suzanne.soy/racket
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Make Typed Racket name printing more deterministic.

Browse Source
This commit is contained in:
Sam Tobin-Hochstadt 2012-10-28 13:55:02 -04:00
parent cdf7cad8ac
commit 5861bf0b9f
1 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
collects/typed-racket/types/printer.rkt
View File

@ -36,10 +36,16 @@
;; does t have a type name associated with it currently?
;; has-name : Type -> Maybe[Symbol]
(define (has-name? t)
(and print-aliases
(for/first ([(n t*) (in-pairs (in-list (force (current-type-names))))]
#:when (and (Type? t*) (type-equal? t t*)))
n)))
(cond
[print-aliases
(define candidates
(for/list ([(n t*) (in-pairs (in-list (force (current-type-names))))]
#:when (and (Type? t*) (type-equal? t t*)))
n))
(if (null? candidates)
#f
(car (sort candidates string>? #:key symbol->string)))]
[else #f]))
(define (print-filter c port write?)
(define (fp . args) (apply fprintf port args))