1 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 2 // -*- mode: C++ -*- 3 // 4 // Copyright 2023 Google LLC 5 // 6 // Licensed under the Apache License v2.0 with LLVM Exceptions (the 7 // "License"); you may not use this file except in compliance with the 8 // License. You may obtain a copy of the License at 9 // 10 // https://llvm.org/LICENSE.txt 11 // 12 // Unless required by applicable law or agreed to in writing, software 13 // distributed under the License is distributed on an "AS IS" BASIS, 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 // See the License for the specific language governing permissions and 16 // limitations under the License. 17 // 18 // Author: Siddharth Nayyar 19 20 #ifndef STG_READER_OPTIONS_H_ 21 #define STG_READER_OPTIONS_H_ 22 23 #include <type_traits> 24 25 namespace stg { 26 27 struct ReadOptions { 28 enum Value { 29 TYPE_ROOTS = 1 << 0, 30 }; 31 32 using Bitset = std::underlying_type_t<Value>; 33 34 ReadOptions() = default; 35 template <typename... Values> ReadOptionsReadOptions36 explicit ReadOptions(Values... values) { 37 for (auto value : {values...}) { 38 Set(value); 39 } 40 } 41 SetReadOptions42 void Set(Value other) { 43 bitset |= static_cast<Bitset>(other); 44 } 45 TestReadOptions46 bool Test(Value other) const { 47 return static_cast<bool>(bitset & static_cast<Bitset>(other)); 48 } 49 50 Bitset bitset = 0; 51 }; 52 53 } // namespace stg 54 55 #endif // STG_READER_OPTIONS_H_ 56