hey all, a stack overflow question has me intruiged. is it possible to reference a defined variable inside of a provide block?

i’m looking to do (provide (filtered-out (λ (name) (findf (λ (n) (equal? name n)) my-funs)) (all-defined-out)))

but i get the error my-funs: unbound identifier

Does it help to place the definition of my-funs before the provide ?

lemme just put the whole snippet in here

This is useful because I’d be using my-funs elsewhere in the code and I don’t want to have to keep a list of provide calls up to date when I change my-funs

The my-funs variable needs to be available at compile time. So wrap a begin-for-syntax around it.

#lang racket (require racket/provide) (define (f1 a) (+ a 1)) (define (f2 a) (+ a 2)) (begin-for-syntax (define my-funs '(f1 f2))) (provide (filtered-out (λ (name) (and (member (string->symbol name) my-funs) name)) (all-defined-out)))

code used in filtered-out is run at expansion time, so if you do (define-for-syntax my-funs ...) it will work

or what @soegaard2 said

Oh - and findf is fine to use - I had just forgotten what it did.

Awesome thank you

Hi all. Is it possible to package up a DSL so that it can be invoked as a stand-alone utility, without having to explicitly install Racket?

Do you mean create a stand-alone executable that can be called as a command line tool? E.g. mylang -run “test1.mylang”?

Yeah

Yes, you can create an executable with raco exe and raco distribute.