y)))
'Int)
+ ; case statements
+(test-types
+ (typecheck '((data A (foo B))
+ (data B (bar Int))
+ (case (foo (bar 32))
+ [(foo x) x])))
+ 'B)
+
+(test-types
+ (typecheck '((case 42
+ [23 (= 1 2)]
+ [x (= x 1)])))
+ 'Bool)
; type annotations
(let ([(bar (foo x)) (bar (foo 42))])
x))
42)
+
+(test-prog '((data Foo [a] [b] [c])
+ (let ([x b])
+ (case x
+ [a 3]
+ [b 2]
+ [c 1])))
+ 2)
+