solidity/liblangutil/SourceLocation.cpp

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/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
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#include <liblangutil/Exceptions.h>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string.hpp>
#include <iostream>
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using namespace solidity;
using namespace solidity::langutil;
using namespace std;
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SourceLocation solidity::langutil::parseSourceLocation(string const& _input, vector<shared_ptr<string const>> const& _sourceNames)
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{
// Expected input: "start:length:sourceindex"
enum SrcElem: size_t { Start, Length, Index };
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vector<string> pos;
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boost::algorithm::split(pos, _input, boost::is_any_of(":"));
solAssert(pos.size() == 3, "SourceLocation string must have 3 colon separated numeric fields.");
auto const sourceIndex = stoi(pos[Index]);
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astAssert(
sourceIndex == -1 || (0 <= sourceIndex && static_cast<size_t>(sourceIndex) < _sourceNames.size()),
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"'src'-field ill-formatted or src-index too high"
);
int start = stoi(pos[Start]);
int end = start + stoi(pos[Length]);
SourceLocation result{start, end, {}};
if (sourceIndex != -1)
result.sourceName = _sourceNames.at(static_cast<size_t>(sourceIndex));
return result;
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}
std::ostream& solidity::langutil::operator<<(std::ostream& _out, SourceLocation const& _location)
{
if (!_location.isValid())
return _out << "NO_LOCATION_SPECIFIED";
if (_location.sourceName)
_out << *_location.sourceName;
_out << "[" << _location.start << "," << _location.end << "]";
return _out;
}