mirror of
https://github.com/protocolbuffers/protobuf-go.git
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82760ceffa
We define MessageState, which is essentially an atomically set *MessageInfo. By nesting this as the first field in every generated message, we can implement the reflective methods on a *MessageState when obtained by unsafe casting a concrete message pointer as a *MessageState. The MessageInfo held by MessageState provides additional Go type information to interpret the memory that comes after the contents of the MessageState. Since we are nesting a MessageState in every message, the memory use of every message instance grows by 8B. On average, the body of ProtoReflect grows from 133B to 202B (+50%). However, this is offset by XXX_Methods, which is 108B and will be removed in a future CL. Taking into account the eventual removal of XXX_Methods, this is a net reduction of 25%. name old time/op new time/op delta Name/Value-4 70.3ns ± 2% 17.5ns ± 6% -75.08% (p=0.000 n=10+10) Name/Nil-4 70.6ns ± 3% 33.4ns ± 2% -52.66% (p=0.000 n=10+10) name old alloc/op new alloc/op delta Name/Value-4 16.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10) Name/Nil-4 16.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10) name old allocs/op new allocs/op delta Name/Value-4 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10) Name/Nil-4 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10) Change-Id: I92bd58dc681c57c92612fd5ba7fc066aea34e95a Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/185460 Reviewed-by: Damien Neil <dneil@google.com>
129 lines
3.9 KiB
Go
129 lines
3.9 KiB
Go
// Code generated by protoc-gen-go. DO NOT EDIT.
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// source: imports/fmt/m.proto
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package fmt
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import (
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protoreflect "google.golang.org/protobuf/reflect/protoreflect"
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protoiface "google.golang.org/protobuf/runtime/protoiface"
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protoimpl "google.golang.org/protobuf/runtime/protoimpl"
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sync "sync"
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)
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const (
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// Verify that runtime/protoimpl is sufficiently up-to-date.
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_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 0)
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// Verify that this generated code is sufficiently up-to-date.
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_ = protoimpl.EnforceVersion(0 - protoimpl.MinVersion)
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)
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type M struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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}
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func (x *M) Reset() {
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*x = M{}
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}
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func (x *M) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*M) ProtoMessage() {}
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func (x *M) ProtoReflect() protoreflect.Message {
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mi := &file_imports_fmt_m_proto_msgTypes[0]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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func (x *M) XXX_Methods() *protoiface.Methods {
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return file_imports_fmt_m_proto_msgTypes[0].Methods()
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}
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// Deprecated: Use M.ProtoReflect.Type instead.
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func (*M) Descriptor() ([]byte, []int) {
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return file_imports_fmt_m_proto_rawDescGZIP(), []int{0}
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}
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var File_imports_fmt_m_proto protoreflect.FileDescriptor
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var file_imports_fmt_m_proto_rawDesc = []byte{
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0x0a, 0x13, 0x69, 0x6d, 0x70, 0x6f, 0x72, 0x74, 0x73, 0x2f, 0x66, 0x6d, 0x74, 0x2f, 0x6d, 0x2e,
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0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x03, 0x66, 0x6d, 0x74, 0x22, 0x03, 0x0a, 0x01, 0x4d, 0x42,
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0x43, 0x5a, 0x41, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67,
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0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x63, 0x6d,
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0x64, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65, 0x6e, 0x2d, 0x67, 0x6f, 0x2f,
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0x74, 0x65, 0x73, 0x74, 0x64, 0x61, 0x74, 0x61, 0x2f, 0x69, 0x6d, 0x70, 0x6f, 0x72, 0x74, 0x73,
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0x2f, 0x66, 0x6d, 0x74, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
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}
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var (
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file_imports_fmt_m_proto_rawDescOnce sync.Once
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file_imports_fmt_m_proto_rawDescData = file_imports_fmt_m_proto_rawDesc
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)
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func file_imports_fmt_m_proto_rawDescGZIP() []byte {
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file_imports_fmt_m_proto_rawDescOnce.Do(func() {
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file_imports_fmt_m_proto_rawDescData = protoimpl.X.CompressGZIP(file_imports_fmt_m_proto_rawDescData)
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})
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return file_imports_fmt_m_proto_rawDescData
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}
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var file_imports_fmt_m_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
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var file_imports_fmt_m_proto_goTypes = []interface{}{
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(*M)(nil), // 0: fmt.M
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}
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var file_imports_fmt_m_proto_depIdxs = []int32{
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0, // starting offset of method output_type sub-list
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0, // starting offset of method input_type sub-list
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0, // starting offset of extension type_name sub-list
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0, // starting offset of extension extendee sub-list
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0, // starting offset of field type_name sub-list
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}
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func init() { file_imports_fmt_m_proto_init() }
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func file_imports_fmt_m_proto_init() {
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if File_imports_fmt_m_proto != nil {
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return
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}
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if !protoimpl.UnsafeEnabled {
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file_imports_fmt_m_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
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switch v := v.(*M); i {
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case 0:
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return &v.state
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case 1:
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return &v.sizeCache
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case 2:
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return &v.unknownFields
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default:
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return nil
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}
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}
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}
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out := protoimpl.TypeBuilder{
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File: protoimpl.DescBuilder{
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RawDescriptor: file_imports_fmt_m_proto_rawDesc,
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NumEnums: 0,
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NumMessages: 1,
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NumExtensions: 0,
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NumServices: 0,
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},
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GoTypes: file_imports_fmt_m_proto_goTypes,
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DependencyIndexes: file_imports_fmt_m_proto_depIdxs,
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MessageInfos: file_imports_fmt_m_proto_msgTypes,
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}.Build()
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File_imports_fmt_m_proto = out.File
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file_imports_fmt_m_proto_rawDesc = nil
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file_imports_fmt_m_proto_goTypes = nil
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file_imports_fmt_m_proto_depIdxs = nil
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}
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