[racket] struct and when the accessors are bound
If I have a program like this:
#lang racket/base
(define-values (prop:p p? p-ref)
(make-struct-type-property 'p))
(struct foo (a) #:transparent
#:property prop:p foo-a)
It gives me this error:
. foo-a: undefined;
cannot reference an identifier before its definition
Is there a reason why I can’t do this?
And is there any way to get around this other than wrapping foo-a in a lambda?
I know that this works:
#lang racket/base
(define-values (prop:p p? p-ref)
(make-struct-type-property 'p))
(struct foo (a) #:transparent
#:property prop:p (λ (x) (foo-a x)))
And I know that it’s not that bad, but is there any other way around it?