Merge the QJSEngine and QJSValue development branch into master.

This replaces the dependency to QtScript with two new builtin classes
QJSValue and QJSEngine.

This is still work in progress, development continues now in the master branch.

Change-Id: I7f5487feb45c972f25a22b10cc81b9218b9805de
Reviewed-on: http://codereview.qt.nokia.com/2299
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>

1 files changed, 1024 insertions, 0 deletions

diff --git a/src/declarative/qml/v8/qjsvalue.cpp b/src/declarative/qml/v8/qjsvalue.cpp
new file mode 100644
index 0000000000..eff7b4321a
--- /dev/null
+++ b/src/declarative/qml/v8/qjsvalue.cpp
@@ -0,0 +1,1024 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtScript module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL-ONLY$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qscriptisolate_p.h"
+#include "qjsengine.h"
+#include "qv8engine_p.h"
+#include "qjsvalue.h"
+#include "qjsvalue_p.h"
+#include "qscript_impl_p.h"
+#include "qscriptshareddata_p.h"
+#include <QtCore/qregexp.h>
+#include <QtCore/qstring.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    Constructs an invalid value.
+*/
+QJSValue::QJSValue()
+    : d_ptr(InvalidValue())
+{
+}
+
+/*!
+  Constructs a new QJSValue with a boolean \a value.
+*/
+QJSValue::QJSValue(bool value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+    \enum QJSValue::PropertyFlag
+
+    This enum describes the attributes of a property.
+
+    \value ReadOnly The property is read-only. Attempts by Qt Script code to write to the property will be ignored.
+
+    \value Undeletable Attempts by Qt Script code to \c{delete} the property will be ignored.
+
+    \value SkipInEnumeration The property is not to be enumerated by a \c{for-in} enumeration.
+
+    \value PropertyGetter The property is defined by a function which will be called to get the property value.
+
+    \value PropertySetter The property is defined by a function which will be called to set the property value.
+
+    \omitvalue QObjectMember This flag is used to indicate that an existing property is a QObject member (a property or method).
+
+    \value KeepExistingFlags This value is used to indicate to setProperty() that the property's flags should be left unchanged. If the property doesn't exist, the default flags (0) will be used.
+
+    \omitvalue UserRange Flags in this range are not used by Qt Script, and can be used for custom purposes.
+*/
+
+/*!
+  Constructs a new QJSValue with a number \a value.
+*/
+QJSValue::QJSValue(int value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+  Constructs a new QJSValue with a number \a value.
+*/
+QJSValue::QJSValue(uint value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+  Constructs a new QJSValue with a number \a value.
+*/
+QJSValue::QJSValue(double value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+  Constructs a new QJSValue with a string \a value.
+*/
+QJSValue::QJSValue(const QString& value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+  Constructs a new QJSValue with a special \a value.
+*/
+QJSValue::QJSValue(SpecialValue value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+  Constructs a new QJSValue with a string \a value.
+*/
+QJSValue::QJSValue(const QLatin1String &value)
+    : d_ptr(new QJSValuePrivate(value))
+{
+}
+
+/*!
+  \fn QJSValue::QJSValue(const QLatin1String &value)
+
+  Constructs a new QJSValue with a string \a value.
+*/
+#ifndef QT_NO_CAST_FROM_ASCII
+QJSValue::QJSValue(const char *value)
+    : d_ptr(new QJSValuePrivate(QString::fromAscii(value)))
+{
+}
+#endif
+
+/*!
+    Block automatic convertion to bool
+    \internal
+*/
+QJSValue::QJSValue(void* d)
+{
+    Q_UNUSED(d);
+    Q_ASSERT(false);
+}
+
+/*!
+    Constructs a new QJSValue from private
+    \internal
+*/
+QJSValue::QJSValue(QJSValuePrivate* d)
+    : d_ptr(d)
+{
+}
+
+/*!
+    Constructs a new QJSValue from private
+    \internal
+*/
+QJSValue::QJSValue(QScriptPassPointer<QJSValuePrivate> d)
+    : d_ptr(d.give())
+{
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the boolean \a value and
+  registers it with the script \a engine.
+*/
+QJSValue::QJSValue(QJSEngine* engine, bool value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), value);
+    } else {
+        d_ptr = new QJSValuePrivate(value);
+    }
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the integer \a value and
+  registers it with the script \a engine.
+*/
+QJSValue::QJSValue(QJSEngine* engine, int value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), value);
+    } else {
+        d_ptr = new QJSValuePrivate(value);
+    }
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the unsigned integer \a value and
+  registers it with the script \a engine.
+ */
+QJSValue::QJSValue(QJSEngine* engine, uint value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), value);
+    } else {
+        d_ptr = new QJSValuePrivate(value);
+    }
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the double \a value and
+  registers it with the script \a engine.
+*/
+QJSValue::QJSValue(QJSEngine* engine, double value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), value);
+    } else {
+        d_ptr = new QJSValuePrivate(value);
+    }
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the string \a value and
+  registers it with the script \a engine.
+*/
+QJSValue::QJSValue(QJSEngine* engine, const QString& value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), value);
+    } else {
+        d_ptr = new QJSValuePrivate(value);
+    }
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the string \a value and
+  registers it with the script \a engine.
+*/
+QJSValue::QJSValue(QJSEngine* engine, const char* value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), QString::fromUtf8(value));
+    } else {
+        d_ptr = new QJSValuePrivate(QString::fromUtf8(value));
+    }
+}
+
+/*!
+  \obsolete
+
+  Constructs a new QJSValue with the special \a value and
+  registers it with the script \a engine.
+*/
+QJSValue::QJSValue(QJSEngine* engine, SpecialValue value)
+{
+    if (engine) {
+        QScriptIsolate api(QV8Engine::get(engine), QScriptIsolate::NotNullEngine);
+        d_ptr = new QJSValuePrivate(QV8Engine::get(engine), value);
+    } else {
+        d_ptr = new QJSValuePrivate(value);
+    }
+}
+
+/*!
+  Constructs a new QJSValue that is a copy of \a other.
+
+  Note that if \a other is an object (i.e., isObject() would return
+  true), then only a reference to the underlying object is copied into
+  the new script value (i.e., the object itself is not copied).
+*/
+QJSValue::QJSValue(const QJSValue& other)
+    : d_ptr(other.d_ptr)
+{
+}
+
+/*!
+    Destroys this QJSValue.
+*/
+QJSValue::~QJSValue()
+{
+}
+
+/*!
+  Returns true if this QJSValue is valid; otherwise returns
+  false.
+*/
+bool QJSValue::isValid() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isValid();
+}
+
+/*!
+  Returns true if this QJSValue is of the primitive type Boolean;
+  otherwise returns false.
+
+  \sa toBool()
+*/
+bool QJSValue::isBool() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isBool();
+}
+
+/*!
+  \obsolete
+
+  Use isBool() instead.
+  Returns true if this QJSValue is of the primitive type Boolean;
+  otherwise returns false.
+*/
+bool QJSValue::isBoolean() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isBool();
+}
+
+/*!
+  Returns true if this QJSValue is of the primitive type Number;
+  otherwise returns false.
+
+  \sa toNumber()
+*/
+bool QJSValue::isNumber() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isNumber();
+}
+
+/*!
+  Returns true if this QJSValue is of the primitive type Null;
+  otherwise returns false.
+
+  \sa QJSEngine::nullValue()
+*/
+bool QJSValue::isNull() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isNull();
+}
+
+/*!
+  Returns true if this QJSValue is of the primitive type String;
+  otherwise returns false.
+
+  \sa toString()
+*/
+bool QJSValue::isString() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isString();
+}
+
+/*!
+  Returns true if this QJSValue is of the primitive type Undefined;
+  otherwise returns false.
+
+  \sa QJSEngine::undefinedValue()
+*/
+bool QJSValue::isUndefined() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isUndefined();
+}
+
+/*!
+  Returns true if this QJSValue is an object of the Error class;
+  otherwise returns false.
+
+  \sa QScriptContext::throwError()
+*/
+bool QJSValue::isError() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isError();
+}
+
+/*!
+  Returns true if this QJSValue is an object of the Array class;
+  otherwise returns false.
+
+  \sa QJSEngine::newArray()
+*/
+bool QJSValue::isArray() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isArray();
+ }
+
+/*!
+  Returns true if this QJSValue is of the Object type; otherwise
+  returns false.
+
+  Note that function values, variant values, and QObject values are
+  objects, so this function returns true for such values.
+
+  \sa toObject(), QJSEngine::newObject()
+*/
+bool QJSValue::isObject() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isObject();
+}
+
+/*!
+  Returns true if this QJSValue is a function; otherwise returns
+  false.
+
+  \sa call()
+*/
+bool QJSValue::isFunction() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isCallable();
+}
+
+/*!
+  Returns true if this QJSValue is a variant value;
+  otherwise returns false.
+
+  \sa toVariant(), QJSEngine::newVariant()
+*/
+bool QJSValue::isVariant() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isVariant();
+}
+
+/*!
+  Returns the string value of this QJSValue, as defined in
+  \l{ECMA-262} section 9.8, "ToString".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's toString() function (and possibly valueOf()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa isString()
+*/
+QString QJSValue::toString() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toString();
+}
+
+/*!
+  Returns the number value of this QJSValue, as defined in
+  \l{ECMA-262} section 9.3, "ToNumber".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's valueOf() function (and possibly toString()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa isNumber(), toInteger(), toInt32(), toUInt32(), toUInt16()
+*/
+double QJSValue::toNumber() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toNumber();
+}
+
+/*!
+  Returns the boolean value of this QJSValue, using the conversion
+  rules described in \l{ECMA-262} section 9.2, "ToBoolean".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's valueOf() function (and possibly toString()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa isBool()
+*/
+bool QJSValue::toBool() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toBool();
+}
+
+/*!
+  \obsolete
+
+  Use toBool() instead.
+*/
+bool QJSValue::toBoolean() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toBool();
+}
+
+/*!
+  Returns the integer value of this QJSValue, using the conversion
+  rules described in \l{ECMA-262} section 9.4, "ToInteger".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's valueOf() function (and possibly toString()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa toNumber()
+*/
+double QJSValue::toInteger() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toInteger();
+}
+
+/*!
+  Returns the signed 32-bit integer value of this QJSValue, using
+  the conversion rules described in \l{ECMA-262} section 9.5, "ToInt32".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's valueOf() function (and possibly toString()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa toNumber(), toUInt32()
+*/
+qint32 QJSValue::toInt32() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toInt32();
+}
+
+/*!
+  Returns the unsigned 32-bit integer value of this QJSValue, using
+  the conversion rules described in \l{ECMA-262} section 9.6, "ToUint32".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's valueOf() function (and possibly toString()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa toNumber(), toInt32()
+*/
+quint32 QJSValue::toUInt32() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toUInt32();
+}
+
+/*!
+  Returns the unsigned 16-bit integer value of this QJSValue, using
+  the conversion rules described in \l{ECMA-262} section 9.7, "ToUint16".
+
+  Note that if this QJSValue is an object, calling this function
+  has side effects on the script engine, since the engine will call
+  the object's valueOf() function (and possibly toString()) in an
+  attempt to convert the object to a primitive value (possibly
+  resulting in an uncaught script exception).
+
+  \sa toNumber()
+*/
+quint16 QJSValue::toUInt16() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toUInt16();
+}
+
+/*!
+  \obsolete
+
+  This function is obsolete; use QJSEngine::toObject() instead.
+*/
+QJSValue QJSValue::toObject() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return QJSValuePrivate::get(d->toObject());
+}
+
+/*!
+  Returns the QVariant value of this QJSValue, if it can be
+  converted to a QVariant; otherwise returns an invalid QVariant.
+  The conversion is performed according to the following table:
+
+    \table
+    \header \o Input Type \o Result
+    \row    \o Undefined  \o An invalid QVariant.
+    \row    \o Null       \o An invalid QVariant.
+    \row    \o Boolean    \o A QVariant containing the value of the boolean.
+    \row    \o Number     \o A QVariant containing the value of the number.
+    \row    \o String     \o A QVariant containing the value of the string.
+    \row    \o QVariant Object \o The result is the QVariant value of the object (no conversion).
+    \row    \o QObject Object \o A QVariant containing a pointer to the QObject.
+    \row    \o Date Object \o A QVariant containing the date value (toDateTime()).
+    \row    \o RegExp Object \o A QVariant containing the regular expression value (toRegExp()).
+    \row    \o Array Object \o The array is converted to a QVariantList. Each element is converted to a QVariant, recursively; cyclic references are not followed.
+    \row    \o Object     \o The object is converted to a QVariantMap. Each property is converted to a QVariant, recursively; cyclic references are not followed.
+    \endtable
+
+  \sa isVariant()
+*/
+QVariant QJSValue::toVariant() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toVariant();
+}
+
+
+/*!
+  Calls this QJSValue as a function, using \a thisObject as
+  the `this' object in the function call, and passing \a args
+  as arguments to the function. Returns the value returned from
+  the function.
+
+  If this QJSValue is not a function, call() does nothing
+  and returns an invalid QJSValue.
+
+  Note that if \a thisObject is not an object, the global object
+  (see \l{QJSEngine::globalObject()}) will be used as the
+  `this' object.
+
+  Calling call() can cause an exception to occur in the script engine;
+  in that case, call() returns the value that was thrown (typically an
+  \c{Error} object). You can call
+  QJSEngine::hasUncaughtException() to determine if an exception
+  occurred.
+
+  \snippet doc/src/snippets/code/src_script_qscriptvalue.cpp 2
+
+  \sa construct()
+*/
+QJSValue QJSValue::call(const QJSValue& thisObject, const QJSValueList& args)
+{
+    Q_D(QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->call(QJSValuePrivate::get(thisObject), args);
+}
+
+/*!
+  Creates a new \c{Object} and calls this QJSValue as a
+  constructor, using the created object as the `this' object and
+  passing \a args as arguments. If the return value from the
+  constructor call is an object, then that object is returned;
+  otherwise the default constructed object is returned.
+
+  If this QJSValue is not a function, construct() does nothing
+  and returns an invalid QJSValue.
+
+  Calling construct() can cause an exception to occur in the script
+  engine; in that case, construct() returns the value that was thrown
+  (typically an \c{Error} object). You can call
+  QJSEngine::hasUncaughtException() to determine if an exception
+  occurred.
+
+  \sa call(), QJSEngine::newObject()
+*/
+QJSValue QJSValue::construct(const QJSValueList &args)
+{
+    Q_D(QJSValue);
+    QScriptIsolate api(d->engine());
+    return QJSValuePrivate::get(d->construct(args));
+}
+
+/*!
+  Returns the QJSEngine that created this QJSValue,
+  or 0 if this QJSValue is invalid or the value is not
+  associated with a particular engine.
+*/
+QJSEngine* QJSValue::engine() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    QV8Engine* engine = d->engine();
+    if (engine)
+        return QV8Engine::get(engine);
+    return 0;
+}
+
+
+/*!
+  If this QJSValue is an object, returns the internal prototype
+  (\c{__proto__} property) of this object; otherwise returns an
+  invalid QJSValue.
+
+  \sa setPrototype(), isObject()
+*/
+QJSValue QJSValue::prototype() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return QJSValuePrivate::get(d->prototype());
+}
+
+/*!
+  If this QJSValue is an object, sets the internal prototype
+  (\c{__proto__} property) of this object to be \a prototype;
+  otherwise does nothing.
+
+  The internal prototype should not be confused with the public
+  property with name "prototype"; the public prototype is usually
+  only set on functions that act as constructors.
+
+  \sa prototype(), isObject()
+*/
+void QJSValue::setPrototype(const QJSValue& prototype)
+{
+    Q_D(QJSValue);
+    QScriptIsolate api(d->engine());
+    d->setPrototype(QJSValuePrivate::get(prototype));
+}
+
+/*!
+  Assigns the \a other value to this QJSValue.
+
+  Note that if \a other is an object (isObject() returns true),
+  only a reference to the underlying object will be assigned;
+  the object itself will not be copied.
+*/
+QJSValue& QJSValue::operator=(const QJSValue& other)
+{
+    d_ptr = other.d_ptr;
+    return *this;
+}
+
+/*!
+  Returns true if this QJSValue is equal to \a other, otherwise
+  returns false. The comparison follows the behavior described in
+  \l{ECMA-262} section 11.9.3, "The Abstract Equality Comparison
+  Algorithm".
+
+  This function can return true even if the type of this QJSValue
+  is different from the type of the \a other value; i.e. the
+  comparison is not strict.  For example, comparing the number 9 to
+  the string "9" returns true; comparing an undefined value to a null
+  value returns true; comparing a \c{Number} object whose primitive
+  value is 6 to a \c{String} object whose primitive value is "6"
+  returns true; and comparing the number 1 to the boolean value
+  \c{true} returns true. If you want to perform a comparison
+  without such implicit value conversion, use strictlyEquals().
+
+  Note that if this QJSValue or the \a other value are objects,
+  calling this function has side effects on the script engine, since
+  the engine will call the object's valueOf() function (and possibly
+  toString()) in an attempt to convert the object to a primitive value
+  (possibly resulting in an uncaught script exception).
+
+  \sa strictlyEquals(), lessThan()
+*/
+bool QJSValue::equals(const QJSValue& other) const
+{
+    Q_D(const QJSValue);
+    QJSValuePrivate* otherValue = QJSValuePrivate::get(other);
+    QScriptIsolate api(d->engine() ? d->engine() : otherValue->engine());
+    return d_ptr->equals(otherValue);
+}
+
+/*!
+  Returns true if this QJSValue is equal to \a other using strict
+  comparison (no conversion), otherwise returns false. The comparison
+  follows the behavior described in \l{ECMA-262} section 11.9.6, "The
+  Strict Equality Comparison Algorithm".
+
+  If the type of this QJSValue is different from the type of the
+  \a other value, this function returns false. If the types are equal,
+  the result depends on the type, as shown in the following table:
+
+    \table
+    \header \o Type \o Result
+    \row    \o Undefined  \o true
+    \row    \o Null       \o true
+    \row    \o Boolean    \o true if both values are true, false otherwise
+    \row    \o Number     \o false if either value is NaN (Not-a-Number); true if values are equal, false otherwise
+    \row    \o String     \o true if both values are exactly the same sequence of characters, false otherwise
+    \row    \o Object     \o true if both values refer to the same object, false otherwise
+    \endtable
+
+  \sa equals()
+*/
+bool QJSValue::strictlyEquals(const QJSValue& other) const
+{
+    Q_D(const QJSValue);
+    QJSValuePrivate* o = QJSValuePrivate::get(other);
+    QScriptIsolate api(d->engine() ? d->engine() : o->engine());
+    return d_ptr->strictlyEquals(o);
+}
+
+/*!
+    Returns true if this QJSValue is an instance of
+    \a other; otherwise returns false.
+
+    This QJSValue is considered to be an instance of \a other if
+    \a other is a function and the value of the \c{prototype}
+    property of \a other is in the prototype chain of this
+    QJSValue.
+*/
+bool QJSValue::instanceOf(const QJSValue &other) const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->instanceOf(QJSValuePrivate::get(other));
+}
+
+/*!
+  Returns the value of this QJSValue's property with the given \a name,
+  using the given \a mode to resolve the property.
+
+  If no such property exists, an invalid QJSValue is returned.
+
+  If the property is implemented using a getter function (i.e. has the
+  PropertyGetter flag set), calling property() has side-effects on the
+  script engine, since the getter function will be called (possibly
+  resulting in an uncaught script exception). If an exception
+  occurred, property() returns the value that was thrown (typically
+  an \c{Error} object).
+
+  \sa setProperty(), propertyFlags(), QJSValueIterator
+*/
+QJSValue QJSValue::property(const QString& name) const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return QJSValuePrivate::get(d->property(name));
+}
+
+/*!
+  \overload
+
+  Returns the property at the given \a arrayIndex, using the given \a
+  mode to resolve the property.
+
+  This function is provided for convenience and performance when
+  working with array objects.
+
+  If this QJSValue is not an Array object, this function behaves
+  as if property() was called with the string representation of \a
+  arrayIndex.
+*/
+QJSValue QJSValue::property(quint32 arrayIndex) const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return QJSValuePrivate::get(d->property(arrayIndex));
+}
+
+/*!
+  Sets the value of this QJSValue's property with the given \a name to
+  the given \a value.
+
+  If this QJSValue is not an object, this function does nothing.
+
+  If this QJSValue does not already have a property with name \a name,
+  a new property is created; the given \a flags then specify how this
+  property may be accessed by script code.
+
+  If \a value is invalid, the property is removed.
+
+  If the property is implemented using a setter function (i.e. has the
+  PropertySetter flag set), calling setProperty() has side-effects on
+  the script engine, since the setter function will be called with the
+  given \a value as argument (possibly resulting in an uncaught script
+  exception).
+
+  Note that you cannot specify custom getter or setter functions for
+  built-in properties, such as the \c{length} property of Array objects
+  or meta properties of QObject objects.
+
+  \sa property()
+*/
+void QJSValue::setProperty(const QString& name, const QJSValue& value)
+{
+    Q_D(QJSValue);
+    QScriptIsolate api(d->engine());
+    d->setProperty(name, QJSValuePrivate::get(value));
+}
+
+/*!
+  \overload
+
+  Sets the property at the given \a arrayIndex to the given \a value.
+
+  This function is provided for convenience and performance when
+  working with array objects.
+
+  If this QJSValue is not an Array object, this function behaves
+  as if setProperty() was called with the string representation of \a
+  arrayIndex.
+*/
+void QJSValue::setProperty(quint32 arrayIndex, const QJSValue& value)
+{
+    Q_D(QJSValue);
+    QScriptIsolate api(d->engine());
+    d->setProperty(arrayIndex, QJSValuePrivate::get(value));
+}
+
+/*!
+  Returns the flags of the property with the given \a name, using the
+  given \a mode to resolve the property.
+
+  \sa property()
+*/
+QJSValue::PropertyFlags QJSValue::propertyFlags(const QString& name) const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->propertyFlags(name);
+}
+
+/*!
+ * If this QJSValue is a QObject, returns the QObject pointer
+ * that the QJSValue represents; otherwise, returns 0.
+ *
+ * If the QObject that this QJSValue wraps has been deleted,
+ * this function returns 0 (i.e. it is possible for toQObject()
+ * to return 0 even when isQObject() returns true).
+ *
+ * \sa isQObject()
+ */
+QObject *QJSValue::toQObject() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toQObject();
+}
+
+/*!
+  Returns a QDateTime representation of this value, in local time.
+  If this QJSValue is not a date, or the value of the date is NaN
+  (Not-a-Number), an invalid QDateTime is returned.
+
+  \sa isDate()
+*/
+QDateTime QJSValue::toDateTime() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toDataTime();
+}
+
+/*!
+  Returns the QRegExp representation of this value.
+  If this QJSValue is not a regular expression, an empty
+  QRegExp is returned.
+
+  \sa isRegExp()
+*/
+QRegExp QJSValue::toRegExp() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->toRegExp();
+}
+
+/*!
+  Returns true if this QJSValue is an object of the Date class;
+  otherwise returns false.
+
+  \sa QJSEngine::newDate()
+*/
+bool QJSValue::isDate() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isDate();
+}
+
+/*!
+  Returns true if this QJSValue is an object of the RegExp class;
+  otherwise returns false.
+
+  \sa QJSEngine::newRegExp()
+*/
+bool QJSValue::isRegExp() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isRegExp();
+}
+
+/*!
+  Returns true if this QJSValue is a QObject; otherwise returns
+  false.
+
+  Note: This function returns true even if the QObject that this
+  QJSValue wraps has been deleted.
+
+  \sa toQObject(), QJSEngine::newQObject()
+*/
+bool QJSValue::isQObject() const
+{
+    Q_D(const QJSValue);
+    QScriptIsolate api(d->engine());
+    return d->isQObject();
+}
+
+QT_END_NAMESPACE