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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Jay:<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'>Note that Modula-3 also has partial revelation.<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'>(BTW, I like the design tenants of Modula-3. I believe in them and have been successful using them. This is a Modula-3 forum. I know you seem to like C++, but I grow weary of the barrage of C/C++ from you. I would like to see less criticism of Modula-3 and more of how we are going to keep the CM3 implementation evolving toward the best implementation of the language specification possible on a wide array of modern platforms. If there is a perceived need for a language change, a specific proposal should be presented and vetted as a separate thread of discussion. My 2 cents.)<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'>--Randy Coleburn<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'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><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"'> jayk123@hotmail.com [mailto:jayk123@hotmail.com] <b>On Behalf Of </b>Jay K<br><b>Sent:</b> Thursday, September 27, 2012 1:14 AM<br><b>To:</b> Tony<br><b>Cc:</b> m3devel<br><b>Subject:</b> EXT:Re: [M3devel] M3CG_Ops.Public vs. M3CG.T<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>No. I'm ok with that.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>My point is, that basically, there are two really good forms of<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>interface that have the right level of revelation and hiding.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>I don't see much point for in-between.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>The two forms..they are kind of canonical C and C++ forms, but<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>they both map to Modula-3.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>One form is a fully opaque type and a bunch of functions<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>that take that type as the first parameter.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Like this:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> struct Window_t; <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> typedef struct Window_t* Window_t; <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> Window_t* Window_Create(...); /* create is special -- first parameter<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> isn't Window_t* */ <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> void Window_Close(Window_t*...); <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> void Window_SetTitle(Window_t*...); <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> TEXT Window_GetTitle(Window_t*...); <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>It maps directly to Modula-3.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Though I'm not sure exactly how.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Window.i3:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>INTERFACE Window;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>TYPE T <: ROOT;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>PROCEDURE Close(T);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>PROCEDURE SetTitle(T, TEXT);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>PROCEDURE GetTitle(T): TEXT;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>The other form is a bunch of pure virtual functions, no<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>data, no non-virtual functions. This is what COM prescribes.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>And "Create" is special.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>struct Window_t<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>{<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> virtual void Close() = 0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> virtual void SetTitle(TEXT) = 0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> virtual TEXT GetTitle() = 0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>};<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Window_t* Window_Create(...);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>This maps well to Modula-3 as well:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Window.i3:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>T <: OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> METHODS<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> PROCEDURE Close();<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> PROCEDURE SetTitle(TEXT);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> PROCEDURE GetTitle(): TEXT;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>END;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>The in-between, which I'm not sure is all that worthwhile,<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>is where C++ offers "protected", and "worse", "private".<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Really "private" doesn't belong in a header.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>In the case of M3CG, I don't think we have any need for in-between.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>I think currently clients either know it is <: ROOT or <: Ops.Public.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>I don't see the point in hiding <: Ops.Public.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>You might as well let every client know that.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>They just pass them around by value/reference, and not call<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>any methods/member-functions, but I don't see that hiding<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>them helps anything.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Typical "operating system" interfaces look like what I showed first,<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>except that Window_t* is replaced by "int" or "void*". Which I think is<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>mostly inferior. void* at least allows for basically the same implementation<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>strategies, including casting it to int and indexing into a table, but<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>having different pointer types allows for a little bit of type-safety<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>in the clients (i.e. avoiding passing a Windows_t* to File_Read).<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> - Jay<o:p></o:p></span></p></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><br><br><br><o:p></o:p></span></p><div><div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span style='font-family:"Calibri","sans-serif"'><hr size=2 width="100%" align=center id=stopSpelling></span></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>From: <a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a><br>Date: Wed, 26 Sep 2012 15:53:26 -0400<br>To: <a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>CC: <a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a><br>Subject: Re: [M3devel] M3CG_Ops.Public vs. M3CG.T<br><br>Are you saying that you don’t like importing M3CG as well as M3CG_Ops?<br><br><o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>On Sep 26, 2012, at 3:30 PM, Jay <<a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a>> wrote:<o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Ok but this seems not great..<br><br> - Jay (briefly/pocket-sized-computer-aka-phone)<o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><br>On Sep 26, 2012, at 8:58 AM, Antony Hosking <<a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a>> wrote:<o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Yes, M3CG.T is the most abstract type.<o:p></o:p></span></p><div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Please don’t make this change.<o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>On Sep 26, 2012, at 11:36 AM, Jay K <<a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a>> wrote:<o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>It is not pervasive.<o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>It is like one line in about six files. M3CG.T => M3CG_Ops.Publics.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>I guess you are saying that M3CG.T is merely the extremely abstract ROOT, where M3CG_Ops.Public has a bunch of methods? Then I might argue that M3CG.T is overly abstract -- it is like void* instead of pointer just with a bunch of methods.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>This isn't quite right, doesn't compilte, but rougly:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_BinRd.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_BinRd.i3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.2<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.2 M3CG_BinRd.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_BinRd.i3<span class=ecxapple-tab-span> </span>12 Feb 2001 15:25:47 -0000<span class=ecxapple-tab-span> </span>1.2<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_BinRd.i3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:32 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -3,9 +3,9 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> INTERFACE M3CG_BinRd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-IMPORT M3CG, Rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+IMPORT M3CG_Ops, Rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE Inhale (rd: Rd.T; cg: M3CG.T);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE Inhale (rd: Rd.T; cg: M3CG_Ops.Public);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (* Parse the binary intermediate code M3CG calls from 'rd'<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> and call 'cg' to implement them. *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_BinRd.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_BinRd.m3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.19<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.19 M3CG_BinRd.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_BinRd.m3<span class=ecxapple-tab-span> </span>4 Sep 2012 14:29:54 -0000<span class=ecxapple-tab-span> </span>1.19<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_BinRd.m3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:32 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -20,7 +20,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> TYPE<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> State = RECORD<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> rd : Rd.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>- cg : M3CG.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+ cg : M3CG_Ops.Public;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf : InputBuffer;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf_len: CARDINAL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf_ptr: CARDINAL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -200,7 +200,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> Cmd {Bop.fetch_and_xor, fetch_and_xor}<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> };<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE Inhale (rd: Rd.T; cg: M3CG.T) =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE Inhale (rd: Rd.T; cg: M3CG_Ops.Public) =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> VAR s: State; op: M3CG.Name; cmd: INTEGER;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> BEGIN<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> s.rd := rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_BinWr.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_BinWr.i3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.2<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.2 M3CG_BinWr.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_BinWr.i3<span class=ecxapple-tab-span> </span>12 Feb 2001 15:25:47 -0000<span class=ecxapple-tab-span> </span>1.2<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_BinWr.i3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:32 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -3,9 +3,9 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> INTERFACE M3CG_BinWr;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-IMPORT M3CG, Wr;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+IMPORT M3CG_Ops, Wr;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE New (wr: Wr.T): M3CG.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE New (wr: Wr.T): M3CG_Ops.Public;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (* returns a fresh, initialized code generator that writes its<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> calls as binary intermediate code on 'wr'. See M3CG_Binary<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> for the binary format. *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_BinWr.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_BinWr.m3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.23<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.23 M3CG_BinWr.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_BinWr.m3<span class=ecxapple-tab-span> </span>4 Sep 2012 15:20:09 -0000<span class=ecxapple-tab-span> </span>1.23<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_BinWr.m3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:32 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -27,7 +27,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> END;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> TYPE<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>- U = M3CG.T OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+ U = M3CG_Ops.Public OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> wr : Wr.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf : M3Buf.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf_len : INTEGER := 0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -375,7 +375,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (*---------------------------------------------------------------------------*)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE New (output: Wr.T): M3CG.T =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE New (output: Wr.T): M3CG_Ops.Public =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> VAR mbuf := M3Buf.New ();<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> BEGIN<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> M3Buf.AttachDrain (mbuf, output);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_Check.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Check.i3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.1.1.1<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.1.1.1 M3CG_Check.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Check.i3<span class=ecxapple-tab-span> </span>14 Jan 2001 13:40:37 -0000<span class=ecxapple-tab-span> </span>1.1.1.1<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Check.i3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:32 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -7,11 +7,11 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> INTERFACE M3CG_Check;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-IMPORT M3CG;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+IMPORT M3CG_Ops;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE New (child: M3CG.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE New (child: M3CG_Ops.Public;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> clean_jumps, clean_stores: BOOLEAN;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>- nested_calls, nested_procs: BOOLEAN): M3CG.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+ nested_calls, nested_procs: BOOLEAN): M3CG_Ops.Public;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (* returns a fresh, initialized code generator that passes its calls<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> to 'child' and checks that the stream obeys the M3CG restrictions.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> If 'clean_jumps', it also checks that the stack is empty at every<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_Check.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Check.m3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.17<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.17 M3CG_Check.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Check.m3<span class=ecxapple-tab-span> </span>4 Sep 2012 14:47:43 -0000<span class=ecxapple-tab-span> </span>1.17<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Check.m3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:33 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -32,7 +32,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> };<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> TYPE<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>- U = M3CG.T OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+ U = M3CG_Ops.Public OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> clean_stores := FALSE;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> clean_jumps := FALSE;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> nested_calls := TRUE;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Ops.i3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.12<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.12 M3CG_Ops.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Ops.i3<span class=ecxapple-tab-span> </span>16 Aug 2012 13:12:35 -0000<span class=ecxapple-tab-span> </span>1.12<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Ops.i3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:33 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -30,7 +30,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> Public = OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (*------------------------------------------------ READONLY configuration ---*)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-child: M3CG.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+child: Public := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (* The default methods simply call the corresponding method in 'child',<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> hence a vanilla 'M3CG.T' can be used as a filter where you override<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> only the methods of interest. *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_Rd.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Rd.i3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.1.1.1<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.1.1.1 M3CG_Rd.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Rd.i3<span class=ecxapple-tab-span> </span>14 Jan 2001 13:40:37 -0000<span class=ecxapple-tab-span> </span>1.1.1.1<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Rd.i3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:33 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -7,9 +7,9 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> INTERFACE M3CG_Rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-IMPORT M3CG, Rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+IMPORT M3CG_Ops, Rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE Inhale (rd: Rd.T; cg: M3CG.T);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE Inhale (rd: Rd.T; cg: M3CG_Ops.Public);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (* Parse the M3CG calls from 'rd' and call 'cg' to implement them. *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> END M3CG_Rd.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_Rd.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Rd.m3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.15<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.15 M3CG_Rd.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Rd.m3<span class=ecxapple-tab-span> </span>4 Sep 2012 14:52:46 -0000<span class=ecxapple-tab-span> </span>1.15<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Rd.m3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:33 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -22,7 +22,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> TYPE<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> State = RECORD<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> rd : Rd.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>- cg : M3CG.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+ cg : M3CG_Ops.Public;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> ch : CHAR; (* current scan character *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf : InputBuffer;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf_len: CARDINAL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -206,7 +206,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> cmds: IntIntTbl.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> types: IntIntTbl.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE Inhale (rd: Rd.T; cg: M3CG.T) =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE Inhale (rd: Rd.T; cg: M3CG_Ops.Public) =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> VAR s: State; op: M3CG.Name; cmd: INTEGER;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> BEGIN<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> s.rd := rd;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_Wr.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Wr.i3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.1.1.1<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.1.1.1 M3CG_Wr.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Wr.i3<span class=ecxapple-tab-span> </span>14 Jan 2001 13:40:37 -0000<span class=ecxapple-tab-span> </span>1.1.1.1<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Wr.i3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:33 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -7,9 +7,9 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> INTERFACE M3CG_Wr;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-IMPORT M3CG, Wr;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+IMPORT M3CG_Ops, Wr;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE New (wr: Wr.T): M3CG.T;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE New (wr: Wr.T): M3CG_Ops.Public;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (* returns a fresh, initialized code generator that writes its<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> calls as readable ASCII on 'wr'. *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: M3CG_Wr.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>RCS file: /usr/cvs/cm3/m3-sys/m3middle/src/M3CG_Wr.m3,v<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>retrieving revision 1.18<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>diff -u -r1.18 M3CG_Wr.m3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>--- M3CG_Wr.m3<span class=ecxapple-tab-span> </span>22 Aug 2012 14:15:40 -0000<span class=ecxapple-tab-span> </span>1.18<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+++ M3CG_Wr.m3<span class=ecxapple-tab-span> </span>26 Sep 2012 15:34:33 -0000<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -27,7 +27,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> END;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> TYPE<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>- U = M3CG.T OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+ U = M3CG_Ops.Public OBJECT<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> wr : Wr.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf : M3Buf.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> buf_len : INTEGER := 0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>@@ -375,7 +375,7 @@<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> (*---------------------------------------------------------------------------*)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>-PROCEDURE New (output: Wr.T): M3CG.T =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>+PROCEDURE New (output: Wr.T): M3CG_Ops.Public =<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> VAR mbuf := M3Buf.New ();<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> BEGIN<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> M3Buf.AttachDrain (mbuf, output);<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Index: Target.i3<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>===================================================================<o:p></o:p></span></p></div></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> - Jay<o:p></o:p></span></p><div><div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span style='font-family:"Calibri","sans-serif"'><hr size=2 width="100%" align=center id=ecxstopSpelling></span></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>From: <a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a><br>Date: Wed, 26 Sep 2012 10:42:26 -0400<br>To: <a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>CC: <a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a><br>Subject: Re: [M3devel] M3CG_Ops.Public vs. M3CG.T<br><br>I disagree. M3CG.T is more abstract than M3CG_Ops. The revelation of M3CG.T <: M3CG_Ops.Public is in M3CG_Ops. If you want the ops you simply import that interface to get the revelation. Please don’t make pervasive changes in interfaces that some of us are developing against.<o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>On Sep 26, 2012, at 4:11 AM, Jay K <<a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a>> wrote:<o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><div><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>M3CG_Ops.i3:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>child: M3CG.T := NIL;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>(* The default methods simply call the corresponding method in 'child',<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> hence a vanilla 'M3CG.T' can be used as a filter where you override<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> only the methods of interest. *)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>1)<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>I am not keen on fixing this, but I feel this was clearly a mistake.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>M3CG_Ops.Public should have been "purely abstract" with no default<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>implementation.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>M3CG_Filter.T or somesuch could have been as described.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>2) I am fixing:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>M3CG.T is overused.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>Most uses should be M3CG_Ops.Public.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>It is ok to derive from -- though that was a mistake.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>But functions that take or return M3CG.T should really be<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'>taking and returning M3CG_Ops.Public.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'> - Jay<o:p></o:p></span></p></div></div></div></blockquote></div></div></div></div></div></blockquote></div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div></blockquote></div></blockquote></div><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p></div></div></div></body></html>