148 lines
4.0 KiB
C++
148 lines
4.0 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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#ifndef helpersH
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#define helpersH
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#include "settings.h"
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#include "tokenize.h"
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#include "tokenlist.h"
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#include <cstddef>
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#include <sstream> // IWYU pragma: keep
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#include <string>
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#include <vector>
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class Token;
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class Preprocessor;
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class Suppressions;
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namespace simplecpp {
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struct DUI;
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}
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class givenACodeSampleToTokenize {
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private:
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Tokenizer tokenizer;
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const Settings settings;
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public:
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explicit givenACodeSampleToTokenize(const char sample[], bool createOnly = false, bool cpp = true)
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: tokenizer(&settings, nullptr) {
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std::istringstream iss(sample);
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if (createOnly)
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tokenizer.list.createTokens(iss, cpp ? "test.cpp" : "test.c");
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else
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tokenizer.tokenize(iss, cpp ? "test.cpp" : "test.c");
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}
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Token* tokens() {
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return tokenizer.tokens();
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}
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const Token* tokens() const {
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return tokenizer.tokens();
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}
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};
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class ScopedFile {
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public:
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ScopedFile(std::string name, const std::string &content, std::string path = "");
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~ScopedFile();
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const std::string& path() const
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{
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return mFullPath;
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}
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const std::string& name() const {
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return mName;
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}
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ScopedFile(const ScopedFile&) = delete;
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ScopedFile(ScopedFile&&) = delete;
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ScopedFile& operator=(const ScopedFile&) = delete;
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ScopedFile& operator=(ScopedFile&&) = delete;
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private:
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const std::string mName;
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const std::string mPath;
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const std::string mFullPath;
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};
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class PreprocessorHelper
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{
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public:
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/**
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* Get preprocessed code for a given configuration
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*
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* Note: for testing only.
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*
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* @param filedata file data including preprocessing 'if', 'define', etc
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* @param cfg configuration to read out
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* @param filename name of source file
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* @param inlineSuppression the inline suppressions
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*/
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static std::string getcode(Preprocessor &preprocessor, const std::string &filedata, const std::string &cfg, const std::string &filename, Suppressions *inlineSuppression = nullptr);
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static void preprocess(const char code[], std::vector<std::string> &files, Tokenizer& tokenizer);
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static void preprocess(Preprocessor &preprocessor, const char code[], std::vector<std::string> &files, Tokenizer& tokenizer);
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static void preprocess(Preprocessor &preprocessor, const char code[], std::vector<std::string> &files, Tokenizer& tokenizer, const simplecpp::DUI& dui);
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};
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namespace cppcheck {
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template<typename T>
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std::size_t count_all_of(const std::string& str, T sub) {
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std::size_t n = 0;
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std::string::size_type pos = 0;
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while ((pos = str.find(sub, pos)) != std::string::npos) {
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++pos;
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++n;
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}
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return n;
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}
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}
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/* designated initialization helper
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Usage:
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struct S
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{
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int i;
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};
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const auto s = dinit(S,
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$.i = 1
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);
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*/
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#define dinit(T, ...) \
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([&] { T ${}; __VA_ARGS__; return $; }())
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// Default construct object to avoid bug in clang
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// error: default member initializer for 'y' needed within definition of enclosing class 'X' outside of member functions
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// see https://stackoverflow.com/questions/53408962
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struct make_default_obj
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{
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template<class T>
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operator T() const // NOLINT
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{
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return T{};
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}
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};
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#endif // helpersH
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