(format "test failed:\nexpected: ~a\nactual: ~a"
expected actual))))
-(define (test . xs) (apply test-f (cons equal? xs)))
+(define-syntax test
+ (syntax-rules ()
+ ((_ a e)
+ (begin
+ (display (quote a))
+ (newline)
+ (test-f equal? a e)))))
(define-syntax test-types
(syntax-rules ()
(display prog)
(newline)
(compile-to-binary prog "/tmp/test-prog" host-os)
- (test (system "/tmp/test-prog") exit-code))
+ (test-f equal? (system "/tmp/test-prog") exit-code))
(define (test-expr prog exit-code)
(test-prog (list prog) exit-code))
(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-f equal? str output)))
+
+(define-syntax test-exception
+ (syntax-rules ()
+ ((_ f)
+ (begin
+ (display (quote f))
+ (newline)
+ (call/cc (lambda (k)
+ (with-exception-handler
+ (lambda (x)
+ (when (eqv? 'no-exception x)
+ (error #f "test failed: no exception thrown"))
+ (k))
+ (lambda ()
+ (begin
+ f
+ (raise 'no-exception))))))))))
(test (data-tors '(A . ((foo Int Bool)
(bar Bool))))
'((foo (A foo constructor)
abs Int (abs Bool A))
- (foo~0 (A foo 0) abs A Int)
- (foo~1 (A foo 1) abs A Bool)
+ (foo~0 (A foo 0 Int) abs A Int)
+ (foo~1 (A foo 1 Bool) abs A Bool)
(bar (A bar constructor) abs Bool A)
- (bar~0 (A bar 0) abs A Bool)))
+ (bar~0 (A bar 0 Bool) abs A Bool)))
(test (data-tors-type-env
'(A . ((foo Int Bool)
(bar . (abs Bool A))
(bar~0 . (abs A Bool))))
+(test (expand-pattern-matches
+ '((data A (foo Int Int))
+ (let ([(foo x y) (foo 123 234)] [z (f 123)]) x)))
+ '((data A (foo Int Int))
+ (let ([x (foo~0 (foo 123 234))]
+ [y (foo~1 (foo 123 234))]
+ [z (f 123)])
+ x)))
+
+(test (singletons '((A [foo] [bar Int]) (B [baz Int] [qux])))
+ '(foo qux))
+
+(test (map (lambda (x) (data-sum-tag '((A [foo] [bar Int]) (B [baz Int] [qux])) x))
+ '(foo bar baz qux))
+ '(0 1 0 1))
+
+(test-exception
+ (expand-pattern-matches '((data A (foo Int Int))
+ (let ([(foo x) (foo 123 234)])
+ x))))
+
(test-types (typecheck '((lambda (x) (+ ((lambda (y) (x y 3)) 5) 2))))
'(abs (abs Int (abs Int Int)) Int))
(test-types (substitute '((t1 . (abs t1 t10))) 't1) '(abs t1 t10))
(test-types (typecheck '((let ([bar (lambda (y) y)]
- [foo (lambda (x) (foo (bar #t)))])
+ [foo (lambda (x) (foo (bar true)))])
foo)))
'(abs Bool a))
(test-types (typecheck '((let ([bar (lambda (y) y)]
- [foo (lambda (x) (foo (bar #t)))])
+ [foo (lambda (x) (foo (bar true)))])
bar)))
'(abs a a))
(test-types
(typecheck
- '((data A
- [foo Int]
- [bar Bool])
+ '((data A [foo Int])
(let ([x (foo 42)]
[(foo y) x])
x)))
(test-types
(typecheck
- '((data A
- [foo Int]
- [bar Bool])
+ '((data A [foo Int])
(let ([x (foo 42)]
[(foo y) x])
y)))
'Int)
+ ; case statements
+(test-types
+ (typecheck '((data A (foo B))
+ (data B (bar Int))
+ (case (foo (bar 32))
+ [(foo x) x])))
+ 'B)
- ; 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))))
+(test-types
+ (typecheck '((case 42
+ [23 (= 1 2)]
+ [x (= x 1)])))
+ 'Bool)
; type annotations
; passing builtins about
(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-expr '(bool->int ((lambda (x) (x false)) !)) 1)
+(test-expr '((lambda (f) (f true)) 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)
(let ([(foo x y) (foo (= 3 3) 42)])
y))
42)
+
+(test-exception (expand-pattern-matches
+ '((data A [foo Int]
+ [bar Bool])
+ (let ([(foo x) (foo 0)]) x))))
+
+(test-prog '((data A [foo Int])
+ (let ([x (foo 42)])
+ (let ([(foo y) x])
+ (+ 2 y))))
+ 44)
+
+(test-prog '((data A [foo Bool Int Int])
+ (let ([x (foo (= 2 1) 123 45)]
+ [(foo a b c) x])
+ (+ b c)))
+ (+ 123 45))
+
+(test-prog '((data A [foo Int])
+ (data B [bar A])
+ (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)
+
+(test-prog '((data Foo [foo Int Int] [bar Bool])
+ (case (foo 42 12)
+ [(foo 20 x) 0]
+ [(foo 42 x) x]
+ [(foo y x) 0]
+ [(bar x) 0]))
+ 12)
+
+(test-prog '((data Foo [foo Int])
+ (data Bar [bar Foo])
+ (case (bar (foo 42))
+ [(bar (foo x)) x]))
+ 42)
+
+
+ ; mix of singleton and non singleton constructors
+(test-prog '((data A [foo Int] [bar])
+ (case (foo 42)
+ [(foo x) x]
+ [bar 0]))
+ 42)
+
+(test-prog '((data A [foo Int] [bar])
+ (case bar
+ [(foo x) 0]
+ [bar 12]))
+ 12)
+ ; todo: make this error for incomplete pattern match
+(test-exception
+ (codegen '((data A [foo Int] [bar Int B])
+ (data B [baz Int])
+ (let ([val (bar 42 (baz 12))])
+ (case val
+ [(foo 42) 0]
+ [(bar 32 (baz 12)) 1]
+ [(bar 42 (baz x)) x]
+ [(foo x) 2])))))
+