X-Git-Url: http://git.lukelau.me/?p=scheme.git;a=blobdiff_plain;f=typecheck.scm;h=46fddfec7008bbf6e05c637368571b6ed2f71563;hp=197798e104a7595f5637646cb102f2d9d99f44d5;hb=25a4c23da2d76f3bb951d01b1c3175be80441a0a;hpb=21a9f0aaa56d6dd767cefb30c606f4c62eecff48

diff --git a/typecheck.scm b/typecheck.scm
index 197798e..46fddfe 100644
--- a/typecheck.scm
+++ b/typecheck.scm
@@ -46,7 +46,6 @@
       (car xs)
       (last (cdr xs))))
 				
-					
 (define (normalize prog) ; (+ a b) -> ((+ a) b)
   (case (ast-type prog)
     ('lambda 
@@ -60,17 +59,12 @@
 	 `(,(normalize (car prog)) ,(normalize (cadr prog))) ; (f a)
 	 `(,(list (normalize (car prog)) (normalize (cadr prog)))
 	   ,(normalize (caddr prog))))) ; (f a b)
-    ;; (list (list (normalize (car prog))
-    ;; 	    (normalize (cadr prog))) (normalize (caddr prog))))) ; (f a b)
     ('let
 	(append (list 'let
 		      (map (lambda (x) `(,(car x) ,(normalize (cadr x))))
 			   (let-bindings prog)))
 		(map normalize (let-body prog))))
-    ('if `(if ,(normalize (cadr prog))
-	      ,(normalize (caddr prog))
-	      ,(normalize (cadddr prog))))
-    (else prog)))
+    (else (ast-traverse normalize prog))))
 
 (define (builtin-type x)
   (case x