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Justin Ethier 2018-01-27 19:09:18 -05:00
parent 9d5a4eaf5c
commit 8527261475
1 changed files with 16 additions and 3 deletions
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19
match-test2.scm
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@ -27,7 +27,7 @@
;; Go directly to MATCH-TWO.
((match-one . x)
(match-two . x))))
#;(define-syntax match-two
(define-syntax match-two
(syntax-rules (_ ___ ..1 *** quote quasiquote ? $ struct @ object = and or not set! get!)
((match-two v () g+s (sk ...) fk i)
(if (null? v) (sk ... i) fk))
@ -115,7 +115,7 @@
(if (equal? v x) (sk ... (id ...)) fk)))
(if (equal? v x) (sk ... (id ...)) fk)))
))
(define-syntax match-two
#;(define-syntax match-two
(syntax-rules (_ ___ ..1 *** quote quasiquote ? $ struct @ object = my-and or not set! get!)
((match-two v () g+s (sk ...) fk i)
(if (null? v) (sk ... i) fk))
@ -211,5 +211,18 @@
(display
;; Works fine with my-and, but change back to and (and above in match-two) and it is broken
(match-two 1 (my-and x) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ())
;(match-two 1 (my-and x) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ())
;; With my-and the initial expansions are:
;/* (expand (match-two 1 (my-and x) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ()))*/
;/* (expand (match-one$2095 1 x (1 (set! 1)) (match-one$2095 1 (my-and$2094) (1 (set! 1)) (match-drop-ids (begin x)) (begin)) (begin) ()))*/
;/* (expand (match-two$2096 1 x (1 (set! 1)) (match-one$2095 1 (my-and$2094) (1 (set! 1)) (match-drop-ids (begin x)) (begin)) (begin) ()))*/
;/* (expand (match-check-identifier$2105 x (let-syntax ((new-sym?$2100 (syntax-rules$2104 () ((new-sym?$2100 x sk2$2102 fk2$2101) sk2$2102) ((new-sym?$2100 y$2103 sk2$2102 fk2$2101) fk2$2101)))) (new-sym?$2100 random-sym-to-match$2099 (let$2098 ((x 1)) (match-one$2095 1 (my-and$2094) (1 (set! 1)) (match-drop-ids (begin x)) (begin) (x))) (if (equal? 1 x) (match-one$2095 1 (my-and$2094) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ()) (begin)))) (if (equal? 1 x) (match-one$2095 1 (my-and$2094) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ()) (begin))))*/
;; Alternatively, with and the initial expansions are:
(match-two 1 (and x) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ())
;/* (expand (match-two 1 (and x) (1 (set! 1)) (match-drop-ids (begin x)) (begin) ()))*/
;/* (expand (if (pair? 1) (let$2108 ((w$2107 (car 1)) (x$2105 (cdr 1))) (match-one$2106 w$2107 and ((car 1) (set-car! 1)) (match-one$2106 x$2105 (x) ((cdr 1) (set-cdr! 1)) (match-drop-ids (begin x)) (begin)) (begin) ())) (begin)))*/
;/* (expand (pair? 1))*/
;/* (expand 1)*/
;/* (expand pair?)*/
)