Beispiel #1
0
unsigned int CppCheck::processFile(const std::string& filename, std::istream& fileStream)
{
    exitcode = 0;

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

    if (_settings.terminated())
        return exitcode;

    if (_settings.quiet == false) {
        std::string fixedpath = Path::simplifyPath(filename);
        fixedpath = Path::toNativeSeparators(fixedpath);
        _errorLogger.reportOut(std::string("Checking ") + fixedpath + std::string("..."));
    }

    bool internalErrorFound(false);
    try {
        Preprocessor preprocessor(_settings, this);
        std::list<std::string> configurations;
        std::string filedata;

        {
            Timer t("Preprocessor::preprocess", _settings.showtime, &S_timerResults);
            preprocessor.preprocess(fileStream, filedata, configurations, filename, _settings.includePaths);
        }

        if (_settings.checkConfiguration) {
            return 0;
        }

        // Run define rules on raw code
        for (std::list<Settings::Rule>::const_iterator it = _settings.rules.begin(); it != _settings.rules.end(); ++it) {
            if (it->tokenlist == "define") {
                Tokenizer tokenizer2(&_settings, this);
                std::istringstream istr2(filedata);
                tokenizer2.list.createTokens(istr2, filename);

                for (const Token *tok = tokenizer2.list.front(); tok; tok = tok->next()) {
                    if (tok->str() == "#define") {
                        std::string code = std::string(tok->linenr()-1U, '\n');
                        for (const Token *tok2 = tok; tok2 && tok2->linenr() == tok->linenr(); tok2 = tok2->next())
                            code += " " + tok2->str();
                        Tokenizer tokenizer3(&_settings, this);
                        std::istringstream istr3(code);
                        tokenizer3.list.createTokens(istr3, tokenizer2.list.file(tok));
                        executeRules("define", tokenizer3);
                    }
                }
                break;
            }
        }

        if (!_settings.userDefines.empty() && _settings.maxConfigs==1U) {
            configurations.clear();
            configurations.push_back(_settings.userDefines);
        }

        if (!_settings.force && configurations.size() > _settings.maxConfigs) {
            if (_settings.isEnabled("information")) {
                tooManyConfigsError(Path::toNativeSeparators(filename),configurations.size());
            } else {
                tooManyConfigs = true;
            }
        }

        // write dump file xml prolog
        std::ofstream fdump;
        if (_settings.dump) {
            const std::string dumpfile(filename + ".dump");
            fdump.open(dumpfile.c_str());
            if (fdump.is_open()) {
                fdump << "<?xml version=\"1.0\"?>" << std::endl;
                fdump << "<dumps>" << std::endl;
            }
        }

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

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

            cfg = *it;

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

            if (!_settings.userDefines.empty()) {
                if (!cfg.empty())
                    cfg = ";" + cfg;
                cfg = _settings.userDefines + cfg;
            }

            Timer t("Preprocessor::getcode", _settings.showtime, &S_timerResults);
            std::string codeWithoutCfg = preprocessor.getcode(filedata, cfg, filename);
            t.Stop();

            codeWithoutCfg += _settings.append();

            if (_settings.preprocessOnly) {
                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 _tokenizer(&_settings, this);
            if (_settings.showtime != SHOWTIME_NONE)
                _tokenizer.setTimerResults(&S_timerResults);

            try {
                // Create tokens, skip rest of iteration if failed
                std::istringstream istr(codeWithoutCfg);
                Timer timer("Tokenizer::createTokens", _settings.showtime, &S_timerResults);
                bool result = _tokenizer.createTokens(istr, filename.c_str());
                timer.Stop();
                if (!result)
                    continue;

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

                // Check raw tokens
                checkRawTokens(_tokenizer);

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

                // dump xml if --dump
                if (_settings.dump && fdump.is_open()) {
                    fdump << "<dump cfg=\"" << cfg << "\">" << std::endl;
                    preprocessor.dump(fdump);
                    _tokenizer.dump(fdump);
                    fdump << "</dump>" << std::endl;
                }

                // Skip if we already met the same simplified token list
                if (_settings.force || _settings.maxConfigs > 1) {
                    const unsigned long long checksum = _tokenizer.list.calculateChecksum();
                    if (checksums.find(checksum) != checksums.end())
                        continue;
                    checksums.insert(checksum);
                }

                // Check normal tokens
                checkNormalTokens(_tokenizer);

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

                    // Check simplified tokens
                    checkSimplifiedTokens(_tokenizer);
                }

            } catch (const InternalError &e) {
                if (_settings.isEnabled("information") && (_settings.debug || _settings.verbose))
                    purgedConfigurationMessage(filename, cfg);
                internalErrorFound=true;
                std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
                ErrorLogger::ErrorMessage::FileLocation loc;
                if (e.token) {
                    loc.line = e.token->linenr();
                    const std::string fixedpath = Path::toNativeSeparators(_tokenizer.list.file(e.token));
                    loc.setfile(fixedpath);
                } else {
                    ErrorLogger::ErrorMessage::FileLocation loc2;
                    loc2.setfile(Path::toNativeSeparators(filename.c_str()));
                    locationList.push_back(loc2);
                    loc.setfile(_tokenizer.list.getSourceFilePath());
                }
                locationList.push_back(loc);
                const ErrorLogger::ErrorMessage errmsg(locationList,
                                                       Severity::error,
                                                       e.errorMessage,
                                                       e.id,
                                                       false);

                reportErr(errmsg);
            }
        }

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

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

    // In jointSuppressionReport mode, unmatched suppressions are
    // collected after all files are processed
    if (!_settings.jointSuppressionReport && (_settings.isEnabled("information") || _settings.checkConfiguration)) {
        reportUnmatchedSuppressions(_settings.nomsg.getUnmatchedLocalSuppressions(filename, unusedFunctionCheckIsEnabled()));
    }

    _errorList.clear();
    if (internalErrorFound && (exitcode==0)) {
        exitcode=1;
    }
    return exitcode;
}
Beispiel #2
0
unsigned int CppCheck::processFile(const std::string& filename, const std::string &cfgname, std::istream& fileStream)
{
    exitcode = 0;

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

    if (_settings.terminated())
        return exitcode;

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

        if (_settings.verbose) {
            _errorLogger.reportOut("Defines: " + _settings.userDefines);
            std::string includePaths;
            for (std::list<std::string>::const_iterator I = _settings.includePaths.begin(); I != _settings.includePaths.end(); ++I)
                includePaths += " -I" + *I;
            _errorLogger.reportOut("Includes:" + includePaths);
            _errorLogger.reportOut(std::string("Platform:") + _settings.platformString());
        }
    }

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

    CheckUnusedFunctions checkUnusedFunctions(nullptr, nullptr, nullptr);

    bool internalErrorFound(false);
    try {
        Preprocessor preprocessor(_settings, 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;
                callstack.push_back(loc1);

                ErrorLogger::ErrorMessage errmsg(callstack,
                                                 "",
                                                 Severity::error,
                                                 it->msg,
                                                 "syntaxError",
                                                 false);
                _errorLogger.reportErr(errmsg);
                return 1;
            }
        }

        preprocessor.loadFiles(tokens1, files);

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

        // write dump file xml prolog
        std::ofstream fdump;
        if (_settings.dump) {
            const std::string dumpfile(_settings.dumpFile.empty() ? (filename + ".dump") : _settings.dumpFile);
            fdump.open(dumpfile.c_str());
            if (fdump.is_open()) {
                fdump << "<?xml version=\"1.0\"?>" << std::endl;
                fdump << "<dumps>" << std::endl;
                fdump << "  <platform"
                      << " name=\"" << _settings.platformString() << '\"'
                      << " char_bit=\"" << _settings.char_bit << '\"'
                      << " short_bit=\"" << _settings.short_bit << '\"'
                      << " int_bit=\"" << _settings.int_bit << '\"'
                      << " long_bit=\"" << _settings.long_bit << '\"'
                      << " long_long_bit=\"" << _settings.long_long_bit << '\"'
                      << " pointer_bit=\"" << (_settings.sizeof_pointer * _settings.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);
        tokens1.removeComments();
        preprocessor.removeComments();

        if (!_settings.buildDir.empty()) {
            // Get toolinfo
            std::string toolinfo;
            toolinfo += CPPCHECK_VERSION_STRING;
            toolinfo += _settings.isEnabled(Settings::WARNING) ? 'w' : ' ';
            toolinfo += _settings.isEnabled(Settings::STYLE) ? 's' : ' ';
            toolinfo += _settings.isEnabled(Settings::PERFORMANCE) ? 'p' : ' ';
            toolinfo += _settings.isEnabled(Settings::PORTABILITY) ? 'p' : ' ';
            toolinfo += _settings.isEnabled(Settings::INFORMATION) ? 'i' : ' ';
            toolinfo += _settings.userDefines;

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

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

        preprocessor.setPlatformInfo(&tokens1);

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

        if (_settings.checkConfiguration) {
            for (std::set<std::string>::const_iterator it = configurations.begin(); it != configurations.end(); ++it)
                (void)preprocessor.getcode(tokens1, *it, files, true);

            return 0;
        }

        // Run define rules on raw code
        for (std::list<Settings::Rule>::const_iterator it = _settings.rules.begin(); it != _settings.rules.end(); ++it) {
            if (it->tokenlist != "define")
                continue;

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

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

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

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

            cfg = *it;

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

            if (!_settings.userDefines.empty()) {
                if (!cfg.empty())
                    cfg = ";" + cfg;
                cfg = _settings.userDefines + cfg;
            }

            if (_settings.preprocessOnly) {
                Timer t("Preprocessor::getcode", _settings.showtime, &S_timerResults);
                std::string codeWithoutCfg = preprocessor.getcode(tokens1, cfg, 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 _tokenizer(&_settings, this);
            if (_settings.showtime != SHOWTIME_NONE)
                _tokenizer.setTimerResults(&S_timerResults);

            try {
                bool result;

                // Create tokens, skip rest of iteration if failed
                Timer timer("Tokenizer::createTokens", _settings.showtime, &S_timerResults);
                const simplecpp::TokenList &tokensP = preprocessor.preprocess(tokens1, cfg, files);
                _tokenizer.createTokens(&tokensP);
                timer.Stop();
                if (tokensP.empty())
                    continue;

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

                // Check raw tokens
                checkRawTokens(_tokenizer);

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

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

                // Skip if we already met the same simplified token list
                if (_settings.force || _settings.maxConfigs > 1) {
                    const unsigned long long checksum = _tokenizer.list.calculateChecksum();
                    if (checksums.find(checksum) != checksums.end()) {
                        if (_settings.isEnabled(Settings::INFORMATION) && (_settings.debug || _settings.verbose))
                            purgedConfigurationMessage(filename, cfg);
                        continue;
                    }
                    checksums.insert(checksum);
                }

                // Check normal tokens
                checkNormalTokens(_tokenizer);

                // Analyze info..
                if (!_settings.buildDir.empty())
                    checkUnusedFunctions.parseTokens(_tokenizer, filename.c_str(), &_settings, false);

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

                    // Check simplified tokens
                    checkSimplifiedTokens(_tokenizer);
                }

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

                reportErr(errmsg);
            }
        }

        // dumped all configs, close root </dumps> element now
        if (_settings.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);
        exitcode=1; // e.g. reflect a syntax error
    }

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

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

    _errorList.clear();
    if (internalErrorFound && (exitcode==0)) {
        exitcode=1;
    }
    return exitcode;
}