fixed #12837 - do not use empty filename in FileWithDetails in GUI (fixes cppcheck-gui crash) (#6523)

Author: firewave

gui/checkthread.cpp

@@ -132,16 +132,17 @@ void CheckThread::run()
             file = mResult.getNextFile();
     }
 
-    FileSettings fileSettings = mResult.getNextFileSettings();
-    while (!fileSettings.filename().empty() && mState == Running) {
-        file = QString::fromStdString(fileSettings.filename());
+    const FileSettings* fileSettings = nullptr;
+    mResult.getNextFileSettings(fileSettings);
+    while (fileSettings && mState == Running) {
+        file = QString::fromStdString(fileSettings->filename());
         qDebug() << "Checking file" << file;
-        mCppcheck.check(fileSettings);
-        runAddonsAndTools(&fileSettings, QString::fromStdString(fileSettings.filename()));
+        mCppcheck.check(*fileSettings);
+        runAddonsAndTools(fileSettings, QString::fromStdString(fileSettings->filename()));
         emit fileChecked(file);
 
         if (mState == Running)
-            fileSettings = mResult.getNextFileSettings();
+            mResult.getNextFileSettings(fileSettings);
     }
 
     if (mState == Running)

gui/threadresult.cpp

@@ -68,15 +68,15 @@ QString ThreadResult::getNextFile()
     return mFiles.takeFirst();
 }
 
-FileSettings ThreadResult::getNextFileSettings()
+void ThreadResult::getNextFileSettings(const FileSettings*& fs)
 {
     std::lock_guard<std::mutex> locker(mutex);
-    if (mFileSettings.empty()) {
-        return FileSettings("");
+    fs = nullptr;
+    if (mItNextFileSettings == mFileSettings.cend()) {
+        return;
     }
-    const FileSettings fs = mFileSettings.front();
-    mFileSettings.pop_front();
-    return fs;
+    fs = &(*mItNextFileSettings);
+    ++mItNextFileSettings;
 }
 
 void ThreadResult::setFiles(const QStringList &files)
@@ -100,6 +100,7 @@ void ThreadResult::setProject(const ImportProject &prj)
     std::lock_guard<std::mutex> locker(mutex);
     mFiles.clear();
     mFileSettings = prj.fileSettings;
+    mItNextFileSettings = mFileSettings.cbegin();
     mProgress = 0;
     mFilesChecked = 0;
     mTotalFiles = prj.fileSettings.size();
@@ -116,6 +117,7 @@ void ThreadResult::clearFiles()
     std::lock_guard<std::mutex> locker(mutex);
     mFiles.clear();
     mFileSettings.clear();
+    mItNextFileSettings = mFileSettings.cend();
     mFilesChecked = 0;
     mTotalFiles = 0;
 }

gui/threadresult.h

@@ -54,7 +54,7 @@ class ThreadResult : public QObject, public ErrorLogger {
      */
     QString getNextFile();
 
-    FileSettings getNextFileSettings();
+    void getNextFileSettings(const FileSettings*& fs);
 
     /**
      * @brief Set list of files to check
@@ -137,6 +137,7 @@ public slots:
     QStringList mFiles;
 
     std::list<FileSettings> mFileSettings;
+    std::list<FileSettings>::const_iterator mItNextFileSettings;
 
     /**
      * @brief Max progress