QML: Specialize bindings based on target property type.

When we can determine the type of a target property during type
compilation, we can skip a whole bunch of code that deals with
converting the result of a binding to the correct (target) type.

This removes 65 instructions on x86 for such typed bindings.

Change-Id: Id2c7c57b9ae6dfbeb921121beae9630604ca1d17
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/qml/jsruntime/qv4qobjectwrapper.cpp b/src/qml/jsruntime/qv4qobjectwrapper.cpp
index deed9b86a2..cf99b425a2 100644
--- a/src/qml/jsruntime/qv4qobjectwrapper.cpp
+++ b/src/qml/jsruntime/qv4qobjectwrapper.cpp
@@ -465,7 +465,7 @@ void QObjectWrapper::setProperty(ExecutionEngine *engine, QObject *object, QQmlP
             QV4::Scoped<QQmlBindingFunction> bindingFunction(scope, (const Value &)f);
             bindingFunction->initBindingLocation();
 
-            newBinding = new QQmlBinding(value, object, callingQmlContext);
+            newBinding = QQmlBinding::create(property, value, object, callingQmlContext);
             newBinding->setTarget(object, *property);
         }
     }