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restart lib

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original commit: 140a263d37f62dd231a8ba3a1c3a5a86d6d2c8d2
This commit is contained in:
Matthew Flatt 1998-02-05 16:41:43 +00:00
commit ebe3ed0e6c
2 changed files with 23 additions and 57 deletions
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37
collects/mzlib/functior.ss
View File

@ -197,22 +197,29 @@
[(f init l) (fold-one f init l)]
[(f init l . ls) (fold-n f init (cons l ls))]))))
(define make-find
(lambda (name whole-list?)
(polymorphic
(lambda (f list)
(unless (and (procedure? f)
(procedure-arity-includes? f 1))
(raise-type-error name "procedure (arity 1)" f))
(let loop ([l list])
(cond
[(null? l) #f]
[(not (pair? l))
(raise (make-exn:application:list
(format "~a: second argument must be a (proper) list; given ~e" name list)
((debug-info-handler))
list))]
[(f (car l)) (if whole-list? l (car l))]
[else (loop (cdr l))]))))))
(define assf
(polymorphic
(lambda (f list)
(unless (and (procedure? f)
(procedure-arity-includes? f 1))
(raise-type-error 'assf "procedure (arity 1)" f))
(let loop ([l list])
(cond
[(null? l) #f]
[(not (pair? l))
(raise (make-exn:application:list
(format "assf: second argument must be a (proper) list; given ~e" list)
((debug-info-handler))
list))]
[(f (car l)) (car l)]
[else (loop (cdr l))])))))
(make-find 'assf #f))
(define memf
(make-find 'memf #t))
(define filter
(polymorphic

43
collects/mzlib/traceld.ss
View File

@ -1,43 +1,2 @@
(let ([load (current-load)]
[load-extension (current-load-extension)]
[tab ""])
(let ([mk-chain
(lambda (load)
(lambda (filename)
(fprintf (current-error-port)
"~aloading ~a at ~a~n"
tab filename (current-process-milliseconds))
(begin0
(let ([s tab])
(dynamic-wind
(lambda () (set! tab (string-append " " tab)))
(lambda ()
(if (regexp-match "_loader" filename)
(let ([f (load filename)])
(lambda (sym)
(fprintf (current-error-port)
"~atrying ~a~n" tab sym)
(let ([loader (f sym)])
(and loader
(lambda ()
(fprintf (current-error-port)
"~astarting ~a at ~a~n" tab sym
(current-process-milliseconds))
(let ([s tab])
(begin0
(dynamic-wind
(lambda () (set! tab (string-append " " tab)))
(lambda () (loader))
(lambda () (set! tab s)))
(fprintf (current-error-port)
"~adone ~a at ~a~n"
tab sym
(current-process-milliseconds)))))))))
(load filename)))
(lambda () (set! tab s))))
(fprintf (current-error-port)
"~adone ~a at ~a~n"
tab filename (current-process-milliseconds)))))])
(current-load (mk-chain load))
(current-load-extension (mk-chain load-extension))))
(invoke-unit/sig (require-relative-library "traceldr.ss"))