QtQml: Micro-optimize iterator loops.

Avoid repeated instantiation of end() in loops, use variable instead.

Change-Id: I3bb1c6918cfd16a5dcefbcc03c442e99fe9bf76b
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/src/qml/qml/qqmlengine.cpp b/src/qml/qml/qqmlengine.cpp
index 916f848bbe..70090bd3f9 100644
--- a/src/qml/qml/qqmlengine.cpp
+++ b/src/qml/qml/qqmlengine.cpp
@@ -595,6 +595,9 @@ QQmlEnginePrivate::QQmlEnginePrivate(QQmlEngine *e)
 
 QQmlEnginePrivate::~QQmlEnginePrivate()
 {
+    typedef QHash<QPair<QQmlType *, int>, QQmlPropertyCache *>::Iterator TypePropertyCacheIt;
+    typedef QHash<int, QQmlCompiledData *>::Iterator CompositeTypesIt;
+
     if (inProgressCreations)
         qWarning() << QQmlEngine::tr("There are still \"%1\" items in the process of being created at engine destruction.").arg(inProgressCreations);
 
@@ -612,9 +615,9 @@ QQmlEnginePrivate::~QQmlEnginePrivate()
     if (incubationController) incubationController->d = 0;
     incubationController = 0;
 
-    for(QHash<QPair<QQmlType *, int>, QQmlPropertyCache *>::Iterator iter = typePropertyCache.begin(); iter != typePropertyCache.end(); ++iter)
+    for (TypePropertyCacheIt iter = typePropertyCache.begin(), end = typePropertyCache.end(); iter != end; ++iter)
         (*iter)->release();
-    for (QHash<int, QQmlCompiledData *>::Iterator iter = m_compositeTypes.begin(); iter != m_compositeTypes.end(); ++iter)
+    for (CompositeTypesIt iter = m_compositeTypes.begin(), end = m_compositeTypes.end(); iter != end; ++iter)
         iter.value()->isRegisteredWithEngine = false;
     delete profiler;
 }