| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package protoencoding |
| |
| import ( |
| "google.golang.org/protobuf/proto" |
| "google.golang.org/protobuf/reflect/protoreflect" |
| ) |
| |
| // ReparseUnrecognized uses the given resolver to parse any unrecognized fields in the |
| // given reflectMessage. It does so recursively, resolving any unrecognized fields in |
| // nested messages. |
| func ReparseUnrecognized(resolver Resolver, reflectMessage protoreflect.Message) error { |
| if resolver == nil { |
| return nil |
| } |
| unknown := reflectMessage.GetUnknown() |
| if len(unknown) > 0 { |
| reflectMessage.SetUnknown(nil) |
| options := proto.UnmarshalOptions{ |
| Resolver: resolver, |
| Merge: true, |
| } |
| if err := options.Unmarshal(unknown, reflectMessage.Interface()); err != nil { |
| return err |
| } |
| } |
| var err error |
| reflectMessage.Range(func(fieldDescriptor protoreflect.FieldDescriptor, value protoreflect.Value) bool { |
| err = reparseUnrecognizedInField(resolver, fieldDescriptor, value) |
| return err == nil |
| }) |
| return err |
| } |
| |
| func reparseUnrecognizedInField(resolver Resolver, fieldDescriptor protoreflect.FieldDescriptor, value protoreflect.Value) error { |
| if fieldDescriptor.IsMap() { |
| valDesc := fieldDescriptor.MapValue() |
| if valDesc.Kind() != protoreflect.MessageKind && valDesc.Kind() != protoreflect.GroupKind { |
| // nothing to reparse |
| return nil |
| } |
| var err error |
| value.Map().Range(func(k protoreflect.MapKey, v protoreflect.Value) bool { |
| err = ReparseUnrecognized(resolver, v.Message()) |
| return err == nil |
| }) |
| return err |
| } |
| if fieldDescriptor.Kind() != protoreflect.MessageKind && fieldDescriptor.Kind() != protoreflect.GroupKind { |
| // nothing to reparse |
| return nil |
| } |
| if fieldDescriptor.IsList() { |
| list := value.List() |
| for i := 0; i < list.Len(); i++ { |
| if err := ReparseUnrecognized(resolver, list.Get(i).Message()); err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| return ReparseUnrecognized(resolver, value.Message()) |
| } |