[VOL-4291] OfAgent changes for gRPC migration
Change-Id: I8da1db6df49d478ef24ec8f9bd719e9692f48a7f
diff --git a/vendor/google.golang.org/protobuf/internal/filedesc/build.go b/vendor/google.golang.org/protobuf/internal/filedesc/build.go
new file mode 100644
index 0000000..b293b69
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/internal/filedesc/build.go
@@ -0,0 +1,158 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package filedesc provides functionality for constructing descriptors.
+//
+// The types in this package implement interfaces in the protoreflect package
+// related to protobuf descripriptors.
+package filedesc
+
+import (
+ "google.golang.org/protobuf/encoding/protowire"
+ "google.golang.org/protobuf/internal/genid"
+ "google.golang.org/protobuf/reflect/protoreflect"
+ pref "google.golang.org/protobuf/reflect/protoreflect"
+ preg "google.golang.org/protobuf/reflect/protoregistry"
+)
+
+// Builder construct a protoreflect.FileDescriptor from the raw descriptor.
+type Builder struct {
+ // GoPackagePath is the Go package path that is invoking this builder.
+ GoPackagePath string
+
+ // RawDescriptor is the wire-encoded bytes of FileDescriptorProto
+ // and must be populated.
+ RawDescriptor []byte
+
+ // NumEnums is the total number of enums declared in the file.
+ NumEnums int32
+ // NumMessages is the total number of messages declared in the file.
+ // It includes the implicit message declarations for map entries.
+ NumMessages int32
+ // NumExtensions is the total number of extensions declared in the file.
+ NumExtensions int32
+ // NumServices is the total number of services declared in the file.
+ NumServices int32
+
+ // TypeResolver resolves extension field types for descriptor options.
+ // If nil, it uses protoregistry.GlobalTypes.
+ TypeResolver interface {
+ preg.ExtensionTypeResolver
+ }
+
+ // FileRegistry is use to lookup file, enum, and message dependencies.
+ // Once constructed, the file descriptor is registered here.
+ // If nil, it uses protoregistry.GlobalFiles.
+ FileRegistry interface {
+ FindFileByPath(string) (protoreflect.FileDescriptor, error)
+ FindDescriptorByName(pref.FullName) (pref.Descriptor, error)
+ RegisterFile(pref.FileDescriptor) error
+ }
+}
+
+// resolverByIndex is an interface Builder.FileRegistry may implement.
+// If so, it permits looking up an enum or message dependency based on the
+// sub-list and element index into filetype.Builder.DependencyIndexes.
+type resolverByIndex interface {
+ FindEnumByIndex(int32, int32, []Enum, []Message) pref.EnumDescriptor
+ FindMessageByIndex(int32, int32, []Enum, []Message) pref.MessageDescriptor
+}
+
+// Indexes of each sub-list in filetype.Builder.DependencyIndexes.
+const (
+ listFieldDeps int32 = iota
+ listExtTargets
+ listExtDeps
+ listMethInDeps
+ listMethOutDeps
+)
+
+// Out is the output of the Builder.
+type Out struct {
+ File pref.FileDescriptor
+
+ // Enums is all enum descriptors in "flattened ordering".
+ Enums []Enum
+ // Messages is all message descriptors in "flattened ordering".
+ // It includes the implicit message declarations for map entries.
+ Messages []Message
+ // Extensions is all extension descriptors in "flattened ordering".
+ Extensions []Extension
+ // Service is all service descriptors in "flattened ordering".
+ Services []Service
+}
+
+// Build constructs a FileDescriptor given the parameters set in Builder.
+// It assumes that the inputs are well-formed and panics if any inconsistencies
+// are encountered.
+//
+// If NumEnums+NumMessages+NumExtensions+NumServices is zero,
+// then Build automatically derives them from the raw descriptor.
+func (db Builder) Build() (out Out) {
+ // Populate the counts if uninitialized.
+ if db.NumEnums+db.NumMessages+db.NumExtensions+db.NumServices == 0 {
+ db.unmarshalCounts(db.RawDescriptor, true)
+ }
+
+ // Initialize resolvers and registries if unpopulated.
+ if db.TypeResolver == nil {
+ db.TypeResolver = preg.GlobalTypes
+ }
+ if db.FileRegistry == nil {
+ db.FileRegistry = preg.GlobalFiles
+ }
+
+ fd := newRawFile(db)
+ out.File = fd
+ out.Enums = fd.allEnums
+ out.Messages = fd.allMessages
+ out.Extensions = fd.allExtensions
+ out.Services = fd.allServices
+
+ if err := db.FileRegistry.RegisterFile(fd); err != nil {
+ panic(err)
+ }
+ return out
+}
+
+// unmarshalCounts counts the number of enum, message, extension, and service
+// declarations in the raw message, which is either a FileDescriptorProto
+// or a MessageDescriptorProto depending on whether isFile is set.
+func (db *Builder) unmarshalCounts(b []byte, isFile bool) {
+ for len(b) > 0 {
+ num, typ, n := protowire.ConsumeTag(b)
+ b = b[n:]
+ switch typ {
+ case protowire.BytesType:
+ v, m := protowire.ConsumeBytes(b)
+ b = b[m:]
+ if isFile {
+ switch num {
+ case genid.FileDescriptorProto_EnumType_field_number:
+ db.NumEnums++
+ case genid.FileDescriptorProto_MessageType_field_number:
+ db.unmarshalCounts(v, false)
+ db.NumMessages++
+ case genid.FileDescriptorProto_Extension_field_number:
+ db.NumExtensions++
+ case genid.FileDescriptorProto_Service_field_number:
+ db.NumServices++
+ }
+ } else {
+ switch num {
+ case genid.DescriptorProto_EnumType_field_number:
+ db.NumEnums++
+ case genid.DescriptorProto_NestedType_field_number:
+ db.unmarshalCounts(v, false)
+ db.NumMessages++
+ case genid.DescriptorProto_Extension_field_number:
+ db.NumExtensions++
+ }
+ }
+ default:
+ m := protowire.ConsumeFieldValue(num, typ, b)
+ b = b[m:]
+ }
+ }
+}