827 lines
30 KiB
Scheme
827 lines
30 KiB
Scheme
#lang scheme/base
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(require compiler/zo-parse
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scheme/match)
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(provide zo-marshal)
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;; Doesn't write as compactly as MzScheme, since list and pair sequences
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;; are not compacted, and symbols are not written in short form
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(define (zo-marshal top)
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(match top
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[(struct compilation-top (max-let-depth prefix form))
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(let ([encountered (make-hasheq)]
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[shared (make-hasheq)])
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(let ([visit (lambda (v)
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(if (hash-ref shared v #f)
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#f
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(if (hash-ref encountered v #f)
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(begin
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(hash-set! shared v (add1 (hash-count shared)))
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#f)
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(begin
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(hash-set! encountered v #t)
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(when (closure? v)
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(hash-set! shared v (add1 (hash-count shared))))
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#t))))])
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(traverse-prefix prefix visit)
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(traverse-form form visit))
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(let* ([s (open-output-bytes)]
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[out (make-out s (lambda (v) (hash-ref shared v #f)))]
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[offsets
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(map (lambda (v)
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(let ([v (cdr v)])
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(begin0
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(file-position s)
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(out-anything v (make-out
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s
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(let ([skip? #t])
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(lambda (v2)
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(if (and skip? (eq? v v2))
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(begin
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(set! skip? #f)
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#f)
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(hash-ref shared v2 #f)))))))))
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(sort (hash-map shared (lambda (k v) (cons v k)))
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<
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#:key car))]
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[post-shared (file-position s)]
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[all-short? (post-shared . < . #xFFFF)])
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(out-data (list* max-let-depth prefix (protect-quote form)) out)
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(let ([res (get-output-bytes s)])
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(bytes-append #"#~"
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(bytes (string-length (version)))
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(string->bytes/latin-1 (version))
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(int->bytes (add1 (hash-count shared)))
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(bytes (if all-short?
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1
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0))
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(apply
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bytes-append
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(map (lambda (o)
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(integer->integer-bytes o
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(if all-short? 2 4)
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#f
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#f))
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offsets))
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(int->bytes post-shared)
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(int->bytes (bytes-length res))
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res))))]))
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;; ----------------------------------------
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(define (traverse-prefix a-prefix visit)
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(match a-prefix
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[(struct prefix (num-lifts toplevels stxs))
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(for-each (lambda (stx) (traverse-toplevel stx visit)) toplevels)
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(for-each (lambda (stx) (traverse-stx stx visit)) stxs)]))
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(define (traverse-module mod-form visit)
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(match mod-form
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[(struct mod (name self-modidx prefix provides requires body syntax-body unexported
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max-let-depth dummy lang-info internal-context))
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(traverse-data name visit)
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(traverse-data self-modidx visit)
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(traverse-prefix prefix visit)
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(for-each (lambda (f) (map (lambda (v) (traverse-data v visit)) (cdr f))) requires)
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(for-each (lambda (f) (traverse-form f visit)) body)
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(for-each (lambda (f) (traverse-form f visit)) syntax-body)
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(traverse-data lang-info visit)
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(traverse-data internal-context visit)]))
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(define (traverse-toplevel tl visit)
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(match tl
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[#f (void)]
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[(? symbol?) (traverse-data tl visit)]
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[(struct global-bucket (name))
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(void)]
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[(struct module-variable (modidx sym pos phase))
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(visit tl)
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(let-values ([(p b) (module-path-index-split modidx)])
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(if (symbol? p)
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(traverse-data p visit)
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(traverse-data modidx visit)))
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(traverse-data sym visit)]))
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(define (traverse-stx tl visit)
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(error "cannot handle syntax objects, yet"))
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(define (traverse-form form visit)
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(match form
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[(? mod?)
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(traverse-module form visit)]
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[(struct def-values (ids rhs))
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(traverse-expr rhs visit)]
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[(struct def-syntaxes (ids rhs prefix max-let-depth))
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(traverse-prefix prefix visit)
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(traverse-expr rhs visit)]
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[(struct def-for-syntax (ids rhs prefix max-let-depth))
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(traverse-prefix prefix visit)
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(traverse-expr rhs visit)]
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[(struct seq (forms))
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(for-each (lambda (f) (traverse-form f visit)) forms)]
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[(struct splice (forms))
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(for-each (lambda (f) (traverse-form f visit)) forms)]
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[else
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(traverse-expr form visit)]))
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(define (traverse-expr expr visit)
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(match expr
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[(struct toplevel (depth pos const? ready?))
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(void)]
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[(struct topsyntax (depth pos midpt))
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(void)]
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[(struct primval (id))
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(void)]
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[(struct assign (id rhs undef-ok?))
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(traverse-expr rhs visit)]
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[(struct localref (unbox? offset clear? other-clears? flonum?))
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(void)]
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[(? lam?)
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(traverse-lam expr visit)]
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[(struct case-lam (name lams))
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(traverse-data name visit)
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(for-each (lambda (lam) (traverse-lam lam visit)) lams)]
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[(struct let-one (rhs body flonum?))
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(traverse-expr rhs visit)
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(traverse-expr body visit)]
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[(struct let-void (count boxes? body))
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(traverse-expr body visit)]
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[(struct let-rec (procs body))
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(for-each (lambda (lam) (traverse-lam lam visit)) procs)
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(traverse-expr body visit)]
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[(struct install-value (count pos boxes? rhs body))
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(traverse-expr rhs visit)
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(traverse-expr body visit)]
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[(struct boxenv (pos body))
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(traverse-expr body visit)]
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[(struct branch (test then else))
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(traverse-expr test visit)
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(traverse-expr then visit)
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(traverse-expr else visit)]
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[(struct application (rator rands))
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(traverse-expr rator visit)
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(for-each (lambda (rand) (traverse-expr rand visit)) rands)]
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[(struct apply-values (proc args-expr))
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(traverse-expr proc visit)
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(traverse-expr args-expr visit)]
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[(struct seq (exprs))
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(for-each (lambda (expr) (traverse-expr expr visit)) exprs)]
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[(struct beg0 (exprs))
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(for-each (lambda (expr) (traverse-expr expr visit)) exprs)]
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[(struct with-cont-mark (key val body))
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(traverse-expr key visit)
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(traverse-expr val visit)
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(traverse-expr body visit)]
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[(struct closure (lam gen-id))
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(traverse-lam expr visit)]
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[(struct indirect (val))
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(traverse-expr val visit)]
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[else (traverse-data expr visit)]))
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(define (traverse-data expr visit)
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(cond
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[(or (symbol? expr)
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(keyword? expr)
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(string? expr)
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(bytes? expr)
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(path? expr))
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(visit expr)]
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[(module-path-index? expr)
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(visit expr)
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(let-values ([(name base) (module-path-index-split expr)])
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(traverse-data name visit)
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(traverse-data base visit))]
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[(pair? expr)
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(traverse-data (car expr) visit)
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(traverse-data (cdr expr) visit)]
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[else (void)]))
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(define (traverse-lam expr visit)
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(match expr
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[(struct indirect (val)) (traverse-lam val visit)]
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[(struct closure (lam gen-id))
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(when (visit expr)
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(traverse-lam lam visit))]
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[(struct lam (name flags num-params param-types rest? closure-map closure-types max-let-depth body))
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(traverse-data name visit)
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(traverse-expr body visit)]))
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;; ----------------------------------------
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(define toplevel-type-num 0)
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(define syntax-type-num 3)
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(define sequence-type-num 7)
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(define unclosed-procedure-type-num 9)
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(define let-value-type-num 10)
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(define let-void-type-num 11)
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(define letrec-type-num 12)
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(define wcm-type-num 14)
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(define quote-syntax-type-num 15)
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(define variable-type-num 24)
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(define top-type-num 87)
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(define case-lambda-sequence-type-num 96)
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(define begin0-sequence-type-num 97)
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(define module-type-num 100)
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(define prefix-type-num 102)
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(define-syntax define-enum
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(syntax-rules ()
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[(_ n) (begin)]
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[(_ n id . rest)
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(begin
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(define id n)
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(define-enum (add1 n) . rest))]))
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(define-enum
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0
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CPT_ESCAPE
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CPT_SYMBOL
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CPT_SYMREF
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CPT_WEIRD_SYMBOL
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CPT_KEYWORD
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CPT_BYTE_STRING
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CPT_CHAR_STRING
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CPT_CHAR
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CPT_INT
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CPT_NULL
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CPT_TRUE
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CPT_FALSE
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CPT_VOID
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CPT_BOX
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CPT_PAIR
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CPT_LIST
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CPT_VECTOR
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CPT_HASH_TABLE
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CPT_STX
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CPT_LET_ONE_FLONUM
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CPT_MARSHALLED
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CPT_QUOTE
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CPT_REFERENCE
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CPT_LOCAL
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CPT_LOCAL_UNBOX
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CPT_SVECTOR
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CPT_APPLICATION
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CPT_LET_ONE
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CPT_BRANCH
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CPT_MODULE_INDEX
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CPT_MODULE_VAR
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CPT_PATH
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CPT_CLOSURE
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CPT_DELAY_REF
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CPT_PREFAB)
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(define-enum
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0
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DEFINE_VALUES_EXPD
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DEFINE_SYNTAX_EXPD
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SET_EXPD
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CASE_LAMBDA_EXPD
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BEGIN0_EXPD
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BOXENV_EXPD
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MODULE_EXPD
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REQUIRE_EXPD
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DEFINE_FOR_SYNTAX_EXPD
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REF_EXPD
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APPVALS_EXPD
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SPLICE_EXPD)
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(define CPT_SMALL_LOCAL_START 192)
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(define CPT_SMALL_LOCAL_END 207)
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(define CPT_SMALL_LOCAL_UNBOX_START 207)
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(define CPT_SMALL_LOCAL_UNBOX_END 222)
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(define CPT_SMALL_APPLICATION_START 247)
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(define CPT_SMALL_APPLICATION_END 255)
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(define CLOS_HAS_REST 1)
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(define CLOS_HAS_REF_ARGS 2)
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(define CLOS_PRESERVES_MARKS 4)
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(define CLOS_IS_METHOD 16)
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(define CLOS_SINGLE_RESULT 32)
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(define BITS_PER_MZSHORT 32)
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(define *dummy* #f)
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(define (int->bytes x)
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(integer->integer-bytes x
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4
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#f
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#f))
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(define-struct case-seq (name lams))
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(define-struct (seq0 seq) ())
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(define-struct out (s shared-index))
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(define (out-shared v out k)
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(let ([v ((out-shared-index out) v)])
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(if v
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(begin
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(out-byte CPT_SYMREF out)
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(out-number v out))
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(k))))
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(define (out-byte v out)
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(write-byte v (out-s out)))
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(define (out-bytes b out)
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(write-bytes b (out-s out)))
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(define (out-number n out)
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(cond
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[(n . < . 0)
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(if (n . > . -32)
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(out-byte (bitwise-ior #xC0 (- n)) out)
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(begin
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(out-byte #xE0 out)
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(out-bytes (int->bytes (- n)) out)))]
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[(n . < . 128)
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(out-byte n out)]
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[(n . < . #x4000)
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(out-byte (bitwise-ior #x80 (bitwise-and n #x3F)) out)
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(out-byte (bitwise-and #xFF (arithmetic-shift n -6)) out)]
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[else
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(out-bytes #xF0 out)
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(out-bytes (int->bytes n) out)]))
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(define (out-syntax key val out)
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(out-marshaled syntax-type-num (list* key val) out))
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(define (out-marshaled type-num val out)
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(out-byte CPT_MARSHALLED out)
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(out-number type-num out)
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(out-data val out))
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(define (out-anything v out)
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(cond
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[(module-variable? v)
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(out-toplevel v out)]
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[(closure? v)
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(out-expr v out)]
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[else
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(out-data v out)]))
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(define (out-prefix a-prefix out)
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(match a-prefix
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[(struct prefix (num-lifts toplevels stxs))
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(out-marshaled
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prefix-type-num
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(cons num-lifts
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(cons (list->vector toplevels)
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(list->vector stxs)))
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out)]))
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(define-struct module-decl (content))
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(define (out-module mod-form out)
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(match mod-form
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[(struct mod (name self-modidx prefix provides requires body syntax-body unexported
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max-let-depth dummy lang-info internal-context))
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(out-syntax MODULE_EXPD
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(let* ([lookup-req (lambda (phase)
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(let ([a (assq phase requires)])
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(if a
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(cdr a)
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null)))]
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[other-requires (filter (lambda (l)
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(not (memq (car l) '(#f -1 0 1))))
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requires)]
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[extract-protects
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(lambda (phase)
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(let ([a (assq phase provides)])
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(and a
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(let ([p (map provided-protected? (append (cadr a)
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(caddr a)))])
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(if (ormap values p)
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(list->vector p)
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#f)))))]
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[list->vector/#f (lambda (default l)
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(if (andmap (lambda (x) (equal? x default)) l)
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#f
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(list->vector l)))]
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[l (map cdr other-requires)]
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[l (cons (length other-requires) l)]
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[l (cons (lookup-req #f) l)] ; dt-requires
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[l (cons (lookup-req -1) l)] ; tt-requires
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[l (cons (lookup-req 1) l)] ; et-requires
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[l (cons (lookup-req 0) l)] ; requires
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[l (cons (list->vector body) l)]
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[l (cons (list->vector syntax-body) l)]
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[l (append (apply
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append
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(map (lambda (l)
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(let ([phase (car l)]
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[all (append (cadr l) (caddr l))])
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(list phase
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(list->vector/#f #f (map provided-insp all))
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(list->vector/#f 0 (map (lambda (p) (= 1 (provided-src-phase p)))
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all))
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(list->vector/#f #f (map (lambda (p)
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(if (eq? (provided-nom-src p)
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(provided-src p))
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#f ; #f means "same as src"
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(provided-nom-src p)))
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all))
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(list->vector (map provided-src-name all))
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(list->vector (map provided-src all))
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(list->vector (map provided-name all))
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(length (cadr l))
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(length all))))
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provides))
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l)]
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[l (cons (length provides) l)] ; number of provide sets
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[l (cons (extract-protects 0) l)] ; protects
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[l (cons (extract-protects 1) l)] ; et protects
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[l (list* (list->vector (car unexported)) (length (car unexported)) l)] ; indirect-provides
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[l (list* (list->vector (cadr unexported)) (length (cadr unexported)) l)] ; indirect-syntax-provides
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[l (list* (list->vector (caddr unexported)) (length (caddr unexported)) l)] ; indirect-et-provides
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[l (cons prefix l)]
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[l (cons dummy l)]
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[l (cons max-let-depth l)]
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[l (cons internal-context l)] ; module->namespace syntax
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[l (list* #f #f l)] ; obsolete `functional?' info
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[l (cons lang-info l)] ; lang-info
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[l (cons self-modidx l)]
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[l (cons name l)])
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(make-module-decl l))
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out)]))
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|
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(define (out-toplevel tl out)
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(match tl
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[#f (out-data tl out)]
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[(? symbol?) (out-data tl out)]
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[(struct global-bucket (name))
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(out-marshaled variable-type-num name out)]
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[(struct module-variable (modidx sym pos phase))
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(out-shared
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tl
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out
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(lambda ()
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(out-byte CPT_MODULE_VAR out)
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(let-values ([(p b) (module-path-index-split modidx)])
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(if (symbol? p)
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(out-data p out)
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(out-data modidx out)))
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(out-data sym out)
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(unless (zero? phase)
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(out-number -2 out))
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(out-number pos out)))]))
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(define (out-stx tl out)
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(error "cannot handle syntax objects, yet"))
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|
|
|
(define (out-form form out)
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(match form
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[(? mod?)
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(out-module form out)]
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[(struct def-values (ids rhs))
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(out-syntax DEFINE_VALUES_EXPD
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(list->vector (cons rhs ids))
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out)]
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[(struct def-syntaxes (ids rhs prefix max-let-depth))
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|
(out-syntax DEFINE_SYNTAX_EXPD
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|
(list->vector (list* rhs
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prefix
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max-let-depth
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|
*dummy*
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ids))
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out)]
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[(struct def-for-syntax (ids rhs prefix max-let-depth))
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(out-syntax DEFINE_FOR_SYNTAX_EXPD
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(list->vector (list* rhs
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prefix
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max-let-depth
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*dummy*
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ids))
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out)]
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[(struct seq0 (forms))
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(out-marshaled begin0-sequence-type-num (map protect-quote forms) out)]
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|
[(struct seq (forms))
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(out-marshaled sequence-type-num (map protect-quote forms) out)]
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|
[(struct splice (forms))
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(out-syntax SPLICE_EXPD (make-seq forms) out)]
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|
[(struct req (reqs dummy))
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|
(error "cannot handle top-level `require', yet")
|
|
(out-syntax REQUIRE_EXPD (cons dummy reqs) out)]
|
|
[else
|
|
(out-expr form out)]))
|
|
|
|
(define (out-expr expr out)
|
|
(match expr
|
|
[(struct toplevel (depth pos const? ready?))
|
|
(out-marshaled toplevel-type-num
|
|
(cons
|
|
depth
|
|
(if (or const? ready?)
|
|
(cons pos
|
|
(bitwise-ior
|
|
(if const? #x1 0)
|
|
(if ready? #x2 0)))
|
|
pos))
|
|
out)]
|
|
[(struct topsyntax (depth pos midpt))
|
|
(out-marshaled quote-syntax-type-num
|
|
(cons depth
|
|
(cons pos midpt))
|
|
out)]
|
|
[(struct primval (id))
|
|
(out-byte CPT_REFERENCE out)
|
|
(out-number id out)]
|
|
[(struct assign (id rhs undef-ok?))
|
|
(out-syntax SET_EXPD
|
|
(cons undef-ok? (cons id rhs))
|
|
out)]
|
|
[(struct localref (unbox? offset clear? other-clears? flonum?))
|
|
(if (and (not clear?) (not other-clears?) (not flonum?)
|
|
(offset . < . (- CPT_SMALL_LOCAL_END CPT_SMALL_LOCAL_START)))
|
|
(out-byte (+ (if unbox?
|
|
CPT_SMALL_LOCAL_UNBOX_START
|
|
CPT_SMALL_LOCAL_START)
|
|
offset)
|
|
out)
|
|
(begin
|
|
(out-byte (if unbox? CPT_LOCAL_UNBOX CPT_LOCAL) out)
|
|
(if (not (or clear? other-clears? flonum?))
|
|
(out-number offset out)
|
|
(begin
|
|
(out-number (- (add1 offset)) out)
|
|
(out-number (if clear?
|
|
#x1
|
|
(if other-clears?
|
|
#x2
|
|
(if flonum?
|
|
#x3
|
|
0)))
|
|
out)))))]
|
|
[(? lam?)
|
|
(out-lam expr out)]
|
|
[(struct case-lam (name lams))
|
|
(let ([seq (make-case-seq name lams)])
|
|
;; If all closures are empy, generate a case sequence directly
|
|
(if (andmap (lambda (lam)
|
|
(or (closure? lam)
|
|
(and (lam? lam)
|
|
(equal? (lam-closure-map lam) #()))))
|
|
lams)
|
|
(out-data seq out)
|
|
(out-syntax CASE_LAMBDA_EXPD
|
|
seq
|
|
out)))]
|
|
[(struct case-seq (name lams))
|
|
(out-marshaled case-lambda-sequence-type-num
|
|
(cons (or name null)
|
|
lams)
|
|
out)]
|
|
[(struct let-one (rhs body flonum?))
|
|
(out-byte (if flonum? CPT_LET_ONE_FLONUM CPT_LET_ONE) out)
|
|
(out-expr (protect-quote rhs) out)
|
|
(out-expr (protect-quote body) out)]
|
|
[(struct let-void (count boxes? body))
|
|
(out-marshaled let-void-type-num
|
|
(list*
|
|
count
|
|
boxes?
|
|
(protect-quote body))
|
|
out)]
|
|
[(struct let-rec (procs body))
|
|
(out-marshaled letrec-type-num
|
|
(list*
|
|
(length procs)
|
|
(protect-quote body)
|
|
procs)
|
|
out)]
|
|
[(struct install-value (count pos boxes? rhs body))
|
|
(out-marshaled let-value-type-num
|
|
(list*
|
|
count
|
|
pos
|
|
boxes?
|
|
(protect-quote rhs)
|
|
(protect-quote body))
|
|
out)]
|
|
[(struct boxenv (pos body))
|
|
(out-syntax BOXENV_EXPD
|
|
(cons
|
|
pos
|
|
(protect-quote body))
|
|
out)]
|
|
[(struct branch (test then else))
|
|
(out-byte CPT_BRANCH out)
|
|
(out-expr (protect-quote test) out)
|
|
(out-expr (protect-quote then) out)
|
|
(out-expr (protect-quote else) out)]
|
|
[(struct application (rator rands))
|
|
(if ((length rands) . < . (- CPT_SMALL_APPLICATION_END CPT_SMALL_APPLICATION_START))
|
|
(out-byte (+ CPT_SMALL_APPLICATION_START (length rands)) out)
|
|
(begin
|
|
(out-byte CPT_APPLICATION out)
|
|
(out-number (length rands) out)))
|
|
(for-each (lambda (e) (out-expr (protect-quote e) out))
|
|
(cons rator rands))]
|
|
[(struct apply-values (proc args-expr))
|
|
(out-syntax APPVALS_EXPD
|
|
(cons (protect-quote proc)
|
|
(protect-quote args-expr))
|
|
out)]
|
|
[(struct seq (exprs))
|
|
(out-form expr out)]
|
|
[(struct beg0 (exprs))
|
|
(out-syntax BEGIN0_EXPD
|
|
(make-seq0 exprs)
|
|
out)]
|
|
[(struct with-cont-mark (key val body))
|
|
(out-marshaled wcm-type-num
|
|
(list*
|
|
(protect-quote key)
|
|
(protect-quote val)
|
|
(protect-quote body))
|
|
out)]
|
|
[(struct closure (lam gen-id))
|
|
(out-lam expr out)]
|
|
[(struct indirect (val))
|
|
(out-expr val out)]
|
|
[(struct varref (expr))
|
|
(out-syntax REF_EXPD
|
|
expr
|
|
out)]
|
|
[else (out-value expr out)]))
|
|
|
|
(define (out-lam expr out)
|
|
(match expr
|
|
[(struct indirect (val)) (out-lam val out)]
|
|
[(struct closure (lam gen-id))
|
|
(out-shared
|
|
expr
|
|
out
|
|
(lambda ()
|
|
(out-byte CPT_CLOSURE out)
|
|
(out-number ((out-shared-index out) expr) out)
|
|
(out-lam lam out)))]
|
|
[(struct lam (name flags num-params param-types rest? closure-map closure-types max-let-depth body))
|
|
(let* ([l (protect-quote body)]
|
|
[any-refs? (or (ormap (lambda (t) (memq t '(ref flonum))) param-types)
|
|
(ormap (lambda (t) (memq t '(flonum))) closure-types))]
|
|
[num-all-params ((if rest? add1 values) num-params)]
|
|
[l (cons (make-svector (if any-refs?
|
|
(list->vector
|
|
(append
|
|
(vector->list closure-map)
|
|
(let* ([v (make-vector (ceiling
|
|
(/ (* 2 (+ num-params (vector-length closure-map)))
|
|
BITS_PER_MZSHORT)))]
|
|
[set-bit! (lambda (i bit)
|
|
(let ([pos (quotient (* 2 i) BITS_PER_MZSHORT)])
|
|
(vector-set! v pos
|
|
(bitwise-ior (vector-ref v pos)
|
|
(arithmetic-shift
|
|
bit
|
|
(modulo (* 2 i) BITS_PER_MZSHORT))))))])
|
|
(for ([t (in-list param-types)]
|
|
[i (in-naturals)])
|
|
(when (eq? t 'ref) (set-bit! i 1))
|
|
(when (eq? t 'flonum) (set-bit! i 2)))
|
|
(for ([t (in-list closure-types)]
|
|
[i (in-naturals num-all-params)])
|
|
(when (eq? t 'flonum) (set-bit! i 2)))
|
|
(vector->list v))))
|
|
closure-map))
|
|
l)]
|
|
[l (if any-refs?
|
|
(cons (vector-length closure-map) l)
|
|
l)])
|
|
(out-marshaled unclosed-procedure-type-num
|
|
(list*
|
|
(+ (if rest? CLOS_HAS_REST 0)
|
|
(if any-refs? CLOS_HAS_REF_ARGS 0)
|
|
(if (memq 'preserves-marks flags) CLOS_PRESERVES_MARKS 0)
|
|
(if (memq 'is-method flags) CLOS_IS_METHOD 0)
|
|
(if (memq 'single-result flags) CLOS_SINGLE_RESULT 0))
|
|
num-all-params
|
|
max-let-depth
|
|
name
|
|
l)
|
|
out))]))
|
|
|
|
(define (out-as-bytes expr ->bytes CPT len2 out)
|
|
(out-shared expr out (lambda ()
|
|
(let ([s (->bytes expr)])
|
|
(out-byte CPT out)
|
|
(out-number (bytes-length s) out)
|
|
(when len2 (out-number len2 out))
|
|
(out-bytes s out)))))
|
|
|
|
(define (out-data expr out)
|
|
(cond
|
|
[(prefix? expr) (out-prefix expr out)]
|
|
[(global-bucket? expr) (out-toplevel expr out)]
|
|
[(module-variable? expr) (out-toplevel expr out)]
|
|
[else (out-form expr out)]))
|
|
|
|
(define (out-value expr out)
|
|
(cond
|
|
[(symbol? expr)
|
|
(out-as-bytes expr
|
|
(compose string->bytes/utf-8 symbol->string)
|
|
CPT_SYMBOL
|
|
#f
|
|
out)]
|
|
[(keyword? expr)
|
|
(out-as-bytes expr
|
|
(compose string->bytes/utf-8 keyword->string)
|
|
CPT_KEYWORD
|
|
#f
|
|
out)]
|
|
[(string? expr)
|
|
(out-as-bytes expr
|
|
string->bytes/utf-8
|
|
CPT_CHAR_STRING
|
|
(string-length expr)
|
|
out)]
|
|
[(bytes? expr)
|
|
(out-as-bytes expr
|
|
values
|
|
CPT_BYTE_STRING
|
|
#f
|
|
out)]
|
|
[(path? expr)
|
|
(out-as-bytes expr
|
|
path->bytes
|
|
CPT_PATH
|
|
#f
|
|
out)]
|
|
[(char? expr)
|
|
(out-byte CPT_CHAR out)
|
|
(out-number (char->integer expr) out)]
|
|
[(and (exact-integer? expr)
|
|
(and (expr . >= . -1073741824) (expr . <= . 1073741823)))
|
|
(out-byte CPT_INT out)
|
|
(out-number expr out)]
|
|
[(null? expr)
|
|
(out-byte CPT_NULL out)]
|
|
[(eq? expr #t)
|
|
(out-byte CPT_TRUE out)]
|
|
[(eq? expr #f)
|
|
(out-byte CPT_FALSE out)]
|
|
[(void? expr)
|
|
(out-byte CPT_VOID out)]
|
|
[(box? expr)
|
|
(out-byte CPT_BOX out)
|
|
(out-data (unbox expr) out)]
|
|
[(pair? expr)
|
|
(out-byte CPT_LIST out)
|
|
(out-number 1 out)
|
|
(out-data (car expr) out)
|
|
(out-data (cdr expr) out)]
|
|
[(vector? expr)
|
|
(out-byte CPT_VECTOR out)
|
|
(out-number (vector-length expr) out)
|
|
(for ([v (in-vector expr)])
|
|
(out-data v out))]
|
|
[(hash? expr)
|
|
(out-byte CPT_HASH_TABLE out)
|
|
(out-number (cond
|
|
[(hash-eqv? expr) 2]
|
|
[(hash-eq? expr) 0]
|
|
[else 1]))
|
|
(for ([(k v) (in-hash expr)])
|
|
(out-data k out)
|
|
(out-data v out))]
|
|
[(svector? expr)
|
|
(out-byte CPT_SVECTOR out)
|
|
(out-number (vector-length (svector-vec expr)) out)
|
|
(let ([vec (svector-vec expr)])
|
|
(for ([n (in-range (sub1 (vector-length vec)) -1 -1)])
|
|
(out-number (vector-ref vec n) out)))]
|
|
[(module-path-index? expr)
|
|
(out-shared expr out
|
|
(lambda ()
|
|
(out-byte CPT_MODULE_INDEX out)
|
|
(let-values ([(name base) (module-path-index-split expr)])
|
|
(out-data name out)
|
|
(out-data base out))))]
|
|
[(module-decl? expr)
|
|
(out-marshaled module-type-num
|
|
(module-decl-content expr)
|
|
out)]
|
|
[else
|
|
(out-byte CPT_QUOTE out)
|
|
(let ([s (open-output-bytes)])
|
|
(write (if (quoted? expr) (quoted-v expr) expr) s)
|
|
(out-byte CPT_ESCAPE out)
|
|
(let ([bstr (get-output-bytes s)])
|
|
(out-number (bytes-length bstr) out)
|
|
(out-bytes bstr out)))]))
|
|
|
|
(define-struct quoted (v))
|
|
(define (protect-quote v)
|
|
(if (or (list? v) (vector? v) (box? v) (hash? v))
|
|
(make-quoted v)
|
|
v))
|
|
|
|
(define-struct svector (vec))
|
|
|
|
;; ----------------------------------------
|
|
|