Re: Overriding property setters

Thanks Jim!  That turns the trick beautifully.

The code ends up looking like this:

template <typename ValType_tt>
void ProxyTypeBase::setPropertyOrPolicy(const std::string &strName, 
    const luabind::object &obj)
{
    boost::optional<ValType_tt> val;

    val = luabind::object_cast_nothrow<ValType_tt>(obj);
    if (val)
    {
        setProperty<ValType_tt>(strName, *val);
        return;
    }
    else
    {
        boost::optional<ControllerPolicy<ValType_tt> *>	policy;

        policy = luabind::object_cast_nothrow<ControllerPolicy<ValType_tt>
*>(obj);
        if (policy)
        {
            setPropertyPolicy(strName,
                static_cast<ControllerPolicy<ValType_tt> *>(*policy));
            return;
        }
    }
	
    std::stringstream strError;

    strError << "Property \"" << strName << "\" must be either " <<
        typeid(ValType_tt).name() << " or " << 
        typeid(ControllerPolicy<ValType_tt>).name();

    throw invalid_argument(strError.str());
}
--
Thomas Nelson  [email protected] 
--------------------------------------------------------------
"If you still have gas, you're not lost".
- French explorer Pierre Frontage.
(M.Frontage was so influential in the exploration of North America many
roads are still named after him.)

> -----Original Message-----
> From: James Porter [mailto:[email protected]]
> Sent: Wednesday, July 15, 2009 9:29 AM
> To: [email protected]
> Subject: Re: [luabind] Overriding property setters
> 
> Thomas Nelson wrote:
> > Is there a way to provide an alternate function binding for property
> > setters?
> 
> You could make your property setter take a luabind::object and then try
> to cast it with object_cast<T>() to the various types you want to handle.
> 
> - Jim




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