| /**************************************************************************** |
| ** |
| ** Copyright (C) 2018 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtSCriptTools module of the Qt Toolkit. |
| ** |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
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| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "qscriptobjectsnapshot_p.h" |
| |
| #include <QtCore/qmap.h> |
| #include <QtCore/qset.h> |
| #include <QtCore/qvector.h> |
| #include <QtCore/qnumeric.h> |
| #include <QtScript/qscriptvalueiterator.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QScriptObjectSnapshot::QScriptObjectSnapshot() |
| { |
| } |
| |
| QScriptObjectSnapshot::~QScriptObjectSnapshot() |
| { |
| } |
| |
| static bool _q_equal(const QScriptValue &v1, const QScriptValue &v2) |
| { |
| if (v1.strictlyEquals(v2)) |
| return true; |
| if (v1.isNumber() && v2.isNumber() && qIsNaN(v1.toNumber()) && qIsNaN(v2.toNumber())) |
| return true; |
| return false; |
| } |
| |
| QScriptObjectSnapshot::Delta QScriptObjectSnapshot::capture(const QScriptValue &object) |
| { |
| Delta result; |
| QMap<QString, QScriptValueProperty> currProps; |
| QHash<QString, int> propertyNameToIndex; |
| { |
| int i = 0; |
| QScriptValueIterator it(object); |
| while (it.hasNext()) { |
| it.next(); |
| QScriptValueProperty prop(it.name(), it.value(), it.flags()); |
| currProps.insert(it.name(), prop); |
| propertyNameToIndex.insert(it.name(), i); |
| ++i; |
| } |
| if (object.prototype().isValid()) { |
| QString __proto__ = QString::fromLatin1("__proto__"); |
| QScriptValueProperty protoProp( |
| __proto__, object.prototype(), |
| QScriptValue::Undeletable | QScriptValue::ReadOnly); |
| currProps.insert(__proto__, protoProp); |
| propertyNameToIndex.insert(__proto__, i); |
| ++i; |
| } |
| } |
| |
| QSet<QString> prevSet; |
| for (int i = 0; i < m_properties.size(); ++i) |
| prevSet.insert(m_properties.at(i).name()); |
| QSet<QString> currSet = currProps.keys().toSet(); |
| QSet<QString> removedProperties = prevSet - currSet; |
| QSet<QString> addedProperties = currSet - prevSet; |
| QSet<QString> maybeChangedProperties = currSet & prevSet; |
| |
| { |
| QMap<int, QScriptValueProperty> am; |
| QSet<QString>::const_iterator it; |
| for (it = addedProperties.constBegin(); it != addedProperties.constEnd(); ++it) { |
| int idx = propertyNameToIndex[*it]; |
| am[idx] = currProps[*it]; |
| } |
| result.addedProperties = am.values(); |
| } |
| |
| { |
| QSet<QString>::const_iterator it; |
| for (it = maybeChangedProperties.constBegin(); it != maybeChangedProperties.constEnd(); ++it) { |
| const QScriptValueProperty &p1 = currProps[*it]; |
| const QScriptValueProperty &p2 = findProperty(*it); |
| if (!_q_equal(p1.value(), p2.value()) |
| || (p1.flags() != p2.flags())) { |
| result.changedProperties.append(p1); |
| } |
| } |
| } |
| |
| result.removedProperties = removedProperties.toList(); |
| |
| m_properties = currProps.values(); |
| |
| return result; |
| } |
| |
| QScriptValueProperty QScriptObjectSnapshot::findProperty(const QString &name) const |
| { |
| for (int i = 0; i < m_properties.size(); ++i) { |
| if (m_properties.at(i).name() == name) |
| return m_properties.at(i); |
| } |
| return QScriptValueProperty(); |
| } |
| |
| QScriptValuePropertyList QScriptObjectSnapshot::properties() const |
| { |
| return m_properties; |
| } |
| |
| QT_END_NAMESPACE |