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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Adam!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Is this a feature which worked OK in previous versions and went
wrong after some releases?<o:p></o:p></span></p>
<p class=MsoNormal><i><s><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Or is this a newly discovered bug?<o:p></o:p></span></s></i></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I mean: this operation what you described was not tested before?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Csaba<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
gme-users-bounces@list.isis.vanderbilt.edu
[mailto:gme-users-bounces@list.isis.vanderbilt.edu] <b>On Behalf Of </b>Adam
Nagel<br>
<b>Sent:</b> Friday, August 08, 2008 4:31 PM<br>
<b>To:</b> gme-users<br>
<b>Subject:</b> [gme-users] BON2 and subtypes of instances<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>We
are encountering problems using BON2 with subtypes and instances.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Take
models A and B. Instantiate model A into model B, creating A(inst).
Then create a subtype of model B and call it B(sub). Model B(sub) now
contains A(inst)(inst), which seems to be considered an instance of A(inst) by
GME.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Our
interpreter finds A(inst)(inst) within B(sub). We first call
getTypeInhObject() to acquire the TypeInhObject for A(inst)(inst). Then
we call isInstance() on it, which returns true. However, when we call
getType(), we get a null object.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>This
seems like a strange case, so I wanted to see if we’re missing some detail that
prevents us from finding the type of A(inst)(inst). The end goal is to
trace all of the way back to A from A(inst)(inst).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
would be glad to clarify the case if this description is especially confusing. </span><span
style='font-size:10.0pt;font-family:Wingdings'>J</span><span style='font-size:
10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Adam
Nagel<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Staff
Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>ISIS
/ Vanderbilt University<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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