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 "Location.h"
18
19 #include <android-base/logging.h>
20 #include <tuple>
21
22 namespace android {
23
Position(std::string filename,size_t line,size_t column)24 Position::Position(std::string filename, size_t line, size_t column)
25 : mFilename(filename), mLine(line), mColumn(column) {}
26
filename() const27 const std::string& Position::filename() const {
28 return mFilename;
29 }
30
line() const31 size_t Position::line() const {
32 return mLine;
33 }
34
column() const35 size_t Position::column() const {
36 return mColumn;
37 }
38
inSameFile(const Position & lhs,const Position & rhs)39 bool Position::inSameFile(const Position& lhs, const Position& rhs) {
40 return lhs.mFilename == rhs.mFilename;
41 }
42
operator <(const Position & pos) const43 bool Position::operator<(const Position& pos) const {
44 return std::tie(mFilename, mLine, mColumn) < std::tie(pos.mFilename, pos.mLine, pos.mColumn);
45 }
46
operator <<(std::ostream & ostr,const Position & pos)47 std::ostream& operator<<(std::ostream& ostr, const Position& pos) {
48 if (!pos.filename().empty()) {
49 ostr << pos.filename() << ":";
50 }
51 return ostr << pos.line() << "." << pos.column();
52 }
53
54 ////////////////////////////////////////
55
Location(const Position & begin,const Position & end)56 Location::Location(const Position& begin, const Position& end)
57 : mIsValid(true), mBegin(begin), mEnd(end) {}
58
setLocation(const Position & begin,const Position & end)59 void Location::setLocation(const Position& begin, const Position& end) {
60 mIsValid = true;
61 mBegin = begin;
62 mEnd = end;
63 }
64
isValid() const65 bool Location::isValid() const {
66 return mIsValid;
67 }
68
begin() const69 const Position& Location::begin() const {
70 return mBegin;
71 }
72
end() const73 const Position& Location::end() const {
74 return mEnd;
75 }
76
startOf(const std::string & path)77 Location Location::startOf(const std::string& path) {
78 return Location(Position(path, 1, 1), Position(path, 1, 1));
79 }
80
inSameFile(const Location & lhs,const Location & rhs)81 bool Location::inSameFile(const Location& lhs, const Location& rhs) {
82 return Position::inSameFile(lhs.mBegin, rhs.mBegin);
83 }
84
intersect(const Location & lhs,const Location & rhs)85 bool Location::intersect(const Location& lhs, const Location& rhs) {
86 if (!inSameFile(lhs, rhs)) return false;
87 return !(lhs.mEnd < rhs.mBegin || rhs.mEnd < lhs.mBegin);
88 }
89
operator <(const Location & loc) const90 bool Location::operator<(const Location& loc) const {
91 return std::tie(mBegin, mEnd) < std::tie(loc.mBegin, loc.mEnd);
92 }
93
operator <<(std::ostream & ostr,const Location & loc)94 std::ostream& operator<<(std::ostream& ostr, const Location& loc) {
95 Position last = Position(loc.end().filename(), loc.end().line(),
96 std::max<size_t>(1u, loc.end().column() - 1));
97 ostr << loc.begin();
98 if (loc.begin().filename() != last.filename()) {
99 ostr << "-" << last;
100 } else if (loc.begin().line() != last.line()) {
101 ostr << "-" << last.line() << "." << last.column();
102 } else if (loc.begin().column() != last.column()) {
103 ostr << "-" << last.column();
104 }
105 return ostr;
106 }
107
108 } // namespace android
109