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diff --git a/src/script/qscriptvalue.cpp b/src/script/qscriptvalue.cpp deleted file mode 100644 index b70afe5..0000000 --- a/src/script/qscriptvalue.cpp +++ /dev/null @@ -1,1600 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtScript module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** 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, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, 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. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://qt.nokia.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qscriptvalue.h" - -#ifndef QT_NO_SCRIPT - -#include "qscriptvalue_p.h" -#include "qscriptengine_p.h" -#include "qscriptvalueimpl_p.h" -#include "qscriptcontext_p.h" -#include "qscriptmember_p.h" -#include "qscriptobject_p.h" -#include "qscriptclass.h" -#include "qscriptclass_p.h" - -#include <QtCore/QDateTime> -#include <QtCore/QRegExp> - -QT_BEGIN_NAMESPACE - -/*! - \since 4.3 - \class QScriptValue - - \brief The QScriptValue class acts as a container for the Qt Script data types. - - \ingroup script - - - QScriptValue 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, Qt Script - has built-in support for QVariant, QObject and QMetaObject. - - For the object-based types (including Date and RegExp), use the - newT() functions in QScriptEngine (e.g. QScriptEngine::newObject()) - to create a QScriptValue of the desired type. For the primitive types, - use one of the QScriptValue 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 - QScriptValue to another type. You can also use the generic - qscriptvalue_cast() function. - - Object values have zero or more properties which are themselves - QScriptValues. 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_qscriptvalue.cpp 0 - - Each property can have a set of attributes; these are specified as - the third (optional) argument to setProperty(). The attributes of a - property can be queried by calling the propertyFlags() function. The - following code snippet creates a property that cannot be modified by - script code: - - \snippet doc/src/snippets/code/src_script_qscriptvalue.cpp 1 - - If you want to iterate over the properties of a script object, use - the QScriptValueIterator class. - - Object values have an internal \c{prototype} property, which can be - accessed with prototype() and setPrototype(). Properties added to a - prototype are shared by all objects having that prototype; this is - referred to as prototype-based inheritance. In practice, it means - that (by default) the property() function will automatically attempt - to look up look the property in the prototype() (and in the - prototype of the prototype(), and so on), if the object itself does - not have the requested property. Note that this prototype-based - lookup is not performed by setProperty(); setProperty() will always - create the property in the script object itself. For more - information, see the \l{QtScript} documentation. - - Function objects (objects for which isFunction() returns true) can - be invoked by calling call(). Constructor functions can be used to - construct new objects by calling construct(). - - Use equals(), strictlyEquals() and lessThan() to compare a QScriptValue - to another. - - Object values can have custom data associated with them; see the - setData() and data() functions. By default, this data is not - accessible to scripts; it can be used to store any data you want to - associate with the script object. Typically this is used by custom - class objects (see QScriptClass) to store a C++ type that contains - the "native" object data. - - Note that a QScriptValue for which isObject() is true only carries a - reference to an actual object; copying the QScriptValue 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 QScriptValueIterator in C++. - - \sa QScriptEngine, QScriptValueIterator -*/ - -/*! - \enum QScriptValue::SpecialValue - - This enum is used to specify a single-valued type. - - \value UndefinedValue An undefined value. - - \value NullValue A null value. -*/ - -/*! - \enum QScriptValue::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. - - \value 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. - - \value UserRange Flags in this range are not used by Qt Script, and can be used for custom purposes. -*/ - -/*! - \enum QScriptValue::ResolveFlag - - This enum specifies how to look up a property of an object. - - \value ResolveLocal Only check the object's own properties. - - \value ResolvePrototype Check the object's own properties first, then search the prototype chain. This is the default. - - \value ResolveScope Check the object's own properties first, then search the scope chain. - - \value ResolveFull Check the object's own properties first, then search the prototype chain, and finally search the scope chain. -*/ - -/*! - Constructs an invalid QScriptValue. -*/ -QScriptValue::QScriptValue() - : d_ptr(0) -{ -} - -/*! - Destroys this QScriptValue. -*/ -QScriptValue::~QScriptValue() -{ - if (d_ptr && !d_ptr->ref.deref()) { - if (engine()) { - QScriptEnginePrivate::get(engine())->unregisterValue(d_ptr); - } else { - delete d_ptr; - } - d_ptr = 0; - } -} - -/*! - Constructs a new QScriptValue 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). -*/ -QScriptValue::QScriptValue(const QScriptValue &other) - : d_ptr(other.d_ptr) -{ - if (d_ptr) - d_ptr->ref.ref(); -} - -/*! - \obsolete - - Constructs a new QScriptValue with the special \a value and - registers it with the script \a engine. -*/ -QScriptValue::QScriptValue(QScriptEngine *engine, QScriptValue::SpecialValue value) -{ - if (engine) { - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - d_ptr = eng_p->registerValue(QScriptValueImpl(value)); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} - -/*! - \obsolete - - \fn QScriptValue::QScriptValue(QScriptEngine *engine, bool value) - - Constructs a new QScriptValue with the boolean \a value and - registers it with the script \a engine. -*/ -QScriptValue::QScriptValue(QScriptEngine *engine, bool val) -{ - if (engine) { - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - d_ptr = eng_p->registerValue(QScriptValueImpl(val)); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} - -/*! - \fn QScriptValue::QScriptValue(QScriptEngine *engine, int value) - \obsolete - - Constructs a new QScriptValue with the integer \a value and - registers it with the script \a engine. -*/ -QScriptValue::QScriptValue(QScriptEngine *engine, int val) -{ - if (engine) { - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - d_ptr = eng_p->registerValue(QScriptValueImpl(val)); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} - -/*! - \fn QScriptValue::QScriptValue(QScriptEngine *engine, uint value) - \obsolete - - Constructs a new QScriptValue with the unsigned integer \a value and - registers it with the script \a engine. - */ -QScriptValue::QScriptValue(QScriptEngine *engine, uint val) -{ - if (engine) { - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - d_ptr = eng_p->registerValue(QScriptValueImpl(val)); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} - -/*! - \fn QScriptValue::QScriptValue(QScriptEngine *engine, qsreal value) - \obsolete - - Constructs a new QScriptValue with the qsreal \a value and - registers it with the script \a engine. -*/ -QScriptValue::QScriptValue(QScriptEngine *engine, qsreal val) -{ - if (engine) { - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - d_ptr = eng_p->registerValue(QScriptValueImpl(val)); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} - -/*! - \fn QScriptValue::QScriptValue(QScriptEngine *engine, const QString &value) - \obsolete - - Constructs a new QScriptValue with the string \a value and - registers it with the script \a engine. -*/ -QScriptValue::QScriptValue(QScriptEngine *engine, const QString &val) -{ - if (engine) { - QScriptValueImpl v; - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - eng_p->newString(&v, val); - d_ptr = eng_p->registerValue(v); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} - -/*! - \fn QScriptValue::QScriptValue(QScriptEngine *engine, const char *value) - \obsolete - - Constructs a new QScriptValue with the string \a value and - registers it with the script \a engine. -*/ - -#ifndef QT_NO_CAST_FROM_ASCII -QScriptValue::QScriptValue(QScriptEngine *engine, const char *val) -{ - if (engine) { - QScriptValueImpl v; - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine); - eng_p->newString(&v, QString::fromAscii(val)); - d_ptr = eng_p->registerValue(v); - d_ptr->ref.ref(); - } else { - d_ptr = 0; - } -} -#endif - -/*! - \since 4.5 - - Constructs a new QScriptValue with a special \a value. -*/ -QScriptValue::QScriptValue(SpecialValue value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value = QScriptValueImpl(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a boolean \a value. -*/ -QScriptValue::QScriptValue(bool value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value = QScriptValueImpl(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a number \a value. -*/ -QScriptValue::QScriptValue(int value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value = QScriptValueImpl(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a number \a value. -*/ -QScriptValue::QScriptValue(uint value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value = QScriptValueImpl(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a number \a value. -*/ -QScriptValue::QScriptValue(qsreal value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value = QScriptValueImpl(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a string \a value. -*/ -QScriptValue::QScriptValue(const QString &value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value.m_type = QScript::LazyStringType; - d_ptr->value.m_lazy_string_value = new QString(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a string \a value. -*/ -QScriptValue::QScriptValue(const QLatin1String &value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value.m_type = QScript::LazyStringType; - d_ptr->value.m_lazy_string_value = new QString(value); - d_ptr->ref.ref(); -} - -/*! - \since 4.5 - - Constructs a new QScriptValue with a string \a value. -*/ - -#ifndef QT_NO_CAST_FROM_ASCII -QScriptValue::QScriptValue(const char *value) - : d_ptr(new QScriptValuePrivate) -{ - d_ptr->value.m_type = QScript::LazyStringType; - d_ptr->value.m_lazy_string_value = new QString(QString::fromAscii(value)); - d_ptr->ref.ref(); -} -#endif - -/*! - Assigns the \a other value to this QScriptValue. - - 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. -*/ -QScriptValue &QScriptValue::operator=(const QScriptValue &other) -{ - if (d_ptr == other.d_ptr) - return *this; - if (d_ptr && !d_ptr->ref.deref()) { - if (engine()) { - QScriptEnginePrivate::get(engine())->unregisterValue(d_ptr); - } else { - delete d_ptr; - } - } - d_ptr = other.d_ptr; - if (d_ptr) - d_ptr->ref.ref(); - return *this; -} - -/*! - Returns true if this QScriptValue is an object of the Error class; - otherwise returns false. - - \sa QScriptContext::throwError() -*/ -bool QScriptValue::isError() const -{ - Q_D(const QScriptValue); - return d && d->value.isError(); -} - -/*! - Returns true if this QScriptValue is an object of the Array class; - otherwise returns false. - - \sa QScriptEngine::newArray() -*/ -bool QScriptValue::isArray() const -{ - Q_D(const QScriptValue); - return d && d->value.isArray(); -} - -/*! - Returns true if this QScriptValue is an object of the Date class; - otherwise returns false. - - \sa QScriptEngine::newDate() -*/ -bool QScriptValue::isDate() const -{ - Q_D(const QScriptValue); - return d && d->value.isDate(); -} - -/*! - Returns true if this QScriptValue is an object of the RegExp class; - otherwise returns false. - - \sa QScriptEngine::newRegExp() -*/ -bool QScriptValue::isRegExp() const -{ - Q_D(const QScriptValue); - return d && d->value.isRegExp(); -} - -/*! - If this QScriptValue is an object, returns the internal prototype - (\c{__proto__} property) of this object; otherwise returns an - invalid QScriptValue. - - \sa setPrototype(), isObject() -*/ -QScriptValue QScriptValue::prototype() const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.prototype()); -} - -/*! - If this QScriptValue 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 QScriptValue::setPrototype(const QScriptValue &prototype) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return; - if (prototype.isValid() && prototype.engine() - && (prototype.engine() != engine())) { - qWarning("QScriptValue::setPrototype() failed: " - "cannot set a prototype created in " - "a different engine"); - return; - } - QScriptValueImpl was = d->value.prototype(); - d->value.setPrototype(d->value.engine()->toImpl(prototype)); - if (d->value.detectedCycle()) { - qWarning("QScriptValue::setPrototype() failed: " - "cyclic prototype value"); - d->value.setPrototype(was); - } -} - -/*! - \since 4.6 - - Returns the scope object of this QScriptValue. This function is only - relevant for function objects. The scope determines how variables are - resolved when the function is invoked. -*/ -QScriptValue QScriptValue::scope() const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.scope()); -} - -/*! - \since 4.6 - - Sets the \a scope object of this QScriptValue. This function is only - relevant for function objects. Changing the scope is useful when creating - closures; see \l{Nested Functions and the Scope Chain}. -*/ -void QScriptValue::setScope(const QScriptValue &scope) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return; - if (scope.isValid() && scope.engine() - && (scope.engine() != engine())) { - qWarning("QScriptValue::setScope() failed: " - "cannot set a scope object created in " - "a different engine"); - return; - } - d->value.setScope(d->value.engine()->toImpl(scope)); -} - -/*! - Returns true if this QScriptValue is an instance of - \a other; otherwise returns false. - - This QScriptValue 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 - QScriptValue. -*/ -bool QScriptValue::instanceOf(const QScriptValue &other) const -{ - Q_D(const QScriptValue); - if (!isObject() || !other.isObject()) - return false; - if (other.engine() != engine()) { - qWarning("QScriptValue::instanceof: " - "cannot perform operation on a value created in " - "a different engine"); - return false; - } - return d->value.engine()->toImpl(*this) - .instanceOf(d->value.engine()->toImpl(other)); -} - -/*! - Returns true if this QScriptValue is less than \a other, otherwise - returns false. The comparison follows the behavior described in - \l{ECMA-262} section 11.8.5, "The Abstract Relational Comparison - Algorithm". - - Note that if this QScriptValue 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 equals() -*/ -bool QScriptValue::lessThan(const QScriptValue &other) const -{ - if (!isValid() || !other.isValid()) - return false; - if (other.engine() && engine() && (other.engine() != engine())) { - qWarning("QScriptValue::lessThan: " - "cannot compare to a value created in " - "a different engine"); - return false; - } - return QScriptEnginePrivate::lessThan(QScriptValuePrivate::valueOf(*this), - QScriptValuePrivate::valueOf(other)); -} - -/*! - Returns true if this QScriptValue 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 QScriptValue - 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 QScriptValue 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 QScriptValue::equals(const QScriptValue &other) const -{ - if (!isValid() || !other.isValid()) - return isValid() == other.isValid(); - if (other.engine() && engine() && (other.engine() != engine())) { - qWarning("QScriptValue::equals: " - "cannot compare to a value created in " - "a different engine"); - return false; - } - return QScriptEnginePrivate::equals(QScriptValuePrivate::valueOf(*this), - QScriptValuePrivate::valueOf(other)); -} - -/*! - Returns true if this QScriptValue 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 QScriptValue 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 QScriptValue::strictlyEquals(const QScriptValue &other) const -{ - if (!isValid() || !other.isValid()) - return isValid() == other.isValid(); - if (other.engine() && engine() && (other.engine() != engine())) { - qWarning("QScriptValue::strictlyEquals: " - "cannot compare to a value created in " - "a different engine"); - return false; - } - return QScriptEnginePrivate::strictlyEquals(QScriptValuePrivate::valueOf(*this), - QScriptValuePrivate::valueOf(other)); -} - -/*! - Returns the string value of this QScriptValue, as defined in - \l{ECMA-262} section 9.8, "ToString". - - Note that if this QScriptValue 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 QScriptValue::toString() const -{ - Q_D(const QScriptValue); - if (!d) - return QString(); - return d->value.toString(); -} - -/*! - Returns the number value of this QScriptValue, as defined in - \l{ECMA-262} section 9.3, "ToNumber". - - Note that if this QScriptValue 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() -*/ -qsreal QScriptValue::toNumber() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toNumber(); -} - -/*! - \obsolete - - Use toBool() instead. -*/ -bool QScriptValue::toBoolean() const -{ - Q_D(const QScriptValue); - if (!d) - return false; - return d->value.toBoolean(); -} - -/*! - \since 4.5 - - Returns the boolean value of this QScriptValue, using the conversion - rules described in \l{ECMA-262} section 9.2, "ToBoolean". - - Note that if this QScriptValue 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 QScriptValue::toBool() const -{ - Q_D(const QScriptValue); - if (!d) - return false; - return d->value.toBoolean(); -} - -/*! - Returns the signed 32-bit integer value of this QScriptValue, using - the conversion rules described in \l{ECMA-262} section 9.5, "ToInt32". - - Note that if this QScriptValue 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 QScriptValue::toInt32() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toInt32(); -} - -/*! - Returns the unsigned 32-bit integer value of this QScriptValue, using - the conversion rules described in \l{ECMA-262} section 9.6, "ToUint32". - - Note that if this QScriptValue 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 QScriptValue::toUInt32() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toUInt32(); -} - -/*! - Returns the unsigned 16-bit integer value of this QScriptValue, using - the conversion rules described in \l{ECMA-262} section 9.7, "ToUint16". - - Note that if this QScriptValue 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 QScriptValue::toUInt16() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toUInt16(); -} - -/*! - Returns the integer value of this QScriptValue, using the conversion - rules described in \l{ECMA-262} section 9.4, "ToInteger". - - Note that if this QScriptValue 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() -*/ -qsreal QScriptValue::toInteger() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toInteger(); -} - -/*! - Returns the QVariant value of this QScriptValue, 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. - \row \o Object \o If the value is primitive, then the result is converted to a QVariant according to the above rules; otherwise, an invalid QVariant is returned. - \endtable - - \sa isVariant() -*/ -QVariant QScriptValue::toVariant() const -{ - Q_D(const QScriptValue); - if (!d) - return QVariant(); - return d->value.toVariant(); -} - -/*! - \obsolete - - This function is obsolete; use QScriptEngine::toObject() instead. -*/ -QScriptValue QScriptValue::toObject() const -{ - Q_D(const QScriptValue); - if (!d) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - if (!eng) - return QScriptValue(); - return eng->toPublic(eng->toObject(d->value)); -} - -/*! - Returns a QDateTime representation of this value, in local time. - If this QScriptValue is not a date, or the value of the date is NaN - (Not-a-Number), an invalid QDateTime is returned. - - \sa isDate() -*/ -QDateTime QScriptValue::toDateTime() const -{ - Q_D(const QScriptValue); - if (!d) - return QDateTime(); - return d->value.toDateTime(); -} - -#ifndef QT_NO_REGEXP -/*! - Returns the QRegExp representation of this value. - If this QScriptValue is not a regular expression, an empty - QRegExp is returned. - - \sa isRegExp() -*/ -QRegExp QScriptValue::toRegExp() const -{ - Q_D(const QScriptValue); - if (!d) - return QRegExp(); - return d->value.toRegExp(); -} -#endif // QT_NO_REGEXP - -/*! - If this QScriptValue is a QObject, returns the QObject pointer - that the QScriptValue represents; otherwise, returns 0. - - If the QObject that this QScriptValue 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 *QScriptValue::toQObject() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toQObject(); -} - -/*! - If this QScriptValue is a QMetaObject, returns the QMetaObject pointer - that the QScriptValue represents; otherwise, returns 0. - - \sa isQMetaObject() -*/ -const QMetaObject *QScriptValue::toQMetaObject() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.toQMetaObject(); -} - -/*! - Sets the value of this QScriptValue's property with the given \a name to - the given \a value. - - If this QScriptValue is not an object, this function does nothing. - - If this QScriptValue 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 QScriptValue::setProperty(const QString &name, const QScriptValue &value, - const PropertyFlags &flags) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return; - if (value.engine() && (value.engine() != engine())) { - qWarning("QScriptValue::setProperty(%s) failed: " - "cannot set value created in a different engine", - qPrintable(name)); - return; - } - d->value.setProperty(name, d->value.engine()->toImpl(value), flags); -} - -/*! - Returns the value of this QScriptValue's property with the given \a name, - using the given \a mode to resolve the property. - - If no such property exists, an invalid QScriptValue 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(), QScriptValueIterator -*/ -QScriptValue QScriptValue::property(const QString &name, - const ResolveFlags &mode) const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.property(name, mode)); -} - -/*! - \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 QScriptValue is not an Array object, this function behaves - as if property() was called with the string representation of \a - arrayIndex. -*/ -QScriptValue QScriptValue::property(quint32 arrayIndex, - const ResolveFlags &mode) const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.property(arrayIndex, mode)); -} - -/*! - \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 QScriptValue is not an Array object, this function behaves - as if setProperty() was called with the string representation of \a - arrayIndex. -*/ -void QScriptValue::setProperty(quint32 arrayIndex, const QScriptValue &value, - const PropertyFlags &flags) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return; - if (value.engine() && (value.engine() != engine())) { - qWarning("QScriptValue::setProperty() failed: " - "cannot set value created in a different engine"); - return; - } - d->value.setProperty(arrayIndex, d->value.engine()->toImpl(value), flags); -} - -/*! - \since 4.4 - - Returns the value of this QScriptValue's property with the given \a name, - using the given \a mode to resolve the property. - - This overload of property() is useful when you need to look up the - same property repeatedly, since the lookup can be performed faster - when the name is represented as an interned string. - - \sa QScriptEngine::toStringHandle(), setProperty() -*/ -QScriptValue QScriptValue::property(const QScriptString &name, - const ResolveFlags &mode) const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - if (!name.isValid()) - return QScriptValue(); - QScriptStringPrivate *s = QScriptStringPrivate::get(name); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.property(s->nameId, mode)); -} - -/*! - \since 4.4 - - Sets the value of this QScriptValue's property with the given \a - name to the given \a value. The given \a flags specify how this - property may be accessed by script code. - - This overload of setProperty() is useful when you need to set the - same property repeatedly, since the operation can be performed - faster when the name is represented as an interned string. - - \sa QScriptEngine::toStringHandle() -*/ -void QScriptValue::setProperty(const QScriptString &name, - const QScriptValue &value, - const PropertyFlags &flags) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject() || !name.isValid()) - return; - if (value.engine() && (value.engine() != engine())) { - qWarning("QScriptValue::setProperty() failed: " - "cannot set value created in a different engine"); - return; - } - QScriptStringPrivate *s = QScriptStringPrivate::get(name); - d->value.setProperty(s->nameId, d->value.engine()->toImpl(value), flags); -} - -/*! - Returns the flags of the property with the given \a name, using the - given \a mode to resolve the property. - - \sa property() -*/ -QScriptValue::PropertyFlags QScriptValue::propertyFlags(const QString &name, - const ResolveFlags &mode) const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->value.propertyFlags(name, mode); -} - -/*! - \since 4.4 - - Returns the flags of the property with the given \a name, using the - given \a mode to resolve the property. - - \sa property() -*/ -QScriptValue::PropertyFlags QScriptValue::propertyFlags(const QScriptString &name, - const ResolveFlags &mode) const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - if (!name.isValid()) - return 0; - QScriptStringPrivate *s = QScriptStringPrivate::get(name); - return d->value.propertyFlags(s->nameId, mode); -} - -/*! - Calls this QScriptValue 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 QScriptValue is not a function, call() does nothing - and returns an invalid QScriptValue. - - Note that if \a thisObject is not an object, the global object - (see \l{QScriptEngine::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 - QScriptEngine::hasUncaughtException() to determine if an exception - occurred. - - \snippet doc/src/snippets/code/src_script_qscriptvalue.cpp 2 - - \sa construct() -*/ -QScriptValue QScriptValue::call(const QScriptValue &thisObject, - const QScriptValueList &args) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - if (isFunction() && thisObject.isValid() && thisObject.engine() && - engine() && (thisObject.engine() != engine())) { - qWarning("QScriptValue::call() failed: " - "cannot call function with thisObject created in " - "a different engine"); - return QScriptValue(); - } - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.call(eng->toImpl(thisObject), - eng->toImplList(args))); -} - -/*! - Calls this QScriptValue as a function, using \a thisObject as - the `this' object in the function call, and passing \a arguments - as arguments to the function. Returns the value returned from - the function. - - If this QScriptValue is not a function, call() does nothing - and returns an invalid QScriptValue. - - \a arguments can be an arguments object, an array, null or - undefined; any other type will cause a TypeError to be thrown. - - Note that if \a thisObject is not an object, the global object - (see \l{QScriptEngine::globalObject()}) will be used as the - `this' object. - - One common usage of this function is to forward native function - calls to another function: - - \snippet doc/src/snippets/code/src_script_qscriptvalue.cpp 3 - - \sa construct(), QScriptContext::argumentsObject() -*/ -QScriptValue QScriptValue::call(const QScriptValue &thisObject, - const QScriptValue &arguments) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - if (isFunction() && thisObject.isValid() && thisObject.engine() - && (thisObject.engine() != engine())) { - qWarning("QScriptValue::call() failed: " - "cannot call function with thisObject created in " - "a different engine"); - return QScriptValue(); - } - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.call(eng->toImpl(thisObject), - eng->toImpl(arguments))); -} - -/*! - Creates a new \c{Object} and calls this QScriptValue 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 QScriptValue is not a function, construct() does nothing - and returns an invalid QScriptValue. - - 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 - QScriptEngine::hasUncaughtException() to determine if an exception - occurred. - - \sa call(), QScriptEngine::newObject() -*/ -QScriptValue QScriptValue::construct(const QScriptValueList &args) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.construct(eng->toImplList(args))); -} - -/*! - Creates a new \c{Object} and calls this QScriptValue as a - constructor, using the created object as the `this' object and - passing \a arguments 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 QScriptValue is not a function, construct() does nothing - and returns an invalid QScriptValue. - - \a arguments can be an arguments object, an array, null or - undefined. Any other type will cause a TypeError to be thrown. - - \sa call(), QScriptEngine::newObject(), QScriptContext::argumentsObject() -*/ -QScriptValue QScriptValue::construct(const QScriptValue &arguments) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.construct(eng->toImpl(arguments))); -} - -/*! - Returns the QScriptEngine that created this QScriptValue, - or 0 if this QScriptValue is invalid or the value is not - associated with a particular engine. -*/ -QScriptEngine *QScriptValue::engine() const -{ - Q_D(const QScriptValue); - if (!d) - return 0; - return d->engine; -} - -/*! - \obsolete - - Use isBool() instead. -*/ -bool QScriptValue::isBoolean() const -{ - Q_D(const QScriptValue); - return d && d->value.isBoolean(); -} - -/*! - \since 4.5 - - Returns true if this QScriptValue is of the primitive type Boolean; - otherwise returns false. - - \sa toBool() -*/ -bool QScriptValue::isBool() const -{ - Q_D(const QScriptValue); - return d && d->value.isBoolean(); -} - -/*! - Returns true if this QScriptValue is of the primitive type Number; - otherwise returns false. - - \sa toNumber() -*/ -bool QScriptValue::isNumber() const -{ - Q_D(const QScriptValue); - return d && d->value.isNumber(); -} - -/*! - Returns true if this QScriptValue is of the primitive type String; - otherwise returns false. - - \sa toString() -*/ -bool QScriptValue::isString() const -{ - Q_D(const QScriptValue); - return d && d->value.isString(); -} - -/*! - Returns true if this QScriptValue is a function; otherwise returns - false. - - \sa call() -*/ -bool QScriptValue::isFunction() const -{ - Q_D(const QScriptValue); - return d && d->value.isFunction(); -} - -/*! - Returns true if this QScriptValue is of the primitive type Null; - otherwise returns false. - - \sa QScriptEngine::nullValue() -*/ -bool QScriptValue::isNull() const -{ - Q_D(const QScriptValue); - return d && d->value.isNull(); -} - -/*! - Returns true if this QScriptValue is of the primitive type Undefined; - otherwise returns false. - - \sa QScriptEngine::undefinedValue() -*/ -bool QScriptValue::isUndefined() const -{ - Q_D(const QScriptValue); - return d && d->value.isUndefined(); -} - -/*! - Returns true if this QScriptValue 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 QScriptEngine::toObject(), QScriptEngine::newObject() -*/ -bool QScriptValue::isObject() const -{ - Q_D(const QScriptValue); - return d && d->value.isObject(); -} - -/*! - Returns true if this QScriptValue is a variant value; - otherwise returns false. - - \sa toVariant(), QScriptEngine::newVariant() -*/ -bool QScriptValue::isVariant() const -{ - Q_D(const QScriptValue); - return d && d->value.isVariant(); -} - -/*! - Returns true if this QScriptValue is a QObject; otherwise returns - false. - - Note: This function returns true even if the QObject that this - QScriptValue wraps has been deleted. - - \sa toQObject(), QScriptEngine::newQObject() -*/ -bool QScriptValue::isQObject() const -{ - Q_D(const QScriptValue); - return d && d->value.isQObject(); -} - -/*! - Returns true if this QScriptValue is a QMetaObject; otherwise returns - false. - - \sa toQMetaObject(), QScriptEngine::newQMetaObject() -*/ -bool QScriptValue::isQMetaObject() const -{ - Q_D(const QScriptValue); - return d && d->value.isQMetaObject(); -} - -/*! - Returns true if this QScriptValue is valid; otherwise returns - false. -*/ -bool QScriptValue::isValid() const -{ - Q_D(const QScriptValue); - return d && d->value.isValid(); -} - -/*! - \since 4.4 - - Returns the internal data of this QScriptValue object. QtScript uses - this property to store the primitive value of Date, String, Number - and Boolean objects. For other types of object, custom data may be - stored using setData(). -*/ -QScriptValue QScriptValue::data() const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return QScriptValue(); - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - return eng->toPublic(d->value.internalValue()); -} - -/*! - \since 4.4 - - Sets the internal \a data of this QScriptValue object. You can use - this function to set object-specific data that won't be directly - accessible to scripts, but may be retrieved in C++ using the data() - function. -*/ -void QScriptValue::setData(const QScriptValue &data) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return; - QScriptEnginePrivate *eng = QScriptEnginePrivate::get(engine()); - d->value.setInternalValue(eng->toImpl(data)); -} - -/*! - \since 4.4 - - Returns the custom script class that this script object is an - instance of, or 0 if the object is not of a custom class. - - \sa setScriptClass() -*/ -QScriptClass *QScriptValue::scriptClass() const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return 0; - QScriptClassInfo *info = d->value.classInfo(); - if ((info->type() & QScriptClassInfo::TypeMask) < QScriptClassInfo::CustomType) - return 0; - return QScriptClassPrivate::classFromInfo(info); -} - -/*! - \since 4.4 - - Sets the custom script class of this script object to \a scriptClass. - This can be used to "promote" a plain script object (e.g. created - by the "new" operator in a script, or by QScriptEngine::newObject() in C++) - to an object of a custom type. - - If \a scriptClass is 0, the object will be demoted to a plain - script object. - - \sa scriptClass(), setData() -*/ -void QScriptValue::setScriptClass(QScriptClass *scriptClass) -{ - Q_D(QScriptValue); - if (!d || !d->value.isObject()) - return; - if (!scriptClass) { - QScriptEnginePrivate *eng_p = QScriptEnginePrivate::get(engine()); - d->value.setClassInfo(eng_p->m_class_object); - } else { - QScriptClassPrivate *cls_p = QScriptClassPrivate::get(scriptClass); - d->value.setClassInfo(cls_p->classInfo()); - } -} - -/*! - \internal - - Returns the ID of this object, or -1 if this QScriptValue is not an - object. - - \sa QScriptEngine::objectById() -*/ -qint64 QScriptValue::objectId() const -{ - Q_D(const QScriptValue); - if (!d || !d->value.isObject()) - return -1; - return d->value.m_object_value->m_id; -} - -QT_END_NAMESPACE - -#endif // QT_NO_SCRIPT |