[cmake-developers] What about #line like feature in cmake language?

[Nicolas Desprès]

On Wed, May 21, 2014 at 9:31 PM, Matthew Woehlke <
mw_triad at users.sourceforge.net> wrote:

> On 2014-05-21 15:24, Nicolas Desprès wrote:
> > On Wed, May 21, 2014 at 8:06 PM, Matthew Woehlke wrote:
> >> On 2014-05-15 08:36, Ben Boeckel wrote:
> >>> This will also likely need a policy since there's no guarantee that
> >>> #line "directives" don't exist in already existing code as comments.
> >>
> >> Maybe we should not introduce pragma-like constructs that are
> >> indistinguishable from comments? :-)
> >>
> >> TBH I'd be a little ambivalent about such a feature. A line pragma
> >> itself isn't too bad, but opening the door for other types of pragmas
> >> makes me a little more nervous :-).
> >
> > If it is possible I would rather prefer a cmake macro too.
>
> I don't see why not... in fact it may be easier, since you won't have to
> fiddle with the parsing at all.
>
Maybe because at the time the AST node is created the file location is
frozen. Locations are controlled by the lexer so do comments. I am not
exactly sure because I have not written a parser since a while. CMake's
folk would confirm or not.

-- 
Nicolas Desprès
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