1 //
2 // Copyright (C) 2019 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 <memory>
19 #include <set>
20 #include <string>
21 #include <vector>
22 
23 class SubprocessFlag;
24 
25 class FlagForwarder {
26   std::set<std::string> subprocesses_;
27   std::set<std::unique_ptr<SubprocessFlag>> flags_;
28 
29 public:
30  FlagForwarder(std::set<std::string> subprocesses,
31                const std::vector<std::vector<std::string>>& args);
32  ~FlagForwarder();
33  FlagForwarder(FlagForwarder&&) = default;
34  FlagForwarder(const FlagForwarder&) = delete;
35  FlagForwarder& operator=(FlagForwarder&&) = default;
36  FlagForwarder& operator=(const FlagForwarder&) = delete;
37 
38  void UpdateFlagDefaults() const;
39  std::vector<std::string> ArgvForSubprocess(
40      const std::string& subprocess,
41      const std::vector<std::string>& args = std::vector<std::string>()) const;
42 };
43