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Date: Mon, 22 Dec 2003 10:08:25 -0500
From: Hyman Rosen <hyrosen@mail.com>
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Date: 2003-12-22T10:08:25-05:00
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Ekkehard Morgenstern wrote:
> This would definitely take more time (understanding all that code,
> plus modifying and porting it), than writing an all-new compiler.
> I like writing compilers and so that will not be a major effort for me.

One of the evolutionary aspects of GNAT is its ability to provide
clear and coherent error messages that direct the programmer's
attention to the most likely problem in an incorrect program. This
has come about through years of feedback, where users of GNAT report
messages which are less than what they would like to see, and GNAT
is augmented to handle those cases.

Without examining GNAT's code, and without access to its test suite,
you will not have the benefit of those feedbacks, and your error
messages will be of low quality.