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From: lsr@Apple.com (Larry Rosenstein)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Another THINK Pascal gotcha - "With" instance vars
Message-ID: <11905@goofy.Apple.COM>
Date: 29 Jan 91 23:02:36 GMT
References: <1991Jan25.233122.2825@fennel.cc.uwa.oz.au> <1991Jan25.234200.7536@santra.uucp> <1991Jan29.021127.2840@fennel.cc.uwa.oz.au>
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In article <1991Jan29.021127.2840@fennel.cc.uwa.oz.au>, a_dent@fennel.cc.uwa.oz.au writes:
> 
> I know about "with" and the dangers of handles etc.  The big point was that 
> you can take some perfectly safe code (using "with" on structures that are
> local variables) and if you put it into an Object Pascal method, operating o

There's nothing in the definition of Object Pascal that requires that these
WITH statements be dangerous.  MPW Pascal handles this properly; it doesn't
load the dereferenced handle into a register, it dereferences it as necessary.