cppcheck/lib/settings.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 Daniel Marjamäki and Cppcheck team.
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*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
#include "settings.h"
#include <algorithm>
#include <fstream>
#include <sstream>
#include <stdexcept>
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Settings::Settings()
: inconclusive(false)
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{
_debug = false;
_checkCodingStyle = false;
_errorsOnly = false;
_inlineSuppressions = false;
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_verbose = false;
_force = false;
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_xml = false;
_jobs = 1;
_exitCode = 0;
_showtime = false;
_append = "";
_terminate = false;
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}
Settings::Settings(const Settings &s)
: inconclusive(s.inconclusive)
{
*this = s;
}
// Constructor used in unit testing..
Settings::Settings(bool all)
: inconclusive(all)
{
Settings s;
*this = s; // This assigns all members except "inconclusive"
}
const Settings &Settings::operator=(const Settings & s)
{
if (&s == this)
return *this;
_debug = s._debug;
_checkCodingStyle = s._checkCodingStyle;
_errorsOnly = s._errorsOnly;
_inlineSuppressions = s._inlineSuppressions;
_verbose = s._verbose;
_force = s._force;
_xml = s._xml;
_jobs = s._jobs;
_exitCode = s._exitCode;
_showtime = s._showtime;
_append = s._append;
_terminate = s._terminate;
return *this;
}
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Settings::~Settings()
{
}
void Settings::autoDealloc(std::istream &istr)
{
std::string line;
while (getline(istr, line))
{
// Check if line has a valid classname..
if (line.empty())
continue;
// Add classname to list
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_autoDealloc.insert(line);
}
}
bool Settings::Suppressions::parseFile(std::istream &istr)
{
std::string line;
while (getline(istr, line))
{
// Skip empty lines
if (line.empty())
continue;
std::istringstream lineStream(line);
std::string id;
std::string file;
unsigned int lineNumber = 0;
if (std::getline(lineStream, id, ':'))
{
if (std::getline(lineStream, file, ':'))
{
lineStream >> lineNumber;
}
}
// We could perhaps check if the id is valid and return error if it is not
addSuppression(id, file, lineNumber);
}
return true;
}
void Settings::Suppressions::addSuppression(const std::string &errorId, const std::string &file, unsigned int line)
{
_suppressions[errorId][file].push_back(line);
_suppressions[errorId][file].sort();
}
bool Settings::Suppressions::isSuppressed(const std::string &errorId, const std::string &file, unsigned int line)
{
if (_suppressions.find(errorId) == _suppressions.end())
return false;
// Check are all errors of this type filtered out
if (_suppressions[errorId].find("") != _suppressions[errorId].end())
return true;
if (_suppressions[errorId].find(file) == _suppressions[errorId].end())
return false;
// Check should all errors in this file be filtered out
if (std::find(_suppressions[errorId][file].begin(), _suppressions[errorId][file].end(), 0) != _suppressions[errorId][file].end())
return true;
if (std::find(_suppressions[errorId][file].begin(), _suppressions[errorId][file].end(), line) == _suppressions[errorId][file].end())
return false;
return true;
}
void Settings::addEnabled(const std::string &str)
{
// Enable parameters may be comma separated...
if (str.find(",") != std::string::npos)
{
std::string::size_type prevPos = 0;
std::string::size_type pos = 0;
while ((pos = str.find(",", pos)) != std::string::npos)
{
if (pos == prevPos)
throw std::runtime_error("cppcheck: --enable parameter is empty");
addEnabled(str.substr(prevPos, pos - prevPos));
++pos;
prevPos = pos;
}
if (prevPos >= str.length())
throw std::runtime_error("cppcheck: --enable parameter is empty");
addEnabled(str.substr(prevPos));
return;
}
bool handled = false;
if (str == "all")
handled = _checkCodingStyle = true;
else if (str == "style")
handled = _checkCodingStyle = true;
std::set<std::string> id;
id.insert("exceptNew");
id.insert("exceptRealloc");
id.insert("unusedFunctions");
if (str == "all")
{
std::set<std::string>::const_iterator it;
for (it = id.begin(); it != id.end(); ++it)
_enabled[*it] = true;
}
else if (id.find(str) != id.end())
{
_enabled[str] = true;
}
else if (!handled)
{
if (str.empty())
throw std::runtime_error("cppcheck: --enable parameter is empty");
else
throw std::runtime_error("cppcheck: there is no --enable parameter with the name '" + str + "'");
}
}
bool Settings::isEnabled(const std::string &str) const
{
return bool(_enabled.find(str) != _enabled.end());
}
void Settings::addAutoAllocClass(const std::string &name)
{
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_autoDealloc.insert(name);
}
bool Settings::isAutoDealloc(const std::string &classname) const
{
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return (_autoDealloc.find(classname) != _autoDealloc.end());
}
void Settings::append(const std::string &filename)
{
_append = "\n";
std::ifstream fin(filename.c_str());
std::string line;
while (std::getline(fin, line))
{
_append += line + "\n";
}
}
std::string Settings::append() const
{
return _append;
}