eliminated superfluous require for-syntax, refactored and cleaned up; fixed bug in test?
This commit is contained in:
Matthias Felleisen
parent
8aa4ff1b06
commit
a1c219a068
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@ -10,10 +10,6 @@
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(define PAUSE 1/2) ;; # secs to wait between attempts to connect to server
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(define SQPORT 4567) ;; the port on which universe traffic flows
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(define (K w . r) w)
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(define (False w) #f)
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(define (True w) #t)
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;
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;
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;
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@ -32,6 +28,10 @@
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;; -----------------------------------------------------------------------------
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;; Any -> Boolean
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(define (nat? x)
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(and (number? x) (integer? x) (>= x 0)))
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;; Number Symbol Symbol -> Integer
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(define (number->integer x [t ""] [p ""])
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(check-arg t (and (number? x) (real? x)) "real number" p x)
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@ -1,62 +1,63 @@
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#lang racket
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(provide define-keywords
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DEFAULT
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;; constraint: the first kw is the original one
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;; ---------------------------------------------------------------------------------------------------
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;; provides functions for specifying the shape of big-bang and universe clauses:
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(provide function-with-arity expr-with-check except err)
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;; ... and for checking and processing them
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(provide ;; constraint: the first kw is the original one
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;; and it is also the name of the field in the class
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->args
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function-with-arity expr-with-check except err
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->kwds-in
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clauses-use-kwd
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contains-clause?)
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(require
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(for-syntax "syn-aux-aux.rkt" syntax/parse)
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(for-template "syn-aux-aux.rkt"
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racket
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(rename-in lang/prim (first-order->higher-order f2h))))
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(for-syntax syntax/parse)
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(for-template "clauses-spec-aux.rkt" racket (rename-in lang/prim (first-order->higher-order f2h))))
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(define-syntax (DEFAULT stx)
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(raise-syntax-error 'DEFAULT "used out of context" stx))
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;; ---------------------------------------------------------------------------------------------------
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;; specifying the shape of clauses
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(define-syntax (define-keywords stx)
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(syntax-parse stx #:literals (DEFAULT)
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[(_ the-list super-list define-create
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(kw:identifier
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(~optional kw-alt:identifier #:defaults ((kw-alt #'kw)))
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(~optional (~seq DEFAULT default:expr))
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coerce:expr) ...)
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(let* ([defs (attribute default)])
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#`(begin
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;; define and create list of keywords and associated values
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(define-for-syntax the-list
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(list* (list #'kw #'kw-alt (coerce ''kw) default) ... super-list))
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;; define and provide keywords
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(provide (rename-out (kw kw-alt) ...))
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(provide kw ...)
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(define-syntaxes (kw ...)
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(values (lambda (x)
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(raise-syntax-error 'kw "used out of context" x))
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...))
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;; a macro for creating functions that instantiate the proper object
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;; (define-create para ...) :: additional parameters for the new func
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(define-syntax (define-create stx)
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(syntax-case stx ()
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[(_ para (... ...))
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(let*-values
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([(kwds defs)
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(values (map car the-list) '())]
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;; the defaults list defs is no longer needed
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[(args) (lambda (para*)
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(append para* (foldr cons '() kwds)))]
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[(body) (lambda (para*)
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(map (lambda (x) `(,x ,x)) (append para* kwds)))])
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(let ([para* (syntax->list #'(para (... ...)))])
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#`(lambda (%)
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(lambda #,(args para*)
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(lambda ()
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(new % #,@(body para*)))))))]))))]))
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(define-syntax (expr-with-check stx)
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(syntax-case stx ()
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[(_ check> msg)
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#`(lambda (tag)
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(lambda (p)
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(syntax-case p ()
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[(_ x) #`(check> #,tag x)]
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[_ (err tag p msg)])))]))
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(define-syntax function-with-arity
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(syntax-rules (except)
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[(_ arity)
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(lambda (tag)
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(lambda (p)
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(syntax-case p ()
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[(_ x) #`(proc> #,tag (f2h x) arity)]
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[_ (err tag p)])))]
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[(_ arity except extra)
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(lambda (tag)
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(lambda (p)
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(syntax-case p ()
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[(_ x) #`(proc> #,tag (f2h x) arity)]
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extra
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[_ (err tag p)])))]))
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(define (err spec p . xtras)
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(raise-syntax-error (cadr spec)
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(if (null? xtras)
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"illegal specification"
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(string-append "illegal specification: " (car xtras)))
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p))
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;; ---------------------------------------------------------------------------------------------------
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;; processing actual clauses
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;; KeyWord [Listof Clause] -> Boolean
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;; does this list of clauses contain one that starts with kw?
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(define (contains-clause? kw clause-list)
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(memf (lambda (clause) (free-identifier=? kw (car (syntax->list clause)))) clause-list))
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#|
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transform the clauses into the initial arguments specification
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@ -91,16 +92,25 @@
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(if r ((third s) r) (fourth s)))
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Spec))
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(define (contains-clause? kw clause-list)
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(memf (lambda (clause) (free-identifier=? kw (car (syntax->list clause)))) clause-list))
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;; check whether rec? occurs, produce list of keyword x clause pairs
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(define (clauses-use-kwd stx:list ->rec? legal-clause kwds)
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(define kwd-in? (->kwds-in kwds))
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(define double (string-append legal-clause ", ~a has been redefined"))
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(map (lambda (stx)
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(syntax-case stx ()
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[(kw . E) (kwd-in? #'kw) (begin (->rec? #'kw #'E) (cons #'kw stx))]
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[(kw . E)
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(let ([kw (syntax-e #'kw)])
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(if (member kw (map syntax-e kwds))
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(raise-syntax-error #f (format double kw) stx)
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(raise-syntax-error #f legal-clause stx)))]
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[_ (raise-syntax-error #f legal-clause stx)]))
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stx:list))
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;; Syntax -> Syntax
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;; eventually: convert syntax to keyword
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(define (mk-kwd key)
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(define key:id (symbol->string (syntax-e key)))
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(define key:wd (string->keyword key:id))
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key:wd)
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;; [Listof SyntaxIdentifier] -> (Syntax -> Boolean)
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(define (->kwds-in kwds)
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(lambda (k)
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(and (identifier? k) (for/or ([n kwds]) (free-identifier=? k n)))))
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;; Symbol Syntax Syntax [Listof Kw] -> true
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;; effect: if state0 looks like a clause, raise special error
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@ -124,55 +134,3 @@
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(if x
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(raise-syntax-error tag (format "duplicate ~a clause" id) (cdar x))
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(duplicates? (rest lox))))])))
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;; check whether rec? occurs, produce list of keyword x clause pairs
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(define (clauses-use-kwd stx:list ->rec? legal-clause kwds)
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(define kwd-in? (->kwds-in kwds))
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(define double (string-append legal-clause ", ~a has been redefined"))
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(map (lambda (stx)
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(syntax-case stx ()
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[(kw . E) (kwd-in? #'kw) (begin (->rec? #'kw #'E) (cons #'kw stx))]
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[(kw . E)
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(let ([kw (syntax-e #'kw)])
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(if (member kw (map syntax-e kwds))
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(raise-syntax-error #f (format double kw) stx)
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(raise-syntax-error #f legal-clause stx)))]
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[_ (raise-syntax-error #f legal-clause stx)]))
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stx:list))
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;; [Listof SyntaxIdentifier] -> (Syntax -> Boolean)
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(define (->kwds-in kwds)
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(lambda (k)
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(and (identifier? k) (for/or ([n kwds]) (free-identifier=? k n)))))
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(define-syntax (expr-with-check stx)
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(syntax-case stx ()
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[(_ check> msg)
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#`(lambda (tag)
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(lambda (p)
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(syntax-case p ()
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[(_ x) #`(check> #,tag x)]
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[_ (err tag p msg)])))]))
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(define-syntax function-with-arity
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(syntax-rules (except)
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[(_ arity)
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(lambda (tag)
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(lambda (p)
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(syntax-case p ()
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[(_ x) #`(proc> #,tag (f2h x) arity)]
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[_ (err tag p)])))]
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[(_ arity except extra)
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(lambda (tag)
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(lambda (p)
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(syntax-case p ()
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[(_ x) #`(proc> #,tag (f2h x) arity)]
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extra
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[_ (err tag p)])))]))
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(define (err spec p . xtras)
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(raise-syntax-error (cadr spec)
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(if (null? xtras)
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"illegal specification"
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(string-append "illegal specification: " (car xtras)))
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p))
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48
collects/2htdp/private/clauses-spec-aux.rkt
Normal file
48
collects/2htdp/private/clauses-spec-aux.rkt
Normal file
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@ -0,0 +1,48 @@
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#lang racket
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;; ---------------------------------------------------------------------------------------------------
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;; provides constants and functions for specifying the shape of clauses in big-bang and universe
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(provide nat> nat? proc> bool> num> ip> string> symbol> any> K False True)
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(require htdp/error "check-aux.rkt")
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(define (K w . r) w)
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(define (False w) #f)
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(define (True w) #t)
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;; Symbol X -> X
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(define (bool> tag x)
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(check-arg tag (boolean? x) "boolean" "first" x)
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x)
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;; Symbol X -> X
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(define (string> tag x)
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(check-arg tag (string? x) "string" "first" x)
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x)
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(define ip> string>)
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;; Symbol X -> X
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(define (symbol> tag x)
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(check-arg tag (symbol? x) "symbol" "second" x)
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x)
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;; Symbol X Nat -> X
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(define (proc> tag f ar)
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(check-proc tag f ar "first" (if (> ar 1) (format "~a arguments" ar) "one argument"))
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f)
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;; Symbol X (Number -> Boolean) String String -> X
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(define (num> tag x pred? spec which)
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(check-arg tag (and (number? x) (pred? x)) spec which x)
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x)
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;; Symbol X String -> X
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(define (nat> tag x spec)
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(check-arg tag (nat? x) spec "natural number" x)
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x)
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;; Symbol X String -> X
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(define (any> tag x)
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x)
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47
collects/2htdp/private/define-keywords.rkt
Normal file
47
collects/2htdp/private/define-keywords.rkt
Normal file
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@ -0,0 +1,47 @@
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#lang racket
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;; ---------------------------------------------------------------------------------------------------
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;; provide a mechanism for defining the shape of big-bang and universe clauses
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;; to specify individual clauses see syn-aux.rkt
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(provide define-keywords DEFAULT)
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(require (for-syntax syntax/parse))
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(define-syntax (DEFAULT stx)
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(raise-syntax-error 'DEFAULT "used out of context" stx))
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(define-syntax (define-keywords stx)
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(syntax-parse stx #:literals (DEFAULT)
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[(_ the-list super-list define-create
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(kw:identifier
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(~optional kw-alt:identifier #:defaults ((kw-alt #'kw)))
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(~optional (~seq DEFAULT default:expr))
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coerce:expr) ...)
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(let* ([defs (attribute default)])
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#`(begin
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;; define and create list of keywords and associated values
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(define-for-syntax the-list
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(list* (list #'kw #'kw-alt (coerce ''kw) default) ... super-list))
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;; define and provide keywords
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(provide (rename-out (kw kw-alt) ...))
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(provide kw ...)
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(define-syntaxes (kw ...)
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(values (lambda (x) (raise-syntax-error 'kw "used out of context" x)) ...))
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;; a macro for creating functions that instantiate the proper object
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;; (define-create para ...) :: additional parameters for the new func
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(define-syntax (define-create stx)
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(syntax-case stx ()
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[(_ para (... ...))
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(let*-values
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([(kwds defs)
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(values (map car the-list) '())]
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;; the defaults list defs is no longer needed
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[(args) (lambda (para*) (append para* (foldr cons '() kwds)))]
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[(body) (lambda (para*) (map (lambda (x) `(,x ,x)) (append para* kwds)))])
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(let ([para* (syntax->list #'(para (... ...)))])
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#`(lambda (%)
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(lambda #,(args para*)
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(lambda ()
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(new % #,@(body para*)))))))]))))]))
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@ -1,17 +1,17 @@
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Files for constructing universe.ss:
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Files for constructing universe.rkt:
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world.ss the old world
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world% = (clock-mixin ...) -- the basic world
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aworld% = (class world% ...) -- the world with recording
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world.rkt the old world
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world% = (clock-mixin ...) -- the basic world
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aworld% = (class world% ...) -- the world with recording
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universe.ss the universe server
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universe% = (clock-mixin ...) -- the basic universe
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universe.rkt the universe server
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universe% = (clock-mixin ...) -- the basic universe
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timer.ss the clock-mixin
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timer.rkt the clock-mixin
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check-aux.ss common primitives
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image.ss the world image functions
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syn-aux.ss syntactic auxiliaries
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syn-aux-aux.ss auxiliaries to the syntactic auxiliaries
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check-aux.rkt common primitives
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image.rkt the world image functions
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clauses-spec-and-process.rkt syntactic auxiliaries
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clauses-spec-aux.rkt auxiliaries to the syntactic auxiliaries
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@ -1,64 +0,0 @@
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#lang racket
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(require htdp/error "check-aux.rkt")
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;
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;
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;
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; ;;; ;;;
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; ; ; ; ;
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; ; ; ;
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; ; ; ; ;;;; ; ; ; ; ; ;
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; ;;; ; ; ; ; ;;;;; ; ; ; ;
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; ; ; ; ; ; ; ; ; ; ;
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; ; ; ; ; ; ; ; ; ; ;
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; ; ; ; ; ; ; ; ; ; ;; ; ;
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; ;;; ;;;; ; ; ; ; ;; ; ; ;
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; ;
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; ; ;
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; ;;;
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(provide nat> nat? proc> bool> num> ip> string> symbol> any>)
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;; Any -> Boolean
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(define (nat? x)
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(and (number? x) (integer? x) (>= x 0)))
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;; Symbol X -> X
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(define (bool> tag x)
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(check-arg tag (boolean? x) "boolean" "first" x)
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x)
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;; Symbol X -> X
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(define (string> tag x)
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(check-arg tag (string? x) "string" "first" x)
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x)
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(define ip> string>)
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;; Symbol X -> X
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(define (symbol> tag x)
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(check-arg tag (symbol? x) "symbol" "second" x)
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x)
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;; Symbol X Nat -> X
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(define (proc> tag f ar)
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(check-proc tag f ar "first"
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(if (> ar 1)
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(format "~a arguments" ar)
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"one argument"))
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f)
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;; Symbol X (Number -> Boolean) String String -> X
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(define (num> tag x pred? spec which)
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(check-arg tag (and (number? x) (pred? x)) spec which x)
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x)
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;; Symbol X String -> X
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(define (nat> tag x spec)
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(check-arg tag (nat? x) spec "natural number" x)
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x)
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;; Symbol X String -> X
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(define (any> tag x)
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x)
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@ -1,15 +1,34 @@
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#lang racket/gui
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(require (for-syntax "syn-aux.rkt")
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"checked-cell.rkt"
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;; ---------------------------------------------------------------------------------------------------
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;; provides the universe functionality (distributed worlds)
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(require "checked-cell.rkt"
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"check-aux.rkt"
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"timer.rkt"
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"timer.rkt"
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"last.rkt"
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"clauses-spec-aux.rkt"
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htdp/error
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(only-in mzlib/etc evcase)
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string-constants)
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(provide universe%)
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(provide
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universe%
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;; --- sample worlds and function on worlds ---
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iworld? ;; Any -> Boolean
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iworld=? ;; World World -> Boolean
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iworld-name ;; World -> Symbol
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iworld1 ;; sample worlds
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iworld2
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iworld3
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;; --- sending 'mail' to worlds ---
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;; type Bundle = (make-bundle [Listof World] Universe [Listof Mail])
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;; type Mail = (make-mail World S-expression)
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make-bundle ;; [Listof World] Universe [Listof Mail] -> Bundle
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bundle? ;; is this a bundle?
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make-mail ;; World S-expression -> Mail
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mail? ;; is this a real mail?
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)
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;
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;
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|
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@ -205,14 +224,6 @@
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;
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;
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(provide
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iworld? ;; Any -> Boolean
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iworld=? ;; World World -> Boolean
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iworld-name ;; World -> Symbol
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iworld1 ;; sample worlds
|
||||
iworld2
|
||||
iworld3)
|
||||
|
||||
;; --- the server representation of a world ---
|
||||
(define-struct iworld (in out name info) #; #:transparent)
|
||||
;; World = (make-iworld IPort OPort Symbol [Listof Sexp])
|
||||
|
|
@ -332,15 +343,6 @@
|
|||
;
|
||||
;
|
||||
|
||||
(provide
|
||||
;; type Bundle = (make-bundle [Listof World] Universe [Listof Mail])
|
||||
;; type Mail = (make-mail World S-expression)
|
||||
make-bundle ;; [Listof World] Universe [Listof Mail] -> Bundle
|
||||
bundle? ;; is this a bundle?
|
||||
make-mail ;; World S-expression -> Mail
|
||||
mail? ;; is this a real mail?
|
||||
)
|
||||
|
||||
(define-struct bundle (state mails bad) #:transparent)
|
||||
|
||||
(set! make-bundle
|
||||
|
|
|
|||
|
|
@ -26,7 +26,11 @@
|
|||
(on-draw draw-number)
|
||||
(record? dir)))
|
||||
(sleep 1)
|
||||
(unless (image=? (bitmap "images0/i1.png") (draw-stop 5))
|
||||
|
||||
(define i (bitmap "images0/i1.png"))
|
||||
(define j (draw-stop 5))
|
||||
|
||||
(unless (image=? (crop 0 0 100 100 i) j)
|
||||
(fprintf (current-error-port)
|
||||
"this test needs to be revised -- the way 'world' writes images adds an extra pixel -- think! \n"))
|
||||
|
||||
|
|
|
|||
|
|
@ -1,10 +1,11 @@
|
|||
#lang racket/gui
|
||||
|
||||
;; DONT USE to-draw IN THIS FILE
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; the universe library provides the functionality to create interactive and distributed FPs in HtDP
|
||||
|
||||
;; DONT USE ___to-draw___ IN THIS FILE
|
||||
|
||||
#| TODO:
|
||||
-- check that on-release is only defined if on-key is defined
|
||||
|
||||
-- run callbacks in user eventspace
|
||||
-- make timer fire just once; restart after on-tick callback finishes
|
||||
-- take out counting; replace by 0.25 delay
|
||||
|
|
@ -12,16 +13,18 @@
|
|||
-- make window resizable :: why
|
||||
|#
|
||||
|
||||
(require (for-syntax "private/syn-aux.rkt"
|
||||
(require (for-syntax "private/clauses-spec-and-process.rkt"
|
||||
stepper/private/shared)
|
||||
"private/syn-aux-aux.rkt"
|
||||
"private/syn-aux.rkt"
|
||||
"private/check-aux.rkt"
|
||||
"private/universe-image.rkt"
|
||||
"private/define-keywords.rkt"
|
||||
"private/clauses-spec-aux.rkt"
|
||||
;; ---
|
||||
"private/world.rkt"
|
||||
"private/universe.rkt"
|
||||
"private/launch-many-worlds.rkt"
|
||||
"private/stop.rkt"
|
||||
"private/universe-image.rkt"
|
||||
;;
|
||||
(only-in "private/launch-many-worlds.rkt" launch-many-worlds)
|
||||
(only-in "private/stop.rkt" make-stop-the-world)
|
||||
(only-in "private/check-aux.rkt" sexp?)
|
||||
htdp/error
|
||||
(rename-in lang/prim (first-order->higher-order f2h)))
|
||||
|
||||
|
|
@ -314,8 +317,7 @@
|
|||
[(universe) (raise-syntax-error #f "not a legal universe description" stx)]
|
||||
[(universe u) (raise-syntax-error #f "not a legal universe description" stx)]
|
||||
[(universe u bind ...)
|
||||
(let* ([args
|
||||
(->args 'universe stx #'u #'(bind ...) UniSpec void "universe")]
|
||||
(let* ([args (->args 'universe stx #'u #'(bind ...) UniSpec void "universe")]
|
||||
[dom (syntax->list #'(bind ...))])
|
||||
(cond
|
||||
[(not (contains-clause? #'on-new dom))
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user