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- Path: sparky!uunet!stanford.edu!apple!applelink.apple.com
- From: B.HABLUTZEL@AppleLink.Apple.COM (Hablutzel, Bob,CST)
- Newsgroups: comp.sys.mac.oop.macapp3
- Subject: Re: Bedrock News
- Message-ID: <724690974.8029548@AppleLink.Apple.COM>
- Date: 18 Dec 92 14:55:00 GMT
- Sender: daemon@Apple.COM
- Organization: AppleLink Gateway
- Lines: 93
-
- Ramon, et al.
-
- > My vision of this project is more along the lines of a blend between a
- > conventional compiled language and an interpreted language. It seems that
- > many of the promises of OOP fall apart when forced into a conventional C (or
- > Pascal or what have you) development environment.
-
- > ... more perfectly correct complaints about OO development today
-
-
- My, what a timely link. I just got back from spending the last three days
- working with has the potential to be the most wickedly cool development
- environment I have seen in some time. It is specifically geared to address the
- problems you talk about, as well as a number of others.
-
- I like to be careful when it comes to new environments, but after seeing this
- environment I feel like I just saw the Mac for the first time, in 1983. This
- is very cool stuff.
-
- The environment is Component Workshop (CW). It is delivering today what Dylan
- is promising for the future, and the future is going to be fun. Long compiles
- are killed off by an incremental compiler/linker. Applications can be debugged
- _and modified_ as they are running: you never leave the environment you are
- writing the code in. As a matter of fact, you can directly modify the
- environment itself, if you so choose. On the fly. And see the results
- immediately.
-
- CW is not a traditional environment being used for OOP, like MPW, Think C,
- Borland C++, or their ilk. It is a true object oriented environment, where the
- code and classes you are defining are themselves objects, and can be addressed
- as such. (For example: I had to add a data member to a couple of dozen classes.
- I just wrote some code that asked the classes to add the data member, ran it,
- and the members were there. And the environment went out and changed the
- running instances of those classes for me, on the fly, so that I did not have
- to restart). At first, I thought this was just a small difference, but it
- isn't; it is a completely different way of looking at software development.
-
- CW also takes care of memory management, so I don't have to worry about
- instance deletion. I just keep references to an object around as long as
- needed, and once the references go away, the object does as well. (No more
- early deletion, or memory leaks).
-
- CW is C++ based (more or less), so that I don't have to learn a new language. I
- say more or less, because there are differences between CW C++ and USL C++, so
- code will not directly port over. But at least I don't have to learn a new
- syntax. There is a lot of differences in the way C++ is used than we are used
- to (a heavy dependence on the envelope/letter metaphor, for example), but a lot
- of that can be ignored if you don't care about details.
-
- CW does have a framework built in, and they claim it will be ported to Windows
- soon. We'll see. Right now, it is not as strong a framework as MacApp, but they
- seem to realize that this end of the product needs to be strengthed, and are
- working on it. Not that the framework is bad, just that it is not as feature
- laden as MacApp. Some of our favorite MacApp features can be added quickly, I
- think, so I remain optimistic. (I added Behaviors, for example, in about 8
- hours. Again, the applications I already had around got Behaviors instantly,
- without having to be rebuilt. Wicked).
-
- The other piece of CW that is currently weak are the support tools,
- specifically in the area of view editors. I do know this is being worked on,
- but I don't know if I can talk about that...
-
- Like Dylan, CW promises to be able to remove the finished application from the
- environment, so you don't have to carry around the 16M of environment. They are
- claiming MacApp-like sizes for stand-alone applications, circa 350K for a
- nothing application. This is heresay as far as I am concerned at this point,
- because I did not actually get a chance to test the extruder (as they call the
- piece that does this). However, these are sharp people, and I have no real
- reason do doubt that they will come in somewhere around that. If you are
- waiting for Dylan, and especially if you are waiting for Dylan and are leery of
- that Lispy syntax, you owe it to yourself to look at CW.
-
- One last point: in CW, you can have that nothing application up and running,
- with a full Mac interface, from scratch, in about a minute.
-
- So: At this point, without seeing or playing with Bedrock, I would probably
- start new cross-platform projects in CW, and new Mac specific projects in
- MacApp. It would be hard, though; going back to MPW at this point is going to
- be a painful experience. If CW can deliver on their promise of MacApp like
- functionality, then I would use CW for everything.
-
- Until, of course, something better comes along ;-)
-
-
- Bob
-
-
-
- Bob Hablutzel
- Hablutzel Consulting
- ALink: B.HABLUTZEL
- Phone: 708 328 0130
-
-