Ada, treelang needs to be converted to --enable-mapped-location

[Steven Bosscher]

On Thursday 07 October 2004 04:31, Mark Mitchell wrote:
> Richard Kenner wrote:
> >My proposal is basically to take the view that source_location is an
> > unsigned int that's an opaque datatype used to encode a (file, line
> > column) triple. This datatype can either be defined in the front end (in
> > which case it provides a language hook to produce that triple from the
> > encoding) or it can use routines provided in line-map.c to generate the
> > encoding.
>
> If you can do this in a way that does not make the non-Ada case go
> measuably slower, that seems OK.  If the indirection required is costly,
> then your proposal is lessa ttractive.

I humbly disagree, it is not OK.

With this idea, we lock ourselves in with the Ada front end, so if
we at one point, for whatever reason, decide that source_location
should be something other than a "32-bit opaque data type", we first
have to go through all this again to get the Ada representation
changed as well.

IMHO the proper solution is to do the translation in gigi.

Gr.
Steven