Working on AST is hard unless it is a lisp. Additionally, the tooling to work with ASTs for many languages is poor. However I was pleasantly surprised when I

Working on AST is hard unless it is a lisp. Additionally, the tooling to work with ASTs for many languages is poor. However I was pleasantly surprised when I discovered clang query(c++). Eli has a nice introduction: http://eli.thegreenplace.net/2014/07/29/ast-matchers-and-clang-refactoring-tools http://eli.thegreenplace.net/2014/07/29/ast-matchers-and-cla... I wish someone would build more refactoring tools with proper semantic analysis