libgcj and GNU Classpath

Tue Dec 21 15:10:00 GMT 1999

Per> Accessing fields and methods in a convenient way may require
Per> some more magic. I have some ideas. One plausible solution
Per> is to use a pre-processor, that can convert code written in a
Per> more abstract format, to emit eithr JNI or CNI code.
This is what was mentioned on the Classpath list -- some kind of Perl
script to convert a language of our design into either JNI or CNI
code.
One idea I had was to have gcjh write out stub classes that look just
like their CNI counterparts but which make JNI calls. I don't know if
this is really possible to implement or not. (What about direct field
accesses?)
Per> The ultimate in convenience is to be able to take a JNI file
Per> and "optimize" it to CNI. This might be easiest and best done
Per> in the C++ compiler. It might be easier now that G++ can
Per> represent entire functions as trees.
For me the ultimate would be writing in CNI and having it turn into
JNI on the fly, since CNI is easier to write.
Anyway, I definitely think we must explore these possibilities before
falling back to writing everything twice.
Tom