Proposal: Extensible exceptions

Henning Thielemann lemming at
Mon Jul 7 08:58:41 EDT 2008

On Mon, 7 Jul 2008, Yitzchak Gale wrote:

> Henning Thielemann wrote:
>>>  In Modula-3 you have to add the exceptions that can be raised to a
>>> PROCEDURE header. Java has adopted this mechanism.
> Johan Tibell wrote:
>> Many people argue that this was a mistake
> Whether you like it or not, we have this already for pure
> exceptions. The type system requires it for Either
> and ErrorT.

... and I think, that's a good design.

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