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Subject: Re: community-based compiler (was Re: What exactly is the
 licensing situation with GNAT?)
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Date: 2014-11-14T10:13:56-07:00
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I agree with you that there ought to be another open-source 
freely-available Ada compiler -- I started some work on one a while back 
but didn't get too far (other things came up), but there are some things 
that I think we ought to consider essential:

* Tools -- We cannot accept the current norm as acceptable; we need a 
setup that is not so fragile that installing it in an unexpected place 
ruins it.
* The Library -- I've become convinced that the library model really is 
better than the source-file model, especially considering
* Projects -- We need good control for setting up projects and 
subprojects, "related-but-seprate" projects, DSA, managing 'teams', 
source control and so on... and that ties back to tools.

There's a couple interesting papers regarding using databases for 
version-control where the DB is only updated on a consistant state. 
(i.e. you cannot save non-compilable code into the DB.) -- There's also 
some interesting stuff regarding storing source 'code' in Databases. 
(DIANA [Descriptive Intermediate Attributed Notation for Ada], for example.)

There's also the OpenToken project which could be used for the 
tokenizing/parsing.