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Passes all tests

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Isaac Shoebottom 2025-04-08 16:03:00 -03:00
parent e5b13e035a
commit 5f36bf97e6
1 changed files with 9 additions and 4 deletions
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13
Assignments/03.rkt
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@ -390,10 +390,15 @@
(let* ([arg-type (parse-type te)]
[res-type (typecheck body (BindType name arg-type env))])
(arrowT arg-type res-type))]
[(listE elements) (begin
(define type-list (map (lambda (x) (typecheck x env)) elements))
(listT )]
[(listE elements) (local [(define type-list (map (lambda (x) (typecheck x env)) elements))
(define filtered (filter (lambda (x) (equal? (first type-list) x)) type-list))]
(if (equal? filtered type-list)
(listT (first type-list))
(type-case Type (first type-list)
[(varT v t) (if (none? (unbox t))
(listT (second type-list))
(error 'typecheck "no type"))]
[else (error 'typecheck "no type")])))]
))
;; ----------------------------------------