optimize QHash/QMap iterations

RedPandaIDE/debugger/debugger.cpp

@@ -2273,8 +2273,9 @@ void RegisterModel::updateNames(const QStringList &regNames)
 
 void RegisterModel::updateValues(const QHash<int, QString> registerValues)
 {
-    foreach(int row, registerValues.keys()){
-        mRegisterValues[row] = registerValues[row];
+    for(auto it = registerValues.begin();it!=registerValues.end();++it) {
+        int row = it.key();
+        mRegisterValues[row] = it.value();
     }
     emit dataChanged(createIndex(0,1),
                      createIndex(mRegisterNames.count()-1,1));

RedPandaIDE/editor.cpp

@@ -3508,8 +3508,8 @@ void Editor::showCompletion(const QString& preWord,bool autoComplete, CodeComple
     } else {
         switch(calcParserLanguage()) {
         case ParserLanguage::CPlusPlus:
-            foreach (const QString& keyword, CppKeywords.keys()) {
-                keywords.insert(keyword);
+            for(auto it = CppKeywords.begin();it!=CppKeywords.end();++it) {
+                keywords.insert(it.key());
             }
             break;
         case ParserLanguage::C:
@@ -3518,8 +3518,8 @@ void Editor::showCompletion(const QString& preWord,bool autoComplete, CodeComple
 #ifdef ENABLE_SDCC
         case ParserLanguage::SDCC:
             keywords = CKeywords;
-            foreach (const QString& keyword, SDCCKeywords.keys()) {
-                keywords.insert(keyword);
+            for(auto it = SDCCKeywords.begin();it!=SDCCKeywords.end();++it) {
+                keywords.insert(it.key());
             }
             break;
 #endif
@@ -5398,8 +5398,8 @@ void Editor::applySettings()
 #ifdef ENABLE_SDCC
         if (!inProject() && pSettings->compilerSets().defaultSet()
                && pSettings->compilerSets().defaultSet()->compilerType()==CompilerType::SDCC) {
-            foreach(const QString& s, SDCCKeywords.keys())
-                set.insert(s);
+            for(auto it=SDCCKeywords.begin();it!=SDCCKeywords.end();++it)
+                set.insert(it.key());
         }
 #endif
         ((QSynedit::CppSyntaxer*)(syntaxer().get()))->setCustomTypeKeywords(set);

RedPandaIDE/parser/cppparser.cpp

@@ -5926,9 +5926,9 @@ void CppParser::internalInvalidateFile(const QString &fileName)
     }
 
     //remove all statements from namespace cache
-    const QList<QString>& keys=mNamespaces.keys();
-    for (const QString& key:keys) {
-        PStatementList statements = mNamespaces.value(key);
+    for (auto it=mNamespaces.begin();it!=mNamespaces.end();++it) {
+        QString key = it.key();
+        PStatementList statements = it.value();
         for (int i=statements->size()-1;i>=0;i--) {
             PStatement statement = statements->at(i);
             if (statement->fileName == fileName) {

RedPandaIDE/parser/parserutils.cpp

@@ -781,7 +781,8 @@ void ParsedFileInfo::insertBranch(int level, bool branchTrue)
 bool ParsedFileInfo::isLineVisible(int line) const
 {
     int lastI=-1;
-    foreach(int i,mBranches.keys()) {
+    for(auto it=mBranches.begin();it!=mBranches.end();++it) {
+        int i = it.key();
         if (line<i)
             break;
         else