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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// http://code.google.com/p/protobuf/
//
// 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_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
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