Just for grins, here's the relevant passage from the standard:
5.5.4.5 Message: resume
Synopsis
Return from the message that signaled the receiver.
..
Errors
It is erroneous to directly or indirectly send this message from within a
#defaultAction method
to the receiver of the #defaultAction method.
..
----- Original Message -----
| From: "Dale Henrichs" <
[hidden email]>
| To: "GemStone Seaside beta discussion" <
[hidden email]>
| Sent: Thursday, February 21, 2013 12:02:18 PM
| Subject: Re: [GS/SS Beta] CorruptObj error when signalling a Notification
|
| Paul,
|
| It turns out that using #resume:, #return:, etc. in a default action is
| explicitly called out as illegal in the ANSI standard, so GemStone comforms
| to the standard by throwing an error in this case ... we're wrong to throw a
| CorrupttObj ... we should signal something a lot less dramatic.
|
| The right answer (i.e., conforming to the ANSI standard) is to change
| #defaultAction to explicitly return 2:
|
| MyNotification>>defaultAction
| ^2
|
| Using this style produces the correct behavior in Pharo and GemStone (and
| VW)...
|
| Dale
|
| ----- Original Message -----
| | From: "Paul DeBruicker" <
[hidden email]>
| | To: "GemStone Seaside beta discussion" <
[hidden email]>
| | Sent: Thursday, February 21, 2013 6:13:57 AM
| | Subject: [GS/SS Beta] CorruptObj error when signalling a Notification
| |
| | I'm porting the ical package to Gemstone 3.1.0.1/GLASS 1.0beta9 using
| | GemTools 1.0b7. One of the issues I'm having is that I can't seem to
| | signal a Notification without getting a CorruptObj (2261) error. The
| | identical code works fine in Squeak/Pharo so I'm guessing there is
| | something I don't understand about Gemstone.
| |
| |
| | If you have a subclass of Notification called MyNotification and it only
| | defines this method
| |
| | MyNotification>>defaultAction
| | self resume: 2
| |
| |
| | Then when I printIt/doIt/inspectIt this line
| |
| | MyNotification signal
| |
| |
| | I get a CorruptObj error. In Squeak/Pharo if I printIt I get a 2. Is
| | this a gemstone bug or is there something else I should try? The ical
| | package uses the resume value of the notification in parsing ical files.
| |
| |
| | Thanks
| |
| | Paul
| |
|
Locked
