cppcheck/test/helpers.cpp at 2.13.x · cppcheck-opensource/cppcheck · GitHub

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* Cppcheck - A tool for static C/C++ code analysis

* 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/>.

#include "helpers.h"

#include "filelister.h"

#include "path.h"

#include "pathmatch.h"

#include "preprocessor.h"

#include <cerrno>

#include <cstdio>

#include <iostream>

#include <fstream> // IWYU pragma: keep

#include <list>

#include <map>

#include <stdexcept>

#include <utility>

#include <vector>

#ifdef _WIN32

#include <windows.h>

#else

#include <sys/stat.h>

#include <unistd.h>

#endif

#include <simplecpp.h>

class Suppressions;

// TODO: better path-only usage

ScopedFile::ScopedFile(std::string name, const std::string &content, std::string path)

: mName(std::move(name))

, mPath(Path::toNativeSeparators(std::move(path)))

, mFullPath(Path::join(mPath, mName))

{

if (!mPath.empty() && mPath != Path::getCurrentPath()) {

if (Path::isDirectory(mPath))

throw std::runtime_error("ScopedFile(" + mFullPath + ") - directory already exists");

#ifdef _WIN32

if (!CreateDirectoryA(mPath.c_str(), nullptr))

throw std::runtime_error("ScopedFile(" + mFullPath + ") - could not create directory");

#else

if (mkdir(mPath.c_str(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0)

throw std::runtime_error("ScopedFile(" + mFullPath + ") - could not create directory");

#endif

}

if (Path::isFile(mFullPath))

throw std::runtime_error("ScopedFile(" + mFullPath + ") - file already exists");

std::ofstream of(mFullPath);

if (!of.is_open())

throw std::runtime_error("ScopedFile(" + mFullPath + ") - could not open file");

of << content;

}

ScopedFile::~ScopedFile() {

const int remove_res = std::remove(mFullPath.c_str());

if (remove_res != 0) {

std::cout << "ScopedFile(" << mFullPath + ") - could not delete file (" << remove_res << ")" << std::endl;

}

if (!mPath.empty() && mPath != Path::getCurrentPath()) {

// TODO: remove all files

// TODO: simplify the function call

// hack to be able to delete *.plist output files

std::list<std::pair<std::string, std::size_t>> files;

const std::string res = FileLister::addFiles(files, mPath, {".plist"}, false, PathMatch({}));

if (!res.empty()) {

std::cout << "ScopedFile(" << mPath + ") - generating file list failed (" << res << ")" << std::endl;

}

for (const auto &f : files)

{

const std::string &file = f.first;

const int rm_f_res = std::remove(file.c_str());

if (rm_f_res != 0) {

std::cout << "ScopedFile(" << mPath + ") - could not delete '" << file << "' (" << rm_f_res << ")" << std::endl;

}

#ifdef _WIN32

if (!RemoveDirectoryA(mPath.c_str())) {

std::cout << "ScopedFile(" << mFullPath + ") - could not delete folder (" << GetLastError() << ")" << std::endl;

}

#else

const int rmdir_res = rmdir(mPath.c_str());

if (rmdir_res == -1) {

const int err = errno;

std::cout << "ScopedFile(" << mFullPath + ") - could not delete folder (" << err << ")" << std::endl;

}

#endif

}

// TODO: we should be using the actual Preprocessor implementation

std::string PreprocessorHelper::getcode(Preprocessor &preprocessor, const std::string &filedata, const std::string &cfg, const std::string &filename, Suppressions *inlineSuppression)

{

simplecpp::OutputList outputList;

std::vector<std::string> files;

std::istringstream istr(filedata);

simplecpp::TokenList tokens1(istr, files, Path::simplifyPath(filename), &outputList);

if (inlineSuppression)

preprocessor.inlineSuppressions(tokens1, *inlineSuppression);

tokens1.removeComments();

preprocessor.simplifyPragmaAsm(&tokens1);

preprocessor.removeComments();

preprocessor.setDirectives(tokens1);

preprocessor.reportOutput(outputList, true);

if (Preprocessor::hasErrors(outputList))

return "";

std::string ret;

try {

// TODO: also preserve location information when #include exists - enabling that will fail since #line is treated like a regular token

ret = preprocessor.getcode(tokens1, cfg, files, filedata.find("#file") != std::string::npos);

} catch (const simplecpp::Output &) {

ret.clear();

}

// Since "files" is a local variable the tracking info must be cleared..

preprocessor.mMacroUsage.clear();

preprocessor.mIfCond.clear();

return ret;

}

void PreprocessorHelper::preprocess(const char code[], std::vector<std::string> &files, Tokenizer& tokenizer)

{

// Raw Tokens..

std::istringstream istr(code);

const simplecpp::TokenList tokens1(istr, files, files[0]);

// Preprocess..

simplecpp::TokenList tokens2(files);

std::map<std::string, simplecpp::TokenList*> filedata;

simplecpp::preprocess(tokens2, tokens1, files, filedata, simplecpp::DUI());

// Tokenizer..

tokenizer.createTokens(std::move(tokens2));

}

void PreprocessorHelper::preprocess(Preprocessor &preprocessor, const char code[], std::vector<std::string> &files, Tokenizer& tokenizer)

{

preprocess(preprocessor, code, files, tokenizer, simplecpp::DUI());

}

void PreprocessorHelper::preprocess(Preprocessor &preprocessor, const char code[], std::vector<std::string> &files, Tokenizer& tokenizer, const simplecpp::DUI& dui)

{

std::istringstream istr(code);

const simplecpp::TokenList tokens1(istr, files, files[0]);

// Preprocess..

simplecpp::TokenList tokens2(files);

std::map<std::string, simplecpp::TokenList*> filedata;

simplecpp::preprocess(tokens2, tokens1, files, filedata, dui);

// Tokenizer..

tokenizer.createTokens(std::move(tokens2));

preprocessor.setDirectives(tokens1);

}

cppcheck/test/helpers.cpp at 2.13.x · cppcheck-opensource/cppcheck · GitHub

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