There's an old project from Facebook that does something like this, called Pfff[0] It provides a tool called sgrep (syntactical grep) that lets you do some coo

There's an old project from Facebook that does something like this, called Pfff[0] It provides a tool called sgrep (syntactical grep) that lets you do some cool tricks, for instance: `sgrep "some_func(X,X)"` returns all calls to some_func with the same argument repeated. `sgrep "some_func(X,Y,...)"` returns all calls to some_func with 3 or more arguments. It's come in very handy for refactoring some troublesome codebases. [0]: https://github.com/facebookarchive/pfff https://github.com/facebookarchive/pfff