no mutable

main
Matthew Butterick 6 years ago
parent c1ca6d6560
commit ad62683894

@ -4,7 +4,7 @@
"generic.rkt")
(provide (all-defined-out))
(struct x:ptr (type val parent) #:transparent #:mutable)
(struct x:ptr (type val parent) #:transparent)
(define x:version-key 'x:version)
(define x:start-offset-key 'x:start-offset)

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