Use the QmlContext as the scope for QQmlV4Function calls

This further reduces our dependency on the QQmlContextWrapper
and reduces storage requirements in the QObjectMethod.

Change-Id: I2c12d0a8818d81d45139f482caac8510ad8dfddc
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

4 files changed, 14 insertions, 24 deletions

diff --git a/src/qml/jsruntime/qv4qobjectwrapper.cpp b/src/qml/jsruntime/qv4qobjectwrapper.cpp
index e5946d8be..d1796f5fd 100644
--- a/src/qml/jsruntime/qv4qobjectwrapper.cpp
+++ b/src/qml/jsruntime/qv4qobjectwrapper.cpp
@@ -333,9 +333,8 @@ ReturnedValue QObjectWrapper::getProperty(ExecutionEngine *engine, QObject *obje
             Q_ASSERT(vmemo);
             return vmemo->vmeMethod(property->coreIndex);
         } else if (property->isV4Function()) {
-            QV4::ScopedObject qmlcontextobject(scope, engine->qmlContextObject());
-            ScopedContext global(scope, scope.engine->rootContext());
-            return QV4::QObjectMethod::create(global, object, property->coreIndex, qmlcontextobject);
+            ScopedContext global(scope, scope.engine->qmlContext());
+            return QV4::QObjectMethod::create(global, object, property->coreIndex);
         } else if (property->isSignalHandler()) {
             QV4::Scoped<QV4::QmlSignalHandler> handler(scope, scope.engine->memoryManager->alloc<QV4::QmlSignalHandler>(engine, object, property->coreIndex));
 
@@ -1726,7 +1725,7 @@ QV4::ReturnedValue CallArgument::toValue(QV4::ExecutionEngine *engine)
     }
 }
 
-ReturnedValue QObjectMethod::create(ExecutionContext *scope, QObject *object, int index, const Value &qmlGlobal)
+ReturnedValue QObjectMethod::create(ExecutionContext *scope, QObject *object, int index)
 {
     Scope valueScope(scope);
     Scoped<QObjectMethod> method(valueScope, scope->d()->engine->memoryManager->alloc<QObjectMethod>(scope));
@@ -1736,18 +1735,16 @@ ReturnedValue QObjectMethod::create(ExecutionContext *scope, QObject *object, in
         method->d()->propertyCache = ddata->propertyCache;
 
     method->d()->index = index;
-    method->d()->qmlGlobal = qmlGlobal;
     method->d()->valueTypeWrapper = Primitive::undefinedValue();
     return method.asReturnedValue();
 }
 
-ReturnedValue QObjectMethod::create(ExecutionContext *scope, const QQmlValueTypeWrapper *valueType, int index, const Value &qmlGlobal)
+ReturnedValue QObjectMethod::create(ExecutionContext *scope, const QQmlValueTypeWrapper *valueType, int index)
 {
     Scope valueScope(scope);
     Scoped<QObjectMethod> method(valueScope, scope->d()->engine->memoryManager->alloc<QObjectMethod>(scope));
     method->d()->propertyCache = valueType->d()->propertyCache;
     method->d()->index = index;
-    method->d()->qmlGlobal = qmlGlobal;
     method->d()->valueTypeWrapper = *valueType;
     return method.asReturnedValue();
 }
@@ -1863,11 +1860,7 @@ ReturnedValue QObjectMethod::callInternal(CallData *callData) const
 
     if (method.isV4Function()) {
         QV4::ScopedValue rv(scope, QV4::Primitive::undefinedValue());
-
-        QV4::ScopedValue qmlGlobal(scope, d()->qmlGlobal);
-        QQmlV4Function func(callData, rv, qmlGlobal,
-                            QmlContextWrapper::getContext(qmlGlobal),
-                            scope.engine);
+        QQmlV4Function func(callData, rv, scope.engine);
         QQmlV4Function *funcptr = &func;
 
         void *args[] = { 0, &funcptr };
@@ -1886,7 +1879,6 @@ ReturnedValue QObjectMethod::callInternal(CallData *callData) const
 void QObjectMethod::markObjects(Heap::Base *that, ExecutionEngine *e)
 {
     QObjectMethod::Data *This = static_cast<QObjectMethod::Data*>(that);
-    This->qmlGlobal.mark(e);
     This->valueTypeWrapper.mark(e);
 
     FunctionObject::markObjects(that, e);
diff --git a/src/qml/jsruntime/qv4qobjectwrapper_p.h b/src/qml/jsruntime/qv4qobjectwrapper_p.h
index 542d90819..da24c81f4 100644
--- a/src/qml/jsruntime/qv4qobjectwrapper_p.h
+++ b/src/qml/jsruntime/qv4qobjectwrapper_p.h
@@ -79,7 +79,6 @@ struct QObjectMethod : FunctionObject {
     QPointer<QObject> object;
     QQmlRefPointer<QQmlPropertyCache> propertyCache;
     int index;
-    Value qmlGlobal;
 
     Value valueTypeWrapper;
 
@@ -149,8 +148,8 @@ struct Q_QML_EXPORT QObjectMethod : public QV4::FunctionObject
 
     enum { DestroyMethod = -1, ToStringMethod = -2 };
 
-    static ReturnedValue create(QV4::ExecutionContext *scope, QObject *object, int index, const Value &qmlGlobal = Primitive::undefinedValue());
-    static ReturnedValue create(QV4::ExecutionContext *scope, const QQmlValueTypeWrapper *valueType, int index, const Value &qmlGlobal = Primitive::undefinedValue());
+    static ReturnedValue create(QV4::ExecutionContext *scope, QObject *object, int index);
+    static ReturnedValue create(QV4::ExecutionContext *scope, const QQmlValueTypeWrapper *valueType, int index);
 
     int methodIndex() const { return d()->index; }
     QObject *object() const { return d()->object.data(); }
diff --git a/src/qml/jsruntime/qv4script.cpp b/src/qml/jsruntime/qv4script.cpp
index 0bf4f21ac..d619c1a7c 100644
--- a/src/qml/jsruntime/qv4script.cpp
+++ b/src/qml/jsruntime/qv4script.cpp
@@ -379,7 +379,7 @@ ReturnedValue Script::qmlBinding()
     return v.asReturnedValue();
 }
 
-QV4::ReturnedValue Script::evaluate(ExecutionEngine *engine,  const QString &script, Object *scopeObject)
+QV4::ReturnedValue Script::evaluate(ExecutionEngine *engine, const QString &script, Object *scopeObject)
 {
     QV4::Scope scope(engine);
     QV4::Script qmlScript(engine, scopeObject, script, QString());
diff --git a/src/qml/qml/v8/qv8engine_p.h b/src/qml/qml/v8/qv8engine_p.h
index 5d12244dc..08bbbb854 100644
--- a/src/qml/qml/v8/qv8engine_p.h
+++ b/src/qml/qml/v8/qv8engine_p.h
@@ -63,6 +63,7 @@
 #include <private/qv4value_p.h>
 #include <private/qv4object_p.h>
 #include <private/qv4identifier_p.h>
+#include <private/qqmlcontextwrapper_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -119,8 +120,8 @@ class QQmlV4Function
 public:
     int length() const { return callData->argc; }
     QV4::ReturnedValue operator[](int idx) { return (idx < callData->argc ? callData->args[idx].asReturnedValue() : QV4::Encode::undefined()); }
-    QQmlContextData *context() { return ctx; }
-    QV4::ReturnedValue qmlGlobal() { return callData->thisObject.asReturnedValue(); }
+    QQmlContextData *context() { return e->qmlContextObject()->context.contextData(); }
+    QV4::ReturnedValue qmlGlobal() { return e->qmlContextObject()->asReturnedValue(); }
     void setReturnValue(QV4::ReturnedValue rv) { *retVal = rv; }
     QV4::ExecutionEngine *v4engine() const { return e; }
 private:
@@ -129,16 +130,14 @@ private:
     QQmlV4Function(const QQmlV4Function &);
     QQmlV4Function &operator=(const QQmlV4Function &);
 
-    QQmlV4Function(QV4::CallData *callData, QV4::Value *retVal,
-                   const QV4::Value &global, QQmlContextData *c, QV4::ExecutionEngine *e)
-        : callData(callData), retVal(retVal), ctx(c), e(e)
+    QQmlV4Function(QV4::CallData *callData, QV4::Value *retVal, QV4::ExecutionEngine *e)
+        : callData(callData), retVal(retVal), e(e)
     {
-        callData->thisObject = QV4::Value::fromReturnedValue(global.asReturnedValue());
+        callData->thisObject = QV4::Encode::undefined();
     }
 
     QV4::CallData *callData;
     QV4::Value *retVal;
-    QQmlContextData *ctx;
     QV4::ExecutionEngine *e;
 };