in stepper/private/reconstruct.rkt
- in recon-value, add cases to handle list and cons - in recon-inner, in app called case, add case to handle lazy list fns that contain unannotated !'s (ie cadr, cdddr, second, third, etc) in stepper/private/model.rkt - add highlight-stack - in send-step, add various skip conditions when lhs = ellipses add file stepper/private/lazy-highlighting.rkt in tests/stepper/through-tests.rkt tests/stepper/automatic-tests.rkt - add tests for list and cons fns
This commit is contained in:
Stephen Chang
parent
c41123ce6c
commit
49fd1fb0e0
45
collects/stepper/private/lazy-highlighting.rkt
Normal file
45
collects/stepper/private/lazy-highlighting.rkt
Normal file
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@ -0,0 +1,45 @@
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#lang scheme/base
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(provide (rename-out [table highlight-table]))
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; number of steps to skip, where the step to skip has ellipses on lhs
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; # of skips depends on # of hidden !'s in fn def in lazy/lazy.rkt
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(define
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table
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(make-immutable-hasheq
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'((caar . 1)
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(cadr . 0)
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(cdar . 1)
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(cddr . 0)
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(caaar . 2)
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(caadr . 1)
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(cadar . 1)
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(caddr . 0)
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(cdaar . 2)
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(cdadr . 1)
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(cddar . 1)
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(cdddr . 0)
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(caaaar . 3)
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(caaadr . 2)
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(caadar . 2)
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(caaddr . 1)
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(cadaar . 2)
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(cadadr . 1)
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(caddar . 1)
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(cadddr . 0)
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(cdaaar . 3)
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(cdaadr . 2)
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(cdadar . 2)
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(cdaddr . 1)
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(cddaar . 2)
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(cddadr . 1)
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(cdddar . 1)
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(cddddr . 0)
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(second . 0)
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(third . 0)
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(fourth . 0)
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(fifth . 0)
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(sixth . 0)
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(seventh . 0)
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(eighth . 0)
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)))
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@ -101,10 +101,10 @@
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(constructor-style-printing) ; constructor-style-printing?
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(abbreviate-cons-as-list) ; abbreviate-cons-as-list?
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(make-fake-render-to-sexp #t #t #t) ; render-to-sexp
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#f ; lifting?
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#t ; lifting?
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#t ; show-and/or-clauses-consumed?
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#f ; all-bindings-mutable?
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#f)) ; show-lambdas-as-lambdas?
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#t)) ; show-lambdas-as-lambdas?
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(define-struct test-struct () (make-inspector))
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@ -53,7 +53,9 @@
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#;(file "/Users/clements/clements/scheme-scraps/eli-debug.ss")
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;; for breakpoint display
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;; (commented out to allow nightly testing)
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#;"display-break-stuff.ss")
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#;"display-break-stuff.ss"
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(for-syntax scheme/base)
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"lazy-highlighting.rkt")
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(define program-expander-contract
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((-> void?) ; init
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@ -84,7 +86,7 @@
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#:disable-error-handling? [disable-error-handling? #f]
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#:raw-step-receiver [raw-step-receiver #f])
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(define DEBUG #f)
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(define DEBUG #t)
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;; finished-exps:
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;; (listof (list/c syntax-object? (or/c number? false?)( -> any)))
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@ -108,11 +110,45 @@
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(define (reset-held-exp-list)
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(set! held-exp-list the-no-sexp)
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(set! held-finished-list null))
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(set! held-finished-list null)
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(set! lhs-recon-thunk null))
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; used when determining whether to skip step with ellipses on LHS
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(define last-rhs-exps null)
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; thunk that can re-reconstruct the last lhs
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(define lhs-recon-thunk null)
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; used to resolve lhs ellipses, to make sure highlighting is correct
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; steps are pushed onto the stack:
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; when step=? but not step-and-highlight=?
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; steps are popped off the stack:
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; lhs = ellipses and rhs != last-rhs-exps and skips = 0
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; skips are defined for each fn in lazy-highlighting.rkt;
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; # of skips depends on # of hidden !'s in fn def
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(define highlight-stack null)
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(define (highlight-stack-push mark-list)
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(let* ([mark (find-first-called mark-list)]
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[fn (object-name (lookup-binding (list mark) (get-arg-var 0)))]
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[skips (hash-ref highlight-table fn)])
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(printf "skips for ~a = ~a\n" fn skips)
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(set! highlight-stack
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(cons (cons lhs-recon-thunk skips) highlight-stack))))
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(define (find-first-called mark-list)
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(if (null? mark-list)
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#f
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(let ([top-mark (car mark-list)])
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(if (eq? 'called (mark-label top-mark))
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top-mark
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(find-first-called (cdr mark-list))))))
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(define (highlight-stack-pop)
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(set! highlight-stack (cdr highlight-stack)))
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(define (highlight-stack-decrement)
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(set! highlight-stack
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(cons (cons (caar highlight-stack)
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(sub1 (cdar highlight-stack)))
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(cdr highlight-stack))))
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;; highlight-mutated-expressions :
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;; ((listof (list/c syntax? syntax?)) (listof (list/c syntax? syntax?))
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@ -225,10 +261,16 @@
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(define (create-held exps)
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(make-held exps (compute-step-was-app?) (compute-posn-info)))
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(define-syntax (with-DEBUG stx)
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(syntax-case stx ()
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[(_ exp msg) #'(and exp (when DEBUG (printf msg)))]))
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; sends a step to the stepper, except if
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; - lhs = rhs
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; - lhs = ellipses, last-rhs-exps = null (ie, this is first step)
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; - lhs = ellipses, highlight-stack = null (ie, this is first step)
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; - lhs = ellipses, rhs = last-rhs-exps
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; when lhs = ellipses, and highlight-stack != null,
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; pop step from stack and use lhs
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(define (send-step lhs-exps lhs-finished-exps
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rhs-exps rhs-finished-exps
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step-kind lhs-posn-info rhs-posn-info)
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@ -236,13 +278,35 @@
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(printf "maybe sending step ... \n")
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(printf "LHS = ~a\n" (map syntax->hilite-datum lhs-exps))
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(printf "RHS = ~a\n" (map syntax->hilite-datum rhs-exps)))
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(unless (or (and (step=? lhs-exps rhs-exps)
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(when DEBUG (printf "LHS = RHS, so skipping\n")))
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(and (step=? lhs-exps (list #'(... ...)))
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(or (step=? rhs-exps last-rhs-exps)
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(null? last-rhs-exps))
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(when DEBUG
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(printf "LHS = ..., RHS = last RHS, so skipping\n"))))
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(unless
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(or (with-DEBUG
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(and (step=? lhs-exps rhs-exps)
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(when (not (step-and-highlight=? lhs-exps rhs-exps))
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(when DEBUG
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(printf "Pushing onto highlight-stack:\n ~a thunk\n"
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(syntax->hilite-datum (car lhs-exps))))
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(highlight-stack-push mark-list)))
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"SKIPPING STEP (LHS = RHS)\n")
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(and (step=? lhs-exps (list #'(... ...)))
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(or (with-DEBUG
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(step=? rhs-exps last-rhs-exps)
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"SKIPPING STEP (LHS = ellipses and RHS = last RHS)\n")
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(with-DEBUG
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(null? highlight-stack)
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"SKIPPING STEP (LHS = ellipses and highlight-stack = null)\n")
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(let ([skips (cdar highlight-stack)]
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[lhs-thunk (caar highlight-stack)])
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(if (zero? skips)
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(begin
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(set! lhs-exps (lhs-thunk))
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(set! lhs-finished-exps rhs-finished-exps)
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(with-DEBUG
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(highlight-stack-pop)
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"Popping highlight-stack\n")
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#f)
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(with-DEBUG
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(highlight-stack-decrement)
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"SKIPPING SKIP (decrementing top of highlight-stack)\n"))))))
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(receive-result
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(make-before-after-result
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(append lhs-finished-exps lhs-exps)
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@ -257,6 +321,9 @@
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(define (step=? lhs rhs)
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(equal? (map syntax->datum lhs)
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(map syntax->datum rhs)))
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(define (step-and-highlight=? lhs rhs)
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(equal? (map syntax->hilite-datum lhs)
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(map syntax->hilite-datum rhs)))
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#;(>>> break-kind)
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#;(fprintf (current-error-port) "break called with break-kind: ~a ..." break-kind)
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@ -296,7 +363,16 @@
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lhs-unwound))]
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[lhs-finished-exps (reconstruct-all-completed)])
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(set! held-finished-list lhs-finished-exps)
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(set! held-exp-list (create-held lhs-unwound))))]
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(set! held-exp-list (create-held lhs-unwound))
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(set! lhs-recon-thunk
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(λ ()
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(map (λ (exp) (unwind exp render-settings))
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(maybe-lift
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(r:reconstruct-left-side
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mark-list
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returned-value-list
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render-settings)
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#f))))))]
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; CASE: result-exp-break or result-value-break ----------------
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[(result-exp-break result-value-break)
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@ -135,12 +135,30 @@
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; must be from library code, or it's a running promise
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[(promise? val)
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(let ([partial-eval-promise
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(hash-ref partially-evaluated-promises-table
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val (λ () #f))])
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(or (hash-ref partially-evaluated-promises-table
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val (λ () #f))
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; can be an extra promise layer when dealing with lists
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(hash-ref partially-evaluated-promises-table
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(pref val) (λ () #f)))])
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(or partial-eval-promise
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(if (promise-forced? val)
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(recon-value (force val) render-settings assigned-name)
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'promise)))]
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; STC: handle lists here, instead of deferring to render-to-sexp fn
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; because there may be nested promises
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[(null? val) #'empty]
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[(list? val)
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(with-syntax
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([(reconed-vals ...)
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(map (lx (recon-value _ render-settings assigned-name)) val)])
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#'(#%plain-app list reconed-vals ...))]
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[(pair? val)
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(with-syntax
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([reconed-car
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(recon-value (car val) render-settings assigned-name)]
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[reconed-cdr
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(recon-value (cdr val) render-settings assigned-name)])
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#'(#%plain-app cons reconed-car reconed-cdr))]
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[else
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(let* ([rendered
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((render-settings-render-to-sexp render-settings) val)])
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@ -843,9 +861,17 @@
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(datum->syntax #'here `(,#'#%plain-app ...)) ; in unannotated code ... can this occur?
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; dont show ellipses for force
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; object-name is good enough here, so dont need to add another "special val"
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(if (eq? (object-name (car arg-vals)) 'force)
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so-far
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(datum->syntax #'here `(,#'#%plain-app ... ,so-far ...))))
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(let ([obj-name (object-name (car arg-vals))])
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(cond [(eq? obj-name 'force) so-far]
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[(ormap
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(lx (eq? obj-name _))
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'(caar cadr cdar cddr caaar caadr cadar caddr cdaar cdadr cddar cdddr
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caaaar caaadr caadar caaddr cadaar cadadr caddar cadddr cdaaar cdaadr
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cdadar cdaddr cddaar cddadr cdddar cddddr
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second third fourth fifth sixth seventh eighth))
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#`(#%plain-app #,(datum->syntax #'here obj-name) #,so-far)]
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[else
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(datum->syntax #'here `(,#'#%plain-app ... ,so-far ...))])))
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'stepper-args-of-call
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rectified-evaluated))
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(else
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@ -3,7 +3,16 @@
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(require "through-tests.ss"
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"test-engine.ss")
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(define lazy-tests '(lazy1 lazy2 lazy3))
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(define steve-broke '(mz1 map))
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(define lazy-tests
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'(lazy1 lazy2 lazy3 lazy-multi lazy-app1 lazy-app2 lazy-app3
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lazy-cons1 lazy-cons2 lazy-list1 lazy-list2 lazy-list3 lazy-list4 lazy-list5
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lazy-caar lazy-cadr lazy-cdar lazy-cddr lazy-caaar lazy-caadr lazy-cadar
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lazy-caddr lazy-cdaar lazy-cdadr lazy-cddar lazy-cdddr lazy-caaaar
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lazy-caaadr lazy-caadar lazy-caaddr lazy-cadaar lazy-cadadr lazy-caddar
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lazy-cadddr lazy-cdaaar lazy-cdaadr lazy-cdadar lazy-cdaddr lazy-cddaar
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lazy-cddadr lazy-cdddar lazy-cddddr lazy-second lazy-third lazy-fourth
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lazy-fifth lazy-sixth lazy-seventh lazy-eighth))
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(let ((outer-namespace (current-namespace)))
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(parameterize ([display-only-errors #t]
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@ -14,9 +23,10 @@
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;; make sure the tests' print-convert sees the teaching languages' properties
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#;(namespace-attach-module outer-namespace 'mzlib/pconvert-prop (current-namespace))
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(namespace-require 'test-engine/racket-tests)
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(if (and (run-all-tests-except
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(if (and #;(run-all-tests-except
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(append '(bad-and bad-cons check-error begin-let-bug prims qq-splice time
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set! local-set! local-struct/i local-struct/ilam)
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steve-broke
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lazy-tests))
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(run-tests lazy-tests))
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(exit 0)
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@ -1445,7 +1445,11 @@
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-> {7})
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;; LAZY.SS:
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;; --------------------------------------------------------------------------
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;; Lazy Stepper tests
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;; --------------------------------------------------------------------------
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(define err '(/ 1 0))
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(t 'lazy1 m:lazy
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(! (+ 3 4))
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@ -1459,14 +1463,253 @@
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-> {12})
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(t 'lazy3 m:lazy
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((lambda (x y) (* x x)) (+ 1 2) (+ 3 4))
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:: {((lambda (x y) (* x x)) (+ 1 2) (+ 3 4))}
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((lambda (x y) (* x x)) (+ 1 2) (/ 1 0))
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:: {((lambda (x y) (* x x)) (+ 1 2) (/ 1 0))}
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-> {(* (+ 1 2) (+ 1 2))}
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:: (* {(+ 1 2)} {(+ 1 2)})
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-> (* {3} {3})
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:: {(* 3 3)}
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-> {9})
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(t 'lazy-multi m:lazy
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(+ 1 2) (+ 3 4)
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:: {(+ 1 2)} -> {3}
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:: 3 {(+ 3 4)} -> 3 {7})
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; lazy-app1:
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; (define (f x) (+ x x))
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; (f (+ 1 2))
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(let* ([body '(+ x x)]
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[lam `(lambda (x) ,body)]
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[def `(define (f x) ,body)]
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[arg '(+ 1 2)])
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(t 'lazy-app1 m:lazy
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,def (f ,arg)
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:: ,def ({f} ,arg) -> ,def ({,lam} ,arg)
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:: ,def {(,lam ,arg)} -> ,def {(+ ,arg ,arg)}
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:: ,def (+ {,arg} {,arg}) -> ,def (+ {3} {3})
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:: ,def {(+ 3 3)} -> ,def {6}))
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; lazy-app2:
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; (define (f x) (+ x x))
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; (f (f (+ 1 2)))
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(let* ([body '(+ x x)]
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[lam `(lambda (x) ,body)]
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[def `(define (f x) ,body)]
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[arg1 '(+ 1 2)]
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[arg2 `(f ,arg1)])
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(t 'lazy-app2 m:lazy
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,def (f ,arg2)
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:: ,def ({f} ,arg2) -> ,def ({,lam} ,arg2)
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:: ,def {(,lam ,arg2)} -> ,def {(+ ,arg2 ,arg2)}
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:: ,def (+ ({f} ,arg1) ({f} ,arg1)) -> ,def (+ ({,lam} ,arg1) ({,lam} ,arg1))
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:: ,def (+ {(,lam ,arg1)} {(,lam ,arg1)})
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-> ,def (+ {(+ ,arg1 ,arg1)} {(+ ,arg1 ,arg1)})
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:: ,def (+ (+ {,arg1} {,arg1}) (+ {,arg1} {,arg1}))
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-> ,def (+ (+ {3} {3}) (+ {3} {3}))
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:: ,def (+ {(+ 3 3)} {(+ 3 3)}) -> ,def (+ {6} {6})
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:: ,def {(+ 6 6)} -> ,def {12}))
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; lazy-app3
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; (define (f x) (+ (+ x x) x))
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; (define (g x) (+ x (+ x x)))
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; (f (+ 1 2))
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; (g (+ 3 4))
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(let* ([body '(+ x x)]
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[body1 `(+ ,body x)]
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[body2 `(+ x ,body)]
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[def1 `(define (f x) ,body1)]
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[def2 `(define (g x) ,body2)]
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[lam1 `(lambda (x) ,body1)]
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[lam2 `(lambda (x) ,body2)]
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[arg1 '(+ 1 2)]
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[arg2 '(+ 3 4)])
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(t 'lazy-app3 m:lazy
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,def1 ,def2 (f ,arg1) (g ,arg2)
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:: ,def1 ,def2 ({f} ,arg1) -> ,def1 ,def2 ({,lam1} ,arg1)
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:: ,def1 ,def2 {(,lam1 ,arg1)} -> ,def1 ,def2 {(+ (+ ,arg1 ,arg1) ,arg1)}
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:: ,def1 ,def2 (+ (+ {,arg1} {,arg1}) {,arg1}) -> ,def1 ,def2 (+ (+ {3} {3}) {3})
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:: ,def1 ,def2 (+ {(+ 3 3)} 3) -> ,def1 ,def2 (+ {6} 3)
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:: ,def1 ,def2 {(+ 6 3)} -> ,def1 ,def2 {9}
|
||||
:: ,def1 ,def2 9 ({g} ,arg2) -> ,def1 ,def2 9 ({,lam2} ,arg2)
|
||||
:: ,def1 ,def2 9 {(,lam2 ,arg2)} -> ,def1 ,def2 9 {(+ ,arg2 (+ ,arg2 ,arg2))}
|
||||
:: ,def1 ,def2 9 (+ {,arg2} (+ {,arg2} {,arg2})) -> ,def1 ,def2 9 (+ {7} (+ {7} {7}))
|
||||
:: ,def1 ,def2 9 (+ 7 {(+ 7 7)}) -> ,def1 ,def2 9 (+ 7 {14})
|
||||
:: ,def1 ,def2 9 {(+ 7 14)} -> ,def1 ,def2 9 {21}))
|
||||
|
||||
(t 'lazy-cons1 m:lazy
|
||||
(car (cons (+ 1 2) ,err))
|
||||
:: {(car (cons (+ 1 2) ,err))} -> {(+ 1 2)} -> {3})
|
||||
|
||||
(t 'lazy-cons2 m:lazy
|
||||
(cdr (cons ,err (+ 1 2)))
|
||||
:: {(cdr (cons ,err (+ 1 2)))} -> {(+ 1 2)} -> {3})
|
||||
|
||||
(t 'lazy-list1 m:lazy
|
||||
(car (list (+ 1 2) ,err))
|
||||
:: {(car (list (+ 1 2) ,err))} -> {(+ 1 2)} -> {3})
|
||||
|
||||
(t 'lazy-list2 m:lazy
|
||||
(cdr (list ,err (+ 1 2)))
|
||||
:: {(cdr (list ,err (+ 1 2)))} -> {(list (+ 1 2))})
|
||||
|
||||
(t 'lazy-list3 m:lazy
|
||||
(cadr (second (third (list ,err ,err (list ,err (list ,err (+ 1 2)))))))
|
||||
:: (cadr (second {(third (list ,err ,err (list ,err (list ,err (+ 1 2)))))}))
|
||||
-> (cadr (second {(list ,err (list ,err (+ 1 2)))}))
|
||||
:: (cadr {(second (list ,err (list ,err (+ 1 2))))})
|
||||
-> (cadr {(list ,err (+ 1 2))})
|
||||
:: {(cadr (list ,err (+ 1 2)))}
|
||||
-> {(+ 1 2)} -> {3})
|
||||
|
||||
(t 'lazy-caar m:lazy
|
||||
(caar (list (list 1)))
|
||||
:: {(caar (list (list 1)))} -> {1})
|
||||
(t 'lazy-cadr m:lazy
|
||||
(cadr (list 1 2))
|
||||
:: {(cadr (list 1 2))} -> {2})
|
||||
(t 'lazy-cdar m:lazy
|
||||
(cdar (list (list 1)))
|
||||
:: {(cdar (list (list 1)))} -> {empty})
|
||||
(t 'lazy-cddr m:lazy
|
||||
(cddr (list 1 2))
|
||||
:: {(cddr (list 1 2))} -> {empty})
|
||||
(t 'lazy-caaar m:lazy
|
||||
(caaar (list (list (list 1))))
|
||||
:: {(caaar (list (list (list 1))))} -> {1})
|
||||
(t 'lazy-caadr m:lazy
|
||||
(caadr (list 1 (list 1)))
|
||||
:: {(caadr (list 1 (list 1)))} -> {1})
|
||||
(t 'lazy-cadar m:lazy
|
||||
(cadar (list (list 1 2)))
|
||||
:: {(cadar (list (list 1 2)))} -> {2})
|
||||
(t 'lazy-caddr m:lazy
|
||||
(caddr (list 1 2 3))
|
||||
:: {(caddr (list 1 2 3))} -> {3})
|
||||
(t 'lazy-cdaar m:lazy
|
||||
(cdaar (list (list (list 1))))
|
||||
:: {(cdaar (list (list (list 1))))} -> {empty})
|
||||
(t 'lazy-cdadr m:lazy
|
||||
(cdadr (list 1 (list 1)))
|
||||
:: {(cdadr (list 1 (list 1)))} -> {empty})
|
||||
(t 'lazy-cddar m:lazy
|
||||
(cddar (list (list 1 2)))
|
||||
:: {(cddar (list (list 1 2)))} -> {empty})
|
||||
(t 'lazy-cdddr m:lazy
|
||||
(cdddr (list 1 2 3))
|
||||
:: {(cdddr (list 1 2 3))} -> {empty})
|
||||
(t 'lazy-caaaar m:lazy
|
||||
(caaaar (list (list (list (list 1)))))
|
||||
:: {(caaaar (list (list (list (list 1)))))} -> {1})
|
||||
(t 'lazy-caaadr m:lazy
|
||||
(caaadr (list 1 (list (list 1))))
|
||||
:: {(caaadr (list 1 (list (list 1))))} -> {1})
|
||||
(t 'lazy-caadar m:lazy
|
||||
(caadar (list (list 1 (list 2))))
|
||||
:: {(caadar (list (list 1 (list 2))))} -> {2})
|
||||
(t 'lazy-caaddr m:lazy
|
||||
(caaddr (list 1 2 (list 1)))
|
||||
:: {(caaddr (list 1 2 (list 1)))} -> {1})
|
||||
(t 'lazy-cadaar m:lazy
|
||||
(cadaar (list (list (list 1 2))))
|
||||
:: {(cadaar (list (list (list 1 2))))} -> {2})
|
||||
(t 'lazy-cadadr m:lazy
|
||||
(cadadr (list 1 (list 1 2)))
|
||||
:: {(cadadr (list 1 (list 1 2)))} -> {2})
|
||||
(t 'lazy-caddar m:lazy
|
||||
(caddar (list (list 1 2 3)))
|
||||
:: {(caddar (list (list 1 2 3)))} -> {3})
|
||||
(t 'lazy-cadddr m:lazy
|
||||
(cadddr (list 1 2 3 4))
|
||||
:: {(cadddr (list 1 2 3 4))} -> {4})
|
||||
(t 'lazy-cdaaar m:lazy
|
||||
(cdaaar (list (list (list (list 1)))))
|
||||
:: {(cdaaar (list (list (list (list 1)))))} -> {empty})
|
||||
(t 'lazy-cdaadr m:lazy
|
||||
(cdaadr (list 1 (list (list 1))))
|
||||
:: {(cdaadr (list 1 (list (list 1))))} -> {empty})
|
||||
(t 'lazy-cdadar m:lazy
|
||||
(cdadar (list (list 1 (list 2))))
|
||||
:: {(cdadar (list (list 1 (list 2))))} -> {empty})
|
||||
(t 'lazy-cdaddr m:lazy
|
||||
(cdaddr (list 1 2 (list 1)))
|
||||
:: {(cdaddr (list 1 2 (list 1)))} -> {empty})
|
||||
(t 'lazy-cddaar m:lazy
|
||||
(cddaar (list (list (list 1 2))))
|
||||
:: {(cddaar (list (list (list 1 2))))} -> {empty})
|
||||
(t 'lazy-cddadr m:lazy
|
||||
(cddadr (list 1 (list 1 2)))
|
||||
:: {(cddadr (list 1 (list 1 2)))} -> {empty})
|
||||
(t 'lazy-cdddar m:lazy
|
||||
(cdddar (list (list 1 2 3)))
|
||||
:: {(cdddar (list (list 1 2 3)))} -> {empty})
|
||||
(t 'lazy-cddddr m:lazy
|
||||
(cddddr (list 1 2 3 4))
|
||||
:: {(cddddr (list 1 2 3 4))} -> {empty})
|
||||
(t 'lazy-second m:lazy
|
||||
(second (list 1 2 3 4 5 6 7 8))
|
||||
:: {(second (list 1 2 3 4 5 6 7 8))} -> {2})
|
||||
(t 'lazy-third m:lazy
|
||||
(third (list 1 2 3 4 5 6 7 8))
|
||||
:: {(third (list 1 2 3 4 5 6 7 8))} -> {3})
|
||||
(t 'lazy-fourth m:lazy
|
||||
(fourth (list 1 2 3 4 5 6 7 8))
|
||||
:: {(fourth (list 1 2 3 4 5 6 7 8))} -> {4})
|
||||
(t 'lazy-fifth m:lazy
|
||||
(fifth (list 1 2 3 4 5 6 7 8))
|
||||
:: {(fifth (list 1 2 3 4 5 6 7 8))} -> {5})
|
||||
(t 'lazy-sixth m:lazy
|
||||
(sixth (list 1 2 3 4 5 6 7 8))
|
||||
:: {(sixth (list 1 2 3 4 5 6 7 8))} -> {6})
|
||||
(t 'lazy-seventh m:lazy
|
||||
(seventh (list 1 2 3 4 5 6 7 8))
|
||||
:: {(seventh (list 1 2 3 4 5 6 7 8))} -> {7})
|
||||
(t 'lazy-eighth m:lazy
|
||||
(eighth (list 1 2 3 4 5 6 7 8))
|
||||
:: {(eighth (list 1 2 3 4 5 6 7 8))} -> {8})
|
||||
|
||||
(t 'lazy-list4 m:lazy
|
||||
(caaaar (cdddar (list (list ,err ,err ,err (list (list (list (+ 1 2))))))))
|
||||
:: (caaaar {(cdddar (list (list ,err ,err ,err (list (list (list (+ 1 2)))))))})
|
||||
-> (caaaar {(list (list (list (list (+ 1 2)))))})
|
||||
:: {(caaaar (list (list (list (list (+ 1 2))))))} -> {(+ 1 2)} -> {3})
|
||||
|
||||
; lazy-list5
|
||||
; (define (f x) (+ (car (caar x)) (cadr (cddr x))))
|
||||
; (f (list (list (list (+ 1 2))) (/ 1 0) (/ 1 0) (+ 3 4)))
|
||||
(let* ([make-rand1 (λ (x) `(car (caar ,x)))]
|
||||
[make-rand2 (λ (x) `(cadr (cddr ,x)))]
|
||||
[rand1 (make-rand1 'x)]
|
||||
[rand2 (make-rand2 'x)]
|
||||
[make-body (λ (x) `(+ ,(make-rand1 x) ,(make-rand2 x)))]
|
||||
[body (make-body 'x)]
|
||||
[def `(define (f x) ,body)]
|
||||
[lam `(lambda (x) ,body)]
|
||||
[subarg1 '(+ 1 2)]
|
||||
[subarg2 `(list ,subarg1)]
|
||||
[subarg3 '(+ 3 4)]
|
||||
[subarg4 `(list ,err ,subarg3)]
|
||||
[make-arg (λ (x y) `(list (list ,x) ,err ,err ,y))]
|
||||
[arg (make-arg subarg2 subarg3)]
|
||||
[body-subst (make-body arg)]
|
||||
[rand2-subst (make-rand2 arg)])
|
||||
(t 'lazy-list5 m:lazy
|
||||
,def (f ,arg)
|
||||
:: ,def ({f} ,arg) -> ,def ({,lam} ,arg)
|
||||
:: ,def {(,lam ,arg)} -> ,def {,body-subst}
|
||||
:: ,def (+ (car {(caar ,arg)}) ,rand2-subst)
|
||||
-> ,def (+ (car {,subarg2}) ,rand2-subst)
|
||||
:: ,def (+ {(car ,subarg2)} ,rand2-subst)
|
||||
-> ,def (+ {,subarg1} ,rand2-subst)
|
||||
:: ,def (+ {,subarg1} (cadr (cddr (list (list (list {,subarg1})) ,err ,err ,subarg3))))
|
||||
-> ,def (+ {3} (cadr (cddr (list (list (list {3})) ,err ,err ,subarg3))))
|
||||
:: ,def (+ 3 (cadr {(cddr (list (list (list 3)) ,err ,err ,subarg3))}))
|
||||
-> ,def (+ 3 (cadr {,subarg4}))
|
||||
:: ,def (+ 3 {(cadr ,subarg4)})
|
||||
-> ,def (+ 3 {,subarg3}) -> ,def (+ 3 {7})
|
||||
:: ,def {(+ 3 7)} -> ,def {10}))
|
||||
|
||||
|
||||
#;
|
||||
(t1 'teachpack-callbacks
|
||||
(test-teachpack-sequence
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user