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53 lines
1.5 KiB
Scheme
53 lines
1.5 KiB
Scheme
;; A temporary test file
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(import (scheme base)
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(scheme write)
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(srfi 9)
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)
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;; TODO: seems begins are not spliced when part of an applied lambda??
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((lambda ()
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(define-record-type <pare>
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(kons x y)
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pare?
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(x kar set-kar!)
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(y kdr))
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(write
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(list
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(pare? (kons 1 2)) ; =. #t
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(pare? (cons 1 2)) ; =. #f
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; (kar (kons 1 2)) ; =. 1
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; (kdr (kons 1 2)) ; =. 2
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; (let ((k (kons 1 2)))
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; (set-kar! k 3)
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; (kar k)) ;=. 3
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))
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;(define <pare> (register-simple-type <pare> #f (quote (x y))))
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;(define pare? (make-type-predicate pare? <pare>))
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;(define kons
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; ((lambda (%make)
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; (lambda (x y)
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; ((lambda (res)
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; (slot-set! <pare> res (type-slot-offset <pare> (quote y)) y)
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; (slot-set! <pare> res (type-slot-offset <pare> (quote x)) x)
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; res)
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; (%make))))
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; (make-constructor "kons" <pare>)))
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;(write
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; (list
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; (kons 1 2)
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; (pare? (kons 1 2))
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; (pare? (cons 1 4))
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;))
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))
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;(((lambda ()
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;(define <pare> (register-simple-type <pare> #f (quote (x y))))
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;(define pare? (make-type-predicate pare? <pare>))
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;(define kons ((lambda (%make) (lambda (x y) ((lambda (res) (slot-set! <pare> res (type-slot-offset <pare> (quote y)) y) (slot-set! <pare> res (type-slot-offset <pare> (quote x)) x) res) (%make)))) (make-constructor "kons" <pare>))) (write (list (pare? (kons 1 2)) (pare? (cons 1 2)))))))
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;(define (make-lambda)
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; (lambda (a b c) (write (+ a b c))))
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;(define test (make-lambda))
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;(test 1 2 3)
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