Re: Implementing classes

kszabo@bcml120x.ca.nortel.com (Kevin Szabo)
10 Sep 2005 12:33:51 -0400

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From: kszabo@bcml120x.ca.nortel.com (Kevin Szabo)
Newsgroups: comp.compilers
Date: 10 Sep 2005 12:33:51 -0400
Organization: Nortel, Carling Campus
References: 05-09-011
Keywords: OOP
Posted-Date: 10 Sep 2005 12:33:51 EDT

If you are creating a 'new' language you should look hard at the goals
you are trying to achieve. If it is to just learn about the process,
then please have a look at 'little smalltalk' by Timothy Bud. It is a
*small* implementation of smalltalk, a pure OO language.


If you want to see how to turn C into an OO language (but not C++) you
may want to look at Brad Cox's book:


Object-oriented programming: An evolutionary approach by Brad J Cox


http://net.gurus.com/bk/a/0201103931


Although an older book, it is an excellent introduction because it
doesn't assume the reader has OO experience. It tells you about ISA
and KINDOF and SUBCLASS/SUPERCLASS; all good stuff.


And finally, if you are trying to contribute to the state of the art,
by creating a new language to solve interesting problems, you should
read all that you can. Smalltalk the language and implementation.
The C++ book by Stroustrup, the JAVA whitepapers. RUBY. Python. Try
programming in the languages.


Have fun!
Kevin Szabo
[It describes Objective C, originally written as a preprocessor that
compiled into plain C, now available as part of the GCC suite. It's
a nice language, less ambitions than C++ and without C++'s barocities.
-John]


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