[Xotcl] Fwd: Re: namespace in constructor referring an instvar?

From: Gustaf Neumann <neumann_at_wu.ac.at>
Date: Wed, 16 Mar 2011 14:07:50 +0100

Dear Tuyen,

Most likely, you want something like the following (see below). Adding
additional namespaces makes things more complicated. Creating procs from
a constructor is as well a rather unusual construction, normally you
want to define methods accessing the instance variables...

best regards
-gustaf neumann

===================
Class create MatlabInterface -parameter {iss}
MatlabInterface instproc ok {} {
   my instvar iss
   tk_messageBox -type ok -icon info -title "MicWatch" -message $iss
}

MatlabInterface i1 -iss Hello?
i1 ok
===================

Am 16.03.11 13:40, schrieb Tuyen Hoang:
> Can anyone tell me how to refer an instvar from within a namespace defined
> inside a class constructor? With my attempt below the $iss in the tk_messageBox
> line is undefined.
>
> Class create MatlabInterface
>
> MatlabInterface instproc init {} {
> my instvar iss
> namespace eval MicWatch {
> proc add {} {
> tk_messageBox -type ok -icon info -title "MicWatch" -message
> "$iss"
> }
> }
> }
>
> I’m new to Tcl, let alone XOTcl, and don’t know how to search the posts in the
> mailing list so forgive me if the question has been asked before.
>
> Regards,
>
> Tuyen
>
>
>
>
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-- 
Univ.Prof. Dr. Gustaf Neumann
Institute of Information Systems and New Media
WU Vienna
Augasse 2-6, A-1090 Vienna, AUSTRIA