blob: e7fea3f3f33ee90e3fa63d17f0d4ab22bca3cd86 [file] [log] [blame]
/*
* Copyright (C) 2015, The Android Open Source Project
*
* 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.
*/
#include "aidl.h"
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <unistd.h>
#include <algorithm>
#include <iostream>
#include <map>
#include <memory>
#ifdef _WIN32
#include <io.h>
#include <direct.h>
#include <sys/stat.h>
#endif
#include <android-base/strings.h>
#include "aidl_language.h"
#include "generate_cpp.h"
#include "generate_java.h"
#include "import_resolver.h"
#include "logging.h"
#include "options.h"
#include "os.h"
#include "type_cpp.h"
#include "type_java.h"
#include "type_namespace.h"
#ifndef O_BINARY
# define O_BINARY 0
#endif
using android::base::Join;
using android::base::Split;
using std::cerr;
using std::endl;
using std::map;
using std::set;
using std::string;
using std::unique_ptr;
using std::vector;
namespace android {
namespace aidl {
namespace {
// The following are gotten as the offset from the allowable id's between
// android.os.IBinder.FIRST_CALL_TRANSACTION=1 and
// android.os.IBinder.LAST_CALL_TRANSACTION=16777215
const int kMinUserSetMethodId = 0;
const int kMaxUserSetMethodId = 16777214;
bool check_filename(const std::string& filename,
const std::string& package,
const std::string& name,
unsigned line) {
const char* p;
string expected;
string fn;
size_t len;
bool valid = false;
if (!IoDelegate::GetAbsolutePath(filename, &fn)) {
return false;
}
if (!package.empty()) {
expected = package;
expected += '.';
}
len = expected.length();
for (size_t i=0; i<len; i++) {
if (expected[i] == '.') {
expected[i] = OS_PATH_SEPARATOR;
}
}
expected.append(name, 0, name.find('.'));
expected += ".aidl";
len = fn.length();
valid = (len >= expected.length());
if (valid) {
p = fn.c_str() + (len - expected.length());
#ifdef _WIN32
if (OS_PATH_SEPARATOR != '/') {
// Input filename under cygwin most likely has / separators
// whereas the expected string uses \\ separators. Adjust
// them accordingly.
for (char *c = const_cast<char *>(p); *c; ++c) {
if (*c == '/') *c = OS_PATH_SEPARATOR;
}
}
#endif
// aidl assumes case-insensitivity on Mac Os and Windows.
#if defined(__linux__)
valid = (expected == p);
#else
valid = !strcasecmp(expected.c_str(), p);
#endif
}
if (!valid) {
fprintf(stderr, "%s:%d %s should be declared in a file called %s.\n",
filename.c_str(), line, name.c_str(), expected.c_str());
}
return valid;
}
bool check_filenames(const std::string& filename, const AidlDocument& doc) {
bool success = true;
for (const auto& item : doc.GetDefinedTypes()) {
success &= check_filename(filename, item->GetPackage(), item->GetName(),
item->GetLine());
}
return success;
}
bool gather_types(const std::string& filename, const AidlDocument& doc, TypeNamespace* types) {
bool success = true;
for (const auto& item : doc.GetDefinedTypes()) {
const AidlInterface* interface = item->AsInterface();
if (interface != nullptr) {
success &= types->AddBinderType(*interface, filename);
continue;
}
const AidlParcelable* parcelable = item->AsParcelable();
if (parcelable != nullptr) {
success &= types->AddParcelableType(*parcelable, filename);
continue;
}
CHECK(false) << "aidl internal error: unrecognized type";
}
return success;
}
int check_types(const string& filename, const AidlStructuredParcelable* parcel,
TypeNamespace* types) {
int err = 0;
for (const auto& v : parcel->GetFields()) {
if (!v->CheckValid()) {
err = 1;
}
if (!types->MaybeAddContainerType(v->GetType())) {
err = 1; // return type is invalid
}
const ValidatableType* type = types->GetReturnType(v->GetType(), filename, *parcel);
if (!type) {
err = 1;
}
v->GetMutableType()->SetLanguageType(type);
}
return err;
}
int check_types(const string& filename,
const AidlInterface* c,
TypeNamespace* types) {
int err = 0;
if (c->IsUtf8() && c->IsUtf8InCpp()) {
cerr << filename << ":" << c->GetLine()
<< "Interface cannot be marked as both @utf8 and @utf8InCpp";
err = 1;
}
// Has to be a pointer due to deleting copy constructor. No idea why.
map<string, const AidlMethod*> method_names;
for (const auto& m : c->GetMethods()) {
bool oneway = m->IsOneway() || c->IsOneway();
if (!types->MaybeAddContainerType(m->GetType())) {
err = 1; // return type is invalid
}
const ValidatableType* return_type =
types->GetReturnType(m->GetType(), filename, *c);
if (!m->GetType().CheckValid()) {
err = 1;
}
if (!return_type) {
err = 1;
}
m->GetMutableType()->SetLanguageType(return_type);
if (oneway && m->GetType().GetName() != "void") {
cerr << filename << ":" << m->GetLine()
<< " oneway method '" << m->GetName() << "' cannot return a value"
<< endl;
err = 1;
}
int index = 1;
for (const auto& arg : m->GetArguments()) {
if (!types->MaybeAddContainerType(arg->GetType())) {
err = 1;
}
if (!arg->GetType().CheckValid()) {
err = 1;
}
const ValidatableType* arg_type =
types->GetArgType(*arg, index, filename, *c);
if (!arg_type) {
err = 1;
}
arg->GetMutableType()->SetLanguageType(arg_type);
if (oneway && arg->IsOut()) {
cerr << filename << ":" << m->GetLine()
<< " oneway method '" << m->GetName()
<< "' cannot have out parameters" << endl;
err = 1;
}
}
auto it = method_names.find(m->GetName());
// prevent duplicate methods
if (it == method_names.end()) {
method_names[m->GetName()] = m.get();
} else {
cerr << filename << ":" << m->GetLine()
<< " attempt to redefine method " << m->GetName() << "," << endl
<< filename << ":" << it->second->GetLine()
<< " previously defined here." << endl;
err = 1;
}
}
return err;
}
bool write_dep_file(const Options& options, const AidlDefinedType& defined_type,
const vector<unique_ptr<AidlImport>>& imports, const IoDelegate& io_delegate,
const string& input_file, const string& output_file) {
string dep_file_name = options.DependencyFile();
if (dep_file_name.empty() && options.AutoDepFile()) {
dep_file_name = output_file + ".d";
}
if (dep_file_name.empty()) {
return true; // nothing to do
}
CodeWriterPtr writer = io_delegate.GetCodeWriter(dep_file_name);
if (!writer) {
LOG(ERROR) << "Could not open dependency file: " << dep_file_name;
return false;
}
vector<string> source_aidl = {input_file};
for (const auto& import : imports) {
if (!import->GetFilename().empty()) {
source_aidl.push_back(import->GetFilename());
}
}
// Encode that the output file depends on aidl input files.
writer->Write("%s : \\\n", output_file.c_str());
writer->Write(" %s", Join(source_aidl, " \\\n ").c_str());
writer->Write("\n");
if (!options.DependencyFileNinja()) {
writer->Write("\n");
// Output "<input_aidl_file>: " so make won't fail if the input .aidl file
// has been deleted, moved or renamed in incremental build.
for (const auto& src : source_aidl) {
writer->Write("%s :\n", src.c_str());
}
}
if (options.TargetLanguage() == Options::Language::CPP) {
if (!options.DependencyFileNinja()) {
using ::android::aidl::cpp::ClassNames;
using ::android::aidl::cpp::HeaderFile;
vector<string> headers;
for (ClassNames c : {ClassNames::CLIENT, ClassNames::SERVER, ClassNames::INTERFACE}) {
headers.push_back(options.OutputHeaderDir() + '/' +
HeaderFile(defined_type, c, false /* use_os_sep */));
}
writer->Write("\n");
// Generated headers also depend on the source aidl files.
writer->Write("%s : \\\n %s\n", Join(headers, " \\\n ").c_str(),
Join(source_aidl, " \\\n ").c_str());
}
}
return true;
}
string generate_outputFileName(const Options& options, const AidlDefinedType& defined_type) {
// create the path to the destination folder based on the
// defined_type package name
string result = options.OutputDir();
result += OS_PATH_SEPARATOR;
string package = defined_type.GetPackage();
size_t len = package.length();
for (size_t i = 0; i < len; i++) {
if (package[i] == '.') {
package[i] = OS_PATH_SEPARATOR;
}
}
result += package;
// add the filename by replacing the .aidl extension to .java
const string& name = defined_type.GetName();
result += OS_PATH_SEPARATOR;
result.append(name, 0, name.find('.'));
result += ".java";
return result;
}
int check_and_assign_method_ids(const char * filename,
const std::vector<std::unique_ptr<AidlMethod>>& items) {
// Check whether there are any methods with manually assigned id's and any that are not.
// Either all method id's must be manually assigned or all of them must not.
// Also, check for duplicates of user set id's and that the id's are within the proper bounds.
set<int> usedIds;
bool hasUnassignedIds = false;
bool hasAssignedIds = false;
for (const auto& item : items) {
if (item->HasId()) {
hasAssignedIds = true;
// Ensure that the user set id is not duplicated.
if (usedIds.find(item->GetId()) != usedIds.end()) {
// We found a duplicate id, so throw an error.
fprintf(stderr,
"%s:%d Found duplicate method id (%d) for method: %s\n",
filename, item->GetLine(),
item->GetId(), item->GetName().c_str());
return 1;
}
// Ensure that the user set id is within the appropriate limits
if (item->GetId() < kMinUserSetMethodId ||
item->GetId() > kMaxUserSetMethodId) {
fprintf(stderr, "%s:%d Found out of bounds id (%d) for method: %s\n",
filename, item->GetLine(),
item->GetId(), item->GetName().c_str());
fprintf(stderr, " Value for id must be between %d and %d inclusive.\n",
kMinUserSetMethodId, kMaxUserSetMethodId);
return 1;
}
usedIds.insert(item->GetId());
} else {
hasUnassignedIds = true;
}
if (hasAssignedIds && hasUnassignedIds) {
fprintf(stderr,
"%s: You must either assign id's to all methods or to none of them.\n",
filename);
return 1;
}
}
// In the case that all methods have unassigned id's, set a unique id for them.
if (hasUnassignedIds) {
int newId = 0;
for (const auto& item : items) {
item->SetId(newId++);
}
}
// success
return 0;
}
bool validate_constants(const AidlInterface& interface) {
bool success = true;
set<string> names;
for (const std::unique_ptr<AidlConstantDeclaration>& constant :
interface.GetConstantDeclarations()) {
if (names.count(constant->GetName()) > 0) {
LOG(ERROR) << "Found duplicate constant name '" << constant->GetName() << "'";
success = false;
}
names.insert(constant->GetName());
success = success && constant->CheckValid();
}
return success;
}
// TODO: Remove this in favor of using the YACC parser b/25479378
bool ParsePreprocessedLine(const string& line, string* decl,
vector<string>* package, string* class_name) {
// erase all trailing whitespace and semicolons
const size_t end = line.find_last_not_of(" ;\t");
if (end == string::npos) {
return false;
}
if (line.rfind(';', end) != string::npos) {
return false;
}
decl->clear();
string type;
vector<string> pieces = Split(line.substr(0, end + 1), " \t");
for (const string& piece : pieces) {
if (piece.empty()) {
continue;
}
if (decl->empty()) {
*decl = std::move(piece);
} else if (type.empty()) {
type = std::move(piece);
} else {
return false;
}
}
// Note that this logic is absolutely wrong. Given a parcelable
// org.some.Foo.Bar, the class name is Foo.Bar, but this code will claim that
// the class is just Bar. However, this was the way it was done in the past.
//
// See b/17415692
size_t dot_pos = type.rfind('.');
if (dot_pos != string::npos) {
*class_name = type.substr(dot_pos + 1);
*package = Split(type.substr(0, dot_pos), ".");
} else {
*class_name = type;
package->clear();
}
return true;
}
} // namespace
namespace internals {
bool parse_preprocessed_file(const IoDelegate& io_delegate, const string& filename,
TypeNamespace* types, AidlTypenames& typenames) {
bool success = true;
unique_ptr<LineReader> line_reader = io_delegate.GetLineReader(filename);
if (!line_reader) {
LOG(ERROR) << "cannot open preprocessed file: " << filename;
success = false;
return success;
}
string line;
unsigned lineno = 1;
for ( ; line_reader->ReadLine(&line); ++lineno) {
if (line.empty() || line.compare(0, 2, "//") == 0) {
// skip comments and empty lines
continue;
}
string decl;
vector<string> package;
string class_name;
if (!ParsePreprocessedLine(line, &decl, &package, &class_name)) {
success = false;
break;
}
if (decl == "parcelable") {
AidlParcelable* doc =
new AidlParcelable(new AidlQualifiedName(class_name, ""), lineno, package);
types->AddParcelableType(*doc, filename);
typenames.AddPreprocessedType(unique_ptr<AidlParcelable>(doc));
} else if (decl == "structured_parcelable") {
auto temp = new std::vector<std::unique_ptr<AidlVariableDeclaration>>();
AidlStructuredParcelable* doc = new AidlStructuredParcelable(
new AidlQualifiedName(class_name, ""), lineno, package, temp);
types->AddParcelableType(*doc, filename);
typenames.AddPreprocessedType(unique_ptr<AidlStructuredParcelable>(doc));
} else if (decl == "interface") {
auto temp = new std::vector<std::unique_ptr<AidlMember>>();
AidlInterface* doc = new AidlInterface(class_name, lineno, "", false, temp, package);
types->AddBinderType(*doc, filename);
typenames.AddPreprocessedType(unique_ptr<AidlInterface>(doc));
} else {
success = false;
break;
}
}
if (!success) {
LOG(ERROR) << filename << ':' << lineno
<< " malformed preprocessed file line: '" << line << "'";
}
return success;
}
AidlError load_and_validate_aidl(const std::vector<std::string>& preprocessed_files,
const ImportResolver& import_resolver,
const std::string& input_file_name, bool generate_traces,
bool is_structured, const IoDelegate& io_delegate,
TypeNamespace* types,
std::unique_ptr<AidlDefinedType>* returned_type,
std::vector<std::unique_ptr<AidlImport>>* returned_imports) {
AidlError err = AidlError::OK;
// import the preprocessed file
for (const string& s : preprocessed_files) {
if (!parse_preprocessed_file(io_delegate, s, types, types->typenames_)) {
err = AidlError::BAD_PRE_PROCESSED_FILE;
}
}
if (err != AidlError::OK) {
return err;
}
// parse the input file
Parser p{io_delegate, types->typenames_};
if (!p.ParseFile(input_file_name)) {
return AidlError::PARSE_ERROR;
}
AidlDocument* parsed_doc = p.GetDocument();
if (parsed_doc->GetDefinedTypes().empty()) {
LOG(ERROR) << "Cannot generate file without any definitions.";
return AidlError::BAD_TYPE;
}
bool has_only_unstructured_parcelables = true;
for (const auto& defined_type : parsed_doc->GetDefinedTypes()) {
if (defined_type->AsUnstructuredParcelable() == nullptr) {
has_only_unstructured_parcelables = false;
break;
}
}
if (has_only_unstructured_parcelables) {
LOG(ERROR) << "Refusing to generate code with unstructured parcelables.";
return AidlError::FOUND_PARCELABLE;
}
if (parsed_doc->GetDefinedTypes().size() > 1) {
LOG(ERROR) << "Exactly one structured type is required to be defined.";
return AidlError::BAD_TYPE;
}
unique_ptr<AidlDefinedType> defined_type(parsed_doc->ReleaseDefinedType());
AidlInterface* interface = defined_type->AsInterface();
AidlStructuredParcelable* parcelable = defined_type->AsStructuredParcelable();
CHECK(interface != nullptr || parcelable != nullptr);
if (!check_filename(input_file_name.c_str(), defined_type->GetPackage(), defined_type->GetName(),
defined_type->GetLine()) ||
!types->IsValidPackage(defined_type->GetPackage())) {
LOG(ERROR) << "Invalid package declaration '" << defined_type->GetPackage() << "'";
return AidlError::BAD_PACKAGE;
}
// parse the imports of the input file
for (auto& import : p.GetImports()) {
if (types->HasImportType(*import)) {
// There are places in the Android tree where an import doesn't resolve,
// but we'll pick the type up through the preprocessed types.
// This seems like an error, but legacy support demands we support it...
continue;
}
string import_path = import_resolver.FindImportFile(import->GetNeededClass());
if (import_path.empty()) {
cerr << import->GetFileFrom() << ":" << import->GetLine()
<< ": couldn't find import for class "
<< import->GetNeededClass() << endl;
err = AidlError::BAD_IMPORT;
continue;
}
import->SetFilename(import_path);
Parser p{io_delegate, types->typenames_};
if (!p.ParseFile(import->GetFilename())) {
cerr << "error while parsing import for class "
<< import->GetNeededClass() << endl;
err = AidlError::BAD_IMPORT;
continue;
}
std::unique_ptr<AidlDocument> document(p.ReleaseDocument());
if (!check_filenames(import->GetFilename(), *document)) err = AidlError::BAD_IMPORT;
import->SetAidlDocument(std::move(document));
}
if (err != AidlError::OK) {
return err;
}
if (!p.Resolve()) {
return AidlError::BAD_TYPE;
}
if (interface) {
// gather the types that have been declared
if (!types->AddBinderType(*interface, input_file_name)) {
err = AidlError::BAD_TYPE;
}
interface->SetGenerateTraces(generate_traces);
}
if (parcelable) {
if (!types->AddParcelableType(*parcelable, input_file_name)) {
err = AidlError::BAD_TYPE;
}
}
defined_type->SetLanguageType(types->GetDefinedType(*defined_type));
for (const auto& import : p.GetImports()) {
// If we skipped an unresolved import above (see comment there) we'll have
// an empty bucket here.
const AidlDocument* doc = import->GetAidlDocument();
if (doc == nullptr) {
continue;
}
if (!gather_types(import->GetFilename(), *doc, types)) {
err = AidlError::BAD_TYPE;
}
}
// check the referenced types in parsed_doc to make sure we've imported them
if (interface && check_types(input_file_name, interface, types) != 0) {
err = AidlError::BAD_TYPE;
}
if (parcelable && check_types(input_file_name, parcelable, types) != 0) {
err = AidlError::BAD_TYPE;
}
if (err != AidlError::OK) {
return err;
}
if (is_structured) {
types->typenames_.IterateTypes([&](const AidlDefinedType& type) {
if (type.AsUnstructuredParcelable() != nullptr) {
err = AidlError::BAD_TYPE;
LOG(ERROR) << type.GetCanonicalName()
<< " is not structured, but this is a structured interface.";
}
});
}
if (err != AidlError::OK) {
return err;
}
// assign method ids and validate.
if (interface &&
check_and_assign_method_ids(input_file_name.c_str(), interface->GetMethods()) != 0) {
return AidlError::BAD_METHOD_ID;
}
if (interface && !validate_constants(*interface)) {
return AidlError::BAD_CONSTANTS;
}
*returned_type = std::move(defined_type);
if (returned_imports)
p.ReleaseImports(returned_imports);
return AidlError::OK;
}
} // namespace internals
int compile_aidl_to_cpp(const Options& options, const IoDelegate& io_delegate) {
for (const string& input_file : options.InputFiles()) {
unique_ptr<AidlDefinedType> defined_type;
std::vector<std::unique_ptr<AidlImport>> imports;
unique_ptr<cpp::TypeNamespace> types(new cpp::TypeNamespace());
types->Init();
ImportResolver import_resolver{io_delegate, options.ImportPaths(), options.InputFiles()};
AidlError err = internals::load_and_validate_aidl(
options.PreprocessedFiles(), import_resolver, input_file, options.GenTraces(),
options.IsStructured(), io_delegate, types.get(), &defined_type, &imports);
if (err != AidlError::OK) {
return 1;
}
CHECK(defined_type != nullptr);
string output_file_name = options.OutputFile();
// if needed, generate the output file name from the base folder
if (output_file_name.empty() && !options.OutputDir().empty()) {
output_file_name = options.OutputDir() + defined_type->GetName() + ".cpp";
}
if (!write_dep_file(options, *defined_type, imports, io_delegate, input_file,
output_file_name)) {
return 1;
}
bool success = cpp::GenerateCpp(output_file_name, options, *types, *defined_type, io_delegate);
if (!success) {
return 1;
}
}
return 0;
}
int compile_aidl_to_java(const Options& options, const IoDelegate& io_delegate) {
for (const string& input_file : options.InputFiles()) {
unique_ptr<AidlDefinedType> defined_type;
std::vector<std::unique_ptr<AidlImport>> imports;
unique_ptr<java::JavaTypeNamespace> types(new java::JavaTypeNamespace());
types->Init();
ImportResolver import_resolver{io_delegate, options.ImportPaths(), options.InputFiles()};
AidlError aidl_err = internals::load_and_validate_aidl(
options.PreprocessedFiles(), import_resolver, input_file, options.GenTraces(),
options.IsStructured(), io_delegate, types.get(), &defined_type, &imports);
if (aidl_err == AidlError::FOUND_PARCELABLE && !options.FailOnParcelable()) {
// We aborted code generation because this file contains parcelables.
// However, we were not told to complain if we find parcelables.
// Just generate a dep file and exit quietly. The dep file is for a legacy
// use case by the SDK.
write_dep_file(options, *defined_type, imports, io_delegate, input_file, "");
return 0;
}
if (aidl_err != AidlError::OK) {
return 1;
}
CHECK(defined_type != nullptr);
string output_file_name = options.OutputFile();
// if needed, generate the output file name from the base folder
if (output_file_name.empty() && !options.OutputDir().empty()) {
output_file_name = generate_outputFileName(options, *defined_type);
}
// make sure the folders of the output file all exists
if (!io_delegate.CreatePathForFile(output_file_name)) {
return 1;
}
if (!write_dep_file(options, *defined_type, imports, io_delegate, input_file,
output_file_name)) {
return 1;
}
bool success = generate_java(output_file_name, input_file.c_str(), defined_type.get(),
types.get(), io_delegate, options);
if (!success) {
return 1;
}
}
return 0;
}
bool preprocess_aidl(const Options& options, const IoDelegate& io_delegate) {
unique_ptr<CodeWriter> writer = io_delegate.GetCodeWriter(options.OutputFile());
for (const auto& file : options.InputFiles()) {
AidlTypenames typenames;
Parser p{io_delegate, typenames};
if (!p.ParseFile(file))
return false;
AidlDocument* doc = p.GetDocument();
string line;
for (const auto& defined_type : doc->GetDefinedTypes()) {
if (!writer->Write("%s %s;\n", defined_type->GetPreprocessDeclarationName().c_str(),
defined_type->GetCanonicalName().c_str())) {
return false;
}
}
}
return writer->Close();
}
bool dump_api(const Options& options, const IoDelegate& io_delegate) {
ImportResolver import_resolver{io_delegate, options.ImportPaths(), options.InputFiles()};
map<string, vector<unique_ptr<AidlDefinedType>>> types_by_package;
for (const auto& file : options.InputFiles()) {
unique_ptr<java::JavaTypeNamespace> types(new java::JavaTypeNamespace());
types->Init();
unique_ptr<AidlDefinedType> t;
if (internals::load_and_validate_aidl(options.PreprocessedFiles(), import_resolver, file,
options.GenTraces(), options.IsStructured(), io_delegate,
types.get(), &t, nullptr) == AidlError::OK) {
// group them by package name
string package = t->GetPackage();
types_by_package[package].emplace_back(std::move(t));
} else {
return false;
}
}
// sort types within a package by their name. packages are already sorted.
for (auto it = types_by_package.begin(); it != types_by_package.end(); it++) {
auto& list = it->second;
std::sort(list.begin(), list.end(), [](const auto& lhs, const auto& rhs) {
return lhs->GetName().compare(rhs->GetName());
});
}
// print
unique_ptr<CodeWriter> writer = io_delegate.GetCodeWriter(options.OutputFile());
for (auto it = types_by_package.begin(); it != types_by_package.end(); it++) {
writer->Write("package %s {\n", it->first.c_str());
writer->Indent();
for (const auto& type : it->second) {
type->Write(writer.get());
writer->Write("\n");
}
writer->Dedent();
writer->Write("}\n");
}
return writer->Close();
}
} // namespace android
} // namespace aidl