/// <summary> /// Parse a single field from <paramref name="input"/> and merge it /// into this set. /// </summary> /// <param name="tag">The field's tag number, which was already parsed.</param> /// <param name="input">The coded input stream containing the field</param> /// <returns>false if the tag is an "end group" tag, true otherwise</returns> public bool MergeFieldFrom(uint tag, ICodedInputStream input) { if (tag == 0) { input.SkipField(); return(true); } int number = WireFormat.GetTagFieldNumber(tag); switch (WireFormat.GetTagWireType(tag)) { case WireFormat.WireType.Varint: { ulong uint64 = 0; if (input.ReadUInt64(ref uint64)) { GetFieldBuilder(number).AddVarint(uint64); } return(true); } case WireFormat.WireType.Fixed32: { uint uint32 = 0; if (input.ReadFixed32(ref uint32)) { GetFieldBuilder(number).AddFixed32(uint32); } return(true); } case WireFormat.WireType.Fixed64: { ulong uint64 = 0; if (input.ReadFixed64(ref uint64)) { GetFieldBuilder(number).AddFixed64(uint64); } return(true); } case WireFormat.WireType.LengthDelimited: { ByteString bytes = null; if (input.ReadBytes(ref bytes)) { GetFieldBuilder(number).AddLengthDelimited(bytes); } return(true); } case WireFormat.WireType.StartGroup: { Builder subBuilder = CreateBuilder(); #pragma warning disable 0612 input.ReadUnknownGroup(number, subBuilder); #pragma warning restore 0612 GetFieldBuilder(number).AddGroup(subBuilder.Build()); return(true); } case WireFormat.WireType.EndGroup: return(false); default: throw InvalidProtocolBufferException.InvalidWireType(); } }
/// <summary> /// Like <see cref="MergeFrom(ICodedInputStream, ExtensionRegistry, IBuilder)" /> /// but parses a single field. /// </summary> /// <param name="input">The input to read the field from</param> /// <param name="extensionRegistry">Registry to use when an extension field is encountered</param> /// <param name="builder">Builder to merge field into, if it's a known field</param> /// <param name="tag">The tag, which should already have been read from the input</param> /// <returns>true unless the tag is an end-group tag</returns> internal bool MergeFieldFrom(ICodedInputStream input, ExtensionRegistry extensionRegistry, IBuilder builder, uint tag, string fieldName) { if (tag == 0 && fieldName != null) { FieldDescriptor fieldByName = builder.DescriptorForType.FindFieldByName(fieldName); if (fieldByName != null) { tag = WireFormat.MakeTag(fieldByName); } else { ExtensionInfo extension = extensionRegistry.FindByName(builder.DescriptorForType, fieldName); if (extension != null) { tag = WireFormat.MakeTag(extension.Descriptor); } } } MessageDescriptor type = builder.DescriptorForType; if (type.Options.MessageSetWireFormat && tag == WireFormat.MessageSetTag.ItemStart) { MergeMessageSetExtensionFromCodedStream(input, extensionRegistry, builder); return(true); } WireFormat.WireType wireType = WireFormat.GetTagWireType(tag); int fieldNumber = WireFormat.GetTagFieldNumber(tag); FieldDescriptor field; IMessageLite defaultFieldInstance = null; if (type.IsExtensionNumber(fieldNumber)) { ExtensionInfo extension = extensionRegistry[type, fieldNumber]; if (extension == null) { field = null; } else { field = extension.Descriptor; defaultFieldInstance = extension.DefaultInstance; } } else { field = type.FindFieldByNumber(fieldNumber); } // Unknown field or wrong wire type. Skip. if (field == null) { return(MergeFieldFrom(tag, input)); } if (wireType != WireFormat.GetWireType(field)) { WireFormat.WireType expectedType = WireFormat.GetWireType(field.FieldType); if (wireType == expectedType) { //Allowed as of 2.3, this is unpacked data for a packed array } else if (field.IsRepeated && wireType == WireFormat.WireType.LengthDelimited && (expectedType == WireFormat.WireType.Varint || expectedType == WireFormat.WireType.Fixed32 || expectedType == WireFormat.WireType.Fixed64)) { //Allowed as of 2.3, this is packed data for an unpacked array } else { return(MergeFieldFrom(tag, input)); } } switch (field.FieldType) { case FieldType.Group: case FieldType.Message: { IBuilderLite subBuilder = (defaultFieldInstance != null) ? defaultFieldInstance.WeakCreateBuilderForType() : builder.CreateBuilderForField(field); if (!field.IsRepeated) { subBuilder.WeakMergeFrom((IMessageLite)builder[field]); if (field.FieldType == FieldType.Group) { input.ReadGroup(field.FieldNumber, subBuilder, extensionRegistry); } else { input.ReadMessage(subBuilder, extensionRegistry); } builder[field] = subBuilder.WeakBuild(); } else { List <IMessageLite> list = new List <IMessageLite>(); if (field.FieldType == FieldType.Group) { input.ReadGroupArray(tag, fieldName, list, subBuilder.WeakDefaultInstanceForType, extensionRegistry); } else { input.ReadMessageArray(tag, fieldName, list, subBuilder.WeakDefaultInstanceForType, extensionRegistry); } foreach (IMessageLite m in list) { builder.WeakAddRepeatedField(field, m); } return(true); } break; } case FieldType.Enum: { if (!field.IsRepeated) { object unknown; IEnumLite value = null; if (input.ReadEnum(ref value, out unknown, field.EnumType)) { builder[field] = value; } else if (unknown is int) { MergeVarintField(fieldNumber, (ulong)(int)unknown); } } else { ICollection <object> unknown; List <IEnumLite> list = new List <IEnumLite>(); input.ReadEnumArray(tag, fieldName, list, out unknown, field.EnumType); foreach (IEnumLite en in list) { builder.WeakAddRepeatedField(field, en); } if (unknown != null) { foreach (object oval in unknown) { if (oval is int) { MergeVarintField(fieldNumber, (ulong)(int)oval); } } } } break; } default: { if (!field.IsRepeated) { object value = null; if (input.ReadPrimitiveField(field.FieldType, ref value)) { builder[field] = value; } } else { List <object> list = new List <object>(); input.ReadPrimitiveArray(field.FieldType, tag, fieldName, list); foreach (object oval in list) { builder.WeakAddRepeatedField(field, oval); } } break; } } return(true); }
/// <summary> /// Compute the number of bytes that would be needed to encode a tag. /// </summary> public static int ComputeTagSize(int fieldNumber) { return(ComputeRawVarint32Size(WireFormat.MakeTag(fieldNumber, 0))); }
/// <summary> /// Like <see cref="MergeFrom(CodedInputStream, ExtensionRegistry, IBuilder)" /> /// but parses a single field. /// </summary> /// <param name="input">The input to read the field from</param> /// <param name="extensionRegistry">Registry to use when an extension field is encountered</param> /// <param name="builder">Builder to merge field into, if it's a known field</param> /// <param name="tag">The tag, which should already have been read from the input</param> /// <returns>true unless the tag is an end-group tag</returns> internal bool MergeFieldFrom(CodedInputStream input, ExtensionRegistry extensionRegistry, IBuilder builder, uint tag) { MessageDescriptor type = builder.DescriptorForType; if (type.Options.MessageSetWireFormat && tag == WireFormat.MessageSetTag.ItemStart) { MergeMessageSetExtensionFromCodedStream(input, extensionRegistry, builder); return(true); } WireFormat.WireType wireType = WireFormat.GetTagWireType(tag); int fieldNumber = WireFormat.GetTagFieldNumber(tag); FieldDescriptor field; IMessage defaultFieldInstance = null; if (type.IsExtensionNumber(fieldNumber)) { ExtensionInfo extension = extensionRegistry[type, fieldNumber]; if (extension == null) { field = null; } else { field = extension.Descriptor; defaultFieldInstance = extension.DefaultInstance; } } else { field = type.FindFieldByNumber(fieldNumber); } // Unknown field or wrong wire type. Skip. if (field == null || wireType != WireFormat.GetWireType(field)) { return(MergeFieldFrom(tag, input)); } if (field.IsPacked) { int length = (int)input.ReadRawVarint32(); int limit = input.PushLimit(length); if (field.FieldType == FieldType.Enum) { while (!input.ReachedLimit) { int rawValue = input.ReadEnum(); object value = field.EnumType.FindValueByNumber(rawValue); if (value == null) { // If the number isn't recognized as a valid value for this // enum, drop it (don't even add it to unknownFields). return(true); } builder.WeakAddRepeatedField(field, value); } } else { while (!input.ReachedLimit) { Object value = input.ReadPrimitiveField(field.FieldType); builder.WeakAddRepeatedField(field, value); } } input.PopLimit(limit); } else { object value; switch (field.FieldType) { case FieldType.Group: case FieldType.Message: { IBuilder subBuilder; if (defaultFieldInstance != null) { subBuilder = defaultFieldInstance.WeakCreateBuilderForType(); } else { subBuilder = builder.CreateBuilderForField(field); } if (!field.IsRepeated) { subBuilder.WeakMergeFrom((IMessage)builder[field]); } if (field.FieldType == FieldType.Group) { input.ReadGroup(field.FieldNumber, subBuilder, extensionRegistry); } else { input.ReadMessage(subBuilder, extensionRegistry); } value = subBuilder.WeakBuild(); break; } case FieldType.Enum: { int rawValue = input.ReadEnum(); value = field.EnumType.FindValueByNumber(rawValue); // If the number isn't recognized as a valid value for this enum, // drop it. if (value == null) { MergeVarintField(fieldNumber, (ulong)rawValue); return(true); } break; } default: value = input.ReadPrimitiveField(field.FieldType); break; } if (field.IsRepeated) { builder.WeakAddRepeatedField(field, value); } else { builder[field] = value; } } return(true); }
protected override bool ParseUnknownField(ICodedInputStream input, ExtensionRegistry extensionRegistry, uint tag, string fieldName) { FieldSet extensions = MessageBeingBuilt.Extensions; WireFormat.WireType wireType = WireFormat.GetTagWireType(tag); int fieldNumber = WireFormat.GetTagFieldNumber(tag); IGeneratedExtensionLite extension = extensionRegistry[DefaultInstanceForType, fieldNumber]; if (extension == null) //unknown field { return(input.SkipField()); } IFieldDescriptorLite field = extension.Descriptor; // Unknown field or wrong wire type. Skip. if (field == null) { return(input.SkipField()); } WireFormat.WireType expectedType = field.IsPacked ? WireFormat.WireType.LengthDelimited : WireFormat.GetWireType(field.FieldType); if (wireType != expectedType) { expectedType = WireFormat.GetWireType(field.FieldType); if (wireType == expectedType) { //Allowed as of 2.3, this is unpacked data for a packed array } else if (field.IsRepeated && wireType == WireFormat.WireType.LengthDelimited && (expectedType == WireFormat.WireType.Varint || expectedType == WireFormat.WireType.Fixed32 || expectedType == WireFormat.WireType.Fixed64)) { //Allowed as of 2.3, this is packed data for an unpacked array } else { return(input.SkipField()); } } if (!field.IsRepeated && wireType != WireFormat.GetWireType(field.FieldType)) //invalid wire type { return(input.SkipField()); } switch (field.FieldType) { case FieldType.Group: case FieldType.Message: { if (!field.IsRepeated) { IMessageLite message = extensions[extension.Descriptor] as IMessageLite; IBuilderLite subBuilder = (message ?? extension.MessageDefaultInstance).WeakToBuilder(); if (field.FieldType == FieldType.Group) { input.ReadGroup(field.FieldNumber, subBuilder, extensionRegistry); } else { input.ReadMessage(subBuilder, extensionRegistry); } extensions[field] = subBuilder.WeakBuild(); } else { List <IMessageLite> list = new List <IMessageLite>(); if (field.FieldType == FieldType.Group) { input.ReadGroupArray(tag, fieldName, list, extension.MessageDefaultInstance, extensionRegistry); } else { input.ReadMessageArray(tag, fieldName, list, extension.MessageDefaultInstance, extensionRegistry); } foreach (IMessageLite m in list) { extensions.AddRepeatedField(field, m); } return(true); } break; } case FieldType.Enum: { if (!field.IsRepeated) { object unknown; IEnumLite value = null; if (input.ReadEnum(ref value, out unknown, field.EnumType)) { extensions[field] = value; } } else { ICollection <object> unknown; List <IEnumLite> list = new List <IEnumLite>(); input.ReadEnumArray(tag, fieldName, list, out unknown, field.EnumType); foreach (IEnumLite en in list) { extensions.AddRepeatedField(field, en); } } break; } default: { if (!field.IsRepeated) { object value = null; if (input.ReadPrimitiveField(field.FieldType, ref value)) { extensions[field] = value; } } else { List <object> list = new List <object>(); input.ReadPrimitiveArray(field.FieldType, tag, fieldName, list); foreach (object oval in list) { extensions.AddRepeatedField(field, oval); } } break; } } return(true); }
public void WriteTag(int fieldNumber, WireFormat.WireType type) { WriteRawVarint32(WireFormat.MakeTag(fieldNumber, type)); }
protected override bool ParseUnknownField(ICodedInputStream input, ExtensionRegistry extensionRegistry, uint tag, string fieldName) { TMessage messageBeingBuilt = this.MessageBeingBuilt; FieldSet extensions = messageBeingBuilt.Extensions; WireFormat.WireType tagWireType = WireFormat.GetTagWireType(tag); int tagFieldNumber = WireFormat.GetTagFieldNumber(tag); IGeneratedExtensionLite generatedExtensionLite = extensionRegistry[this.DefaultInstanceForType, tagFieldNumber]; if (generatedExtensionLite == null) { return(input.SkipField()); } IFieldDescriptorLite descriptor = generatedExtensionLite.Descriptor; if (descriptor == null) { return(input.SkipField()); } WireFormat.WireType wireType = descriptor.IsPacked ? WireFormat.WireType.LengthDelimited : WireFormat.GetWireType(descriptor.FieldType); if (tagWireType != wireType) { wireType = WireFormat.GetWireType(descriptor.FieldType); if (tagWireType != wireType && (!descriptor.IsRepeated || tagWireType != WireFormat.WireType.LengthDelimited || (wireType != WireFormat.WireType.Varint && wireType != WireFormat.WireType.Fixed32 && wireType != WireFormat.WireType.Fixed64))) { return(input.SkipField()); } } if (!descriptor.IsRepeated && tagWireType != WireFormat.GetWireType(descriptor.FieldType)) { return(input.SkipField()); } FieldType fieldType = descriptor.FieldType; switch (fieldType) { case FieldType.Group: case FieldType.Message: { if (descriptor.IsRepeated) { List <IMessageLite> list = new List <IMessageLite>(); if (descriptor.FieldType == FieldType.Group) { input.ReadGroupArray <IMessageLite>(tag, fieldName, list, generatedExtensionLite.MessageDefaultInstance, extensionRegistry); } else { input.ReadMessageArray <IMessageLite>(tag, fieldName, list, generatedExtensionLite.MessageDefaultInstance, extensionRegistry); } using (List <IMessageLite> .Enumerator enumerator = list.GetEnumerator()) { while (enumerator.MoveNext()) { IMessageLite current = enumerator.Current; extensions.AddRepeatedField(descriptor, current); } } return(true); } IMessageLite messageLite = extensions[generatedExtensionLite.Descriptor] as IMessageLite; IBuilderLite builderLite = (messageLite ?? generatedExtensionLite.MessageDefaultInstance).WeakToBuilder(); if (descriptor.FieldType == FieldType.Group) { input.ReadGroup(descriptor.FieldNumber, builderLite, extensionRegistry); } else { input.ReadMessage(builderLite, extensionRegistry); } extensions[descriptor] = builderLite.WeakBuild(); break; } default: if (fieldType == FieldType.Enum) { if (!descriptor.IsRepeated) { IEnumLite value = null; object obj; if (input.ReadEnum(ref value, out obj, descriptor.EnumType)) { extensions[descriptor] = value; break; } break; } else { List <IEnumLite> list2 = new List <IEnumLite>(); ICollection <object> collection; input.ReadEnumArray(tag, fieldName, list2, out collection, descriptor.EnumType); using (List <IEnumLite> .Enumerator enumerator2 = list2.GetEnumerator()) { while (enumerator2.MoveNext()) { IEnumLite current2 = enumerator2.Current; extensions.AddRepeatedField(descriptor, current2); } break; } } } if (!descriptor.IsRepeated) { object value2 = null; if (input.ReadPrimitiveField(descriptor.FieldType, ref value2)) { extensions[descriptor] = value2; } } else { List <object> list3 = new List <object>(); input.ReadPrimitiveArray(descriptor.FieldType, tag, fieldName, list3); using (List <object> .Enumerator enumerator3 = list3.GetEnumerator()) { while (enumerator3.MoveNext()) { object current3 = enumerator3.Current; extensions.AddRepeatedField(descriptor, current3); } } } break; } return(true); }
/// <summary> /// Encodes and writes a tag. /// </summary> public void WriteTag(int fieldNumber, WireFormat.WireType type) { WriteRawVarint32(WireFormat.MakeTag(fieldNumber, type)); }
protected override bool ParseUnknownField(CodedInputStream input, ExtensionRegistry extensionRegistry, uint tag) { FieldSet extensions = MessageBeingBuilt.Extensions; WireFormat.WireType wireType = WireFormat.GetTagWireType(tag); int fieldNumber = WireFormat.GetTagFieldNumber(tag); IGeneratedExtensionLite extension = extensionRegistry[DefaultInstanceForType, fieldNumber]; bool unknown = false; bool packed = false; if (extension == null) { unknown = true; // Unknown field. } else if (wireType == FieldMappingAttribute.WireTypeFromFieldType(extension.Descriptor.FieldType, false /* isPacked */)) { packed = false; // Normal, unpacked value. } else if (extension.Descriptor.IsRepeated && //?? just returns true ?? extension.Descriptor.type.isPackable() && wireType == FieldMappingAttribute.WireTypeFromFieldType(extension.Descriptor.FieldType, true /* isPacked */)) { packed = true; // Packed value. } else { unknown = true; // Wrong wire type. } if (unknown) // Unknown field or wrong wire type. Skip. { return(input.SkipField(tag)); } if (packed) { int length = (int)Math.Min(int.MaxValue, input.ReadRawVarint32()); int limit = input.PushLimit(length); if (extension.Descriptor.FieldType == FieldType.Enum) { while (!input.ReachedLimit) { int rawValue = input.ReadEnum(); Object value = extension.Descriptor.EnumType.FindValueByNumber(rawValue); if (value == null) { // If the number isn't recognized as a valid value for this // enum, drop it (don't even add it to unknownFields). return(true); } extensions.AddRepeatedField(extension.Descriptor, value); } } else { while (!input.ReachedLimit) { Object value = input.ReadPrimitiveField(extension.Descriptor.FieldType); extensions.AddRepeatedField(extension.Descriptor, value); } } input.PopLimit(limit); } else { Object value; switch (extension.Descriptor.MappedType) { case MappedType.Message: { IBuilderLite subBuilder = null; if (!extension.Descriptor.IsRepeated) { IMessageLite existingValue = extensions[extension.Descriptor] as IMessageLite; if (existingValue != null) { subBuilder = existingValue.WeakToBuilder(); } } if (subBuilder == null) { subBuilder = extension.MessageDefaultInstance.WeakCreateBuilderForType(); } if (extension.Descriptor.FieldType == FieldType.Group) { input.ReadGroup(extension.Number, subBuilder, extensionRegistry); } else { input.ReadMessage(subBuilder, extensionRegistry); } value = subBuilder.WeakBuild(); break; } case MappedType.Enum: int rawValue = input.ReadEnum(); value = extension.Descriptor.EnumType.FindValueByNumber(rawValue); // If the number isn't recognized as a valid value for this enum, // drop it. if (value == null) { return(true); } break; default: value = input.ReadPrimitiveField(extension.Descriptor.FieldType); break; } if (extension.Descriptor.IsRepeated) { extensions.AddRepeatedField(extension.Descriptor, value); } else { extensions[extension.Descriptor] = value; } } return(true); }