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      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 #include "HidlTypeAssertion.h"
     18 
     19 #include <hidl-util/Formatter.h>
     20 
     21 #include <string>
     22 #include <vector>
     23 
     24 namespace android {
     25 
     26 typedef std::vector<std::pair<std::string, size_t>> Registry;
     27 static Registry &registry() {
     28     static Registry sRegistry;
     29     return sRegistry;
     30 }
     31 
     32 HidlTypeAssertion::HidlTypeAssertion(const char *name, size_t size)
     33     : mSize(size) {
     34     registry().push_back(std::make_pair(name, size));
     35 }
     36 
     37 size_t HidlTypeAssertion::size() const {
     38     return mSize;
     39 }
     40 
     41 void HidlTypeAssertion::EmitAll(Formatter &out) {
     42     std::sort(
     43             registry().begin(),
     44             registry().end(),
     45             [](const auto &a, const auto &b) {
     46                 return a.first < b.first;
     47             });
     48 
     49     for (auto entry : registry()) {
     50         out << "static_assert(sizeof(::android::hardware::"
     51             << entry.first
     52             << ") == "
     53             << entry.second
     54             << ", \"wrong size\");\n";
     55     }
     56 }
     57 
     58 }  // namespace android
     59 
     60