[Qt-interest] What QT version is this?

[Rohan McGovern]

On Thursday 15 October 2009 08:48:23 ext Scott Sibley wrote:

> 
> Evaluator.cpp:26: error: passing 'const QScriptValue' as 'this' argument of
>  'void QScriptValue::setProperty(const QString&, const QScriptValue&, const
>  QFlags<QScriptValue::PropertyFlag>&)' discards qualifiers scons: ***
>  [Evaluator.o] Error 1
> 
> void Evaluator::AddFunction(const char *name,
>     QScriptValue (*func)(QScriptContext *ctx, QScriptEngine *eng)) {
>     QString key = name;
>     obj.setProperty(key, engine.newFunction(func),
>  QScriptValue::PropertyGetter); // line 26 }
> 

> newFunction returns a const QScriptValue. I'm confused. Why does it except
>  a non-const QScriptValue, but not the const?

You're looking at the wrong QScriptValue.  The error is: "error: passing 
'const QScriptValue' as 'this' argument of ..."

It's telling you: the problem is you're passing a const QScriptValue as the 
"this" argument to a QScriptValue member function not marked as const.  In 
obj.setProperty(...), obj is the "this" argument.

i.e., at line 26, `obj' is const.  If it's const then you can't set properties 
on it.