I get a failed assertion when doing this:

void Main() { ref@ a = "a"; }

The assertion:

asASSERT(expr->type.dataType.IsObjectHandle());

Maybe my version of ref isn't the latest version, but I think this might be a core Angelscript issue. Originally this was reported here: https://github.com/openplanet-nl/issues/issues/547 

Yes, asASSERT failures are almost always an issue within AngelScript. It is usually due to some invalid script (which is the case here as well) that I have not predicted in my regression test suite.

I'll investigate and fix it so a proper compiler error is given instead of an asASSERT failure.

Thanks for the report.

I've fixed this issue in revision 2953.

https://sourceforge.net/p/angelscript/code/2953/

Regards,
Andreas