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Diffstat (limited to 'src/qml/jsruntime/qv4objectiterator.cpp')
-rw-r--r-- | src/qml/jsruntime/qv4objectiterator.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4objectiterator.cpp b/src/qml/jsruntime/qv4objectiterator.cpp new file mode 100644 index 0000000000..a89bfdb797 --- /dev/null +++ b/src/qml/jsruntime/qv4objectiterator.cpp @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "qv4objectiterator_p.h" +#include "qv4object_p.h" +#include "qv4stringobject_p.h" +#include "qv4identifier_p.h" + +using namespace QV4; + +ObjectIterator::ObjectIterator(Object *o, uint flags) + : object(o) + , current(o) + , arrayNode(0) + , arrayIndex(0) + , memberIndex(0) + , flags(flags) +{ + tmpDynamicProperty.value = Value::undefinedValue(); +} + +Property *ObjectIterator::next(String **name, uint *index, PropertyAttributes *attrs) +{ + Property *p = 0; + *name = 0; + *index = UINT_MAX; + while (1) { + if (!current) + break; + + while (p = current->advanceIterator(this, name, index, attrs)) { + // check the property is not already defined earlier in the proto chain + if (current != object) { + Property *pp; + if (*name) { + pp = object->__getPropertyDescriptor__(*name); + } else { + assert (*index != UINT_MAX); + pp = object->__getPropertyDescriptor__(*index); + } + if (pp != p) + continue; + } + return p; + } + + if (flags & WithProtoChain) + current = current->prototype; + else + current = 0; + + arrayIndex = 0; + memberIndex = 0; + } + return 0; +} + +Value ObjectIterator::nextPropertyName(Value *value) +{ + PropertyAttributes attrs; + uint index; + String *name; + Property *p = next(&name, &index, &attrs); + if (!p) + return Value::nullValue(); + + if (value) + *value = object->getValue(p, attrs); + + if (name) + return Value::fromString(name); + assert(index < UINT_MAX); + return Value::fromDouble(index); +} + +Value ObjectIterator::nextPropertyNameAsString(Value *value) +{ + PropertyAttributes attrs; + uint index; + String *name; + Property *p = next(&name, &index, &attrs); + if (!p) + return Value::nullValue(); + + if (value) + *value = object->getValue(p, attrs); + + if (name) + return Value::fromString(name); + assert(index < UINT_MAX); + return Value::fromString(object->engine()->newString(QString::number(index))); +} |