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// Copyright (C) 2018 Crimson AS <info@crimson.no>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <private/qv4iterator_p.h>
#include <private/qv4estable_p.h>
#include <private/qv4setiterator_p.h>
#include <private/qv4setobject_p.h>
#include <private/qv4symbol_p.h>
using namespace QV4;
DEFINE_OBJECT_VTABLE(SetIteratorObject);
void SetIteratorPrototype::init(ExecutionEngine *e)
{
defineDefaultProperty(QStringLiteral("next"), method_next, 0);
Scope scope(e);
ScopedString val(scope, e->newString(QLatin1String("Set Iterator")));
defineReadonlyConfigurableProperty(e->symbol_toStringTag(), val);
}
ReturnedValue SetIteratorPrototype::method_next(const FunctionObject *b, const Value *that, const Value *, int)
{
Scope scope(b);
const SetIteratorObject *thisObject = that->as<SetIteratorObject>();
if (!thisObject)
return scope.engine->throwTypeError(QLatin1String("Not a Set Iterator instance"));
Scoped<SetObject> s(scope, thisObject->d()->iteratedSet);
uint index = thisObject->d()->setNextIndex;
IteratorKind itemKind = thisObject->d()->iterationKind;
if (!s) {
QV4::Value undefined = Value::undefinedValue();
return IteratorPrototype::createIterResultObject(scope.engine, undefined, true);
}
Value *arguments = scope.alloc(2);
while (index < s->d()->esTable->size()) {
s->d()->esTable->iterate(index, &arguments[0], &arguments[1]);
thisObject->d()->setNextIndex = index + 1;
if (itemKind == KeyValueIteratorKind) {
ScopedArrayObject resultArray(scope, scope.engine->newArrayObject());
resultArray->arrayReserve(2);
resultArray->arrayPut(0, arguments[0]);
resultArray->arrayPut(1, arguments[0]); // yes, the key is repeated.
resultArray->setArrayLengthUnchecked(2);
return IteratorPrototype::createIterResultObject(scope.engine, resultArray, false);
}
return IteratorPrototype::createIterResultObject(scope.engine, arguments[0], false);
}
thisObject->d()->iteratedSet.set(scope.engine, nullptr);
QV4::Value undefined = Value::undefinedValue();
return IteratorPrototype::createIterResultObject(scope.engine, undefined, true);
}
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