mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*
|
|
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/>.
|
|
*/
|
|
#include <liblangutil/SourceReferenceExtractor.h>
|
|
#include <liblangutil/CharStream.h>
|
|
#include <liblangutil/Exceptions.h>
|
|
|
|
#include <cmath>
|
|
#include <iomanip>
|
|
|
|
using namespace std;
|
|
using namespace solidity;
|
|
using namespace solidity::langutil;
|
|
|
|
SourceReferenceExtractor::Message SourceReferenceExtractor::extract(util::Exception const& _exception, string _category)
|
|
{
|
|
SourceLocation const* location = boost::get_error_info<errinfo_sourceLocation>(_exception);
|
|
|
|
string const* message = boost::get_error_info<util::errinfo_comment>(_exception);
|
|
SourceReference primary = extract(location, message ? *message : "");
|
|
|
|
std::vector<SourceReference> secondary;
|
|
auto secondaryLocation = boost::get_error_info<errinfo_secondarySourceLocation>(_exception);
|
|
if (secondaryLocation && !secondaryLocation->infos.empty())
|
|
for (auto const& info: secondaryLocation->infos)
|
|
secondary.emplace_back(extract(&info.second, info.first));
|
|
|
|
return Message{std::move(primary), _category, std::move(secondary)};
|
|
}
|
|
|
|
SourceReference SourceReferenceExtractor::extract(SourceLocation const* _location, std::string message)
|
|
{
|
|
if (!_location || !_location->source.get()) // Nothing we can extract here
|
|
return SourceReference::MessageOnly(std::move(message));
|
|
|
|
if (!_location->hasText()) // No source text, so we can only extract the source name
|
|
return SourceReference::MessageOnly(std::move(message), _location->source->name());
|
|
|
|
shared_ptr<CharStream> const& source = _location->source;
|
|
|
|
LineColumn const interest = source->translatePositionToLineColumn(_location->start);
|
|
LineColumn start = interest;
|
|
LineColumn end = source->translatePositionToLineColumn(_location->end);
|
|
bool const isMultiline = start.line != end.line;
|
|
|
|
string line = source->lineAtPosition(_location->start);
|
|
|
|
int locationLength =
|
|
isMultiline ?
|
|
int(line.length()) - start.column :
|
|
end.column - start.column;
|
|
|
|
if (locationLength > 150)
|
|
{
|
|
auto const lhs = static_cast<size_t>(start.column) + 35;
|
|
string::size_type const rhs = (isMultiline ? line.length() : static_cast<size_t>(end.column)) - 35;
|
|
line = line.substr(0, lhs) + " ... " + line.substr(rhs);
|
|
end.column = start.column + 75;
|
|
locationLength = 75;
|
|
}
|
|
|
|
if (line.length() > 150)
|
|
{
|
|
int const len = static_cast<int>(line.length());
|
|
line = line.substr(
|
|
static_cast<size_t>(max(0, start.column - 35)),
|
|
static_cast<size_t>(min(start.column, 35)) + static_cast<size_t>(
|
|
min(locationLength + 35,len - start.column)
|
|
)
|
|
);
|
|
if (start.column + locationLength + 35 < len)
|
|
line += " ...";
|
|
if (start.column > 35)
|
|
{
|
|
line = " ... " + line;
|
|
start.column = 40;
|
|
}
|
|
end.column = start.column + static_cast<int>(locationLength);
|
|
}
|
|
|
|
return SourceReference{
|
|
std::move(message),
|
|
source->name(),
|
|
interest,
|
|
isMultiline,
|
|
line,
|
|
start.column,
|
|
end.column,
|
|
};
|
|
}
|