+++ /dev/null
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2016 The Go Authors. All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
- "errors"
- "fmt"
- "math"
- "reflect"
- "sort"
- "strconv"
- "strings"
- "sync"
- "sync/atomic"
- "unicode/utf8"
-)
-
-// a sizer takes a pointer to a field and the size of its tag, computes the size of
-// the encoded data.
-type sizer func(pointer, int) int
-
-// a marshaler takes a byte slice, a pointer to a field, and its tag (in wire format),
-// marshals the field to the end of the slice, returns the slice and error (if any).
-type marshaler func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error)
-
-// marshalInfo is the information used for marshaling a message.
-type marshalInfo struct {
- typ reflect.Type
- fields []*marshalFieldInfo
- unrecognized field // offset of XXX_unrecognized
- extensions field // offset of XXX_InternalExtensions
- v1extensions field // offset of XXX_extensions
- sizecache field // offset of XXX_sizecache
- initialized int32 // 0 -- only typ is set, 1 -- fully initialized
- messageset bool // uses message set wire format
- hasmarshaler bool // has custom marshaler
- sync.RWMutex // protect extElems map, also for initialization
- extElems map[int32]*marshalElemInfo // info of extension elements
-
- hassizer bool // has custom sizer
- hasprotosizer bool // has custom protosizer
-
- bytesExtensions field // offset of XXX_extensions where the field type is []byte
-}
-
-// marshalFieldInfo is the information used for marshaling a field of a message.
-type marshalFieldInfo struct {
- field field
- wiretag uint64 // tag in wire format
- tagsize int // size of tag in wire format
- sizer sizer
- marshaler marshaler
- isPointer bool
- required bool // field is required
- name string // name of the field, for error reporting
- oneofElems map[reflect.Type]*marshalElemInfo // info of oneof elements
-}
-
-// marshalElemInfo is the information used for marshaling an extension or oneof element.
-type marshalElemInfo struct {
- wiretag uint64 // tag in wire format
- tagsize int // size of tag in wire format
- sizer sizer
- marshaler marshaler
- isptr bool // elem is pointer typed, thus interface of this type is a direct interface (extension only)
-}
-
-var (
- marshalInfoMap = map[reflect.Type]*marshalInfo{}
- marshalInfoLock sync.Mutex
-
- uint8SliceType = reflect.TypeOf(([]uint8)(nil)).Kind()
-)
-
-// getMarshalInfo returns the information to marshal a given type of message.
-// The info it returns may not necessarily initialized.
-// t is the type of the message (NOT the pointer to it).
-func getMarshalInfo(t reflect.Type) *marshalInfo {
- marshalInfoLock.Lock()
- u, ok := marshalInfoMap[t]
- if !ok {
- u = &marshalInfo{typ: t}
- marshalInfoMap[t] = u
- }
- marshalInfoLock.Unlock()
- return u
-}
-
-// Size is the entry point from generated code,
-// and should be ONLY called by generated code.
-// It computes the size of encoded data of msg.
-// a is a pointer to a place to store cached marshal info.
-func (a *InternalMessageInfo) Size(msg Message) int {
- u := getMessageMarshalInfo(msg, a)
- ptr := toPointer(&msg)
- if ptr.isNil() {
- // We get here if msg is a typed nil ((*SomeMessage)(nil)),
- // so it satisfies the interface, and msg == nil wouldn't
- // catch it. We don't want crash in this case.
- return 0
- }
- return u.size(ptr)
-}
-
-// Marshal is the entry point from generated code,
-// and should be ONLY called by generated code.
-// It marshals msg to the end of b.
-// a is a pointer to a place to store cached marshal info.
-func (a *InternalMessageInfo) Marshal(b []byte, msg Message, deterministic bool) ([]byte, error) {
- u := getMessageMarshalInfo(msg, a)
- ptr := toPointer(&msg)
- if ptr.isNil() {
- // We get here if msg is a typed nil ((*SomeMessage)(nil)),
- // so it satisfies the interface, and msg == nil wouldn't
- // catch it. We don't want crash in this case.
- return b, ErrNil
- }
- return u.marshal(b, ptr, deterministic)
-}
-
-func getMessageMarshalInfo(msg interface{}, a *InternalMessageInfo) *marshalInfo {
- // u := a.marshal, but atomically.
- // We use an atomic here to ensure memory consistency.
- u := atomicLoadMarshalInfo(&a.marshal)
- if u == nil {
- // Get marshal information from type of message.
- t := reflect.ValueOf(msg).Type()
- if t.Kind() != reflect.Ptr {
- panic(fmt.Sprintf("cannot handle non-pointer message type %v", t))
- }
- u = getMarshalInfo(t.Elem())
- // Store it in the cache for later users.
- // a.marshal = u, but atomically.
- atomicStoreMarshalInfo(&a.marshal, u)
- }
- return u
-}
-
-// size is the main function to compute the size of the encoded data of a message.
-// ptr is the pointer to the message.
-func (u *marshalInfo) size(ptr pointer) int {
- if atomic.LoadInt32(&u.initialized) == 0 {
- u.computeMarshalInfo()
- }
-
- // If the message can marshal itself, let it do it, for compatibility.
- // NOTE: This is not efficient.
- if u.hasmarshaler {
- // Uses the message's Size method if available
- if u.hassizer {
- s := ptr.asPointerTo(u.typ).Interface().(Sizer)
- return s.Size()
- }
- // Uses the message's ProtoSize method if available
- if u.hasprotosizer {
- s := ptr.asPointerTo(u.typ).Interface().(ProtoSizer)
- return s.ProtoSize()
- }
-
- m := ptr.asPointerTo(u.typ).Interface().(Marshaler)
- b, _ := m.Marshal()
- return len(b)
- }
-
- n := 0
- for _, f := range u.fields {
- if f.isPointer && ptr.offset(f.field).getPointer().isNil() {
- // nil pointer always marshals to nothing
- continue
- }
- n += f.sizer(ptr.offset(f.field), f.tagsize)
- }
- if u.extensions.IsValid() {
- e := ptr.offset(u.extensions).toExtensions()
- if u.messageset {
- n += u.sizeMessageSet(e)
- } else {
- n += u.sizeExtensions(e)
- }
- }
- if u.v1extensions.IsValid() {
- m := *ptr.offset(u.v1extensions).toOldExtensions()
- n += u.sizeV1Extensions(m)
- }
- if u.bytesExtensions.IsValid() {
- s := *ptr.offset(u.bytesExtensions).toBytes()
- n += len(s)
- }
- if u.unrecognized.IsValid() {
- s := *ptr.offset(u.unrecognized).toBytes()
- n += len(s)
- }
-
- // cache the result for use in marshal
- if u.sizecache.IsValid() {
- atomic.StoreInt32(ptr.offset(u.sizecache).toInt32(), int32(n))
- }
- return n
-}
-
-// cachedsize gets the size from cache. If there is no cache (i.e. message is not generated),
-// fall back to compute the size.
-func (u *marshalInfo) cachedsize(ptr pointer) int {
- if u.sizecache.IsValid() {
- return int(atomic.LoadInt32(ptr.offset(u.sizecache).toInt32()))
- }
- return u.size(ptr)
-}
-
-// marshal is the main function to marshal a message. It takes a byte slice and appends
-// the encoded data to the end of the slice, returns the slice and error (if any).
-// ptr is the pointer to the message.
-// If deterministic is true, map is marshaled in deterministic order.
-func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte, error) {
- if atomic.LoadInt32(&u.initialized) == 0 {
- u.computeMarshalInfo()
- }
-
- // If the message can marshal itself, let it do it, for compatibility.
- // NOTE: This is not efficient.
- if u.hasmarshaler {
- m := ptr.asPointerTo(u.typ).Interface().(Marshaler)
- b1, err := m.Marshal()
- b = append(b, b1...)
- return b, err
- }
-
- var err, errLater error
- // The old marshaler encodes extensions at beginning.
- if u.extensions.IsValid() {
- e := ptr.offset(u.extensions).toExtensions()
- if u.messageset {
- b, err = u.appendMessageSet(b, e, deterministic)
- } else {
- b, err = u.appendExtensions(b, e, deterministic)
- }
- if err != nil {
- return b, err
- }
- }
- if u.v1extensions.IsValid() {
- m := *ptr.offset(u.v1extensions).toOldExtensions()
- b, err = u.appendV1Extensions(b, m, deterministic)
- if err != nil {
- return b, err
- }
- }
- if u.bytesExtensions.IsValid() {
- s := *ptr.offset(u.bytesExtensions).toBytes()
- b = append(b, s...)
- }
- for _, f := range u.fields {
- if f.required {
- if f.isPointer && ptr.offset(f.field).getPointer().isNil() {
- // Required field is not set.
- // We record the error but keep going, to give a complete marshaling.
- if errLater == nil {
- errLater = &RequiredNotSetError{f.name}
- }
- continue
- }
- }
- if f.isPointer && ptr.offset(f.field).getPointer().isNil() {
- // nil pointer always marshals to nothing
- continue
- }
- b, err = f.marshaler(b, ptr.offset(f.field), f.wiretag, deterministic)
- if err != nil {
- if err1, ok := err.(*RequiredNotSetError); ok {
- // Required field in submessage is not set.
- // We record the error but keep going, to give a complete marshaling.
- if errLater == nil {
- errLater = &RequiredNotSetError{f.name + "." + err1.field}
- }
- continue
- }
- if err == errRepeatedHasNil {
- err = errors.New("proto: repeated field " + f.name + " has nil element")
- }
- if err == errInvalidUTF8 {
- if errLater == nil {
- fullName := revProtoTypes[reflect.PtrTo(u.typ)] + "." + f.name
- errLater = &invalidUTF8Error{fullName}
- }
- continue
- }
- return b, err
- }
- }
- if u.unrecognized.IsValid() {
- s := *ptr.offset(u.unrecognized).toBytes()
- b = append(b, s...)
- }
- return b, errLater
-}
-
-// computeMarshalInfo initializes the marshal info.
-func (u *marshalInfo) computeMarshalInfo() {
- u.Lock()
- defer u.Unlock()
- if u.initialized != 0 { // non-atomic read is ok as it is protected by the lock
- return
- }
-
- t := u.typ
- u.unrecognized = invalidField
- u.extensions = invalidField
- u.v1extensions = invalidField
- u.bytesExtensions = invalidField
- u.sizecache = invalidField
- isOneofMessage := false
-
- if reflect.PtrTo(t).Implements(sizerType) {
- u.hassizer = true
- }
- if reflect.PtrTo(t).Implements(protosizerType) {
- u.hasprotosizer = true
- }
- // If the message can marshal itself, let it do it, for compatibility.
- // NOTE: This is not efficient.
- if reflect.PtrTo(t).Implements(marshalerType) {
- u.hasmarshaler = true
- atomic.StoreInt32(&u.initialized, 1)
- return
- }
-
- n := t.NumField()
-
- // deal with XXX fields first
- for i := 0; i < t.NumField(); i++ {
- f := t.Field(i)
- if f.Tag.Get("protobuf_oneof") != "" {
- isOneofMessage = true
- }
- if !strings.HasPrefix(f.Name, "XXX_") {
- continue
- }
- switch f.Name {
- case "XXX_sizecache":
- u.sizecache = toField(&f)
- case "XXX_unrecognized":
- u.unrecognized = toField(&f)
- case "XXX_InternalExtensions":
- u.extensions = toField(&f)
- u.messageset = f.Tag.Get("protobuf_messageset") == "1"
- case "XXX_extensions":
- if f.Type.Kind() == reflect.Map {
- u.v1extensions = toField(&f)
- } else {
- u.bytesExtensions = toField(&f)
- }
- case "XXX_NoUnkeyedLiteral":
- // nothing to do
- default:
- panic("unknown XXX field: " + f.Name)
- }
- n--
- }
-
- // get oneof implementers
- var oneofImplementers []interface{}
- // gogo: isOneofMessage is needed for embedded oneof messages, without a marshaler and unmarshaler
- if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok && isOneofMessage {
- _, _, _, oneofImplementers = m.XXX_OneofFuncs()
- }
-
- // normal fields
- fields := make([]marshalFieldInfo, n) // batch allocation
- u.fields = make([]*marshalFieldInfo, 0, n)
- for i, j := 0, 0; i < t.NumField(); i++ {
- f := t.Field(i)
-
- if strings.HasPrefix(f.Name, "XXX_") {
- continue
- }
- field := &fields[j]
- j++
- field.name = f.Name
- u.fields = append(u.fields, field)
- if f.Tag.Get("protobuf_oneof") != "" {
- field.computeOneofFieldInfo(&f, oneofImplementers)
- continue
- }
- if f.Tag.Get("protobuf") == "" {
- // field has no tag (not in generated message), ignore it
- u.fields = u.fields[:len(u.fields)-1]
- j--
- continue
- }
- field.computeMarshalFieldInfo(&f)
- }
-
- // fields are marshaled in tag order on the wire.
- sort.Sort(byTag(u.fields))
-
- atomic.StoreInt32(&u.initialized, 1)
-}
-
-// helper for sorting fields by tag
-type byTag []*marshalFieldInfo
-
-func (a byTag) Len() int { return len(a) }
-func (a byTag) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a byTag) Less(i, j int) bool { return a[i].wiretag < a[j].wiretag }
-
-// getExtElemInfo returns the information to marshal an extension element.
-// The info it returns is initialized.
-func (u *marshalInfo) getExtElemInfo(desc *ExtensionDesc) *marshalElemInfo {
- // get from cache first
- u.RLock()
- e, ok := u.extElems[desc.Field]
- u.RUnlock()
- if ok {
- return e
- }
-
- t := reflect.TypeOf(desc.ExtensionType) // pointer or slice to basic type or struct
- tags := strings.Split(desc.Tag, ",")
- tag, err := strconv.Atoi(tags[1])
- if err != nil {
- panic("tag is not an integer")
- }
- wt := wiretype(tags[0])
- sizr, marshalr := typeMarshaler(t, tags, false, false)
- e = &marshalElemInfo{
- wiretag: uint64(tag)<<3 | wt,
- tagsize: SizeVarint(uint64(tag) << 3),
- sizer: sizr,
- marshaler: marshalr,
- isptr: t.Kind() == reflect.Ptr,
- }
-
- // update cache
- u.Lock()
- if u.extElems == nil {
- u.extElems = make(map[int32]*marshalElemInfo)
- }
- u.extElems[desc.Field] = e
- u.Unlock()
- return e
-}
-
-// computeMarshalFieldInfo fills up the information to marshal a field.
-func (fi *marshalFieldInfo) computeMarshalFieldInfo(f *reflect.StructField) {
- // parse protobuf tag of the field.
- // tag has format of "bytes,49,opt,name=foo,def=hello!"
- tags := strings.Split(f.Tag.Get("protobuf"), ",")
- if tags[0] == "" {
- return
- }
- tag, err := strconv.Atoi(tags[1])
- if err != nil {
- panic("tag is not an integer")
- }
- wt := wiretype(tags[0])
- if tags[2] == "req" {
- fi.required = true
- }
- fi.setTag(f, tag, wt)
- fi.setMarshaler(f, tags)
-}
-
-func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofImplementers []interface{}) {
- fi.field = toField(f)
- fi.wiretag = math.MaxInt32 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire.
- fi.isPointer = true
- fi.sizer, fi.marshaler = makeOneOfMarshaler(fi, f)
- fi.oneofElems = make(map[reflect.Type]*marshalElemInfo)
-
- ityp := f.Type // interface type
- for _, o := range oneofImplementers {
- t := reflect.TypeOf(o)
- if !t.Implements(ityp) {
- continue
- }
- sf := t.Elem().Field(0) // oneof implementer is a struct with a single field
- tags := strings.Split(sf.Tag.Get("protobuf"), ",")
- tag, err := strconv.Atoi(tags[1])
- if err != nil {
- panic("tag is not an integer")
- }
- wt := wiretype(tags[0])
- sizr, marshalr := typeMarshaler(sf.Type, tags, false, true) // oneof should not omit any zero value
- fi.oneofElems[t.Elem()] = &marshalElemInfo{
- wiretag: uint64(tag)<<3 | wt,
- tagsize: SizeVarint(uint64(tag) << 3),
- sizer: sizr,
- marshaler: marshalr,
- }
- }
-}
-
-type oneofMessage interface {
- XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{})
-}
-
-// wiretype returns the wire encoding of the type.
-func wiretype(encoding string) uint64 {
- switch encoding {
- case "fixed32":
- return WireFixed32
- case "fixed64":
- return WireFixed64
- case "varint", "zigzag32", "zigzag64":
- return WireVarint
- case "bytes":
- return WireBytes
- case "group":
- return WireStartGroup
- }
- panic("unknown wire type " + encoding)
-}
-
-// setTag fills up the tag (in wire format) and its size in the info of a field.
-func (fi *marshalFieldInfo) setTag(f *reflect.StructField, tag int, wt uint64) {
- fi.field = toField(f)
- fi.wiretag = uint64(tag)<<3 | wt
- fi.tagsize = SizeVarint(uint64(tag) << 3)
-}
-
-// setMarshaler fills up the sizer and marshaler in the info of a field.
-func (fi *marshalFieldInfo) setMarshaler(f *reflect.StructField, tags []string) {
- switch f.Type.Kind() {
- case reflect.Map:
- // map field
- fi.isPointer = true
- fi.sizer, fi.marshaler = makeMapMarshaler(f)
- return
- case reflect.Ptr, reflect.Slice:
- fi.isPointer = true
- }
- fi.sizer, fi.marshaler = typeMarshaler(f.Type, tags, true, false)
-}
-
-// typeMarshaler returns the sizer and marshaler of a given field.
-// t is the type of the field.
-// tags is the generated "protobuf" tag of the field.
-// If nozero is true, zero value is not marshaled to the wire.
-// If oneof is true, it is a oneof field.
-func typeMarshaler(t reflect.Type, tags []string, nozero, oneof bool) (sizer, marshaler) {
- encoding := tags[0]
-
- pointer := false
- slice := false
- if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 {
- slice = true
- t = t.Elem()
- }
- if t.Kind() == reflect.Ptr {
- pointer = true
- t = t.Elem()
- }
-
- packed := false
- proto3 := false
- ctype := false
- isTime := false
- isDuration := false
- isWktPointer := false
- validateUTF8 := true
- for i := 2; i < len(tags); i++ {
- if tags[i] == "packed" {
- packed = true
- }
- if tags[i] == "proto3" {
- proto3 = true
- }
- if strings.HasPrefix(tags[i], "customtype=") {
- ctype = true
- }
- if tags[i] == "stdtime" {
- isTime = true
- }
- if tags[i] == "stdduration" {
- isDuration = true
- }
- if tags[i] == "wktptr" {
- isWktPointer = true
- }
- }
- validateUTF8 = validateUTF8 && proto3
- if !proto3 && !pointer && !slice {
- nozero = false
- }
-
- if ctype {
- if reflect.PtrTo(t).Implements(customType) {
- if slice {
- return makeMessageRefSliceMarshaler(getMarshalInfo(t))
- }
- if pointer {
- return makeCustomPtrMarshaler(getMarshalInfo(t))
- }
- return makeCustomMarshaler(getMarshalInfo(t))
- } else {
- panic(fmt.Sprintf("custom type: type: %v, does not implement the proto.custom interface", t))
- }
- }
-
- if isTime {
- if pointer {
- if slice {
- return makeTimePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeTimePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeTimeSliceMarshaler(getMarshalInfo(t))
- }
- return makeTimeMarshaler(getMarshalInfo(t))
- }
-
- if isDuration {
- if pointer {
- if slice {
- return makeDurationPtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeDurationPtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeDurationSliceMarshaler(getMarshalInfo(t))
- }
- return makeDurationMarshaler(getMarshalInfo(t))
- }
-
- if isWktPointer {
- switch t.Kind() {
- case reflect.Float64:
- if pointer {
- if slice {
- return makeStdDoubleValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdDoubleValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdDoubleValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdDoubleValueMarshaler(getMarshalInfo(t))
- case reflect.Float32:
- if pointer {
- if slice {
- return makeStdFloatValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdFloatValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdFloatValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdFloatValueMarshaler(getMarshalInfo(t))
- case reflect.Int64:
- if pointer {
- if slice {
- return makeStdInt64ValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdInt64ValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdInt64ValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdInt64ValueMarshaler(getMarshalInfo(t))
- case reflect.Uint64:
- if pointer {
- if slice {
- return makeStdUInt64ValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdUInt64ValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdUInt64ValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdUInt64ValueMarshaler(getMarshalInfo(t))
- case reflect.Int32:
- if pointer {
- if slice {
- return makeStdInt32ValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdInt32ValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdInt32ValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdInt32ValueMarshaler(getMarshalInfo(t))
- case reflect.Uint32:
- if pointer {
- if slice {
- return makeStdUInt32ValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdUInt32ValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdUInt32ValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdUInt32ValueMarshaler(getMarshalInfo(t))
- case reflect.Bool:
- if pointer {
- if slice {
- return makeStdBoolValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdBoolValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdBoolValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdBoolValueMarshaler(getMarshalInfo(t))
- case reflect.String:
- if pointer {
- if slice {
- return makeStdStringValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdStringValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdStringValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdStringValueMarshaler(getMarshalInfo(t))
- case uint8SliceType:
- if pointer {
- if slice {
- return makeStdBytesValuePtrSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdBytesValuePtrMarshaler(getMarshalInfo(t))
- }
- if slice {
- return makeStdBytesValueSliceMarshaler(getMarshalInfo(t))
- }
- return makeStdBytesValueMarshaler(getMarshalInfo(t))
- default:
- panic(fmt.Sprintf("unknown wktpointer type %#v", t))
- }
- }
-
- switch t.Kind() {
- case reflect.Bool:
- if pointer {
- return sizeBoolPtr, appendBoolPtr
- }
- if slice {
- if packed {
- return sizeBoolPackedSlice, appendBoolPackedSlice
- }
- return sizeBoolSlice, appendBoolSlice
- }
- if nozero {
- return sizeBoolValueNoZero, appendBoolValueNoZero
- }
- return sizeBoolValue, appendBoolValue
- case reflect.Uint32:
- switch encoding {
- case "fixed32":
- if pointer {
- return sizeFixed32Ptr, appendFixed32Ptr
- }
- if slice {
- if packed {
- return sizeFixed32PackedSlice, appendFixed32PackedSlice
- }
- return sizeFixed32Slice, appendFixed32Slice
- }
- if nozero {
- return sizeFixed32ValueNoZero, appendFixed32ValueNoZero
- }
- return sizeFixed32Value, appendFixed32Value
- case "varint":
- if pointer {
- return sizeVarint32Ptr, appendVarint32Ptr
- }
- if slice {
- if packed {
- return sizeVarint32PackedSlice, appendVarint32PackedSlice
- }
- return sizeVarint32Slice, appendVarint32Slice
- }
- if nozero {
- return sizeVarint32ValueNoZero, appendVarint32ValueNoZero
- }
- return sizeVarint32Value, appendVarint32Value
- }
- case reflect.Int32:
- switch encoding {
- case "fixed32":
- if pointer {
- return sizeFixedS32Ptr, appendFixedS32Ptr
- }
- if slice {
- if packed {
- return sizeFixedS32PackedSlice, appendFixedS32PackedSlice
- }
- return sizeFixedS32Slice, appendFixedS32Slice
- }
- if nozero {
- return sizeFixedS32ValueNoZero, appendFixedS32ValueNoZero
- }
- return sizeFixedS32Value, appendFixedS32Value
- case "varint":
- if pointer {
- return sizeVarintS32Ptr, appendVarintS32Ptr
- }
- if slice {
- if packed {
- return sizeVarintS32PackedSlice, appendVarintS32PackedSlice
- }
- return sizeVarintS32Slice, appendVarintS32Slice
- }
- if nozero {
- return sizeVarintS32ValueNoZero, appendVarintS32ValueNoZero
- }
- return sizeVarintS32Value, appendVarintS32Value
- case "zigzag32":
- if pointer {
- return sizeZigzag32Ptr, appendZigzag32Ptr
- }
- if slice {
- if packed {
- return sizeZigzag32PackedSlice, appendZigzag32PackedSlice
- }
- return sizeZigzag32Slice, appendZigzag32Slice
- }
- if nozero {
- return sizeZigzag32ValueNoZero, appendZigzag32ValueNoZero
- }
- return sizeZigzag32Value, appendZigzag32Value
- }
- case reflect.Uint64:
- switch encoding {
- case "fixed64":
- if pointer {
- return sizeFixed64Ptr, appendFixed64Ptr
- }
- if slice {
- if packed {
- return sizeFixed64PackedSlice, appendFixed64PackedSlice
- }
- return sizeFixed64Slice, appendFixed64Slice
- }
- if nozero {
- return sizeFixed64ValueNoZero, appendFixed64ValueNoZero
- }
- return sizeFixed64Value, appendFixed64Value
- case "varint":
- if pointer {
- return sizeVarint64Ptr, appendVarint64Ptr
- }
- if slice {
- if packed {
- return sizeVarint64PackedSlice, appendVarint64PackedSlice
- }
- return sizeVarint64Slice, appendVarint64Slice
- }
- if nozero {
- return sizeVarint64ValueNoZero, appendVarint64ValueNoZero
- }
- return sizeVarint64Value, appendVarint64Value
- }
- case reflect.Int64:
- switch encoding {
- case "fixed64":
- if pointer {
- return sizeFixedS64Ptr, appendFixedS64Ptr
- }
- if slice {
- if packed {
- return sizeFixedS64PackedSlice, appendFixedS64PackedSlice
- }
- return sizeFixedS64Slice, appendFixedS64Slice
- }
- if nozero {
- return sizeFixedS64ValueNoZero, appendFixedS64ValueNoZero
- }
- return sizeFixedS64Value, appendFixedS64Value
- case "varint":
- if pointer {
- return sizeVarintS64Ptr, appendVarintS64Ptr
- }
- if slice {
- if packed {
- return sizeVarintS64PackedSlice, appendVarintS64PackedSlice
- }
- return sizeVarintS64Slice, appendVarintS64Slice
- }
- if nozero {
- return sizeVarintS64ValueNoZero, appendVarintS64ValueNoZero
- }
- return sizeVarintS64Value, appendVarintS64Value
- case "zigzag64":
- if pointer {
- return sizeZigzag64Ptr, appendZigzag64Ptr
- }
- if slice {
- if packed {
- return sizeZigzag64PackedSlice, appendZigzag64PackedSlice
- }
- return sizeZigzag64Slice, appendZigzag64Slice
- }
- if nozero {
- return sizeZigzag64ValueNoZero, appendZigzag64ValueNoZero
- }
- return sizeZigzag64Value, appendZigzag64Value
- }
- case reflect.Float32:
- if pointer {
- return sizeFloat32Ptr, appendFloat32Ptr
- }
- if slice {
- if packed {
- return sizeFloat32PackedSlice, appendFloat32PackedSlice
- }
- return sizeFloat32Slice, appendFloat32Slice
- }
- if nozero {
- return sizeFloat32ValueNoZero, appendFloat32ValueNoZero
- }
- return sizeFloat32Value, appendFloat32Value
- case reflect.Float64:
- if pointer {
- return sizeFloat64Ptr, appendFloat64Ptr
- }
- if slice {
- if packed {
- return sizeFloat64PackedSlice, appendFloat64PackedSlice
- }
- return sizeFloat64Slice, appendFloat64Slice
- }
- if nozero {
- return sizeFloat64ValueNoZero, appendFloat64ValueNoZero
- }
- return sizeFloat64Value, appendFloat64Value
- case reflect.String:
- if validateUTF8 {
- if pointer {
- return sizeStringPtr, appendUTF8StringPtr
- }
- if slice {
- return sizeStringSlice, appendUTF8StringSlice
- }
- if nozero {
- return sizeStringValueNoZero, appendUTF8StringValueNoZero
- }
- return sizeStringValue, appendUTF8StringValue
- }
- if pointer {
- return sizeStringPtr, appendStringPtr
- }
- if slice {
- return sizeStringSlice, appendStringSlice
- }
- if nozero {
- return sizeStringValueNoZero, appendStringValueNoZero
- }
- return sizeStringValue, appendStringValue
- case reflect.Slice:
- if slice {
- return sizeBytesSlice, appendBytesSlice
- }
- if oneof {
- // Oneof bytes field may also have "proto3" tag.
- // We want to marshal it as a oneof field. Do this
- // check before the proto3 check.
- return sizeBytesOneof, appendBytesOneof
- }
- if proto3 {
- return sizeBytes3, appendBytes3
- }
- return sizeBytes, appendBytes
- case reflect.Struct:
- switch encoding {
- case "group":
- if slice {
- return makeGroupSliceMarshaler(getMarshalInfo(t))
- }
- return makeGroupMarshaler(getMarshalInfo(t))
- case "bytes":
- if pointer {
- if slice {
- return makeMessageSliceMarshaler(getMarshalInfo(t))
- }
- return makeMessageMarshaler(getMarshalInfo(t))
- } else {
- if slice {
- return makeMessageRefSliceMarshaler(getMarshalInfo(t))
- }
- return makeMessageRefMarshaler(getMarshalInfo(t))
- }
- }
- }
- panic(fmt.Sprintf("unknown or mismatched type: type: %v, wire type: %v", t, encoding))
-}
-
-// Below are functions to size/marshal a specific type of a field.
-// They are stored in the field's info, and called by function pointers.
-// They have type sizer or marshaler.
-
-func sizeFixed32Value(_ pointer, tagsize int) int {
- return 4 + tagsize
-}
-func sizeFixed32ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toUint32()
- if v == 0 {
- return 0
- }
- return 4 + tagsize
-}
-func sizeFixed32Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toUint32Ptr()
- if p == nil {
- return 0
- }
- return 4 + tagsize
-}
-func sizeFixed32Slice(ptr pointer, tagsize int) int {
- s := *ptr.toUint32Slice()
- return (4 + tagsize) * len(s)
-}
-func sizeFixed32PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toUint32Slice()
- if len(s) == 0 {
- return 0
- }
- return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize
-}
-func sizeFixedS32Value(_ pointer, tagsize int) int {
- return 4 + tagsize
-}
-func sizeFixedS32ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toInt32()
- if v == 0 {
- return 0
- }
- return 4 + tagsize
-}
-func sizeFixedS32Ptr(ptr pointer, tagsize int) int {
- p := ptr.getInt32Ptr()
- if p == nil {
- return 0
- }
- return 4 + tagsize
-}
-func sizeFixedS32Slice(ptr pointer, tagsize int) int {
- s := ptr.getInt32Slice()
- return (4 + tagsize) * len(s)
-}
-func sizeFixedS32PackedSlice(ptr pointer, tagsize int) int {
- s := ptr.getInt32Slice()
- if len(s) == 0 {
- return 0
- }
- return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize
-}
-func sizeFloat32Value(_ pointer, tagsize int) int {
- return 4 + tagsize
-}
-func sizeFloat32ValueNoZero(ptr pointer, tagsize int) int {
- v := math.Float32bits(*ptr.toFloat32())
- if v == 0 {
- return 0
- }
- return 4 + tagsize
-}
-func sizeFloat32Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toFloat32Ptr()
- if p == nil {
- return 0
- }
- return 4 + tagsize
-}
-func sizeFloat32Slice(ptr pointer, tagsize int) int {
- s := *ptr.toFloat32Slice()
- return (4 + tagsize) * len(s)
-}
-func sizeFloat32PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toFloat32Slice()
- if len(s) == 0 {
- return 0
- }
- return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize
-}
-func sizeFixed64Value(_ pointer, tagsize int) int {
- return 8 + tagsize
-}
-func sizeFixed64ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toUint64()
- if v == 0 {
- return 0
- }
- return 8 + tagsize
-}
-func sizeFixed64Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toUint64Ptr()
- if p == nil {
- return 0
- }
- return 8 + tagsize
-}
-func sizeFixed64Slice(ptr pointer, tagsize int) int {
- s := *ptr.toUint64Slice()
- return (8 + tagsize) * len(s)
-}
-func sizeFixed64PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toUint64Slice()
- if len(s) == 0 {
- return 0
- }
- return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize
-}
-func sizeFixedS64Value(_ pointer, tagsize int) int {
- return 8 + tagsize
-}
-func sizeFixedS64ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toInt64()
- if v == 0 {
- return 0
- }
- return 8 + tagsize
-}
-func sizeFixedS64Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toInt64Ptr()
- if p == nil {
- return 0
- }
- return 8 + tagsize
-}
-func sizeFixedS64Slice(ptr pointer, tagsize int) int {
- s := *ptr.toInt64Slice()
- return (8 + tagsize) * len(s)
-}
-func sizeFixedS64PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toInt64Slice()
- if len(s) == 0 {
- return 0
- }
- return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize
-}
-func sizeFloat64Value(_ pointer, tagsize int) int {
- return 8 + tagsize
-}
-func sizeFloat64ValueNoZero(ptr pointer, tagsize int) int {
- v := math.Float64bits(*ptr.toFloat64())
- if v == 0 {
- return 0
- }
- return 8 + tagsize
-}
-func sizeFloat64Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toFloat64Ptr()
- if p == nil {
- return 0
- }
- return 8 + tagsize
-}
-func sizeFloat64Slice(ptr pointer, tagsize int) int {
- s := *ptr.toFloat64Slice()
- return (8 + tagsize) * len(s)
-}
-func sizeFloat64PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toFloat64Slice()
- if len(s) == 0 {
- return 0
- }
- return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize
-}
-func sizeVarint32Value(ptr pointer, tagsize int) int {
- v := *ptr.toUint32()
- return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarint32ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toUint32()
- if v == 0 {
- return 0
- }
- return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarint32Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toUint32Ptr()
- if p == nil {
- return 0
- }
- return SizeVarint(uint64(*p)) + tagsize
-}
-func sizeVarint32Slice(ptr pointer, tagsize int) int {
- s := *ptr.toUint32Slice()
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v)) + tagsize
- }
- return n
-}
-func sizeVarint32PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toUint32Slice()
- if len(s) == 0 {
- return 0
- }
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v))
- }
- return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeVarintS32Value(ptr pointer, tagsize int) int {
- v := *ptr.toInt32()
- return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS32ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toInt32()
- if v == 0 {
- return 0
- }
- return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS32Ptr(ptr pointer, tagsize int) int {
- p := ptr.getInt32Ptr()
- if p == nil {
- return 0
- }
- return SizeVarint(uint64(*p)) + tagsize
-}
-func sizeVarintS32Slice(ptr pointer, tagsize int) int {
- s := ptr.getInt32Slice()
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v)) + tagsize
- }
- return n
-}
-func sizeVarintS32PackedSlice(ptr pointer, tagsize int) int {
- s := ptr.getInt32Slice()
- if len(s) == 0 {
- return 0
- }
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v))
- }
- return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeVarint64Value(ptr pointer, tagsize int) int {
- v := *ptr.toUint64()
- return SizeVarint(v) + tagsize
-}
-func sizeVarint64ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toUint64()
- if v == 0 {
- return 0
- }
- return SizeVarint(v) + tagsize
-}
-func sizeVarint64Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toUint64Ptr()
- if p == nil {
- return 0
- }
- return SizeVarint(*p) + tagsize
-}
-func sizeVarint64Slice(ptr pointer, tagsize int) int {
- s := *ptr.toUint64Slice()
- n := 0
- for _, v := range s {
- n += SizeVarint(v) + tagsize
- }
- return n
-}
-func sizeVarint64PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toUint64Slice()
- if len(s) == 0 {
- return 0
- }
- n := 0
- for _, v := range s {
- n += SizeVarint(v)
- }
- return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeVarintS64Value(ptr pointer, tagsize int) int {
- v := *ptr.toInt64()
- return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS64ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toInt64()
- if v == 0 {
- return 0
- }
- return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS64Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toInt64Ptr()
- if p == nil {
- return 0
- }
- return SizeVarint(uint64(*p)) + tagsize
-}
-func sizeVarintS64Slice(ptr pointer, tagsize int) int {
- s := *ptr.toInt64Slice()
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v)) + tagsize
- }
- return n
-}
-func sizeVarintS64PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toInt64Slice()
- if len(s) == 0 {
- return 0
- }
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v))
- }
- return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeZigzag32Value(ptr pointer, tagsize int) int {
- v := *ptr.toInt32()
- return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-}
-func sizeZigzag32ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toInt32()
- if v == 0 {
- return 0
- }
- return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-}
-func sizeZigzag32Ptr(ptr pointer, tagsize int) int {
- p := ptr.getInt32Ptr()
- if p == nil {
- return 0
- }
- v := *p
- return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-}
-func sizeZigzag32Slice(ptr pointer, tagsize int) int {
- s := ptr.getInt32Slice()
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
- }
- return n
-}
-func sizeZigzag32PackedSlice(ptr pointer, tagsize int) int {
- s := ptr.getInt32Slice()
- if len(s) == 0 {
- return 0
- }
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31))))
- }
- return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeZigzag64Value(ptr pointer, tagsize int) int {
- v := *ptr.toInt64()
- return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-}
-func sizeZigzag64ValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toInt64()
- if v == 0 {
- return 0
- }
- return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-}
-func sizeZigzag64Ptr(ptr pointer, tagsize int) int {
- p := *ptr.toInt64Ptr()
- if p == nil {
- return 0
- }
- v := *p
- return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-}
-func sizeZigzag64Slice(ptr pointer, tagsize int) int {
- s := *ptr.toInt64Slice()
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
- }
- return n
-}
-func sizeZigzag64PackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toInt64Slice()
- if len(s) == 0 {
- return 0
- }
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v<<1) ^ uint64((int64(v) >> 63)))
- }
- return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeBoolValue(_ pointer, tagsize int) int {
- return 1 + tagsize
-}
-func sizeBoolValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toBool()
- if !v {
- return 0
- }
- return 1 + tagsize
-}
-func sizeBoolPtr(ptr pointer, tagsize int) int {
- p := *ptr.toBoolPtr()
- if p == nil {
- return 0
- }
- return 1 + tagsize
-}
-func sizeBoolSlice(ptr pointer, tagsize int) int {
- s := *ptr.toBoolSlice()
- return (1 + tagsize) * len(s)
-}
-func sizeBoolPackedSlice(ptr pointer, tagsize int) int {
- s := *ptr.toBoolSlice()
- if len(s) == 0 {
- return 0
- }
- return len(s) + SizeVarint(uint64(len(s))) + tagsize
-}
-func sizeStringValue(ptr pointer, tagsize int) int {
- v := *ptr.toString()
- return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeStringValueNoZero(ptr pointer, tagsize int) int {
- v := *ptr.toString()
- if v == "" {
- return 0
- }
- return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeStringPtr(ptr pointer, tagsize int) int {
- p := *ptr.toStringPtr()
- if p == nil {
- return 0
- }
- v := *p
- return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeStringSlice(ptr pointer, tagsize int) int {
- s := *ptr.toStringSlice()
- n := 0
- for _, v := range s {
- n += len(v) + SizeVarint(uint64(len(v))) + tagsize
- }
- return n
-}
-func sizeBytes(ptr pointer, tagsize int) int {
- v := *ptr.toBytes()
- if v == nil {
- return 0
- }
- return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeBytes3(ptr pointer, tagsize int) int {
- v := *ptr.toBytes()
- if len(v) == 0 {
- return 0
- }
- return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeBytesOneof(ptr pointer, tagsize int) int {
- v := *ptr.toBytes()
- return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeBytesSlice(ptr pointer, tagsize int) int {
- s := *ptr.toBytesSlice()
- n := 0
- for _, v := range s {
- n += len(v) + SizeVarint(uint64(len(v))) + tagsize
- }
- return n
-}
-
-// appendFixed32 appends an encoded fixed32 to b.
-func appendFixed32(b []byte, v uint32) []byte {
- b = append(b,
- byte(v),
- byte(v>>8),
- byte(v>>16),
- byte(v>>24))
- return b
-}
-
-// appendFixed64 appends an encoded fixed64 to b.
-func appendFixed64(b []byte, v uint64) []byte {
- b = append(b,
- byte(v),
- byte(v>>8),
- byte(v>>16),
- byte(v>>24),
- byte(v>>32),
- byte(v>>40),
- byte(v>>48),
- byte(v>>56))
- return b
-}
-
-// appendVarint appends an encoded varint to b.
-func appendVarint(b []byte, v uint64) []byte {
- // TODO: make 1-byte (maybe 2-byte) case inline-able, once we
- // have non-leaf inliner.
- switch {
- case v < 1<<7:
- b = append(b, byte(v))
- case v < 1<<14:
- b = append(b,
- byte(v&0x7f|0x80),
- byte(v>>7))
- case v < 1<<21:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte(v>>14))
- case v < 1<<28:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte(v>>21))
- case v < 1<<35:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte((v>>21)&0x7f|0x80),
- byte(v>>28))
- case v < 1<<42:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte((v>>21)&0x7f|0x80),
- byte((v>>28)&0x7f|0x80),
- byte(v>>35))
- case v < 1<<49:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte((v>>21)&0x7f|0x80),
- byte((v>>28)&0x7f|0x80),
- byte((v>>35)&0x7f|0x80),
- byte(v>>42))
- case v < 1<<56:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte((v>>21)&0x7f|0x80),
- byte((v>>28)&0x7f|0x80),
- byte((v>>35)&0x7f|0x80),
- byte((v>>42)&0x7f|0x80),
- byte(v>>49))
- case v < 1<<63:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte((v>>21)&0x7f|0x80),
- byte((v>>28)&0x7f|0x80),
- byte((v>>35)&0x7f|0x80),
- byte((v>>42)&0x7f|0x80),
- byte((v>>49)&0x7f|0x80),
- byte(v>>56))
- default:
- b = append(b,
- byte(v&0x7f|0x80),
- byte((v>>7)&0x7f|0x80),
- byte((v>>14)&0x7f|0x80),
- byte((v>>21)&0x7f|0x80),
- byte((v>>28)&0x7f|0x80),
- byte((v>>35)&0x7f|0x80),
- byte((v>>42)&0x7f|0x80),
- byte((v>>49)&0x7f|0x80),
- byte((v>>56)&0x7f|0x80),
- 1)
- }
- return b
-}
-
-func appendFixed32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint32()
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, v)
- return b, nil
-}
-func appendFixed32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint32()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, v)
- return b, nil
-}
-func appendFixed32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toUint32Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, *p)
- return b, nil
-}
-func appendFixed32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint32Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, v)
- }
- return b, nil
-}
-func appendFixed32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint32Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(4*len(s)))
- for _, v := range s {
- b = appendFixed32(b, v)
- }
- return b, nil
-}
-func appendFixedS32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt32()
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, uint32(v))
- return b, nil
-}
-func appendFixedS32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt32()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, uint32(v))
- return b, nil
-}
-func appendFixedS32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := ptr.getInt32Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, uint32(*p))
- return b, nil
-}
-func appendFixedS32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := ptr.getInt32Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, uint32(v))
- }
- return b, nil
-}
-func appendFixedS32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := ptr.getInt32Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(4*len(s)))
- for _, v := range s {
- b = appendFixed32(b, uint32(v))
- }
- return b, nil
-}
-func appendFloat32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := math.Float32bits(*ptr.toFloat32())
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, v)
- return b, nil
-}
-func appendFloat32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := math.Float32bits(*ptr.toFloat32())
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, v)
- return b, nil
-}
-func appendFloat32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toFloat32Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, math.Float32bits(*p))
- return b, nil
-}
-func appendFloat32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toFloat32Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendFixed32(b, math.Float32bits(v))
- }
- return b, nil
-}
-func appendFloat32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toFloat32Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(4*len(s)))
- for _, v := range s {
- b = appendFixed32(b, math.Float32bits(v))
- }
- return b, nil
-}
-func appendFixed64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint64()
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, v)
- return b, nil
-}
-func appendFixed64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint64()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, v)
- return b, nil
-}
-func appendFixed64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toUint64Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, *p)
- return b, nil
-}
-func appendFixed64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint64Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, v)
- }
- return b, nil
-}
-func appendFixed64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint64Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(8*len(s)))
- for _, v := range s {
- b = appendFixed64(b, v)
- }
- return b, nil
-}
-func appendFixedS64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt64()
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, uint64(v))
- return b, nil
-}
-func appendFixedS64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt64()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, uint64(v))
- return b, nil
-}
-func appendFixedS64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toInt64Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, uint64(*p))
- return b, nil
-}
-func appendFixedS64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toInt64Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, uint64(v))
- }
- return b, nil
-}
-func appendFixedS64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toInt64Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(8*len(s)))
- for _, v := range s {
- b = appendFixed64(b, uint64(v))
- }
- return b, nil
-}
-func appendFloat64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := math.Float64bits(*ptr.toFloat64())
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, v)
- return b, nil
-}
-func appendFloat64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := math.Float64bits(*ptr.toFloat64())
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, v)
- return b, nil
-}
-func appendFloat64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toFloat64Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, math.Float64bits(*p))
- return b, nil
-}
-func appendFloat64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toFloat64Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendFixed64(b, math.Float64bits(v))
- }
- return b, nil
-}
-func appendFloat64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toFloat64Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(8*len(s)))
- for _, v := range s {
- b = appendFixed64(b, math.Float64bits(v))
- }
- return b, nil
-}
-func appendVarint32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint32()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- return b, nil
-}
-func appendVarint32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint32()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- return b, nil
-}
-func appendVarint32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toUint32Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(*p))
- return b, nil
-}
-func appendVarint32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint32Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- }
- return b, nil
-}
-func appendVarint32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint32Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- // compute size
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v))
- }
- b = appendVarint(b, uint64(n))
- for _, v := range s {
- b = appendVarint(b, uint64(v))
- }
- return b, nil
-}
-func appendVarintS32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt32()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- return b, nil
-}
-func appendVarintS32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt32()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- return b, nil
-}
-func appendVarintS32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := ptr.getInt32Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(*p))
- return b, nil
-}
-func appendVarintS32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := ptr.getInt32Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- }
- return b, nil
-}
-func appendVarintS32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := ptr.getInt32Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- // compute size
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v))
- }
- b = appendVarint(b, uint64(n))
- for _, v := range s {
- b = appendVarint(b, uint64(v))
- }
- return b, nil
-}
-func appendVarint64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint64()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, v)
- return b, nil
-}
-func appendVarint64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toUint64()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, v)
- return b, nil
-}
-func appendVarint64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toUint64Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, *p)
- return b, nil
-}
-func appendVarint64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint64Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, v)
- }
- return b, nil
-}
-func appendVarint64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toUint64Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- // compute size
- n := 0
- for _, v := range s {
- n += SizeVarint(v)
- }
- b = appendVarint(b, uint64(n))
- for _, v := range s {
- b = appendVarint(b, v)
- }
- return b, nil
-}
-func appendVarintS64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt64()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- return b, nil
-}
-func appendVarintS64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt64()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- return b, nil
-}
-func appendVarintS64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toInt64Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(*p))
- return b, nil
-}
-func appendVarintS64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toInt64Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v))
- }
- return b, nil
-}
-func appendVarintS64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toInt64Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- // compute size
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v))
- }
- b = appendVarint(b, uint64(n))
- for _, v := range s {
- b = appendVarint(b, uint64(v))
- }
- return b, nil
-}
-func appendZigzag32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt32()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
- return b, nil
-}
-func appendZigzag32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt32()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
- return b, nil
-}
-func appendZigzag32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := ptr.getInt32Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- v := *p
- b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
- return b, nil
-}
-func appendZigzag32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := ptr.getInt32Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
- }
- return b, nil
-}
-func appendZigzag32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := ptr.getInt32Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- // compute size
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31))))
- }
- b = appendVarint(b, uint64(n))
- for _, v := range s {
- b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
- }
- return b, nil
-}
-func appendZigzag64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt64()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
- return b, nil
-}
-func appendZigzag64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toInt64()
- if v == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
- return b, nil
-}
-func appendZigzag64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toInt64Ptr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- v := *p
- b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
- return b, nil
-}
-func appendZigzag64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toInt64Slice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
- }
- return b, nil
-}
-func appendZigzag64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toInt64Slice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- // compute size
- n := 0
- for _, v := range s {
- n += SizeVarint(uint64(v<<1) ^ uint64((int64(v) >> 63)))
- }
- b = appendVarint(b, uint64(n))
- for _, v := range s {
- b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
- }
- return b, nil
-}
-func appendBoolValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toBool()
- b = appendVarint(b, wiretag)
- if v {
- b = append(b, 1)
- } else {
- b = append(b, 0)
- }
- return b, nil
-}
-func appendBoolValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toBool()
- if !v {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = append(b, 1)
- return b, nil
-}
-
-func appendBoolPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toBoolPtr()
- if p == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- if *p {
- b = append(b, 1)
- } else {
- b = append(b, 0)
- }
- return b, nil
-}
-func appendBoolSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toBoolSlice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- if v {
- b = append(b, 1)
- } else {
- b = append(b, 0)
- }
- }
- return b, nil
-}
-func appendBoolPackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toBoolSlice()
- if len(s) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag&^7|WireBytes)
- b = appendVarint(b, uint64(len(s)))
- for _, v := range s {
- if v {
- b = append(b, 1)
- } else {
- b = append(b, 0)
- }
- }
- return b, nil
-}
-func appendStringValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toString()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- return b, nil
-}
-func appendStringValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toString()
- if v == "" {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- return b, nil
-}
-func appendStringPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- p := *ptr.toStringPtr()
- if p == nil {
- return b, nil
- }
- v := *p
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- return b, nil
-}
-func appendStringSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toStringSlice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- }
- return b, nil
-}
-func appendUTF8StringValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- var invalidUTF8 bool
- v := *ptr.toString()
- if !utf8.ValidString(v) {
- invalidUTF8 = true
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- if invalidUTF8 {
- return b, errInvalidUTF8
- }
- return b, nil
-}
-func appendUTF8StringValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- var invalidUTF8 bool
- v := *ptr.toString()
- if v == "" {
- return b, nil
- }
- if !utf8.ValidString(v) {
- invalidUTF8 = true
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- if invalidUTF8 {
- return b, errInvalidUTF8
- }
- return b, nil
-}
-func appendUTF8StringPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- var invalidUTF8 bool
- p := *ptr.toStringPtr()
- if p == nil {
- return b, nil
- }
- v := *p
- if !utf8.ValidString(v) {
- invalidUTF8 = true
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- if invalidUTF8 {
- return b, errInvalidUTF8
- }
- return b, nil
-}
-func appendUTF8StringSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- var invalidUTF8 bool
- s := *ptr.toStringSlice()
- for _, v := range s {
- if !utf8.ValidString(v) {
- invalidUTF8 = true
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- }
- if invalidUTF8 {
- return b, errInvalidUTF8
- }
- return b, nil
-}
-func appendBytes(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toBytes()
- if v == nil {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- return b, nil
-}
-func appendBytes3(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toBytes()
- if len(v) == 0 {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- return b, nil
-}
-func appendBytesOneof(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- v := *ptr.toBytes()
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- return b, nil
-}
-func appendBytesSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
- s := *ptr.toBytesSlice()
- for _, v := range s {
- b = appendVarint(b, wiretag)
- b = appendVarint(b, uint64(len(v)))
- b = append(b, v...)
- }
- return b, nil
-}
-
-// makeGroupMarshaler returns the sizer and marshaler for a group.
-// u is the marshal info of the underlying message.
-func makeGroupMarshaler(u *marshalInfo) (sizer, marshaler) {
- return func(ptr pointer, tagsize int) int {
- p := ptr.getPointer()
- if p.isNil() {
- return 0
- }
- return u.size(p) + 2*tagsize
- },
- func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
- p := ptr.getPointer()
- if p.isNil() {
- return b, nil
- }
- var err error
- b = appendVarint(b, wiretag) // start group
- b, err = u.marshal(b, p, deterministic)
- b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group
- return b, err
- }
-}
-
-// makeGroupSliceMarshaler returns the sizer and marshaler for a group slice.
-// u is the marshal info of the underlying message.
-func makeGroupSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
- return func(ptr pointer, tagsize int) int {
- s := ptr.getPointerSlice()
- n := 0
- for _, v := range s {
- if v.isNil() {
- continue
- }
- n += u.size(v) + 2*tagsize
- }
- return n
- },
- func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
- s := ptr.getPointerSlice()
- var err error
- var nerr nonFatal
- for _, v := range s {
- if v.isNil() {
- return b, errRepeatedHasNil
- }
- b = appendVarint(b, wiretag) // start group
- b, err = u.marshal(b, v, deterministic)
- b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group
- if !nerr.Merge(err) {
- if err == ErrNil {
- err = errRepeatedHasNil
- }
- return b, err
- }
- }
- return b, nerr.E
- }
-}
-
-// makeMessageMarshaler returns the sizer and marshaler for a message field.
-// u is the marshal info of the message.
-func makeMessageMarshaler(u *marshalInfo) (sizer, marshaler) {
- return func(ptr pointer, tagsize int) int {
- p := ptr.getPointer()
- if p.isNil() {
- return 0
- }
- siz := u.size(p)
- return siz + SizeVarint(uint64(siz)) + tagsize
- },
- func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
- p := ptr.getPointer()
- if p.isNil() {
- return b, nil
- }
- b = appendVarint(b, wiretag)
- siz := u.cachedsize(p)
- b = appendVarint(b, uint64(siz))
- return u.marshal(b, p, deterministic)
- }
-}
-
-// makeMessageSliceMarshaler returns the sizer and marshaler for a message slice.
-// u is the marshal info of the message.
-func makeMessageSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
- return func(ptr pointer, tagsize int) int {
- s := ptr.getPointerSlice()
- n := 0
- for _, v := range s {
- if v.isNil() {
- continue
- }
- siz := u.size(v)
- n += siz + SizeVarint(uint64(siz)) + tagsize
- }
- return n
- },
- func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
- s := ptr.getPointerSlice()
- var err error
- var nerr nonFatal
- for _, v := range s {
- if v.isNil() {
- return b, errRepeatedHasNil
- }
- b = appendVarint(b, wiretag)
- siz := u.cachedsize(v)
- b = appendVarint(b, uint64(siz))
- b, err = u.marshal(b, v, deterministic)
-
- if !nerr.Merge(err) {
- if err == ErrNil {
- err = errRepeatedHasNil
- }
- return b, err
- }
- }
- return b, nerr.E
- }
-}
-
-// makeMapMarshaler returns the sizer and marshaler for a map field.
-// f is the pointer to the reflect data structure of the field.
-func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) {
- // figure out key and value type
- t := f.Type
- keyType := t.Key()
- valType := t.Elem()
- tags := strings.Split(f.Tag.Get("protobuf"), ",")
- keyTags := strings.Split(f.Tag.Get("protobuf_key"), ",")
- valTags := strings.Split(f.Tag.Get("protobuf_val"), ",")
- stdOptions := false
- for _, t := range tags {
- if strings.HasPrefix(t, "customtype=") {
- valTags = append(valTags, t)
- }
- if t == "stdtime" {
- valTags = append(valTags, t)
- stdOptions = true
- }
- if t == "stdduration" {
- valTags = append(valTags, t)
- stdOptions = true
- }
- if t == "wktptr" {
- valTags = append(valTags, t)
- }
- }
- keySizer, keyMarshaler := typeMarshaler(keyType, keyTags, false, false) // don't omit zero value in map
- valSizer, valMarshaler := typeMarshaler(valType, valTags, false, false) // don't omit zero value in map
- keyWireTag := 1<<3 | wiretype(keyTags[0])
- valWireTag := 2<<3 | wiretype(valTags[0])
-
- // We create an interface to get the addresses of the map key and value.
- // If value is pointer-typed, the interface is a direct interface, the
- // idata itself is the value. Otherwise, the idata is the pointer to the
- // value.
- // Key cannot be pointer-typed.
- valIsPtr := valType.Kind() == reflect.Ptr
-
- // If value is a message with nested maps, calling
- // valSizer in marshal may be quadratic. We should use
- // cached version in marshal (but not in size).
- // If value is not message type, we don't have size cache,
- // but it cannot be nested either. Just use valSizer.
- valCachedSizer := valSizer
- if valIsPtr && !stdOptions && valType.Elem().Kind() == reflect.Struct {
- u := getMarshalInfo(valType.Elem())
- valCachedSizer = func(ptr pointer, tagsize int) int {
- // Same as message sizer, but use cache.
- p := ptr.getPointer()
- if p.isNil() {
- return 0
- }
- siz := u.cachedsize(p)
- return siz + SizeVarint(uint64(siz)) + tagsize
- }
- }
- return func(ptr pointer, tagsize int) int {
- m := ptr.asPointerTo(t).Elem() // the map
- n := 0
- for _, k := range m.MapKeys() {
- ki := k.Interface()
- vi := m.MapIndex(k).Interface()
- kaddr := toAddrPointer(&ki, false) // pointer to key
- vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value
- siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1)
- n += siz + SizeVarint(uint64(siz)) + tagsize
- }
- return n
- },
- func(b []byte, ptr pointer, tag uint64, deterministic bool) ([]byte, error) {
- m := ptr.asPointerTo(t).Elem() // the map
- var err error
- keys := m.MapKeys()
- if len(keys) > 1 && deterministic {
- sort.Sort(mapKeys(keys))
- }
-
- var nerr nonFatal
- for _, k := range keys {
- ki := k.Interface()
- vi := m.MapIndex(k).Interface()
- kaddr := toAddrPointer(&ki, false) // pointer to key
- vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value
- b = appendVarint(b, tag)
- siz := keySizer(kaddr, 1) + valCachedSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1)
- b = appendVarint(b, uint64(siz))
- b, err = keyMarshaler(b, kaddr, keyWireTag, deterministic)
- if !nerr.Merge(err) {
- return b, err
- }
- b, err = valMarshaler(b, vaddr, valWireTag, deterministic)
- if err != ErrNil && !nerr.Merge(err) { // allow nil value in map
- return b, err
- }
- }
- return b, nerr.E
- }
-}
-
-// makeOneOfMarshaler returns the sizer and marshaler for a oneof field.
-// fi is the marshal info of the field.
-// f is the pointer to the reflect data structure of the field.
-func makeOneOfMarshaler(fi *marshalFieldInfo, f *reflect.StructField) (sizer, marshaler) {
- // Oneof field is an interface. We need to get the actual data type on the fly.
- t := f.Type
- return func(ptr pointer, _ int) int {
- p := ptr.getInterfacePointer()
- if p.isNil() {
- return 0
- }
- v := ptr.asPointerTo(t).Elem().Elem().Elem() // *interface -> interface -> *struct -> struct
- telem := v.Type()
- e := fi.oneofElems[telem]
- return e.sizer(p, e.tagsize)
- },
- func(b []byte, ptr pointer, _ uint64, deterministic bool) ([]byte, error) {
- p := ptr.getInterfacePointer()
- if p.isNil() {
- return b, nil
- }
- v := ptr.asPointerTo(t).Elem().Elem().Elem() // *interface -> interface -> *struct -> struct
- telem := v.Type()
- if telem.Field(0).Type.Kind() == reflect.Ptr && p.getPointer().isNil() {
- return b, errOneofHasNil
- }
- e := fi.oneofElems[telem]
- return e.marshaler(b, p, e.wiretag, deterministic)
- }
-}
-
-// sizeExtensions computes the size of encoded data for a XXX_InternalExtensions field.
-func (u *marshalInfo) sizeExtensions(ext *XXX_InternalExtensions) int {
- m, mu := ext.extensionsRead()
- if m == nil {
- return 0
- }
- mu.Lock()
-
- n := 0
- for _, e := range m {
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- n += len(e.enc)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- n += ei.sizer(p, ei.tagsize)
- }
- mu.Unlock()
- return n
-}
-
-// appendExtensions marshals a XXX_InternalExtensions field to the end of byte slice b.
-func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, deterministic bool) ([]byte, error) {
- m, mu := ext.extensionsRead()
- if m == nil {
- return b, nil
- }
- mu.Lock()
- defer mu.Unlock()
-
- var err error
- var nerr nonFatal
-
- // Fast-path for common cases: zero or one extensions.
- // Don't bother sorting the keys.
- if len(m) <= 1 {
- for _, e := range m {
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- b = append(b, e.enc...)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
- if !nerr.Merge(err) {
- return b, err
- }
- }
- return b, nerr.E
- }
-
- // Sort the keys to provide a deterministic encoding.
- // Not sure this is required, but the old code does it.
- keys := make([]int, 0, len(m))
- for k := range m {
- keys = append(keys, int(k))
- }
- sort.Ints(keys)
-
- for _, k := range keys {
- e := m[int32(k)]
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- b = append(b, e.enc...)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
- if !nerr.Merge(err) {
- return b, err
- }
- }
- return b, nerr.E
-}
-
-// message set format is:
-// message MessageSet {
-// repeated group Item = 1 {
-// required int32 type_id = 2;
-// required string message = 3;
-// };
-// }
-
-// sizeMessageSet computes the size of encoded data for a XXX_InternalExtensions field
-// in message set format (above).
-func (u *marshalInfo) sizeMessageSet(ext *XXX_InternalExtensions) int {
- m, mu := ext.extensionsRead()
- if m == nil {
- return 0
- }
- mu.Lock()
-
- n := 0
- for id, e := range m {
- n += 2 // start group, end group. tag = 1 (size=1)
- n += SizeVarint(uint64(id)) + 1 // type_id, tag = 2 (size=1)
-
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint
- siz := len(msgWithLen)
- n += siz + 1 // message, tag = 3 (size=1)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- n += ei.sizer(p, 1) // message, tag = 3 (size=1)
- }
- mu.Unlock()
- return n
-}
-
-// appendMessageSet marshals a XXX_InternalExtensions field in message set format (above)
-// to the end of byte slice b.
-func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, deterministic bool) ([]byte, error) {
- m, mu := ext.extensionsRead()
- if m == nil {
- return b, nil
- }
- mu.Lock()
- defer mu.Unlock()
-
- var err error
- var nerr nonFatal
-
- // Fast-path for common cases: zero or one extensions.
- // Don't bother sorting the keys.
- if len(m) <= 1 {
- for id, e := range m {
- b = append(b, 1<<3|WireStartGroup)
- b = append(b, 2<<3|WireVarint)
- b = appendVarint(b, uint64(id))
-
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint
- b = append(b, 3<<3|WireBytes)
- b = append(b, msgWithLen...)
- b = append(b, 1<<3|WireEndGroup)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic)
- if !nerr.Merge(err) {
- return b, err
- }
- b = append(b, 1<<3|WireEndGroup)
- }
- return b, nerr.E
- }
-
- // Sort the keys to provide a deterministic encoding.
- keys := make([]int, 0, len(m))
- for k := range m {
- keys = append(keys, int(k))
- }
- sort.Ints(keys)
-
- for _, id := range keys {
- e := m[int32(id)]
- b = append(b, 1<<3|WireStartGroup)
- b = append(b, 2<<3|WireVarint)
- b = appendVarint(b, uint64(id))
-
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint
- b = append(b, 3<<3|WireBytes)
- b = append(b, msgWithLen...)
- b = append(b, 1<<3|WireEndGroup)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic)
- b = append(b, 1<<3|WireEndGroup)
- if !nerr.Merge(err) {
- return b, err
- }
- }
- return b, nerr.E
-}
-
-// sizeV1Extensions computes the size of encoded data for a V1-API extension field.
-func (u *marshalInfo) sizeV1Extensions(m map[int32]Extension) int {
- if m == nil {
- return 0
- }
-
- n := 0
- for _, e := range m {
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- n += len(e.enc)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- n += ei.sizer(p, ei.tagsize)
- }
- return n
-}
-
-// appendV1Extensions marshals a V1-API extension field to the end of byte slice b.
-func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, deterministic bool) ([]byte, error) {
- if m == nil {
- return b, nil
- }
-
- // Sort the keys to provide a deterministic encoding.
- keys := make([]int, 0, len(m))
- for k := range m {
- keys = append(keys, int(k))
- }
- sort.Ints(keys)
-
- var err error
- var nerr nonFatal
- for _, k := range keys {
- e := m[int32(k)]
- if e.value == nil || e.desc == nil {
- // Extension is only in its encoded form.
- b = append(b, e.enc...)
- continue
- }
-
- // We don't skip extensions that have an encoded form set,
- // because the extension value may have been mutated after
- // the last time this function was called.
-
- ei := u.getExtElemInfo(e.desc)
- v := e.value
- p := toAddrPointer(&v, ei.isptr)
- b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
- if !nerr.Merge(err) {
- return b, err
- }
- }
- return b, nerr.E
-}
-
-// newMarshaler is the interface representing objects that can marshal themselves.
-//
-// This exists to support protoc-gen-go generated messages.
-// The proto package will stop type-asserting to this interface in the future.
-//
-// DO NOT DEPEND ON THIS.
-type newMarshaler interface {
- XXX_Size() int
- XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
-}
-
-// Size returns the encoded size of a protocol buffer message.
-// This is the main entry point.
-func Size(pb Message) int {
- if m, ok := pb.(newMarshaler); ok {
- return m.XXX_Size()
- }
- if m, ok := pb.(Marshaler); ok {
- // If the message can marshal itself, let it do it, for compatibility.
- // NOTE: This is not efficient.
- b, _ := m.Marshal()
- return len(b)
- }
- // in case somehow we didn't generate the wrapper
- if pb == nil {
- return 0
- }
- var info InternalMessageInfo
- return info.Size(pb)
-}
-
-// Marshal takes a protocol buffer message
-// and encodes it into the wire format, returning the data.
-// This is the main entry point.
-func Marshal(pb Message) ([]byte, error) {
- if m, ok := pb.(newMarshaler); ok {
- siz := m.XXX_Size()
- b := make([]byte, 0, siz)
- return m.XXX_Marshal(b, false)
- }
- if m, ok := pb.(Marshaler); ok {
- // If the message can marshal itself, let it do it, for compatibility.
- // NOTE: This is not efficient.
- return m.Marshal()
- }
- // in case somehow we didn't generate the wrapper
- if pb == nil {
- return nil, ErrNil
- }
- var info InternalMessageInfo
- siz := info.Size(pb)
- b := make([]byte, 0, siz)
- return info.Marshal(b, pb, false)
-}
-
-// Marshal takes a protocol buffer message
-// and encodes it into the wire format, writing the result to the
-// Buffer.
-// This is an alternative entry point. It is not necessary to use
-// a Buffer for most applications.
-func (p *Buffer) Marshal(pb Message) error {
- var err error
- if p.deterministic {
- if _, ok := pb.(Marshaler); ok {
- return fmt.Errorf("proto: deterministic not supported by the Marshal method of %T", pb)
- }
- }
- if m, ok := pb.(newMarshaler); ok {
- siz := m.XXX_Size()
- p.grow(siz) // make sure buf has enough capacity
- p.buf, err = m.XXX_Marshal(p.buf, p.deterministic)
- return err
- }
- if m, ok := pb.(Marshaler); ok {
- // If the message can marshal itself, let it do it, for compatibility.
- // NOTE: This is not efficient.
- var b []byte
- b, err = m.Marshal()
- p.buf = append(p.buf, b...)
- return err
- }
- // in case somehow we didn't generate the wrapper
- if pb == nil {
- return ErrNil
- }
- var info InternalMessageInfo
- siz := info.Size(pb)
- p.grow(siz) // make sure buf has enough capacity
- p.buf, err = info.Marshal(p.buf, pb, p.deterministic)
- return err
-}
-
-// grow grows the buffer's capacity, if necessary, to guarantee space for
-// another n bytes. After grow(n), at least n bytes can be written to the
-// buffer without another allocation.
-func (p *Buffer) grow(n int) {
- need := len(p.buf) + n
- if need <= cap(p.buf) {
- return
- }
- newCap := len(p.buf) * 2
- if newCap < need {
- newCap = need
- }
- p.buf = append(make([]byte, 0, newCap), p.buf...)
-}
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