My own print function in Qt Script

[zack]

I dont know why, but nothing is printed to my QtScript Debugger console, does anybody know why?

QScriptValue Debug_Function(QScriptContext *ctx, QScriptEngine *)
 {
        QString result;
        for (int i = 0; i < ctx->argumentCount(); ++i)
		{
            if (i != 0)
                result.append(QLatin1String(" "));
 
            QString s = ctx->argument(i).toString();
            if (ctx->state() == QScriptContext::ExceptionState)
                break;
            result.append(s);
        }
	return ctx->engine()->toScriptValue(result);
}

QScriptValue Debug_Function(QScriptContext *ctx, QScriptEngine *)
 {
        QString result;
        for (int i = 0; i < ctx->argumentCount(); ++i)
		{
            if (i != 0)
                result.append(QLatin1String(" "));

            QString s = ctx->argument(i).toString();
            if (ctx->state() == QScriptContext::ExceptionState)
                break;
            result.append(s);
        }
	return ctx->engine()->toScriptValue(result);
}

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QScriptValue dfunc = engine.newFunction(Debug_Function);
 
engine.globalObject().setProperty("debug", dfunc);

QScriptValue dfunc = engine.newFunction(Debug_Function);
    
engine.globalObject().setProperty("debug", dfunc);

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[seneca]

How about this:

QScriptValue Debug_Function(QScriptContext *ctx, QScriptEngine *)
 {
        QString result;
        for (int i = 0; i < ctx->argumentCount(); ++i)
		{
            if (i != 0)
                result.append(QLatin1String(" "));
 
            QString s = ctx->argument(i).toString();
            if (ctx->state() == QScriptContext::ExceptionState)
                break;
            result.append(s);
        }
        qDebug() << result;
	return ctx->engine()->toScriptValue(result);
}

QScriptValue Debug_Function(QScriptContext *ctx, QScriptEngine *)
 {
        QString result;
        for (int i = 0; i < ctx->argumentCount(); ++i)
		{
            if (i != 0)
                result.append(QLatin1String(" "));

            QString s = ctx->argument(i).toString();
            if (ctx->state() == QScriptContext::ExceptionState)
                break;
            result.append(s);
        }
        qDebug() << result;
	return ctx->engine()->toScriptValue(result);
}

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[zack]

that doesn't work. I did not see the result string in the Qt Script Debugger "Debug Output" widget.

[seneca]

Well the term "debug output" is missleading, actually it does not display debug output but:

The debug output widget shows messages generated by the print() script function. Scripts can use the special variables __FILE__ and __LINE__ to include the current location information in the messages.

So either just use print, or hack the debugger to also redirect debug output to that window.