some static analyzer improvements for service runner

Summary:
- be more consty (and don't risk detatching containers)
- init members
- don't ql1s to qstring
- use auto when newing an object

Test Plan: test passes

Reviewers: broulik

Reviewed By: broulik

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D28138

runners/services/autotests/servicerunnertest.cpp

@@ -29,7 +29,7 @@
 
 #include "../servicerunner.h"
 
-#include <locale.h>
+#include <clocale>
 
 class ServiceRunnerTest : public QObject
 {

runners/services/servicerunner.cpp

@@ -105,27 +105,27 @@ private:
         return ret;
     }
 
-    qreal increaseMatchRelavance(const KService::Ptr &service, QVector<QStringRef> &strList, QString category)
+    qreal increaseMatchRelavance(const KService::Ptr &service, const QVector<QStringRef> &strList, const QString &category)
     {
         //Increment the relevance based on all the words (other than the first) of the query list
         qreal relevanceIncrement = 0;
 
-        for(int i=1; i<strList.size(); i++)
-        {
+        for(int i = 1; i < strList.size(); ++i) {
+            const auto &str = strList.at(i);
             if (category == QLatin1String("Name")) {
-                if (service->name().contains(strList[i], Qt::CaseInsensitive)) {
+                if (service->name().contains(str, Qt::CaseInsensitive)) {
                     relevanceIncrement += 0.01;
                 }
             } else if (category == QLatin1String("GenericName")) {
-                if (service->genericName().contains(strList[i], Qt::CaseInsensitive)) {
+                if (service->genericName().contains(str, Qt::CaseInsensitive)) {
                     relevanceIncrement += 0.01;
                 }
             } else if (category == QLatin1String("Exec")) {
-                if (service->exec().contains(strList[i], Qt::CaseInsensitive)) {
+                if (service->exec().contains(str, Qt::CaseInsensitive)) {
                     relevanceIncrement += 0.01;
                 }
             } else if (category == QLatin1String("Comment")) {
-                if (service->comment().contains(strList[i], Qt::CaseInsensitive)) {
+                if (service->comment().contains(str, Qt::CaseInsensitive)) {
                     relevanceIncrement += 0.01;
                 }
             }
@@ -337,7 +337,8 @@ private:
                 continue;
             }
 
-            for (const KServiceAction &action : service->actions()) {
+            const auto actions = service->actions();
+            for (const KServiceAction &action : actions) {
                 if (action.text().isEmpty() || action.exec().isEmpty() || hasSeen(action)) {
                     continue;
                 }
@@ -377,7 +378,7 @@ private:
     QList<Plasma::QueryMatch> matches;
     QString query;
     QString term;
-    int weightedTermLength;
+    int weightedTermLength = -1;
 };
 
 ServiceRunner::ServiceRunner(QObject *parent, const QVariantList &args)
@@ -391,9 +392,7 @@ ServiceRunner::ServiceRunner(QObject *parent, const QVariantList &args)
     addSyntax(Plasma::RunnerSyntax(QStringLiteral(":q:"), i18n("Finds applications whose name or description match :q:")));
 }
 
-ServiceRunner::~ServiceRunner()
-{
-}
+ServiceRunner::~ServiceRunner() = default;
 
 QStringList ServiceRunner::categories() const
 {
@@ -455,14 +454,14 @@ QMimeData * ServiceRunner::mimeDataForMatch(const Plasma::QueryMatch &match)
 
     QString path = service->entryPath();
     if (!QDir::isAbsolutePath(path)) {
-        path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("kservices5/") + path);
+        path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QStringLiteral("kservices5/") + path);
     }
 
     if (path.isEmpty()) {
         return nullptr;
     }
 
-    QMimeData *data = new QMimeData();
+    auto *data = new QMimeData();
     data->setUrls(QList<QUrl>{QUrl::fromLocalFile(path)});
     return data;
 }

runners/services/servicerunner.h

@@ -41,7 +41,7 @@ class ServiceRunner : public Plasma::AbstractRunner
         ~ServiceRunner() override;
 
         void match(Plasma::RunnerContext &context) override;
-        void run(const Plasma::RunnerContext &context, const Plasma::QueryMatch &action) override;
+        void run(const Plasma::RunnerContext &context, const Plasma::QueryMatch &match) override;
         QStringList categories() const override;
         QIcon categoryIcon(const QString& category) const override;