cppcheck/lib/settings.cpp

188 lines
6.1 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2019 Cppcheck team.
*
* 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/>.
*/
#include "settings.h"
#include "valueflow.h"
std::atomic<bool> Settings::mTerminated;
const char Settings::SafeChecks::XmlRootName[] = "safe-checks";
const char Settings::SafeChecks::XmlClasses[] = "class-public";
const char Settings::SafeChecks::XmlExternalFunctions[] = "external-functions";
const char Settings::SafeChecks::XmlInternalFunctions[] = "internal-functions";
const char Settings::SafeChecks::XmlExternalVariables[] = "external-variables";
Settings::Settings()
: mEnabled(0),
checkConfiguration(false),
checkLibrary(false),
checkHeaders(true),
checkUnusedTemplates(false),
debugSimplified(false),
debugnormal(false),
debugwarnings(false),
debugtemplate(false),
dump(false),
enforcedLang(None),
exceptionHandling(false),
exitCode(0),
experimental(false),
force(false),
inconclusive(false),
verification(false),
debugVerification(false),
inlineSuppressions(false),
jobs(1),
jointSuppressionReport(false),
loadAverage(0),
maxConfigs(12),
checkAllConfigurations(true),
maxCtuDepth(2),
preprocessOnly(false),
quiet(false),
relativePaths(false),
reportProgress(false),
showtime(SHOWTIME_MODES::SHOWTIME_NONE),
verbose(false),
xml(false),
xml_version(2)
{
}
std::string 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)
return std::string("cppcheck: --enable parameter is empty");
const std::string errmsg(addEnabled(str.substr(prevPos, pos - prevPos)));
if (!errmsg.empty())
return errmsg;
++pos;
prevPos = pos;
}
if (prevPos >= str.length())
return std::string("cppcheck: --enable parameter is empty");
return addEnabled(str.substr(prevPos));
}
if (str == "all") {
mEnabled |= WARNING | STYLE | PERFORMANCE | PORTABILITY | INFORMATION | UNUSED_FUNCTION | MISSING_INCLUDE;
} else if (str == "warning") {
mEnabled |= WARNING;
} else if (str == "style") {
mEnabled |= STYLE;
} else if (str == "performance") {
mEnabled |= PERFORMANCE;
} else if (str == "portability") {
mEnabled |= PORTABILITY;
} else if (str == "information") {
mEnabled |= INFORMATION | MISSING_INCLUDE;
} else if (str == "unusedFunction") {
mEnabled |= UNUSED_FUNCTION;
} else if (str == "missingInclude") {
mEnabled |= MISSING_INCLUDE;
}
#ifdef CHECK_INTERNAL
else if (str == "internal") {
mEnabled |= INTERNAL;
}
#endif
else {
if (str.empty())
return std::string("cppcheck: --enable parameter is empty");
else
return std::string("cppcheck: there is no --enable parameter with the name '" + str + "'");
}
return std::string();
}
bool Settings::isEnabled(Severity::SeverityType severity) const
{
switch (severity) {
case Severity::none:
return true;
case Severity::error:
return true;
case Severity::warning:
return isEnabled(WARNING);
case Severity::style:
return isEnabled(STYLE);
case Severity::performance:
return isEnabled(PERFORMANCE);
case Severity::portability:
return isEnabled(PORTABILITY);
case Severity::information:
return isEnabled(INFORMATION);
case Severity::debug:
return false;
default:
return false;
}
}
bool Settings::isEnabled(const ValueFlow::Value *value, bool inconclusiveCheck) const
{
if (!isEnabled(Settings::WARNING) && (value->condition || value->defaultArg))
return false;
if (!inconclusive && (inconclusiveCheck || value->isInconclusive()))
return false;
return true;
}
std::vector<Settings::Diff> Settings::loadDiffFile(std::istream &istr)
{
std::vector<Settings::Diff> ret;
std::string line;
std::string filename;
while (std::getline(istr, line)) {
if (line.compare(0, 11, "diff --git ") == 0) {
std::string::size_type pos = line.rfind(" b/");
if (pos == std::string::npos)
continue;
filename = line.substr(pos+3);
}
if (line.compare(0,4,"@@ -") == 0) {
std::string::size_type pos1 = line.find(" ",4);
if (pos1 == std::string::npos)
continue;
std::string::size_type pos2 = line.find(" ",pos1 + 1);
if (pos2 == std::string::npos || pos2 < pos1+3)
continue;
if (line[pos1+1] != '+')
continue;
std::string::size_type posComma = line.find(",", pos1);
if (posComma > pos2)
continue;
std::string line1 = line.substr(pos1 + 2, posComma - pos1 - 2);
std::string line2 = line.substr(posComma+1, pos2 - posComma - 1);
Diff diff;
diff.filename = filename;
diff.fromLine = std::atoi(line1.c_str());
diff.toLine = std::atoi(line1.c_str()) + std::atoi(line2.c_str());
ret.push_back(diff);
}
}
return ret;
}