1 files changed, 106 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4arrayiterator.cpp b/src/qml/jsruntime/qv4arrayiterator.cpp
new file mode 100644
index 0000000000..13c036f9a9
--- /dev/null
+++ b/src/qml/jsruntime/qv4arrayiterator.cpp
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Crimson AS <info@crimson.no>
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <private/qv4iterator_p.h>
+#include <private/qv4arrayiterator_p.h>
+#include <private/qv4typedarray_p.h>
+#include <private/qv4symbol_p.h>
+
+using namespace QV4;
+
+DEFINE_OBJECT_VTABLE(ArrayIteratorObject);
+
+void ArrayIteratorPrototype::init(ExecutionEngine *e)
+{
+    defineDefaultProperty(QStringLiteral("next"), method_next, 0);
+
+    Scope scope(e);
+    ScopedString val(scope, e->newString(QLatin1String("Array Iterator")));
+    defineReadonlyConfigurableProperty(e->symbol_toStringTag(), val);
+}
+
+ReturnedValue ArrayIteratorPrototype::method_next(const FunctionObject *b, const Value *that, const Value *, int)
+{
+    Scope scope(b);
+    const ArrayIteratorObject *thisObject = that->as<ArrayIteratorObject>();
+    if (!thisObject)
+        return scope.engine->throwTypeError(QLatin1String("Not an Array Iterator instance"));
+
+    ScopedObject a(scope, thisObject->d()->iteratedObject);
+    if (!a) {
+        QV4::Value undefined = Primitive::undefinedValue();
+        return IteratorPrototype::createIterResultObject(scope.engine, undefined, ScopedValue(scope, Primitive::fromBoolean(true)))->asReturnedValue();
+    }
+
+    quint32 index = thisObject->d()->nextIndex;
+    ArrayIteratorKind itemKind = thisObject->d()->iterationKind;
+
+    Scoped<TypedArray> ta(scope, a->as<TypedArray>());
+    quint32 len = a->getLength();
+
+    if (index >= len) {
+        thisObject->d()->iteratedObject.set(scope.engine, nullptr);
+        QV4::Value undefined = Primitive::undefinedValue();
+        return IteratorPrototype::createIterResultObject(scope.engine, undefined, ScopedValue(scope, Primitive::fromBoolean(true)))->asReturnedValue();
+    }
+
+    thisObject->d()->nextIndex = index + 1;
+    if (itemKind == KeyIteratorKind) {
+        return IteratorPrototype::createIterResultObject(scope.engine, Primitive::fromInt32(index), ScopedValue(scope, Primitive::fromBoolean(false)))->asReturnedValue();
+    }
+
+    ReturnedValue elementValue = a->getIndexed(index);
+    CHECK_EXCEPTION();
+
+    if (itemKind == ValueIteratorKind) {
+        return IteratorPrototype::createIterResultObject(scope.engine, Value::fromReturnedValue(elementValue), ScopedValue(scope, Primitive::fromBoolean(false)))->asReturnedValue();
+    } else {
+        Q_ASSERT(itemKind == KeyValueIteratorKind);
+
+        ScopedArrayObject resultArray(scope, scope.engine->newArrayObject());
+        resultArray->arrayReserve(2);
+        resultArray->arrayPut(0, Primitive::fromInt32(index));
+        resultArray->arrayPut(1, Value::fromReturnedValue(elementValue));
+        resultArray->setArrayLengthUnchecked(2);
+
+        return IteratorPrototype::createIterResultObject(scope.engine, resultArray, ScopedValue(scope, Primitive::fromBoolean(false)))->asReturnedValue();
+    }
+}
+