expected actual))))
(define (test . xs) (apply test-f (cons equal? xs)))
-(define (test-types . xs) (apply test-f (cons types-equal? xs)))
+
+(define-syntax test-types
+ (syntax-rules ()
+ ((_ a e)
+ (begin
+ (display (quote a))
+ (newline)
+ (test-f types-equal? a e)))))
(define (read-file file)
(call-with-input-file file
(define (test-prog prog exit-code)
(display prog)
(newline)
- (compile-to-binary prog "/tmp/test-prog" 'darwin)
+ (compile-to-binary prog "/tmp/test-prog" host-os)
(test (system "/tmp/test-prog") exit-code))
+(define (test-expr prog exit-code)
+ (test-prog (list prog) exit-code))
+
(define (test-prog-stdout prog output)
(display prog)
(newline)
- (compile-to-binary prog "/tmp/test-prog" 'darwin)
+ (compile-to-binary prog "/tmp/test-prog" host-os)
(system "/tmp/test-prog > /tmp/test-output.txt")
(let ((str (read-file "/tmp/test-output.txt")))
(test str output)))
-(test-types (typecheck '(lambda (x) (+ ((lambda (y) (x y 3)) 5) 2)))
- '(abs (abs int (abs int int)) int))
+(test (data-tors '(A . ((foo Int Bool)
+ (bar Bool))))
+ '((foo . (constructor . (abs Int (abs Bool A))))
+ (foo~0 . (0 . (abs A Int)))
+ (foo~1 . (1 . (abs A Bool)))
+ (bar . (constructor . (abs Bool A)))
+ (bar~0 . (0 . (
+
+ abs A Bool)))))
+
+(test (data-tors-env
+ '(A . ((foo Int Bool)
+ (bar Bool))))
+ '((foo . (abs Int (abs Bool A)))
+ (foo~0 . (abs A Int))
+ (foo~1 . (abs A Bool))
+ (bar . (abs Bool A))
+ (bar~0 . (abs A Bool))))
+
+(test-types (typecheck '((lambda (x) (+ ((lambda (y) (x y 3)) 5) 2))))
+ '(abs (abs Int (abs Int Int)) Int))
; recursive types
-(test-types (substitute '((t1 (abs t1 t10))) 't1) '(abs t1 t10))
+(test-types (substitute '((t1 . (abs t1 t10))) 't1) '(abs t1 t10))
-(test-types (typecheck '(let ([bar (lambda (y) y)]
+(test-types (typecheck '((let ([bar (lambda (y) y)]
[foo (lambda (x) (foo (bar #t)))])
- foo))
- '(abs bool a))
+ foo)))
+ '(abs Bool a))
-(test-types (typecheck '(let ([bar (lambda (y) y)]
+(test-types (typecheck '((let ([bar (lambda (y) y)]
[foo (lambda (x) (foo (bar #t)))])
- bar))
+ bar)))
'(abs a a))
-(test-prog '(+ 1 2) 3)
-(test-prog '((lambda (x) ((lambda (y) (+ x y)) 42)) 100) 142)
+(test-types (typecheck '((let ([foo 3]
+ [bar (+ foo baz)]
+ [baz (- bar 1)])
+ bar)))
+ 'Int)
-(test-prog '(* 10 5) 50)
+(test-types (typecheck '((let ([foo 3]
+ [bar (baz foo)]
+ [baz (lambda (x) x)])
+ baz)))
+ '(abs a a))
-(test-prog '(let ((x (+ 1 32))
+(test-types (typecheck '((let ([foo 3]
+ [bar (baz foo)]
+ [baz (lambda (x) x)])
+ bar)))
+ 'Int)
+
+ ; mutual recursion
+(test-types (typecheck '((let ([f (lambda (n) (if (= n 0)
+ 0
+ (+ 1 (g (- n 1)))))]
+ [g (lambda (m) (f m))])
+ (f 10))))
+ 'Int)
+
+(test-types (typecheck '((let ([pow (lambda (p y)
+ (let ([go (lambda (n x)
+ (if (= n 0)
+ x
+ (go (- n 1) (* x y))))])
+ (go p 1)))])
+ (pow 4 2))))
+ 'Int)
+
+ ; ADTs
+
+
+(test-types
+ (typecheck
+ '((data A
+ [foo Int]
+ [bar Bool])
+ (let ([x (foo 42)]
+ [(foo y) x])
+ x)))
+ 'A)
+
+(test-types
+ (typecheck
+ '((data A
+ [foo Int]
+ [bar Bool])
+ (let ([x (foo 42)]
+ [(foo y) x])
+ y)))
+ 'Int)
+
+
+ ; pattern matching
+(test (let-bindings '(let ([(foo x) a]) x))
+ '((x (foo~0 a))))
+
+(test (let-bindings '(let ([x (foo 42)] [(foo y) x]) x))
+ '((x (foo 42))
+ (y (foo~0 x))))
+
+ ; type annotations
+
+(test (annotate-types
+ '((let ([x 42]
+ [y (+ 1 x)])
+ (- y x))))
+
+ '((let ()
+ ((let ((x (42 : Int))
+ (y (((+ : (abs Int (abs Int Int))) (1 : Int) (x : Int)) : Int)))
+ (((- : (abs Int (abs Int Int))) (y : Int) (x : Int)) : Int)) : Int)) : Int))
+
+(test-expr '(+ 1 2) 3)
+(test-expr '(bool->int (= 2 0)) 0)
+(test-expr '((lambda (x) ((lambda (y) (+ x y)) 42)) 100) 142)
+
+(test-expr '(* 10 5) 50)
+
+(test-expr '(let ((x (+ 1 32))
(y x))
((lambda (z) (+ 2 z)) (* y x)))
67) ; exit code modulos at 256
-(test-prog '(if ((lambda (x) (= x 2)) 1) 0 (- 32 1)) 31)
+(test-expr '(if ((lambda (x) (= x 2)) 1) 0 (- 32 1)) 31)
-(test-prog-stdout '(if (= 3 2) 1 (let () (print "hello world!") 0)) "hello world!")
+(test-prog-stdout '((if (= 3 2) 1 (let () (print "hello world!") 0))) "hello world!")
-(test-prog '((lambda (x y) (+ x y)) 1 2) 3)
-(test-prog '((lambda (x) (+ ((lambda (y) (+ y 1)) 3) x)) 2) 6)
+(test-expr '((lambda (x y) (+ x y)) 1 2) 3)
+(test-expr '((lambda (x) (+ ((lambda (y) (+ y 1)) 3) x)) 2) 6)
; passing closures about
-(test-prog '((lambda (z) ((lambda (x) (x 1)) (lambda (y) (+ z y)))) 2) 3)
+(test-expr '((lambda (z) ((lambda (x) (x 1)) (lambda (y) (+ z y)))) 2) 3)
; passing builtins about
-(test-prog '((lambda (x) ((lambda (a b) (a b 3)) + x)) 3) 6)
-(test-prog '(bool->int ((lambda (x) (x #f)) !)) 1)
-(test-prog '((lambda (f) (f #t)) bool->int) 1)
-(test-prog-stdout '(let () ((lambda (f) (f "foo")) print) 0) "foo")
-(test-prog '((lambda (f) (f 3 3)) (lambda (x y) (bool->int (= x y)))) 1)
-(test-prog '(bool->int ((lambda (f) (! (f 2 3))) =)) 1)
-
- ; recursion (hangs at typechecking)
-(test-prog '(let [(fac (lambda (f n x) (if (= n 0) x (f f (- n 1) (* x x)))))]
- (fac fac 3 2))
+(test-expr '((lambda (x) ((lambda (a b) (a b 3)) + x)) 3) 6)
+(test-expr '(bool->int ((lambda (x) (x #f)) !)) 1)
+(test-expr '((lambda (f) (f #t)) bool->int) 1)
+(test-prog-stdout '((let () ((lambda (f) (f "foo")) print) 0)) "foo")
+(test-expr '((lambda (f) (f 3 3)) (lambda (x y) (bool->int (= x y)))) 1)
+(test-expr '(bool->int ((lambda (f) (! (f 2 3))) =)) 1)
+
+ ; recursion
+(test-expr '(let [(inc (lambda (f n x)
+ (if (= n 0)
+ x
+ (f f (- n 1) (+ x 1)))))]
+ (inc inc 3 2))
+ 5)
+
+(test-expr '(let ([go (lambda (n m x)
+ (if (= n 0)
+ x
+ (go (- n 1) m (* x m))))]
+ [pow (lambda (p y) (go p y 1))])
+
+ (pow 3 2))
8)
+
+(test-expr '(let ([pow (lambda (p y)
+ (let ([go (lambda (n x)
+ (if (= n 0)
+ x
+ (go (- n 1) (* x y))))])
+ (go p 1)))])
+ (pow 4 2))
+ 16)
+
+ ; mutual recursion
+;; (test-prog-stdout '((let ([f (lambda (n)
+;; (if (= n 0)
+;; 0
+;; (let ()
+;; (print "a")
+;; (g (- n 1)))))]
+;; [g (lambda (m)
+;; (let ()
+;; (print "b")
+;; (f (- m 1))))])
+;; (f 10))) "ababababab")
+
+ ; adts and pattern matching
+
+(test-prog '((data (A [foo Int]))
+ (let ([(foo x) (foo 42)])
+ x))
+ 42)
projects / scheme.git / blobdiff