diff options
Diffstat (limited to 'vendor/google.golang.org/protobuf/reflect/protodesc')
5 files changed, 1436 insertions, 0 deletions
diff --git a/vendor/google.golang.org/protobuf/reflect/protodesc/desc.go b/vendor/google.golang.org/protobuf/reflect/protodesc/desc.go new file mode 100644 index 00000000..e4dfb120 --- /dev/null +++ b/vendor/google.golang.org/protobuf/reflect/protodesc/desc.go @@ -0,0 +1,276 @@ +// Copyright 2018 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 protodesc provides functionality for converting +// FileDescriptorProto messages to/from protoreflect.FileDescriptor values. +// +// The google.protobuf.FileDescriptorProto is a protobuf message that describes +// the type information for a .proto file in a form that is easily serializable. +// The protoreflect.FileDescriptor is a more structured representation of +// the FileDescriptorProto message where references and remote dependencies +// can be directly followed. +package protodesc + +import ( + "google.golang.org/protobuf/internal/errors" + "google.golang.org/protobuf/internal/filedesc" + "google.golang.org/protobuf/internal/pragma" + "google.golang.org/protobuf/internal/strs" + "google.golang.org/protobuf/proto" + "google.golang.org/protobuf/reflect/protoreflect" + "google.golang.org/protobuf/reflect/protoregistry" + + "google.golang.org/protobuf/types/descriptorpb" +) + +// Resolver is the resolver used by NewFile to resolve dependencies. +// The enums and messages provided must belong to some parent file, +// which is also registered. +// +// It is implemented by protoregistry.Files. +type Resolver interface { + FindFileByPath(string) (protoreflect.FileDescriptor, error) + FindDescriptorByName(protoreflect.FullName) (protoreflect.Descriptor, error) +} + +// FileOptions configures the construction of file descriptors. +type FileOptions struct { + pragma.NoUnkeyedLiterals + + // AllowUnresolvable configures New to permissively allow unresolvable + // file, enum, or message dependencies. Unresolved dependencies are replaced + // by placeholder equivalents. + // + // The following dependencies may be left unresolved: + // • Resolving an imported file. + // • Resolving the type for a message field or extension field. + // If the kind of the field is unknown, then a placeholder is used for both + // the Enum and Message accessors on the protoreflect.FieldDescriptor. + // • Resolving an enum value set as the default for an optional enum field. + // If unresolvable, the protoreflect.FieldDescriptor.Default is set to the + // first value in the associated enum (or zero if the also enum dependency + // is also unresolvable). The protoreflect.FieldDescriptor.DefaultEnumValue + // is populated with a placeholder. + // • Resolving the extended message type for an extension field. + // • Resolving the input or output message type for a service method. + // + // If the unresolved dependency uses a relative name, + // then the placeholder will contain an invalid FullName with a "*." prefix, + // indicating that the starting prefix of the full name is unknown. + AllowUnresolvable bool +} + +// NewFile creates a new protoreflect.FileDescriptor from the provided +// file descriptor message. See FileOptions.New for more information. +func NewFile(fd *descriptorpb.FileDescriptorProto, r Resolver) (protoreflect.FileDescriptor, error) { + return FileOptions{}.New(fd, r) +} + +// NewFiles creates a new protoregistry.Files from the provided +// FileDescriptorSet message. See FileOptions.NewFiles for more information. +func NewFiles(fd *descriptorpb.FileDescriptorSet) (*protoregistry.Files, error) { + return FileOptions{}.NewFiles(fd) +} + +// New creates a new protoreflect.FileDescriptor from the provided +// file descriptor message. The file must represent a valid proto file according +// to protobuf semantics. The returned descriptor is a deep copy of the input. +// +// Any imported files, enum types, or message types referenced in the file are +// resolved using the provided registry. When looking up an import file path, +// the path must be unique. The newly created file descriptor is not registered +// back into the provided file registry. +func (o FileOptions) New(fd *descriptorpb.FileDescriptorProto, r Resolver) (protoreflect.FileDescriptor, error) { + if r == nil { + r = (*protoregistry.Files)(nil) // empty resolver + } + + // Handle the file descriptor content. + f := &filedesc.File{L2: &filedesc.FileL2{}} + switch fd.GetSyntax() { + case "proto2", "": + f.L1.Syntax = protoreflect.Proto2 + case "proto3": + f.L1.Syntax = protoreflect.Proto3 + default: + return nil, errors.New("invalid syntax: %q", fd.GetSyntax()) + } + f.L1.Path = fd.GetName() + if f.L1.Path == "" { + return nil, errors.New("file path must be populated") + } + f.L1.Package = protoreflect.FullName(fd.GetPackage()) + if !f.L1.Package.IsValid() && f.L1.Package != "" { + return nil, errors.New("invalid package: %q", f.L1.Package) + } + if opts := fd.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.FileOptions) + f.L2.Options = func() protoreflect.ProtoMessage { return opts } + } + + f.L2.Imports = make(filedesc.FileImports, len(fd.GetDependency())) + for _, i := range fd.GetPublicDependency() { + if !(0 <= i && int(i) < len(f.L2.Imports)) || f.L2.Imports[i].IsPublic { + return nil, errors.New("invalid or duplicate public import index: %d", i) + } + f.L2.Imports[i].IsPublic = true + } + for _, i := range fd.GetWeakDependency() { + if !(0 <= i && int(i) < len(f.L2.Imports)) || f.L2.Imports[i].IsWeak { + return nil, errors.New("invalid or duplicate weak import index: %d", i) + } + f.L2.Imports[i].IsWeak = true + } + imps := importSet{f.Path(): true} + for i, path := range fd.GetDependency() { + imp := &f.L2.Imports[i] + f, err := r.FindFileByPath(path) + if err == protoregistry.NotFound && (o.AllowUnresolvable || imp.IsWeak) { + f = filedesc.PlaceholderFile(path) + } else if err != nil { + return nil, errors.New("could not resolve import %q: %v", path, err) + } + imp.FileDescriptor = f + + if imps[imp.Path()] { + return nil, errors.New("already imported %q", path) + } + imps[imp.Path()] = true + } + for i := range fd.GetDependency() { + imp := &f.L2.Imports[i] + imps.importPublic(imp.Imports()) + } + + // Handle source locations. + f.L2.Locations.File = f + for _, loc := range fd.GetSourceCodeInfo().GetLocation() { + var l protoreflect.SourceLocation + // TODO: Validate that the path points to an actual declaration? + l.Path = protoreflect.SourcePath(loc.GetPath()) + s := loc.GetSpan() + switch len(s) { + case 3: + l.StartLine, l.StartColumn, l.EndLine, l.EndColumn = int(s[0]), int(s[1]), int(s[0]), int(s[2]) + case 4: + l.StartLine, l.StartColumn, l.EndLine, l.EndColumn = int(s[0]), int(s[1]), int(s[2]), int(s[3]) + default: + return nil, errors.New("invalid span: %v", s) + } + // TODO: Validate that the span information is sensible? + // See https://github.com/protocolbuffers/protobuf/issues/6378. + if false && (l.EndLine < l.StartLine || l.StartLine < 0 || l.StartColumn < 0 || l.EndColumn < 0 || + (l.StartLine == l.EndLine && l.EndColumn <= l.StartColumn)) { + return nil, errors.New("invalid span: %v", s) + } + l.LeadingDetachedComments = loc.GetLeadingDetachedComments() + l.LeadingComments = loc.GetLeadingComments() + l.TrailingComments = loc.GetTrailingComments() + f.L2.Locations.List = append(f.L2.Locations.List, l) + } + + // Step 1: Allocate and derive the names for all declarations. + // This copies all fields from the descriptor proto except: + // google.protobuf.FieldDescriptorProto.type_name + // google.protobuf.FieldDescriptorProto.default_value + // google.protobuf.FieldDescriptorProto.oneof_index + // google.protobuf.FieldDescriptorProto.extendee + // google.protobuf.MethodDescriptorProto.input + // google.protobuf.MethodDescriptorProto.output + var err error + sb := new(strs.Builder) + r1 := make(descsByName) + if f.L1.Enums.List, err = r1.initEnumDeclarations(fd.GetEnumType(), f, sb); err != nil { + return nil, err + } + if f.L1.Messages.List, err = r1.initMessagesDeclarations(fd.GetMessageType(), f, sb); err != nil { + return nil, err + } + if f.L1.Extensions.List, err = r1.initExtensionDeclarations(fd.GetExtension(), f, sb); err != nil { + return nil, err + } + if f.L1.Services.List, err = r1.initServiceDeclarations(fd.GetService(), f, sb); err != nil { + return nil, err + } + + // Step 2: Resolve every dependency reference not handled by step 1. + r2 := &resolver{local: r1, remote: r, imports: imps, allowUnresolvable: o.AllowUnresolvable} + if err := r2.resolveMessageDependencies(f.L1.Messages.List, fd.GetMessageType()); err != nil { + return nil, err + } + if err := r2.resolveExtensionDependencies(f.L1.Extensions.List, fd.GetExtension()); err != nil { + return nil, err + } + if err := r2.resolveServiceDependencies(f.L1.Services.List, fd.GetService()); err != nil { + return nil, err + } + + // Step 3: Validate every enum, message, and extension declaration. + if err := validateEnumDeclarations(f.L1.Enums.List, fd.GetEnumType()); err != nil { + return nil, err + } + if err := validateMessageDeclarations(f.L1.Messages.List, fd.GetMessageType()); err != nil { + return nil, err + } + if err := validateExtensionDeclarations(f.L1.Extensions.List, fd.GetExtension()); err != nil { + return nil, err + } + + return f, nil +} + +type importSet map[string]bool + +func (is importSet) importPublic(imps protoreflect.FileImports) { + for i := 0; i < imps.Len(); i++ { + if imp := imps.Get(i); imp.IsPublic { + is[imp.Path()] = true + is.importPublic(imp.Imports()) + } + } +} + +// NewFiles creates a new protoregistry.Files from the provided +// FileDescriptorSet message. The descriptor set must include only +// valid files according to protobuf semantics. The returned descriptors +// are a deep copy of the input. +func (o FileOptions) NewFiles(fds *descriptorpb.FileDescriptorSet) (*protoregistry.Files, error) { + files := make(map[string]*descriptorpb.FileDescriptorProto) + for _, fd := range fds.File { + if _, ok := files[fd.GetName()]; ok { + return nil, errors.New("file appears multiple times: %q", fd.GetName()) + } + files[fd.GetName()] = fd + } + r := &protoregistry.Files{} + for _, fd := range files { + if err := o.addFileDeps(r, fd, files); err != nil { + return nil, err + } + } + return r, nil +} +func (o FileOptions) addFileDeps(r *protoregistry.Files, fd *descriptorpb.FileDescriptorProto, files map[string]*descriptorpb.FileDescriptorProto) error { + // Set the entry to nil while descending into a file's dependencies to detect cycles. + files[fd.GetName()] = nil + for _, dep := range fd.Dependency { + depfd, ok := files[dep] + if depfd == nil { + if ok { + return errors.New("import cycle in file: %q", dep) + } + continue + } + if err := o.addFileDeps(r, depfd, files); err != nil { + return err + } + } + // Delete the entry once dependencies are processed. + delete(files, fd.GetName()) + f, err := o.New(fd, r) + if err != nil { + return err + } + return r.RegisterFile(f) +} diff --git a/vendor/google.golang.org/protobuf/reflect/protodesc/desc_init.go b/vendor/google.golang.org/protobuf/reflect/protodesc/desc_init.go new file mode 100644 index 00000000..37efda1a --- /dev/null +++ b/vendor/google.golang.org/protobuf/reflect/protodesc/desc_init.go @@ -0,0 +1,248 @@ +// 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 protodesc + +import ( + "google.golang.org/protobuf/internal/errors" + "google.golang.org/protobuf/internal/filedesc" + "google.golang.org/protobuf/internal/strs" + "google.golang.org/protobuf/proto" + "google.golang.org/protobuf/reflect/protoreflect" + + "google.golang.org/protobuf/types/descriptorpb" +) + +type descsByName map[protoreflect.FullName]protoreflect.Descriptor + +func (r descsByName) initEnumDeclarations(eds []*descriptorpb.EnumDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (es []filedesc.Enum, err error) { + es = make([]filedesc.Enum, len(eds)) // allocate up-front to ensure stable pointers + for i, ed := range eds { + e := &es[i] + e.L2 = new(filedesc.EnumL2) + if e.L0, err = r.makeBase(e, parent, ed.GetName(), i, sb); err != nil { + return nil, err + } + if opts := ed.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.EnumOptions) + e.L2.Options = func() protoreflect.ProtoMessage { return opts } + } + for _, s := range ed.GetReservedName() { + e.L2.ReservedNames.List = append(e.L2.ReservedNames.List, protoreflect.Name(s)) + } + for _, rr := range ed.GetReservedRange() { + e.L2.ReservedRanges.List = append(e.L2.ReservedRanges.List, [2]protoreflect.EnumNumber{ + protoreflect.EnumNumber(rr.GetStart()), + protoreflect.EnumNumber(rr.GetEnd()), + }) + } + if e.L2.Values.List, err = r.initEnumValuesFromDescriptorProto(ed.GetValue(), e, sb); err != nil { + return nil, err + } + } + return es, nil +} + +func (r descsByName) initEnumValuesFromDescriptorProto(vds []*descriptorpb.EnumValueDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (vs []filedesc.EnumValue, err error) { + vs = make([]filedesc.EnumValue, len(vds)) // allocate up-front to ensure stable pointers + for i, vd := range vds { + v := &vs[i] + if v.L0, err = r.makeBase(v, parent, vd.GetName(), i, sb); err != nil { + return nil, err + } + if opts := vd.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.EnumValueOptions) + v.L1.Options = func() protoreflect.ProtoMessage { return opts } + } + v.L1.Number = protoreflect.EnumNumber(vd.GetNumber()) + } + return vs, nil +} + +func (r descsByName) initMessagesDeclarations(mds []*descriptorpb.DescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (ms []filedesc.Message, err error) { + ms = make([]filedesc.Message, len(mds)) // allocate up-front to ensure stable pointers + for i, md := range mds { + m := &ms[i] + m.L2 = new(filedesc.MessageL2) + if m.L0, err = r.makeBase(m, parent, md.GetName(), i, sb); err != nil { + return nil, err + } + if opts := md.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.MessageOptions) + m.L2.Options = func() protoreflect.ProtoMessage { return opts } + m.L1.IsMapEntry = opts.GetMapEntry() + m.L1.IsMessageSet = opts.GetMessageSetWireFormat() + } + for _, s := range md.GetReservedName() { + m.L2.ReservedNames.List = append(m.L2.ReservedNames.List, protoreflect.Name(s)) + } + for _, rr := range md.GetReservedRange() { + m.L2.ReservedRanges.List = append(m.L2.ReservedRanges.List, [2]protoreflect.FieldNumber{ + protoreflect.FieldNumber(rr.GetStart()), + protoreflect.FieldNumber(rr.GetEnd()), + }) + } + for _, xr := range md.GetExtensionRange() { + m.L2.ExtensionRanges.List = append(m.L2.ExtensionRanges.List, [2]protoreflect.FieldNumber{ + protoreflect.FieldNumber(xr.GetStart()), + protoreflect.FieldNumber(xr.GetEnd()), + }) + var optsFunc func() protoreflect.ProtoMessage + if opts := xr.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.ExtensionRangeOptions) + optsFunc = func() protoreflect.ProtoMessage { return opts } + } + m.L2.ExtensionRangeOptions = append(m.L2.ExtensionRangeOptions, optsFunc) + } + if m.L2.Fields.List, err = r.initFieldsFromDescriptorProto(md.GetField(), m, sb); err != nil { + return nil, err + } + if m.L2.Oneofs.List, err = r.initOneofsFromDescriptorProto(md.GetOneofDecl(), m, sb); err != nil { + return nil, err + } + if m.L1.Enums.List, err = r.initEnumDeclarations(md.GetEnumType(), m, sb); err != nil { + return nil, err + } + if m.L1.Messages.List, err = r.initMessagesDeclarations(md.GetNestedType(), m, sb); err != nil { + return nil, err + } + if m.L1.Extensions.List, err = r.initExtensionDeclarations(md.GetExtension(), m, sb); err != nil { + return nil, err + } + } + return ms, nil +} + +func (r descsByName) initFieldsFromDescriptorProto(fds []*descriptorpb.FieldDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (fs []filedesc.Field, err error) { + fs = make([]filedesc.Field, len(fds)) // allocate up-front to ensure stable pointers + for i, fd := range fds { + f := &fs[i] + if f.L0, err = r.makeBase(f, parent, fd.GetName(), i, sb); err != nil { + return nil, err + } + f.L1.IsProto3Optional = fd.GetProto3Optional() + if opts := fd.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.FieldOptions) + f.L1.Options = func() protoreflect.ProtoMessage { return opts } + f.L1.IsWeak = opts.GetWeak() + f.L1.HasPacked = opts.Packed != nil + f.L1.IsPacked = opts.GetPacked() + } + f.L1.Number = protoreflect.FieldNumber(fd.GetNumber()) + f.L1.Cardinality = protoreflect.Cardinality(fd.GetLabel()) + if fd.Type != nil { + f.L1.Kind = protoreflect.Kind(fd.GetType()) + } + if fd.JsonName != nil { + f.L1.StringName.InitJSON(fd.GetJsonName()) + } + } + return fs, nil +} + +func (r descsByName) initOneofsFromDescriptorProto(ods []*descriptorpb.OneofDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (os []filedesc.Oneof, err error) { + os = make([]filedesc.Oneof, len(ods)) // allocate up-front to ensure stable pointers + for i, od := range ods { + o := &os[i] + if o.L0, err = r.makeBase(o, parent, od.GetName(), i, sb); err != nil { + return nil, err + } + if opts := od.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.OneofOptions) + o.L1.Options = func() protoreflect.ProtoMessage { return opts } + } + } + return os, nil +} + +func (r descsByName) initExtensionDeclarations(xds []*descriptorpb.FieldDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (xs []filedesc.Extension, err error) { + xs = make([]filedesc.Extension, len(xds)) // allocate up-front to ensure stable pointers + for i, xd := range xds { + x := &xs[i] + x.L2 = new(filedesc.ExtensionL2) + if x.L0, err = r.makeBase(x, parent, xd.GetName(), i, sb); err != nil { + return nil, err + } + if opts := xd.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.FieldOptions) + x.L2.Options = func() protoreflect.ProtoMessage { return opts } + x.L2.IsPacked = opts.GetPacked() + } + x.L1.Number = protoreflect.FieldNumber(xd.GetNumber()) + x.L1.Cardinality = protoreflect.Cardinality(xd.GetLabel()) + if xd.Type != nil { + x.L1.Kind = protoreflect.Kind(xd.GetType()) + } + if xd.JsonName != nil { + x.L2.StringName.InitJSON(xd.GetJsonName()) + } + } + return xs, nil +} + +func (r descsByName) initServiceDeclarations(sds []*descriptorpb.ServiceDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (ss []filedesc.Service, err error) { + ss = make([]filedesc.Service, len(sds)) // allocate up-front to ensure stable pointers + for i, sd := range sds { + s := &ss[i] + s.L2 = new(filedesc.ServiceL2) + if s.L0, err = r.makeBase(s, parent, sd.GetName(), i, sb); err != nil { + return nil, err + } + if opts := sd.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.ServiceOptions) + s.L2.Options = func() protoreflect.ProtoMessage { return opts } + } + if s.L2.Methods.List, err = r.initMethodsFromDescriptorProto(sd.GetMethod(), s, sb); err != nil { + return nil, err + } + } + return ss, nil +} + +func (r descsByName) initMethodsFromDescriptorProto(mds []*descriptorpb.MethodDescriptorProto, parent protoreflect.Descriptor, sb *strs.Builder) (ms []filedesc.Method, err error) { + ms = make([]filedesc.Method, len(mds)) // allocate up-front to ensure stable pointers + for i, md := range mds { + m := &ms[i] + if m.L0, err = r.makeBase(m, parent, md.GetName(), i, sb); err != nil { + return nil, err + } + if opts := md.GetOptions(); opts != nil { + opts = proto.Clone(opts).(*descriptorpb.MethodOptions) + m.L1.Options = func() protoreflect.ProtoMessage { return opts } + } + m.L1.IsStreamingClient = md.GetClientStreaming() + m.L1.IsStreamingServer = md.GetServerStreaming() + } + return ms, nil +} + +func (r descsByName) makeBase(child, parent protoreflect.Descriptor, name string, idx int, sb *strs.Builder) (filedesc.BaseL0, error) { + if !protoreflect.Name(name).IsValid() { + return filedesc.BaseL0{}, errors.New("descriptor %q has an invalid nested name: %q", parent.FullName(), name) + } + + // Derive the full name of the child. + // Note that enum values are a sibling to the enum parent in the namespace. + var fullName protoreflect.FullName + if _, ok := parent.(protoreflect.EnumDescriptor); ok { + fullName = sb.AppendFullName(parent.FullName().Parent(), protoreflect.Name(name)) + } else { + fullName = sb.AppendFullName(parent.FullName(), protoreflect.Name(name)) + } + if _, ok := r[fullName]; ok { + return filedesc.BaseL0{}, errors.New("descriptor %q already declared", fullName) + } + r[fullName] = child + + // TODO: Verify that the full name does not already exist in the resolver? + // This is not as critical since most usages of NewFile will register + // the created file back into the registry, which will perform this check. + + return filedesc.BaseL0{ + FullName: fullName, + ParentFile: parent.ParentFile().(*filedesc.File), + Parent: parent, + Index: idx, + }, nil +} diff --git a/vendor/google.golang.org/protobuf/reflect/protodesc/desc_resolve.go b/vendor/google.golang.org/protobuf/reflect/protodesc/desc_resolve.go new file mode 100644 index 00000000..cebb36cd --- /dev/null +++ b/vendor/google.golang.org/protobuf/reflect/protodesc/desc_resolve.go @@ -0,0 +1,286 @@ +// 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 protodesc + +import ( + "google.golang.org/protobuf/internal/encoding/defval" + "google.golang.org/protobuf/internal/errors" + "google.golang.org/protobuf/internal/filedesc" + "google.golang.org/protobuf/reflect/protoreflect" + "google.golang.org/protobuf/reflect/protoregistry" + + "google.golang.org/protobuf/types/descriptorpb" +) + +// resolver is a wrapper around a local registry of declarations within the file +// and the remote resolver. The remote resolver is restricted to only return +// descriptors that have been imported. +type resolver struct { + local descsByName + remote Resolver + imports importSet + + allowUnresolvable bool +} + +func (r *resolver) resolveMessageDependencies(ms []filedesc.Message, mds []*descriptorpb.DescriptorProto) (err error) { + for i, md := range mds { + m := &ms[i] + for j, fd := range md.GetField() { + f := &m.L2.Fields.List[j] + if f.L1.Cardinality == protoreflect.Required { + m.L2.RequiredNumbers.List = append(m.L2.RequiredNumbers.List, f.L1.Number) + } + if fd.OneofIndex != nil { + k := int(fd.GetOneofIndex()) + if !(0 <= k && k < len(md.GetOneofDecl())) { + return errors.New("message field %q has an invalid oneof index: %d", f.FullName(), k) + } + o := &m.L2.Oneofs.List[k] + f.L1.ContainingOneof = o + o.L1.Fields.List = append(o.L1.Fields.List, f) + } + + if f.L1.Kind, f.L1.Enum, f.L1.Message, err = r.findTarget(f.Kind(), f.Parent().FullName(), partialName(fd.GetTypeName()), f.IsWeak()); err != nil { + return errors.New("message field %q cannot resolve type: %v", f.FullName(), err) + } + if fd.DefaultValue != nil { + v, ev, err := unmarshalDefault(fd.GetDefaultValue(), f, r.allowUnresolvable) + if err != nil { + return errors.New("message field %q has invalid default: %v", f.FullName(), err) + } + f.L1.Default = filedesc.DefaultValue(v, ev) + } + } + + if err := r.resolveMessageDependencies(m.L1.Messages.List, md.GetNestedType()); err != nil { + return err + } + if err := r.resolveExtensionDependencies(m.L1.Extensions.List, md.GetExtension()); err != nil { + return err + } + } + return nil +} + +func (r *resolver) resolveExtensionDependencies(xs []filedesc.Extension, xds []*descriptorpb.FieldDescriptorProto) (err error) { + for i, xd := range xds { + x := &xs[i] + if x.L1.Extendee, err = r.findMessageDescriptor(x.Parent().FullName(), partialName(xd.GetExtendee()), false); err != nil { + return errors.New("extension field %q cannot resolve extendee: %v", x.FullName(), err) + } + if x.L1.Kind, x.L2.Enum, x.L2.Message, err = r.findTarget(x.Kind(), x.Parent().FullName(), partialName(xd.GetTypeName()), false); err != nil { + return errors.New("extension field %q cannot resolve type: %v", x.FullName(), err) + } + if xd.DefaultValue != nil { + v, ev, err := unmarshalDefault(xd.GetDefaultValue(), x, r.allowUnresolvable) + if err != nil { + return errors.New("extension field %q has invalid default: %v", x.FullName(), err) + } + x.L2.Default = filedesc.DefaultValue(v, ev) + } + } + return nil +} + +func (r *resolver) resolveServiceDependencies(ss []filedesc.Service, sds []*descriptorpb.ServiceDescriptorProto) (err error) { + for i, sd := range sds { + s := &ss[i] + for j, md := range sd.GetMethod() { + m := &s.L2.Methods.List[j] + m.L1.Input, err = r.findMessageDescriptor(m.Parent().FullName(), partialName(md.GetInputType()), false) + if err != nil { + return errors.New("service method %q cannot resolve input: %v", m.FullName(), err) + } + m.L1.Output, err = r.findMessageDescriptor(s.FullName(), partialName(md.GetOutputType()), false) + if err != nil { + return errors.New("service method %q cannot resolve output: %v", m.FullName(), err) + } + } + } + return nil +} + +// findTarget finds an enum or message descriptor if k is an enum, message, +// group, or unknown. If unknown, and the name could be resolved, the kind +// returned kind is set based on the type of the resolved descriptor. +func (r *resolver) findTarget(k protoreflect.Kind, scope protoreflect.FullName, ref partialName, isWeak bool) (protoreflect.Kind, protoreflect.EnumDescriptor, protoreflect.MessageDescriptor, error) { + switch k { + case protoreflect.EnumKind: + ed, err := r.findEnumDescriptor(scope, ref, isWeak) + if err != nil { + return 0, nil, nil, err + } + return k, ed, nil, nil + case protoreflect.MessageKind, protoreflect.GroupKind: + md, err := r.findMessageDescriptor(scope, ref, isWeak) + if err != nil { + return 0, nil, nil, err + } + return k, nil, md, nil + case 0: + // Handle unspecified kinds (possible with parsers that operate + // on a per-file basis without knowledge of dependencies). + d, err := r.findDescriptor(scope, ref) + if err == protoregistry.NotFound && (r.allowUnresolvable || isWeak) { + return k, filedesc.PlaceholderEnum(ref.FullName()), filedesc.PlaceholderMessage(ref.FullName()), nil + } else if err == protoregistry.NotFound { + return 0, nil, nil, errors.New("%q not found", ref.FullName()) + } else if err != nil { + return 0, nil, nil, err + } + switch d := d.(type) { + case protoreflect.EnumDescriptor: + return protoreflect.EnumKind, d, nil, nil + case protoreflect.MessageDescriptor: + return protoreflect.MessageKind, nil, d, nil + default: + return 0, nil, nil, errors.New("unknown kind") + } + default: + if ref != "" { + return 0, nil, nil, errors.New("target name cannot be specified for %v", k) + } + if !k.IsValid() { + return 0, nil, nil, errors.New("invalid kind: %d", k) + } + return k, nil, nil, nil + } +} + +// findDescriptor finds the descriptor by name, +// which may be a relative name within some scope. +// +// Suppose the scope was "fizz.buzz" and the reference was "Foo.Bar", +// then the following full names are searched: +// * fizz.buzz.Foo.Bar +// * fizz.Foo.Bar +// * Foo.Bar +func (r *resolver) findDescriptor(scope protoreflect.FullName, ref partialName) (protoreflect.Descriptor, error) { + if !ref.IsValid() { + return nil, errors.New("invalid name reference: %q", ref) + } + if ref.IsFull() { + scope, ref = "", ref[1:] + } + var foundButNotImported protoreflect.Descriptor + for { + // Derive the full name to search. + s := protoreflect.FullName(ref) + if scope != "" { + s = scope + "." + s + } + + // Check the current file for the descriptor. + if d, ok := r.local[s]; ok { + return d, nil + } + + // Check the remote registry for the descriptor. + d, err := r.remote.FindDescriptorByName(s) + if err == nil { + // Only allow descriptors covered by one of the imports. + if r.imports[d.ParentFile().Path()] { + return d, nil + } + foundButNotImported = d + } else if err != protoregistry.NotFound { + return nil, errors.Wrap(err, "%q", s) + } + + // Continue on at a higher level of scoping. + if scope == "" { + if d := foundButNotImported; d != nil { + return nil, errors.New("resolved %q, but %q is not imported", d.FullName(), d.ParentFile().Path()) + } + return nil, protoregistry.NotFound + } + scope = scope.Parent() + } +} + +func (r *resolver) findEnumDescriptor(scope protoreflect.FullName, ref partialName, isWeak bool) (protoreflect.EnumDescriptor, error) { + d, err := r.findDescriptor(scope, ref) + if err == protoregistry.NotFound && (r.allowUnresolvable || isWeak) { + return filedesc.PlaceholderEnum(ref.FullName()), nil + } else if err == protoregistry.NotFound { + return nil, errors.New("%q not found", ref.FullName()) + } else if err != nil { + return nil, err + } + ed, ok := d.(protoreflect.EnumDescriptor) + if !ok { + return nil, errors.New("resolved %q, but it is not an enum", d.FullName()) + } + return ed, nil +} + +func (r *resolver) findMessageDescriptor(scope protoreflect.FullName, ref partialName, isWeak bool) (protoreflect.MessageDescriptor, error) { + d, err := r.findDescriptor(scope, ref) + if err == protoregistry.NotFound && (r.allowUnresolvable || isWeak) { + return filedesc.PlaceholderMessage(ref.FullName()), nil + } else if err == protoregistry.NotFound { + return nil, errors.New("%q not found", ref.FullName()) + } else if err != nil { + return nil, err + } + md, ok := d.(protoreflect.MessageDescriptor) + if !ok { + return nil, errors.New("resolved %q, but it is not an message", d.FullName()) + } + return md, nil +} + +// partialName is the partial name. A leading dot means that the name is full, +// otherwise the name is relative to some current scope. +// See google.protobuf.FieldDescriptorProto.type_name. +type partialName string + +func (s partialName) IsFull() bool { + return len(s) > 0 && s[0] == '.' +} + +func (s partialName) IsValid() bool { + if s.IsFull() { + return protoreflect.FullName(s[1:]).IsValid() + } + return protoreflect.FullName(s).IsValid() +} + +const unknownPrefix = "*." + +// FullName converts the partial name to a full name on a best-effort basis. +// If relative, it creates an invalid full name, using a "*." prefix +// to indicate that the start of the full name is unknown. +func (s partialName) FullName() protoreflect.FullName { + if s.IsFull() { + return protoreflect.FullName(s[1:]) + } + return protoreflect.FullName(unknownPrefix + s) +} + +func unmarshalDefault(s string, fd protoreflect.FieldDescriptor, allowUnresolvable bool) (protoreflect.Value, protoreflect.EnumValueDescriptor, error) { + var evs protoreflect.EnumValueDescriptors + if fd.Enum() != nil { + evs = fd.Enum().Values() + } + v, ev, err := defval.Unmarshal(s, fd.Kind(), evs, defval.Descriptor) + if err != nil && allowUnresolvable && evs != nil && protoreflect.Name(s).IsValid() { + v = protoreflect.ValueOfEnum(0) + if evs.Len() > 0 { + v = protoreflect.ValueOfEnum(evs.Get(0).Number()) + } + ev = filedesc.PlaceholderEnumValue(fd.Enum().FullName().Parent().Append(protoreflect.Name(s))) + } else if err != nil { + return v, ev, err + } + if fd.Syntax() == protoreflect.Proto3 { + return v, ev, errors.New("cannot be specified under proto3 semantics") + } + if fd.Kind() == protoreflect.MessageKind || fd.Kind() == protoreflect.GroupKind || fd.Cardinality() == protoreflect.Repeated { + return v, ev, errors.New("cannot be specified on composite types") + } + return v, ev, nil +} diff --git a/vendor/google.golang.org/protobuf/reflect/protodesc/desc_validate.go b/vendor/google.golang.org/protobuf/reflect/protodesc/desc_validate.go new file mode 100644 index 00000000..9af1d564 --- /dev/null +++ b/vendor/google.golang.org/protobuf/reflect/protodesc/desc_validate.go @@ -0,0 +1,374 @@ +// 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 protodesc + +import ( + "strings" + "unicode" + + "google.golang.org/protobuf/encoding/protowire" + "google.golang.org/protobuf/internal/errors" + "google.golang.org/protobuf/internal/filedesc" + "google.golang.org/protobuf/internal/flags" + "google.golang.org/protobuf/internal/genid" + "google.golang.org/protobuf/internal/strs" + "google.golang.org/protobuf/reflect/protoreflect" + + "google.golang.org/protobuf/types/descriptorpb" +) + +func validateEnumDeclarations(es []filedesc.Enum, eds []*descriptorpb.EnumDescriptorProto) error { + for i, ed := range eds { + e := &es[i] + if err := e.L2.ReservedNames.CheckValid(); err != nil { + return errors.New("enum %q reserved names has %v", e.FullName(), err) + } + if err := e.L2.ReservedRanges.CheckValid(); err != nil { + return errors.New("enum %q reserved ranges has %v", e.FullName(), err) + } + if len(ed.GetValue()) == 0 { + return errors.New("enum %q must contain at least one value declaration", e.FullName()) + } + allowAlias := ed.GetOptions().GetAllowAlias() + foundAlias := false + for i := 0; i < e.Values().Len(); i++ { + v1 := e.Values().Get(i) + if v2 := e.Values().ByNumber(v1.Number()); v1 != v2 { + foundAlias = true + if !allowAlias { + return errors.New("enum %q has conflicting non-aliased values on number %d: %q with %q", e.FullName(), v1.Number(), v1.Name(), v2.Name()) + } + } + } + if allowAlias && !foundAlias { + return errors.New("enum %q allows aliases, but none were found", e.FullName()) + } + if e.Syntax() == protoreflect.Proto3 { + if v := e.Values().Get(0); v.Number() != 0 { + return errors.New("enum %q using proto3 semantics must have zero number for the first value", v.FullName()) + } + // Verify that value names in proto3 do not conflict if the + // case-insensitive prefix is removed. + // See protoc v3.8.0: src/google/protobuf/descriptor.cc:4991-5055 + names := map[string]protoreflect.EnumValueDescriptor{} + prefix := strings.Replace(strings.ToLower(string(e.Name())), "_", "", -1) + for i := 0; i < e.Values().Len(); i++ { + v1 := e.Values().Get(i) + s := strs.EnumValueName(strs.TrimEnumPrefix(string(v1.Name()), prefix)) + if v2, ok := names[s]; ok && v1.Number() != v2.Number() { + return errors.New("enum %q using proto3 semantics has conflict: %q with %q", e.FullName(), v1.Name(), v2.Name()) + } + names[s] = v1 + } + } + + for j, vd := range ed.GetValue() { + v := &e.L2.Values.List[j] + if vd.Number == nil { + return errors.New("enum value %q must have a specified number", v.FullName()) + } + if e.L2.ReservedNames.Has(v.Name()) { + return errors.New("enum value %q must not use reserved name", v.FullName()) + } + if e.L2.ReservedRanges.Has(v.Number()) { + return errors.New("enum value %q must not use reserved number %d", v.FullName(), v.Number()) + } + } + } + return nil +} + +func validateMessageDeclarations(ms []filedesc.Message, mds []*descriptorpb.DescriptorProto) error { + for i, md := range mds { + m := &ms[i] + + // Handle the message descriptor itself. + isMessageSet := md.GetOptions().GetMessageSetWireFormat() + if err := m.L2.ReservedNames.CheckValid(); err != nil { + return errors.New("message %q reserved names has %v", m.FullName(), err) + } + if err := m.L2.ReservedRanges.CheckValid(isMessageSet); err != nil { + return errors.New("message %q reserved ranges has %v", m.FullName(), err) + } + if err := m.L2.ExtensionRanges.CheckValid(isMessageSet); err != nil { + return errors.New("message %q extension ranges has %v", m.FullName(), err) + } + if err := (*filedesc.FieldRanges).CheckOverlap(&m.L2.ReservedRanges, &m.L2.ExtensionRanges); err != nil { + return errors.New("message %q reserved and extension ranges has %v", m.FullName(), err) + } + for i := 0; i < m.Fields().Len(); i++ { + f1 := m.Fields().Get(i) + if f2 := m.Fields().ByNumber(f1.Number()); f1 != f2 { + return errors.New("message %q has conflicting fields: %q with %q", m.FullName(), f1.Name(), f2.Name()) + } + } + if isMessageSet && !flags.ProtoLegacy { + return errors.New("message %q is a MessageSet, which is a legacy proto1 feature that is no longer supported", m.FullName()) + } + if isMessageSet && (m.Syntax() != protoreflect.Proto2 || m.Fields().Len() > 0 || m.ExtensionRanges().Len() == 0) { + return errors.New("message %q is an invalid proto1 MessageSet", m.FullName()) + } + if m.Syntax() == protoreflect.Proto3 { + if m.ExtensionRanges().Len() > 0 { + return errors.New("message %q using proto3 semantics cannot have extension ranges", m.FullName()) + } + // Verify that field names in proto3 do not conflict if lowercased + // with all underscores removed. + // See protoc v3.8.0: src/google/protobuf/descriptor.cc:5830-5847 + names := map[string]protoreflect.FieldDescriptor{} + for i := 0; i < m.Fields().Len(); i++ { + f1 := m.Fields().Get(i) + s := strings.Replace(strings.ToLower(string(f1.Name())), "_", "", -1) + if f2, ok := names[s]; ok { + return errors.New("message %q using proto3 semantics has conflict: %q with %q", m.FullName(), f1.Name(), f2.Name()) + } + names[s] = f1 + } + } + + for j, fd := range md.GetField() { + f := &m.L2.Fields.List[j] + if m.L2.ReservedNames.Has(f.Name()) { + return errors.New("message field %q must not use reserved name", f.FullName()) + } + if !f.Number().IsValid() { + return errors.New("message field %q has an invalid number: %d", f.FullName(), f.Number()) + } + if !f.Cardinality().IsValid() { + return errors.New("message field %q has an invalid cardinality: %d", f.FullName(), f.Cardinality()) + } + if m.L2.ReservedRanges.Has(f.Number()) { + return errors.New("message field %q must not use reserved number %d", f.FullName(), f.Number()) + } + if m.L2.ExtensionRanges.Has(f.Number()) { + return errors.New("message field %q with number %d in extension range", f.FullName(), f.Number()) + } + if fd.Extendee != nil { + return errors.New("message field %q may not have extendee: %q", f.FullName(), fd.GetExtendee()) + } + if f.L1.IsProto3Optional { + if f.Syntax() != protoreflect.Proto3 { + return errors.New("message field %q under proto3 optional semantics must be specified in the proto3 syntax", f.FullName()) + } + if f.Cardinality() != protoreflect.Optional { + return errors.New("message field %q under proto3 optional semantics must have optional cardinality", f.FullName()) + } + if f.ContainingOneof() != nil && f.ContainingOneof().Fields().Len() != 1 { + return errors.New("message field %q under proto3 optional semantics must be within a single element oneof", f.FullName()) + } + } + if f.IsWeak() && !flags.ProtoLegacy { + return errors.New("message field %q is a weak field, which is a legacy proto1 feature that is no longer supported", f.FullName()) + } + if f.IsWeak() && (f.Syntax() != protoreflect.Proto2 || !isOptionalMessage(f) || f.ContainingOneof() != nil) { + return errors.New("message field %q may only be weak for an optional message", f.FullName()) + } + if f.IsPacked() && !isPackable(f) { + return errors.New("message field %q is not packable", f.FullName()) + } + if err := checkValidGroup(f); err != nil { + return errors.New("message field %q is an invalid group: %v", f.FullName(), err) + } + if err := checkValidMap(f); err != nil { + return errors.New("message field %q is an invalid map: %v", f.FullName(), err) + } + if f.Syntax() == protoreflect.Proto3 { + if f.Cardinality() == protoreflect.Required { + return errors.New("message field %q using proto3 semantics cannot be required", f.FullName()) + } + if f.Enum() != nil && !f.Enum().IsPlaceholder() && f.Enum().Syntax() != protoreflect.Proto3 { + return errors.New("message field %q using proto3 semantics may only depend on a proto3 enum", f.FullName()) + } + } + } + seenSynthetic := false // synthetic oneofs for proto3 optional must come after real oneofs + for j := range md.GetOneofDecl() { + o := &m.L2.Oneofs.List[j] + if o.Fields().Len() == 0 { + return errors.New("message oneof %q must contain at least one field declaration", o.FullName()) + } + if n := o.Fields().Len(); n-1 != (o.Fields().Get(n-1).Index() - o.Fields().Get(0).Index()) { + return errors.New("message oneof %q must have consecutively declared fields", o.FullName()) + } + + if o.IsSynthetic() { + seenSynthetic = true + continue + } + if !o.IsSynthetic() && seenSynthetic { + return errors.New("message oneof %q must be declared before synthetic oneofs", o.FullName()) + } + + for i := 0; i < o.Fields().Len(); i++ { + f := o.Fields().Get(i) + if f.Cardinality() != protoreflect.Optional { + return errors.New("message field %q belongs in a oneof and must be optional", f.FullName()) + } + if f.IsWeak() { + return errors.New("message field %q belongs in a oneof and must not be a weak reference", f.FullName()) + } + } + } + + if err := validateEnumDeclarations(m.L1.Enums.List, md.GetEnumType()); err != nil { + return err + } + if err := validateMessageDeclarations(m.L1.Messages.List, md.GetNestedType()); err != nil { + return err + } + if err := validateExtensionDeclarations(m.L1.Extensions.List, md.GetExtension()); err != nil { + return err + } + } + return nil +} + +func validateExtensionDeclarations(xs []filedesc.Extension, xds []*descriptorpb.FieldDescriptorProto) error { + for i, xd := range xds { + x := &xs[i] + // NOTE: Avoid using the IsValid method since extensions to MessageSet + // may have a field number higher than normal. This check only verifies + // that the number is not negative or reserved. We check again later + // if we know that the extendee is definitely not a MessageSet. + if n := x.Number(); n < 0 || (protowire.FirstReservedNumber <= n && n <= protowire.LastReservedNumber) { + return errors.New("extension field %q has an invalid number: %d", x.FullName(), x.Number()) + } + if !x.Cardinality().IsValid() || x.Cardinality() == protoreflect.Required { + return errors.New("extension field %q has an invalid cardinality: %d", x.FullName(), x.Cardinality()) + } + if xd.JsonName != nil { + // A bug in older versions of protoc would always populate the + // "json_name" option for extensions when it is meaningless. + // When it did so, it would always use the camel-cased field name. + if xd.GetJsonName() != strs.JSONCamelCase(string(x.Name())) { + return errors.New("extension field %q may not have an explicitly set JSON name: %q", x.FullName(), xd.GetJsonName()) + } + } + if xd.OneofIndex != nil { + return errors.New("extension field %q may not be part of a oneof", x.FullName()) + } + if md := x.ContainingMessage(); !md.IsPlaceholder() { + if !md.ExtensionRanges().Has(x.Number()) { + return errors.New("extension field %q extends %q with non-extension field number: %d", x.FullName(), md.FullName(), x.Number()) + } + isMessageSet := md.Options().(*descriptorpb.MessageOptions).GetMessageSetWireFormat() + if isMessageSet && !isOptionalMessage(x) { + return errors.New("extension field %q extends MessageSet and must be an optional message", x.FullName()) + } + if !isMessageSet && !x.Number().IsValid() { + return errors.New("extension field %q has an invalid number: %d", x.FullName(), x.Number()) + } + } + if xd.GetOptions().GetWeak() { + return errors.New("extension field %q cannot be a weak reference", x.FullName()) + } + if x.IsPacked() && !isPackable(x) { + return errors.New("extension field %q is not packable", x.FullName()) + } + if err := checkValidGroup(x); err != nil { + return errors.New("extension field %q is an invalid group: %v", x.FullName(), err) + } + if md := x.Message(); md != nil && md.IsMapEntry() { + return errors.New("extension field %q cannot be a map entry", x.FullName()) + } + if x.Syntax() == protoreflect.Proto3 { + switch x.ContainingMessage().FullName() { + case (*descriptorpb.FileOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.EnumOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.EnumValueOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.MessageOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.FieldOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.OneofOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.ExtensionRangeOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.ServiceOptions)(nil).ProtoReflect().Descriptor().FullName(): + case (*descriptorpb.MethodOptions)(nil).ProtoReflect().Descriptor().FullName(): + default: + return errors.New("extension field %q cannot be declared in proto3 unless extended descriptor options", x.FullName()) + } + } + } + return nil +} + +// isOptionalMessage reports whether this is an optional message. +// If the kind is unknown, it is assumed to be a message. +func isOptionalMessage(fd protoreflect.FieldDescriptor) bool { + return (fd.Kind() == 0 || fd.Kind() == protoreflect.MessageKind) && fd.Cardinality() == protoreflect.Optional +} + +// isPackable checks whether the pack option can be specified. +func isPackable(fd protoreflect.FieldDescriptor) bool { + switch fd.Kind() { + case protoreflect.StringKind, protoreflect.BytesKind, protoreflect.MessageKind, protoreflect.GroupKind: + return false + } + return fd.IsList() +} + +// checkValidGroup reports whether fd is a valid group according to the same +// rules that protoc imposes. +func checkValidGroup(fd protoreflect.FieldDescriptor) error { + md := fd.Message() + switch { + case fd.Kind() != protoreflect.GroupKind: + return nil + case fd.Syntax() != protoreflect.Proto2: + return errors.New("invalid under proto2 semantics") + case md == nil || md.IsPlaceholder(): + return errors.New("message must be resolvable") + case fd.FullName().Parent() != md.FullName().Parent(): + return errors.New("message and field must be declared in the same scope") + case !unicode.IsUpper(rune(md.Name()[0])): + return errors.New("message name must start with an uppercase") + case fd.Name() != protoreflect.Name(strings.ToLower(string(md.Name()))): + return errors.New("field name must be lowercased form of the message name") + } + return nil +} + +// checkValidMap checks whether the field is a valid map according to the same +// rules that protoc imposes. +// See protoc v3.8.0: src/google/protobuf/descriptor.cc:6045-6115 +func checkValidMap(fd protoreflect.FieldDescriptor) error { + md := fd.Message() + switch { + case md == nil || !md.IsMapEntry(): + return nil + case fd.FullName().Parent() != md.FullName().Parent(): + return errors.New("message and field must be declared in the same scope") + case md.Name() != protoreflect.Name(strs.MapEntryName(string(fd.Name()))): + return errors.New("incorrect implicit map entry name") + case fd.Cardinality() != protoreflect.Repeated: + return errors.New("field must be repeated") + case md.Fields().Len() != 2: + return errors.New("message must have exactly two fields") + case md.ExtensionRanges().Len() > 0: + return errors.New("message must not have any extension ranges") + case md.Enums().Len()+md.Messages().Len()+md.Extensions().Len() > 0: + return errors.New("message must not have any nested declarations") + } + kf := md.Fields().Get(0) + vf := md.Fields().Get(1) + switch { + case kf.Name() != genid.MapEntry_Key_field_name || kf.Number() != genid.MapEntry_Key_field_number || kf.Cardinality() != protoreflect.Optional || kf.ContainingOneof() != nil || kf.HasDefault(): + return errors.New("invalid key field") + case vf.Name() != genid.MapEntry_Value_field_name || vf.Number() != genid.MapEntry_Value_field_number || vf.Cardinality() != protoreflect.Optional || vf.ContainingOneof() != nil || vf.HasDefault(): + return errors.New("invalid value field") + } + switch kf.Kind() { + case protoreflect.BoolKind: // bool + case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind: // int32 + case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind: // int64 + case protoreflect.Uint32Kind, protoreflect.Fixed32Kind: // uint32 + case protoreflect.Uint64Kind, protoreflect.Fixed64Kind: // uint64 + case protoreflect.StringKind: // string + default: + return errors.New("invalid key kind: %v", kf.Kind()) + } + if e := vf.Enum(); e != nil && e.Values().Len() > 0 && e.Values().Get(0).Number() != 0 { + return errors.New("map enum value must have zero number for the first value") + } + return nil +} diff --git a/vendor/google.golang.org/protobuf/reflect/protodesc/proto.go b/vendor/google.golang.org/protobuf/reflect/protodesc/proto.go new file mode 100644 index 00000000..a7c5ceff --- /dev/null +++ b/vendor/google.golang.org/protobuf/reflect/protodesc/proto.go @@ -0,0 +1,252 @@ +// 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 protodesc + +import ( + "fmt" + "strings" + + "google.golang.org/protobuf/internal/encoding/defval" + "google.golang.org/protobuf/internal/strs" + "google.golang.org/protobuf/proto" + "google.golang.org/protobuf/reflect/protoreflect" + + "google.golang.org/protobuf/types/descriptorpb" +) + +// ToFileDescriptorProto copies a protoreflect.FileDescriptor into a +// google.protobuf.FileDescriptorProto message. +func ToFileDescriptorProto(file protoreflect.FileDescriptor) *descriptorpb.FileDescriptorProto { + p := &descriptorpb.FileDescriptorProto{ + Name: proto.String(file.Path()), + Options: proto.Clone(file.Options()).(*descriptorpb.FileOptions), + } + if file.Package() != "" { + p.Package = proto.String(string(file.Package())) + } + for i, imports := 0, file.Imports(); i < imports.Len(); i++ { + imp := imports.Get(i) + p.Dependency = append(p.Dependency, imp.Path()) + if imp.IsPublic { + p.PublicDependency = append(p.PublicDependency, int32(i)) + } + if imp.IsWeak { + p.WeakDependency = append(p.WeakDependency, int32(i)) + } + } + for i, locs := 0, file.SourceLocations(); i < locs.Len(); i++ { + loc := locs.Get(i) + l := &descriptorpb.SourceCodeInfo_Location{} + l.Path = append(l.Path, loc.Path...) + if loc.StartLine == loc.EndLine { + l.Span = []int32{int32(loc.StartLine), int32(loc.StartColumn), int32(loc.EndColumn)} + } else { + l.Span = []int32{int32(loc.StartLine), int32(loc.StartColumn), int32(loc.EndLine), int32(loc.EndColumn)} + } + l.LeadingDetachedComments = append([]string(nil), loc.LeadingDetachedComments...) + if loc.LeadingComments != "" { + l.LeadingComments = proto.String(loc.LeadingComments) + } + if loc.TrailingComments != "" { + l.TrailingComments = proto.String(loc.TrailingComments) + } + if p.SourceCodeInfo == nil { + p.SourceCodeInfo = &descriptorpb.SourceCodeInfo{} + } + p.SourceCodeInfo.Location = append(p.SourceCodeInfo.Location, l) + + } + for i, messages := 0, file.Messages(); i < messages.Len(); i++ { + p.MessageType = append(p.MessageType, ToDescriptorProto(messages.Get(i))) + } + for i, enums := 0, file.Enums(); i < enums.Len(); i++ { + p.EnumType = append(p.EnumType, ToEnumDescriptorProto(enums.Get(i))) + } + for i, services := 0, file.Services(); i < services.Len(); i++ { + p.Service = append(p.Service, ToServiceDescriptorProto(services.Get(i))) + } + for i, exts := 0, file.Extensions(); i < exts.Len(); i++ { + p.Extension = append(p.Extension, ToFieldDescriptorProto(exts.Get(i))) + } + if syntax := file.Syntax(); syntax != protoreflect.Proto2 { + p.Syntax = proto.String(file.Syntax().String()) + } + return p +} + +// ToDescriptorProto copies a protoreflect.MessageDescriptor into a +// google.protobuf.DescriptorProto message. +func ToDescriptorProto(message protoreflect.MessageDescriptor) *descriptorpb.DescriptorProto { + p := &descriptorpb.DescriptorProto{ + Name: proto.String(string(message.Name())), + Options: proto.Clone(message.Options()).(*descriptorpb.MessageOptions), + } + for i, fields := 0, message.Fields(); i < fields.Len(); i++ { + p.Field = append(p.Field, ToFieldDescriptorProto(fields.Get(i))) + } + for i, exts := 0, message.Extensions(); i < exts.Len(); i++ { + p.Extension = append(p.Extension, ToFieldDescriptorProto(exts.Get(i))) + } + for i, messages := 0, message.Messages(); i < messages.Len(); i++ { + p.NestedType = append(p.NestedType, ToDescriptorProto(messages.Get(i))) + } + for i, enums := 0, message.Enums(); i < enums.Len(); i++ { + p.EnumType = append(p.EnumType, ToEnumDescriptorProto(enums.Get(i))) + } + for i, xranges := 0, message.ExtensionRanges(); i < xranges.Len(); i++ { + xrange := xranges.Get(i) + p.ExtensionRange = append(p.ExtensionRange, &descriptorpb.DescriptorProto_ExtensionRange{ + Start: proto.Int32(int32(xrange[0])), + End: proto.Int32(int32(xrange[1])), + Options: proto.Clone(message.ExtensionRangeOptions(i)).(*descriptorpb.ExtensionRangeOptions), + }) + } + for i, oneofs := 0, message.Oneofs(); i < oneofs.Len(); i++ { + p.OneofDecl = append(p.OneofDecl, ToOneofDescriptorProto(oneofs.Get(i))) + } + for i, ranges := 0, message.ReservedRanges(); i < ranges.Len(); i++ { + rrange := ranges.Get(i) + p.ReservedRange = append(p.ReservedRange, &descriptorpb.DescriptorProto_ReservedRange{ + Start: proto.Int32(int32(rrange[0])), + End: proto.Int32(int32(rrange[1])), + }) + } + for i, names := 0, message.ReservedNames(); i < names.Len(); i++ { + p.ReservedName = append(p.ReservedName, string(names.Get(i))) + } + return p +} + +// ToFieldDescriptorProto copies a protoreflect.FieldDescriptor into a +// google.protobuf.FieldDescriptorProto message. +func ToFieldDescriptorProto(field protoreflect.FieldDescriptor) *descriptorpb.FieldDescriptorProto { + p := &descriptorpb.FieldDescriptorProto{ + Name: proto.String(string(field.Name())), + Number: proto.Int32(int32(field.Number())), + Label: descriptorpb.FieldDescriptorProto_Label(field.Cardinality()).Enum(), + Options: proto.Clone(field.Options()).(*descriptorpb.FieldOptions), + } + if field.IsExtension() { + p.Extendee = fullNameOf(field.ContainingMessage()) + } + if field.Kind().IsValid() { + p.Type = descriptorpb.FieldDescriptorProto_Type(field.Kind()).Enum() + } + if field.Enum() != nil { + p.TypeName = fullNameOf(field.Enum()) + } + if field.Message() != nil { + p.TypeName = fullNameOf(field.Message()) + } + if field.HasJSONName() { + // A bug in older versions of protoc would always populate the + // "json_name" option for extensions when it is meaningless. + // When it did so, it would always use the camel-cased field name. + if field.IsExtension() { + p.JsonName = proto.String(strs.JSONCamelCase(string(field.Name()))) + } else { + p.JsonName = proto.String(field.JSONName()) + } + } + if field.Syntax() == protoreflect.Proto3 && field.HasOptionalKeyword() { + p.Proto3Optional = proto.Bool(true) + } + if field.HasDefault() { + def, err := defval.Marshal(field.Default(), field.DefaultEnumValue(), field.Kind(), defval.Descriptor) + if err != nil && field.DefaultEnumValue() != nil { + def = string(field.DefaultEnumValue().Name()) // occurs for unresolved enum values + } else if err != nil { + panic(fmt.Sprintf("%v: %v", field.FullName(), err)) + } + p.DefaultValue = proto.String(def) + } + if oneof := field.ContainingOneof(); oneof != nil { + p.OneofIndex = proto.Int32(int32(oneof.Index())) + } + return p +} + +// ToOneofDescriptorProto copies a protoreflect.OneofDescriptor into a +// google.protobuf.OneofDescriptorProto message. +func ToOneofDescriptorProto(oneof protoreflect.OneofDescriptor) *descriptorpb.OneofDescriptorProto { + return &descriptorpb.OneofDescriptorProto{ + Name: proto.String(string(oneof.Name())), + Options: proto.Clone(oneof.Options()).(*descriptorpb.OneofOptions), + } +} + +// ToEnumDescriptorProto copies a protoreflect.EnumDescriptor into a +// google.protobuf.EnumDescriptorProto message. +func ToEnumDescriptorProto(enum protoreflect.EnumDescriptor) *descriptorpb.EnumDescriptorProto { + p := &descriptorpb.EnumDescriptorProto{ + Name: proto.String(string(enum.Name())), + Options: proto.Clone(enum.Options()).(*descriptorpb.EnumOptions), + } + for i, values := 0, enum.Values(); i < values.Len(); i++ { + p.Value = append(p.Value, ToEnumValueDescriptorProto(values.Get(i))) + } + for i, ranges := 0, enum.ReservedRanges(); i < ranges.Len(); i++ { + rrange := ranges.Get(i) + p.ReservedRange = append(p.ReservedRange, &descriptorpb.EnumDescriptorProto_EnumReservedRange{ + Start: proto.Int32(int32(rrange[0])), + End: proto.Int32(int32(rrange[1])), + }) + } + for i, names := 0, enum.ReservedNames(); i < names.Len(); i++ { + p.ReservedName = append(p.ReservedName, string(names.Get(i))) + } + return p +} + +// ToEnumValueDescriptorProto copies a protoreflect.EnumValueDescriptor into a +// google.protobuf.EnumValueDescriptorProto message. +func ToEnumValueDescriptorProto(value protoreflect.EnumValueDescriptor) *descriptorpb.EnumValueDescriptorProto { + return &descriptorpb.EnumValueDescriptorProto{ + Name: proto.String(string(value.Name())), + Number: proto.Int32(int32(value.Number())), + Options: proto.Clone(value.Options()).(*descriptorpb.EnumValueOptions), + } +} + +// ToServiceDescriptorProto copies a protoreflect.ServiceDescriptor into a +// google.protobuf.ServiceDescriptorProto message. +func ToServiceDescriptorProto(service protoreflect.ServiceDescriptor) *descriptorpb.ServiceDescriptorProto { + p := &descriptorpb.ServiceDescriptorProto{ + Name: proto.String(string(service.Name())), + Options: proto.Clone(service.Options()).(*descriptorpb.ServiceOptions), + } + for i, methods := 0, service.Methods(); i < methods.Len(); i++ { + p.Method = append(p.Method, ToMethodDescriptorProto(methods.Get(i))) + } + return p +} + +// ToMethodDescriptorProto copies a protoreflect.MethodDescriptor into a +// google.protobuf.MethodDescriptorProto message. +func ToMethodDescriptorProto(method protoreflect.MethodDescriptor) *descriptorpb.MethodDescriptorProto { + p := &descriptorpb.MethodDescriptorProto{ + Name: proto.String(string(method.Name())), + InputType: fullNameOf(method.Input()), + OutputType: fullNameOf(method.Output()), + Options: proto.Clone(method.Options()).(*descriptorpb.MethodOptions), + } + if method.IsStreamingClient() { + p.ClientStreaming = proto.Bool(true) + } + if method.IsStreamingServer() { + p.ServerStreaming = proto.Bool(true) + } + return p +} + +func fullNameOf(d protoreflect.Descriptor) *string { + if d == nil { + return nil + } + if strings.HasPrefix(string(d.FullName()), unknownPrefix) { + return proto.String(string(d.FullName()[len(unknownPrefix):])) + } + return proto.String("." + string(d.FullName())) +} |