1 /* 2 * Copyright (C) 2016 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 LOCATION_H_ 18 #define LOCATION_H_ 19 20 #include <stdint.h> 21 #include <ostream> 22 #include <string> 23 24 // Mimics for yy::location and yy::position 25 namespace android { 26 27 struct Position { 28 Position() = default; 29 Position(std::string filename, size_t line, size_t column); 30 31 const std::string& filename() const; 32 33 size_t line() const; 34 size_t column() const; 35 36 static bool inSameFile(const Position& lhs, const Position& rhs); 37 38 // Precondition: inSameFile() 39 bool operator<(const Position& pos) const; 40 41 private: 42 // File name to which this position refers. 43 std::string mFilename; 44 // Current line number. 45 size_t mLine; 46 // Current column number. 47 size_t mColumn; 48 }; 49 50 std::ostream& operator<<(std::ostream& ostr, const Position& pos); 51 52 struct Location { 53 Location() = default; 54 Location(const Position& begin, const Position& end); 55 56 void setLocation(const Position& begin, const Position& end); 57 58 bool isValid() const; 59 const Position& begin() const; 60 const Position& end() const; 61 62 static Location startOf(const std::string& path); 63 64 static bool inSameFile(const Location& lhs, const Location& rhs); 65 static bool intersect(const Location& lhs, const Location& rhs); 66 67 // Precondition: inSameFile() && !intersect() 68 bool operator<(const Location& loc) const; 69 70 private: 71 bool mIsValid = false; 72 73 // Beginning of the located region. 74 Position mBegin; 75 // End of the located region. 76 Position mEnd; 77 }; 78 79 std::ostream& operator<<(std::ostream& ostr, const Location& loc); 80 81 } // namespace android 82 83 #endif // LOCATION_H_ 84
