1 /*
2  * Copyright (C) 2017 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 
17 #ifndef HIDL_TYPE_ASSERTIONS_H_
18 
19 #define HIDL_TYPE_ASSERTIONS_H_
20 
21 #include <android-base/macros.h>
22 
23 namespace android {
24 
25 struct Formatter;
26 
27 // Declare a HidlTypeAssertion at static scope to enforce a size requirement
28 // on a type (assumed to be declared in namespace ::android::hardware).
29 // This will cause the C++ backend of hidl-gen to emit the appropriate
30 // static_assert(...) statements at the end of FooAll.cpp.
31 struct HidlTypeAssertion {
32     HidlTypeAssertion(const char *name, size_t size);
33 
34     size_t size() const;
35 
36     static void EmitAll(Formatter &out);
37 
38 private:
39     size_t mSize;
40 
41     DISALLOW_COPY_AND_ASSIGN(HidlTypeAssertion);
42 };
43 
44 }  // namespace android
45 
46 #endif  // HIDL_TYPE_ASSERTIONS_H_
47