('if 'if)
('let 'let)
('lambda 'lambda)
+ ('case 'case)
('closure 'closure) ; only available in codegen
('static-string 'static-string) ; only available in codegen
('stack 'stack) ; only available in codegen (tag that value is passed via stack)
('app (map f x))
('lambda `(lambda ,(lambda-args x) ,(f (lambda-body x))))
('if `(if ,@(map f (cdr x))))
+ ('case `(case ,(f (case-expr x))
+ ,@(map (lambda (x)
+ (list (car x) (f (cadr x))))
+ (case-cases x))))
('stack `(stack ,(cadr x) ,(f (caddr x))))
(else x)))
(inner (lambda-body x)))]
['if (append (f x)
(flat-map inner (cdr x)))]
+ ['case (append (f x)
+ (inner (case-expr x))
+ (flat-map inner (map cadr (case-cases x))))]
['stack (append (f x)
(inner (caddr x)))]
[else (f x)]))
(define let-bindings cadr)
(define let-body cddr)
+(define case-expr cadr)
+(define case-cases cddr)
+
; (let ([(foo a b) (foo 123 345)]) a)
; |
; v