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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: bduff@google.com (Brian Duff)
#include <google/protobuf/compiler/javanano/javanano_extension.h>
#include <google/protobuf/compiler/javanano/javanano_helpers.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/wire_format.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace javanano {
using internal::WireFormat;
using internal::WireFormatLite;
namespace {
const char* GetTypeConstantName(const FieldDescriptor::Type type) {
switch (type) {
case FieldDescriptor::TYPE_INT32 : return "TYPE_INT32" ;
case FieldDescriptor::TYPE_UINT32 : return "TYPE_UINT32" ;
case FieldDescriptor::TYPE_SINT32 : return "TYPE_SINT32" ;
case FieldDescriptor::TYPE_FIXED32 : return "TYPE_FIXED32" ;
case FieldDescriptor::TYPE_SFIXED32: return "TYPE_SFIXED32";
case FieldDescriptor::TYPE_INT64 : return "TYPE_INT64" ;
case FieldDescriptor::TYPE_UINT64 : return "TYPE_UINT64" ;
case FieldDescriptor::TYPE_SINT64 : return "TYPE_SINT64" ;
case FieldDescriptor::TYPE_FIXED64 : return "TYPE_FIXED64" ;
case FieldDescriptor::TYPE_SFIXED64: return "TYPE_SFIXED64";
case FieldDescriptor::TYPE_FLOAT : return "TYPE_FLOAT" ;
case FieldDescriptor::TYPE_DOUBLE : return "TYPE_DOUBLE" ;
case FieldDescriptor::TYPE_BOOL : return "TYPE_BOOL" ;
case FieldDescriptor::TYPE_STRING : return "TYPE_STRING" ;
case FieldDescriptor::TYPE_BYTES : return "TYPE_BYTES" ;
case FieldDescriptor::TYPE_ENUM : return "TYPE_ENUM" ;
case FieldDescriptor::TYPE_GROUP : return "TYPE_GROUP" ;
case FieldDescriptor::TYPE_MESSAGE : return "TYPE_MESSAGE" ;
// No default because we want the compiler to complain if any new
// types are added.
}
GOOGLE_LOG(FATAL) << "Can't get here.";
return NULL;
}
} // namespace
void SetVariables(const FieldDescriptor* descriptor, const Params params,
map<string, string>* variables) {
(*variables)["extends"] = ClassName(params, descriptor->containing_type());
(*variables)["name"] = RenameJavaKeywords(UnderscoresToCamelCase(descriptor));
bool repeated = descriptor->is_repeated();
(*variables)["repeated"] = repeated ? "Repeated" : "";
(*variables)["type"] = GetTypeConstantName(descriptor->type());
JavaType java_type = GetJavaType(descriptor->type());
string tag = SimpleItoa(WireFormat::MakeTag(descriptor));
if (java_type == JAVATYPE_MESSAGE) {
(*variables)["ext_type"] = "MessageTyped";
string message_type = ClassName(params, descriptor->message_type());
if (repeated) {
message_type += "[]";
}
(*variables)["class"] = message_type;
// For message typed extensions, tags_params contains a single tag
// for both singular and repeated cases.
(*variables)["tag_params"] = tag;
} else {
(*variables)["ext_type"] = "PrimitiveTyped";
if (!repeated) {
(*variables)["class"] = BoxedPrimitiveTypeName(java_type);
(*variables)["tag_params"] = tag;
} else {
(*variables)["class"] = PrimitiveTypeName(java_type) + "[]";
if (!descriptor->is_packable()) {
// Non-packable: nonPackedTag == tag, packedTag == 0
(*variables)["tag_params"] = tag + ", " + tag + ", 0";
} else if (descriptor->options().packed()) {
// Packable and packed: tag == packedTag
string non_packed_tag = SimpleItoa(WireFormatLite::MakeTag(
descriptor->number(),
WireFormat::WireTypeForFieldType(descriptor->type())));
(*variables)["tag_params"] = tag + ", " + non_packed_tag + ", " + tag;
} else {
// Packable and not packed: tag == nonPackedTag
string packed_tag = SimpleItoa(WireFormatLite::MakeTag(
descriptor->number(), WireFormatLite::WIRETYPE_LENGTH_DELIMITED));
(*variables)["tag_params"] = tag + ", " + tag + ", " + packed_tag;
}
}
}
}
ExtensionGenerator::
ExtensionGenerator(const FieldDescriptor* descriptor, const Params& params)
: params_(params), descriptor_(descriptor) {
SetVariables(descriptor, params, &variables_);
}
ExtensionGenerator::~ExtensionGenerator() {}
void ExtensionGenerator::Generate(io::Printer* printer) const {
printer->Print("\n");
PrintFieldComment(printer, descriptor_);
printer->Print(variables_,
"public static final com.google.protobuf.nano.Extension<\n"
" $extends$,\n"
" $class$> $name$ =\n"
" com.google.protobuf.nano.Extension.create$repeated$$ext_type$(\n"
" com.google.protobuf.nano.Extension.$type$,\n"
" $class$.class,\n"
" $tag_params$);\n");
}
} // namespace javanano
} // namespace compiler
} // namespace protobuf
} // namespace google
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