[cfe-dev] Clang and code transformation

[Chris Lattner]

On Jan 8, 2009, at 5:23 AM, forumer at smartmobili.com wrote:

> Hi,
>
> I would like to find a tool to add some trace inside some C files  
> from GCC.
> I tried with some regexp but without success so I would like to know  
> if
> clang
> would allow me to parse C files and add some frpintf() like this :

Sure, clang can do this short of thing.  It supports rewriting  
interfaces to insert strings into existing files.  Please take a look  
at the ObjC->C rewriter for some examples.

For example:

$  cat t.m
char * test() { return @encode(int); }
$ clang t.m -rewrite-objc -o -
...
char * test() { return "i"; }


-Chris