| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. |
| // http://code.google.com/p/protobuf/ |
| // |
| // Licensed 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. |
| |
| // 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_extension.h> |
| #include <google/protobuf/compiler/cpp/cpp_helpers.h> |
| #include <google/protobuf/stubs/strutil.h> |
| #include <google/protobuf/io/printer.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace cpp { |
| |
| ExtensionGenerator::ExtensionGenerator(const FieldDescriptor* descriptor, |
| const string& dllexport_decl) |
| : descriptor_(descriptor), |
| dllexport_decl_(dllexport_decl) { |
| // Construct type_traits_. |
| if (descriptor_->is_repeated()) { |
| type_traits_ = "Repeated"; |
| } |
| |
| switch (descriptor_->cpp_type()) { |
| case FieldDescriptor::CPPTYPE_ENUM: |
| type_traits_.append("EnumTypeTraits< "); |
| type_traits_.append(ClassName(descriptor_->enum_type(), true)); |
| type_traits_.append(" >"); |
| break; |
| case FieldDescriptor::CPPTYPE_STRING: |
| type_traits_.append("StringTypeTraits"); |
| break; |
| case FieldDescriptor::CPPTYPE_MESSAGE: |
| type_traits_.append("MessageTypeTraits< "); |
| type_traits_.append(ClassName(descriptor_->message_type(), true)); |
| type_traits_.append(" >"); |
| break; |
| default: |
| type_traits_.append("PrimitiveTypeTraits< "); |
| type_traits_.append(PrimitiveTypeName(descriptor_->cpp_type())); |
| type_traits_.append(" >"); |
| break; |
| } |
| } |
| |
| ExtensionGenerator::~ExtensionGenerator() {} |
| |
| void ExtensionGenerator::GenerateDeclaration(io::Printer* printer) { |
| map<string, string> vars; |
| vars["extendee" ] = ClassName(descriptor_->containing_type(), true); |
| vars["type_traits"] = type_traits_; |
| vars["name" ] = descriptor_->name(); |
| |
| // If this is a class member, it needs to be declared "static". Otherwise, |
| // it needs to be "extern". |
| vars["qualifier"] = |
| (descriptor_->extension_scope() == NULL) ? "extern" : "static"; |
| |
| if (!dllexport_decl_.empty()) { |
| vars["qualifier"] = dllexport_decl_ + " " + vars["qualifier"]; |
| } |
| |
| printer->Print(vars, |
| "$qualifier$ ::google::protobuf::internal::ExtensionIdentifier< $extendee$,\n" |
| " ::google::protobuf::internal::$type_traits$ > $name$;\n"); |
| } |
| |
| void ExtensionGenerator::GenerateDefinition(io::Printer* printer) { |
| map<string, string> vars; |
| vars["extendee" ] = ClassName(descriptor_->containing_type(), true); |
| vars["number" ] = SimpleItoa(descriptor_->number()); |
| vars["type_traits"] = type_traits_; |
| vars["name" ] = descriptor_->name(); |
| |
| // If this is a class member, it needs to be declared in its class scope. |
| vars["scope"] = (descriptor_->extension_scope() == NULL) ? "" : |
| ClassName(descriptor_->extension_scope(), false) + "::"; |
| |
| printer->Print(vars, |
| "::google::protobuf::internal::ExtensionIdentifier< $extendee$,\n" |
| " ::google::protobuf::internal::$type_traits$ > $scope$$name$($number$);\n"); |
| } |
| |
| } // namespace cpp |
| } // namespace compiler |
| } // namespace protobuf |
| |
| } // namespace google |