Question/proposal for USE_MAPPED_LOCATION and Ada

[Geert Bosch]

Steven,

You mentioned in an earlier email that the Fortran compiler
has a line map as well. A quick look at the sources seems
to indicate that Fortran already has a locus allocated for
every position, and langhook as described by Richard could
be trivially implemented by using an indirection. Does
that seem correct to you?

As Zack mentioned, having two isomorphic representations of the
same thing wastes time and space, so it would be nice to avoid
using line-map for those front ends that do not need it.

   -Geert

On Oct 6, 2004, at 16:23, Richard Kenner wrote:
> If so, then it would seem the simplest approach is to an a
> LANGHOOK_EXPAND_LOCATION which defaults to calling expand_location but
> for Ada would point to essentially what is now Sloc_to_locus.  It seems
> to me that this would be a very tiny piece of code everywhere and would
> completely avoid the need for redundant source position tables (note
> that what's in linemap.c is very C-centric in its use of terms like 
> include
> files).