[VOL-4442] grpc streaming connection monitoring
Change-Id: I435a03fdc0ac2b549dc4512220148cb19c16db19
diff --git a/vendor/github.com/jhump/protoreflect/dynamic/dynamic_message.go b/vendor/github.com/jhump/protoreflect/dynamic/dynamic_message.go
new file mode 100644
index 0000000..de13b92
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/dynamic/dynamic_message.go
@@ -0,0 +1,2734 @@
+package dynamic
+
+import (
+ "bytes"
+ "compress/gzip"
+ "errors"
+ "fmt"
+ "reflect"
+ "sort"
+ "strings"
+
+ "github.com/golang/protobuf/proto"
+ "github.com/golang/protobuf/protoc-gen-go/descriptor"
+
+ "github.com/jhump/protoreflect/codec"
+ "github.com/jhump/protoreflect/desc"
+ "github.com/jhump/protoreflect/internal"
+)
+
+// ErrUnknownTagNumber is an error that is returned when an operation refers
+// to an unknown tag number.
+var ErrUnknownTagNumber = errors.New("unknown tag number")
+
+// UnknownTagNumberError is the same as ErrUnknownTagNumber.
+// Deprecated: use ErrUnknownTagNumber
+var UnknownTagNumberError = ErrUnknownTagNumber
+
+// ErrUnknownFieldName is an error that is returned when an operation refers
+// to an unknown field name.
+var ErrUnknownFieldName = errors.New("unknown field name")
+
+// UnknownFieldNameError is the same as ErrUnknownFieldName.
+// Deprecated: use ErrUnknownFieldName
+var UnknownFieldNameError = ErrUnknownFieldName
+
+// ErrFieldIsNotMap is an error that is returned when map-related operations
+// are attempted with fields that are not maps.
+var ErrFieldIsNotMap = errors.New("field is not a map type")
+
+// FieldIsNotMapError is the same as ErrFieldIsNotMap.
+// Deprecated: use ErrFieldIsNotMap
+var FieldIsNotMapError = ErrFieldIsNotMap
+
+// ErrFieldIsNotRepeated is an error that is returned when repeated field
+// operations are attempted with fields that are not repeated.
+var ErrFieldIsNotRepeated = errors.New("field is not repeated")
+
+// FieldIsNotRepeatedError is the same as ErrFieldIsNotRepeated.
+// Deprecated: use ErrFieldIsNotRepeated
+var FieldIsNotRepeatedError = ErrFieldIsNotRepeated
+
+// ErrIndexOutOfRange is an error that is returned when an invalid index is
+// provided when access a single element of a repeated field.
+var ErrIndexOutOfRange = errors.New("index is out of range")
+
+// IndexOutOfRangeError is the same as ErrIndexOutOfRange.
+// Deprecated: use ErrIndexOutOfRange
+var IndexOutOfRangeError = ErrIndexOutOfRange
+
+// ErrNumericOverflow is an error returned by operations that encounter a
+// numeric value that is too large, for example de-serializing a value into an
+// int32 field when the value is larger that can fit into a 32-bit value.
+var ErrNumericOverflow = errors.New("numeric value is out of range")
+
+// NumericOverflowError is the same as ErrNumericOverflow.
+// Deprecated: use ErrNumericOverflow
+var NumericOverflowError = ErrNumericOverflow
+
+var typeOfProtoMessage = reflect.TypeOf((*proto.Message)(nil)).Elem()
+var typeOfDynamicMessage = reflect.TypeOf((*Message)(nil))
+var typeOfBytes = reflect.TypeOf(([]byte)(nil))
+
+// Message is a dynamic protobuf message. Instead of a generated struct,
+// like most protobuf messages, this is a map of field number to values and
+// a message descriptor, which is used to validate the field values and
+// also to de-serialize messages (from the standard binary format, as well
+// as from the text format and from JSON).
+type Message struct {
+ md *desc.MessageDescriptor
+ er *ExtensionRegistry
+ mf *MessageFactory
+ extraFields map[int32]*desc.FieldDescriptor
+ values map[int32]interface{}
+ unknownFields map[int32][]UnknownField
+}
+
+// UnknownField represents a field that was parsed from the binary wire
+// format for a message, but was not a recognized field number. Enough
+// information is preserved so that re-serializing the message won't lose
+// any of the unrecognized data.
+type UnknownField struct {
+ // Encoding indicates how the unknown field was encoded on the wire. If it
+ // is proto.WireBytes or proto.WireGroupStart then Contents will be set to
+ // the raw bytes. If it is proto.WireTypeFixed32 then the data is in the least
+ // significant 32 bits of Value. Otherwise, the data is in all 64 bits of
+ // Value.
+ Encoding int8
+ Contents []byte
+ Value uint64
+}
+
+// NewMessage creates a new dynamic message for the type represented by the given
+// message descriptor. During de-serialization, a default MessageFactory is used to
+// instantiate any nested message fields and no extension fields will be parsed. To
+// use a custom MessageFactory or ExtensionRegistry, use MessageFactory.NewMessage.
+func NewMessage(md *desc.MessageDescriptor) *Message {
+ return NewMessageWithMessageFactory(md, nil)
+}
+
+// NewMessageWithExtensionRegistry creates a new dynamic message for the type
+// represented by the given message descriptor. During de-serialization, the given
+// ExtensionRegistry is used to parse extension fields and nested messages will be
+// instantiated using dynamic.NewMessageFactoryWithExtensionRegistry(er).
+func NewMessageWithExtensionRegistry(md *desc.MessageDescriptor, er *ExtensionRegistry) *Message {
+ mf := NewMessageFactoryWithExtensionRegistry(er)
+ return NewMessageWithMessageFactory(md, mf)
+}
+
+// NewMessageWithMessageFactory creates a new dynamic message for the type
+// represented by the given message descriptor. During de-serialization, the given
+// MessageFactory is used to instantiate nested messages.
+func NewMessageWithMessageFactory(md *desc.MessageDescriptor, mf *MessageFactory) *Message {
+ var er *ExtensionRegistry
+ if mf != nil {
+ er = mf.er
+ }
+ return &Message{
+ md: md,
+ mf: mf,
+ er: er,
+ }
+}
+
+// AsDynamicMessage converts the given message to a dynamic message. If the
+// given message is dynamic, it is returned. Otherwise, a dynamic message is
+// created using NewMessage.
+func AsDynamicMessage(msg proto.Message) (*Message, error) {
+ return AsDynamicMessageWithMessageFactory(msg, nil)
+}
+
+// AsDynamicMessageWithExtensionRegistry converts the given message to a dynamic
+// message. If the given message is dynamic, it is returned. Otherwise, a
+// dynamic message is created using NewMessageWithExtensionRegistry.
+func AsDynamicMessageWithExtensionRegistry(msg proto.Message, er *ExtensionRegistry) (*Message, error) {
+ mf := NewMessageFactoryWithExtensionRegistry(er)
+ return AsDynamicMessageWithMessageFactory(msg, mf)
+}
+
+// AsDynamicMessageWithMessageFactory converts the given message to a dynamic
+// message. If the given message is dynamic, it is returned. Otherwise, a
+// dynamic message is created using NewMessageWithMessageFactory.
+func AsDynamicMessageWithMessageFactory(msg proto.Message, mf *MessageFactory) (*Message, error) {
+ if dm, ok := msg.(*Message); ok {
+ return dm, nil
+ }
+ md, err := desc.LoadMessageDescriptorForMessage(msg)
+ if err != nil {
+ return nil, err
+ }
+ dm := NewMessageWithMessageFactory(md, mf)
+ err = dm.mergeFrom(msg)
+ if err != nil {
+ return nil, err
+ }
+ return dm, nil
+}
+
+// GetMessageDescriptor returns a descriptor for this message's type.
+func (m *Message) GetMessageDescriptor() *desc.MessageDescriptor {
+ return m.md
+}
+
+// GetKnownFields returns a slice of descriptors for all known fields. The
+// fields will not be in any defined order.
+func (m *Message) GetKnownFields() []*desc.FieldDescriptor {
+ if len(m.extraFields) == 0 {
+ return m.md.GetFields()
+ }
+ flds := make([]*desc.FieldDescriptor, len(m.md.GetFields()), len(m.md.GetFields())+len(m.extraFields))
+ copy(flds, m.md.GetFields())
+ for _, fld := range m.extraFields {
+ if !fld.IsExtension() {
+ flds = append(flds, fld)
+ }
+ }
+ return flds
+}
+
+// GetKnownExtensions returns a slice of descriptors for all extensions known by
+// the message's extension registry. The fields will not be in any defined order.
+func (m *Message) GetKnownExtensions() []*desc.FieldDescriptor {
+ if !m.md.IsExtendable() {
+ return nil
+ }
+ exts := m.er.AllExtensionsForType(m.md.GetFullyQualifiedName())
+ for _, fld := range m.extraFields {
+ if fld.IsExtension() {
+ exts = append(exts, fld)
+ }
+ }
+ return exts
+}
+
+// GetUnknownFields returns a slice of tag numbers for all unknown fields that
+// this message contains. The tags will not be in any defined order.
+func (m *Message) GetUnknownFields() []int32 {
+ flds := make([]int32, 0, len(m.unknownFields))
+ for tag := range m.unknownFields {
+ flds = append(flds, tag)
+ }
+ return flds
+}
+
+// Descriptor returns the serialized form of the file descriptor in which the
+// message was defined and a path to the message type therein. This mimics the
+// method of the same name on message types generated by protoc.
+func (m *Message) Descriptor() ([]byte, []int) {
+ // get encoded file descriptor
+ b, err := proto.Marshal(m.md.GetFile().AsProto())
+ if err != nil {
+ panic(fmt.Sprintf("failed to get encoded descriptor for %s: %v", m.md.GetFile().GetName(), err))
+ }
+ var zippedBytes bytes.Buffer
+ w := gzip.NewWriter(&zippedBytes)
+ if _, err := w.Write(b); err != nil {
+ panic(fmt.Sprintf("failed to get encoded descriptor for %s: %v", m.md.GetFile().GetName(), err))
+ }
+ if err := w.Close(); err != nil {
+ panic(fmt.Sprintf("failed to get an encoded descriptor for %s: %v", m.md.GetFile().GetName(), err))
+ }
+
+ // and path to message
+ path := []int{}
+ var d desc.Descriptor
+ name := m.md.GetFullyQualifiedName()
+ for d = m.md.GetParent(); d != nil; name, d = d.GetFullyQualifiedName(), d.GetParent() {
+ found := false
+ switch d := d.(type) {
+ case (*desc.FileDescriptor):
+ for i, md := range d.GetMessageTypes() {
+ if md.GetFullyQualifiedName() == name {
+ found = true
+ path = append(path, i)
+ }
+ }
+ case (*desc.MessageDescriptor):
+ for i, md := range d.GetNestedMessageTypes() {
+ if md.GetFullyQualifiedName() == name {
+ found = true
+ path = append(path, i)
+ }
+ }
+ }
+ if !found {
+ panic(fmt.Sprintf("failed to compute descriptor path for %s", m.md.GetFullyQualifiedName()))
+ }
+ }
+ // reverse the path
+ i := 0
+ j := len(path) - 1
+ for i < j {
+ path[i], path[j] = path[j], path[i]
+ i++
+ j--
+ }
+
+ return zippedBytes.Bytes(), path
+}
+
+// XXX_MessageName returns the fully qualified name of this message's type. This
+// allows dynamic messages to be used with proto.MessageName.
+func (m *Message) XXX_MessageName() string {
+ return m.md.GetFullyQualifiedName()
+}
+
+// FindFieldDescriptor returns a field descriptor for the given tag number. This
+// searches known fields in the descriptor, known fields discovered during calls
+// to GetField or SetField, and extension fields known by the message's extension
+// registry. It returns nil if the tag is unknown.
+func (m *Message) FindFieldDescriptor(tagNumber int32) *desc.FieldDescriptor {
+ fd := m.md.FindFieldByNumber(tagNumber)
+ if fd != nil {
+ return fd
+ }
+ fd = m.er.FindExtension(m.md.GetFullyQualifiedName(), tagNumber)
+ if fd != nil {
+ return fd
+ }
+ return m.extraFields[tagNumber]
+}
+
+// FindFieldDescriptorByName returns a field descriptor for the given field
+// name. This searches known fields in the descriptor, known fields discovered
+// during calls to GetField or SetField, and extension fields known by the
+// message's extension registry. It returns nil if the name is unknown. If the
+// given name refers to an extension, it should be fully qualified and may be
+// optionally enclosed in parentheses or brackets.
+func (m *Message) FindFieldDescriptorByName(name string) *desc.FieldDescriptor {
+ if name == "" {
+ return nil
+ }
+ fd := m.md.FindFieldByName(name)
+ if fd != nil {
+ return fd
+ }
+ mustBeExt := false
+ if name[0] == '(' {
+ if name[len(name)-1] != ')' {
+ // malformed name
+ return nil
+ }
+ mustBeExt = true
+ name = name[1 : len(name)-1]
+ } else if name[0] == '[' {
+ if name[len(name)-1] != ']' {
+ // malformed name
+ return nil
+ }
+ mustBeExt = true
+ name = name[1 : len(name)-1]
+ }
+ fd = m.er.FindExtensionByName(m.md.GetFullyQualifiedName(), name)
+ if fd != nil {
+ return fd
+ }
+ for _, fd := range m.extraFields {
+ if fd.IsExtension() && name == fd.GetFullyQualifiedName() {
+ return fd
+ } else if !mustBeExt && !fd.IsExtension() && name == fd.GetName() {
+ return fd
+ }
+ }
+
+ return nil
+}
+
+// FindFieldDescriptorByJSONName returns a field descriptor for the given JSON
+// name. This searches known fields in the descriptor, known fields discovered
+// during calls to GetField or SetField, and extension fields known by the
+// message's extension registry. If no field matches the given JSON name, it
+// will fall back to searching field names (e.g. FindFieldDescriptorByName). If
+// this also yields no match, nil is returned.
+func (m *Message) FindFieldDescriptorByJSONName(name string) *desc.FieldDescriptor {
+ if name == "" {
+ return nil
+ }
+ fd := m.md.FindFieldByJSONName(name)
+ if fd != nil {
+ return fd
+ }
+ mustBeExt := false
+ if name[0] == '(' {
+ if name[len(name)-1] != ')' {
+ // malformed name
+ return nil
+ }
+ mustBeExt = true
+ name = name[1 : len(name)-1]
+ } else if name[0] == '[' {
+ if name[len(name)-1] != ']' {
+ // malformed name
+ return nil
+ }
+ mustBeExt = true
+ name = name[1 : len(name)-1]
+ }
+ fd = m.er.FindExtensionByJSONName(m.md.GetFullyQualifiedName(), name)
+ if fd != nil {
+ return fd
+ }
+ for _, fd := range m.extraFields {
+ if fd.IsExtension() && name == fd.GetFullyQualifiedJSONName() {
+ return fd
+ } else if !mustBeExt && !fd.IsExtension() && name == fd.GetJSONName() {
+ return fd
+ }
+ }
+
+ // try non-JSON names
+ return m.FindFieldDescriptorByName(name)
+}
+
+func (m *Message) checkField(fd *desc.FieldDescriptor) error {
+ return checkField(fd, m.md)
+}
+
+func checkField(fd *desc.FieldDescriptor, md *desc.MessageDescriptor) error {
+ if fd.GetOwner().GetFullyQualifiedName() != md.GetFullyQualifiedName() {
+ return fmt.Errorf("given field, %s, is for wrong message type: %s; expecting %s", fd.GetName(), fd.GetOwner().GetFullyQualifiedName(), md.GetFullyQualifiedName())
+ }
+ if fd.IsExtension() && !md.IsExtension(fd.GetNumber()) {
+ return fmt.Errorf("given field, %s, is an extension but is not in message extension range: %v", fd.GetFullyQualifiedName(), md.GetExtensionRanges())
+ }
+ return nil
+}
+
+// GetField returns the value for the given field descriptor. It panics if an
+// error is encountered. See TryGetField.
+func (m *Message) GetField(fd *desc.FieldDescriptor) interface{} {
+ if v, err := m.TryGetField(fd); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetField returns the value for the given field descriptor. An error is
+// returned if the given field descriptor does not belong to the right message
+// type.
+//
+// The Go type of the returned value, for scalar fields, is the same as protoc
+// would generate for the field (in a non-dynamic message). The table below
+// lists the scalar types and the corresponding Go types.
+// +-------------------------+-----------+
+// | Declared Type | Go Type |
+// +-------------------------+-----------+
+// | int32, sint32, sfixed32 | int32 |
+// | int64, sint64, sfixed64 | int64 |
+// | uint32, fixed32 | uint32 |
+// | uint64, fixed64 | uint64 |
+// | float | float32 |
+// | double | double32 |
+// | bool | bool |
+// | string | string |
+// | bytes | []byte |
+// +-------------------------+-----------+
+//
+// Values for enum fields will always be int32 values. You can use the enum
+// descriptor associated with the field to lookup value names with those values.
+// Values for message type fields may be an instance of the generated type *or*
+// may be another *dynamic.Message that represents the type.
+//
+// If the given field is a map field, the returned type will be
+// map[interface{}]interface{}. The actual concrete types of keys and values is
+// as described above. If the given field is a (non-map) repeated field, the
+// returned type is always []interface{}; the type of the actual elements is as
+// described above.
+//
+// If this message has no value for the given field, its default value is
+// returned. If the message is defined in a file with "proto3" syntax, the
+// default is always the zero value for the field. The default value for map and
+// repeated fields is a nil map or slice (respectively). For field's whose types
+// is a message, the default value is an empty message for "proto2" syntax or a
+// nil message for "proto3" syntax. Note that the in the latter case, a non-nil
+// interface with a nil pointer is returned, not a nil interface. Also note that
+// whether the returned value is an empty message or nil depends on if *this*
+// message was defined as "proto3" syntax, not the message type referred to by
+// the field's type.
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) but corresponds to an unknown field, the unknown value will be
+// parsed and become known. The parsed value will be returned, or an error will
+// be returned if the unknown value cannot be parsed according to the field
+// descriptor's type information.
+func (m *Message) TryGetField(fd *desc.FieldDescriptor) (interface{}, error) {
+ if err := m.checkField(fd); err != nil {
+ return nil, err
+ }
+ return m.getField(fd)
+}
+
+// GetFieldByName returns the value for the field with the given name. It panics
+// if an error is encountered. See TryGetFieldByName.
+func (m *Message) GetFieldByName(name string) interface{} {
+ if v, err := m.TryGetFieldByName(name); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetFieldByName returns the value for the field with the given name. An
+// error is returned if the given name is unknown. If the given name refers to
+// an extension field, it should be fully qualified and optionally enclosed in
+// parenthesis or brackets.
+//
+// If this message has no value for the given field, its default value is
+// returned. (See TryGetField for more info on types and default field values.)
+func (m *Message) TryGetFieldByName(name string) (interface{}, error) {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return nil, UnknownFieldNameError
+ }
+ return m.getField(fd)
+}
+
+// GetFieldByNumber returns the value for the field with the given tag number.
+// It panics if an error is encountered. See TryGetFieldByNumber.
+func (m *Message) GetFieldByNumber(tagNumber int) interface{} {
+ if v, err := m.TryGetFieldByNumber(tagNumber); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetFieldByNumber returns the value for the field with the given tag
+// number. An error is returned if the given tag is unknown.
+//
+// If this message has no value for the given field, its default value is
+// returned. (See TryGetField for more info on types and default field values.)
+func (m *Message) TryGetFieldByNumber(tagNumber int) (interface{}, error) {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return nil, UnknownTagNumberError
+ }
+ return m.getField(fd)
+}
+
+func (m *Message) getField(fd *desc.FieldDescriptor) (interface{}, error) {
+ return m.doGetField(fd, false)
+}
+
+func (m *Message) doGetField(fd *desc.FieldDescriptor, nilIfAbsent bool) (interface{}, error) {
+ res := m.values[fd.GetNumber()]
+ if res == nil {
+ var err error
+ if res, err = m.parseUnknownField(fd); err != nil {
+ return nil, err
+ }
+ if res == nil {
+ if nilIfAbsent {
+ return nil, nil
+ } else {
+ def := fd.GetDefaultValue()
+ if def != nil {
+ return def, nil
+ }
+ // GetDefaultValue only returns nil for message types
+ md := fd.GetMessageType()
+ if m.md.IsProto3() {
+ return nilMessage(md), nil
+ } else {
+ // for proto2, return default instance of message
+ return m.mf.NewMessage(md), nil
+ }
+ }
+ }
+ }
+ rt := reflect.TypeOf(res)
+ if rt.Kind() == reflect.Map {
+ // make defensive copies to prevent caller from storing illegal keys and values
+ m := res.(map[interface{}]interface{})
+ res := map[interface{}]interface{}{}
+ for k, v := range m {
+ res[k] = v
+ }
+ return res, nil
+ } else if rt.Kind() == reflect.Slice && rt != typeOfBytes {
+ // make defensive copies to prevent caller from storing illegal elements
+ sl := res.([]interface{})
+ res := make([]interface{}, len(sl))
+ copy(res, sl)
+ return res, nil
+ }
+ return res, nil
+}
+
+func nilMessage(md *desc.MessageDescriptor) interface{} {
+ // try to return a proper nil pointer
+ msgType := proto.MessageType(md.GetFullyQualifiedName())
+ if msgType != nil && msgType.Implements(typeOfProtoMessage) {
+ return reflect.Zero(msgType).Interface().(proto.Message)
+ }
+ // fallback to nil dynamic message pointer
+ return (*Message)(nil)
+}
+
+// HasField returns true if this message has a value for the given field. If the
+// given field is not valid (e.g. belongs to a different message type), false is
+// returned. If this message is defined in a file with "proto3" syntax, this
+// will return false even if a field was explicitly assigned its zero value (the
+// zero values for a field are intentionally indistinguishable from absent).
+func (m *Message) HasField(fd *desc.FieldDescriptor) bool {
+ if err := m.checkField(fd); err != nil {
+ return false
+ }
+ return m.HasFieldNumber(int(fd.GetNumber()))
+}
+
+// HasFieldName returns true if this message has a value for a field with the
+// given name. If the given name is unknown, this returns false.
+func (m *Message) HasFieldName(name string) bool {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return false
+ }
+ return m.HasFieldNumber(int(fd.GetNumber()))
+}
+
+// HasFieldNumber returns true if this message has a value for a field with the
+// given tag number. If the given tag is unknown, this returns false.
+func (m *Message) HasFieldNumber(tagNumber int) bool {
+ if _, ok := m.values[int32(tagNumber)]; ok {
+ return true
+ }
+ _, ok := m.unknownFields[int32(tagNumber)]
+ return ok
+}
+
+// SetField sets the value for the given field descriptor to the given value. It
+// panics if an error is encountered. See TrySetField.
+func (m *Message) SetField(fd *desc.FieldDescriptor, val interface{}) {
+ if err := m.TrySetField(fd, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TrySetField sets the value for the given field descriptor to the given value.
+// An error is returned if the given field descriptor does not belong to the
+// right message type or if the given value is not a correct/compatible type for
+// the given field.
+//
+// The Go type expected for a field is the same as TryGetField would return for
+// the field. So message values can be supplied as either the correct generated
+// message type or as a *dynamic.Message.
+//
+// Since it is cumbersome to work with dynamic messages, some concessions are
+// made to simplify usage regarding types:
+//
+// 1. If a numeric type is provided that can be converted *without loss or
+// overflow*, it is accepted. This allows for setting int64 fields using int
+// or int32 values. Similarly for uint64 with uint and uint32 values and for
+// float64 fields with float32 values.
+// 2. The value can be a named type, as long as its underlying type is correct.
+// 3. Map and repeated fields can be set using any kind of concrete map or
+// slice type, as long as the values within are all of the correct type. So
+// a field defined as a 'map<string, int32>` can be set using a
+// map[string]int32, a map[string]interface{}, or even a
+// map[interface{}]interface{}.
+// 4. Finally, dynamic code that chooses to not treat maps as a special-case
+// find that they can set map fields using a slice where each element is a
+// message that matches the implicit map-entry field message type.
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) it will become known. Subsequent operations using tag numbers or
+// names will be able to resolve the newly-known type. If the message has a
+// value for the unknown value, it is cleared, replaced by the given known
+// value.
+func (m *Message) TrySetField(fd *desc.FieldDescriptor, val interface{}) error {
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ return m.setField(fd, val)
+}
+
+// SetFieldByName sets the value for the field with the given name to the given
+// value. It panics if an error is encountered. See TrySetFieldByName.
+func (m *Message) SetFieldByName(name string, val interface{}) {
+ if err := m.TrySetFieldByName(name, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TrySetFieldByName sets the value for the field with the given name to the
+// given value. An error is returned if the given name is unknown or if the
+// given value has an incorrect type. If the given name refers to an extension
+// field, it should be fully qualified and optionally enclosed in parenthesis or
+// brackets.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TrySetFieldByName(name string, val interface{}) error {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ return m.setField(fd, val)
+}
+
+// SetFieldByNumber sets the value for the field with the given tag number to
+// the given value. It panics if an error is encountered. See
+// TrySetFieldByNumber.
+func (m *Message) SetFieldByNumber(tagNumber int, val interface{}) {
+ if err := m.TrySetFieldByNumber(tagNumber, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TrySetFieldByNumber sets the value for the field with the given tag number to
+// the given value. An error is returned if the given tag is unknown or if the
+// given value has an incorrect type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TrySetFieldByNumber(tagNumber int, val interface{}) error {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ return m.setField(fd, val)
+}
+
+func (m *Message) setField(fd *desc.FieldDescriptor, val interface{}) error {
+ var err error
+ if val, err = validFieldValue(fd, val); err != nil {
+ return err
+ }
+ m.internalSetField(fd, val)
+ return nil
+}
+
+func (m *Message) internalSetField(fd *desc.FieldDescriptor, val interface{}) {
+ if fd.IsRepeated() {
+ // Unset fields and zero-length fields are indistinguishable, in both
+ // proto2 and proto3 syntax
+ if reflect.ValueOf(val).Len() == 0 {
+ if m.values != nil {
+ delete(m.values, fd.GetNumber())
+ }
+ return
+ }
+ } else if m.md.IsProto3() && fd.GetOneOf() == nil {
+ // proto3 considers fields that are set to their zero value as unset
+ // (we already handled repeated fields above)
+ var equal bool
+ if b, ok := val.([]byte); ok {
+ // can't compare slices, so we have to special-case []byte values
+ equal = ok && bytes.Equal(b, fd.GetDefaultValue().([]byte))
+ } else {
+ defVal := fd.GetDefaultValue()
+ equal = defVal == val
+ if !equal && defVal == nil {
+ // above just checks if value is the nil interface,
+ // but we should also test if the given value is a
+ // nil pointer
+ rv := reflect.ValueOf(val)
+ if rv.Kind() == reflect.Ptr && rv.IsNil() {
+ equal = true
+ }
+ }
+ }
+ if equal {
+ if m.values != nil {
+ delete(m.values, fd.GetNumber())
+ }
+ return
+ }
+ }
+ if m.values == nil {
+ m.values = map[int32]interface{}{}
+ }
+ m.values[fd.GetNumber()] = val
+ // if this field is part of a one-of, make sure all other one-of choices are cleared
+ od := fd.GetOneOf()
+ if od != nil {
+ for _, other := range od.GetChoices() {
+ if other.GetNumber() != fd.GetNumber() {
+ delete(m.values, other.GetNumber())
+ }
+ }
+ }
+ // also clear any unknown fields
+ if m.unknownFields != nil {
+ delete(m.unknownFields, fd.GetNumber())
+ }
+ // and add this field if it was previously unknown
+ if existing := m.FindFieldDescriptor(fd.GetNumber()); existing == nil {
+ m.addField(fd)
+ }
+}
+
+func (m *Message) addField(fd *desc.FieldDescriptor) {
+ if m.extraFields == nil {
+ m.extraFields = map[int32]*desc.FieldDescriptor{}
+ }
+ m.extraFields[fd.GetNumber()] = fd
+}
+
+// ClearField removes any value for the given field. It panics if an error is
+// encountered. See TryClearField.
+func (m *Message) ClearField(fd *desc.FieldDescriptor) {
+ if err := m.TryClearField(fd); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryClearField removes any value for the given field. An error is returned if
+// the given field descriptor does not belong to the right message type.
+func (m *Message) TryClearField(fd *desc.FieldDescriptor) error {
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ m.clearField(fd)
+ return nil
+}
+
+// ClearFieldByName removes any value for the field with the given name. It
+// panics if an error is encountered. See TryClearFieldByName.
+func (m *Message) ClearFieldByName(name string) {
+ if err := m.TryClearFieldByName(name); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryClearFieldByName removes any value for the field with the given name. An
+// error is returned if the given name is unknown. If the given name refers to
+// an extension field, it should be fully qualified and optionally enclosed in
+// parenthesis or brackets.
+func (m *Message) TryClearFieldByName(name string) error {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ m.clearField(fd)
+ return nil
+}
+
+// ClearFieldByNumber removes any value for the field with the given tag number.
+// It panics if an error is encountered. See TryClearFieldByNumber.
+func (m *Message) ClearFieldByNumber(tagNumber int) {
+ if err := m.TryClearFieldByNumber(tagNumber); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryClearFieldByNumber removes any value for the field with the given tag
+// number. An error is returned if the given tag is unknown.
+func (m *Message) TryClearFieldByNumber(tagNumber int) error {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ m.clearField(fd)
+ return nil
+}
+
+func (m *Message) clearField(fd *desc.FieldDescriptor) {
+ // clear value
+ if m.values != nil {
+ delete(m.values, fd.GetNumber())
+ }
+ // also clear any unknown fields
+ if m.unknownFields != nil {
+ delete(m.unknownFields, fd.GetNumber())
+ }
+ // and add this field if it was previously unknown
+ if existing := m.FindFieldDescriptor(fd.GetNumber()); existing == nil {
+ m.addField(fd)
+ }
+}
+
+// GetOneOfField returns which of the given one-of's fields is set and the
+// corresponding value. It panics if an error is encountered. See
+// TryGetOneOfField.
+func (m *Message) GetOneOfField(od *desc.OneOfDescriptor) (*desc.FieldDescriptor, interface{}) {
+ if fd, val, err := m.TryGetOneOfField(od); err != nil {
+ panic(err.Error())
+ } else {
+ return fd, val
+ }
+}
+
+// TryGetOneOfField returns which of the given one-of's fields is set and the
+// corresponding value. An error is returned if the given one-of belongs to the
+// wrong message type. If the given one-of has no field set, this method will
+// return nil, nil.
+//
+// The type of the value, if one is set, is the same as would be returned by
+// TryGetField using the returned field descriptor.
+//
+// Like with TryGetField, if the given one-of contains any fields that are not
+// known (e.g. not present in this message's descriptor), they will become known
+// and any unknown value will be parsed (and become a known value on success).
+func (m *Message) TryGetOneOfField(od *desc.OneOfDescriptor) (*desc.FieldDescriptor, interface{}, error) {
+ if od.GetOwner().GetFullyQualifiedName() != m.md.GetFullyQualifiedName() {
+ return nil, nil, fmt.Errorf("given one-of, %s, is for wrong message type: %s; expecting %s", od.GetName(), od.GetOwner().GetFullyQualifiedName(), m.md.GetFullyQualifiedName())
+ }
+ for _, fd := range od.GetChoices() {
+ val, err := m.doGetField(fd, true)
+ if err != nil {
+ return nil, nil, err
+ }
+ if val != nil {
+ return fd, val, nil
+ }
+ }
+ return nil, nil, nil
+}
+
+// ClearOneOfField removes any value for any of the given one-of's fields. It
+// panics if an error is encountered. See TryClearOneOfField.
+func (m *Message) ClearOneOfField(od *desc.OneOfDescriptor) {
+ if err := m.TryClearOneOfField(od); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryClearOneOfField removes any value for any of the given one-of's fields. An
+// error is returned if the given one-of descriptor does not belong to the right
+// message type.
+func (m *Message) TryClearOneOfField(od *desc.OneOfDescriptor) error {
+ if od.GetOwner().GetFullyQualifiedName() != m.md.GetFullyQualifiedName() {
+ return fmt.Errorf("given one-of, %s, is for wrong message type: %s; expecting %s", od.GetName(), od.GetOwner().GetFullyQualifiedName(), m.md.GetFullyQualifiedName())
+ }
+ for _, fd := range od.GetChoices() {
+ m.clearField(fd)
+ }
+ return nil
+}
+
+// GetMapField returns the value for the given map field descriptor and given
+// key. It panics if an error is encountered. See TryGetMapField.
+func (m *Message) GetMapField(fd *desc.FieldDescriptor, key interface{}) interface{} {
+ if v, err := m.TryGetMapField(fd, key); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetMapField returns the value for the given map field descriptor and given
+// key. An error is returned if the given field descriptor does not belong to
+// the right message type or if it is not a map field.
+//
+// If the map field does not contain the requested key, this method returns
+// nil, nil. The Go type of the value returned mirrors the type that protoc
+// would generate for the field. (See TryGetField for more details on types).
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) but corresponds to an unknown field, the unknown value will be
+// parsed and become known. The parsed value will be searched for the requested
+// key and any value returned. An error will be returned if the unknown value
+// cannot be parsed according to the field descriptor's type information.
+func (m *Message) TryGetMapField(fd *desc.FieldDescriptor, key interface{}) (interface{}, error) {
+ if err := m.checkField(fd); err != nil {
+ return nil, err
+ }
+ return m.getMapField(fd, key)
+}
+
+// GetMapFieldByName returns the value for the map field with the given name and
+// given key. It panics if an error is encountered. See TryGetMapFieldByName.
+func (m *Message) GetMapFieldByName(name string, key interface{}) interface{} {
+ if v, err := m.TryGetMapFieldByName(name, key); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetMapFieldByName returns the value for the map field with the given name
+// and given key. An error is returned if the given name is unknown or if it
+// names a field that is not a map field.
+//
+// If this message has no value for the given field or the value has no value
+// for the requested key, then this method returns nil, nil.
+//
+// (See TryGetField for more info on types.)
+func (m *Message) TryGetMapFieldByName(name string, key interface{}) (interface{}, error) {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return nil, UnknownFieldNameError
+ }
+ return m.getMapField(fd, key)
+}
+
+// GetMapFieldByNumber returns the value for the map field with the given tag
+// number and given key. It panics if an error is encountered. See
+// TryGetMapFieldByNumber.
+func (m *Message) GetMapFieldByNumber(tagNumber int, key interface{}) interface{} {
+ if v, err := m.TryGetMapFieldByNumber(tagNumber, key); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetMapFieldByNumber returns the value for the map field with the given tag
+// number and given key. An error is returned if the given tag is unknown or if
+// it indicates a field that is not a map field.
+//
+// If this message has no value for the given field or the value has no value
+// for the requested key, then this method returns nil, nil.
+//
+// (See TryGetField for more info on types.)
+func (m *Message) TryGetMapFieldByNumber(tagNumber int, key interface{}) (interface{}, error) {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return nil, UnknownTagNumberError
+ }
+ return m.getMapField(fd, key)
+}
+
+func (m *Message) getMapField(fd *desc.FieldDescriptor, key interface{}) (interface{}, error) {
+ if !fd.IsMap() {
+ return nil, FieldIsNotMapError
+ }
+ kfd := fd.GetMessageType().GetFields()[0]
+ ki, err := validElementFieldValue(kfd, key, false)
+ if err != nil {
+ return nil, err
+ }
+ mp := m.values[fd.GetNumber()]
+ if mp == nil {
+ if mp, err = m.parseUnknownField(fd); err != nil {
+ return nil, err
+ } else if mp == nil {
+ return nil, nil
+ }
+ }
+ return mp.(map[interface{}]interface{})[ki], nil
+}
+
+// ForEachMapFieldEntry executes the given function for each entry in the map
+// value for the given field descriptor. It stops iteration if the function
+// returns false. It panics if an error is encountered. See
+// TryForEachMapFieldEntry.
+func (m *Message) ForEachMapFieldEntry(fd *desc.FieldDescriptor, fn func(key, val interface{}) bool) {
+ if err := m.TryForEachMapFieldEntry(fd, fn); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryForEachMapFieldEntry executes the given function for each entry in the map
+// value for the given field descriptor. An error is returned if the given field
+// descriptor does not belong to the right message type or if it is not a map
+// field.
+//
+// Iteration ends either when all entries have been examined or when the given
+// function returns false. So the function is expected to return true for normal
+// iteration and false to break out. If this message has no value for the given
+// field, it returns without invoking the given function.
+//
+// The Go type of the key and value supplied to the function mirrors the type
+// that protoc would generate for the field. (See TryGetField for more details
+// on types).
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) but corresponds to an unknown field, the unknown value will be
+// parsed and become known. The parsed value will be searched for the requested
+// key and any value returned. An error will be returned if the unknown value
+// cannot be parsed according to the field descriptor's type information.
+func (m *Message) TryForEachMapFieldEntry(fd *desc.FieldDescriptor, fn func(key, val interface{}) bool) error {
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ return m.forEachMapFieldEntry(fd, fn)
+}
+
+// ForEachMapFieldEntryByName executes the given function for each entry in the
+// map value for the field with the given name. It stops iteration if the
+// function returns false. It panics if an error is encountered. See
+// TryForEachMapFieldEntryByName.
+func (m *Message) ForEachMapFieldEntryByName(name string, fn func(key, val interface{}) bool) {
+ if err := m.TryForEachMapFieldEntryByName(name, fn); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryForEachMapFieldEntryByName executes the given function for each entry in
+// the map value for the field with the given name. It stops iteration if the
+// function returns false. An error is returned if the given name is unknown or
+// if it names a field that is not a map field.
+//
+// If this message has no value for the given field, it returns without ever
+// invoking the given function.
+//
+// (See TryGetField for more info on types supplied to the function.)
+func (m *Message) TryForEachMapFieldEntryByName(name string, fn func(key, val interface{}) bool) error {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ return m.forEachMapFieldEntry(fd, fn)
+}
+
+// ForEachMapFieldEntryByNumber executes the given function for each entry in
+// the map value for the field with the given tag number. It stops iteration if
+// the function returns false. It panics if an error is encountered. See
+// TryForEachMapFieldEntryByNumber.
+func (m *Message) ForEachMapFieldEntryByNumber(tagNumber int, fn func(key, val interface{}) bool) {
+ if err := m.TryForEachMapFieldEntryByNumber(tagNumber, fn); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryForEachMapFieldEntryByNumber executes the given function for each entry in
+// the map value for the field with the given tag number. It stops iteration if
+// the function returns false. An error is returned if the given tag is unknown
+// or if it indicates a field that is not a map field.
+//
+// If this message has no value for the given field, it returns without ever
+// invoking the given function.
+//
+// (See TryGetField for more info on types supplied to the function.)
+func (m *Message) TryForEachMapFieldEntryByNumber(tagNumber int, fn func(key, val interface{}) bool) error {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ return m.forEachMapFieldEntry(fd, fn)
+}
+
+func (m *Message) forEachMapFieldEntry(fd *desc.FieldDescriptor, fn func(key, val interface{}) bool) error {
+ if !fd.IsMap() {
+ return FieldIsNotMapError
+ }
+ mp := m.values[fd.GetNumber()]
+ if mp == nil {
+ if mp, err := m.parseUnknownField(fd); err != nil {
+ return err
+ } else if mp == nil {
+ return nil
+ }
+ }
+ for k, v := range mp.(map[interface{}]interface{}) {
+ if !fn(k, v) {
+ break
+ }
+ }
+ return nil
+}
+
+// PutMapField sets the value for the given map field descriptor and given key
+// to the given value. It panics if an error is encountered. See TryPutMapField.
+func (m *Message) PutMapField(fd *desc.FieldDescriptor, key interface{}, val interface{}) {
+ if err := m.TryPutMapField(fd, key, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryPutMapField sets the value for the given map field descriptor and given
+// key to the given value. An error is returned if the given field descriptor
+// does not belong to the right message type, if the given field is not a map
+// field, or if the given value is not a correct/compatible type for the given
+// field.
+//
+// The Go type expected for a field is the same as required by TrySetField for
+// a field with the same type as the map's value type.
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) it will become known. Subsequent operations using tag numbers or
+// names will be able to resolve the newly-known type. If the message has a
+// value for the unknown value, it is cleared, replaced by the given known
+// value.
+func (m *Message) TryPutMapField(fd *desc.FieldDescriptor, key interface{}, val interface{}) error {
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ return m.putMapField(fd, key, val)
+}
+
+// PutMapFieldByName sets the value for the map field with the given name and
+// given key to the given value. It panics if an error is encountered. See
+// TryPutMapFieldByName.
+func (m *Message) PutMapFieldByName(name string, key interface{}, val interface{}) {
+ if err := m.TryPutMapFieldByName(name, key, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryPutMapFieldByName sets the value for the map field with the given name and
+// the given key to the given value. An error is returned if the given name is
+// unknown, if it names a field that is not a map, or if the given value has an
+// incorrect type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TryPutMapFieldByName(name string, key interface{}, val interface{}) error {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ return m.putMapField(fd, key, val)
+}
+
+// PutMapFieldByNumber sets the value for the map field with the given tag
+// number and given key to the given value. It panics if an error is
+// encountered. See TryPutMapFieldByNumber.
+func (m *Message) PutMapFieldByNumber(tagNumber int, key interface{}, val interface{}) {
+ if err := m.TryPutMapFieldByNumber(tagNumber, key, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryPutMapFieldByNumber sets the value for the map field with the given tag
+// number and the given key to the given value. An error is returned if the
+// given tag is unknown, if it indicates a field that is not a map, or if the
+// given value has an incorrect type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TryPutMapFieldByNumber(tagNumber int, key interface{}, val interface{}) error {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ return m.putMapField(fd, key, val)
+}
+
+func (m *Message) putMapField(fd *desc.FieldDescriptor, key interface{}, val interface{}) error {
+ if !fd.IsMap() {
+ return FieldIsNotMapError
+ }
+ kfd := fd.GetMessageType().GetFields()[0]
+ ki, err := validElementFieldValue(kfd, key, false)
+ if err != nil {
+ return err
+ }
+ vfd := fd.GetMessageType().GetFields()[1]
+ vi, err := validElementFieldValue(vfd, val, true)
+ if err != nil {
+ return err
+ }
+ mp := m.values[fd.GetNumber()]
+ if mp == nil {
+ if mp, err = m.parseUnknownField(fd); err != nil {
+ return err
+ } else if mp == nil {
+ m.internalSetField(fd, map[interface{}]interface{}{ki: vi})
+ return nil
+ }
+ }
+ mp.(map[interface{}]interface{})[ki] = vi
+ return nil
+}
+
+// RemoveMapField changes the value for the given field descriptor by removing
+// any value associated with the given key. It panics if an error is
+// encountered. See TryRemoveMapField.
+func (m *Message) RemoveMapField(fd *desc.FieldDescriptor, key interface{}) {
+ if err := m.TryRemoveMapField(fd, key); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryRemoveMapField changes the value for the given field descriptor by
+// removing any value associated with the given key. An error is returned if the
+// given field descriptor does not belong to the right message type or if the
+// given field is not a map field.
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) it will become known. Subsequent operations using tag numbers or
+// names will be able to resolve the newly-known type. If the message has a
+// value for the unknown value, it is parsed and any value for the given key
+// removed.
+func (m *Message) TryRemoveMapField(fd *desc.FieldDescriptor, key interface{}) error {
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ return m.removeMapField(fd, key)
+}
+
+// RemoveMapFieldByName changes the value for the field with the given name by
+// removing any value associated with the given key. It panics if an error is
+// encountered. See TryRemoveMapFieldByName.
+func (m *Message) RemoveMapFieldByName(name string, key interface{}) {
+ if err := m.TryRemoveMapFieldByName(name, key); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryRemoveMapFieldByName changes the value for the field with the given name
+// by removing any value associated with the given key. An error is returned if
+// the given name is unknown or if it names a field that is not a map.
+func (m *Message) TryRemoveMapFieldByName(name string, key interface{}) error {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ return m.removeMapField(fd, key)
+}
+
+// RemoveMapFieldByNumber changes the value for the field with the given tag
+// number by removing any value associated with the given key. It panics if an
+// error is encountered. See TryRemoveMapFieldByNumber.
+func (m *Message) RemoveMapFieldByNumber(tagNumber int, key interface{}) {
+ if err := m.TryRemoveMapFieldByNumber(tagNumber, key); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryRemoveMapFieldByNumber changes the value for the field with the given tag
+// number by removing any value associated with the given key. An error is
+// returned if the given tag is unknown or if it indicates a field that is not
+// a map.
+func (m *Message) TryRemoveMapFieldByNumber(tagNumber int, key interface{}) error {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ return m.removeMapField(fd, key)
+}
+
+func (m *Message) removeMapField(fd *desc.FieldDescriptor, key interface{}) error {
+ if !fd.IsMap() {
+ return FieldIsNotMapError
+ }
+ kfd := fd.GetMessageType().GetFields()[0]
+ ki, err := validElementFieldValue(kfd, key, false)
+ if err != nil {
+ return err
+ }
+ mp := m.values[fd.GetNumber()]
+ if mp == nil {
+ if mp, err = m.parseUnknownField(fd); err != nil {
+ return err
+ } else if mp == nil {
+ return nil
+ }
+ }
+ res := mp.(map[interface{}]interface{})
+ delete(res, ki)
+ if len(res) == 0 {
+ delete(m.values, fd.GetNumber())
+ }
+ return nil
+}
+
+// FieldLength returns the number of elements in this message for the given
+// field descriptor. It panics if an error is encountered. See TryFieldLength.
+func (m *Message) FieldLength(fd *desc.FieldDescriptor) int {
+ l, err := m.TryFieldLength(fd)
+ if err != nil {
+ panic(err.Error())
+ }
+ return l
+}
+
+// TryFieldLength returns the number of elements in this message for the given
+// field descriptor. An error is returned if the given field descriptor does not
+// belong to the right message type or if it is neither a map field nor a
+// repeated field.
+func (m *Message) TryFieldLength(fd *desc.FieldDescriptor) (int, error) {
+ if err := m.checkField(fd); err != nil {
+ return 0, err
+ }
+ return m.fieldLength(fd)
+}
+
+// FieldLengthByName returns the number of elements in this message for the
+// field with the given name. It panics if an error is encountered. See
+// TryFieldLengthByName.
+func (m *Message) FieldLengthByName(name string) int {
+ l, err := m.TryFieldLengthByName(name)
+ if err != nil {
+ panic(err.Error())
+ }
+ return l
+}
+
+// TryFieldLengthByName returns the number of elements in this message for the
+// field with the given name. An error is returned if the given name is unknown
+// or if the named field is neither a map field nor a repeated field.
+func (m *Message) TryFieldLengthByName(name string) (int, error) {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return 0, UnknownFieldNameError
+ }
+ return m.fieldLength(fd)
+}
+
+// FieldLengthByNumber returns the number of elements in this message for the
+// field with the given tag number. It panics if an error is encountered. See
+// TryFieldLengthByNumber.
+func (m *Message) FieldLengthByNumber(tagNumber int32) int {
+ l, err := m.TryFieldLengthByNumber(tagNumber)
+ if err != nil {
+ panic(err.Error())
+ }
+ return l
+}
+
+// TryFieldLengthByNumber returns the number of elements in this message for the
+// field with the given tag number. An error is returned if the given tag is
+// unknown or if the named field is neither a map field nor a repeated field.
+func (m *Message) TryFieldLengthByNumber(tagNumber int32) (int, error) {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return 0, UnknownTagNumberError
+ }
+ return m.fieldLength(fd)
+}
+
+func (m *Message) fieldLength(fd *desc.FieldDescriptor) (int, error) {
+ if !fd.IsRepeated() {
+ return 0, FieldIsNotRepeatedError
+ }
+ val := m.values[fd.GetNumber()]
+ if val == nil {
+ var err error
+ if val, err = m.parseUnknownField(fd); err != nil {
+ return 0, err
+ } else if val == nil {
+ return 0, nil
+ }
+ }
+ if sl, ok := val.([]interface{}); ok {
+ return len(sl), nil
+ } else if mp, ok := val.(map[interface{}]interface{}); ok {
+ return len(mp), nil
+ }
+ return 0, nil
+}
+
+// GetRepeatedField returns the value for the given repeated field descriptor at
+// the given index. It panics if an error is encountered. See
+// TryGetRepeatedField.
+func (m *Message) GetRepeatedField(fd *desc.FieldDescriptor, index int) interface{} {
+ if v, err := m.TryGetRepeatedField(fd, index); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetRepeatedField returns the value for the given repeated field descriptor
+// at the given index. An error is returned if the given field descriptor does
+// not belong to the right message type, if it is not a repeated field, or if
+// the given index is out of range (less than zero or greater than or equal to
+// the length of the repeated field). Also, even though map fields technically
+// are repeated fields, if the given field is a map field an error will result:
+// map representation does not lend itself to random access by index.
+//
+// The Go type of the value returned mirrors the type that protoc would generate
+// for the field's element type. (See TryGetField for more details on types).
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) but corresponds to an unknown field, the unknown value will be
+// parsed and become known. The value at the given index in the parsed value
+// will be returned. An error will be returned if the unknown value cannot be
+// parsed according to the field descriptor's type information.
+func (m *Message) TryGetRepeatedField(fd *desc.FieldDescriptor, index int) (interface{}, error) {
+ if index < 0 {
+ return nil, IndexOutOfRangeError
+ }
+ if err := m.checkField(fd); err != nil {
+ return nil, err
+ }
+ return m.getRepeatedField(fd, index)
+}
+
+// GetRepeatedFieldByName returns the value for the repeated field with the
+// given name at the given index. It panics if an error is encountered. See
+// TryGetRepeatedFieldByName.
+func (m *Message) GetRepeatedFieldByName(name string, index int) interface{} {
+ if v, err := m.TryGetRepeatedFieldByName(name, index); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetRepeatedFieldByName returns the value for the repeated field with the
+// given name at the given index. An error is returned if the given name is
+// unknown, if it names a field that is not a repeated field (or is a map
+// field), or if the given index is out of range (less than zero or greater
+// than or equal to the length of the repeated field).
+//
+// (See TryGetField for more info on types.)
+func (m *Message) TryGetRepeatedFieldByName(name string, index int) (interface{}, error) {
+ if index < 0 {
+ return nil, IndexOutOfRangeError
+ }
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return nil, UnknownFieldNameError
+ }
+ return m.getRepeatedField(fd, index)
+}
+
+// GetRepeatedFieldByNumber returns the value for the repeated field with the
+// given tag number at the given index. It panics if an error is encountered.
+// See TryGetRepeatedFieldByNumber.
+func (m *Message) GetRepeatedFieldByNumber(tagNumber int, index int) interface{} {
+ if v, err := m.TryGetRepeatedFieldByNumber(tagNumber, index); err != nil {
+ panic(err.Error())
+ } else {
+ return v
+ }
+}
+
+// TryGetRepeatedFieldByNumber returns the value for the repeated field with the
+// given tag number at the given index. An error is returned if the given tag is
+// unknown, if it indicates a field that is not a repeated field (or is a map
+// field), or if the given index is out of range (less than zero or greater than
+// or equal to the length of the repeated field).
+//
+// (See TryGetField for more info on types.)
+func (m *Message) TryGetRepeatedFieldByNumber(tagNumber int, index int) (interface{}, error) {
+ if index < 0 {
+ return nil, IndexOutOfRangeError
+ }
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return nil, UnknownTagNumberError
+ }
+ return m.getRepeatedField(fd, index)
+}
+
+func (m *Message) getRepeatedField(fd *desc.FieldDescriptor, index int) (interface{}, error) {
+ if fd.IsMap() || !fd.IsRepeated() {
+ return nil, FieldIsNotRepeatedError
+ }
+ sl := m.values[fd.GetNumber()]
+ if sl == nil {
+ var err error
+ if sl, err = m.parseUnknownField(fd); err != nil {
+ return nil, err
+ } else if sl == nil {
+ return nil, IndexOutOfRangeError
+ }
+ }
+ res := sl.([]interface{})
+ if index >= len(res) {
+ return nil, IndexOutOfRangeError
+ }
+ return res[index], nil
+}
+
+// AddRepeatedField appends the given value to the given repeated field. It
+// panics if an error is encountered. See TryAddRepeatedField.
+func (m *Message) AddRepeatedField(fd *desc.FieldDescriptor, val interface{}) {
+ if err := m.TryAddRepeatedField(fd, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryAddRepeatedField appends the given value to the given repeated field. An
+// error is returned if the given field descriptor does not belong to the right
+// message type, if the given field is not repeated, or if the given value is
+// not a correct/compatible type for the given field. If the given field is a
+// map field, the call will succeed if the given value is an instance of the
+// map's entry message type.
+//
+// The Go type expected for a field is the same as required by TrySetField for
+// a non-repeated field of the same type.
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) it will become known. Subsequent operations using tag numbers or
+// names will be able to resolve the newly-known type. If the message has a
+// value for the unknown value, it is parsed and the given value is appended to
+// it.
+func (m *Message) TryAddRepeatedField(fd *desc.FieldDescriptor, val interface{}) error {
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ return m.addRepeatedField(fd, val)
+}
+
+// AddRepeatedFieldByName appends the given value to the repeated field with the
+// given name. It panics if an error is encountered. See
+// TryAddRepeatedFieldByName.
+func (m *Message) AddRepeatedFieldByName(name string, val interface{}) {
+ if err := m.TryAddRepeatedFieldByName(name, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryAddRepeatedFieldByName appends the given value to the repeated field with
+// the given name. An error is returned if the given name is unknown, if it
+// names a field that is not repeated, or if the given value has an incorrect
+// type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TryAddRepeatedFieldByName(name string, val interface{}) error {
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ return m.addRepeatedField(fd, val)
+}
+
+// AddRepeatedFieldByNumber appends the given value to the repeated field with
+// the given tag number. It panics if an error is encountered. See
+// TryAddRepeatedFieldByNumber.
+func (m *Message) AddRepeatedFieldByNumber(tagNumber int, val interface{}) {
+ if err := m.TryAddRepeatedFieldByNumber(tagNumber, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TryAddRepeatedFieldByNumber appends the given value to the repeated field
+// with the given tag number. An error is returned if the given tag is unknown,
+// if it indicates a field that is not repeated, or if the given value has an
+// incorrect type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TryAddRepeatedFieldByNumber(tagNumber int, val interface{}) error {
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ return m.addRepeatedField(fd, val)
+}
+
+func (m *Message) addRepeatedField(fd *desc.FieldDescriptor, val interface{}) error {
+ if !fd.IsRepeated() {
+ return FieldIsNotRepeatedError
+ }
+ val, err := validElementFieldValue(fd, val, false)
+ if err != nil {
+ return err
+ }
+
+ if fd.IsMap() {
+ // We're lenient. Just as we allow setting a map field to a slice of entry messages, we also allow
+ // adding entries one at a time (as if the field were a normal repeated field).
+ msg := val.(proto.Message)
+ dm, err := asDynamicMessage(msg, fd.GetMessageType(), m.mf)
+ if err != nil {
+ return err
+ }
+ k, err := dm.TryGetFieldByNumber(1)
+ if err != nil {
+ return err
+ }
+ v, err := dm.TryGetFieldByNumber(2)
+ if err != nil {
+ return err
+ }
+ return m.putMapField(fd, k, v)
+ }
+
+ sl := m.values[fd.GetNumber()]
+ if sl == nil {
+ if sl, err = m.parseUnknownField(fd); err != nil {
+ return err
+ } else if sl == nil {
+ sl = []interface{}{}
+ }
+ }
+ res := sl.([]interface{})
+ res = append(res, val)
+ m.internalSetField(fd, res)
+ return nil
+}
+
+// SetRepeatedField sets the value for the given repeated field descriptor and
+// given index to the given value. It panics if an error is encountered. See
+// SetRepeatedField.
+func (m *Message) SetRepeatedField(fd *desc.FieldDescriptor, index int, val interface{}) {
+ if err := m.TrySetRepeatedField(fd, index, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TrySetRepeatedField sets the value for the given repeated field descriptor
+// and given index to the given value. An error is returned if the given field
+// descriptor does not belong to the right message type, if the given field is
+// not repeated, or if the given value is not a correct/compatible type for the
+// given field. Also, even though map fields technically are repeated fields, if
+// the given field is a map field an error will result: map representation does
+// not lend itself to random access by index.
+//
+// The Go type expected for a field is the same as required by TrySetField for
+// a non-repeated field of the same type.
+//
+// If the given field descriptor is not known (e.g. not present in the message
+// descriptor) it will become known. Subsequent operations using tag numbers or
+// names will be able to resolve the newly-known type. If the message has a
+// value for the unknown value, it is parsed and the element at the given index
+// is replaced with the given value.
+func (m *Message) TrySetRepeatedField(fd *desc.FieldDescriptor, index int, val interface{}) error {
+ if index < 0 {
+ return IndexOutOfRangeError
+ }
+ if err := m.checkField(fd); err != nil {
+ return err
+ }
+ return m.setRepeatedField(fd, index, val)
+}
+
+// SetRepeatedFieldByName sets the value for the repeated field with the given
+// name and given index to the given value. It panics if an error is
+// encountered. See TrySetRepeatedFieldByName.
+func (m *Message) SetRepeatedFieldByName(name string, index int, val interface{}) {
+ if err := m.TrySetRepeatedFieldByName(name, index, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TrySetRepeatedFieldByName sets the value for the repeated field with the
+// given name and the given index to the given value. An error is returned if
+// the given name is unknown, if it names a field that is not repeated (or is a
+// map field), or if the given value has an incorrect type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TrySetRepeatedFieldByName(name string, index int, val interface{}) error {
+ if index < 0 {
+ return IndexOutOfRangeError
+ }
+ fd := m.FindFieldDescriptorByName(name)
+ if fd == nil {
+ return UnknownFieldNameError
+ }
+ return m.setRepeatedField(fd, index, val)
+}
+
+// SetRepeatedFieldByNumber sets the value for the repeated field with the given
+// tag number and given index to the given value. It panics if an error is
+// encountered. See TrySetRepeatedFieldByNumber.
+func (m *Message) SetRepeatedFieldByNumber(tagNumber int, index int, val interface{}) {
+ if err := m.TrySetRepeatedFieldByNumber(tagNumber, index, val); err != nil {
+ panic(err.Error())
+ }
+}
+
+// TrySetRepeatedFieldByNumber sets the value for the repeated field with the
+// given tag number and the given index to the given value. An error is returned
+// if the given tag is unknown, if it indicates a field that is not repeated (or
+// is a map field), or if the given value has an incorrect type.
+//
+// (See TrySetField for more info on types.)
+func (m *Message) TrySetRepeatedFieldByNumber(tagNumber int, index int, val interface{}) error {
+ if index < 0 {
+ return IndexOutOfRangeError
+ }
+ fd := m.FindFieldDescriptor(int32(tagNumber))
+ if fd == nil {
+ return UnknownTagNumberError
+ }
+ return m.setRepeatedField(fd, index, val)
+}
+
+func (m *Message) setRepeatedField(fd *desc.FieldDescriptor, index int, val interface{}) error {
+ if fd.IsMap() || !fd.IsRepeated() {
+ return FieldIsNotRepeatedError
+ }
+ val, err := validElementFieldValue(fd, val, false)
+ if err != nil {
+ return err
+ }
+ sl := m.values[fd.GetNumber()]
+ if sl == nil {
+ if sl, err = m.parseUnknownField(fd); err != nil {
+ return err
+ } else if sl == nil {
+ return IndexOutOfRangeError
+ }
+ }
+ res := sl.([]interface{})
+ if index >= len(res) {
+ return IndexOutOfRangeError
+ }
+ res[index] = val
+ return nil
+}
+
+// GetUnknownField gets the value(s) for the given unknown tag number. If this
+// message has no unknown fields with the given tag, nil is returned.
+func (m *Message) GetUnknownField(tagNumber int32) []UnknownField {
+ if u, ok := m.unknownFields[tagNumber]; ok {
+ return u
+ } else {
+ return nil
+ }
+}
+
+func (m *Message) parseUnknownField(fd *desc.FieldDescriptor) (interface{}, error) {
+ unks, ok := m.unknownFields[fd.GetNumber()]
+ if !ok {
+ return nil, nil
+ }
+ var v interface{}
+ var sl []interface{}
+ var mp map[interface{}]interface{}
+ if fd.IsMap() {
+ mp = map[interface{}]interface{}{}
+ }
+ var err error
+ for _, unk := range unks {
+ var val interface{}
+ if unk.Encoding == proto.WireBytes || unk.Encoding == proto.WireStartGroup {
+ val, err = codec.DecodeLengthDelimitedField(fd, unk.Contents, m.mf)
+ } else {
+ val, err = codec.DecodeScalarField(fd, unk.Value)
+ }
+ if err != nil {
+ return nil, err
+ }
+ if fd.IsMap() {
+ newEntry := val.(*Message)
+ kk, err := newEntry.TryGetFieldByNumber(1)
+ if err != nil {
+ return nil, err
+ }
+ vv, err := newEntry.TryGetFieldByNumber(2)
+ if err != nil {
+ return nil, err
+ }
+ mp[kk] = vv
+ v = mp
+ } else if fd.IsRepeated() {
+ t := reflect.TypeOf(val)
+ if t.Kind() == reflect.Slice && t != typeOfBytes {
+ // append slices if we unmarshalled a packed repeated field
+ newVals := val.([]interface{})
+ sl = append(sl, newVals...)
+ } else {
+ sl = append(sl, val)
+ }
+ v = sl
+ } else {
+ v = val
+ }
+ }
+ m.internalSetField(fd, v)
+ return v, nil
+}
+
+func validFieldValue(fd *desc.FieldDescriptor, val interface{}) (interface{}, error) {
+ return validFieldValueForRv(fd, reflect.ValueOf(val))
+}
+
+func validFieldValueForRv(fd *desc.FieldDescriptor, val reflect.Value) (interface{}, error) {
+ if fd.IsMap() && val.Kind() == reflect.Map {
+ return validFieldValueForMapField(fd, val)
+ }
+
+ if fd.IsRepeated() { // this will also catch map fields where given value was not a map
+ if val.Kind() != reflect.Array && val.Kind() != reflect.Slice {
+ if fd.IsMap() {
+ return nil, fmt.Errorf("value for map field must be a map; instead was %v", val.Type())
+ } else {
+ return nil, fmt.Errorf("value for repeated field must be a slice; instead was %v", val.Type())
+ }
+ }
+
+ if fd.IsMap() {
+ // value should be a slice of entry messages that we need convert into a map[interface{}]interface{}
+ m := map[interface{}]interface{}{}
+ for i := 0; i < val.Len(); i++ {
+ e, err := validElementFieldValue(fd, val.Index(i).Interface(), false)
+ if err != nil {
+ return nil, err
+ }
+ msg := e.(proto.Message)
+ dm, err := asDynamicMessage(msg, fd.GetMessageType(), nil)
+ if err != nil {
+ return nil, err
+ }
+ k, err := dm.TryGetFieldByNumber(1)
+ if err != nil {
+ return nil, err
+ }
+ v, err := dm.TryGetFieldByNumber(2)
+ if err != nil {
+ return nil, err
+ }
+ m[k] = v
+ }
+ return m, nil
+ }
+
+ // make a defensive copy while checking contents (also converts to []interface{})
+ s := make([]interface{}, val.Len())
+ for i := 0; i < val.Len(); i++ {
+ ev := val.Index(i)
+ if ev.Kind() == reflect.Interface {
+ // unwrap it
+ ev = reflect.ValueOf(ev.Interface())
+ }
+ e, err := validElementFieldValueForRv(fd, ev, false)
+ if err != nil {
+ return nil, err
+ }
+ s[i] = e
+ }
+
+ return s, nil
+ }
+
+ return validElementFieldValueForRv(fd, val, false)
+}
+
+func asDynamicMessage(m proto.Message, md *desc.MessageDescriptor, mf *MessageFactory) (*Message, error) {
+ if dm, ok := m.(*Message); ok {
+ return dm, nil
+ }
+ dm := NewMessageWithMessageFactory(md, mf)
+ if err := dm.mergeFrom(m); err != nil {
+ return nil, err
+ }
+ return dm, nil
+}
+
+func validElementFieldValue(fd *desc.FieldDescriptor, val interface{}, allowNilMessage bool) (interface{}, error) {
+ return validElementFieldValueForRv(fd, reflect.ValueOf(val), allowNilMessage)
+}
+
+func validElementFieldValueForRv(fd *desc.FieldDescriptor, val reflect.Value, allowNilMessage bool) (interface{}, error) {
+ t := fd.GetType()
+ if !val.IsValid() {
+ return nil, typeError(fd, nil)
+ }
+
+ switch t {
+ case descriptor.FieldDescriptorProto_TYPE_SFIXED32,
+ descriptor.FieldDescriptorProto_TYPE_INT32,
+ descriptor.FieldDescriptorProto_TYPE_SINT32,
+ descriptor.FieldDescriptorProto_TYPE_ENUM:
+ return toInt32(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_SFIXED64,
+ descriptor.FieldDescriptorProto_TYPE_INT64,
+ descriptor.FieldDescriptorProto_TYPE_SINT64:
+ return toInt64(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_FIXED32,
+ descriptor.FieldDescriptorProto_TYPE_UINT32:
+ return toUint32(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_FIXED64,
+ descriptor.FieldDescriptorProto_TYPE_UINT64:
+ return toUint64(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_FLOAT:
+ return toFloat32(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
+ return toFloat64(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_BOOL:
+ return toBool(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_BYTES:
+ return toBytes(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_STRING:
+ return toString(reflect.Indirect(val), fd)
+
+ case descriptor.FieldDescriptorProto_TYPE_MESSAGE,
+ descriptor.FieldDescriptorProto_TYPE_GROUP:
+ m, err := asMessage(val, fd.GetFullyQualifiedName())
+ // check that message is correct type
+ if err != nil {
+ return nil, err
+ }
+ var msgType string
+ if dm, ok := m.(*Message); ok {
+ if allowNilMessage && dm == nil {
+ // if dm == nil, we'll panic below, so early out if that is allowed
+ // (only allowed for map values, to indicate an entry w/ no value)
+ return m, nil
+ }
+ msgType = dm.GetMessageDescriptor().GetFullyQualifiedName()
+ } else {
+ msgType = proto.MessageName(m)
+ }
+ if msgType != fd.GetMessageType().GetFullyQualifiedName() {
+ return nil, fmt.Errorf("message field %s requires value of type %s; received %s", fd.GetFullyQualifiedName(), fd.GetMessageType().GetFullyQualifiedName(), msgType)
+ }
+ return m, nil
+
+ default:
+ return nil, fmt.Errorf("unable to handle unrecognized field type: %v", fd.GetType())
+ }
+}
+
+func toInt32(v reflect.Value, fd *desc.FieldDescriptor) (int32, error) {
+ if v.Kind() == reflect.Int32 {
+ return int32(v.Int()), nil
+ }
+ return 0, typeError(fd, v.Type())
+}
+
+func toUint32(v reflect.Value, fd *desc.FieldDescriptor) (uint32, error) {
+ if v.Kind() == reflect.Uint32 {
+ return uint32(v.Uint()), nil
+ }
+ return 0, typeError(fd, v.Type())
+}
+
+func toFloat32(v reflect.Value, fd *desc.FieldDescriptor) (float32, error) {
+ if v.Kind() == reflect.Float32 {
+ return float32(v.Float()), nil
+ }
+ return 0, typeError(fd, v.Type())
+}
+
+func toInt64(v reflect.Value, fd *desc.FieldDescriptor) (int64, error) {
+ if v.Kind() == reflect.Int64 || v.Kind() == reflect.Int || v.Kind() == reflect.Int32 {
+ return v.Int(), nil
+ }
+ return 0, typeError(fd, v.Type())
+}
+
+func toUint64(v reflect.Value, fd *desc.FieldDescriptor) (uint64, error) {
+ if v.Kind() == reflect.Uint64 || v.Kind() == reflect.Uint || v.Kind() == reflect.Uint32 {
+ return v.Uint(), nil
+ }
+ return 0, typeError(fd, v.Type())
+}
+
+func toFloat64(v reflect.Value, fd *desc.FieldDescriptor) (float64, error) {
+ if v.Kind() == reflect.Float64 || v.Kind() == reflect.Float32 {
+ return v.Float(), nil
+ }
+ return 0, typeError(fd, v.Type())
+}
+
+func toBool(v reflect.Value, fd *desc.FieldDescriptor) (bool, error) {
+ if v.Kind() == reflect.Bool {
+ return v.Bool(), nil
+ }
+ return false, typeError(fd, v.Type())
+}
+
+func toBytes(v reflect.Value, fd *desc.FieldDescriptor) ([]byte, error) {
+ if v.Kind() == reflect.Slice && v.Type().Elem().Kind() == reflect.Uint8 {
+ return v.Bytes(), nil
+ }
+ return nil, typeError(fd, v.Type())
+}
+
+func toString(v reflect.Value, fd *desc.FieldDescriptor) (string, error) {
+ if v.Kind() == reflect.String {
+ return v.String(), nil
+ }
+ return "", typeError(fd, v.Type())
+}
+
+func typeError(fd *desc.FieldDescriptor, t reflect.Type) error {
+ return fmt.Errorf(
+ "%s field %s is not compatible with value of type %v",
+ getTypeString(fd), fd.GetFullyQualifiedName(), t)
+}
+
+func getTypeString(fd *desc.FieldDescriptor) string {
+ return strings.ToLower(fd.GetType().String())
+}
+
+func asMessage(v reflect.Value, fieldName string) (proto.Message, error) {
+ t := v.Type()
+ // we need a pointer to a struct that implements proto.Message
+ if t.Kind() != reflect.Ptr || t.Elem().Kind() != reflect.Struct || !t.Implements(typeOfProtoMessage) {
+ return nil, fmt.Errorf("message field %s requires is not compatible with value of type %v", fieldName, v.Type())
+ }
+ return v.Interface().(proto.Message), nil
+}
+
+// Reset resets this message to an empty message. It removes all values set in
+// the message.
+func (m *Message) Reset() {
+ for k := range m.values {
+ delete(m.values, k)
+ }
+ for k := range m.unknownFields {
+ delete(m.unknownFields, k)
+ }
+}
+
+// String returns this message rendered in compact text format.
+func (m *Message) String() string {
+ b, err := m.MarshalText()
+ if err != nil {
+ panic(fmt.Sprintf("Failed to create string representation of message: %s", err.Error()))
+ }
+ return string(b)
+}
+
+// ProtoMessage is present to satisfy the proto.Message interface.
+func (m *Message) ProtoMessage() {
+}
+
+// ConvertTo converts this dynamic message into the given message. This is
+// shorthand for resetting then merging:
+// target.Reset()
+// m.MergeInto(target)
+func (m *Message) ConvertTo(target proto.Message) error {
+ if err := m.checkType(target); err != nil {
+ return err
+ }
+
+ target.Reset()
+ return m.mergeInto(target, defaultDeterminism)
+}
+
+// ConvertToDeterministic converts this dynamic message into the given message.
+// It is just like ConvertTo, but it attempts to produce deterministic results.
+// That means that if the target is a generated message (not another dynamic
+// message) and the current runtime is unaware of any fields or extensions that
+// are present in m, they will be serialized into the target's unrecognized
+// fields deterministically.
+func (m *Message) ConvertToDeterministic(target proto.Message) error {
+ if err := m.checkType(target); err != nil {
+ return err
+ }
+
+ target.Reset()
+ return m.mergeInto(target, true)
+}
+
+// ConvertFrom converts the given message into this dynamic message. This is
+// shorthand for resetting then merging:
+// m.Reset()
+// m.MergeFrom(target)
+func (m *Message) ConvertFrom(target proto.Message) error {
+ if err := m.checkType(target); err != nil {
+ return err
+ }
+
+ m.Reset()
+ return m.mergeFrom(target)
+}
+
+// MergeInto merges this dynamic message into the given message. All field
+// values in this message will be set on the given message. For map fields,
+// entries are added to the given message (if the given message has existing
+// values for like keys, they are overwritten). For slice fields, elements are
+// added.
+//
+// If the given message has a different set of known fields, it is possible for
+// some known fields in this message to be represented as unknown fields in the
+// given message after merging, and vice versa.
+func (m *Message) MergeInto(target proto.Message) error {
+ if err := m.checkType(target); err != nil {
+ return err
+ }
+ return m.mergeInto(target, defaultDeterminism)
+}
+
+// MergeIntoDeterministic merges this dynamic message into the given message.
+// It is just like MergeInto, but it attempts to produce deterministic results.
+// That means that if the target is a generated message (not another dynamic
+// message) and the current runtime is unaware of any fields or extensions that
+// are present in m, they will be serialized into the target's unrecognized
+// fields deterministically.
+func (m *Message) MergeIntoDeterministic(target proto.Message) error {
+ if err := m.checkType(target); err != nil {
+ return err
+ }
+ return m.mergeInto(target, true)
+}
+
+// MergeFrom merges the given message into this dynamic message. All field
+// values in the given message will be set on this message. For map fields,
+// entries are added to this message (if this message has existing values for
+// like keys, they are overwritten). For slice fields, elements are added.
+//
+// If the given message has a different set of known fields, it is possible for
+// some known fields in that message to be represented as unknown fields in this
+// message after merging, and vice versa.
+func (m *Message) MergeFrom(source proto.Message) error {
+ if err := m.checkType(source); err != nil {
+ return err
+ }
+ return m.mergeFrom(source)
+}
+
+// Merge implements the proto.Merger interface so that dynamic messages are
+// compatible with the proto.Merge function. It delegates to MergeFrom but will
+// panic on error as the proto.Merger interface doesn't allow for returning an
+// error.
+//
+// Unlike nearly all other methods, this method can work if this message's type
+// is not defined (such as instantiating the message without using NewMessage).
+// This is strictly so that dynamic message's are compatible with the
+// proto.Clone function, which instantiates a new message via reflection (thus
+// its message descriptor will not be set) and than calls Merge.
+func (m *Message) Merge(source proto.Message) {
+ if m.md == nil {
+ // To support proto.Clone, initialize the descriptor from the source.
+ if dm, ok := source.(*Message); ok {
+ m.md = dm.md
+ // also make sure the clone uses the same message factory and
+ // extensions and also knows about the same extra fields (if any)
+ m.mf = dm.mf
+ m.er = dm.er
+ m.extraFields = dm.extraFields
+ } else if md, err := desc.LoadMessageDescriptorForMessage(source); err != nil {
+ panic(err.Error())
+ } else {
+ m.md = md
+ }
+ }
+
+ if err := m.MergeFrom(source); err != nil {
+ panic(err.Error())
+ }
+}
+
+func (m *Message) checkType(target proto.Message) error {
+ if dm, ok := target.(*Message); ok {
+ if dm.md.GetFullyQualifiedName() != m.md.GetFullyQualifiedName() {
+ return fmt.Errorf("given message has wrong type: %q; expecting %q", dm.md.GetFullyQualifiedName(), m.md.GetFullyQualifiedName())
+ }
+ return nil
+ }
+
+ msgName := proto.MessageName(target)
+ if msgName != m.md.GetFullyQualifiedName() {
+ return fmt.Errorf("given message has wrong type: %q; expecting %q", msgName, m.md.GetFullyQualifiedName())
+ }
+ return nil
+}
+
+func (m *Message) mergeInto(pm proto.Message, deterministic bool) error {
+ if dm, ok := pm.(*Message); ok {
+ return dm.mergeFrom(m)
+ }
+
+ target := reflect.ValueOf(pm)
+ if target.Kind() == reflect.Ptr {
+ target = target.Elem()
+ }
+
+ // track tags for which the dynamic message has data but the given
+ // message doesn't know about it
+ unknownTags := map[int32]struct{}{}
+ for tag := range m.values {
+ unknownTags[tag] = struct{}{}
+ }
+
+ // check that we can successfully do the merge
+ structProps := proto.GetProperties(reflect.TypeOf(pm).Elem())
+ for _, prop := range structProps.Prop {
+ if prop.Tag == 0 {
+ continue // one-of or special field (such as XXX_unrecognized, etc.)
+ }
+ tag := int32(prop.Tag)
+ v, ok := m.values[tag]
+ if !ok {
+ continue
+ }
+ if unknownTags != nil {
+ delete(unknownTags, tag)
+ }
+ f := target.FieldByName(prop.Name)
+ ft := f.Type()
+ val := reflect.ValueOf(v)
+ if !canConvert(val, ft) {
+ return fmt.Errorf("cannot convert %v to %v", val.Type(), ft)
+ }
+ }
+ // check one-of fields
+ for _, oop := range structProps.OneofTypes {
+ prop := oop.Prop
+ tag := int32(prop.Tag)
+ v, ok := m.values[tag]
+ if !ok {
+ continue
+ }
+ if unknownTags != nil {
+ delete(unknownTags, tag)
+ }
+ stf, ok := oop.Type.Elem().FieldByName(prop.Name)
+ if !ok {
+ return fmt.Errorf("one-of field indicates struct field name %s, but type %v has no such field", prop.Name, oop.Type.Elem())
+ }
+ ft := stf.Type
+ val := reflect.ValueOf(v)
+ if !canConvert(val, ft) {
+ return fmt.Errorf("cannot convert %v to %v", val.Type(), ft)
+ }
+ }
+ // and check extensions, too
+ for tag, ext := range proto.RegisteredExtensions(pm) {
+ v, ok := m.values[tag]
+ if !ok {
+ continue
+ }
+ if unknownTags != nil {
+ delete(unknownTags, tag)
+ }
+ ft := reflect.TypeOf(ext.ExtensionType)
+ val := reflect.ValueOf(v)
+ if !canConvert(val, ft) {
+ return fmt.Errorf("cannot convert %v to %v", val.Type(), ft)
+ }
+ }
+
+ // now actually perform the merge
+ for _, prop := range structProps.Prop {
+ v, ok := m.values[int32(prop.Tag)]
+ if !ok {
+ continue
+ }
+ f := target.FieldByName(prop.Name)
+ if err := mergeVal(reflect.ValueOf(v), f, deterministic); err != nil {
+ return err
+ }
+ }
+ // merge one-ofs
+ for _, oop := range structProps.OneofTypes {
+ prop := oop.Prop
+ tag := int32(prop.Tag)
+ v, ok := m.values[tag]
+ if !ok {
+ continue
+ }
+ oov := reflect.New(oop.Type.Elem())
+ f := oov.Elem().FieldByName(prop.Name)
+ if err := mergeVal(reflect.ValueOf(v), f, deterministic); err != nil {
+ return err
+ }
+ target.Field(oop.Field).Set(oov)
+ }
+ // merge extensions, too
+ for tag, ext := range proto.RegisteredExtensions(pm) {
+ v, ok := m.values[tag]
+ if !ok {
+ continue
+ }
+ e := reflect.New(reflect.TypeOf(ext.ExtensionType)).Elem()
+ if err := mergeVal(reflect.ValueOf(v), e, deterministic); err != nil {
+ return err
+ }
+ if err := proto.SetExtension(pm, ext, e.Interface()); err != nil {
+ // shouldn't happen since we already checked that the extension type was compatible above
+ return err
+ }
+ }
+
+ // if we have fields that the given message doesn't know about, add to its unknown fields
+ if len(unknownTags) > 0 {
+ var b codec.Buffer
+ b.SetDeterministic(deterministic)
+ if deterministic {
+ // if we need to emit things deterministically, sort the
+ // extensions by their tag number
+ sortedUnknownTags := make([]int32, 0, len(unknownTags))
+ for tag := range unknownTags {
+ sortedUnknownTags = append(sortedUnknownTags, tag)
+ }
+ sort.Slice(sortedUnknownTags, func(i, j int) bool {
+ return sortedUnknownTags[i] < sortedUnknownTags[j]
+ })
+ for _, tag := range sortedUnknownTags {
+ fd := m.FindFieldDescriptor(tag)
+ if err := b.EncodeFieldValue(fd, m.values[tag]); err != nil {
+ return err
+ }
+ }
+ } else {
+ for tag := range unknownTags {
+ fd := m.FindFieldDescriptor(tag)
+ if err := b.EncodeFieldValue(fd, m.values[tag]); err != nil {
+ return err
+ }
+ }
+ }
+
+ internal.SetUnrecognized(pm, b.Bytes())
+ }
+
+ // finally, convey unknown fields into the given message by letting it unmarshal them
+ // (this will append to its unknown fields if not known; if somehow the given message recognizes
+ // a field even though the dynamic message did not, it will get correctly unmarshalled)
+ if unknownTags != nil && len(m.unknownFields) > 0 {
+ var b codec.Buffer
+ _ = m.marshalUnknownFields(&b)
+ _ = proto.UnmarshalMerge(b.Bytes(), pm)
+ }
+
+ return nil
+}
+
+func canConvert(src reflect.Value, target reflect.Type) bool {
+ if src.Kind() == reflect.Interface {
+ src = reflect.ValueOf(src.Interface())
+ }
+ srcType := src.Type()
+ // we allow convertible types instead of requiring exact types so that calling
+ // code can, for example, assign an enum constant to an enum field. In that case,
+ // one type is the enum type (a sub-type of int32) and the other may be the int32
+ // type. So we automatically do the conversion in that case.
+ if srcType.ConvertibleTo(target) {
+ return true
+ } else if target.Kind() == reflect.Ptr && srcType.ConvertibleTo(target.Elem()) {
+ return true
+ } else if target.Kind() == reflect.Slice {
+ if srcType.Kind() != reflect.Slice {
+ return false
+ }
+ et := target.Elem()
+ for i := 0; i < src.Len(); i++ {
+ if !canConvert(src.Index(i), et) {
+ return false
+ }
+ }
+ return true
+ } else if target.Kind() == reflect.Map {
+ if srcType.Kind() != reflect.Map {
+ return false
+ }
+ return canConvertMap(src, target)
+ } else if srcType == typeOfDynamicMessage && target.Implements(typeOfProtoMessage) {
+ z := reflect.Zero(target).Interface()
+ msgType := proto.MessageName(z.(proto.Message))
+ return msgType == src.Interface().(*Message).GetMessageDescriptor().GetFullyQualifiedName()
+ } else {
+ return false
+ }
+}
+
+func mergeVal(src, target reflect.Value, deterministic bool) error {
+ if src.Kind() == reflect.Interface && !src.IsNil() {
+ src = src.Elem()
+ }
+ srcType := src.Type()
+ targetType := target.Type()
+ if srcType.ConvertibleTo(targetType) {
+ if targetType.Implements(typeOfProtoMessage) && !target.IsNil() {
+ Merge(target.Interface().(proto.Message), src.Convert(targetType).Interface().(proto.Message))
+ } else {
+ target.Set(src.Convert(targetType))
+ }
+ } else if targetType.Kind() == reflect.Ptr && srcType.ConvertibleTo(targetType.Elem()) {
+ if !src.CanAddr() {
+ target.Set(reflect.New(targetType.Elem()))
+ target.Elem().Set(src.Convert(targetType.Elem()))
+ } else {
+ target.Set(src.Addr().Convert(targetType))
+ }
+ } else if targetType.Kind() == reflect.Slice {
+ l := target.Len()
+ newL := l + src.Len()
+ if target.Cap() < newL {
+ // expand capacity of the slice and copy
+ newSl := reflect.MakeSlice(targetType, newL, newL)
+ for i := 0; i < target.Len(); i++ {
+ newSl.Index(i).Set(target.Index(i))
+ }
+ target.Set(newSl)
+ } else {
+ target.SetLen(newL)
+ }
+ for i := 0; i < src.Len(); i++ {
+ dest := target.Index(l + i)
+ if dest.Kind() == reflect.Ptr {
+ dest.Set(reflect.New(dest.Type().Elem()))
+ }
+ if err := mergeVal(src.Index(i), dest, deterministic); err != nil {
+ return err
+ }
+ }
+ } else if targetType.Kind() == reflect.Map {
+ return mergeMapVal(src, target, targetType, deterministic)
+ } else if srcType == typeOfDynamicMessage && targetType.Implements(typeOfProtoMessage) {
+ dm := src.Interface().(*Message)
+ if target.IsNil() {
+ target.Set(reflect.New(targetType.Elem()))
+ }
+ m := target.Interface().(proto.Message)
+ if err := dm.mergeInto(m, deterministic); err != nil {
+ return err
+ }
+ } else {
+ return fmt.Errorf("cannot convert %v to %v", srcType, targetType)
+ }
+ return nil
+}
+
+func (m *Message) mergeFrom(pm proto.Message) error {
+ if dm, ok := pm.(*Message); ok {
+ // if given message is also a dynamic message, we merge differently
+ for tag, v := range dm.values {
+ fd := m.FindFieldDescriptor(tag)
+ if fd == nil {
+ fd = dm.FindFieldDescriptor(tag)
+ }
+ if err := mergeField(m, fd, v); err != nil {
+ return err
+ }
+ }
+ return nil
+ }
+
+ pmrv := reflect.ValueOf(pm)
+ if pmrv.IsNil() {
+ // nil is an empty message, so nothing to do
+ return nil
+ }
+
+ // check that we can successfully do the merge
+ src := pmrv.Elem()
+ values := map[*desc.FieldDescriptor]interface{}{}
+ props := proto.GetProperties(reflect.TypeOf(pm).Elem())
+ if props == nil {
+ return fmt.Errorf("could not determine message properties to merge for %v", reflect.TypeOf(pm).Elem())
+ }
+
+ // regular fields
+ for _, prop := range props.Prop {
+ if prop.Tag == 0 {
+ continue // one-of or special field (such as XXX_unrecognized, etc.)
+ }
+ fd := m.FindFieldDescriptor(int32(prop.Tag))
+ if fd == nil {
+ // Our descriptor has different fields than this message object. So
+ // try to reflect on the message object's fields.
+ md, err := desc.LoadMessageDescriptorForMessage(pm)
+ if err != nil {
+ return err
+ }
+ fd = md.FindFieldByNumber(int32(prop.Tag))
+ if fd == nil {
+ return fmt.Errorf("message descriptor %q did not contain field for tag %d (%q)", md.GetFullyQualifiedName(), prop.Tag, prop.Name)
+ }
+ }
+ rv := src.FieldByName(prop.Name)
+ if (rv.Kind() == reflect.Ptr || rv.Kind() == reflect.Slice) && rv.IsNil() {
+ continue
+ }
+ if v, err := validFieldValueForRv(fd, rv); err != nil {
+ return err
+ } else {
+ values[fd] = v
+ }
+ }
+
+ // one-of fields
+ for _, oop := range props.OneofTypes {
+ oov := src.Field(oop.Field).Elem()
+ if !oov.IsValid() || oov.Type() != oop.Type {
+ // this field is unset (in other words, one-of message field is not currently set to this option)
+ continue
+ }
+ prop := oop.Prop
+ rv := oov.Elem().FieldByName(prop.Name)
+ fd := m.FindFieldDescriptor(int32(prop.Tag))
+ if fd == nil {
+ // Our descriptor has different fields than this message object. So
+ // try to reflect on the message object's fields.
+ md, err := desc.LoadMessageDescriptorForMessage(pm)
+ if err != nil {
+ return err
+ }
+ fd = md.FindFieldByNumber(int32(prop.Tag))
+ if fd == nil {
+ return fmt.Errorf("message descriptor %q did not contain field for tag %d (%q in one-of %q)", md.GetFullyQualifiedName(), prop.Tag, prop.Name, src.Type().Field(oop.Field).Name)
+ }
+ }
+ if v, err := validFieldValueForRv(fd, rv); err != nil {
+ return err
+ } else {
+ values[fd] = v
+ }
+ }
+
+ // extension fields
+ rexts, _ := proto.ExtensionDescs(pm)
+ for _, ed := range rexts {
+ v, _ := proto.GetExtension(pm, ed)
+ if v == nil {
+ continue
+ }
+ if ed.ExtensionType == nil {
+ // unrecognized extension: we'll handle that below when we
+ // handle other unrecognized fields
+ continue
+ }
+ fd := m.er.FindExtension(m.md.GetFullyQualifiedName(), ed.Field)
+ if fd == nil {
+ var err error
+ if fd, err = desc.LoadFieldDescriptorForExtension(ed); err != nil {
+ return err
+ }
+ }
+ if v, err := validFieldValue(fd, v); err != nil {
+ return err
+ } else {
+ values[fd] = v
+ }
+ }
+
+ // now actually perform the merge
+ for fd, v := range values {
+ if err := mergeField(m, fd, v); err != nil {
+ return err
+ }
+ }
+
+ data := internal.GetUnrecognized(pm)
+ if len(data) > 0 {
+ // ignore any error returned: pulling in unknown fields is best-effort
+ _ = m.UnmarshalMerge(data)
+ }
+
+ return nil
+}
+
+// Validate checks that all required fields are present. It returns an error if any are absent.
+func (m *Message) Validate() error {
+ missingFields := m.findMissingFields()
+ if len(missingFields) == 0 {
+ return nil
+ }
+ return fmt.Errorf("some required fields missing: %v", strings.Join(missingFields, ", "))
+}
+
+func (m *Message) findMissingFields() []string {
+ if m.md.IsProto3() {
+ // proto3 does not allow required fields
+ return nil
+ }
+ var missingFields []string
+ for _, fd := range m.md.GetFields() {
+ if fd.IsRequired() {
+ if _, ok := m.values[fd.GetNumber()]; !ok {
+ missingFields = append(missingFields, fd.GetName())
+ }
+ }
+ }
+ return missingFields
+}
+
+// ValidateRecursive checks that all required fields are present and also
+// recursively validates all fields who are also messages. It returns an error
+// if any required fields, in this message or nested within, are absent.
+func (m *Message) ValidateRecursive() error {
+ return m.validateRecursive("")
+}
+
+func (m *Message) validateRecursive(prefix string) error {
+ if missingFields := m.findMissingFields(); len(missingFields) > 0 {
+ for i := range missingFields {
+ missingFields[i] = fmt.Sprintf("%s%s", prefix, missingFields[i])
+ }
+ return fmt.Errorf("some required fields missing: %v", strings.Join(missingFields, ", "))
+ }
+
+ for tag, fld := range m.values {
+ fd := m.FindFieldDescriptor(tag)
+ var chprefix string
+ var md *desc.MessageDescriptor
+ checkMsg := func(pm proto.Message) error {
+ var dm *Message
+ if d, ok := pm.(*Message); ok {
+ dm = d
+ } else if pm != nil {
+ dm = m.mf.NewDynamicMessage(md)
+ if err := dm.ConvertFrom(pm); err != nil {
+ return nil
+ }
+ }
+ if dm == nil {
+ return nil
+ }
+ if err := dm.validateRecursive(chprefix); err != nil {
+ return err
+ }
+ return nil
+ }
+ isMap := fd.IsMap()
+ if isMap && fd.GetMapValueType().GetMessageType() != nil {
+ md = fd.GetMapValueType().GetMessageType()
+ mp := fld.(map[interface{}]interface{})
+ for k, v := range mp {
+ chprefix = fmt.Sprintf("%s%s[%v].", prefix, getName(fd), k)
+ if err := checkMsg(v.(proto.Message)); err != nil {
+ return err
+ }
+ }
+ } else if !isMap && fd.GetMessageType() != nil {
+ md = fd.GetMessageType()
+ if fd.IsRepeated() {
+ sl := fld.([]interface{})
+ for i, v := range sl {
+ chprefix = fmt.Sprintf("%s%s[%d].", prefix, getName(fd), i)
+ if err := checkMsg(v.(proto.Message)); err != nil {
+ return err
+ }
+ }
+ } else {
+ chprefix = fmt.Sprintf("%s%s.", prefix, getName(fd))
+ if err := checkMsg(fld.(proto.Message)); err != nil {
+ return err
+ }
+ }
+ }
+ }
+
+ return nil
+}
+
+func getName(fd *desc.FieldDescriptor) string {
+ if fd.IsExtension() {
+ return fmt.Sprintf("(%s)", fd.GetFullyQualifiedName())
+ } else {
+ return fd.GetName()
+ }
+}
+
+// knownFieldTags return tags of present and recognized fields, in sorted order.
+func (m *Message) knownFieldTags() []int {
+ if len(m.values) == 0 {
+ return []int(nil)
+ }
+
+ keys := make([]int, len(m.values))
+ i := 0
+ for k := range m.values {
+ keys[i] = int(k)
+ i++
+ }
+
+ sort.Ints(keys)
+ return keys
+}
+
+// allKnownFieldTags return tags of present and recognized fields, including
+// those that are unset, in sorted order. This only includes extensions that are
+// present. Known but not-present extensions are not included in the returned
+// set of tags.
+func (m *Message) allKnownFieldTags() []int {
+ fds := m.md.GetFields()
+ keys := make([]int, 0, len(fds)+len(m.extraFields))
+
+ for k := range m.values {
+ keys = append(keys, int(k))
+ }
+
+ // also include known fields that are not present
+ for _, fd := range fds {
+ if _, ok := m.values[fd.GetNumber()]; !ok {
+ keys = append(keys, int(fd.GetNumber()))
+ }
+ }
+ for _, fd := range m.extraFields {
+ if !fd.IsExtension() { // skip extensions that are not present
+ if _, ok := m.values[fd.GetNumber()]; !ok {
+ keys = append(keys, int(fd.GetNumber()))
+ }
+ }
+ }
+
+ sort.Ints(keys)
+ return keys
+}
+
+// unknownFieldTags return tags of present but unrecognized fields, in sorted order.
+func (m *Message) unknownFieldTags() []int {
+ if len(m.unknownFields) == 0 {
+ return []int(nil)
+ }
+ keys := make([]int, len(m.unknownFields))
+ i := 0
+ for k := range m.unknownFields {
+ keys[i] = int(k)
+ i++
+ }
+ sort.Ints(keys)
+ return keys
+}