249 lines
9.5 KiB
Go
249 lines
9.5 KiB
Go
// 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
|
|
}
|