[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/google.golang.org/protobuf/encoding/protojson/well_known_types.go b/vendor/google.golang.org/protobuf/encoding/protojson/well_known_types.go
new file mode 100644
index 0000000..72924a9
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/encoding/protojson/well_known_types.go
@@ -0,0 +1,889 @@
+// Copyright 2019 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.
+
+package protojson
+
+import (
+ "bytes"
+ "fmt"
+ "math"
+ "strconv"
+ "strings"
+ "time"
+
+ "google.golang.org/protobuf/internal/encoding/json"
+ "google.golang.org/protobuf/internal/errors"
+ "google.golang.org/protobuf/internal/genid"
+ "google.golang.org/protobuf/internal/strs"
+ "google.golang.org/protobuf/proto"
+ pref "google.golang.org/protobuf/reflect/protoreflect"
+)
+
+type marshalFunc func(encoder, pref.Message) error
+
+// wellKnownTypeMarshaler returns a marshal function if the message type
+// has specialized serialization behavior. It returns nil otherwise.
+func wellKnownTypeMarshaler(name pref.FullName) marshalFunc {
+ if name.Parent() == genid.GoogleProtobuf_package {
+ switch name.Name() {
+ case genid.Any_message_name:
+ return encoder.marshalAny
+ case genid.Timestamp_message_name:
+ return encoder.marshalTimestamp
+ case genid.Duration_message_name:
+ return encoder.marshalDuration
+ case genid.BoolValue_message_name,
+ genid.Int32Value_message_name,
+ genid.Int64Value_message_name,
+ genid.UInt32Value_message_name,
+ genid.UInt64Value_message_name,
+ genid.FloatValue_message_name,
+ genid.DoubleValue_message_name,
+ genid.StringValue_message_name,
+ genid.BytesValue_message_name:
+ return encoder.marshalWrapperType
+ case genid.Struct_message_name:
+ return encoder.marshalStruct
+ case genid.ListValue_message_name:
+ return encoder.marshalListValue
+ case genid.Value_message_name:
+ return encoder.marshalKnownValue
+ case genid.FieldMask_message_name:
+ return encoder.marshalFieldMask
+ case genid.Empty_message_name:
+ return encoder.marshalEmpty
+ }
+ }
+ return nil
+}
+
+type unmarshalFunc func(decoder, pref.Message) error
+
+// wellKnownTypeUnmarshaler returns a unmarshal function if the message type
+// has specialized serialization behavior. It returns nil otherwise.
+func wellKnownTypeUnmarshaler(name pref.FullName) unmarshalFunc {
+ if name.Parent() == genid.GoogleProtobuf_package {
+ switch name.Name() {
+ case genid.Any_message_name:
+ return decoder.unmarshalAny
+ case genid.Timestamp_message_name:
+ return decoder.unmarshalTimestamp
+ case genid.Duration_message_name:
+ return decoder.unmarshalDuration
+ case genid.BoolValue_message_name,
+ genid.Int32Value_message_name,
+ genid.Int64Value_message_name,
+ genid.UInt32Value_message_name,
+ genid.UInt64Value_message_name,
+ genid.FloatValue_message_name,
+ genid.DoubleValue_message_name,
+ genid.StringValue_message_name,
+ genid.BytesValue_message_name:
+ return decoder.unmarshalWrapperType
+ case genid.Struct_message_name:
+ return decoder.unmarshalStruct
+ case genid.ListValue_message_name:
+ return decoder.unmarshalListValue
+ case genid.Value_message_name:
+ return decoder.unmarshalKnownValue
+ case genid.FieldMask_message_name:
+ return decoder.unmarshalFieldMask
+ case genid.Empty_message_name:
+ return decoder.unmarshalEmpty
+ }
+ }
+ return nil
+}
+
+// The JSON representation of an Any message uses the regular representation of
+// the deserialized, embedded message, with an additional field `@type` which
+// contains the type URL. If the embedded message type is well-known and has a
+// custom JSON representation, that representation will be embedded adding a
+// field `value` which holds the custom JSON in addition to the `@type` field.
+
+func (e encoder) marshalAny(m pref.Message) error {
+ fds := m.Descriptor().Fields()
+ fdType := fds.ByNumber(genid.Any_TypeUrl_field_number)
+ fdValue := fds.ByNumber(genid.Any_Value_field_number)
+
+ if !m.Has(fdType) {
+ if !m.Has(fdValue) {
+ // If message is empty, marshal out empty JSON object.
+ e.StartObject()
+ e.EndObject()
+ return nil
+ } else {
+ // Return error if type_url field is not set, but value is set.
+ return errors.New("%s: %v is not set", genid.Any_message_fullname, genid.Any_TypeUrl_field_name)
+ }
+ }
+
+ typeVal := m.Get(fdType)
+ valueVal := m.Get(fdValue)
+
+ // Resolve the type in order to unmarshal value field.
+ typeURL := typeVal.String()
+ emt, err := e.opts.Resolver.FindMessageByURL(typeURL)
+ if err != nil {
+ return errors.New("%s: unable to resolve %q: %v", genid.Any_message_fullname, typeURL, err)
+ }
+
+ em := emt.New()
+ err = proto.UnmarshalOptions{
+ AllowPartial: true, // never check required fields inside an Any
+ Resolver: e.opts.Resolver,
+ }.Unmarshal(valueVal.Bytes(), em.Interface())
+ if err != nil {
+ return errors.New("%s: unable to unmarshal %q: %v", genid.Any_message_fullname, typeURL, err)
+ }
+
+ // If type of value has custom JSON encoding, marshal out a field "value"
+ // with corresponding custom JSON encoding of the embedded message as a
+ // field.
+ if marshal := wellKnownTypeMarshaler(emt.Descriptor().FullName()); marshal != nil {
+ e.StartObject()
+ defer e.EndObject()
+
+ // Marshal out @type field.
+ e.WriteName("@type")
+ if err := e.WriteString(typeURL); err != nil {
+ return err
+ }
+
+ e.WriteName("value")
+ return marshal(e, em)
+ }
+
+ // Else, marshal out the embedded message's fields in this Any object.
+ if err := e.marshalMessage(em, typeURL); err != nil {
+ return err
+ }
+
+ return nil
+}
+
+func (d decoder) unmarshalAny(m pref.Message) error {
+ // Peek to check for json.ObjectOpen to avoid advancing a read.
+ start, err := d.Peek()
+ if err != nil {
+ return err
+ }
+ if start.Kind() != json.ObjectOpen {
+ return d.unexpectedTokenError(start)
+ }
+
+ // Use another decoder to parse the unread bytes for @type field. This
+ // avoids advancing a read from current decoder because the current JSON
+ // object may contain the fields of the embedded type.
+ dec := decoder{d.Clone(), UnmarshalOptions{}}
+ tok, err := findTypeURL(dec)
+ switch err {
+ case errEmptyObject:
+ // An empty JSON object translates to an empty Any message.
+ d.Read() // Read json.ObjectOpen.
+ d.Read() // Read json.ObjectClose.
+ return nil
+
+ case errMissingType:
+ if d.opts.DiscardUnknown {
+ // Treat all fields as unknowns, similar to an empty object.
+ return d.skipJSONValue()
+ }
+ // Use start.Pos() for line position.
+ return d.newError(start.Pos(), err.Error())
+
+ default:
+ if err != nil {
+ return err
+ }
+ }
+
+ typeURL := tok.ParsedString()
+ emt, err := d.opts.Resolver.FindMessageByURL(typeURL)
+ if err != nil {
+ return d.newError(tok.Pos(), "unable to resolve %v: %q", tok.RawString(), err)
+ }
+
+ // Create new message for the embedded message type and unmarshal into it.
+ em := emt.New()
+ if unmarshal := wellKnownTypeUnmarshaler(emt.Descriptor().FullName()); unmarshal != nil {
+ // If embedded message is a custom type,
+ // unmarshal the JSON "value" field into it.
+ if err := d.unmarshalAnyValue(unmarshal, em); err != nil {
+ return err
+ }
+ } else {
+ // Else unmarshal the current JSON object into it.
+ if err := d.unmarshalMessage(em, true); err != nil {
+ return err
+ }
+ }
+ // Serialize the embedded message and assign the resulting bytes to the
+ // proto value field.
+ b, err := proto.MarshalOptions{
+ AllowPartial: true, // No need to check required fields inside an Any.
+ Deterministic: true,
+ }.Marshal(em.Interface())
+ if err != nil {
+ return d.newError(start.Pos(), "error in marshaling Any.value field: %v", err)
+ }
+
+ fds := m.Descriptor().Fields()
+ fdType := fds.ByNumber(genid.Any_TypeUrl_field_number)
+ fdValue := fds.ByNumber(genid.Any_Value_field_number)
+
+ m.Set(fdType, pref.ValueOfString(typeURL))
+ m.Set(fdValue, pref.ValueOfBytes(b))
+ return nil
+}
+
+var errEmptyObject = fmt.Errorf(`empty object`)
+var errMissingType = fmt.Errorf(`missing "@type" field`)
+
+// findTypeURL returns the token for the "@type" field value from the given
+// JSON bytes. It is expected that the given bytes start with json.ObjectOpen.
+// It returns errEmptyObject if the JSON object is empty or errMissingType if
+// @type field does not exist. It returns other error if the @type field is not
+// valid or other decoding issues.
+func findTypeURL(d decoder) (json.Token, error) {
+ var typeURL string
+ var typeTok json.Token
+ numFields := 0
+ // Skip start object.
+ d.Read()
+
+Loop:
+ for {
+ tok, err := d.Read()
+ if err != nil {
+ return json.Token{}, err
+ }
+
+ switch tok.Kind() {
+ case json.ObjectClose:
+ if typeURL == "" {
+ // Did not find @type field.
+ if numFields > 0 {
+ return json.Token{}, errMissingType
+ }
+ return json.Token{}, errEmptyObject
+ }
+ break Loop
+
+ case json.Name:
+ numFields++
+ if tok.Name() != "@type" {
+ // Skip value.
+ if err := d.skipJSONValue(); err != nil {
+ return json.Token{}, err
+ }
+ continue
+ }
+
+ // Return error if this was previously set already.
+ if typeURL != "" {
+ return json.Token{}, d.newError(tok.Pos(), `duplicate "@type" field`)
+ }
+ // Read field value.
+ tok, err := d.Read()
+ if err != nil {
+ return json.Token{}, err
+ }
+ if tok.Kind() != json.String {
+ return json.Token{}, d.newError(tok.Pos(), `@type field value is not a string: %v`, tok.RawString())
+ }
+ typeURL = tok.ParsedString()
+ if typeURL == "" {
+ return json.Token{}, d.newError(tok.Pos(), `@type field contains empty value`)
+ }
+ typeTok = tok
+ }
+ }
+
+ return typeTok, nil
+}
+
+// skipJSONValue parses a JSON value (null, boolean, string, number, object and
+// array) in order to advance the read to the next JSON value. It relies on
+// the decoder returning an error if the types are not in valid sequence.
+func (d decoder) skipJSONValue() error {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ // Only need to continue reading for objects and arrays.
+ switch tok.Kind() {
+ case json.ObjectOpen:
+ for {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ switch tok.Kind() {
+ case json.ObjectClose:
+ return nil
+ case json.Name:
+ // Skip object field value.
+ if err := d.skipJSONValue(); err != nil {
+ return err
+ }
+ }
+ }
+
+ case json.ArrayOpen:
+ for {
+ tok, err := d.Peek()
+ if err != nil {
+ return err
+ }
+ switch tok.Kind() {
+ case json.ArrayClose:
+ d.Read()
+ return nil
+ default:
+ // Skip array item.
+ if err := d.skipJSONValue(); err != nil {
+ return err
+ }
+ }
+ }
+ }
+ return nil
+}
+
+// unmarshalAnyValue unmarshals the given custom-type message from the JSON
+// object's "value" field.
+func (d decoder) unmarshalAnyValue(unmarshal unmarshalFunc, m pref.Message) error {
+ // Skip ObjectOpen, and start reading the fields.
+ d.Read()
+
+ var found bool // Used for detecting duplicate "value".
+ for {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ switch tok.Kind() {
+ case json.ObjectClose:
+ if !found {
+ return d.newError(tok.Pos(), `missing "value" field`)
+ }
+ return nil
+
+ case json.Name:
+ switch tok.Name() {
+ case "@type":
+ // Skip the value as this was previously parsed already.
+ d.Read()
+
+ case "value":
+ if found {
+ return d.newError(tok.Pos(), `duplicate "value" field`)
+ }
+ // Unmarshal the field value into the given message.
+ if err := unmarshal(d, m); err != nil {
+ return err
+ }
+ found = true
+
+ default:
+ if d.opts.DiscardUnknown {
+ if err := d.skipJSONValue(); err != nil {
+ return err
+ }
+ continue
+ }
+ return d.newError(tok.Pos(), "unknown field %v", tok.RawString())
+ }
+ }
+ }
+}
+
+// Wrapper types are encoded as JSON primitives like string, number or boolean.
+
+func (e encoder) marshalWrapperType(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.WrapperValue_Value_field_number)
+ val := m.Get(fd)
+ return e.marshalSingular(val, fd)
+}
+
+func (d decoder) unmarshalWrapperType(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.WrapperValue_Value_field_number)
+ val, err := d.unmarshalScalar(fd)
+ if err != nil {
+ return err
+ }
+ m.Set(fd, val)
+ return nil
+}
+
+// The JSON representation for Empty is an empty JSON object.
+
+func (e encoder) marshalEmpty(pref.Message) error {
+ e.StartObject()
+ e.EndObject()
+ return nil
+}
+
+func (d decoder) unmarshalEmpty(pref.Message) error {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ if tok.Kind() != json.ObjectOpen {
+ return d.unexpectedTokenError(tok)
+ }
+
+ for {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ switch tok.Kind() {
+ case json.ObjectClose:
+ return nil
+
+ case json.Name:
+ if d.opts.DiscardUnknown {
+ if err := d.skipJSONValue(); err != nil {
+ return err
+ }
+ continue
+ }
+ return d.newError(tok.Pos(), "unknown field %v", tok.RawString())
+
+ default:
+ return d.unexpectedTokenError(tok)
+ }
+ }
+}
+
+// The JSON representation for Struct is a JSON object that contains the encoded
+// Struct.fields map and follows the serialization rules for a map.
+
+func (e encoder) marshalStruct(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.Struct_Fields_field_number)
+ return e.marshalMap(m.Get(fd).Map(), fd)
+}
+
+func (d decoder) unmarshalStruct(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.Struct_Fields_field_number)
+ return d.unmarshalMap(m.Mutable(fd).Map(), fd)
+}
+
+// The JSON representation for ListValue is JSON array that contains the encoded
+// ListValue.values repeated field and follows the serialization rules for a
+// repeated field.
+
+func (e encoder) marshalListValue(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.ListValue_Values_field_number)
+ return e.marshalList(m.Get(fd).List(), fd)
+}
+
+func (d decoder) unmarshalListValue(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.ListValue_Values_field_number)
+ return d.unmarshalList(m.Mutable(fd).List(), fd)
+}
+
+// The JSON representation for a Value is dependent on the oneof field that is
+// set. Each of the field in the oneof has its own custom serialization rule. A
+// Value message needs to be a oneof field set, else it is an error.
+
+func (e encoder) marshalKnownValue(m pref.Message) error {
+ od := m.Descriptor().Oneofs().ByName(genid.Value_Kind_oneof_name)
+ fd := m.WhichOneof(od)
+ if fd == nil {
+ return errors.New("%s: none of the oneof fields is set", genid.Value_message_fullname)
+ }
+ if fd.Number() == genid.Value_NumberValue_field_number {
+ if v := m.Get(fd).Float(); math.IsNaN(v) || math.IsInf(v, 0) {
+ return errors.New("%s: invalid %v value", genid.Value_NumberValue_field_fullname, v)
+ }
+ }
+ return e.marshalSingular(m.Get(fd), fd)
+}
+
+func (d decoder) unmarshalKnownValue(m pref.Message) error {
+ tok, err := d.Peek()
+ if err != nil {
+ return err
+ }
+
+ var fd pref.FieldDescriptor
+ var val pref.Value
+ switch tok.Kind() {
+ case json.Null:
+ d.Read()
+ fd = m.Descriptor().Fields().ByNumber(genid.Value_NullValue_field_number)
+ val = pref.ValueOfEnum(0)
+
+ case json.Bool:
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ fd = m.Descriptor().Fields().ByNumber(genid.Value_BoolValue_field_number)
+ val = pref.ValueOfBool(tok.Bool())
+
+ case json.Number:
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ fd = m.Descriptor().Fields().ByNumber(genid.Value_NumberValue_field_number)
+ var ok bool
+ val, ok = unmarshalFloat(tok, 64)
+ if !ok {
+ return d.newError(tok.Pos(), "invalid %v: %v", genid.Value_message_fullname, tok.RawString())
+ }
+
+ case json.String:
+ // A JSON string may have been encoded from the number_value field,
+ // e.g. "NaN", "Infinity", etc. Parsing a proto double type also allows
+ // for it to be in JSON string form. Given this custom encoding spec,
+ // however, there is no way to identify that and hence a JSON string is
+ // always assigned to the string_value field, which means that certain
+ // encoding cannot be parsed back to the same field.
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ fd = m.Descriptor().Fields().ByNumber(genid.Value_StringValue_field_number)
+ val = pref.ValueOfString(tok.ParsedString())
+
+ case json.ObjectOpen:
+ fd = m.Descriptor().Fields().ByNumber(genid.Value_StructValue_field_number)
+ val = m.NewField(fd)
+ if err := d.unmarshalStruct(val.Message()); err != nil {
+ return err
+ }
+
+ case json.ArrayOpen:
+ fd = m.Descriptor().Fields().ByNumber(genid.Value_ListValue_field_number)
+ val = m.NewField(fd)
+ if err := d.unmarshalListValue(val.Message()); err != nil {
+ return err
+ }
+
+ default:
+ return d.newError(tok.Pos(), "invalid %v: %v", genid.Value_message_fullname, tok.RawString())
+ }
+
+ m.Set(fd, val)
+ return nil
+}
+
+// The JSON representation for a Duration is a JSON string that ends in the
+// suffix "s" (indicating seconds) and is preceded by the number of seconds,
+// with nanoseconds expressed as fractional seconds.
+//
+// Durations less than one second are represented with a 0 seconds field and a
+// positive or negative nanos field. For durations of one second or more, a
+// non-zero value for the nanos field must be of the same sign as the seconds
+// field.
+//
+// Duration.seconds must be from -315,576,000,000 to +315,576,000,000 inclusive.
+// Duration.nanos must be from -999,999,999 to +999,999,999 inclusive.
+
+const (
+ secondsInNanos = 999999999
+ maxSecondsInDuration = 315576000000
+)
+
+func (e encoder) marshalDuration(m pref.Message) error {
+ fds := m.Descriptor().Fields()
+ fdSeconds := fds.ByNumber(genid.Duration_Seconds_field_number)
+ fdNanos := fds.ByNumber(genid.Duration_Nanos_field_number)
+
+ secsVal := m.Get(fdSeconds)
+ nanosVal := m.Get(fdNanos)
+ secs := secsVal.Int()
+ nanos := nanosVal.Int()
+ if secs < -maxSecondsInDuration || secs > maxSecondsInDuration {
+ return errors.New("%s: seconds out of range %v", genid.Duration_message_fullname, secs)
+ }
+ if nanos < -secondsInNanos || nanos > secondsInNanos {
+ return errors.New("%s: nanos out of range %v", genid.Duration_message_fullname, nanos)
+ }
+ if (secs > 0 && nanos < 0) || (secs < 0 && nanos > 0) {
+ return errors.New("%s: signs of seconds and nanos do not match", genid.Duration_message_fullname)
+ }
+ // Generated output always contains 0, 3, 6, or 9 fractional digits,
+ // depending on required precision, followed by the suffix "s".
+ var sign string
+ if secs < 0 || nanos < 0 {
+ sign, secs, nanos = "-", -1*secs, -1*nanos
+ }
+ x := fmt.Sprintf("%s%d.%09d", sign, secs, nanos)
+ x = strings.TrimSuffix(x, "000")
+ x = strings.TrimSuffix(x, "000")
+ x = strings.TrimSuffix(x, ".000")
+ e.WriteString(x + "s")
+ return nil
+}
+
+func (d decoder) unmarshalDuration(m pref.Message) error {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ if tok.Kind() != json.String {
+ return d.unexpectedTokenError(tok)
+ }
+
+ secs, nanos, ok := parseDuration(tok.ParsedString())
+ if !ok {
+ return d.newError(tok.Pos(), "invalid %v value %v", genid.Duration_message_fullname, tok.RawString())
+ }
+ // Validate seconds. No need to validate nanos because parseDuration would
+ // have covered that already.
+ if secs < -maxSecondsInDuration || secs > maxSecondsInDuration {
+ return d.newError(tok.Pos(), "%v value out of range: %v", genid.Duration_message_fullname, tok.RawString())
+ }
+
+ fds := m.Descriptor().Fields()
+ fdSeconds := fds.ByNumber(genid.Duration_Seconds_field_number)
+ fdNanos := fds.ByNumber(genid.Duration_Nanos_field_number)
+
+ m.Set(fdSeconds, pref.ValueOfInt64(secs))
+ m.Set(fdNanos, pref.ValueOfInt32(nanos))
+ return nil
+}
+
+// parseDuration parses the given input string for seconds and nanoseconds value
+// for the Duration JSON format. The format is a decimal number with a suffix
+// 's'. It can have optional plus/minus sign. There needs to be at least an
+// integer or fractional part. Fractional part is limited to 9 digits only for
+// nanoseconds precision, regardless of whether there are trailing zero digits.
+// Example values are 1s, 0.1s, 1.s, .1s, +1s, -1s, -.1s.
+func parseDuration(input string) (int64, int32, bool) {
+ b := []byte(input)
+ size := len(b)
+ if size < 2 {
+ return 0, 0, false
+ }
+ if b[size-1] != 's' {
+ return 0, 0, false
+ }
+ b = b[:size-1]
+
+ // Read optional plus/minus symbol.
+ var neg bool
+ switch b[0] {
+ case '-':
+ neg = true
+ b = b[1:]
+ case '+':
+ b = b[1:]
+ }
+ if len(b) == 0 {
+ return 0, 0, false
+ }
+
+ // Read the integer part.
+ var intp []byte
+ switch {
+ case b[0] == '0':
+ b = b[1:]
+
+ case '1' <= b[0] && b[0] <= '9':
+ intp = b[0:]
+ b = b[1:]
+ n := 1
+ for len(b) > 0 && '0' <= b[0] && b[0] <= '9' {
+ n++
+ b = b[1:]
+ }
+ intp = intp[:n]
+
+ case b[0] == '.':
+ // Continue below.
+
+ default:
+ return 0, 0, false
+ }
+
+ hasFrac := false
+ var frac [9]byte
+ if len(b) > 0 {
+ if b[0] != '.' {
+ return 0, 0, false
+ }
+ // Read the fractional part.
+ b = b[1:]
+ n := 0
+ for len(b) > 0 && n < 9 && '0' <= b[0] && b[0] <= '9' {
+ frac[n] = b[0]
+ n++
+ b = b[1:]
+ }
+ // It is not valid if there are more bytes left.
+ if len(b) > 0 {
+ return 0, 0, false
+ }
+ // Pad fractional part with 0s.
+ for i := n; i < 9; i++ {
+ frac[i] = '0'
+ }
+ hasFrac = true
+ }
+
+ var secs int64
+ if len(intp) > 0 {
+ var err error
+ secs, err = strconv.ParseInt(string(intp), 10, 64)
+ if err != nil {
+ return 0, 0, false
+ }
+ }
+
+ var nanos int64
+ if hasFrac {
+ nanob := bytes.TrimLeft(frac[:], "0")
+ if len(nanob) > 0 {
+ var err error
+ nanos, err = strconv.ParseInt(string(nanob), 10, 32)
+ if err != nil {
+ return 0, 0, false
+ }
+ }
+ }
+
+ if neg {
+ if secs > 0 {
+ secs = -secs
+ }
+ if nanos > 0 {
+ nanos = -nanos
+ }
+ }
+ return secs, int32(nanos), true
+}
+
+// The JSON representation for a Timestamp is a JSON string in the RFC 3339
+// format, i.e. "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z" where
+// {year} is always expressed using four digits while {month}, {day}, {hour},
+// {min}, and {sec} are zero-padded to two digits each. The fractional seconds,
+// which can go up to 9 digits, up to 1 nanosecond resolution, is optional. The
+// "Z" suffix indicates the timezone ("UTC"); the timezone is required. Encoding
+// should always use UTC (as indicated by "Z") and a decoder should be able to
+// accept both UTC and other timezones (as indicated by an offset).
+//
+// Timestamp.seconds must be from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z
+// inclusive.
+// Timestamp.nanos must be from 0 to 999,999,999 inclusive.
+
+const (
+ maxTimestampSeconds = 253402300799
+ minTimestampSeconds = -62135596800
+)
+
+func (e encoder) marshalTimestamp(m pref.Message) error {
+ fds := m.Descriptor().Fields()
+ fdSeconds := fds.ByNumber(genid.Timestamp_Seconds_field_number)
+ fdNanos := fds.ByNumber(genid.Timestamp_Nanos_field_number)
+
+ secsVal := m.Get(fdSeconds)
+ nanosVal := m.Get(fdNanos)
+ secs := secsVal.Int()
+ nanos := nanosVal.Int()
+ if secs < minTimestampSeconds || secs > maxTimestampSeconds {
+ return errors.New("%s: seconds out of range %v", genid.Timestamp_message_fullname, secs)
+ }
+ if nanos < 0 || nanos > secondsInNanos {
+ return errors.New("%s: nanos out of range %v", genid.Timestamp_message_fullname, nanos)
+ }
+ // Uses RFC 3339, where generated output will be Z-normalized and uses 0, 3,
+ // 6 or 9 fractional digits.
+ t := time.Unix(secs, nanos).UTC()
+ x := t.Format("2006-01-02T15:04:05.000000000")
+ x = strings.TrimSuffix(x, "000")
+ x = strings.TrimSuffix(x, "000")
+ x = strings.TrimSuffix(x, ".000")
+ e.WriteString(x + "Z")
+ return nil
+}
+
+func (d decoder) unmarshalTimestamp(m pref.Message) error {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ if tok.Kind() != json.String {
+ return d.unexpectedTokenError(tok)
+ }
+
+ t, err := time.Parse(time.RFC3339Nano, tok.ParsedString())
+ if err != nil {
+ return d.newError(tok.Pos(), "invalid %v value %v", genid.Timestamp_message_fullname, tok.RawString())
+ }
+ // Validate seconds. No need to validate nanos because time.Parse would have
+ // covered that already.
+ secs := t.Unix()
+ if secs < minTimestampSeconds || secs > maxTimestampSeconds {
+ return d.newError(tok.Pos(), "%v value out of range: %v", genid.Timestamp_message_fullname, tok.RawString())
+ }
+
+ fds := m.Descriptor().Fields()
+ fdSeconds := fds.ByNumber(genid.Timestamp_Seconds_field_number)
+ fdNanos := fds.ByNumber(genid.Timestamp_Nanos_field_number)
+
+ m.Set(fdSeconds, pref.ValueOfInt64(secs))
+ m.Set(fdNanos, pref.ValueOfInt32(int32(t.Nanosecond())))
+ return nil
+}
+
+// The JSON representation for a FieldMask is a JSON string where paths are
+// separated by a comma. Fields name in each path are converted to/from
+// lower-camel naming conventions. Encoding should fail if the path name would
+// end up differently after a round-trip.
+
+func (e encoder) marshalFieldMask(m pref.Message) error {
+ fd := m.Descriptor().Fields().ByNumber(genid.FieldMask_Paths_field_number)
+ list := m.Get(fd).List()
+ paths := make([]string, 0, list.Len())
+
+ for i := 0; i < list.Len(); i++ {
+ s := list.Get(i).String()
+ if !pref.FullName(s).IsValid() {
+ return errors.New("%s contains invalid path: %q", genid.FieldMask_Paths_field_fullname, s)
+ }
+ // Return error if conversion to camelCase is not reversible.
+ cc := strs.JSONCamelCase(s)
+ if s != strs.JSONSnakeCase(cc) {
+ return errors.New("%s contains irreversible value %q", genid.FieldMask_Paths_field_fullname, s)
+ }
+ paths = append(paths, cc)
+ }
+
+ e.WriteString(strings.Join(paths, ","))
+ return nil
+}
+
+func (d decoder) unmarshalFieldMask(m pref.Message) error {
+ tok, err := d.Read()
+ if err != nil {
+ return err
+ }
+ if tok.Kind() != json.String {
+ return d.unexpectedTokenError(tok)
+ }
+ str := strings.TrimSpace(tok.ParsedString())
+ if str == "" {
+ return nil
+ }
+ paths := strings.Split(str, ",")
+
+ fd := m.Descriptor().Fields().ByNumber(genid.FieldMask_Paths_field_number)
+ list := m.Mutable(fd).List()
+
+ for _, s0 := range paths {
+ s := strs.JSONSnakeCase(s0)
+ if strings.Contains(s0, "_") || !pref.FullName(s).IsValid() {
+ return d.newError(tok.Pos(), "%v contains invalid path: %q", genid.FieldMask_Paths_field_fullname, s0)
+ }
+ list.Append(pref.ValueOfString(s))
+ }
+ return nil
+}