blob: 77c5f31966d5e0efcd3984ed28cc3227318076a2 [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_checkapi.h"
#include "aidl_dumpapi.h"
#include "aidl_language.h"
#include "aidl_typenames.h"
#include "generate_aidl_mappings.h"
#include "generate_cpp.h"
#include "generate_java.h"
#include "generate_ndk.h"
#include "generate_rust.h"
#include "import_resolver.h"
#include "logging.h"
#include "options.h"
#include "os.h"
#include "parser.h"
#ifndef O_BINARY
# define O_BINARY 0
#endif
using android::base::Join;
using android::base::Split;
using std::set;
using std::string;
using std::unique_ptr;
using std::unordered_set;
using std::vector;
namespace android {
namespace aidl {
namespace {
// Copied from android.is.IBinder.[FIRST|LAST]_CALL_TRANSACTION
const int kFirstCallTransaction = 1;
const int kLastCallTransaction = 0x00ffffff;
// Following IDs are all offsets from kFirstCallTransaction
// IDs for meta transactions. Most of the meta transactions are implemented in
// the framework side (Binder.java or Binder.cpp). But these are the ones that
// are auto-implemented by the AIDL compiler.
const int kFirstMetaMethodId = kLastCallTransaction - kFirstCallTransaction;
const int kGetInterfaceVersionId = kFirstMetaMethodId;
const int kGetInterfaceHashId = kFirstMetaMethodId - 1;
// Additional meta transactions implemented by AIDL should use
// kFirstMetaMethodId -1, -2, ...and so on.
// Reserve 100 IDs for meta methods, which is more than enough. If we don't reserve,
// in the future, a newly added meta transaction ID will have a chance to
// collide with the user-defined methods that were added in the past. So,
// let's prevent users from using IDs in this range from the beginning.
const int kLastMetaMethodId = kFirstMetaMethodId - 99;
// Range of IDs that is allowed for user-defined methods.
const int kMinUserSetMethodId = 0;
const int kMaxUserSetMethodId = kLastMetaMethodId - 1;
bool check_filename(const std::string& filename, const AidlDefinedType& defined_type) {
const char* p;
string expected;
string fn;
size_t len;
bool valid = false;
if (!IoDelegate::GetAbsolutePath(filename, &fn)) {
return false;
}
const std::string package = defined_type.GetPackage();
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;
}
}
const std::string name = defined_type.GetName();
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) {
AIDL_ERROR(defined_type) << name << " should be declared in a file called " << expected;
}
return valid;
}
bool write_dep_file(const Options& options, const AidlDefinedType& defined_type,
const vector<string>& 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) {
AIDL_ERROR(dep_file_name) << "Could not open dependency file.";
return false;
}
vector<string> source_aidl = {input_file};
for (const auto& import : imports) {
source_aidl.push_back(import);
}
// Encode that the output file depends on aidl input files.
if (defined_type.AsUnstructuredParcelable() != nullptr &&
options.TargetLanguage() == Options::Language::JAVA) {
// Legacy behavior. For parcelable declarations in Java, don't emit output file as
// the dependency target. b/141372861
writer->Write(" : \\\n");
} else {
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.IsCppOutput()) {
if (!options.DependencyFileNinja()) {
using ::android::aidl::cpp::ClassNames;
using ::android::aidl::cpp::HeaderFile;
vector<string> headers;
for (ClassNames c : {ClassNames::CLIENT, ClassNames::SERVER, ClassNames::RAW}) {
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;
}
// Returns the path to the destination file of `defined_type`.
string GetOutputFilePath(const Options& options, const AidlDefinedType& defined_type) {
string result = options.OutputDir();
// add the package
string package = defined_type.GetPackage();
if (!package.empty()) {
for (auto& c : package) {
if (c == '.') {
c = OS_PATH_SEPARATOR;
}
}
result += package;
result += OS_PATH_SEPARATOR;
}
// add the filename
result += defined_type.GetName();
if (options.TargetLanguage() == Options::Language::JAVA) {
result += ".java";
} else if (options.IsCppOutput()) {
result += ".cpp";
} else if (options.TargetLanguage() == Options::Language::RUST) {
result += ".rs";
} else {
AIDL_FATAL("Unknown target language");
return "";
}
return result;
}
bool check_and_assign_method_ids(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 uplicates of user set ID's and that the
// ID's are within the proper bounds.
set<int> usedIds;
bool hasUnassignedIds = false;
bool hasAssignedIds = false;
int newId = kMinUserSetMethodId;
for (const auto& item : items) {
// However, meta transactions that are added by the AIDL compiler are
// exceptions. They have fixed IDs but allowed to be with user-defined
// methods having auto-assigned IDs. This is because the Ids of the meta
// transactions must be stable during the entire lifetime of an interface.
// In other words, their IDs must be the same even when new user-defined
// methods are added.
if (!item->IsUserDefined()) {
continue;
}
if (item->HasId()) {
hasAssignedIds = true;
} else {
item->SetId(newId++);
hasUnassignedIds = true;
}
if (hasAssignedIds && hasUnassignedIds) {
AIDL_ERROR(item) << "You must either assign id's to all methods or to none of them.";
return false;
}
// 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.
AIDL_ERROR(item) << "Found duplicate method id (" << item->GetId() << ") for method "
<< item->GetName();
return false;
}
usedIds.insert(item->GetId());
// Ensure that the user set id is within the appropriate limits
if (item->GetId() < kMinUserSetMethodId || item->GetId() > kMaxUserSetMethodId) {
AIDL_ERROR(item) << "Found out of bounds id (" << item->GetId() << ") for method "
<< item->GetName() << ". Value for id must be between "
<< kMinUserSetMethodId << " and " << kMaxUserSetMethodId << " inclusive.";
return false;
}
}
return true;
}
// TODO: Remove this in favor of using the YACC parser b/25479378
bool ParsePreprocessedLine(const string& line, string* decl, std::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 = type.substr(0, dot_pos);
} else {
*class_name = type;
package->clear();
}
return true;
}
bool ValidateAnnotationContext(const AidlDocument& doc) {
struct AnnotationValidator : AidlVisitor {
bool success = true;
void Check(const AidlAnnotatable& annotatable, AidlAnnotation::TargetContext context) {
for (const auto& annot : annotatable.GetAnnotations()) {
if (!annot.CheckContext(context)) {
success = false;
}
}
}
void Visit(const AidlInterface& m) override {
Check(m, AidlAnnotation::CONTEXT_TYPE_INTERFACE);
}
void Visit(const AidlParcelable& m) override {
Check(m, AidlAnnotation::CONTEXT_TYPE_UNSTRUCTURED_PARCELABLE);
}
void Visit(const AidlStructuredParcelable& m) override {
Check(m, AidlAnnotation::CONTEXT_TYPE_STRUCTURED_PARCELABLE);
}
void Visit(const AidlEnumDeclaration& m) override {
Check(m, AidlAnnotation::CONTEXT_TYPE_ENUM);
}
void Visit(const AidlUnionDecl& m) override { Check(m, AidlAnnotation::CONTEXT_TYPE_UNION); }
void Visit(const AidlMethod& m) override {
Check(m.GetType(), AidlAnnotation::CONTEXT_TYPE_SPECIFIER | AidlAnnotation::CONTEXT_METHOD);
for (const auto& arg : m.GetArguments()) {
Check(arg->GetType(), AidlAnnotation::CONTEXT_TYPE_SPECIFIER);
}
}
void Visit(const AidlConstantDeclaration& m) override {
Check(m.GetType(), AidlAnnotation::CONTEXT_TYPE_SPECIFIER | AidlAnnotation::CONTEXT_CONST);
}
void Visit(const AidlVariableDeclaration& m) override {
Check(m.GetType(), AidlAnnotation::CONTEXT_TYPE_SPECIFIER | AidlAnnotation::CONTEXT_FIELD);
}
void Visit(const AidlTypeSpecifier& m) override {
// nested generic type parameters are checked as well
if (m.IsGeneric()) {
for (const auto& tp : m.GetTypeParameters()) {
Check(*tp, AidlAnnotation::CONTEXT_TYPE_SPECIFIER);
}
}
}
};
AnnotationValidator validator;
VisitTopDown(validator, doc);
return validator.success;
}
} // namespace
namespace internals {
bool parse_preprocessed_file(const IoDelegate& io_delegate, const string& filename,
AidlTypenames* typenames) {
bool success = true;
unique_ptr<LineReader> line_reader = io_delegate.GetLineReader(filename);
if (!line_reader) {
AIDL_ERROR(filename) << "cannot open preprocessed file";
success = false;
return success;
}
string line;
int lineno = 1;
for ( ; line_reader->ReadLine(&line); ++lineno) {
if (line.empty() || line.compare(0, 2, "//") == 0) {
// skip comments and empty lines
continue;
}
string decl;
std::string package;
string class_name;
if (!ParsePreprocessedLine(line, &decl, &package, &class_name)) {
success = false;
break;
}
AidlLocation::Point point = {.line = lineno, .column = 0 /*column*/};
AidlLocation location = AidlLocation(filename, point, point, AidlLocation::Source::EXTERNAL);
if (decl == "parcelable") {
// ParcelFileDescriptor is treated as a built-in type, but it's also in the framework.aidl.
// So aidl should ignore built-in types in framework.aidl to prevent duplication.
// (b/130899491)
if (AidlTypenames::IsBuiltinTypename(class_name)) {
continue;
}
AidlParcelable* doc = new AidlParcelable(location, class_name, package, Comments{});
typenames->AddPreprocessedType(unique_ptr<AidlParcelable>(doc));
} else if (decl == "structured_parcelable") {
AidlStructuredParcelable* doc =
new AidlStructuredParcelable(location, class_name, package, Comments{}, nullptr, nullptr);
typenames->AddPreprocessedType(unique_ptr<AidlStructuredParcelable>(doc));
} else if (decl == "interface") {
AidlInterface* doc =
new AidlInterface(location, class_name, Comments{}, false, package, nullptr);
typenames->AddPreprocessedType(unique_ptr<AidlInterface>(doc));
} else {
success = false;
break;
}
}
if (!success) {
AIDL_ERROR(filename) << " on line " << lineno << " malformed preprocessed file line: '" << line
<< "'";
}
return success;
}
AidlError load_and_validate_aidl(const std::string& input_file_name, const Options& options,
const IoDelegate& io_delegate, AidlTypenames* typenames,
vector<string>* imported_files) {
AidlError err = AidlError::OK;
//////////////////////////////////////////////////////////////////////////
// Loading phase
//////////////////////////////////////////////////////////////////////////
// Parse the main input file
std::unique_ptr<Parser> main_parser = Parser::Parse(input_file_name, io_delegate, *typenames);
if (main_parser == nullptr) {
return AidlError::PARSE_ERROR;
}
int num_top_level_decls = 0;
for (const auto& type : main_parser->ParsedDocument().DefinedTypes()) {
if (type->AsUnstructuredParcelable() == nullptr) {
num_top_level_decls++;
if (num_top_level_decls > 1) {
AIDL_ERROR(*type) << "You must declare only one type per file.";
return AidlError::BAD_TYPE;
}
}
}
// Import the preprocessed file
for (const string& s : options.PreprocessedFiles()) {
if (!parse_preprocessed_file(io_delegate, s, typenames)) {
err = AidlError::BAD_PRE_PROCESSED_FILE;
}
}
if (err != AidlError::OK) {
return err;
}
// Find files to import and parse them
vector<string> import_paths;
ImportResolver import_resolver{io_delegate, input_file_name, options.ImportDirs(),
options.InputFiles()};
for (const auto& import : main_parser->ParsedDocument().Imports()) {
if (AidlTypenames::IsBuiltinTypename(import->GetNeededClass())) {
continue;
}
if (typenames->IsIgnorableImport(import->GetNeededClass())) {
// 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()) {
if (typenames->ResolveTypename(import->GetNeededClass()).is_resolved) {
// This could happen when the type is from the preprocessed aidl file.
// In that case, use the type from preprocessed aidl file
continue;
}
AIDL_ERROR(input_file_name) << "Couldn't find import for class " << import->GetNeededClass();
err = AidlError::BAD_IMPORT;
continue;
}
import_paths.emplace_back(import_path);
std::unique_ptr<Parser> import_parser = Parser::Parse(import_path, io_delegate, *typenames);
if (import_parser == nullptr) {
AIDL_ERROR(import_path) << "error while importing " << import_path << " for " << import;
err = AidlError::BAD_IMPORT;
continue;
}
}
if (err != AidlError::OK) {
return err;
}
for (const auto& imported_file : options.ImportFiles()) {
import_paths.emplace_back(imported_file);
std::unique_ptr<Parser> import_parser = Parser::Parse(imported_file, io_delegate, *typenames);
if (import_parser == nullptr) {
AIDL_ERROR(imported_file) << "error while importing " << imported_file;
err = AidlError::BAD_IMPORT;
continue;
}
}
if (err != AidlError::OK) {
return err;
}
TypeResolver resolver = [&](const AidlDocument* doc, AidlTypeSpecifier* type) {
if (type->Resolve(*typenames)) return true;
const string unresolved_name = type->GetUnresolvedName();
const std::optional<string> canonical_name = doc->ResolveName(unresolved_name);
if (!canonical_name) {
return false;
}
const string import_path = import_resolver.FindImportFile(*canonical_name);
if (import_path.empty()) {
return false;
}
import_paths.push_back(import_path);
std::unique_ptr<Parser> import_parser = Parser::Parse(import_path, io_delegate, *typenames);
if (import_parser == nullptr) {
AIDL_ERROR(import_path) << "error while importing " << import_path << " for " << import_path;
return false;
}
if (!type->Resolve(*typenames)) {
AIDL_ERROR(type) << "Can't resolve " << type->GetName();
return false;
}
return true;
};
const bool is_check_api = options.GetTask() == Options::Task::CHECK_API;
const bool is_dump_api = options.GetTask() == Options::Task::DUMP_API;
// Resolve the unresolved type references found from the input file
if (!is_check_api && !main_parser->Resolve(resolver)) {
// Resolution is not need for check api because all typespecs are
// using fully qualified names.
return AidlError::BAD_TYPE;
}
if (!typenames->Autofill()) {
return AidlError::BAD_TYPE;
}
//////////////////////////////////////////////////////////////////////////
// Validation phase
//////////////////////////////////////////////////////////////////////////
// For legacy reasons, by default, compiling an unstructured parcelable (which contains no output)
// is allowed. This must not be returned as an error until the very end of this procedure since
// this may be considered a success, and we should first check that there are not other, more
// serious failures.
bool contains_unstructured_parcelable = false;
const auto& types = main_parser->ParsedDocument().DefinedTypes();
const int num_defined_types = types.size();
for (const auto& defined_type : types) {
AIDL_FATAL_IF(defined_type == nullptr, main_parser->FileName());
// Ensure type is exactly one of the following:
AidlInterface* interface = defined_type->AsInterface();
AidlStructuredParcelable* parcelable = defined_type->AsStructuredParcelable();
AidlParcelable* unstructured_parcelable = defined_type->AsUnstructuredParcelable();
AidlEnumDeclaration* enum_decl = defined_type->AsEnumDeclaration();
AidlUnionDecl* union_decl = defined_type->AsUnionDeclaration();
AIDL_FATAL_IF(
!!interface + !!parcelable + !!unstructured_parcelable + !!enum_decl + !!union_decl != 1,
defined_type);
// Ensure that foo.bar.IFoo is defined in <some_path>/foo/bar/IFoo.aidl
if (num_defined_types == 1 && !check_filename(input_file_name, *defined_type)) {
return AidlError::BAD_PACKAGE;
}
{
bool valid_type = true;
if (!is_check_api) {
// Ideally, we could do this for check api, but we can't resolve imports
if (!defined_type->CheckValid(*typenames)) {
valid_type = false;
}
}
if (!is_dump_api && !is_check_api) {
if (!defined_type->LanguageSpecificCheckValid(*typenames, options.TargetLanguage())) {
valid_type = false;
}
}
if (!valid_type) {
return AidlError::BAD_TYPE;
}
}
if (unstructured_parcelable != nullptr) {
bool isStable = unstructured_parcelable->IsStableApiParcelable(options.TargetLanguage());
if (options.IsStructured() && !isStable) {
AIDL_ERROR(unstructured_parcelable)
<< "Cannot declared parcelable in a --structured interface. Parcelable must be defined "
"in AIDL directly.";
return AidlError::NOT_STRUCTURED;
}
if (options.FailOnParcelable()) {
AIDL_ERROR(unstructured_parcelable)
<< "Refusing to generate code with unstructured parcelables. Declared parcelables "
"should be in their own file and/or cannot be used with --structured interfaces.";
// Continue parsing for more errors
}
contains_unstructured_parcelable = true;
}
if (defined_type->IsVintfStability()) {
bool success = true;
if (options.GetStability() != Options::Stability::VINTF) {
AIDL_ERROR(defined_type)
<< "Must compile @VintfStability type w/ aidl_interface 'stability: \"vintf\"'";
success = false;
}
if (!options.IsStructured()) {
AIDL_ERROR(defined_type)
<< "Must compile @VintfStability type w/ aidl_interface --structured";
success = false;
}
if (!success) return AidlError::NOT_STRUCTURED;
}
if (interface != nullptr) {
// add the meta-method 'int getInterfaceVersion()' if version is specified.
if (options.Version() > 0) {
AidlTypeSpecifier* ret =
new AidlTypeSpecifier(AIDL_LOCATION_HERE, "int", false, nullptr, Comments{});
ret->Resolve(*typenames);
vector<unique_ptr<AidlArgument>>* args = new vector<unique_ptr<AidlArgument>>();
auto method = std::make_unique<AidlMethod>(
AIDL_LOCATION_HERE, false, ret, "getInterfaceVersion", args, Comments{},
kGetInterfaceVersionId, false /* is_user_defined */);
interface->AddMethod(std::move(method));
}
// add the meta-method 'string getInterfaceHash()' if hash is specified.
if (!options.Hash().empty()) {
AidlTypeSpecifier* ret =
new AidlTypeSpecifier(AIDL_LOCATION_HERE, "String", false, nullptr, Comments{});
ret->Resolve(*typenames);
vector<unique_ptr<AidlArgument>>* args = new vector<unique_ptr<AidlArgument>>();
auto method = std::make_unique<AidlMethod>(
AIDL_LOCATION_HERE, false, ret, kGetInterfaceHash, args, Comments{},
kGetInterfaceHashId, false /* is_user_defined */);
interface->AddMethod(std::move(method));
}
if (!check_and_assign_method_ids(interface->GetMethods())) {
return AidlError::BAD_METHOD_ID;
}
}
// Verify the var/const declarations.
// const expressions should be non-empty when evaluated with the var/const type.
if (!is_check_api) {
for (const auto& constant : defined_type->GetConstantDeclarations()) {
if (constant->ValueString(AidlConstantValueDecorator).empty()) {
return AidlError::BAD_TYPE;
}
}
for (const auto& var : defined_type->GetFields()) {
if (var->GetDefaultValue() && var->ValueString(AidlConstantValueDecorator).empty()) {
return AidlError::BAD_TYPE;
}
}
}
}
if (!ValidateAnnotationContext(main_parser->ParsedDocument())) {
return AidlError::BAD_TYPE;
}
if (!is_check_api && !Diagnose(main_parser->ParsedDocument(), options.GetDiagnosticMapping())) {
return AidlError::BAD_TYPE;
}
typenames->IterateTypes([&](const AidlDefinedType& type) {
if (options.IsStructured() && type.AsUnstructuredParcelable() != nullptr &&
!type.AsUnstructuredParcelable()->IsStableApiParcelable(options.TargetLanguage())) {
err = AidlError::NOT_STRUCTURED;
AIDL_ERROR(type) << type.GetCanonicalName()
<< " is not structured, but this is a structured interface.";
}
if (options.GetStability() == Options::Stability::VINTF && !type.IsVintfStability()) {
err = AidlError::NOT_STRUCTURED;
AIDL_ERROR(type) << type.GetCanonicalName()
<< " does not have VINTF level stability, but this interface requires it.";
}
// Ensure that untyped List/Map is not used in a parcelable, a union and a stable interface.
std::function<void(const AidlTypeSpecifier&, const AidlNode*)> check_untyped_container =
[&err, &check_untyped_container](const AidlTypeSpecifier& type, const AidlNode* node) {
if (type.IsGeneric()) {
std::for_each(type.GetTypeParameters().begin(), type.GetTypeParameters().end(),
[&node, &check_untyped_container](auto& nested) {
check_untyped_container(*nested, node);
});
return;
}
if (type.GetName() == "List" || type.GetName() == "Map") {
err = AidlError::BAD_TYPE;
AIDL_ERROR(node)
<< "Encountered an untyped List or Map. The use of untyped List/Map is prohibited "
<< "because it is not guaranteed that the objects in the list are recognizable in "
<< "the receiving side. Consider switching to an array or a generic List/Map.";
}
};
if (type.AsInterface() && options.IsStructured()) {
for (const auto& method : type.GetMethods()) {
check_untyped_container(method->GetType(), method.get());
for (const auto& arg : method->GetArguments()) {
check_untyped_container(arg->GetType(), method.get());
}
}
}
for (const auto& field : type.GetFields()) {
check_untyped_container(field->GetType(), field.get());
}
});
if (err != AidlError::OK) {
return err;
}
if (imported_files != nullptr) {
*imported_files = import_paths;
}
if (contains_unstructured_parcelable) {
// Considered a success for the legacy case, so this must be returned last.
return AidlError::FOUND_PARCELABLE;
}
return AidlError::OK;
}
} // namespace internals
int compile_aidl(const Options& options, const IoDelegate& io_delegate) {
const Options::Language lang = options.TargetLanguage();
for (const string& input_file : options.InputFiles()) {
AidlTypenames typenames;
vector<string> imported_files;
AidlError aidl_err = internals::load_and_validate_aidl(input_file, options, io_delegate,
&typenames, &imported_files);
bool allowError = aidl_err == AidlError::FOUND_PARCELABLE && !options.FailOnParcelable();
if (aidl_err != AidlError::OK && !allowError) {
return 1;
}
for (const auto& defined_type : typenames.MainDocument().DefinedTypes()) {
AIDL_FATAL_IF(defined_type == nullptr, input_file);
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 = GetOutputFilePath(options, *defined_type);
if (output_file_name.empty()) {
return 1;
}
}
if (!write_dep_file(options, *defined_type, imported_files, io_delegate, input_file,
output_file_name)) {
return 1;
}
bool success = false;
if (lang == Options::Language::CPP) {
success =
cpp::GenerateCpp(output_file_name, options, typenames, *defined_type, io_delegate);
} else if (lang == Options::Language::NDK) {
ndk::GenerateNdk(output_file_name, options, typenames, *defined_type, io_delegate);
success = true;
} else if (lang == Options::Language::JAVA) {
if (defined_type->AsUnstructuredParcelable() != nullptr) {
// Legacy behavior. For parcelable declarations in Java, don't generate output file.
success = true;
} else {
success = java::generate_java(output_file_name, defined_type.get(), typenames,
io_delegate, options);
}
} else if (lang == Options::Language::RUST) {
success = rust::GenerateRust(output_file_name, defined_type.get(), typenames, io_delegate,
options);
} else {
AIDL_FATAL(input_file) << "Should not reach here.";
}
if (!success) {
return 1;
}
}
}
return 0;
}
bool dump_mappings(const Options& options, const IoDelegate& io_delegate) {
android::aidl::mappings::SignatureMap all_mappings;
for (const string& input_file : options.InputFiles()) {
AidlTypenames typenames;
vector<string> imported_files;
AidlError aidl_err = internals::load_and_validate_aidl(input_file, options, io_delegate,
&typenames, &imported_files);
if (aidl_err != AidlError::OK) {
return false;
}
for (const auto& defined_type : typenames.MainDocument().DefinedTypes()) {
auto mappings = mappings::generate_mappings(defined_type.get(), typenames);
all_mappings.insert(mappings.begin(), mappings.end());
}
}
std::stringstream mappings_str;
for (const auto& mapping : all_mappings) {
mappings_str << mapping.first << "\n" << mapping.second << "\n";
}
auto code_writer = io_delegate.GetCodeWriter(options.OutputFile());
code_writer->Write("%s", mappings_str.str().c_str());
return true;
}
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;
std::unique_ptr<Parser> p = Parser::Parse(file, io_delegate, typenames);
if (p == nullptr) return false;
for (const auto& defined_type : p->ParsedDocument().DefinedTypes()) {
if (!writer->Write("%s %s;\n", defined_type->GetPreprocessDeclarationName().c_str(),
defined_type->GetCanonicalName().c_str())) {
return false;
}
}
}
return writer->Close();
}
int aidl_entry(const Options& options, const IoDelegate& io_delegate) {
AidlErrorLog::clearError();
int ret = 1;
switch (options.GetTask()) {
case Options::Task::COMPILE:
ret = android::aidl::compile_aidl(options, io_delegate);
break;
case Options::Task::PREPROCESS:
ret = android::aidl::preprocess_aidl(options, io_delegate) ? 0 : 1;
break;
case Options::Task::DUMP_API:
ret = android::aidl::dump_api(options, io_delegate) ? 0 : 1;
break;
case Options::Task::CHECK_API:
ret = android::aidl::check_api(options, io_delegate) ? 0 : 1;
break;
case Options::Task::DUMP_MAPPINGS:
ret = android::aidl::dump_mappings(options, io_delegate) ? 0 : 1;
break;
default:
AIDL_FATAL(AIDL_LOCATION_HERE)
<< "Unrecognized task: " << static_cast<size_t>(options.GetTask());
}
// compiler invariants
const bool shouldReportError = ret != 0;
const bool reportedError = AidlErrorLog::hadError();
AIDL_FATAL_IF(shouldReportError != reportedError, AIDL_LOCATION_HERE)
<< "Compiler returned error " << ret << " but did" << (reportedError ? "" : " not")
<< " emit error logs";
return ret;
}
} // namespace aidl
} // namespace android