--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/script/bridge/qscriptclassobject.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,273 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtScript module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "config.h"
+#include "qscriptclassobject_p.h"
+
+#include "../api/qscriptengine.h"
+#include "../api/qscriptengine_p.h"
+#include "../api/qscriptcontext.h"
+#include "../api/qscriptcontext_p.h"
+#include "../api/qscriptclass.h"
+#include "../api/qscriptclasspropertyiterator.h"
+
+#include "Error.h"
+#include "PropertyNameArray.h"
+
+Q_DECLARE_METATYPE(QScriptContext*)
+Q_DECLARE_METATYPE(QScriptValue)
+Q_DECLARE_METATYPE(QScriptValueList)
+
+QT_BEGIN_NAMESPACE
+
+namespace QScript
+{
+
+ClassObjectDelegate::ClassObjectDelegate(QScriptClass *scriptClass)
+ : m_scriptClass(scriptClass)
+{
+}
+
+ClassObjectDelegate::~ClassObjectDelegate()
+{
+}
+
+QScriptObjectDelegate::Type ClassObjectDelegate::type() const
+{
+ return ClassObject;
+}
+
+bool ClassObjectDelegate::getOwnPropertySlot(QScriptObject* object,
+ JSC::ExecState *exec,
+ const JSC::Identifier &propertyName,
+ JSC::PropertySlot &slot)
+{
+ QScriptEnginePrivate *engine = scriptEngineFromExec(exec);
+ QScript::SaveFrameHelper saveFrame(engine, exec);
+ // for compatibility with the old back-end, normal JS properties
+ // are queried first.
+ if (QScriptObjectDelegate::getOwnPropertySlot(object, exec, propertyName, slot))
+ return true;
+
+ QScriptValue scriptObject = engine->scriptValueFromJSCValue(object);
+ QScriptString scriptName;
+ QScriptStringPrivate scriptName_d(engine, propertyName, QScriptStringPrivate::StackAllocated);
+ QScriptStringPrivate::init(scriptName, &scriptName_d);
+ uint id = 0;
+ QScriptClass::QueryFlags flags = m_scriptClass->queryProperty(
+ scriptObject, scriptName, QScriptClass::HandlesReadAccess, &id);
+ if (flags & QScriptClass::HandlesReadAccess) {
+ QScriptValue value = m_scriptClass->property(scriptObject, scriptName, id);
+ slot.setValue(engine->scriptValueToJSCValue(value));
+ return true;
+ }
+ return false;
+}
+
+void ClassObjectDelegate::put(QScriptObject* object, JSC::ExecState *exec,
+ const JSC::Identifier &propertyName,
+ JSC::JSValue value, JSC::PutPropertySlot &slot)
+{
+ QScriptEnginePrivate *engine = scriptEngineFromExec(exec);
+ QScript::SaveFrameHelper saveFrame(engine, exec);
+ QScriptValue scriptObject = engine->scriptValueFromJSCValue(object);
+ QScriptString scriptName;
+ QScriptStringPrivate scriptName_d(engine, propertyName, QScriptStringPrivate::StackAllocated);
+ QScriptStringPrivate::init(scriptName, &scriptName_d);
+ uint id = 0;
+ QScriptClass::QueryFlags flags = m_scriptClass->queryProperty(
+ scriptObject, scriptName, QScriptClass::HandlesWriteAccess, &id);
+ if (flags & QScriptClass::HandlesWriteAccess) {
+ m_scriptClass->setProperty(scriptObject, scriptName, id, engine->scriptValueFromJSCValue(value));
+ return;
+ }
+ QScriptObjectDelegate::put(object, exec, propertyName, value, slot);
+}
+
+bool ClassObjectDelegate::deleteProperty(QScriptObject* object, JSC::ExecState *exec,
+ const JSC::Identifier &propertyName,
+ bool checkDontDelete)
+{
+ // ### avoid duplication of put()
+ QScriptEnginePrivate *engine = scriptEngineFromExec(exec);
+ QScript::SaveFrameHelper saveFrame(engine, exec);
+ QScriptValue scriptObject = engine->scriptValueFromJSCValue(object);
+ QScriptString scriptName;
+ QScriptStringPrivate scriptName_d(engine, propertyName, QScriptStringPrivate::StackAllocated);
+ QScriptStringPrivate::init(scriptName, &scriptName_d);
+ uint id = 0;
+ QScriptClass::QueryFlags flags = m_scriptClass->queryProperty(
+ scriptObject, scriptName, QScriptClass::HandlesWriteAccess, &id);
+ if (flags & QScriptClass::HandlesWriteAccess) {
+ if (m_scriptClass->propertyFlags(scriptObject, scriptName, id) & QScriptValue::Undeletable)
+ return false;
+ m_scriptClass->setProperty(scriptObject, scriptName, id, QScriptValue());
+ return true;
+ }
+ return QScriptObjectDelegate::deleteProperty(object, exec, propertyName, checkDontDelete);
+}
+
+bool ClassObjectDelegate::getPropertyAttributes(const QScriptObject* object, JSC::ExecState *exec,
+ const JSC::Identifier &propertyName,
+ unsigned &attribs) const
+{
+ QScriptEnginePrivate *engine = scriptEngineFromExec(exec);
+ QScript::SaveFrameHelper saveFrame(engine, exec);
+ QScriptValue scriptObject = engine->scriptValueFromJSCValue(object);
+ QScriptString scriptName;
+ QScriptStringPrivate scriptName_d(engine, propertyName, QScriptStringPrivate::StackAllocated);
+ QScriptStringPrivate::init(scriptName, &scriptName_d);
+ uint id = 0;
+ QScriptClass::QueryFlags flags = m_scriptClass->queryProperty(
+ scriptObject, scriptName, QScriptClass::HandlesReadAccess, &id);
+ if (flags & QScriptClass::HandlesReadAccess) {
+ QScriptValue::PropertyFlags flags = m_scriptClass->propertyFlags(scriptObject, scriptName, id);
+ attribs = 0;
+ if (flags & QScriptValue::ReadOnly)
+ attribs |= JSC::ReadOnly;
+ if (flags & QScriptValue::SkipInEnumeration)
+ attribs |= JSC::DontEnum;
+ if (flags & QScriptValue::Undeletable)
+ attribs |= JSC::DontDelete;
+ if (flags & QScriptValue::PropertyGetter)
+ attribs |= JSC::Getter;
+ if (flags & QScriptValue::PropertySetter)
+ attribs |= JSC::Setter;
+ attribs |= flags & QScriptValue::UserRange;
+ return true;
+ }
+ return QScriptObjectDelegate::getPropertyAttributes(object, exec, propertyName, attribs);
+}
+
+void ClassObjectDelegate::getOwnPropertyNames(QScriptObject* object, JSC::ExecState *exec,
+ JSC::PropertyNameArray &propertyNames,
+ bool includeNonEnumerable)
+{
+ QScriptEnginePrivate *engine = scriptEngineFromExec(exec);
+ QScript::SaveFrameHelper saveFrame(engine, exec);
+ QScriptValue scriptObject = engine->scriptValueFromJSCValue(object);
+ QScriptClassPropertyIterator *it = m_scriptClass->newIterator(scriptObject);
+ if (it != 0) {
+ while (it->hasNext()) {
+ it->next();
+ QString name = it->name().toString();
+ propertyNames.add(JSC::Identifier(exec, name));
+ }
+ delete it;
+ }
+ QScriptObjectDelegate::getOwnPropertyNames(object, exec, propertyNames, includeNonEnumerable);
+}
+
+JSC::CallType ClassObjectDelegate::getCallData(QScriptObject*, JSC::CallData &callData)
+{
+ if (!m_scriptClass->supportsExtension(QScriptClass::Callable))
+ return JSC::CallTypeNone;
+ callData.native.function = call;
+ return JSC::CallTypeHost;
+}
+
+JSC::JSValue JSC_HOST_CALL ClassObjectDelegate::call(JSC::ExecState *exec, JSC::JSObject *callee,
+ JSC::JSValue thisValue, const JSC::ArgList &args)
+{
+ if (!callee->inherits(&QScriptObject::info))
+ return JSC::throwError(exec, JSC::TypeError, "callee is not a ClassObject object");
+ QScriptObject *obj = static_cast<QScriptObject*>(callee);
+ QScriptObjectDelegate *delegate = obj->delegate();
+ if (!delegate || (delegate->type() != QScriptObjectDelegate::ClassObject))
+ return JSC::throwError(exec, JSC::TypeError, "callee is not a ClassObject object");
+
+ QScriptClass *scriptClass = static_cast<ClassObjectDelegate*>(delegate)->scriptClass();
+ QScriptEnginePrivate *eng_p = scriptEngineFromExec(exec);
+
+ JSC::ExecState *oldFrame = eng_p->currentFrame;
+ eng_p->pushContext(exec, thisValue, args, callee);
+ QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame);
+ QScriptValue scriptObject = eng_p->scriptValueFromJSCValue(obj);
+ QVariant result = scriptClass->extension(QScriptClass::Callable, qVariantFromValue(ctx));
+ eng_p->popContext();
+ eng_p->currentFrame = oldFrame;
+ return eng_p->jscValueFromVariant(result);
+}
+
+JSC::ConstructType ClassObjectDelegate::getConstructData(QScriptObject*, JSC::ConstructData &constructData)
+{
+ if (!m_scriptClass->supportsExtension(QScriptClass::Callable))
+ return JSC::ConstructTypeNone;
+ constructData.native.function = construct;
+ return JSC::ConstructTypeHost;
+}
+
+JSC::JSObject* ClassObjectDelegate::construct(JSC::ExecState *exec, JSC::JSObject *callee,
+ const JSC::ArgList &args)
+{
+ Q_ASSERT(callee->inherits(&QScriptObject::info));
+ QScriptObject *obj = static_cast<QScriptObject*>(callee);
+ QScriptObjectDelegate *delegate = obj->delegate();
+ QScriptClass *scriptClass = static_cast<ClassObjectDelegate*>(delegate)->scriptClass();
+
+ QScriptEnginePrivate *eng_p = scriptEngineFromExec(exec);
+ //JSC::ExecState *oldFrame = eng_p->currentFrame;
+ eng_p->pushContext(exec, JSC::JSValue(), args, callee, true);
+ QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame);
+
+ QScriptValue defaultObject = ctx->thisObject();
+ QScriptValue result = qvariant_cast<QScriptValue>(scriptClass->extension(QScriptClass::Callable, qVariantFromValue(ctx)));
+ if (!result.isObject())
+ result = defaultObject;
+ return JSC::asObject(eng_p->scriptValueToJSCValue(result));
+}
+
+bool ClassObjectDelegate::hasInstance(QScriptObject* object, JSC::ExecState *exec,
+ JSC::JSValue value, JSC::JSValue proto)
+{
+ if (!scriptClass()->supportsExtension(QScriptClass::HasInstance))
+ return QScriptObjectDelegate::hasInstance(object, exec, value, proto);
+ QScriptValueList args;
+ QScriptEnginePrivate *eng_p = scriptEngineFromExec(exec);
+ QScript::SaveFrameHelper saveFrame(eng_p, exec);
+ args << eng_p->scriptValueFromJSCValue(object) << eng_p->scriptValueFromJSCValue(value);
+ QVariant result = scriptClass()->extension(QScriptClass::HasInstance, qVariantFromValue(args));
+ return result.toBool();
+}
+
+} // namespace QScript
+
+QT_END_NAMESPACE