cppcheck/lib/settings.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2019 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"
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#include "valueflow.h"
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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";
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Settings::Settings()
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: mEnabled(0),
checkConfiguration(false),
checkLibrary(false),
checkHeaders(true),
checkUnusedTemplates(false),
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debugSimplified(false),
debugnormal(false),
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debugwarnings(false),
debugtemplate(false),
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dump(false),
enforcedLang(None),
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exceptionHandling(false),
exitCode(0),
experimental(false),
force(false),
inconclusive(false),
verification(false),
debugVerification(false),
inlineSuppressions(false),
jobs(1),
jointSuppressionReport(false),
loadAverage(0),
maxConfigs(12),
maxCtuDepth(2),
preprocessOnly(false),
quiet(false),
relativePaths(false),
reportProgress(false),
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showtime(SHOWTIME_MODES::SHOWTIME_NONE),
verbose(false),
xml(false),
xml_version(2)
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{
}
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));
}
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if (str == "all") {
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mEnabled |= WARNING | STYLE | PERFORMANCE | PORTABILITY | INFORMATION | UNUSED_FUNCTION | MISSING_INCLUDE;
} else if (str == "warning") {
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mEnabled |= WARNING;
} else if (str == "style") {
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mEnabled |= STYLE;
} else if (str == "performance") {
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mEnabled |= PERFORMANCE;
} else if (str == "portability") {
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mEnabled |= PORTABILITY;
} else if (str == "information") {
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mEnabled |= INFORMATION | MISSING_INCLUDE;
} else if (str == "unusedFunction") {
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mEnabled |= UNUSED_FUNCTION;
} else if (str == "missingInclude") {
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mEnabled |= MISSING_INCLUDE;
}
#ifdef CHECK_INTERNAL
else if (str == "internal") {
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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;
}