How to extract Relay expressions following If statement

Questions
13

Hi @mbrookhart,

I have made some attempts as you suggested (doing reverse topological order and getting the part after IF as you suggested). Here is my understanding of your suggestions which I also agree with. Please let me know if I got them wrong. Here are the steps that I assumed that I should follow to extract the parts after IF:

  1. To reverse traversal by reverse top sort
  2. when I hit IF, I know that I traversed the parts that I need to extract.

I was not able to traverse the relay expressions in reverse order. Could you please elaborate on this?

I have tried to use ExprMutator and relay.analysis.post_order_visit to do reverse topological order sort.