stlc-tests: fix accidental copy and paste
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Stephen Chang
parent
0a82e9298c
commit
cb3842281d
131
stlc-tests.rkt
131
stlc-tests.rkt
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@ -93,98 +93,6 @@
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(define (b [x : Int]) (a x))
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(define (ff [x : Int]) (ff x))
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;; define-type (non parametric)
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(define-type MaybeInt (variant (None) (Just Int)))
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(check-type (None) : MaybeInt)
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(check-type (Just 10) : MaybeInt)
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(check-type-error (Just "ten"))
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(check-type-error (Just (None)))
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(define (maybeint->bool [maybint : MaybeInt])
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(cases maybint
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[None () #f]
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[Just (x) #t]))
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(check-type-and-result (maybeint->bool (None)) : Bool => #f)
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(check-type-and-result (maybeint->bool (Just 25)) : Bool => #t)
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(check-type-error (maybeint->bool 25))
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(check-type-error (define (maybeint->wrong [maybint : MaybeIn; HO fn
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(check-type-and-result ((λ ([f : (→ Int Int)]) (f 10)) (λ ([x : Int]) (+ x 1))) : Int => 11)
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(check-type (λ ([f : (→ Int Int)]) (f 10)) : (→ (→ Int Int) Int))
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(check-type (λ ([f : (→ Int Int)]) (λ ([x : Int]) (f (f x)))) : (→ (→ Int Int) (→ Int Int)))
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(check-type-error (λ (f : (→ Int Int)) (λ (x : String) (f (f x)))))
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;; shadowed var
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(check-type-error ((λ ([x : Int]) ((λ ([x : String]) x) x)) 10))
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(check-type-and-result ((λ ([x : String]) ((λ ([x : Int]) (+ x 1)) 10)) "ten") : Int => 11)
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;; let
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(check-type-and-result (let ([x 1] [y 2]) (+ x y)) : Int => 3)
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(check-type-error (let ([x 1] [y "two"]) (+ x y)))
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(check-type-and-result (let ([x "one"]) (let ([x 2]) (+ x x))) : Int => 4)
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;; lists
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(check-type-and-result (first {Int} (cons {Int} 1 (null {Int}))) : Int => 1)
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(check-type-and-result (rest {Int} (cons {Int} 1 (null {Int}))) : (Listof Int) => (null {Int}))
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(check-type-error (cons {Int} 1 (null {String})))
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(check-type-error (cons {Int} "one" (null {Int})))
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(check-type-error (cons {String} 1 (null {Int})))
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(check-type-error (cons {String} 1 (null {Int})))
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(check-type-error (cons {String} "one" (cons {Int} "two" (null {String}))))
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(check-type-and-result (first {String} (cons {String} "one" (cons {String} "two" (null {String}))))
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: String => "one")
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(check-type-and-result (null? {String} (null {String})) : Bool => #t)
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(check-type-and-result (null? {String} (cons {String} "one" (null {String}))) : Bool => #f)
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(check-type-error (null? {String} (null {Int})))
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(check-type-error (null? {Int} (null {String})))
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(check-type-error (null? {Int} 1))
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(check-type-error (null? {Int} "one"))
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(check-type-error (null? {Int} (cons {String} "one" (null {String}))))
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; begin and void
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(check-type (void) : Unit)
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(check-type-and-result (begin (void) 1) : Int => 1)
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(check-type-and-result (begin (void) (void) 1) : Int => 1)
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(check-type-and-result (begin (void) (void) (void)) : Unit => (void))
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(check-type-and-result (begin (+ 1 2)) : Int => 3)
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(check-type-error (begin 1 2))
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(check-type (λ ([x : Int]) (void) (+ x 1)) : (→ Int Int))
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(check-type-error (λ ([x : Int]) 1 1))
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(check-type (λ ([x : Int] [y : Int]) (+ x y)) : (→ Int Int Int))
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(check-type-and-result ((λ ([a : Int] [b : Int] [c : Int]) (void) (void) (+ a b c)) 1 2 3)
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: Int => 6)
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; define
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(define (g [y : Int]) (+ (f y) 1))
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(define (f [x : Int]) (+ x 1))
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(check-type-and-result (f 10) : Int => 11)
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(check-type-and-result (g 100) : Int => 102)
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(check-not-type (f 10) : String)
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(check-not-type (g 100) : String)
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;; if
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(check-type-and-result (if (null? {Int} (null {Int})) 1 2) : Int => 1)
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(check-type-and-result (if (null? {Int} (cons {Int} 1 (null {Int}))) 1 2) : Int => 2)
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(check-type-error (if (null? {Int} (null {Int})) 1 "one"))
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(check-type-error (if (null? {Int} (null {Int})) "one" 1))
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(check-type-error (if 1 2 3))
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;;; recursive fn
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(define (add1 [x : Int]) (+ x 1))
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(define (map [f : (→ Int Int)] [lst : (Listof Int)])
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(if (null? {Int} lst)
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(null {Int})
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(cons {Int} (f (first {Int} lst)) (map f (rest {Int} lst)))))
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(check-type-and-result (map add1 (cons {Int} 1 (cons {Int} 2 (null {Int}))))
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: (Listof Int)
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=> (cons {Int} 2 (cons {Int} 3 (null {Int}))))
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(check-not-type (map add1 (cons {Int} 1 (cons {Int} 2 (null {Int}))))
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: (Listof String))
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;; recursive types
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(define (a [x : Int]) (b x))
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(define (b [x : Int]) (a x))
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(define (ff [x : Int]) (ff x))
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;; define-type (non parametric)
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(define-type MaybeInt (variant (None) (Just Int)))
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(check-type (None) : MaybeInt)
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@ -203,45 +111,6 @@
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[None () #f]
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[Just (x) x])))
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(define-type IntList (variant (Null) (Cons Int IntList)))
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(check-type-and-result (Null) : IntList => (Null))
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(check-type-and-result (Cons 1 (Null)) : IntList => (Cons 1 (Null)))
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(check-type-error (Cons "one" (Null)))
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(check-type-error (Cons 1 2))
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(define (map/IntList [f : (→ Int Int)] [lst : IntList])
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(cases lst
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[Null () (Null)]
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[Cons (x xs) (Cons (f x) (map/IntList f xs))]))
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(check-type-and-result (map/IntList add1 (Null)) : IntList => (Null))
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(check-type-and-result (map/IntList add1 (Cons 1 (Null))) : IntList => (Cons 2 (Null)))
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(check-type-and-result (map/IntList add1 (Cons 2 (Cons 1 (Null))))
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: IntList => (Cons 3 (Cons 2 (Null))))
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(check-type-error (map/IntList (λ ([n : Int]) #f) (Null)))
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(define-type BoolList (variant (BoolNull) (BoolCons Bool BoolList)))
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(define (map/BoolList [f : (→ Bool Int)] [lst : BoolList])
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(cases lst
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[BoolNull () (Null)]
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[BoolCons (x xs) (Cons (f x) (map/BoolList f xs))]))
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(check-type (map/BoolList (λ ([b : Bool]) (if b 0 1)) (BoolNull)) : IntList)
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(check-type-and-result
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(map/BoolList (λ ([b : Bool]) (if b 0 1)) (BoolCons #f (BoolNull)))
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: IntList => (Cons 1 (Null)))
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(check-not-type (map/BoolList (λ ([b : Bool]) (if b 0 1)) (BoolNull)) : BoolList)
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;; check typename is available
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(check-type (λ ([lst : IntList])
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(cases lst
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[Null () (None)]
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[Cons (x xs) (Just x)]))
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: (→ IntList MaybeInt))
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(check-type ((λ ([lst : IntList])
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(cases lst
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[Null () (None)]
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[Cons (x xs) (Just x)]))
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(Null)) : MaybeInt)t])
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(cases maybint
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[None () #f]
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[Just (x) x])))
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(define-type IntList (variant (Null) (Cons Int IntList)))
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(check-type-and-result (Null) : IntList => (Null))
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(check-type-and-result (Cons 1 (Null)) : IntList => (Cons 1 (Null)))
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