http://d.puremagic.com/issues/show_bug.cgi?id=2660





------- Comment #10 from bugzilla@digitalmars.com  2009-02-20 21:15 -------
#line can be processed with a simple, stupid tool, but pragmas cannot be, because they are recognized at much later stage.

The idea of recognizing pragma(line) as 'special' in the lexing stage is an
awful hack <g>.


-- 

http://d.puremagic.com/issues/show_bug.cgi?id=2660





------- Comment #11 from tomas@famolsen.dk  2009-02-21 00:05 -------
clobbing up the # character like that is pretty aweful as well!


-- 

http://d.puremagic.com/issues/show_bug.cgi?id=2660





------- Comment #12 from clugdbug@yahoo.com.au  2009-02-21 04:41 -------
Like Thomas, I think the existing #line is already a hack. The whole concept of #line is not pretty. The fact that the # character used only in this one place in the language is pretty hard to justify for such a tiny feature, IMHO. As far as I can tell, any sequence of characters could be used for this purpose.

pragma(line) would be an even worse hack from the compiler-writers point of view, since it's making two completely different things look the same, but is it really important to the users to know have a strong visual clue of how this feature is implemented?


-- 

http://d.puremagic.com/issues/show_bug.cgi?id=2660





------- Comment #13 from maxmo@pochta.ru  2009-02-24 02:32 -------
D has entire namespace of tokens __*__ reserved for internal use. How about using it? I don't know at which stage they are processed. They are documented in lexical part of specs. How about this declaration:

SpecialTokenSequence:
        __assume_line__ Integer EndOfLine
        __assume_line__ Integer Filespec EndOfLine

Filespec:
        " Characters "

Any objections? I think, it's a trivial substitution.


--