15 Mar
2009
15 Mar
'09
10:20 a.m.
Hi Alex,
This comes from VW where there is a more elaborated mechanism for
expressing so called User Messages. The two messages used here << and
> are implemented as follows:
Symbol<< aCatalogID
"Create a UserMessage with the receiver as the key, and
the argument as the catalog ID."
^UserMessage
defaultString: nil
key: self
catalogID: aCatalogID
UserMessage<< aSymbol
"This is shorthand for setting the catalog ID"
self catalogID: aSymbol
The UserMessage then takes care of the printing. If this mechanism
does not exist in Squeak, just use a simple string.
Cheers,
Doru
On 11 Mar 2009, at 09:48, Alexandre Bergel wrote:
In this method, there is: #ErrorPrintingTheObject
<< #labels >>
'Error printing the object'
I do not understand what this mean. Why not "self error: 'Error
printing the object'"
?
Cheers,
Alexandre
--
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Alexandre Bergel http://www.bergel.eu
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