshalXML
+type StringMap map[string]string
+
+// UnmarshalXML unmarshals the XML into a map of string to strings,
+// creating a key in the map for each tag and setting it's value to the
+// tags contents.
+//
+// The fact this function is on the pointer of Map is important, so that
+// if m is nil it can be initialized, which is often the case if m is
+// nested in another xml structural. This is also why the first thing done
+// on the first line is initialize it.
+func (m *StringMap) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
+	*m = StringMap{}
+	type xmlMapEntry struct {
+		XMLName xml.Name
+		Value   string `xml:",chardata"`
+	}
+	for {
+		var e xmlMapEntry
+		err := d.Decode(&e)
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return err
+		}
+		(*m)[e.XMLName.Local] = e.Value
+	}
+	return nil
+}
+
+// Owner name.
+type Owner struct {
+	DisplayName string `json:"name"`
+	ID          string `json:"id"`
+}
+
+// UploadInfo contains information about the
+// newly uploaded or copied object.
+type UploadInfo struct {
+	Bucket       string
+	Key          string
+	ETag         string
+	Size         int64
+	LastModified time.Time
+	Location     string
+	VersionID    string
+
+	// Lifecycle expiry-date and ruleID associated with the expiry
+	// not to be confused with `Expires` HTTP header.
+	Expiration       time.Time
+	ExpirationRuleID string
+}
+
+// ObjectInfo container for object metadata.
+type ObjectInfo struct {
+	// An ETag is optionally set to md5sum of an object.  In case of multipart objects,
+	// ETag is of the form MD5SUM-N where MD5SUM is md5sum of all individual md5sums of
+	// each parts concatenated into one string.
+	ETag string `json:"etag"`
+
+	Key          string    `json:"name"`         // Name of the object
+	LastModified time.Time `json:"lastModified"` // Date and time the object was last modified.
+	Size         int64     `json:"size"`         // Size in bytes of the object.
+	ContentType  string    `json:"contentType"`  // A standard MIME type describing the format of the object data.
+	Expires      time.Time `json:"expires"`      // The date and time at which the object is no longer able to be cached.
+
+	// Collection of additional metadata on the object.
+	// eg: x-amz-meta-*, content-encoding etc.
+	Metadata http.Header `json:"metadata" xml:"-"`
+
+	// x-amz-meta-* headers stripped "x-amz-meta-" prefix containing the first value.
+	UserMetadata StringMap `json:"userMetadata"`
+
+	// x-amz-tagging values in their k/v values.
+	UserTags map[string]string `json:"userTags"`
+
+	// x-amz-tagging-count value
+	UserTagCount int
+
+	// Owner name.
+	Owner Owner
+
+	// ACL grant.
+	Grant []struct {
+		Grantee struct {
+			ID          string `xml:"ID"`
+			DisplayName string `xml:"DisplayName"`
+			URI         string `xml:"URI"`
+		} `xml:"Grantee"`
+		Permission string `xml:"Permission"`
+	} `xml:"Grant"`
+
+	// The class of storage used to store the object.
+	StorageClass string `json:"storageClass"`
+
+	// Versioning related information
+	IsLatest       bool
+	IsDeleteMarker bool
+	VersionID      string `xml:"VersionId"`
+
+	// x-amz-replication-status value is either in one of the following states
+	// - COMPLETE
+	// - PENDING
+	// - FAILED
+	// - REPLICA (on the destination)
+	ReplicationStatus string `xml:"ReplicationStatus"`
+
+	// Lifecycle expiry-date and ruleID associated with the expiry
+	// not to be confused with `Expires` HTTP header.
+	Expiration       time.Time
+	ExpirationRuleID string
+
+	// Error
+	Err error `json:"-"`
+}
+
+// ObjectMultipartInfo container for multipart object metadata.
+type ObjectMultipartInfo struct {
+	// Date and time at which the multipart upload was initiated.
+	Initiated time.Time `type:"timestamp" timestampFormat:"iso8601"`
+
+	Initiator initiator
+	Owner     owner
+
+	// The type of storage to use for the object. Defaults to 'STANDARD'.
+	StorageClass string
+
+	// Key of the object for which the multipart upload was initiated.
+	Key string
+
+	// Size in bytes of the object.
+	Size int64
+
+	// Upload ID that identifies the multipart upload.
+	UploadID string `xml:"UploadId"`
+
+	// Error
+	Err error
+}