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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/qv4mapiterator_p.h>
#include <private/qv4mapobject_p.h>
#include <private/qv4symbol_p.h>
using namespace QV4;
DEFINE_OBJECT_VTABLE(MapIteratorObject);
void MapIteratorPrototype::init(ExecutionEngine *e)
{
defineDefaultProperty(QStringLiteral("next"), method_next, 0);
Scope scope(e);
ScopedString val(scope, e->newString(QLatin1String("Map Iterator")));
defineReadonlyConfigurableProperty(e->symbol_toStringTag(), val);
}
ReturnedValue MapIteratorPrototype::method_next(const FunctionObject *b, const Value *that, const Value *, int)
{
Scope scope(b);
const MapIteratorObject *thisObject = that->as<MapIteratorObject>();
if (!thisObject)
return scope.engine->throwTypeError(QLatin1String("Not a Map Iterator instance"));
Scoped<MapObject> s(scope, thisObject->d()->iteratedMap);
uint index = thisObject->d()->mapNextIndex;
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()->mapNextIndex = index + 1;
ScopedValue result(scope);
if (itemKind == KeyIteratorKind) {
result = arguments[0];
} else if (itemKind == ValueIteratorKind) {
result = arguments[1];
} else {
Q_ASSERT(itemKind == KeyValueIteratorKind);
result = scope.engine->newArrayObject();
Scoped<ArrayObject> resultArray(scope, result);
resultArray->arrayReserve(2);
resultArray->arrayPut(0, arguments[0]);
resultArray->arrayPut(1, arguments[1]);
resultArray->setArrayLengthUnchecked(2);
}
return IteratorPrototype::createIterResultObject(scope.engine, result, false);
}
thisObject->d()->iteratedMap.set(scope.engine, nullptr);
QV4::Value undefined = Value::undefinedValue();
return IteratorPrototype::createIterResultObject(scope.engine, undefined, true);
}
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