1 /*
2 * Copyright (C) 2018, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #pragma once
17
18 #include "aidl_language.h"
19 #include "aidl_to_cpp_common.h"
20
21 namespace android {
22 namespace aidl {
23 namespace ndk {
24
25 enum class StorageMode {
26 STACK,
27 ARGUMENT, // Value for primitives, const& for larger types
28 OUT_ARGUMENT, // Pointer to raw type
29 };
30
31 std::string NdkHeaderFile(const AidlDefinedType& defined_type, cpp::ClassNames name,
32 bool use_os_sep = true);
33
34 std::string ConstantValueDecorator(const AidlTypeSpecifier& type, const std::string& raw_value);
35
36 // Returns ::aidl::some_package::some_sub_package::foo::IFoo/BpFoo/BnFoo
37 std::string NdkFullClassName(const AidlDefinedType& type, cpp::ClassNames name);
38
39 // Returns the corresponding Ndk type name for an AIDL type spec including
40 // array modifiers.
41 std::string NdkNameOf(const AidlTypenames& types, const AidlTypeSpecifier& aidl, StorageMode mode);
42
43 // Return the alignment of known types and enum backing types.
44 // If the alignment is unknown, or it is a FizedSize parcelable with its
45 // own guaranteed alignment(so it does not need to be specified), 0 will be
46 // returned.
47 size_t NdkAlignmentOf(const AidlTypenames& types, const AidlTypeSpecifier& aidl);
48
49 struct CodeGeneratorContext {
50 CodeWriter& writer;
51
52 const AidlTypenames& types;
53 const AidlTypeSpecifier& type;
54
55 const string parcel;
56 const string var;
57 };
58
59 void WriteToParcelFor(const CodeGeneratorContext& c);
60 void ReadFromParcelFor(const CodeGeneratorContext& c);
61
62 // Returns argument list of a method where each arg is formatted by the fomatter
63 std::string NdkArgList(
64 const AidlTypenames& types, const AidlMethod& method,
65 std::function<std::string(const std::string& type, const std::string& name, bool isOut)>
66 formatter);
67
FormatArgForDecl(const std::string & type,const std::string & name,bool)68 inline std::string FormatArgForDecl(const std::string& type, const std::string& name,
69 bool /*isOut*/) {
70 return type + " " + name;
71 }
72
FormatArgNameUnused(const std::string & type,const std::string & name,bool)73 inline std::string FormatArgNameUnused(const std::string& type, const std::string& name,
74 bool /*isOut*/) {
75 return type + " /*" + name + "*/";
76 }
77
FormatArgForCall(const std::string &,const std::string & name,bool isOut)78 inline std::string FormatArgForCall(const std::string& /*type*/, const std::string& name,
79 bool isOut) {
80 std::string reference_prefix = isOut ? "&" : "";
81 return reference_prefix + name;
82 }
83
FormatArgNameOnly(const std::string &,const std::string & name,bool)84 inline std::string FormatArgNameOnly(const std::string& /*type*/, const std::string& name,
85 bool /*isOut*/) {
86 return name;
87 }
88
89 // -> 'status (class::)name(type name, ...)' for a method
90 std::string NdkMethodDecl(const AidlTypenames& types, const AidlMethod& method,
91 const std::string& clazz = "");
92
93 } // namespace ndk
94 } // namespace aidl
95 } // namespace android
96