On 23.06.2015, at 23:23, Chris Muller <asqueaker at gmail.com> wrote:

>> Why not vice versa? Halt being a Warning would be more natural to me than Warning being
>> a Halt.
> 
> We really should structure the class hierarchy based on the exception
> handling use-cases we want to support, not semantics.  If Halt
> inherited from Warning, then applications would no longer be able to
> halt separately from handling Warnings (except by handling Halt too,
> no way!).

Then they should be siblings in any case.
Best regards
	-Tobias