blob: 368e724a9461b3455ae3a6acb2bad1edfe5598e5 [file] [log] [blame]
/*
* Copyright (C) 2018, 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.
*/
#pragma once
#include <functional>
#include <string>
#include <type_traits>
#include "aidl_language.h"
// This is used to help generate code targetting C++ (the language) whether using the libbinder or
// libbinder_ndk backend.
namespace android {
namespace aidl {
namespace cpp {
// provides _call_toString(expr) which call expr.toString() if possible
extern char kToStringHelper[];
extern char kTransactionLogStruct[];
// These roughly correspond to the various class names in the C++ hierarchy:
enum class ClassNames {
BASE, // Foo (not a real class, but useful in some circumstances).
CLIENT, // BpFoo
SERVER, // BnFoo
INTERFACE, // IFoo
DEFAULT_IMPL, // IFooDefault
RAW, // (as shown in the file)
};
string ClassName(const AidlDefinedType& defined_type, ClassNames type);
// Generate the relative path to a header file. If |use_os_sep| we'll use the
// operating system specific path separator rather than C++'s expected '/' when
// including headers.
std::string HeaderFile(const AidlDefinedType& defined_type, ClassNames class_type,
bool use_os_sep = true);
void EnterNamespace(CodeWriter& out, const AidlDefinedType& defined_type);
void LeaveNamespace(CodeWriter& out, const AidlDefinedType& defined_type);
string BuildVarName(const AidlArgument& a);
const string GenLogBeforeExecute(const string className, const AidlMethod& method, bool isServer,
bool isNdk);
const string GenLogAfterExecute(const string className, const AidlInterface& interface,
const AidlMethod& method, const string& statusVarName,
const string& returnVarName, bool isServer, bool isNdk);
template <typename T, typename = std::enable_if_t<std::is_copy_constructible_v<T>>>
std::vector<T> Append(std::vector<T> as, const std::vector<T>& bs) {
as.insert(as.end(), bs.begin(), bs.end());
return as;
}
template <typename T>
std::vector<T> Append(std::vector<T>&& as, std::vector<T>&& bs) {
std::vector<T> appended = std::move(as);
std::copy(std::move_iterator(bs.begin()), std::move_iterator(bs.end()),
std::back_inserter(appended));
return appended;
}
std::string GenerateEnumValues(const AidlEnumDeclaration& enum_decl,
const std::vector<std::string>& enclosing_namespaces_of_enum_decl);
std::string TemplateDecl(const AidlParcelable& defined_type);
void GenerateParcelableComparisonOperators(CodeWriter& out, const AidlParcelable& parcelable);
void GenerateToString(CodeWriter& out, const AidlStructuredParcelable& parcelable);
void GenerateToString(CodeWriter& out, const AidlUnionDecl& parcelable);
std::string GetDeprecatedAttribute(const AidlCommentable& type);
template <typename Stream>
void GenerateDeprecated(Stream& out, const AidlCommentable& type) {
if (auto deprecated = GetDeprecatedAttribute(type); !deprecated.empty()) {
out << " " + deprecated;
}
}
struct ParcelWriterContext {
string status_type;
string status_ok;
string status_bad;
std::function<void(CodeWriter& out, const std::string& var, const AidlTypeSpecifier& type)>
read_func;
std::function<void(CodeWriter& out, const std::string& value, const AidlTypeSpecifier& type)>
write_func;
};
struct UnionWriter {
const AidlUnionDecl& decl;
const AidlTypenames& typenames;
const std::function<std::string(const AidlTypeSpecifier&, const AidlTypenames&)> name_of;
const ::ConstantValueDecorator& decorator;
static const std::vector<std::string> headers;
void PrivateFields(CodeWriter& out) const;
void PublicFields(CodeWriter& out) const;
void ReadFromParcel(CodeWriter& out, const ParcelWriterContext&) const;
void WriteToParcel(CodeWriter& out, const ParcelWriterContext&) const;
};
} // namespace cpp
} // namespace aidl
} // namespace android