From 5e3b22e336217dd2b0aec771ce80b69caa07d571 Mon Sep 17 00:00:00 2001 From: Amos <48657826+Mauler125@users.noreply.github.com> Date: Wed, 2 Mar 2022 23:44:27 +0100 Subject: Add 'protobuf' library to project Library is configured to compile as 'lite'. --- .../protobuf/compiler/csharp/csharp_message.cc | 779 +++++++++++++++++++++ 1 file changed, 779 insertions(+) create mode 100644 NorthstarDedicatedTest/include/protobuf/compiler/csharp/csharp_message.cc (limited to 'NorthstarDedicatedTest/include/protobuf/compiler/csharp/csharp_message.cc') diff --git a/NorthstarDedicatedTest/include/protobuf/compiler/csharp/csharp_message.cc b/NorthstarDedicatedTest/include/protobuf/compiler/csharp/csharp_message.cc new file mode 100644 index 00000000..963b9c87 --- /dev/null +++ b/NorthstarDedicatedTest/include/protobuf/compiler/csharp/csharp_message.cc @@ -0,0 +1,779 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +namespace google { +namespace protobuf { +namespace compiler { +namespace csharp { + +bool CompareFieldNumbers(const FieldDescriptor* d1, const FieldDescriptor* d2) { + return d1->number() < d2->number(); +} + +MessageGenerator::MessageGenerator(const Descriptor* descriptor, + const Options* options) + : SourceGeneratorBase(options), + descriptor_(descriptor), + has_bit_field_count_(0), + end_tag_(GetGroupEndTag(descriptor)), + has_extension_ranges_(descriptor->extension_range_count() > 0) { + // fields by number + for (int i = 0; i < descriptor_->field_count(); i++) { + fields_by_number_.push_back(descriptor_->field(i)); + } + std::sort(fields_by_number_.begin(), fields_by_number_.end(), + CompareFieldNumbers); + + int presence_bit_count = 0; + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + if (RequiresPresenceBit(field)) { + presence_bit_count++; + if (has_bit_field_count_ == 0 || (presence_bit_count % 32) == 0) { + has_bit_field_count_++; + } + } + } +} + +MessageGenerator::~MessageGenerator() { +} + +std::string MessageGenerator::class_name() { + return descriptor_->name(); +} + +std::string MessageGenerator::full_class_name() { + return GetClassName(descriptor_); +} + +const std::vector& MessageGenerator::fields_by_number() { + return fields_by_number_; +} + +void MessageGenerator::AddDeprecatedFlag(io::Printer* printer) { + if (descriptor_->options().deprecated()) { + printer->Print("[global::System.ObsoleteAttribute]\n"); + } +} + +void MessageGenerator::AddSerializableAttribute(io::Printer* printer) { + if (this->options()->serializable) { + printer->Print("[global::System.SerializableAttribute]\n"); + } +} + +void MessageGenerator::Generate(io::Printer* printer) { + std::map vars; + vars["class_name"] = class_name(); + vars["access_level"] = class_access_level(); + + WriteMessageDocComment(printer, descriptor_); + AddDeprecatedFlag(printer); + AddSerializableAttribute(printer); + + printer->Print( + vars, + "$access_level$ sealed partial class $class_name$ : "); + + if (has_extension_ranges_) { + printer->Print(vars, "pb::IExtendableMessage<$class_name$>\n"); + } + else { + printer->Print(vars, "pb::IMessage<$class_name$>\n"); + } + printer->Print("#if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE\n"); + printer->Print(" , pb::IBufferMessage\n"); + printer->Print("#endif\n"); + printer->Print("{\n"); + printer->Indent(); + + // All static fields and properties + printer->Print( + vars, + "private static readonly pb::MessageParser<$class_name$> _parser = new pb::MessageParser<$class_name$>(() => new $class_name$());\n"); + + printer->Print( + "private pb::UnknownFieldSet _unknownFields;\n"); + + if (has_extension_ranges_) { + if (IsDescriptorProto(descriptor_->file())) { + printer->Print(vars, "internal pb::ExtensionSet<$class_name$> _extensions;\n"); // CustomOptions compatibility + } else { + printer->Print(vars, "private pb::ExtensionSet<$class_name$> _extensions;\n"); + } + + // a read-only property for fast + // retrieval of the set in IsInitialized + printer->Print(vars, + "private pb::ExtensionSet<$class_name$> _Extensions { get { " + "return _extensions; } }\n"); + } + + for (int i = 0; i < has_bit_field_count_; i++) { + // don't use arrays since all arrays are heap allocated, saving allocations + // use ints instead of bytes since bytes lack bitwise operators, saving casts + printer->Print("private int _hasBits$i$;\n", "i", StrCat(i)); + } + + WriteGeneratedCodeAttributes(printer); + + printer->Print( + vars, + "public static pb::MessageParser<$class_name$> Parser { get { return _parser; } }\n\n"); + + // Access the message descriptor via the relevant file descriptor or containing message descriptor. + if (!descriptor_->containing_type()) { + vars["descriptor_accessor"] = GetReflectionClassName(descriptor_->file()) + + ".Descriptor.MessageTypes[" + StrCat(descriptor_->index()) + "]"; + } else { + vars["descriptor_accessor"] = GetClassName(descriptor_->containing_type()) + + ".Descriptor.NestedTypes[" + StrCat(descriptor_->index()) + "]"; + } + + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public static pbr::MessageDescriptor Descriptor {\n" + " get { return $descriptor_accessor$; }\n" + "}\n" + "\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "pbr::MessageDescriptor pb::IMessage.Descriptor {\n" + " get { return Descriptor; }\n" + "}\n" + "\n"); + + // Parameterless constructor and partial OnConstruction method. + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public $class_name$() {\n" + " OnConstruction();\n" + "}\n\n" + "partial void OnConstruction();\n\n"); + + GenerateCloningCode(printer); + GenerateFreezingCode(printer); + + // Fields/properties + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* fieldDescriptor = descriptor_->field(i); + + // Rats: we lose the debug comment here :( + printer->Print( + "/// Field number for the \"$field_name$\" field.\n" + "public const int $field_constant_name$ = $index$;\n", + "field_name", fieldDescriptor->name(), + "field_constant_name", GetFieldConstantName(fieldDescriptor), + "index", StrCat(fieldDescriptor->number())); + std::unique_ptr generator( + CreateFieldGeneratorInternal(fieldDescriptor)); + generator->GenerateMembers(printer); + printer->Print("\n"); + } + + // oneof properties (for real oneofs, which come before synthetic ones) + for (int i = 0; i < descriptor_->real_oneof_decl_count(); i++) { + const OneofDescriptor* oneof = descriptor_->oneof_decl(i); + vars["name"] = UnderscoresToCamelCase(oneof->name(), false); + vars["property_name"] = UnderscoresToCamelCase(oneof->name(), true); + vars["original_name"] = oneof->name(); + printer->Print( + vars, + "private object $name$_;\n" + "/// Enum of possible cases for the \"$original_name$\" oneof.\n" + "public enum $property_name$OneofCase {\n"); + printer->Indent(); + printer->Print("None = 0,\n"); + for (int j = 0; j < oneof->field_count(); j++) { + const FieldDescriptor* field = oneof->field(j); + printer->Print("$field_property_name$ = $index$,\n", + "field_property_name", GetPropertyName(field), + "index", StrCat(field->number())); + } + printer->Outdent(); + printer->Print("}\n"); + // TODO: Should we put the oneof .proto comments here? + // It's unclear exactly where they should go. + printer->Print( + vars, + "private $property_name$OneofCase $name$Case_ = $property_name$OneofCase.None;\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public $property_name$OneofCase $property_name$Case {\n" + " get { return $name$Case_; }\n" + "}\n\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public void Clear$property_name$() {\n" + " $name$Case_ = $property_name$OneofCase.None;\n" + " $name$_ = null;\n" + "}\n\n"); + } + + // Standard methods + GenerateFrameworkMethods(printer); + GenerateMessageSerializationMethods(printer); + GenerateMergingMethods(printer); + + if (has_extension_ranges_) { + printer->Print( + vars, + "public TValue GetExtension(pb::Extension<$class_name$, " + "TValue> extension) {\n" + " return pb::ExtensionSet.Get(ref _extensions, extension);\n" + "}\n" + "public pbc::RepeatedField " + "GetExtension(pb::RepeatedExtension<$class_name$, TValue> " + "extension) {\n" + " return pb::ExtensionSet.Get(ref _extensions, extension);\n" + "}\n" + "public pbc::RepeatedField " + "GetOrInitializeExtension(pb::RepeatedExtension<$class_name$, " + "TValue> extension) {\n" + " return pb::ExtensionSet.GetOrInitialize(ref _extensions, " + "extension);\n" + "}\n" + "public void SetExtension(pb::Extension<$class_name$, TValue> " + "extension, TValue value) {\n" + " pb::ExtensionSet.Set(ref _extensions, extension, value);\n" + "}\n" + "public bool HasExtension(pb::Extension<$class_name$, TValue> " + "extension) {\n" + " return pb::ExtensionSet.Has(ref _extensions, extension);\n" + "}\n" + "public void ClearExtension(pb::Extension<$class_name$, " + "TValue> extension) {\n" + " pb::ExtensionSet.Clear(ref _extensions, extension);\n" + "}\n" + "public void " + "ClearExtension(pb::RepeatedExtension<$class_name$, TValue> " + "extension) {\n" + " pb::ExtensionSet.Clear(ref _extensions, extension);\n" + "}\n\n"); + } + + // Nested messages and enums + if (HasNestedGeneratedTypes()) { + printer->Print( + vars, + "#region Nested types\n" + "/// Container for nested types declared in the $class_name$ message type.\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print("public static partial class Types {\n"); + printer->Indent(); + for (int i = 0; i < descriptor_->enum_type_count(); i++) { + EnumGenerator enumGenerator(descriptor_->enum_type(i), this->options()); + enumGenerator.Generate(printer); + } + for (int i = 0; i < descriptor_->nested_type_count(); i++) { + // Don't generate nested types for maps... + if (!IsMapEntryMessage(descriptor_->nested_type(i))) { + MessageGenerator messageGenerator( + descriptor_->nested_type(i), this->options()); + messageGenerator.Generate(printer); + } + } + printer->Outdent(); + printer->Print("}\n" + "#endregion\n" + "\n"); + } + + if (descriptor_->extension_count() > 0) { + printer->Print( + vars, + "#region Extensions\n" + "/// Container for extensions for other messages declared in the $class_name$ message type.\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print("public static partial class Extensions {\n"); + printer->Indent(); + for (int i = 0; i < descriptor_->extension_count(); i++) { + std::unique_ptr generator( + CreateFieldGeneratorInternal(descriptor_->extension(i))); + generator->GenerateExtensionCode(printer); + } + printer->Outdent(); + printer->Print( + "}\n" + "#endregion\n" + "\n"); + } + + printer->Outdent(); + printer->Print("}\n"); + printer->Print("\n"); +} + +// Helper to work out whether we need to generate a class to hold nested types/enums. +// Only tricky because we don't want to generate map entry types. +bool MessageGenerator::HasNestedGeneratedTypes() +{ + if (descriptor_->enum_type_count() > 0) { + return true; + } + for (int i = 0; i < descriptor_->nested_type_count(); i++) { + if (!IsMapEntryMessage(descriptor_->nested_type(i))) { + return true; + } + } + return false; +} + +void MessageGenerator::GenerateCloningCode(io::Printer* printer) { + std::map vars; + WriteGeneratedCodeAttributes(printer); + vars["class_name"] = class_name(); + printer->Print( + vars, + "public $class_name$($class_name$ other) : this() {\n"); + printer->Indent(); + for (int i = 0; i < has_bit_field_count_; i++) { + printer->Print("_hasBits$i$ = other._hasBits$i$;\n", "i", StrCat(i)); + } + // Clone non-oneof fields first (treating optional proto3 fields as non-oneof) + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + if (field->real_containing_oneof()) { + continue; + } + std::unique_ptr generator(CreateFieldGeneratorInternal(field)); + generator->GenerateCloningCode(printer); + } + // Clone just the right field for each real oneof + for (int i = 0; i < descriptor_->real_oneof_decl_count(); ++i) { + const OneofDescriptor* oneof = descriptor_->oneof_decl(i); + vars["name"] = UnderscoresToCamelCase(oneof->name(), false); + vars["property_name"] = UnderscoresToCamelCase(oneof->name(), true); + printer->Print(vars, "switch (other.$property_name$Case) {\n"); + printer->Indent(); + for (int j = 0; j < oneof->field_count(); j++) { + const FieldDescriptor* field = oneof->field(j); + std::unique_ptr generator(CreateFieldGeneratorInternal(field)); + vars["field_property_name"] = GetPropertyName(field); + printer->Print( + vars, + "case $property_name$OneofCase.$field_property_name$:\n"); + printer->Indent(); + generator->GenerateCloningCode(printer); + printer->Print("break;\n"); + printer->Outdent(); + } + printer->Outdent(); + printer->Print("}\n\n"); + } + // Clone unknown fields + printer->Print( + "_unknownFields = pb::UnknownFieldSet.Clone(other._unknownFields);\n"); + if (has_extension_ranges_) { + printer->Print( + "_extensions = pb::ExtensionSet.Clone(other._extensions);\n"); + } + + printer->Outdent(); + printer->Print("}\n\n"); + + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public $class_name$ Clone() {\n" + " return new $class_name$(this);\n" + "}\n\n"); +} + +void MessageGenerator::GenerateFreezingCode(io::Printer* printer) { +} + +void MessageGenerator::GenerateFrameworkMethods(io::Printer* printer) { + std::map vars; + vars["class_name"] = class_name(); + + // Equality + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public override bool Equals(object other) {\n" + " return Equals(other as $class_name$);\n" + "}\n\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public bool Equals($class_name$ other) {\n" + " if (ReferenceEquals(other, null)) {\n" + " return false;\n" + " }\n" + " if (ReferenceEquals(other, this)) {\n" + " return true;\n" + " }\n"); + printer->Indent(); + for (int i = 0; i < descriptor_->field_count(); i++) { + std::unique_ptr generator( + CreateFieldGeneratorInternal(descriptor_->field(i))); + generator->WriteEquals(printer); + } + for (int i = 0; i < descriptor_->real_oneof_decl_count(); i++) { + printer->Print("if ($property_name$Case != other.$property_name$Case) return false;\n", + "property_name", UnderscoresToCamelCase(descriptor_->oneof_decl(i)->name(), true)); + } + if (has_extension_ranges_) { + printer->Print( + "if (!Equals(_extensions, other._extensions)) {\n" + " return false;\n" + "}\n"); + } + printer->Outdent(); + printer->Print( + " return Equals(_unknownFields, other._unknownFields);\n" + "}\n\n"); + + // GetHashCode + // Start with a non-zero value to easily distinguish between null and "empty" messages. + WriteGeneratedCodeAttributes(printer); + printer->Print( + "public override int GetHashCode() {\n" + " int hash = 1;\n"); + printer->Indent(); + for (int i = 0; i < descriptor_->field_count(); i++) { + std::unique_ptr generator( + CreateFieldGeneratorInternal(descriptor_->field(i))); + generator->WriteHash(printer); + } + for (int i = 0; i < descriptor_->real_oneof_decl_count(); i++) { + printer->Print("hash ^= (int) $name$Case_;\n", + "name", UnderscoresToCamelCase(descriptor_->oneof_decl(i)->name(), false)); + } + if (has_extension_ranges_) { + printer->Print( + "if (_extensions != null) {\n" + " hash ^= _extensions.GetHashCode();\n" + "}\n"); + } + printer->Print( + "if (_unknownFields != null) {\n" + " hash ^= _unknownFields.GetHashCode();\n" + "}\n" + "return hash;\n"); + printer->Outdent(); + printer->Print("}\n\n"); + + WriteGeneratedCodeAttributes(printer); + printer->Print( + "public override string ToString() {\n" + " return pb::JsonFormatter.ToDiagnosticString(this);\n" + "}\n\n"); +} + +void MessageGenerator::GenerateMessageSerializationMethods(io::Printer* printer) { + WriteGeneratedCodeAttributes(printer); + printer->Print( + "public void WriteTo(pb::CodedOutputStream output) {\n"); + printer->Print("#if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE\n"); + printer->Indent(); + printer->Print("output.WriteRawMessage(this);\n"); + printer->Outdent(); + printer->Print("#else\n"); + printer->Indent(); + GenerateWriteToBody(printer, false); + printer->Outdent(); + printer->Print("#endif\n"); + printer->Print("}\n\n"); + + printer->Print("#if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print("void pb::IBufferMessage.InternalWriteTo(ref pb::WriteContext output) {\n"); + printer->Indent(); + GenerateWriteToBody(printer, true); + printer->Outdent(); + printer->Print("}\n"); + printer->Print("#endif\n\n"); + + WriteGeneratedCodeAttributes(printer); + printer->Print( + "public int CalculateSize() {\n"); + printer->Indent(); + printer->Print("int size = 0;\n"); + for (int i = 0; i < descriptor_->field_count(); i++) { + std::unique_ptr generator( + CreateFieldGeneratorInternal(descriptor_->field(i))); + generator->GenerateSerializedSizeCode(printer); + } + + if (has_extension_ranges_) { + printer->Print( + "if (_extensions != null) {\n" + " size += _extensions.CalculateSize();\n" + "}\n"); + } + + printer->Print( + "if (_unknownFields != null) {\n" + " size += _unknownFields.CalculateSize();\n" + "}\n"); + + printer->Print("return size;\n"); + printer->Outdent(); + printer->Print("}\n\n"); +} + +void MessageGenerator::GenerateWriteToBody(io::Printer* printer, bool use_write_context) { + // Serialize all the fields + for (int i = 0; i < fields_by_number().size(); i++) { + std::unique_ptr generator( + CreateFieldGeneratorInternal(fields_by_number()[i])); + generator->GenerateSerializationCode(printer, use_write_context); + } + + if (has_extension_ranges_) { + // Serialize extensions + printer->Print( + use_write_context + ? "if (_extensions != null) {\n" + " _extensions.WriteTo(ref output);\n" + "}\n" + : "if (_extensions != null) {\n" + " _extensions.WriteTo(output);\n" + "}\n"); + } + + // Serialize unknown fields + printer->Print( + use_write_context + ? "if (_unknownFields != null) {\n" + " _unknownFields.WriteTo(ref output);\n" + "}\n" + : "if (_unknownFields != null) {\n" + " _unknownFields.WriteTo(output);\n" + "}\n"); + + // TODO(jonskeet): Memoize size of frozen messages? +} + +void MessageGenerator::GenerateMergingMethods(io::Printer* printer) { + // Note: These are separate from GenerateMessageSerializationMethods() + // because they need to be generated even for messages that are optimized + // for code size. + std::map vars; + vars["class_name"] = class_name(); + + WriteGeneratedCodeAttributes(printer); + printer->Print( + vars, + "public void MergeFrom($class_name$ other) {\n"); + printer->Indent(); + printer->Print( + "if (other == null) {\n" + " return;\n" + "}\n"); + // Merge non-oneof fields, treating optional proto3 fields as normal fields + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + if (field->real_containing_oneof()) { + continue; + } + std::unique_ptr generator(CreateFieldGeneratorInternal(field)); + generator->GenerateMergingCode(printer); + } + // Merge oneof fields (for non-synthetic oneofs) + for (int i = 0; i < descriptor_->real_oneof_decl_count(); ++i) { + const OneofDescriptor* oneof = descriptor_->oneof_decl(i); + vars["name"] = UnderscoresToCamelCase(oneof->name(), false); + vars["property_name"] = UnderscoresToCamelCase(oneof->name(), true); + printer->Print(vars, "switch (other.$property_name$Case) {\n"); + printer->Indent(); + for (int j = 0; j < oneof->field_count(); j++) { + const FieldDescriptor* field = oneof->field(j); + vars["field_property_name"] = GetPropertyName(field); + printer->Print( + vars, + "case $property_name$OneofCase.$field_property_name$:\n"); + printer->Indent(); + std::unique_ptr generator(CreateFieldGeneratorInternal(field)); + generator->GenerateMergingCode(printer); + printer->Print("break;\n"); + printer->Outdent(); + } + printer->Outdent(); + printer->Print("}\n\n"); + } + // Merge extensions + if (has_extension_ranges_) { + printer->Print("pb::ExtensionSet.MergeFrom(ref _extensions, other._extensions);\n"); + } + + // Merge unknown fields. + printer->Print( + "_unknownFields = pb::UnknownFieldSet.MergeFrom(_unknownFields, other._unknownFields);\n"); + + printer->Outdent(); + printer->Print("}\n\n"); + + WriteGeneratedCodeAttributes(printer); + printer->Print("public void MergeFrom(pb::CodedInputStream input) {\n"); + printer->Print("#if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE\n"); + printer->Indent(); + printer->Print("input.ReadRawMessage(this);\n"); + printer->Outdent(); + printer->Print("#else\n"); + printer->Indent(); + GenerateMainParseLoop(printer, false); + printer->Outdent(); + printer->Print("#endif\n"); + printer->Print("}\n\n"); + + printer->Print("#if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE\n"); + WriteGeneratedCodeAttributes(printer); + printer->Print("void pb::IBufferMessage.InternalMergeFrom(ref pb::ParseContext input) {\n"); + printer->Indent(); + GenerateMainParseLoop(printer, true); + printer->Outdent(); + printer->Print("}\n"); // method + printer->Print("#endif\n\n"); + +} + +void MessageGenerator::GenerateMainParseLoop(io::Printer* printer, bool use_parse_context) { + std::map vars; + vars["maybe_ref_input"] = use_parse_context ? "ref input" : "input"; + + printer->Print( + "uint tag;\n" + "while ((tag = input.ReadTag()) != 0) {\n" + " switch(tag) {\n"); + printer->Indent(); + printer->Indent(); + if (end_tag_ != 0) { + printer->Print( + "case $end_tag$:\n" + " return;\n", + "end_tag", StrCat(end_tag_)); + } + if (has_extension_ranges_) { + printer->Print(vars, + "default:\n" + " if (!pb::ExtensionSet.TryMergeFieldFrom(ref _extensions, $maybe_ref_input$)) {\n" + " _unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, $maybe_ref_input$);\n" + " }\n" + " break;\n"); + } else { + printer->Print(vars, + "default:\n" + " _unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, $maybe_ref_input$);\n" + " break;\n"); + } + for (int i = 0; i < fields_by_number().size(); i++) { + const FieldDescriptor* field = fields_by_number()[i]; + internal::WireFormatLite::WireType wt = + internal::WireFormat::WireTypeForFieldType(field->type()); + uint32 tag = internal::WireFormatLite::MakeTag(field->number(), wt); + // Handle both packed and unpacked repeated fields with the same Read*Array call; + // the two generated cases are the packed and unpacked tags. + // TODO(jonskeet): Check that is_packable is equivalent to + // is_repeated && wt in { VARINT, FIXED32, FIXED64 }. + // It looks like it is... + if (field->is_packable()) { + printer->Print( + "case $packed_tag$:\n", + "packed_tag", + StrCat( + internal::WireFormatLite::MakeTag( + field->number(), + internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED))); + } + + printer->Print("case $tag$: {\n", "tag", StrCat(tag)); + printer->Indent(); + std::unique_ptr generator( + CreateFieldGeneratorInternal(field)); + generator->GenerateParsingCode(printer, use_parse_context); + printer->Print("break;\n"); + printer->Outdent(); + printer->Print("}\n"); + } + printer->Outdent(); + printer->Print("}\n"); // switch + printer->Outdent(); + printer->Print("}\n"); // while +} + +// it's a waste of space to track presence for all values, so we only track them if they're not nullable +int MessageGenerator::GetPresenceIndex(const FieldDescriptor* descriptor) { + if (!RequiresPresenceBit(descriptor)) { + return -1; + } + + int index = 0; + for (int i = 0; i < fields_by_number().size(); i++) { + const FieldDescriptor* field = fields_by_number()[i]; + if (field == descriptor) { + return index; + } + if (RequiresPresenceBit(field)) { + index++; + } + } + GOOGLE_LOG(DFATAL)<< "Could not find presence index for field " << descriptor->name(); + return -1; +} + +FieldGeneratorBase* MessageGenerator::CreateFieldGeneratorInternal( + const FieldDescriptor* descriptor) { + return CreateFieldGenerator(descriptor, GetPresenceIndex(descriptor), this->options()); +} + +} // namespace csharp +} // namespace compiler +} // namespace protobuf +} // namespace google -- cgit v1.2.3