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Fixes bug in STLC example

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This commit is contained in:
Casey Klein 2011-04-15 09:48:04 -05:00
parent 3f94c3dcfc
commit 24d697e83c
1 changed files with 3 additions and 1 deletions
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4
collects/redex/examples/stlc.rkt
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@ -90,7 +90,8 @@
(where (-> t_2 ... t_3) (tc e_1 (x t) ...))
(where (t_2 ...) ((tc e_2 (x t) ...) ...))]
[(tc (λ ((x_1 t_1) ...) e) (x_2 t_2) ...)
(-> t_1 ... (tc e (x_1 t_1) ... (x_2 t_2) ...))]
(-> t_1 ... t)
(where t (tc e (x_1 t_1) ... (x_2 t_2) ...))]
[(tc e (x t) ...) #f])
;; remove the #; to run an example
@ -157,5 +158,6 @@
(test-equal (term (tc (+ (+ 1 2) 3))) (term num))
(test-equal (term (tc (if0 1 (λ ((x num)) x) 3))) (term #f))
(test-equal (term (tc (if0 1 2 3))) (term num))
(test-equal (term (tc (λ ((x num)) (x)))) (term #f))
(test-results)