Exemple #1
0
QErrorPathItem::QErrorPathItem(const ErrorLogger::ErrorMessage::FileLocation &loc)
    : file(QString::fromStdString(loc.getfile(false)))
    , line(loc.line)
    , col(loc.col)
    , info(QString::fromStdString(loc.getinfo()))
{
}
 void FileLocationSetFile()
 {
     ErrorLogger::ErrorMessage::FileLocation loc;
     loc.setfile("foo.cpp");
     ASSERT_EQUALS("foo.cpp", loc.getfile());
     ASSERT_EQUALS(0, loc.line);
 }
Exemple #3
0
unsigned int CppCheck::checkFile(const std::string& filename, const std::string &cfgname, std::istream& fileStream)
{
    mExitCode = 0;
    mSuppressInternalErrorFound = false;

    // only show debug warnings for accepted C/C++ source files
    if (!Path::acceptFile(filename))
        mSettings.debugwarnings = false;

    if (mSettings.terminated())
        return mExitCode;

    if (!mSettings.quiet) {
        std::string fixedpath = Path::simplifyPath(filename);
        fixedpath = Path::toNativeSeparators(fixedpath);
        mErrorLogger.reportOut(std::string("Checking ") + fixedpath + ' ' + cfgname + std::string("..."));

        if (mSettings.verbose) {
            mErrorLogger.reportOut("Defines:" + mSettings.userDefines);
            std::string undefs;
            for (const std::string& U : mSettings.userUndefs) {
                if (!undefs.empty())
                    undefs += ';';
                undefs += ' ' + U;
            }
            mErrorLogger.reportOut("Undefines:" + undefs);
            std::string includePaths;
            for (const std::string &I : mSettings.includePaths)
                includePaths += " -I" + I;
            mErrorLogger.reportOut("Includes:" + includePaths);
            mErrorLogger.reportOut(std::string("Platform:") + mSettings.platformString());
        }
    }

    if (plistFile.is_open()) {
        plistFile << ErrorLogger::plistFooter();
        plistFile.close();
    }

    CheckUnusedFunctions checkUnusedFunctions(nullptr, nullptr, nullptr);

    bool internalErrorFound(false);
    try {
        Preprocessor preprocessor(mSettings, this);
        std::set<std::string> configurations;

        simplecpp::OutputList outputList;
        std::vector<std::string> files;
        simplecpp::TokenList tokens1(fileStream, files, filename, &outputList);

        // If there is a syntax error, report it and stop
        for (simplecpp::OutputList::const_iterator it = outputList.begin(); it != outputList.end(); ++it) {
            bool err;
            switch (it->type) {
            case simplecpp::Output::ERROR:
            case simplecpp::Output::INCLUDE_NESTED_TOO_DEEPLY:
            case simplecpp::Output::SYNTAX_ERROR:
            case simplecpp::Output::UNHANDLED_CHAR_ERROR:
                err = true;
                break;
            case simplecpp::Output::WARNING:
            case simplecpp::Output::MISSING_HEADER:
            case simplecpp::Output::PORTABILITY_BACKSLASH:
                err = false;
                break;
            };

            if (err) {
                const ErrorLogger::ErrorMessage::FileLocation loc1(it->location.file(), it->location.line);
                std::list<ErrorLogger::ErrorMessage::FileLocation> callstack(1, loc1);

                ErrorLogger::ErrorMessage errmsg(callstack,
                                                 "",
                                                 Severity::error,
                                                 it->msg,
                                                 "syntaxError",
                                                 false);
                reportErr(errmsg);
                return mExitCode;
            }
        }

        preprocessor.loadFiles(tokens1, files);

        if (!mSettings.plistOutput.empty()) {
            std::string filename2;
            if (filename.find('/') != std::string::npos)
                filename2 = filename.substr(filename.rfind('/') + 1);
            else
                filename2 = filename;
            filename2 = mSettings.plistOutput + filename2.substr(0, filename2.find('.')) + ".plist";
            plistFile.open(filename2);
            plistFile << ErrorLogger::plistHeader(version(), files);
        }

        // write dump file xml prolog
        std::ofstream fdump;
        if (mSettings.dump) {
            const std::string dumpfile(mSettings.dumpFile.empty() ? (filename + ".dump") : mSettings.dumpFile);
            fdump.open(dumpfile);
            if (fdump.is_open()) {
                fdump << "<?xml version=\"1.0\"?>" << std::endl;
                fdump << "<dumps>" << std::endl;
                fdump << "  <platform"
                      << " name=\"" << mSettings.platformString() << '\"'
                      << " char_bit=\"" << mSettings.char_bit << '\"'
                      << " short_bit=\"" << mSettings.short_bit << '\"'
                      << " int_bit=\"" << mSettings.int_bit << '\"'
                      << " long_bit=\"" << mSettings.long_bit << '\"'
                      << " long_long_bit=\"" << mSettings.long_long_bit << '\"'
                      << " pointer_bit=\"" << (mSettings.sizeof_pointer * mSettings.char_bit) << '\"'
                      << "/>\n";
                fdump << "  <rawtokens>" << std::endl;
                for (unsigned int i = 0; i < files.size(); ++i)
                    fdump << "    <file index=\"" << i << "\" name=\"" << ErrorLogger::toxml(files[i]) << "\"/>" << std::endl;
                for (const simplecpp::Token *tok = tokens1.cfront(); tok; tok = tok->next) {
                    fdump << "    <tok "
                          << "fileIndex=\"" << tok->location.fileIndex << "\" "
                          << "linenr=\"" << tok->location.line << "\" "
                          << "str=\"" << ErrorLogger::toxml(tok->str()) << "\""
                          << "/>" << std::endl;
                }
                fdump << "  </rawtokens>" << std::endl;
            }
        }

        // Parse comments and then remove them
        preprocessor.inlineSuppressions(tokens1);
        if (mSettings.dump && fdump.is_open()) {
            mSettings.nomsg.dump(fdump);
        }
        tokens1.removeComments();
        preprocessor.removeComments();

        if (!mSettings.buildDir.empty()) {
            // Get toolinfo
            std::ostringstream toolinfo;
            toolinfo << CPPCHECK_VERSION_STRING;
            toolinfo << (mSettings.isEnabled(Settings::WARNING) ? 'w' : ' ');
            toolinfo << (mSettings.isEnabled(Settings::STYLE) ? 's' : ' ');
            toolinfo << (mSettings.isEnabled(Settings::PERFORMANCE) ? 'p' : ' ');
            toolinfo << (mSettings.isEnabled(Settings::PORTABILITY) ? 'p' : ' ');
            toolinfo << (mSettings.isEnabled(Settings::INFORMATION) ? 'i' : ' ');
            toolinfo << mSettings.userDefines;
            mSettings.nomsg.dump(toolinfo);

            // Calculate checksum so it can be compared with old checksum / future checksums
            const unsigned int checksum = preprocessor.calculateChecksum(tokens1, toolinfo.str());
            std::list<ErrorLogger::ErrorMessage> errors;
            if (!mAnalyzerInformation.analyzeFile(mSettings.buildDir, filename, cfgname, checksum, &errors)) {
                while (!errors.empty()) {
                    reportErr(errors.front());
                    errors.pop_front();
                }
                return mExitCode;  // known results => no need to reanalyze file
            }
        }

        // Get directives
        preprocessor.setDirectives(tokens1);
        preprocessor.simplifyPragmaAsm(&tokens1);

        preprocessor.setPlatformInfo(&tokens1);

        // Get configurations..
        if (mSettings.userDefines.empty() || mSettings.force) {
            Timer t("Preprocessor::getConfigs", mSettings.showtime, &S_timerResults);
            configurations = preprocessor.getConfigs(tokens1);
        } else {
            configurations.insert(mSettings.userDefines);
        }

        if (mSettings.checkConfiguration) {
            for (const std::string &config : configurations)
                (void)preprocessor.getcode(tokens1, config, files, true);

            return 0;
        }

        // Run define rules on raw code
        for (const Settings::Rule &rule : mSettings.rules) {
            if (rule.tokenlist != "define")
                continue;

            std::string code;
            const std::list<Directive> &directives = preprocessor.getDirectives();
            for (const Directive &dir : directives) {
                if (dir.str.compare(0,8,"#define ") == 0)
                    code += "#line " + MathLib::toString(dir.linenr) + " \"" + dir.file + "\"\n" + dir.str + '\n';
            }
            Tokenizer tokenizer2(&mSettings, this);
            std::istringstream istr2(code);
            tokenizer2.list.createTokens(istr2);
            executeRules("define", tokenizer2);
            break;
        }

        if (!mSettings.force && configurations.size() > mSettings.maxConfigs) {
            if (mSettings.isEnabled(Settings::INFORMATION)) {
                tooManyConfigsError(Path::toNativeSeparators(filename),configurations.size());
            } else {
                mTooManyConfigs = true;
            }
        }

        std::set<unsigned long long> checksums;
        unsigned int checkCount = 0;
        bool hasValidConfig = false;
        std::list<std::string> configurationError;
        for (std::set<std::string>::const_iterator it = configurations.begin(); it != configurations.end(); ++it) {
            // bail out if terminated
            if (mSettings.terminated())
                break;

            // Check only a few configurations (default 12), after that bail out, unless --force
            // was used.
            if (!mSettings.force && ++checkCount > mSettings.maxConfigs)
                break;

            mCurrentConfig = *it;

            if (!mSettings.userDefines.empty()) {
                if (!mCurrentConfig.empty())
                    mCurrentConfig = ";" + mCurrentConfig;
                mCurrentConfig = mSettings.userDefines + mCurrentConfig;
            }

            if (mSettings.preprocessOnly) {
                Timer t("Preprocessor::getcode", mSettings.showtime, &S_timerResults);
                std::string codeWithoutCfg = preprocessor.getcode(tokens1, mCurrentConfig, files, true);
                t.Stop();

                if (codeWithoutCfg.compare(0,5,"#file") == 0)
                    codeWithoutCfg.insert(0U, "//");
                std::string::size_type pos = 0;
                while ((pos = codeWithoutCfg.find("\n#file",pos)) != std::string::npos)
                    codeWithoutCfg.insert(pos+1U, "//");
                pos = 0;
                while ((pos = codeWithoutCfg.find("\n#endfile",pos)) != std::string::npos)
                    codeWithoutCfg.insert(pos+1U, "//");
                pos = 0;
                while ((pos = codeWithoutCfg.find(Preprocessor::macroChar,pos)) != std::string::npos)
                    codeWithoutCfg[pos] = ' ';
                reportOut(codeWithoutCfg);
                continue;
            }

            Tokenizer mTokenizer(&mSettings, this);
            if (mSettings.showtime != SHOWTIME_NONE)
                mTokenizer.setTimerResults(&S_timerResults);

            try {
                bool result;

                // Create tokens, skip rest of iteration if failed
                Timer timer("Tokenizer::createTokens", mSettings.showtime, &S_timerResults);
                const simplecpp::TokenList &tokensP = preprocessor.preprocess(tokens1, mCurrentConfig, files, true);
                mTokenizer.createTokens(&tokensP);
                timer.Stop();
                hasValidConfig = true;

                // If only errors are printed, print filename after the check
                if (!mSettings.quiet && (!mCurrentConfig.empty() || it != configurations.begin())) {
                    std::string fixedpath = Path::simplifyPath(filename);
                    fixedpath = Path::toNativeSeparators(fixedpath);
                    mErrorLogger.reportOut("Checking " + fixedpath + ": " + mCurrentConfig + "...");
                }

                if (tokensP.empty())
                    continue;

                // skip rest of iteration if just checking configuration
                if (mSettings.checkConfiguration)
                    continue;

                // Check raw tokens
                checkRawTokens(mTokenizer);

                // Simplify tokens into normal form, skip rest of iteration if failed
                Timer timer2("Tokenizer::simplifyTokens1", mSettings.showtime, &S_timerResults);
                result = mTokenizer.simplifyTokens1(mCurrentConfig);
                timer2.Stop();
                if (!result)
                    continue;

                // dump xml if --dump
                if (mSettings.dump && fdump.is_open()) {
                    fdump << "<dump cfg=\"" << ErrorLogger::toxml(mCurrentConfig) << "\">" << std::endl;
                    preprocessor.dump(fdump);
                    mTokenizer.dump(fdump);
                    fdump << "</dump>" << std::endl;
                }

                // Skip if we already met the same simplified token list
                if (mSettings.force || mSettings.maxConfigs > 1) {
                    const unsigned long long checksum = mTokenizer.list.calculateChecksum();
                    if (checksums.find(checksum) != checksums.end()) {
                        if (mSettings.debugwarnings)
                            purgedConfigurationMessage(filename, mCurrentConfig);
                        continue;
                    }
                    checksums.insert(checksum);
                }

                // Check normal tokens
                checkNormalTokens(mTokenizer);

                // Analyze info..
                if (!mSettings.buildDir.empty())
                    checkUnusedFunctions.parseTokens(mTokenizer, filename.c_str(), &mSettings);

                // simplify more if required, skip rest of iteration if failed
                if (mSimplify) {
                    // if further simplification fails then skip rest of iteration
                    Timer timer3("Tokenizer::simplifyTokenList2", mSettings.showtime, &S_timerResults);
                    result = mTokenizer.simplifyTokenList2();
                    timer3.Stop();
                    if (!result)
                        continue;

                    // Check simplified tokens
                    checkSimplifiedTokens(mTokenizer);
                }

            } catch (const simplecpp::Output &o) {
                // #error etc during preprocessing
                configurationError.push_back((mCurrentConfig.empty() ? "\'\'" : mCurrentConfig) + " : [" + o.location.file() + ':' + MathLib::toString(o.location.line) + "] " + o.msg);
                --checkCount; // don't count invalid configurations
                continue;

            } catch (const InternalError &e) {
                std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
                ErrorLogger::ErrorMessage::FileLocation loc;
                if (e.token) {
                    loc.line = e.token->linenr();
                    const std::string fixedpath = Path::toNativeSeparators(mTokenizer.list.file(e.token));
                    loc.setfile(fixedpath);
                } else {
                    ErrorLogger::ErrorMessage::FileLocation loc2;
                    loc2.setfile(Path::toNativeSeparators(filename));
                    locationList.push_back(loc2);
                    loc.setfile(mTokenizer.list.getSourceFilePath());
                }
                locationList.push_back(loc);
                ErrorLogger::ErrorMessage errmsg(locationList,
                                                 mTokenizer.list.getSourceFilePath(),
                                                 Severity::error,
                                                 e.errorMessage,
                                                 e.id,
                                                 false);

                reportErr(errmsg);
                if (!mSuppressInternalErrorFound)
                    internalErrorFound = true;
            }
        }

        if (!hasValidConfig && configurations.size() > 1 && mSettings.isEnabled(Settings::INFORMATION)) {
            std::string msg;
            msg = "This file is not analyzed. Cppcheck failed to extract a valid configuration. Use -v for more details.";
            msg += "\nThis file is not analyzed. Cppcheck failed to extract a valid configuration. The tested configurations have these preprocessor errors:";
            for (const std::string &s : configurationError)
                msg += '\n' + s;

            std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
            ErrorLogger::ErrorMessage::FileLocation loc;
            loc.setfile(Path::toNativeSeparators(filename));
            locationList.push_back(loc);
            ErrorLogger::ErrorMessage errmsg(locationList,
                                             loc.getfile(),
                                             Severity::information,
                                             msg,
                                             "noValidConfiguration",
                                             false);
            reportErr(errmsg);
        }

        // dumped all configs, close root </dumps> element now
        if (mSettings.dump && fdump.is_open())
            fdump << "</dumps>" << std::endl;

    } catch (const std::runtime_error &e) {
        internalError(filename, e.what());
    } catch (const std::bad_alloc &e) {
        internalError(filename, e.what());
    } catch (const InternalError &e) {
        internalError(filename, e.errorMessage);
        mExitCode=1; // e.g. reflect a syntax error
    }

    mAnalyzerInformation.setFileInfo("CheckUnusedFunctions", checkUnusedFunctions.analyzerInfo());
    mAnalyzerInformation.close();

    // In jointSuppressionReport mode, unmatched suppressions are
    // collected after all files are processed
    if (!mSettings.jointSuppressionReport && (mSettings.isEnabled(Settings::INFORMATION) || mSettings.checkConfiguration)) {
        reportUnmatchedSuppressions(mSettings.nomsg.getUnmatchedLocalSuppressions(filename, isUnusedFunctionCheckEnabled()));
    }

    mErrorList.clear();
    if (internalErrorFound && (mExitCode==0)) {
        mExitCode = 1;
    }

    return mExitCode;
}
 void FileLocationDefaults() const {
     ErrorLogger::ErrorMessage::FileLocation loc;
     ASSERT_EQUALS("", loc.getfile());
     ASSERT_EQUALS(0, loc.line);
 }