| // 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. |
| |
| // Author: kenton@google.com (Kenton Varda) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| |
| #include <google/protobuf/compiler/cpp/cpp_field.h> |
| #include <memory> |
| |
| #include <google/protobuf/compiler/cpp/cpp_helpers.h> |
| #include <google/protobuf/compiler/cpp/cpp_primitive_field.h> |
| #include <google/protobuf/compiler/cpp/cpp_string_field.h> |
| |
| #include <google/protobuf/stubs/logging.h> |
| #include <google/protobuf/stubs/common.h> |
| #include <google/protobuf/compiler/cpp/cpp_enum_field.h> |
| #include <google/protobuf/compiler/cpp/cpp_map_field.h> |
| #include <google/protobuf/compiler/cpp/cpp_message_field.h> |
| #include <google/protobuf/descriptor.pb.h> |
| #include <google/protobuf/io/printer.h> |
| #include <google/protobuf/wire_format.h> |
| #include <google/protobuf/stubs/strutil.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace cpp { |
| |
| using internal::WireFormat; |
| |
| void SetCommonFieldVariables(const FieldDescriptor* descriptor, |
| std::map<std::string, std::string>* variables, |
| const Options& options) { |
| SetCommonVars(options, variables); |
| (*variables)["ns"] = Namespace(descriptor, options); |
| (*variables)["name"] = FieldName(descriptor); |
| (*variables)["index"] = StrCat(descriptor->index()); |
| (*variables)["number"] = StrCat(descriptor->number()); |
| (*variables)["classname"] = ClassName(FieldScope(descriptor), false); |
| (*variables)["declared_type"] = DeclaredTypeMethodName(descriptor->type()); |
| (*variables)["field_member"] = FieldName(descriptor) + "_"; |
| |
| (*variables)["tag_size"] = StrCat( |
| WireFormat::TagSize(descriptor->number(), descriptor->type())); |
| (*variables)["deprecated_attr"] = |
| DeprecatedAttribute(options, descriptor->options().deprecated()); |
| |
| (*variables)["set_hasbit"] = ""; |
| (*variables)["clear_hasbit"] = ""; |
| if (HasFieldPresence(descriptor->file())) { |
| (*variables)["set_hasbit_io"] = |
| "HasBitSetters::set_has_" + FieldName(descriptor) + "(&_has_bits_);"; |
| } else { |
| (*variables)["set_hasbit_io"] = ""; |
| } |
| |
| // These variables are placeholders to pick out the beginning and ends of |
| // identifiers for annotations (when doing so with existing variables would |
| // be ambiguous or impossible). They should never be set to anything but the |
| // empty string. |
| (*variables)["{"] = ""; |
| (*variables)["}"] = ""; |
| } |
| |
| void FieldGenerator::SetHasBitIndex(int32 has_bit_index) { |
| if (!HasFieldPresence(descriptor_->file()) || has_bit_index == -1) { |
| return; |
| } |
| variables_["set_hasbit"] = StrCat( |
| "_has_bits_[", has_bit_index / 32, "] |= 0x", |
| strings::Hex(1u << (has_bit_index % 32), strings::ZERO_PAD_8), "u;"); |
| variables_["clear_hasbit"] = StrCat( |
| "_has_bits_[", has_bit_index / 32, "] &= ~0x", |
| strings::Hex(1u << (has_bit_index % 32), strings::ZERO_PAD_8), "u;"); |
| } |
| |
| void SetCommonOneofFieldVariables( |
| const FieldDescriptor* descriptor, |
| std::map<std::string, std::string>* variables) { |
| const std::string prefix = descriptor->containing_oneof()->name() + "_."; |
| (*variables)["oneof_name"] = descriptor->containing_oneof()->name(); |
| (*variables)["field_member"] = |
| StrCat(prefix, (*variables)["name"], "_"); |
| } |
| |
| FieldGenerator::~FieldGenerator() {} |
| |
| void FieldGenerator::GenerateMergeFromCodedStreamWithPacking( |
| io::Printer* printer) const { |
| // Reaching here indicates a bug. Cases are: |
| // - This FieldGenerator should support packing, but this method should be |
| // overridden. |
| // - This FieldGenerator doesn't support packing, and this method should |
| // never have been called. |
| GOOGLE_LOG(FATAL) << "GenerateMergeFromCodedStreamWithPacking() " |
| << "called on field generator that does not support packing."; |
| } |
| |
| FieldGeneratorMap::FieldGeneratorMap(const Descriptor* descriptor, |
| const Options& options, |
| MessageSCCAnalyzer* scc_analyzer) |
| : descriptor_(descriptor), |
| options_(options), |
| field_generators_(descriptor->field_count()) { |
| // Construct all the FieldGenerators. |
| for (int i = 0; i < descriptor->field_count(); i++) { |
| field_generators_[i].reset( |
| MakeGenerator(descriptor->field(i), options, scc_analyzer)); |
| } |
| } |
| |
| FieldGenerator* FieldGeneratorMap::MakeGoogleInternalGenerator( |
| const FieldDescriptor* field, const Options& options, |
| MessageSCCAnalyzer* scc_analyzer) { |
| |
| return nullptr; |
| } |
| |
| FieldGenerator* FieldGeneratorMap::MakeGenerator( |
| const FieldDescriptor* field, const Options& options, |
| MessageSCCAnalyzer* scc_analyzer) { |
| FieldGenerator* generator = |
| MakeGoogleInternalGenerator(field, options, scc_analyzer); |
| if (generator) { |
| return generator; |
| } |
| |
| if (field->is_repeated()) { |
| switch (field->cpp_type()) { |
| case FieldDescriptor::CPPTYPE_MESSAGE: |
| if (field->is_map()) { |
| return new MapFieldGenerator(field, options); |
| } else { |
| return new RepeatedMessageFieldGenerator(field, options, |
| scc_analyzer); |
| } |
| case FieldDescriptor::CPPTYPE_STRING: |
| return new RepeatedStringFieldGenerator(field, options); |
| case FieldDescriptor::CPPTYPE_ENUM: |
| return new RepeatedEnumFieldGenerator(field, options); |
| default: |
| return new RepeatedPrimitiveFieldGenerator(field, options); |
| } |
| } else if (field->containing_oneof()) { |
| switch (field->cpp_type()) { |
| case FieldDescriptor::CPPTYPE_MESSAGE: |
| return new MessageOneofFieldGenerator(field, options, scc_analyzer); |
| case FieldDescriptor::CPPTYPE_STRING: |
| return new StringOneofFieldGenerator(field, options); |
| case FieldDescriptor::CPPTYPE_ENUM: |
| return new EnumOneofFieldGenerator(field, options); |
| default: |
| return new PrimitiveOneofFieldGenerator(field, options); |
| } |
| } else { |
| switch (field->cpp_type()) { |
| case FieldDescriptor::CPPTYPE_MESSAGE: |
| return new MessageFieldGenerator(field, options, scc_analyzer); |
| case FieldDescriptor::CPPTYPE_STRING: |
| return new StringFieldGenerator(field, options); |
| case FieldDescriptor::CPPTYPE_ENUM: |
| return new EnumFieldGenerator(field, options); |
| default: |
| return new PrimitiveFieldGenerator(field, options); |
| } |
| } |
| } |
| |
| FieldGeneratorMap::~FieldGeneratorMap() {} |
| |
| const FieldGenerator& FieldGeneratorMap::get( |
| const FieldDescriptor* field) const { |
| GOOGLE_CHECK_EQ(field->containing_type(), descriptor_); |
| return *field_generators_[field->index()]; |
| } |
| |
| } // namespace cpp |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |