Gav Wood
10 years ago
13 changed files with 258 additions and 93 deletions
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/*
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This file is part of cpp-ethereum. |
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cpp-ethereum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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cpp-ethereum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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/**
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* @author Christian <c@ethdev.com> |
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* @date 2014 |
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* Formatting functions for errors referencing positions and locations in the source. |
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*/ |
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#include <libsolidity/SourceReferenceFormatter.h> |
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#include <libsolidity/Scanner.h> |
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#include <libsolidity/Exceptions.h> |
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namespace dev |
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{ |
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namespace solidity |
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{ |
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void SourceReferenceFormatter::printSourceLocation(std::ostream& _stream, |
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Location const& _location, |
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Scanner const& _scanner) |
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{ |
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int startLine; |
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int startColumn; |
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std::tie(startLine, startColumn) = _scanner.translatePositionToLineColumn(_location.start); |
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_stream << "starting at line " << (startLine + 1) << ", column " << (startColumn + 1) << "\n"; |
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int endLine; |
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int endColumn; |
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std::tie(endLine, endColumn) = _scanner.translatePositionToLineColumn(_location.end); |
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if (startLine == endLine) |
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{ |
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_stream << _scanner.getLineAtPosition(_location.start) << std::endl |
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<< std::string(startColumn, ' ') << "^"; |
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if (endColumn > startColumn + 2) |
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_stream << std::string(endColumn - startColumn - 2, '-'); |
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if (endColumn > startColumn + 1) |
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_stream << "^"; |
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_stream << std::endl; |
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} |
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else |
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_stream << _scanner.getLineAtPosition(_location.start) << std::endl |
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<< std::string(startColumn, ' ') << "^\n" |
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<< "Spanning multiple lines.\n"; |
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} |
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void SourceReferenceFormatter::printSourcePosition(std::ostream& _stream, |
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int _position, |
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const Scanner& _scanner) |
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{ |
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int line; |
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int column; |
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std::tie(line, column) = _scanner.translatePositionToLineColumn(_position); |
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_stream << "at line " << (line + 1) << ", column " << (column + 1) << std::endl |
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<< _scanner.getLineAtPosition(_position) << std::endl |
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<< std::string(column, ' ') << "^" << std::endl; |
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} |
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void SourceReferenceFormatter::printExceptionInformation(std::ostream& _stream, |
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Exception const& _exception, |
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std::string const& _name, |
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Scanner const& _scanner) |
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{ |
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_stream << _name; |
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if (std::string const* description = boost::get_error_info<errinfo_comment>(_exception)) |
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_stream << ": " << *description; |
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if (int const* position = boost::get_error_info<errinfo_sourcePosition>(_exception)) |
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{ |
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_stream << " "; |
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printSourcePosition(_stream, *position, _scanner); |
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} |
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if (Location const* location = boost::get_error_info<errinfo_sourceLocation>(_exception)) |
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{ |
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_stream << " "; |
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printSourceLocation(_stream, *location, _scanner); |
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} |
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} |
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} |
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} |
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@ -0,0 +1,48 @@ |
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/*
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This file is part of cpp-ethereum. |
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|
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cpp-ethereum is free software: you can redistribute it and/or modify |
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|
it under the terms of the GNU General Public License as published by |
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|
the Free Software Foundation, either version 3 of the License, or |
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|
(at your option) any later version. |
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|
|
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|
cpp-ethereum is distributed in the hope that it will be useful, |
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|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
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|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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|
GNU General Public License for more details. |
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|
|
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|
You should have received a copy of the GNU General Public License |
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|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
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*/ |
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/**
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* @author Christian <c@ethdev.com> |
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* @date 2014 |
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* Formatting functions for errors referencing positions and locations in the source. |
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*/ |
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#pragma once |
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#include <ostream> |
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#include <libsolidity/BaseTypes.h> |
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namespace dev |
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{ |
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class Exception; // forward
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namespace solidity |
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{ |
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class Scanner; // forward
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struct SourceReferenceFormatter |
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{ |
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public: |
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static void printSourceLocation(std::ostream& _stream, Location const& _location, Scanner const& _scanner); |
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static void printSourcePosition(std::ostream& _stream, int _position, Scanner const& _scanner); |
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static void printExceptionInformation(std::ostream& _stream, Exception const& _exception, |
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std::string const& _name, Scanner const& _scanner); |
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}; |
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} |
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} |
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