[Oberon] Safe module unloading (was: Re: Oberon for a C++ user.)

[chris]

On Fri, 7 Oct 2016 00:30:08 +0200, Andreas Pirklbauer wrote:
> Solution #2 ('check for references and don't unload if there are 
> any') is implemented in Experimental Oberon, eliminating inadvertent 
> references to unloaded modules via installed procedures.

Looks very good and not too difficult. Do you have some experience how 
it works in practice? Does the problem occur, that you cannot unload 
and cannot fix it?

My suspicion was, that if you want to unload a set of related modules 
they would block each other. That's why I suggested (yesterday I think) 
to postpone the refusal until reload time, so that you could unload a 
bunch of modules.

Greetings, chris