search for: genthat

Hello R experts, I plan to develop a tool for dynamic analysis of R programs. I would like to trace function calls at runtime, capturing argument and return values. Following a suggestion made some time ago on this list, my high-level implementation strategy is to rewrite the AST, augmenting call expressions with pre-call and post-call shims to capture the arguments and return value,

Hi Evan, You may find some parts of what we are doing with genthat useful. Genthat is a tool for creating unit tests by recording argument and return values of calls. This is done by instrumentation of the source code. The git repo with the code is here https://github.com/PRL-PRG/genthat We don?t really deal with NSE though. It could be something worth thinking...