[Seaside] Exception >> #description vs. messageText portability

Lukas Renggli renggli at gmail.com
Sun Jun 10 07:25:31 UTC 2007

> How do these messages compare from a portability standpoint? Which
> should we use were?

The two are not just synonyms in Squeak. #messageText returns the
string  provided by the singaller or nil, whereas #description returns
an automatically generated print string of the exception. In most
cases it probably makes sense to use #descriptions, but I am not sure
if we also need #messageText.

The exception hierarchy is really painful for portability. For
example: Warning, Notification, Error, Halt is at completely different
places in VW compared to Squeak. Therefor it is almost impossible to
write compatible handlers.


Lukas Renggli

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