Fix total pattern match verification

[scheme.git] / tests.scm

diff --git a/tests.scm b/tests.scm
index cdd60bd92730df41c4d15077ddee7ffc61bf7f17..7a9b3bffd34df74b48680816cf8e7ceb50b7adbc 100644 (file)
--- a/tests.scm
+++ b/tests.scm
@@ -70,10 +70,10 @@
                        (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)
@@ -93,6 +93,13 @@
              [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)])
@@ -106,12 +113,12 @@
 (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))
 
@@ -169,6 +176,19 @@
       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
 
@@ -204,8 +224,8 @@
 
                                        ; 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)
@@ -278,3 +298,50 @@
             (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])))))
+