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@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@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users >
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