Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!apple!shebanow
From: shebanow@Apple.COM (Andrew Shebanow)
Newsgroups: comp.sys.mac.programmer
Subject: Re: System 7.0 question
Keywords: System 7.0, MacApp
Message-ID: <32826@apple.Apple.COM>
Date: 2 Jul 89 02:08:31 GMT
References: <964@cnetlu.UUCP> <119@dbase.UUCP> <2402@internal.Apple.COM> <87@runxtsa.runx.oz> <32754@apple.Apple.COM> <2340@pur-phy>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 36

I won't post a full description of the extensions here, but here is
a quick summary of the ones concerning Object Pascal compatibility:

* Classes derived from the builtin class 'PascalObject' are handle
based, and use Object Pascal's method dispatching scheme. Multiple
inheritance is not allowed in PascalObject classes.

* The pascal keyword from MPW C works inside of (or outside of)
class definitions

* You can say inherited::Method() to get at your superclass's
method. This only works for single inheritance classes.

Here is a simple Object Pascal compatible class definition:

class TMyView : public TView {
public:
	virtual pascal Draw();
};

We also added extensions to support SANE, direct function calls,
and other standard MPW C features.

By the way, there is a MPW C++ sample program (CPlusTESample) I wrote
that is available from DTS (via the Sample Code disks), and the source
code should be available from the info-mac archives. Kind of a bummer that
the compiler itself isn't available, but what can I say?

Andrew Shebanow
MacDTS
Andrew Shebanow, Amway Representative
Developer Technical Support, Apple Computer, Inc.
------------------------------------------------------------------------------
INTERNET: shebanow@apple.com
    UUCP: {decwrl, hoptoad, nsc, sun, amdahl}!apple!shebanow