Re: [racket-users] Why are there seemingly unnecessary if expressions shown by the Macro stepper?

2021-03-21 Thread schle...@gmail.com
Ahh ok, thank you that makes sense. I didn't know about PLT_LINKLET_SHOW_CP0 before that is a nice look behind the scene. sorawe...@gmail.com schrieb am Sonntag, 21. März 2021 um 19:47:03 UTC+1: > That’s not the job of the macro expander. And the Racket optimizer does > reduce (if '#t (#%app n

Re: [racket-users] Why are there seemingly unnecessary if expressions shown by the Macro stepper?

2021-03-21 Thread Sorawee Porncharoenwase
That’s not the job of the macro expander. And the Racket optimizer does reduce (if '#t (#%app not '#f) '#f) — in fact to #t. If you use Racket CS, try running: PLT_LINKLET_SHOW_CP0=1 racket file.rkt where file.rkt is #lang racket (displayln (if #t (not #f) #f)) Here’s the optimized program: ;

[racket-users] Why are there seemingly unnecessary if expressions shown by the Macro stepper?

2021-03-21 Thread schle...@gmail.com
The [WordCount] thread caused me to play around with the solutions to see whether I could see anything else that can be tweaked, I tried a few things but they didn't improve performance, but it was fun anyway. Then I though I could try the macro stepper and look at the expansion of [crowdsource