122 lines
5.0 KiB
C++
122 lines
5.0 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2023 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//---------------------------------------------------------------------------
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#ifndef checkinternalH
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#define checkinternalH
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//---------------------------------------------------------------------------
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#include "check.h"
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#include "config.h"
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#include "errortypes.h"
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#include "settings.h"
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#include <string>
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class ErrorLogger;
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class Token;
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class Tokenizer;
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/// @addtogroup Checks
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/// @{
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/** @brief %Check Internal cppcheck API usage */
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class CPPCHECKLIB CheckInternal : public Check {
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public:
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/** This constructor is used when registering the CheckClass */
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CheckInternal() : Check(myName()) {}
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/** This constructor is used when running checks. */
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CheckInternal(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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: Check(myName(), tokenizer, settings, errorLogger) {}
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void runChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger) override {
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if (!settings->checks.isEnabled(Checks::internalCheck))
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return;
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CheckInternal checkInternal(tokenizer, settings, errorLogger);
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checkInternal.checkTokenMatchPatterns();
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checkInternal.checkTokenSimpleMatchPatterns();
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checkInternal.checkMissingPercentCharacter();
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checkInternal.checkUnknownPattern();
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checkInternal.checkRedundantNextPrevious();
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checkInternal.checkExtraWhitespace();
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checkInternal.checkRedundantTokCheck();
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}
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/** @brief %Check if a simple pattern is used inside Token::Match or Token::findmatch */
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void checkTokenMatchPatterns();
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/** @brief %Check if a complex pattern is used inside Token::simpleMatch or Token::findsimplematch */
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void checkTokenSimpleMatchPatterns();
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/** @brief %Check for missing % end character in Token::Match pattern */
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void checkMissingPercentCharacter();
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/** @brief %Check for unknown (invalid) complex patterns like "%typ%" */
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void checkUnknownPattern();
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/** @brief %Check for inefficient usage of Token::next(), Token::previous() and Token::tokAt() */
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void checkRedundantNextPrevious();
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/** @brief %Check if there is whitespace at the beginning or at the end of a pattern */
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void checkExtraWhitespace();
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/** @brief %Check if there is a redundant check for none-nullness of parameter before Match functions, such as (tok && Token::Match(tok, "foo")) */
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void checkRedundantTokCheck();
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private:
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void multiComparePatternError(const Token *tok, const std::string &pattern, const std::string &funcname);
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void simplePatternError(const Token *tok, const std::string &pattern, const std::string &funcname);
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void complexPatternError(const Token *tok, const std::string &pattern, const std::string &funcname);
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void missingPercentCharacterError(const Token *tok, const std::string &pattern, const std::string &funcname);
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void unknownPatternError(const Token* tok, const std::string& pattern);
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void redundantNextPreviousError(const Token* tok, const std::string& func1, const std::string& func2);
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void orInComplexPattern(const Token *tok, const std::string &pattern, const std::string &funcname);
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void extraWhitespaceError(const Token *tok, const std::string &pattern, const std::string &funcname);
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void checkRedundantTokCheckError(const Token *tok);
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void getErrorMessages(ErrorLogger *errorLogger, const Settings *settings) const override {
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CheckInternal c(nullptr, settings, errorLogger);
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c.multiComparePatternError(nullptr, ";|%type%", "Match");
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c.simplePatternError(nullptr, "class {", "Match");
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c.complexPatternError(nullptr, "%type% ( )", "Match");
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c.missingPercentCharacterError(nullptr, "%num", "Match");
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c.unknownPatternError(nullptr, "%typ");
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c.redundantNextPreviousError(nullptr, "previous", "next");
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c.orInComplexPattern(nullptr, "||", "Match");
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c.extraWhitespaceError(nullptr, "%str% ", "Match");
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c.checkRedundantTokCheckError(nullptr);
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}
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static std::string myName() {
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return "cppcheck internal API usage";
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}
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std::string classInfo() const override {
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// Don't include these checks on the WIKI where people can read what
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// checks there are. These checks are not intended for users.
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return "";
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}
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};
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/// @}
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//---------------------------------------------------------------------------
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#endif // checkinternalH
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