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Diffstat (limited to 'src/declarative/qml/v8/qjsvalue.cpp')
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diff --git a/src/declarative/qml/v8/qjsvalue.cpp b/src/declarative/qml/v8/qjsvalue.cpp deleted file mode 100644 index e0a925c3bb..0000000000 --- a/src/declarative/qml/v8/qjsvalue.cpp +++ /dev/null @@ -1,856 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** 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 -** us via http://www.qt-project.org/. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#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/qstring.h> - -/*! - \since 5.0 - \class QJSValue - - \brief The QJSValue class acts as a container for Qt/JavaScript data types. - - \ingroup qtjavascript - \mainclass - - QJSValue supports the types defined in the \l{ECMA-262} - standard: The primitive types, which are Undefined, Null, Boolean, - Number, and String; and the Object type. Additionally, built-in - support is provided for Qt/C++ types such as QVariant and QObject. - - For the object-based types (including Date and RegExp), use the - newT() functions in QJSEngine (e.g. QJSEngine::newObject()) - to create a QJSValue of the desired type. For the primitive types, - use one of the QJSValue constructor overloads. - - The methods named isT() (e.g. isBool(), isUndefined()) can be - used to test if a value is of a certain type. The methods named - toT() (e.g. toBool(), toString()) can be used to convert a - QJSValue to another type. You can also use the generic - QJSValue_cast() function. - - Object values have zero or more properties which are themselves - QJSValues. Use setProperty() to set a property of an object, and - call property() to retrieve the value of a property. - - \snippet doc/src/snippets/code/src_script_qjsvalue.cpp 0 - - If you want to iterate over the properties of a script object, use - the QJSValueIterator class. - - Object values have an internal \c{prototype} property, which can be - accessed with prototype() and setPrototype(). - - Function objects (objects for which isCallable()) returns true) can - be invoked by calling call(). Constructor functions can be used to - construct new objects by calling callAsConstructor(). - - Use equals() or strictlyEquals() to compare a QJSValue to another. - - Note that a QJSValue for which isObject() is true only carries a - reference to an actual object; copying the QJSValue will only - copy the object reference, not the object itself. If you want to - clone an object (i.e. copy an object's properties to another - object), you can do so with the help of a \c{for-in} statement in - script code, or QJSValueIterator in C++. - - \sa QJSEngine, QJSValueIterator -*/ - -/*! - \enum QJSValue::SpecialValue - - This enum is used to specify a single-valued type. - - \value UndefinedValue An undefined value. - - \value NullValue A null value. -*/ - -QT_BEGIN_NAMESPACE - -/*! - Constructs a new QJSValue with a boolean \a value. -*/ -QJSValue::QJSValue(bool value) - : d_ptr(new QJSValuePrivate(value)) -{ -} - -/*! - 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)) -{ -} - -/*! - 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 - -/*! - 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()) -{ -} - -/*! - 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 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(); -} - -/*! - 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. -*/ -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. -*/ -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. -*/ -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 QJSEngine::newObject() -*/ -bool QJSValue::isObject() const -{ - Q_D(const QJSValue); - QScriptIsolate api(d->engine()); - return d->isObject(); -} - -/*! - Returns true if this QJSValue can be called a function, otherwise - returns false. - - \sa call() -*/ -bool QJSValue::isCallable() 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() -*/ -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(), toInt(), toUInt() -*/ -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(); -} - -/*! - 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(), toUInt() -*/ -qint32 QJSValue::toInt() 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(), toInt() -*/ -quint32 QJSValue::toUInt() const -{ - Q_D(const QJSValue); - QScriptIsolate api(d->engine()); - return d->toUInt32(); -} - -/*! - 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. - \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, passing \a args as arguments - to the function, and using the globalObject() as the "this"-object. - Returns the value returned from the function. - - If this QJSValue is not callable, call() does nothing and - returns an undefined QJSValue. - - 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. - - \sa isCallable(), callWithInstance(), callAsConstructor() -*/ -QJSValue QJSValue::call(const QJSValueList &args) -{ - Q_D(QJSValue); - QScriptIsolate api(d->engine()); - return d->call(/*thisObject=*/0, args); -} - -/*! - Calls this QJSValue as a function, using \a instance 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 undefined QJSValue. - - Note that if \a instance 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. - - \sa call() -*/ -QJSValue QJSValue::callWithInstance(const QJSValue &instance, const QJSValueList &args) -{ - Q_D(QJSValue); - QScriptIsolate api(d->engine()); - return d->call(QJSValuePrivate::get(instance), 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, callAsConstructor() does - nothing and returns an undefined QJSValue. - - Calling this function can cause an exception to occur in the - script engine; in that case, the value that was thrown - (typically an \c{Error} object) is returned. You can call - QJSEngine::hasUncaughtException() to determine if an exception - occurred. - - \sa call(), QJSEngine::newObject() -*/ -QJSValue QJSValue::callAsConstructor(const QJSValueList &args) -{ - Q_D(QJSValue); - QScriptIsolate api(d->engine()); - return QJSValuePrivate::get(d->callAsConstructor(args)); -} - -#ifdef QT_DEPRECATED - -/*! - \obsolete - - 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; -} - -#endif // QT_DEPRECATED - -/*! - If this QJSValue is an object, returns the internal prototype - (\c{__proto__} property) of this object; otherwise returns an - undefined 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() -*/ -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 the value of this QJSValue's property with the given \a name. - If no such property exists, an undefined 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(), hasProperty(), 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. - - 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. - - \sa property(), deleteProperty() -*/ -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)); -} - -/*! - Attempts to delete this object's property of the given \a name. - Returns true if the property was deleted, otherwise returns false. - - The behavior of this function is consistent with the JavaScript - delete operator. In particular: - - \list - \o Non-configurable properties cannot be deleted. - \o This function will return true even if this object doesn't - have a property of the given \a name (i.e., non-existent - properties are "trivially deletable"). - \o If this object doesn't have an own property of the given - \a name, but an object in the prototype() chain does, the - prototype object's property is not deleted, and this function - returns true. - \endlist - - \sa setProperty(), hasOwnProperty() -*/ -bool QJSValue::deleteProperty(const QString &name) -{ - Q_D(QJSValue); - QScriptIsolate api(d->engine()); - return d->deleteProperty(name); -} - -/*! - Returns true if this object has a property of the given \a name, - otherwise returns false. - - \sa property(), hasOwnProperty() -*/ -bool QJSValue::hasProperty(const QString &name) const -{ - Q_D(const QJSValue); - QScriptIsolate api(d->engine()); - return d->hasProperty(name); -} - -/*! - Returns true if this object has an own (not prototype-inherited) - property of the given \a name, otherwise returns false. - - \sa property(), hasProperty() -*/ -bool QJSValue::hasOwnProperty(const QString &name) const -{ - Q_D(const QJSValue); - QScriptIsolate api(d->engine()); - return d->hasOwnProperty(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 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. -*/ -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 |