Modified the RecursiveASTVisitor tutorial ( http://clang.llvm.org/docs/RAVFrontendAction.html ) for fun so it now decomposes functions (for every function it encounters: prints function name, return type, and each arguments type/name). It also prints out basic information when it encounters a variable. It has hard-coded paths to compile on Debian Wheezy.

Even though the target is Debian Wheezy, you need the Jessie (3.4 at time of writing) build of LLVM/Clang, so put the following line in your /etc/apt/sources.list

deb http://http.debian.net/debian/ jessie main

Then:

# apt-get update
# apt-get install -t jessie libclang-3.4-dev llvm-3.4-dev

Clone this repo and cd into it as normal user, then:

qmake:

$ qmake
$ make

or cmake:

$ mkdir build
$ cd build
$ cmake ../
$ make

Test it out:

./function-decomposer "int someFunc(int x, char **y); bool b; int x = 0; int y(x); inz /*typo*/ hi = y;"