For context: position mapping is somewhere on our radar, but we haven't reached a stage at which it would make sense to start working on it yet.
If you have ideas and/or spare cycles, of course, they are welcome :)
As a side-note: I believe that we could build upon the (very early) proposed mechanism for comments to also store positions. Size-optimized BinAST files would drop both comments and positions, while debugging-optimized BinAST files would keep both at the end of the file so as to not slow down parsing until they are needed.
That seems awesome. I'm glad that it's on your radar.
If you can point me to the best place to suggest ideas or spend my spare cycles, I would gladly do so. At the very least, I can comment on how we serialize positions in the (tree-based) Scala.js IR, which is size-optimized.
Off-topic: I'm sorry to go a little squishy, but I thought I should say that I appreciate the work both of you do very much... though sjrd's work is a little bit more "direct-impact-for-me" at the moment, I must admit. :p
Of course, as you just both said, your work is kind of complementary... which is always nice. :)
Anyway, thanks for the long-term thinking to the both of you.
If you have ideas and/or spare cycles, of course, they are welcome :)
As a side-note: I believe that we could build upon the (very early) proposed mechanism for comments to also store positions. Size-optimized BinAST files would drop both comments and positions, while debugging-optimized BinAST files would keep both at the end of the file so as to not slow down parsing until they are needed.