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QScriptString Class Reference
[QtScript module]

The QScriptString class acts as a handle to "interned" strings in a QScriptEngine. More...

 #include <QScriptString>

This class is not part of the Qt GUI Framework Edition.

This class was introduced in Qt 4.4.


Public Functions

QScriptString ()
QScriptString ( const QScriptString & other )
~QScriptString ()
bool isValid () const
quint32 toArrayIndex ( bool * ok = 0 ) const
QString toString () const
operator QString () const
bool operator!= ( const QScriptString & other ) const
QScriptString & operator= ( const QScriptString & other )
bool operator== ( const QScriptString & other ) const

Detailed Description

The QScriptString class acts as a handle to "interned" strings in a QScriptEngine.

QScriptString can be used to achieve faster (repeated) property getting/setting, and comparison of property names, of script objects.

To get a QScriptString representation of a string, pass the string to QScriptEngine::toStringHandle(). The typical usage pattern is to register one or more pre-defined strings when setting up your script environment, then subsequently use the relevant QScriptString as argument to e.g. QScriptValue::property().

Call the toString() function to obtain the string that a QScriptString represents.

Call the toArrayIndex() function to convert a QScriptString to an array index. This is useful when using QScriptClass to implement array-like objects.


Member Function Documentation

QScriptString::QScriptString ()

Constructs an invalid QScriptString.

QScriptString::QScriptString ( const QScriptString & other )

Constructs a new QScriptString that is a copy of other.

QScriptString::~QScriptString ()

Destroys this QScriptString.

bool QScriptString::isValid () const

Returns true if this QScriptString is valid; otherwise returns false.

quint32 QScriptString::toArrayIndex ( bool * ok = 0 ) const

Attempts to convert this QScriptString to a QtScript array index, and returns the result.

If a conversion error occurs, *ok is set to false; otherwise *ok is set to true.

This function was introduced in Qt 4.6.

QString QScriptString::toString () const

Returns the string that this QScriptString represents, or a null string if this QScriptString is not valid.

See also isValid().

QScriptString::operator QString () const

Returns the string that this QScriptString represents, or a null string if this QScriptString is not valid.

See also toString().

bool QScriptString::operator!= ( const QScriptString & other ) const

Returns true if this QScriptString is not equal to other; otherwise returns false.

QScriptString & QScriptString::operator= ( const QScriptString & other )

Assigns the other value to this QScriptString.

bool QScriptString::operator== ( const QScriptString & other ) const

Returns true if this QScriptString is equal to other; otherwise returns false.


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Qt 4.6.3