Convert some v8::Persistent to v4

Change-Id: Ic6613b020dbbb1ee75e2096707d8fb1aa228083d
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

src/qml/qml/qqmlbinding.cpp

@@ -112,7 +112,7 @@ QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContext *ctxt)
     QString code = rewriteBinding(str);
 
     m_expression = str.toUtf8();
-    v8function = evalFunction(context(), obj, code, QString(), 0);
+    v4function = evalFunction(context(), obj, code, QString(), 0)->v4Value();
 }
 
 QQmlBinding::QQmlBinding(const QQmlScriptString &script, QObject *obj, QQmlContext *ctxt)
@@ -159,7 +159,7 @@ QQmlBinding::QQmlBinding(const QQmlScriptString &script, QObject *obj, QQmlConte
     m_lineNumber = scriptPrivate->lineNumber;
     m_columnNumber = scriptPrivate->columnNumber;
 
-    v8function = evalFunction(context(), scopeObject(), code, QString(), m_lineNumber);
+    v4function = evalFunction(context(), scopeObject(), code, QString(), m_lineNumber)->v4Value();
 }
 
 QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContextData *ctxt)
@@ -174,7 +174,7 @@ QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContextData *ctxt
     QString code = rewriteBinding(str);
 
     m_expression = str.toUtf8();
-    v8function = evalFunction(ctxt, obj, code, QString(), 0);
+    v4function = evalFunction(ctxt, obj, code, QString(), 0)->v4Value();
 }
 
 QQmlBinding::QQmlBinding(const QString &str, bool isRewritten, QObject *obj,
@@ -197,7 +197,7 @@ QQmlBinding::QQmlBinding(const QString &str, bool isRewritten, QObject *obj,
 
     m_expression = str.toUtf8();
 
-    v8function = evalFunction(ctxt, obj, code, url, m_lineNumber);
+    v4function = evalFunction(ctxt, obj, code, url, m_lineNumber)->v4Value();
 }
 
 /*!
@@ -217,12 +217,11 @@ QQmlBinding::QQmlBinding(void *functionPtr, QObject *obj, QQmlContextData *ctxt,
     QQmlAbstractExpression::setContext(ctxt);
     setScopeObject(obj);
 
-    v8function = qPersistentNew<v8::Function>(*(v8::Handle<v8::Function> *)functionPtr);
+    v4function = (*(v8::Handle<v8::Function> *)functionPtr)->v4Value();
 }
 
 QQmlBinding::~QQmlBinding()
 {
-    qPersistentDispose(v8function);
 }
 
 void QQmlBinding::setEvaluateFlags(EvaluateFlags flags)
@@ -280,7 +279,7 @@ void QQmlBinding::update(QQmlPropertyPrivate::WriteFlags flags)
             bool isUndefined = false;
 
             v8::Local<v8::Value> result =
-                QQmlJavaScriptExpression::evaluate(context(), v8function, &isUndefined);
+                QQmlJavaScriptExpression::evaluate(context(), **v4function, &isUndefined);
 
             trace.event("writing binding result");
 
@@ -321,7 +320,7 @@ QVariant QQmlBinding::evaluate()
     bool isUndefined = false;
 
     v8::Local<v8::Value> result =
-        QQmlJavaScriptExpression::evaluate(context(), v8function, &isUndefined);
+        QQmlJavaScriptExpression::evaluate(context(), **v4function, &isUndefined);
 
     ep->dereferenceScarceResources();
 

src/qml/qml/qqmlbinding_p.h

@@ -131,7 +131,7 @@ protected:
     ~QQmlBinding();
 
 private:
-    v8::Persistent<v8::Function> v8function;
+    QV4::PersistentValue v4function;
 
     inline bool updatingFlag() const;
     inline void setUpdatingFlag(bool);

src/qml/qml/qqmlcompileddata.cpp

@@ -134,8 +134,6 @@ QQmlCompiledData::~QQmlCompiledData()
 
 void QQmlCompiledData::clear()
 {
-    for (int ii = 0; ii < programs.count(); ++ii)
-        qPersistentDispose(programs[ii].bindings);
 }
 
 /*!

src/qml/qml/qqmlcompiler_p.h

@@ -111,7 +111,7 @@ public:
         : program(p), cdata(c) {}
 
         QByteArray program;
-        v8::Persistent<v8::Array> bindings;
+        QV4::PersistentValue bindings;
         QQmlCompiledData *cdata;
     };
 

src/qml/qml/v8/qv8bindings.cpp

@@ -50,6 +50,8 @@
 #include <private/qqmltrace_p.h>
 #include <private/qqmlprofilerservice_p.h>
 
+#include <private/qv4object_p.h>
+
 QT_BEGIN_NAMESPACE
 
 QQmlAbstractBinding::VTable QV8Bindings_Binding_vtable = {
@@ -86,7 +88,8 @@ void QV8Bindings::Binding::setEnabled(QQmlAbstractBinding *_This, bool e,
 
 void QV8Bindings::refresh()
 {
-    int count = functions()->Length();
+    QV4::ArrayObject *f = functions();
+    int count = f ? f->arrayLength() : 0;
     for (int ii = 0; ii < count; ++ii)
         bindings[ii].refresh();
 }
@@ -170,10 +173,12 @@ void QV8Bindings::Binding::update(QQmlPropertyPrivate::WriteFlags flags)
         DeleteWatcher watcher(this);
         ep->referenceScarceResources();
 
-        v8::Local<v8::Value> result =
+        QV4::ArrayObject *f = parent->functions();
+        v8::Local<v8::Value> result = f ?
             evaluate(context,
-                     v8::Handle<v8::Function>::Cast(parent->functions()->Get(instruction->value)),
-                     &isUndefined);
+                     f->getIndexed(f->internalClass->engine->current, instruction->value),
+                     &isUndefined)
+                : v8::Local<v8::Value>::New(QV4::Value::undefinedValue());
 
         trace.event("writing V8 result");
         bool needsErrorLocationData = false;
@@ -240,7 +245,7 @@ QV8Bindings::QV8Bindings(QQmlCompiledData::V8Program *program,
 {
     QV8Engine *engine = QQmlEnginePrivate::getV8Engine(context->engine);
 
-    if (program->bindings.IsEmpty()) {
+    if (program->bindings->isDeleted()) {
         v8::Local<v8::Script> script;
         bool compileFailed = false;
         {
@@ -260,20 +265,21 @@ QV8Bindings::QV8Bindings(QQmlCompiledData::V8Program *program,
                 if (!message.IsEmpty())
                     QQmlExpressionPrivate::exceptionToError(message, error);
                 QQmlEnginePrivate::get(engine->engine())->warning(error);
-                program->bindings = qPersistentNew(v8::Array::New());
+                program->bindings = QV4::Value::nullValue();
             }
         }
 
         if (!compileFailed) {
             v8::Local<v8::Value> result = script->Run(engine->contextWrapper()->sharedContext());
             if (result->IsArray()) {
-                program->bindings = qPersistentNew(v8::Local<v8::Array>::Cast(result));
+                program->bindings = result->v4Value();
                 program->program.clear(); // We don't need the source anymore
             }
         }
     }
 
-    int bindingsCount = functions()->Length();
+    QV4::ArrayObject *f = functions();
+    int bindingsCount = f ? f->arrayLength() : 0;
     if (bindingsCount) bindings = new QV8Bindings::Binding[bindingsCount];
 
     setContext(context);
@@ -319,9 +325,9 @@ const QString &QV8Bindings::urlString() const
     return program->cdata->name;
 }
 
-v8::Persistent<v8::Array> &QV8Bindings::functions() const
+QV4::ArrayObject *QV8Bindings::functions() const
 {
-    return program->bindings;
+    return program->bindings->asArrayObject();
 }
 
 

src/qml/qml/v8/qv8bindings_p.h

@@ -136,7 +136,7 @@ private:
 
     const QUrl &url() const;
     const QString &urlString() const;
-    v8::Persistent<v8::Array> &functions() const;
+    QV4::ArrayObject *functions() const;
 
     QQmlCompiledData::V8Program *program;
     Binding *bindings;