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// Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
// SPDX-License-Identifier: BSD-3-Clause
#include "qscriptextenumeration_p.h"
#include "qscriptengine_p.h"
#include "qscriptvalueimpl_p.h"
#include "qscriptcontext_p.h"
#include "qscriptmember_p.h"
#include "qscriptobject_p.h"
#include "qscriptvalueiteratorimpl_p.h"
#include <QtDebug>
QT_BEGIN_NAMESPACE
namespace QScript { namespace Ext {
EnumerationClassData::EnumerationClassData(QScriptClassInfo *classInfo):
m_classInfo(classInfo)
{
}
EnumerationClassData::~EnumerationClassData()
{
}
void EnumerationClassData::mark(const QScriptValueImpl &object, int generation)
{
Q_ASSERT(object.isValid());
QScriptEnginePrivate *eng = object.engine();
if (Enumeration::Instance *instance = Enumeration::Instance::get(object, classInfo())) {
eng->markObject(instance->object, generation);
if (instance->it)
eng->markObject(instance->it->object(), generation);
}
}
Enumeration::Enumeration(QScriptEnginePrivate *eng):
Ecma::Core(eng, QLatin1String("Enumeration"), QScriptClassInfo::EnumerationType)
{
classInfo()->setData(new EnumerationClassData(classInfo()));
newEnumeration(&publicPrototype, eng->newArray());
eng->newConstructor(&ctor, this, publicPrototype);
addPrototypeFunction(QLatin1String("toFront"), method_toFront, 0);
addPrototypeFunction(QLatin1String("hasNext"), method_hasNext, 0);
addPrototypeFunction(QLatin1String("next"), method_next, 0);
}
Enumeration::~Enumeration()
{
}
Enumeration::Instance *Enumeration::Instance::get(const QScriptValueImpl &object, QScriptClassInfo *klass)
{
if (! klass || klass == object.classInfo())
return static_cast<Instance*> (object.objectData());
return 0;
}
void Enumeration::execute(QScriptContextPrivate *context)
{
if (context->argumentCount() > 0) {
newEnumeration(&context->m_result, context->argument(0));
} else {
context->throwError(QScriptContext::TypeError,
QLatin1String("Enumeration.execute"));
}
}
void Enumeration::newEnumeration(QScriptValueImpl *result, const QScriptValueImpl &object)
{
Instance *instance = new Instance();
instance->object = object;
if (object.isObject()) {
instance->it = new QScriptValueIteratorImpl(object);
instance->it->setIgnoresDontEnum(false);
instance->it->setEnumeratePrototype(true);
} else {
instance->it = 0;
}
engine()->newObject(result, publicPrototype, classInfo());
result->setObjectData(instance);
}
QScriptValueImpl Enumeration::method_toFront(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo)
{
if (Instance *instance = Instance::get(context->thisObject(), classInfo)) {
if (instance->it)
instance->it->toFront();
return eng->undefinedValue();
} else {
return context->throwError(QScriptContext::TypeError,
QLatin1String("Enumeration.toFront"));
}
}
QScriptValueImpl Enumeration::method_hasNext(QScriptContextPrivate *context, QScriptEnginePrivate *, QScriptClassInfo *classInfo)
{
Instance *instance = Instance::get(context->thisObject(), classInfo);
if (!instance) {
return context->throwError(QScriptContext::TypeError,
QLatin1String("Enumeration.hasNext"));
}
QScriptValueImpl v;
instance->hasNext(context, &v);
return v;
}
QScriptValueImpl Enumeration::method_next(QScriptContextPrivate *context, QScriptEnginePrivate *, QScriptClassInfo *classInfo)
{
Instance *instance = Instance::get(context->thisObject(), classInfo);
if (!instance) {
return context->throwError(QScriptContext::TypeError,
QLatin1String("Enumeration.next"));
}
QScriptValueImpl v;
instance->next(context, &v);
return v;
}
Enumeration::Instance::~Instance()
{
if (it) {
delete it;
it = 0;
}
}
void Enumeration::Instance::toFront()
{
if (it)
it->toFront();
}
void Enumeration::Instance::hasNext(QScriptContextPrivate *, QScriptValueImpl *result)
{
*result = QScriptValueImpl(it && it->hasNext());
}
void Enumeration::Instance::next(QScriptContextPrivate *context, QScriptValueImpl *result)
{
QScriptEnginePrivate *eng = context->engine();
Q_ASSERT(it != 0);
it->next();
QScript::Member *member = it->member();
if (member->isObjectProperty() || member->nameId())
eng->newNameId(result, member->nameId());
else if (member->isNativeProperty() && !member->nameId())
*result = QScriptValueImpl(uint(member->id()));
else
*result = eng->undefinedValue();
}
} } // namespace QScript::Ext
QT_END_NAMESPACE
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