| // 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> |
| #ifndef _SHARED_PTR_H |
| #include <google/protobuf/stubs/shared_ptr.h> |
| #endif |
| |
| #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/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/wire_format.h> |
| #include <google/protobuf/io/printer.h> |
| #include <google/protobuf/stubs/logging.h> |
| #include <google/protobuf/stubs/common.h> |
| #include <google/protobuf/stubs/strutil.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace cpp { |
| |
| using internal::WireFormat; |
| |
| void SetCommonFieldVariables(const FieldDescriptor* descriptor, |
| map<string, string>* variables, |
| const Options& options) { |
| (*variables)["name"] = FieldName(descriptor); |
| (*variables)["index"] = SimpleItoa(descriptor->index()); |
| (*variables)["number"] = SimpleItoa(descriptor->number()); |
| (*variables)["classname"] = ClassName(FieldScope(descriptor), false); |
| (*variables)["declared_type"] = DeclaredTypeMethodName(descriptor->type()); |
| |
| // non_null_ptr_to_name is usable only if has_$name$ is true. It yields a |
| // pointer that will not be NULL. Subclasses of FieldGenerator may set |
| // (*variables)["non_null_ptr_to_name"] differently. |
| (*variables)["non_null_ptr_to_name"] = |
| StrCat("&this->", FieldName(descriptor), "()"); |
| |
| (*variables)["tag_size"] = SimpleItoa( |
| WireFormat::TagSize(descriptor->number(), descriptor->type())); |
| (*variables)["deprecation"] = descriptor->options().deprecated() |
| ? " PROTOBUF_DEPRECATED" : ""; |
| (*variables)["deprecated_attr"] = descriptor->options().deprecated() |
| ? "PROTOBUF_DEPRECATED_ATTR " : ""; |
| |
| (*variables)["cppget"] = "Get"; |
| |
| if (HasFieldPresence(descriptor->file())) { |
| (*variables)["set_hasbit"] = |
| "set_has_" + FieldName(descriptor) + "();"; |
| (*variables)["clear_hasbit"] = |
| "clear_has_" + FieldName(descriptor) + "();"; |
| } else { |
| (*variables)["set_hasbit"] = ""; |
| (*variables)["clear_hasbit"] = ""; |
| } |
| |
| // By default, empty string, so that generic code used for both oneofs and |
| // singular fields can be written. |
| (*variables)["oneof_prefix"] = ""; |
| } |
| |
| void SetCommonOneofFieldVariables(const FieldDescriptor* descriptor, |
| map<string, string>* variables) { |
| const string prefix = descriptor->containing_oneof()->name() + "_."; |
| (*variables)["oneof_prefix"] = prefix; |
| (*variables)["oneof_name"] = descriptor->containing_oneof()->name(); |
| (*variables)["non_null_ptr_to_name"] = |
| 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) |
| : descriptor_(descriptor), |
| options_(options), |
| field_generators_( |
| new google::protobuf::scoped_ptr<FieldGenerator>[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)); |
| } |
| } |
| |
| FieldGenerator* FieldGeneratorMap::MakeGenerator(const FieldDescriptor* field, |
| const Options& options) { |
| 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); |
| } |
| case FieldDescriptor::CPPTYPE_STRING: |
| switch (field->options().ctype()) { |
| default: // RepeatedStringFieldGenerator handles unknown ctypes. |
| case FieldOptions::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); |
| case FieldDescriptor::CPPTYPE_STRING: |
| switch (field->options().ctype()) { |
| default: // StringOneofFieldGenerator handles unknown ctypes. |
| case FieldOptions::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); |
| case FieldDescriptor::CPPTYPE_STRING: |
| switch (field->options().ctype()) { |
| default: // StringFieldGenerator handles unknown ctypes. |
| case FieldOptions::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 |