[cfe-users] uniquely identifying names

folkert via cfe-users cfe-users at lists.llvm.org
Tue Aug 30 02:33:45 PDT 2016


Maybe I could expand a name into its full name and use that.
e.g.:

namespace bla { class myclass { void mymethod() { } } }

then the full name of mymethod would be bla::myclass::mymethod would be
unique enough to me (including filename).
Can I somehow get this out of it?

On Fri, Aug 26, 2016 at 03:33:20PM +0000, David Blaikie wrote:
> There's no structural identity of code in Clang that I know of - I know
> someone's building a tool for doing structural similarity for things like
> plagiarism detection (I think there are some patches on the clang mailing
> list).
> 
> But if you only need identity within a single process, the pointer value of
> the pointer to any AST construct is a unique identity you can use.
> 
> (line/file/column isn't sufficiently unique - you could have a file that is
> included under different macro situations and each time it defines a
> different function, but all those functions would appear to be defined on
> the same line/file of that included file - or a macro that defines multiple
> functions - both can be resolved by looking at the more complete location
> information (including macro locations, etc))
> 
> On Fri, Aug 26, 2016 at 5:11 AM folkert via cfe-users <
> cfe-users at lists.llvm.org> wrote:
> 
> > Hi,
> >
> > The Sun java compiler allows you to (from java) walk the AST and
> > investigate it. Each token is stored in an object. Each object has a
> > hash() method which uniquely identifies it.
> >
> > Now I was wondering: can I do so with the LLVM tooling as well? I could
> > of course if I want to identify e.g. a function name just pick the line-
> > and column number and maybe include the function name itself as well but
> > that would constantly change when lines are added and/or removed.
> >
> > Any suggestions?
> >
> >
> > regards,
> >
> > Folkert van Heusden
> >
> > --
> > ---------------------------------------------------------------------
> > Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com
> > _______________________________________________
> > cfe-users mailing list
> > cfe-users at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
> >


Folkert van Heusden

-- 
Always wondered what the latency of your webserver is? Or how much more
latency you get when you go through a proxy server/tor? The numbers
tell the tale and with HTTPing you know them!
                                     http://www.vanheusden.com/httping/
-----------------------------------------------------------------------
Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com


More information about the cfe-users mailing list