compilers storing code outside hierarchical filesystems?

Hello All,


Does anyone know about recent compilers (or programming environments)
which store code outside the ordinary hierarchical filesystem (as
provided by Unix or similar [Windows, Plan9] operating systems)?


I know about old Lisp and Smalltalk machines (which stored code in
their [then huge] virtual memory persistent space). I also know about
Cecil and Self which provided similar environments on Unix.


I heard about some IBM Java? or C++? compiler which stored source code
in some kind of RDBMS but I forgot the details, and welcome any white
paper references. Conceptually this means that the compiler is
integrated in a IDE, or at least an editor, which stores code in the
RDBMS and notify the compiler. This permit smart recompilation (of
only changed functions) - at a finer grain than usual make+compiler
techniques.


I would be specially interested by an opensource implementation
running on Linux (but this probably does not exist, I would have found
it already).


Regards


--


Basile STARYNKEVITCH http://www.starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net
alias: basile<at>tunes<dot>org
8, rue de la Faïencerie, 92340 Bourg La Reine, France

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