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264 Commits
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Sam Caldwell | fc6e012d1c | |
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Sam Caldwell | 690f9e65a8 | |
Sam Caldwell | 4f6089c805 | |
Sam Caldwell | aa74ffa14d | |
Sam Caldwell | 09ce074125 | |
Sam Caldwell | 3f6a5573e4 | |
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Sam Caldwell | 8b67d0ba03 | |
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Sam Caldwell | c54b088a4d | |
Sam Caldwell | d5894e400b | |
Sam Caldwell | b023753091 | |
Sam Caldwell | 04530893f4 | |
Sam Caldwell | bd267cfaa9 | |
Sam Caldwell | d79378b4a3 | |
Sam Caldwell | 7a8628880a | |
Sam Caldwell | 145bc84e33 | |
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Michael Ballantyne | c988c4f462 | |
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Michael Ballantyne | 50d2d1a6fa | |
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Stephen Chang | 056d467402 | |
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Tony Garnock-Jones | 38f6351d43 | |
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Tony Garnock-Jones | d1fbe26bc1 |
|
@ -1,30 +1,38 @@
|
|||
#lang setup/infotab
|
||||
(define collection 'multi)
|
||||
(define deps '("rfc6455"
|
||||
"turnstile-lib"
|
||||
"turnstile-example"
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||||
"macrotypes-lib"
|
||||
"rackunit-macrotypes-lib"
|
||||
(define deps '(
|
||||
"base"
|
||||
"data-lib"
|
||||
"htdp-lib"
|
||||
"net-lib"
|
||||
"web-server-lib"
|
||||
"profile-lib"
|
||||
"rackunit-lib"
|
||||
"htdp-lib"
|
||||
"sha"
|
||||
"automata"
|
||||
"auxiliary-macro-context"
|
||||
"data-enumerate-lib"
|
||||
"datalog"
|
||||
"db-lib"
|
||||
"draw-lib"
|
||||
"gui-lib"
|
||||
"images-lib"
|
||||
"macrotypes-lib"
|
||||
"pict-lib"
|
||||
"rackunit-macrotypes-lib"
|
||||
"rfc6455"
|
||||
"sandbox-lib"
|
||||
"sgl"
|
||||
"struct-defaults"
|
||||
"auxiliary-macro-context"
|
||||
"sandbox-lib"
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||||
"images-lib"
|
||||
"automata"
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||||
"sha"))
|
||||
(define build-deps '("racket-doc"
|
||||
"turnstile-example"
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||||
"turnstile-lib"
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||||
"web-server-lib"
|
||||
))
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||||
(define build-deps '(
|
||||
"draw-doc"
|
||||
"gui-doc"
|
||||
"htdp-doc"
|
||||
"pict-doc"
|
||||
"racket-doc"
|
||||
"scribble-lib"
|
||||
"sha"
|
||||
"draw-doc" "gui-doc" "htdp-doc" "pict-doc"))
|
||||
))
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||||
|
|
|
@ -0,0 +1,44 @@
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|||
#lang syndicate
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||||
|
||||
;; actor adapter for canvas-double-click% and cells-canvas%
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(require 7GUI/canvas-double-click)
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(require 7GUI/task-7-view)
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(require (only-in "../../widgets.rkt" qc))
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|
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(provide spawn-cells-canvas
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(struct-out single-click)
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(struct-out double-click)
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(struct-out update-grid))
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(require racket/gui/base
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(except-in racket/class field))
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(message-struct single-click (x y))
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(message-struct double-click (x y))
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(message-struct update-grid (cells))
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;; ---------------------------------------------------------------------------------------------------
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(define cells-canvas%
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(class canvas-double-click%
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(define/augment-final (on-click x y) (send-ground-message (single-click x y)))
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(define/augment-final (on-double-click x y) (send-ground-message (double-click x y)))
|
||||
(define *content #f)
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(define/public (update-grid cells)
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(set! *content cells)
|
||||
(qc (define dc (send this get-dc))
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(paint-grid dc *content)))
|
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(super-new [paint-callback (lambda (_self dc) (when *content (paint-grid dc *content)))])))
|
||||
|
||||
(define (spawn-cells-canvas parent width height)
|
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(define parent-component (seal-contents parent))
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(define canvas (new cells-canvas% [parent parent-component] [style '(hscroll vscroll)]))
|
||||
(qc (send canvas init-auto-scrollbars width height 0. 0.)
|
||||
(send canvas show-scrollbars #t #t))
|
||||
|
||||
(spawn
|
||||
(on (message (update-grid $cells))
|
||||
(qc (send canvas update-grid cells)))
|
||||
(on (message (inbound (single-click $x $y)))
|
||||
(send! (single-click x y)))
|
||||
(on (message (inbound (double-click $x $y)))
|
||||
(send! (double-click x y)))))
|
|
@ -0,0 +1,22 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
(require (only-in racket/format ~a))
|
||||
|
||||
;; a mouse-click counter
|
||||
|
||||
(define frame (spawn-frame #:label "Counter"))
|
||||
(define pane (spawn-horizontal-pane #:parent frame))
|
||||
(define view (spawn-text-field #:parent pane #:label "" #:init-value "0" #:enabled #f #:min-width 100))
|
||||
(define _but (spawn-button #:parent pane #:label "Count"))
|
||||
|
||||
(spawn
|
||||
(field [counter 0])
|
||||
(on (message (button-press _but))
|
||||
(counter (add1 (counter)))
|
||||
(send! (set-text-field view (~a (counter)))))
|
||||
(on-start
|
||||
(send! (show frame #t))))
|
||||
|
||||
(module+ main
|
||||
(void))
|
|
@ -0,0 +1,59 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
(require (only-in racket/format ~a ~r))
|
||||
|
||||
;; a bi-directional temperature converter (Fahrenheit vs Celsius)
|
||||
|
||||
(define ((callback setter) field val)
|
||||
(define-values (field:num last) (string->number* val))
|
||||
(cond
|
||||
[(and field:num (rational? field:num))
|
||||
(define inexact-n (* #i1.0 field:num))
|
||||
(setter inexact-n)
|
||||
(render field inexact-n last)]
|
||||
[else (send! (set-text-field-background field "red"))]))
|
||||
|
||||
(define (string->number* str)
|
||||
(define n (string->number str))
|
||||
(values n (and n (string-ref str (- (string-length str) 1)))))
|
||||
|
||||
(define (flow *from --> *to to-field)
|
||||
(λ (x)
|
||||
(*from x)
|
||||
(*to (--> x))
|
||||
(render to-field (*to) "")))
|
||||
|
||||
(define (render to-field *to last)
|
||||
(send! (set-text-field-background to-field "white"))
|
||||
(send! (set-text-field to-field (~a (~r *to #:precision 4) (if (eq? #\. last) "." "")))))
|
||||
|
||||
(define frame (spawn-frame #:label "temperature converter"))
|
||||
(define pane (spawn-horizontal-pane #:parent frame))
|
||||
|
||||
(define (make-field v0 lbl)
|
||||
(spawn-text-field #:parent pane
|
||||
#:min-width 199
|
||||
#:label lbl
|
||||
#:init-value v0))
|
||||
|
||||
(define C0 0)
|
||||
(define F0 32)
|
||||
|
||||
(define C-field (make-field (~a C0) "celsius:"))
|
||||
(define F-field (make-field (~a F0) " = fahrenheit:"))
|
||||
|
||||
(spawn
|
||||
|
||||
(field [*C C0]
|
||||
[*F F0])
|
||||
|
||||
(define celsius->fahrenheit (callback (flow *C (λ (c) (+ (* c 9/5) 32)) *F F-field)))
|
||||
(define fahrenheit->celsius (callback (flow *F (λ (f) (* (- f 32) 5/9)) *C C-field)))
|
||||
|
||||
(on (message (text-field-update C-field $val))
|
||||
(celsius->fahrenheit C-field val))
|
||||
(on (message (text-field-update F-field $val))
|
||||
(fahrenheit->celsius F-field val))
|
||||
(on-start
|
||||
(send! (show frame #t))))
|
|
@ -0,0 +1,67 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
|
||||
;; a flight booker that allows a choice between one-way and return bookings
|
||||
;; and, depending on the choice, a start date or a start date and an end date.
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(require gregor)
|
||||
|
||||
;; gregor should not raise an exception when parsing fails, but return #f
|
||||
(define (to-date d) (with-handlers ([exn? (λ (_) #f)]) (parse-date d "d.M.y")))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define DATE0 "27.03.2014")
|
||||
(define ONE "one-way flight")
|
||||
(define RETURN "return flight")
|
||||
(define CHOICES `(,ONE ,RETURN))
|
||||
(define RED "red")
|
||||
(define WHITE "white")
|
||||
|
||||
(define (make-field enabled)
|
||||
(spawn-text-field #:parent frame
|
||||
#:label ""
|
||||
#:init-value DATE0
|
||||
#:enabled enabled))
|
||||
|
||||
(define frame (spawn-frame #:label "flight booker"))
|
||||
(define choice (spawn-choice #:label "" #:parent frame #:choices CHOICES))
|
||||
(define start-d (make-field #t))
|
||||
(define return-d (make-field #f))
|
||||
(define book (spawn-button #:label "Book" #:parent frame))
|
||||
|
||||
(spawn
|
||||
(field [*kind-flight (list-ref CHOICES 0)] ;; one of the CHOICES
|
||||
[*start-date (to-date DATE0)] ;; date
|
||||
[*return-date (to-date DATE0)]) ;; date
|
||||
|
||||
(define (field-cb self val date-setter!)
|
||||
(define date (to-date val))
|
||||
(cond
|
||||
[date (send! (set-text-field-background self WHITE)) (date-setter! date) (enable-book)]
|
||||
[else (send! (set-text-field-background self RED)) (enable-book #f #f)]))
|
||||
|
||||
(define (enable-book [start-date (*start-date)] [return-date (*return-date)])
|
||||
(send! (enable book #f))
|
||||
(when (and start-date (date<=? (today) start-date)
|
||||
(or (and (string=? ONE (*kind-flight)))
|
||||
(and return-date (date<=? start-date return-date))))
|
||||
(send! (enable book #t))))
|
||||
|
||||
(define (enable-return-book selection)
|
||||
(*kind-flight selection)
|
||||
(send! (enable return-d (string=? RETURN (*kind-flight))))
|
||||
(enable-book))
|
||||
|
||||
(on (message (text-field-update start-d $val))
|
||||
(field-cb start-d val *start-date))
|
||||
(on (message (text-field-update return-d $val))
|
||||
(field-cb return-d val *return-date))
|
||||
(on (message (choice-selection choice $sel))
|
||||
(enable-return-book sel))
|
||||
(on (message (button-press book))
|
||||
(displayln "confirmed"))
|
||||
|
||||
(on-start (send! (show frame #t))
|
||||
(enable-return-book (*kind-flight))))
|
|
@ -0,0 +1,58 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
(require/activate syndicate/drivers/timestate)
|
||||
|
||||
;; notes on MF impl:
|
||||
;; - reset button doesn't do anything if duration is at 0
|
||||
;; - duration is meant to update as slider is moved, not just when released
|
||||
|
||||
;; a timer that permits the continuous setting of a new interval, plusanything if duration is at 0
|
||||
;; - duration is meant to update as slider is moved, not just when released
|
||||
;; a gauge and a text field that display the fraction of the elapsed time
|
||||
;; a reset button that sends the elapsed time back to 0
|
||||
|
||||
(define INTERVAL 100)
|
||||
|
||||
(define (next-time) (+ (current-milliseconds) INTERVAL))
|
||||
|
||||
(define frame (spawn-frame #:label "timer"))
|
||||
(define elapsed (spawn-gauge #:label "elapsed" #:parent frame #:enabled #f #:range 100))
|
||||
(define text (spawn-text-field #:parent frame #:init-value "0" #:label ""))
|
||||
(define slider (spawn-slider #:label "duration" #:parent frame #:min-value 0 #:max-value 100))
|
||||
(define button (spawn-button #:label "reset" #:parent frame))
|
||||
|
||||
(spawn
|
||||
(field [*elapsed 0] ;; INTERVAL/1000 ms accumulated elapsed time
|
||||
[*duration 0] ;; INTERVAL/1000 ms set duration interval
|
||||
[t (next-time)])
|
||||
|
||||
(define (timer-cb)
|
||||
(unless (>= (*elapsed) (*duration))
|
||||
(*elapsed (+ (*elapsed) 1))
|
||||
(t (next-time))
|
||||
(elapsed-cb)))
|
||||
|
||||
(define (elapsed-cb)
|
||||
(send! (set-text-field text (format "elapsed ~a" (*elapsed))))
|
||||
(unless (zero? (*duration))
|
||||
(define r (quotient (* 100 (*elapsed)) (*duration)))
|
||||
(send! (set-gauge-value elapsed r))))
|
||||
|
||||
(define (reset-cb)
|
||||
(*elapsed 0)
|
||||
(timer-cb))
|
||||
|
||||
(define (duration-cb new-duration)
|
||||
(unless (= new-duration (*duration))
|
||||
(*duration new-duration)
|
||||
(timer-cb)))
|
||||
|
||||
(on (asserted (later-than (t)))
|
||||
(timer-cb))
|
||||
(on (message (button-press button))
|
||||
(reset-cb))
|
||||
(on (message (slider-update slider $val))
|
||||
(duration-cb val))
|
||||
(on-start (elapsed-cb)
|
||||
(send! (show frame #t))))
|
|
@ -0,0 +1,71 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
(require (only-in racket/string string-prefix?))
|
||||
(require (only-in racket/function curry))
|
||||
(require (only-in racket/list first rest))
|
||||
|
||||
;; a create-read-update-deleted MVC implementation
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define frame (spawn-frame #:label "CRUD"))
|
||||
(define hpane1 (spawn-horizontal-pane #:parent frame #:border 10 #:alignment '(left bottom)))
|
||||
(define vpane1 (spawn-vertical-pane #:parent hpane1))
|
||||
(define filter-tf (spawn-text-field #:parent vpane1 #:label "Filter prefix: " #:init-value ""))
|
||||
(define lbox (spawn-list-box #:parent vpane1 #:label #f #:choices '() #:min-width 100 #:min-height 100))
|
||||
(define vpane2 (spawn-vertical-pane #:parent hpane1 #:alignment '(right center)))
|
||||
(define name (spawn-text-field #:parent vpane2 #:label "Name: " #:init-value "" #:min-width 200))
|
||||
(define surname (spawn-text-field #:parent vpane2 #:label "Surname: " #:init-value "" #:min-width 200))
|
||||
(define hpane2 (spawn-horizontal-pane #:parent frame))
|
||||
(define create-but (spawn-button #:label "Create" #:parent hpane2))
|
||||
(define update-but (spawn-button #:label "Update" #:parent hpane2))
|
||||
(define delete-but (spawn-button #:label "Delete" #:parent hpane2))
|
||||
|
||||
(spawn
|
||||
(field [*data '("Emil, Hans" "Mustermann, Max" "Tisch, Roman")]
|
||||
[*selector ""]
|
||||
[*selected (*data)]) ;; selected = (filter select data)
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define (selector! nu) (*selector nu) (data->selected!))
|
||||
(define (select s) (string-prefix? s (*selector)))
|
||||
(define (data->selected!) (*selected (if (string=? "" (*selector)) (*data) (filter select (*data)))))
|
||||
|
||||
(define-syntax-rule (def-! (name x ...) exp) (define (name x ...) (*data exp) (data->selected!)))
|
||||
(def-! (create-entry new-entry) (append (*data) (list new-entry)))
|
||||
(def-! (update-entry new-entry i) (operate-on i (curry cons new-entry) (*data) select (*selected)))
|
||||
(def-! (delete-from i) (operate-on i values))
|
||||
|
||||
#; {N [[Listof X] -> [Listof X]] [Listof X] [X -> Boolean] [Listof X] -> [Listof X]}
|
||||
;; traverse list to the i-th position of selected in data, then apply operator to rest (efficiency)
|
||||
;; ASSUME selected = (filter selector data)
|
||||
;; ASSUME i <= (length selected)
|
||||
(define (operate-on i operator [data (*data)] [select select] [selected (*selected)])
|
||||
(let sync ((i i) (data data) (selected selected))
|
||||
(if (select (first data))
|
||||
(if (zero? i)
|
||||
(operator (rest data))
|
||||
(cons (first data) (sync (sub1 i) (rest data) (rest selected))))
|
||||
(cons (first data) (sync i (rest data) selected)))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define-syntax-rule (def-cb (name x) exp ...) (define (name x) exp ... (send! (set-list-box-choices lbox (*selected)))))
|
||||
(def-cb (prefix-cb prefix) (selector! prefix))
|
||||
(def-cb (Create-cb _b) (create-entry (retrieve-name)))
|
||||
(def-cb (Update-cb _b) (common-cb (curry update-entry (retrieve-name))))
|
||||
(def-cb (Delete-cb _b) (common-cb delete-from))
|
||||
|
||||
(on (message (text-field-update filter-tf $prefix)) (prefix-cb prefix))
|
||||
(on (message (button-press create-but)) (Create-cb create-but))
|
||||
(on (message (button-press update-but)) (Update-cb update-but))
|
||||
(on (message (button-press delete-but)) (Delete-cb delete-but))
|
||||
|
||||
(define/query-value current-selection #f (list-box@ lbox $selection) selection)
|
||||
(define/query-value *surname "" (text-field@ surname $val) val)
|
||||
(define/query-value *name "" (text-field@ name $val) val)
|
||||
|
||||
(local-require 7GUI/should-be-racket)
|
||||
(define (common-cb f) (when* (current-selection) => f))
|
||||
(define (retrieve-name) (string-append (*surname) ", " (*name)))
|
||||
|
||||
(on-start (prefix-cb "")
|
||||
(send! (show frame #t))))
|
|
@ -0,0 +1,206 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
(require racket/list
|
||||
racket/gui/base
|
||||
(except-in racket/class field))
|
||||
|
||||
;; a circle drawer with undo/redo facilities (unclear spec for resizing)
|
||||
|
||||
(message-struct circle-canvas-event (type x y))
|
||||
(message-struct resize (circ d))
|
||||
(message-struct draw-circles (closest others))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define Default-Diameter 20)
|
||||
|
||||
(struct circle (x y d action) #:transparent)
|
||||
|
||||
(define (draw-1-circle dc brush c)
|
||||
(match-define (circle x y d _a) c)
|
||||
(send dc set-brush brush)
|
||||
(define r (/ d 2))
|
||||
(send dc draw-ellipse (- x r) (- y r) d d))
|
||||
|
||||
|
||||
;; N N (Circle -> Real]
|
||||
(define ((distance xm ym) c)
|
||||
(match-define (circle xc yc _d _a) c)
|
||||
(sqrt (+ (expt (- xc xm) 2) (expt (- yc ym) 2))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define solid-gray (new brush% [color "gray"]))
|
||||
(define white-brush (new brush% [color "white"]))
|
||||
|
||||
(define circle-canvas%
|
||||
(class canvas%
|
||||
(inherit on-paint get-dc)
|
||||
|
||||
(define/override (on-event evt)
|
||||
(define type (send evt get-event-type))
|
||||
(define x (send evt get-x))
|
||||
(define y (send evt get-y))
|
||||
(send-ground-message (circle-canvas-event type x y)))
|
||||
|
||||
(define (paint-callback _self _evt)
|
||||
(draw-circles *last-closest *last-others))
|
||||
|
||||
(define *last-closest #f)
|
||||
(define *last-others #f)
|
||||
|
||||
(define/public (draw-circles closest (others-without-closest #f))
|
||||
(set! *last-closest closest)
|
||||
(set! *last-others others-without-closest)
|
||||
(define dc (get-dc))
|
||||
(send dc clear)
|
||||
(when others-without-closest
|
||||
(for ((c others-without-closest)) (draw-1-circle dc white-brush c)))
|
||||
(when closest (draw-1-circle dc solid-gray closest)))
|
||||
|
||||
(super-new [paint-callback paint-callback])))
|
||||
|
||||
(define (spawn-circle-canvas parent frame undo-but redo-but)
|
||||
(define cc (new circle-canvas% [parent (seal-contents parent)][style '(border)]))
|
||||
|
||||
(spawn
|
||||
(field [*circles '()]
|
||||
[*history '()]
|
||||
[*x 0]
|
||||
[*y 0]
|
||||
[*in-adjuster #f])
|
||||
|
||||
(define (add-circle! x y)
|
||||
(define added (circle x y Default-Diameter 'added))
|
||||
(*circles (cons added (*circles))))
|
||||
|
||||
(define (resize! old-closest new-d)
|
||||
(match-define (circle x y d a) old-closest)
|
||||
(define resized
|
||||
(match a
|
||||
['added (circle x y new-d `(resized (,d)))]
|
||||
[`(resized . ,old-sizes) (circle x y new-d `(resized ,(cons d old-sizes)))]))
|
||||
(*circles (cons resized (remq old-closest (*circles)))))
|
||||
|
||||
(define (undo)
|
||||
(when (cons? (*circles))
|
||||
(define fst (first (*circles)))
|
||||
(match fst
|
||||
[(circle x y d 'added) (*circles (rest (*circles)))]
|
||||
[(circle x y d `(resized (,r0 . ,sizes)))
|
||||
(*circles (cons (circle x y r0 `(resized (,d))) (rest (*circles))))])
|
||||
(*history (cons fst (*history)))))
|
||||
|
||||
(define (redo)
|
||||
(when (cons? (*history))
|
||||
(define fst (first (*history)))
|
||||
(if (eq? (circle-action fst) 'added)
|
||||
(begin (*circles (cons fst (*circles))) (*history (rest (*history))))
|
||||
(begin (*circles (cons fst (rest (*circles)))) (*history (rest (*history)))))))
|
||||
|
||||
(define (the-closest xm ym (circles (*circles)))
|
||||
(define cdistance (distance xm ym))
|
||||
(define-values (good-circles distance*)
|
||||
(for*/fold ([good-circles '()][distance* '()])
|
||||
((c circles) (d (in-value (cdistance c))) #:when (< d (/ (circle-d c) 2)))
|
||||
(values (cons c good-circles) (cons d distance*))))
|
||||
(and (cons? distance*) (first (argmin second (map list good-circles distance*)))))
|
||||
|
||||
(define (is-empty-area xm ym (circles (*circles)))
|
||||
(define dist (distance xm ym))
|
||||
(for/and ((c circles)) (> (dist c) (/ (+ (circle-d c) Default-Diameter) 2))))
|
||||
|
||||
(on (message 'unlock-canvas) (*in-adjuster #f))
|
||||
(on (message 'lock-canvas) (*in-adjuster #t))
|
||||
|
||||
;; no closest
|
||||
(define (draw!)
|
||||
(send cc draw-circles #f (*circles)))
|
||||
|
||||
(on (message (resize $old-closest $new-d))
|
||||
(resize! old-closest new-d)
|
||||
(draw!))
|
||||
|
||||
(on (message (draw-circles $close $others))
|
||||
(send cc draw-circles close others))
|
||||
|
||||
(on (message (button-press undo-but))
|
||||
(undo)
|
||||
(draw!))
|
||||
|
||||
(on (message (button-press redo-but))
|
||||
(redo)
|
||||
(draw!))
|
||||
|
||||
(on (message (inbound (circle-canvas-event $type $x $y)))
|
||||
(unless (*in-adjuster)
|
||||
(*x x)
|
||||
(*y y)
|
||||
(cond
|
||||
[(eq? 'leave type) (*x #f)]
|
||||
[(eq? 'enter type) (*x 0)]
|
||||
[(and (eq? 'left-down type) (is-empty-area (*x) (*y)))
|
||||
(add-circle! (*x) (*y))
|
||||
(draw!)]
|
||||
[(and (eq? 'right-down type) (the-closest (*x) (*y)))
|
||||
=> (λ (tc)
|
||||
(*in-adjuster #t)
|
||||
(popup-adjuster tc *circles frame)
|
||||
(send cc draw-circles tc (*circles)))])))
|
||||
))
|
||||
|
||||
(define (popup-adjuster closest-circle *circles frame)
|
||||
(define pid (gensym 'popup))
|
||||
(send! (popup-menu frame pid "adjuster" 100 100 (list "adjust radius")))
|
||||
(react (stop-when (message (no-popdown-selected pid)) (send! 'unlock-canvas))
|
||||
(stop-when (message (popdown-item-selected pid _)) (adjuster! closest-circle *circles))))
|
||||
|
||||
(define (adjuster! closest-circle *circles)
|
||||
(define d0 (circle-d closest-circle))
|
||||
(define frame (spawn-adjuster-dialog closest-circle (remq closest-circle (*circles))))
|
||||
(spawn-adjuster-slider #:parent frame #:init-value d0))
|
||||
|
||||
(define adjuster-dialog%
|
||||
(class frame% (init-field closest-circle)
|
||||
(match-define (circle x* y* _d _a) closest-circle)
|
||||
|
||||
(define/augment (on-close)
|
||||
(send-ground-message 'adjuster-closed))
|
||||
|
||||
(super-new [label (format "Adjust radius of circle at (~a,~a)" x* y*)])))
|
||||
|
||||
(define (spawn-adjuster-dialog closest-circle others)
|
||||
(match-define (circle x* y* old-d _a) closest-circle)
|
||||
(define dialog
|
||||
(parameterize ((current-eventspace (make-eventspace)))
|
||||
(new adjuster-dialog% [closest-circle closest-circle])))
|
||||
(send dialog show #t)
|
||||
(spawn
|
||||
;; well, there's only one slider
|
||||
(define/query-value *d old-d (slider@ _ $v) v)
|
||||
(on (message (slider-update _ $v))
|
||||
;; resize locally while adjusting
|
||||
(send! (draw-circles (circle x* y* (*d) '_dummy_) others)))
|
||||
(on (message (inbound 'adjuster-closed))
|
||||
;; resize globally
|
||||
(send! 'unlock-canvas)
|
||||
(send! (resize closest-circle (*d)))
|
||||
(stop-current-facet)))
|
||||
(seal dialog))
|
||||
|
||||
|
||||
(define (spawn-adjuster-slider #:parent parent
|
||||
#:init-value init-value)
|
||||
(spawn-slider #:parent parent #:label "" #:min-value 10 #:max-value 100 #:init-value init-value))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define frame (spawn-frame #:label "Circle Drawer" #:width 400))
|
||||
(define hpane1 (spawn-horizontal-pane #:parent frame #:min-height 20 #:alignment '(center center)))
|
||||
(define undo-but (spawn-button #:label "Undo" #:parent hpane1))
|
||||
(define redo-but (spawn-button #:label "Redo" #:parent hpane1))
|
||||
(define hpane2 (spawn-horizontal-panel #:parent frame #:min-height 400 #:alignment '(center center)))
|
||||
(define canvas (spawn-circle-canvas hpane2 frame undo-but redo-but))
|
||||
|
||||
(spawn
|
||||
(on (asserted (frame@ frame))
|
||||
(send! (show frame #t))
|
||||
(stop-current-facet)))
|
|
@ -0,0 +1,96 @@
|
|||
#lang syndicate
|
||||
|
||||
(require "../../widgets.rkt")
|
||||
(require "cells-canvas.rkt")
|
||||
(require racket/set racket/list racket/format)
|
||||
|
||||
;; a simple spreadsheet (will not check for circularities)
|
||||
|
||||
(require 7GUI/task-7-exp)
|
||||
(require 7GUI/task-7-view)
|
||||
|
||||
;; -----------------------------------------------------------------------------
|
||||
(struct formula (formula dependents) #:transparent)
|
||||
#; {Formula = [formula Exp* || Number || (Setof Ref*)]}
|
||||
|
||||
(define (spawn-control frame)
|
||||
(spawn
|
||||
(field [*content (make-immutable-hash)] ;; [Hashof Ref* Integer]
|
||||
[*formulas (make-immutable-hash)] ;; [Hashof Ref* Formula]
|
||||
)
|
||||
|
||||
|
||||
(define-syntax-rule (iff selector e default) (let ([v e]) (if v (selector v) default)))
|
||||
(define (get-exp ref*) (iff formula-formula (hash-ref (*formulas) ref* #f) 0))
|
||||
(define (get-dep ref*) (iff formula-dependents (hash-ref (*formulas) ref* #f) (set)))
|
||||
(define (get-content ref*) (hash-ref (*content) ref* 0))
|
||||
|
||||
(local-require 7GUI/should-be-racket)
|
||||
(define (set-content! ref* vc)
|
||||
(define current (get-content ref*))
|
||||
(*content (hash-set (*content) ref* vc))
|
||||
(when (and current (not (= current vc)))
|
||||
(when* (get-dep ref*) => propagate-to)))
|
||||
|
||||
(define (propagate-to dependents)
|
||||
(for ((d (in-set dependents)))
|
||||
(set-content! d (evaluate (get-exp d) (*content)))))
|
||||
|
||||
(define (set-formula! ref* exp*)
|
||||
(define new (formula exp* (or (get-dep ref*) (set))))
|
||||
(*formulas (hash-set (*formulas) ref* new))
|
||||
(register-with-dependents (depends-on exp*) ref*)
|
||||
(set-content! ref* (evaluate exp* (*content))))
|
||||
|
||||
(define (register-with-dependents dependents ref*)
|
||||
(for ((d (in-set dependents)))
|
||||
(*formulas (hash-set (*formulas) d (formula (get-exp d) (set-add (get-dep d) ref*))))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; cells and contents
|
||||
(define ((mk-edit title-fmt validator registration source frame) x y)
|
||||
(define cell (list (x->A x) (y->0 y)))
|
||||
(when (and (first cell) (second cell))
|
||||
(react
|
||||
(define value0 (~a (or (source cell) "")))
|
||||
;; maybe need to make use of queue-callback ?
|
||||
(define dialog (spawn-dialog #:parent #f
|
||||
#:style '(close-button)
|
||||
#:label (format title-fmt cell)))
|
||||
(define tf (spawn-text-field #:parent dialog
|
||||
#:label #f
|
||||
#:min-width 200
|
||||
#:min-height 80
|
||||
#:init-value value0))
|
||||
(on (message (text-field-enter tf $contents))
|
||||
(when* (validator contents)
|
||||
=> (lambda (valid)
|
||||
(stop-current-facet
|
||||
(send! (show dialog #f))
|
||||
(registration cell valid)
|
||||
(send! (update-grid (*content)))))))
|
||||
(on (asserted (dialog@ dialog))
|
||||
(send! (show dialog #t))))))
|
||||
|
||||
(define content-edit (mk-edit "content for cell ~a" valid-content set-content! get-content frame))
|
||||
|
||||
(define formula-fmt "a formula for cell ~a")
|
||||
(define formula-edit (mk-edit formula-fmt string->exp* set-formula! (compose exp*->string get-exp) frame))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(on (message (single-click $x $y))
|
||||
(content-edit x y))
|
||||
(on (message (double-click $x $y))
|
||||
(formula-edit x y))
|
||||
(on-start (send! (update-grid (*content))))
|
||||
))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
(define frame (spawn-frame #:label "Cells" #:width (/ WIDTH 2) #:height (/ HEIGHT 3)))
|
||||
(define canvas (spawn-cells-canvas frame WIDTH HEIGHT))
|
||||
(spawn-control frame)
|
||||
|
||||
(spawn
|
||||
(on (asserted (frame@ frame))
|
||||
(send! (show frame #t))
|
||||
(stop-current-facet)))
|
|
@ -0,0 +1,8 @@
|
|||
#lang setup/infotab
|
||||
|
||||
(define compile-omit-paths
|
||||
'("examples"))
|
||||
|
||||
(define test-omit-paths
|
||||
'(;; depends on Matthias's 7GUI project which is not on the package server
|
||||
"examples"))
|
|
@ -0,0 +1,387 @@
|
|||
#lang syndicate
|
||||
|
||||
(provide gui-eventspace
|
||||
gui-callback
|
||||
qc
|
||||
spawn-frame
|
||||
spawn-horizontal-pane
|
||||
spawn-horizontal-panel
|
||||
spawn-vertical-pane
|
||||
spawn-text-field
|
||||
spawn-button
|
||||
spawn-choice
|
||||
spawn-gauge
|
||||
spawn-slider
|
||||
spawn-list-box
|
||||
spawn-dialog
|
||||
(struct-out frame@)
|
||||
(struct-out show)
|
||||
(struct-out horizontal-pane@)
|
||||
(struct-out horizontal-panel@)
|
||||
(struct-out vertical-pane@)
|
||||
(struct-out text-field@)
|
||||
(struct-out set-text-field)
|
||||
(struct-out button@)
|
||||
(struct-out button-press)
|
||||
(struct-out set-text-field-background)
|
||||
(struct-out text-field-update)
|
||||
(struct-out text-field-enter)
|
||||
(struct-out choice@)
|
||||
(struct-out choice-selection)
|
||||
(struct-out set-selection)
|
||||
(struct-out enable)
|
||||
(struct-out gauge@)
|
||||
(struct-out set-gauge-value)
|
||||
(struct-out slider@)
|
||||
(struct-out slider-update)
|
||||
(struct-out list-box@)
|
||||
(struct-out list-box-selection)
|
||||
(struct-out set-list-box-choices)
|
||||
(struct-out popup-menu)
|
||||
(struct-out no-popdown-selected)
|
||||
(struct-out popdown-item-selected)
|
||||
(struct-out dialog@))
|
||||
|
||||
(require (only-in racket/class
|
||||
new
|
||||
send
|
||||
make-object))
|
||||
(require racket/gui/base)
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Eventspace Shennanigans
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define gui-eventspace (make-parameter (make-eventspace)))
|
||||
|
||||
(define (gui-callback thnk)
|
||||
(parameterize ([current-eventspace (gui-eventspace)])
|
||||
(queue-callback thnk)))
|
||||
|
||||
(define-syntax-rule (qc expr ...)
|
||||
(gui-callback (lambda () expr ...)))
|
||||
|
||||
|
||||
;; an ID is a (Sealof Any)
|
||||
;; an Alignment is a (List (U 'left 'center 'right) (U 'top 'center 'bottom))
|
||||
|
||||
(message-struct enable (id val))
|
||||
|
||||
(assertion-struct frame@ (id))
|
||||
(message-struct show (id value))
|
||||
(message-struct popup-menu (parent-id id title x y items))
|
||||
(message-struct no-popdown-selected (id))
|
||||
(message-struct popdown-item-selected (id item))
|
||||
|
||||
(assertion-struct horizontal-pane@ (id))
|
||||
(assertion-struct vertical-pane@ (id))
|
||||
(assertion-struct horizontal-panel@ (id))
|
||||
|
||||
(assertion-struct text-field@ (id value))
|
||||
(message-struct set-text-field (id value))
|
||||
(message-struct set-text-field-background (id color))
|
||||
(message-struct text-field-update (id value))
|
||||
(message-struct text-field-enter (id value))
|
||||
|
||||
(assertion-struct button@ (id))
|
||||
(message-struct button-press (id))
|
||||
|
||||
(assertion-struct choice@ (id selection))
|
||||
(message-struct choice-selection (id val))
|
||||
(message-struct set-selection (id idx))
|
||||
|
||||
(assertion-struct gauge@ (id))
|
||||
(message-struct set-gauge-value (id value))
|
||||
|
||||
(assertion-struct slider@ (id value))
|
||||
(message-struct slider-update (id value))
|
||||
|
||||
(assertion-struct list-box@ (id idx))
|
||||
(message-struct list-box-selection (id idx))
|
||||
(message-struct set-list-box-choices (id choices))
|
||||
|
||||
(assertion-struct dialog@ (id))
|
||||
|
||||
(define (enable/disable-handler self my-id)
|
||||
(on (message (enable my-id $val))
|
||||
(qc (send self enable val))))
|
||||
|
||||
;; String -> ID
|
||||
(define (spawn-frame #:label label
|
||||
#:width [width #f]
|
||||
#:height [height #f])
|
||||
(define frame
|
||||
(parameterize ((current-eventspace (gui-eventspace)))
|
||||
(new frame%
|
||||
[label label]
|
||||
[width width]
|
||||
[height height])))
|
||||
(define id (seal frame))
|
||||
|
||||
(define ((on-popdown! pid) self evt)
|
||||
(when (eq? (send evt get-event-type) 'menu-popdown-none)
|
||||
(send-ground-message (no-popdown-selected pid))))
|
||||
(define ((popdown-item! pid i) . _x)
|
||||
(send-ground-message (popdown-item-selected pid i)))
|
||||
|
||||
(spawn
|
||||
(assert (frame@ id))
|
||||
(on (message (show id $val))
|
||||
(qc (send frame show val)))
|
||||
(on (message (popup-menu id $pid $title $x $y $items))
|
||||
(define pm (new popup-menu% [title title] [popdown-callback (on-popdown! pid)]))
|
||||
(for ([i (in-list items)])
|
||||
(new menu-item% [parent pm] [label i] [callback (popdown-item! pid i)]))
|
||||
(qc (send frame popup-menu pm x y))
|
||||
(react (stop-when (message (inbound (no-popdown-selected pid))) (send! (no-popdown-selected pid)))
|
||||
(stop-when (message (inbound (popdown-item-selected pid $i))) (send! (popdown-item-selected pid i))))))
|
||||
id)
|
||||
|
||||
;; ID ... -> ID
|
||||
(define (spawn-horizontal-pane #:parent parent
|
||||
#:border [border 0]
|
||||
#:min-height [min-height #f]
|
||||
#:alignment [alignment '(left center)])
|
||||
(define parent-component (seal-contents parent))
|
||||
(define pane (new horizontal-pane%
|
||||
[parent parent-component]
|
||||
[border border]
|
||||
[min-height min-height]
|
||||
[alignment alignment]))
|
||||
(define id (seal pane))
|
||||
|
||||
(spawn
|
||||
(assert (horizontal-pane@ id)))
|
||||
|
||||
id)
|
||||
|
||||
;; ID ... -> ID
|
||||
(define (spawn-horizontal-panel #:parent parent
|
||||
#:border [border 0]
|
||||
#:min-height [min-height #f]
|
||||
#:alignment [alignment '(left center)])
|
||||
(define parent-component (seal-contents parent))
|
||||
(define panel (new horizontal-panel%
|
||||
[parent parent-component]
|
||||
[border border]
|
||||
[min-height min-height]
|
||||
[alignment alignment]))
|
||||
(define id (seal panel))
|
||||
|
||||
(spawn
|
||||
(assert (horizontal-panel@ id)))
|
||||
|
||||
id)
|
||||
|
||||
;; ID Alignment -> ID
|
||||
(define (spawn-vertical-pane #:parent parent
|
||||
#:alignment [alignment '(center top)])
|
||||
(define parent-component (seal-contents parent))
|
||||
(define pane (new vertical-pane%
|
||||
[parent parent-component]
|
||||
[alignment alignment]))
|
||||
(define id (seal pane))
|
||||
|
||||
(spawn
|
||||
(assert (vertical-pane@ id)))
|
||||
|
||||
id)
|
||||
|
||||
; ID String String Bool Nat -> ID
|
||||
(define (spawn-text-field #:parent parent
|
||||
#:label label
|
||||
#:init-value init
|
||||
#:enabled [enabled? #t]
|
||||
#:min-width [min-width #f]
|
||||
#:min-height [min-height #f])
|
||||
(define parent-component (seal-contents parent))
|
||||
|
||||
(define (inject-text-field-update! _ evt)
|
||||
(case (send evt get-event-type)
|
||||
[(text-field)
|
||||
(send-ground-message (text-field-update id (send tf get-value)))]
|
||||
[(text-field-enter)
|
||||
(send-ground-message (text-field-enter id (send tf get-value)))]))
|
||||
|
||||
(define tf (new text-field%
|
||||
[parent parent-component]
|
||||
[label label]
|
||||
[init-value init]
|
||||
[enabled enabled?]
|
||||
[min-width min-width]
|
||||
[min-height min-height]
|
||||
[callback inject-text-field-update!]))
|
||||
(define id (seal tf))
|
||||
|
||||
(spawn
|
||||
(field [val (send tf get-value)])
|
||||
(assert (text-field@ id (val)))
|
||||
(enable/disable-handler tf id)
|
||||
(on (message (set-text-field id $value))
|
||||
(qc (send tf set-value value))
|
||||
(val value))
|
||||
(on (message (set-text-field-background id $color))
|
||||
(define c (make-object color% color))
|
||||
(qc (send tf set-field-background c)))
|
||||
(on (message (inbound (text-field-update id $value)))
|
||||
(val value)
|
||||
(send! (text-field-update id value)))
|
||||
(on (message (inbound (text-field-enter id $value)))
|
||||
(val value)
|
||||
(send! (text-field-enter id value))))
|
||||
|
||||
id)
|
||||
|
||||
;; ID String -> ID
|
||||
(define (spawn-button #:parent parent
|
||||
#:label label)
|
||||
(define (inject-button-press! b e)
|
||||
(send-ground-message (button-press id)))
|
||||
(define parent-component (seal-contents parent))
|
||||
(define but (new button%
|
||||
[parent parent-component]
|
||||
[label label]
|
||||
[callback inject-button-press!]))
|
||||
(define id (seal but))
|
||||
|
||||
(spawn
|
||||
(assert (button@ id))
|
||||
(enable/disable-handler but id)
|
||||
;; NOTE - this assumes we are one level away from ground
|
||||
(on (message (inbound (button-press id)))
|
||||
(send! (button-press id))))
|
||||
|
||||
id)
|
||||
|
||||
;; ID String (Listof String) -> ID
|
||||
(define (spawn-choice #:parent parent
|
||||
#:label label
|
||||
#:choices choices)
|
||||
(define (inject-selection! c e)
|
||||
(send-ground-message (choice-selection id (send ch get-string-selection))))
|
||||
(define parent-component (seal-contents parent))
|
||||
(define ch (new choice%
|
||||
[parent parent-component]
|
||||
[label label]
|
||||
[choices choices]
|
||||
[callback inject-selection!]))
|
||||
(define id (seal ch))
|
||||
|
||||
(spawn
|
||||
(field [selection (send ch get-string-selection)])
|
||||
(assert (choice@ id (selection)))
|
||||
|
||||
(enable/disable-handler ch id)
|
||||
(on (message (inbound (choice-selection id $val)))
|
||||
(selection val)
|
||||
(send! (choice-selection id val)))
|
||||
(on (message (set-selection id $idx))
|
||||
(qc (send ch set-selection idx))
|
||||
(selection (send ch get-string-selection))))
|
||||
|
||||
id)
|
||||
|
||||
;; ID String Bool Nat -> ID
|
||||
(define (spawn-gauge #:parent parent
|
||||
#:label label
|
||||
#:enabled [enabled? #t]
|
||||
#:range [range 100])
|
||||
(define parent-component (seal-contents parent))
|
||||
(define g (new gauge%
|
||||
[parent parent-component]
|
||||
[label label]
|
||||
[enabled enabled?]
|
||||
[range range]))
|
||||
(define id (seal g))
|
||||
|
||||
(spawn
|
||||
(assert (gauge@ id))
|
||||
(on (message (set-gauge-value id $v))
|
||||
(qc (send g set-value v))))
|
||||
|
||||
id)
|
||||
|
||||
;; ID String Nat Nat -> ID
|
||||
(define (spawn-slider #:parent parent
|
||||
#:label label
|
||||
#:min-value min-value
|
||||
#:max-value max-value
|
||||
#:init-value [init-value min-value])
|
||||
(define (inject-slider-event! self evt)
|
||||
(send-ground-message (slider-update id (get))))
|
||||
|
||||
(define parent-component (seal-contents parent))
|
||||
(define s (new slider%
|
||||
[parent parent-component]
|
||||
[label label]
|
||||
[min-value min-value]
|
||||
[max-value max-value]
|
||||
[init-value init-value]
|
||||
[callback inject-slider-event!]))
|
||||
(define id (seal s))
|
||||
|
||||
(define (get) (send s get-value))
|
||||
|
||||
(spawn
|
||||
(field [current (get)])
|
||||
(assert (slider@ id (current)))
|
||||
(on (message (inbound (slider-update id $val)))
|
||||
(current val)
|
||||
(send! (slider-update id val))))
|
||||
|
||||
id)
|
||||
|
||||
;; ID (U String #f) (Listof String) ... -> ID
|
||||
(define (spawn-list-box #:parent parent
|
||||
#:label label
|
||||
#:choices choices
|
||||
#:min-width [min-width #f]
|
||||
#:min-height [min-height #f])
|
||||
(define (inject-list-box-selection! self evt)
|
||||
(send-ground-message (list-box-selection id (get))))
|
||||
(define parent-component (seal-contents parent))
|
||||
(define lb (new list-box%
|
||||
[parent parent-component]
|
||||
[label label]
|
||||
[choices choices]
|
||||
[min-width min-width]
|
||||
[min-height min-height]
|
||||
[callback inject-list-box-selection!]))
|
||||
(define id (seal lb))
|
||||
(define (get)
|
||||
(send lb get-selection))
|
||||
|
||||
(spawn
|
||||
(field [selection (get)])
|
||||
(assert (list-box@ id (selection)))
|
||||
(on (message (inbound (list-box-selection id $val)))
|
||||
(selection val)
|
||||
(send! (list-box-selection id val)))
|
||||
(on (message (set-list-box-choices id $val))
|
||||
(qc (send lb set val))
|
||||
(selection (get))))
|
||||
|
||||
id)
|
||||
|
||||
(define (spawn-dialog #:label label
|
||||
#:parent [parent #f]
|
||||
#:style [style null])
|
||||
(define parent-component (and parent (seal-contents parent)))
|
||||
(define evt-spc (if parent-component
|
||||
(send parent-component get-eventspace)
|
||||
(make-eventspace) #;(gui-eventspace)))
|
||||
(define d (parameterize ((current-eventspace evt-spc))
|
||||
(new dialog%
|
||||
[label label]
|
||||
[parent parent-component]
|
||||
[style style])))
|
||||
(define id (seal d))
|
||||
|
||||
(spawn
|
||||
(assert (dialog@ id))
|
||||
|
||||
(on (message (show id $show?))
|
||||
(qc (send d show show?))
|
||||
(unless show? (stop-current-facet))))
|
||||
|
||||
id)
|
|
@ -31,6 +31,9 @@
|
|||
retracted
|
||||
rising-edge
|
||||
(rename-out [core:message message])
|
||||
know
|
||||
forget
|
||||
realize
|
||||
|
||||
let-event
|
||||
|
||||
|
@ -58,6 +61,7 @@
|
|||
perform-actions!
|
||||
flush!
|
||||
quit-dataspace!
|
||||
realize!
|
||||
|
||||
syndicate-effects-available?
|
||||
|
||||
|
@ -80,6 +84,7 @@
|
|||
(require racket/set)
|
||||
(require racket/match)
|
||||
(require racket/contract)
|
||||
(require (only-in racket/list flatten))
|
||||
|
||||
(require (for-syntax racket/base))
|
||||
(require (for-syntax syntax/parse))
|
||||
|
@ -198,10 +203,15 @@
|
|||
endpoints ;; (Hash EID Endpoint)
|
||||
stop-scripts ;; (Listof Script) -- IN REVERSE ORDER
|
||||
children ;; (Setof FID)
|
||||
previous-knowledge ;; AssertionSet of internal knowledge
|
||||
knowledge ;; AssertionSet of internal knowledge
|
||||
) #:prefab)
|
||||
|
||||
(struct endpoint (id patch-fn handler-fn) #:prefab)
|
||||
|
||||
(struct internal-knowledge (v) #:prefab)
|
||||
(define internal-knowledge-parenthesis (open-parenthesis 1 struct:internal-knowledge))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Script priorities. These are used to ensure that the results of
|
||||
;; some *side effects* are visible to certain pieces of code.
|
||||
|
@ -249,6 +259,12 @@
|
|||
;; Storeof (Constreeof Action)
|
||||
(define current-pending-actions (make-store))
|
||||
|
||||
;; Storeof Patch
|
||||
(define current-pending-internal-patch (make-store))
|
||||
|
||||
;; Storeof (Constreeof Action)
|
||||
(define current-pending-internal-events (make-store))
|
||||
|
||||
;; Storeof (Vector (Queue Script) ...)
|
||||
;; Mutates the vector!
|
||||
(define current-pending-scripts (make-store))
|
||||
|
@ -393,6 +409,7 @@
|
|||
[(_ [id:id init maybe-contract ...] ...)
|
||||
(quasisyntax/loc stx
|
||||
(begin
|
||||
(ensure-in-endpoint-context! 'field)
|
||||
(when (and (in-script?) (pair? (current-facet-id)))
|
||||
(error 'field
|
||||
"~a: Cannot declare fields in a script; are you missing a (react ...)?"
|
||||
|
@ -407,6 +424,7 @@
|
|||
(analyze-pattern stx #'P))
|
||||
(quasisyntax/loc stx
|
||||
(add-endpoint! #,(source-location->string stx)
|
||||
#f
|
||||
(lambda ()
|
||||
#,(let ((patch-stx #`(core:assert #,pat)))
|
||||
(if #'w.Pred
|
||||
|
@ -414,6 +432,22 @@
|
|||
patch-stx)))
|
||||
void))]))
|
||||
|
||||
(define-syntax (know stx)
|
||||
(syntax-parse stx
|
||||
[(_ w:when-pred P)
|
||||
(define-values (proj pat bindings _instantiated)
|
||||
(analyze-pattern stx #'P))
|
||||
(quasisyntax/loc stx
|
||||
(add-endpoint!
|
||||
#,(source-location->string stx)
|
||||
#t
|
||||
(lambda ()
|
||||
#,(let ((patch-stx #`(core:assert (internal-knowledge #,pat))))
|
||||
(if #'w.Pred
|
||||
#`(if w.Pred #,patch-stx patch-empty)
|
||||
patch-stx)))
|
||||
void))]))
|
||||
|
||||
(define (fid-ancestor? fid maybe-ancestor)
|
||||
(and (pair? fid) ;; empty fid lists obviously no ancestors at all!
|
||||
(or (equal? fid maybe-ancestor)
|
||||
|
@ -454,13 +488,17 @@
|
|||
(syntax-parse stx
|
||||
[(_ script ...)
|
||||
(quasisyntax/loc stx
|
||||
(schedule-script! (lambda () (begin/void-default script ...))))]))
|
||||
(begin
|
||||
(ensure-in-endpoint-context! 'on-start)
|
||||
(schedule-script! (lambda () (begin/void-default script ...)))))]))
|
||||
|
||||
(define-syntax (on-stop stx)
|
||||
(syntax-parse stx
|
||||
[(_ script ...)
|
||||
(quasisyntax/loc stx
|
||||
(add-stop-script! (lambda () (begin/void-default script ...))))]))
|
||||
(begin
|
||||
(ensure-in-endpoint-context! 'on-stop)
|
||||
(add-stop-script! (lambda () (begin/void-default script ...)))))]))
|
||||
|
||||
(define-syntax (on-event stx)
|
||||
(syntax-parse stx
|
||||
|
@ -474,6 +512,7 @@
|
|||
|
||||
(define (on-event* where proc #:priority [priority *normal-priority*])
|
||||
(add-endpoint! where
|
||||
#f
|
||||
(lambda () patch-empty)
|
||||
(lambda (e _current-interests _synthetic?)
|
||||
(schedule-script! #:priority priority (lambda () (proc e))))))
|
||||
|
@ -489,14 +528,18 @@
|
|||
|
||||
(define-syntax (during stx)
|
||||
(syntax-parse stx
|
||||
[(_ P O ...)
|
||||
(define E-stx (syntax/loc #'P (asserted P)))
|
||||
#:literals (know)
|
||||
[(_ (~or (~and K (know P)) P) O ...)
|
||||
(define E-stx (quasisyntax/loc #'P #,(if (attribute K)
|
||||
#'K
|
||||
#'(asserted P))))
|
||||
(define R-stx (if (attribute K) #'forget #'retracted))
|
||||
(define-values (_proj _pat _bindings instantiated)
|
||||
(analyze-pattern E-stx #'P))
|
||||
(quasisyntax/loc stx
|
||||
(on #,E-stx
|
||||
(let ((p #,instantiated))
|
||||
(react (stop-when (retracted p))
|
||||
(react (stop-when (#,R-stx p))
|
||||
O ...))))]))
|
||||
|
||||
(define-syntax (during/spawn stx)
|
||||
|
@ -547,6 +590,7 @@
|
|||
(quasisyntax/loc stx
|
||||
(let ()
|
||||
(add-endpoint! #,(source-location->string stx)
|
||||
#f
|
||||
(lambda ()
|
||||
(define subject-id (current-dataflow-subject-id))
|
||||
(schedule-script!
|
||||
|
@ -570,6 +614,8 @@
|
|||
(define-syntax (asserted stx) (raise-syntax-error #f "asserted: Used outside event spec" stx))
|
||||
(define-syntax (retracted stx) (raise-syntax-error #f "retracted: Used outside event spec" stx))
|
||||
(define-syntax (rising-edge stx) (raise-syntax-error #f "rising-edge: Used outside event spec" stx))
|
||||
(define-syntax (forget stx) (raise-syntax-error #f "forget: Used outside event spec" stx))
|
||||
(define-syntax (realize stx) (raise-syntax-error #f "realize: Used outside event spec" stx))
|
||||
|
||||
(define-syntax (suspend-script stx)
|
||||
(syntax-parse stx
|
||||
|
@ -772,62 +818,125 @@
|
|||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Syntax-time support
|
||||
|
||||
(define (interests-pre-and-post-patch pat synthetic?)
|
||||
(define (interests-pre-and-post-patch pat synthetic? retrieve-knowledge)
|
||||
(define (or* x y) (or x y))
|
||||
(define a (current-actor-state))
|
||||
(define previous-knowledge (if synthetic? trie-empty (actor-state-previous-knowledge a)))
|
||||
(define old (trie-lookup previous-knowledge pat #f #:wildcard-union or*))
|
||||
(define new (trie-lookup (actor-state-knowledge a) pat #f #:wildcard-union or*))
|
||||
(define-values (prev current) (retrieve-knowledge synthetic?))
|
||||
(define old (trie-lookup prev pat #f #:wildcard-union or*))
|
||||
(define new (trie-lookup current pat #f #:wildcard-union or*))
|
||||
(values old new))
|
||||
|
||||
(define (interest-just-appeared-matching? pat synthetic?)
|
||||
(define-values (old new) (interests-pre-and-post-patch pat synthetic?))
|
||||
(define (interest-just-appeared-matching? pat synthetic? retrieve-knowledge)
|
||||
(define-values (old new) (interests-pre-and-post-patch pat synthetic? retrieve-knowledge))
|
||||
(and (not old) new))
|
||||
|
||||
(define (interest-just-disappeared-matching? pat synthetic?)
|
||||
(define-values (old new) (interests-pre-and-post-patch pat synthetic?))
|
||||
(define (interest-just-disappeared-matching? pat synthetic? retrieve-knowledge)
|
||||
(define-values (old new) (interests-pre-and-post-patch pat synthetic? retrieve-knowledge))
|
||||
(and old (not new)))
|
||||
|
||||
(define-for-syntax (analyze-asserted/retracted outer-expr-stx
|
||||
when-pred-stx
|
||||
event-stx
|
||||
script-stx
|
||||
asserted?
|
||||
P-stx
|
||||
priority-stx)
|
||||
;; Bool -> (Values AssertionSet AssertionSet)
|
||||
;; retrieve the previous and current knowledge fields from the current actor state
|
||||
(define (current-actor-state-knowledges synthetic?)
|
||||
(define a (current-actor-state))
|
||||
(define previous-knowledge (if synthetic? trie-empty (actor-state-previous-knowledge a)))
|
||||
(define current-knowledge (actor-state-knowledge a))
|
||||
(values previous-knowledge current-knowledge))
|
||||
|
||||
;; Bool -> (Values AssertionSet AssertionSet)
|
||||
;; retrieve the previous and current knowledge fields from the current facet
|
||||
(define (current-facet-knowledges synthetic?)
|
||||
(define f (lookup-facet (current-facet-id)))
|
||||
(define previous-knowledge (if synthetic? trie-empty (facet-previous-knowledge f)))
|
||||
(define current-knowledge (facet-knowledge f))
|
||||
(values previous-knowledge current-knowledge))
|
||||
|
||||
(define-for-syntax (analyze-appear/disappear outer-expr-stx
|
||||
when-pred-stx
|
||||
event-stx
|
||||
script-stx
|
||||
asserted?
|
||||
P-stx
|
||||
priority-stx
|
||||
internal?)
|
||||
(define P+
|
||||
(if internal? #`(internal-knowledge #,P-stx) P-stx))
|
||||
(define-values (proj-stx pat bindings _instantiated)
|
||||
(analyze-pattern event-stx P-stx))
|
||||
(analyze-pattern event-stx P+))
|
||||
(define interest-stx
|
||||
(if internal?
|
||||
#`(patch-seq (core:sub #,pat)
|
||||
;; Allow other facets to see our interest
|
||||
(core:assert (internal-knowledge (observe #,(cadr pat)))))
|
||||
#`(core:sub #,pat)))
|
||||
(define event-predicate-stx (if asserted? #'patch/added? #'patch/removed?))
|
||||
(define patch-accessor-stx (if asserted? #'patch-added #'patch-removed))
|
||||
(define change-detector-stx
|
||||
(if asserted? #'interest-just-appeared-matching? #'interest-just-disappeared-matching?))
|
||||
(define knowledge-retriever
|
||||
(if internal? #'current-facet-knowledges #'current-actor-state-knowledges))
|
||||
(quasisyntax/loc outer-expr-stx
|
||||
(add-endpoint! #,(source-location->string outer-expr-stx)
|
||||
(lambda () (if #,when-pred-stx
|
||||
(core:sub #,pat)
|
||||
patch-empty))
|
||||
(lambda (e current-interests synthetic?)
|
||||
(when (not (trie-empty? current-interests))
|
||||
(core:match-event e
|
||||
[(? #,event-predicate-stx p)
|
||||
(define proj #,proj-stx)
|
||||
(define proj-arity (projection-arity proj))
|
||||
(define entry-set (trie-project/set #:take proj-arity
|
||||
(#,patch-accessor-stx p)
|
||||
proj))
|
||||
(when (not entry-set)
|
||||
(error 'asserted
|
||||
"Wildcard interest discovered while projecting by ~v at ~a"
|
||||
proj
|
||||
#,(source-location->string P-stx)))
|
||||
(for [(entry (in-set entry-set))]
|
||||
(let ((instantiated (instantiate-projection proj entry)))
|
||||
(and (#,change-detector-stx instantiated synthetic?)
|
||||
(schedule-script!
|
||||
#:priority #,priority-stx
|
||||
(lambda ()
|
||||
(match-define (list #,@bindings) entry)
|
||||
#,script-stx)))))]))))))
|
||||
(add-endpoint!
|
||||
#,(source-location->string outer-expr-stx)
|
||||
#,internal?
|
||||
(lambda () (if #,when-pred-stx
|
||||
#,interest-stx
|
||||
patch-empty))
|
||||
(lambda (e current-interests synthetic?)
|
||||
(when (not (trie-empty? current-interests))
|
||||
(core:match-event e
|
||||
[(? #,event-predicate-stx p)
|
||||
(define proj #,proj-stx)
|
||||
(define proj-arity (projection-arity proj))
|
||||
(define entry-set (trie-project/set #:take proj-arity
|
||||
(#,patch-accessor-stx p)
|
||||
proj))
|
||||
(when (not entry-set)
|
||||
(error 'asserted
|
||||
"Wildcard interest discovered while projecting by ~v at ~a"
|
||||
proj
|
||||
#,(source-location->string P-stx)))
|
||||
(for [(entry (in-set entry-set))]
|
||||
(let ((instantiated (instantiate-projection proj entry)))
|
||||
(and (#,change-detector-stx instantiated synthetic? #,knowledge-retriever)
|
||||
(schedule-script!
|
||||
#:priority #,priority-stx
|
||||
(lambda ()
|
||||
(match-define (list #,@bindings) entry)
|
||||
#,script-stx)))))]))))))
|
||||
|
||||
(define-for-syntax (analyze-message outer-expr-stx
|
||||
when-pred-stx
|
||||
event-stx
|
||||
script-stx
|
||||
P-stx
|
||||
priority-stx
|
||||
internal?)
|
||||
(define-values (proj pat bindings _instantiated)
|
||||
(analyze-pattern event-stx P-stx))
|
||||
(define sub
|
||||
(if internal? #`(internal-knowledge #,pat) pat))
|
||||
(define matchp
|
||||
(if internal? #'(internal-knowledge body) #'body))
|
||||
(quasisyntax/loc outer-expr-stx
|
||||
(add-endpoint!
|
||||
#,(source-location->string outer-expr-stx)
|
||||
#,internal?
|
||||
(lambda () (if #,when-pred-stx
|
||||
(core:sub #,sub)
|
||||
patch-empty))
|
||||
(lambda (e current-interests _synthetic?)
|
||||
(when (not (trie-empty? current-interests))
|
||||
(core:match-event e
|
||||
[(core:message #,matchp)
|
||||
(define capture-vals
|
||||
(match-value/captures
|
||||
body
|
||||
#,proj))
|
||||
(and capture-vals
|
||||
(schedule-script!
|
||||
#:priority #,priority-stx
|
||||
(lambda ()
|
||||
(apply (lambda #,bindings #,script-stx)
|
||||
capture-vals))))]))))))
|
||||
|
||||
(define-for-syntax orig-insp
|
||||
(variable-reference->module-declaration-inspector (#%variable-reference)))
|
||||
|
@ -839,7 +948,7 @@
|
|||
priority-stx)
|
||||
(define event-stx (syntax-disarm armed-event-stx orig-insp))
|
||||
(syntax-parse event-stx
|
||||
#:literals [core:message asserted retracted rising-edge]
|
||||
#:literals [core:message asserted retracted rising-edge know forget realize]
|
||||
[(expander args ...)
|
||||
#:when (event-expander-id? #'expander)
|
||||
(event-expander-transform
|
||||
|
@ -851,33 +960,23 @@
|
|||
script-stx
|
||||
priority-stx)))]
|
||||
[(core:message P)
|
||||
(define-values (proj pat bindings _instantiated)
|
||||
(analyze-pattern event-stx #'P))
|
||||
(quasisyntax/loc outer-expr-stx
|
||||
(add-endpoint! #,(source-location->string outer-expr-stx)
|
||||
(lambda () (if #,when-pred-stx
|
||||
(core:sub #,pat)
|
||||
patch-empty))
|
||||
(lambda (e current-interests _synthetic?)
|
||||
(when (not (trie-empty? current-interests))
|
||||
(core:match-event e
|
||||
[(core:message body)
|
||||
(define capture-vals
|
||||
(match-value/captures
|
||||
body
|
||||
#,proj))
|
||||
(and capture-vals
|
||||
(schedule-script!
|
||||
#:priority #,priority-stx
|
||||
(lambda ()
|
||||
(apply (lambda #,bindings #,script-stx)
|
||||
capture-vals))))])))))]
|
||||
(analyze-message outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#'P priority-stx #f)]
|
||||
[(asserted P)
|
||||
(analyze-asserted/retracted outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#t #'P priority-stx)]
|
||||
(analyze-appear/disappear outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#t #'P priority-stx #f)]
|
||||
[(retracted P)
|
||||
(analyze-asserted/retracted outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#f #'P priority-stx)]
|
||||
(analyze-appear/disappear outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#f #'P priority-stx #f)]
|
||||
[(realize P)
|
||||
(analyze-message outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#'P priority-stx #t)]
|
||||
[(know P)
|
||||
(analyze-appear/disappear outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#t #'P priority-stx #t)]
|
||||
[(forget P)
|
||||
(analyze-appear/disappear outer-expr-stx when-pred-stx event-stx script-stx
|
||||
#f #'P priority-stx #t)]
|
||||
[(rising-edge Pred)
|
||||
(define field-name
|
||||
(datum->syntax event-stx
|
||||
|
@ -887,6 +986,7 @@
|
|||
(let ()
|
||||
(field [#,field-name #f])
|
||||
(add-endpoint! #,(source-location->string outer-expr-stx)
|
||||
#f
|
||||
(lambda ()
|
||||
(when #,when-pred-stx
|
||||
(define old-val (#,field-name))
|
||||
|
@ -1003,14 +1103,30 @@
|
|||
(current-pending-actions (list (current-pending-actions)
|
||||
((current-action-transformer) p)))))
|
||||
|
||||
(define (schedule-internal-event! ac)
|
||||
(if (patch? ac)
|
||||
(when (patch-non-empty? ac)
|
||||
(current-pending-internal-patch (compose-patch ac (current-pending-internal-patch))))
|
||||
(begin (flush-pending-internal-patch!)
|
||||
(current-pending-internal-events (list (current-pending-internal-events)
|
||||
((current-action-transformer) ac))))))
|
||||
|
||||
(define (flush-pending-internal-patch!)
|
||||
(define p (current-pending-internal-patch))
|
||||
(when (patch-non-empty? p)
|
||||
(current-pending-internal-patch patch-empty)
|
||||
(current-pending-internal-events (list (current-pending-internal-events)
|
||||
((current-action-transformer) p)))))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Endpoint Creation
|
||||
|
||||
(define (add-endpoint! where patch-fn handler-fn)
|
||||
(when (in-script?)
|
||||
(error 'add-endpoint!
|
||||
"~a: Cannot add endpoint in script; are you missing a (react ...)?"
|
||||
where))
|
||||
(define (ensure-in-endpoint-context! who)
|
||||
(when (or (in-script?) (null? (current-facet-id)))
|
||||
(error who "Attempt to add endpoint out of installation context; are you missing a (react ...)?")))
|
||||
|
||||
(define (add-endpoint! where internal? patch-fn handler-fn)
|
||||
(ensure-in-endpoint-context! 'add-endpoint!)
|
||||
(define-values (new-eid delta-aggregate)
|
||||
(let ()
|
||||
(define a (current-actor-state))
|
||||
|
@ -1030,7 +1146,9 @@
|
|||
(hash-set (facet-endpoints f)
|
||||
new-eid
|
||||
(endpoint new-eid patch-fn handler-fn))]))))
|
||||
(schedule-action! delta-aggregate))
|
||||
(if internal?
|
||||
(schedule-internal-event! delta-aggregate)
|
||||
(schedule-action! delta-aggregate)))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Facet Lifecycle
|
||||
|
@ -1045,7 +1163,7 @@
|
|||
(define fid-uid next-fid-uid)
|
||||
(define fid (cons fid-uid parent-fid))
|
||||
(set! next-fid-uid (+ next-fid-uid 1))
|
||||
(update-facet! fid (lambda (_f) (facet fid (hasheqv) '() (set))))
|
||||
(update-facet! fid (lambda (_f) (facet fid (hasheqv) '() (set) trie-empty trie-empty)))
|
||||
(update-facet! parent-fid
|
||||
(lambda (pf)
|
||||
(and pf (struct-copy facet pf
|
||||
|
@ -1094,8 +1212,21 @@
|
|||
(dataflow-forget-subject! (actor-state-field-dataflow a) (list fid eid))
|
||||
(define-values (new-mux _eid _delta delta-aggregate)
|
||||
(mux-remove-stream (actor-state-mux a) eid))
|
||||
(current-actor-state (struct-copy actor-state a [mux new-mux]))
|
||||
(schedule-action! delta-aggregate))))
|
||||
(define-values (internal external) (split-internal/external delta-aggregate))
|
||||
(current-actor-state (struct-copy actor-state a
|
||||
[mux new-mux]))
|
||||
(schedule-script!
|
||||
#:priority *gc-priority*
|
||||
;; need to do this later for the forget change detector
|
||||
(lambda ()
|
||||
(define a (current-actor-state))
|
||||
(define new-knowledge
|
||||
(apply-patch (actor-state-knowledge a) internal))
|
||||
(current-actor-state (struct-copy actor-state a
|
||||
[knowledge new-knowledge]))))
|
||||
|
||||
(schedule-internal-event! internal)
|
||||
(schedule-action! external))))
|
||||
|
||||
(schedule-script!
|
||||
#:priority *gc-priority*
|
||||
|
@ -1124,6 +1255,8 @@
|
|||
(make-dataflow-graph)))
|
||||
(current-pending-patch patch-empty)
|
||||
(current-pending-actions '())
|
||||
(current-pending-internal-patch patch-empty)
|
||||
(current-pending-internal-events '())
|
||||
(current-pending-scripts (make-empty-pending-scripts))
|
||||
(current-action-transformer values)]
|
||||
(with-current-facet '() #f
|
||||
|
@ -1151,6 +1284,7 @@
|
|||
(when script
|
||||
(script)
|
||||
(refresh-facet-assertions!)
|
||||
(dispatch-internal-events!)
|
||||
(run-all-pending-scripts!)))
|
||||
|
||||
(define (run-scripts!)
|
||||
|
@ -1162,6 +1296,20 @@
|
|||
(core:quit pending-actions)
|
||||
(core:transition (current-actor-state) pending-actions)))
|
||||
|
||||
;; dispatch the internal events that have accumulated during script execution
|
||||
(define (dispatch-internal-events!)
|
||||
(flush-pending-internal-patch!)
|
||||
(define pending (flatten (current-pending-internal-events)))
|
||||
(current-pending-internal-events '())
|
||||
(define a (current-actor-state))
|
||||
(for* ([e (in-list pending)]
|
||||
[(fid f) (in-hash (actor-state-facets a))])
|
||||
(when (patch? e)
|
||||
(define a (current-actor-state))
|
||||
(current-actor-state (struct-copy actor-state a
|
||||
[knowledge (apply-patch (actor-state-knowledge a) e)])))
|
||||
(facet-handle-event! fid f e #f)))
|
||||
|
||||
(define (refresh-facet-assertions!)
|
||||
(dataflow-repair-damage! (actor-state-field-dataflow (current-actor-state))
|
||||
(lambda (subject-id)
|
||||
|
@ -1189,7 +1337,9 @@
|
|||
(define-values (new-mux _eid _delta delta-aggregate)
|
||||
(mux-update-stream (actor-state-mux a) eid patch))
|
||||
(current-actor-state (struct-copy actor-state a [mux new-mux]))
|
||||
(schedule-action! delta-aggregate))
|
||||
(define-values (internal external) (split-internal/external delta-aggregate))
|
||||
(schedule-internal-event! internal)
|
||||
(schedule-action! external))
|
||||
|
||||
(define (actor-behavior e a)
|
||||
(and e
|
||||
|
@ -1197,10 +1347,12 @@
|
|||
(if (patch? e)
|
||||
(struct-copy actor-state a
|
||||
[previous-knowledge (actor-state-knowledge a)]
|
||||
[knowledge (update-interests (actor-state-knowledge a) e)])
|
||||
[knowledge (apply-patch (actor-state-knowledge a) e)])
|
||||
a))
|
||||
(current-pending-patch patch-empty)
|
||||
(current-pending-actions '())
|
||||
(current-pending-internal-patch patch-empty)
|
||||
(current-pending-internal-events '())
|
||||
(current-pending-scripts (make-empty-pending-scripts))
|
||||
(current-action-transformer values)]
|
||||
(for [((fid f) (in-hash (actor-state-facets a)))]
|
||||
|
@ -1210,6 +1362,14 @@
|
|||
(define (facet-handle-event! fid f e synthetic?)
|
||||
(define mux (actor-state-mux (current-actor-state)))
|
||||
(with-current-facet fid #f
|
||||
(when (patch? e)
|
||||
(define internal (internal-patch e))
|
||||
(update-facet! fid
|
||||
(lambda (f)
|
||||
(and f
|
||||
(struct-copy facet f
|
||||
[previous-knowledge (facet-knowledge f)]
|
||||
[knowledge (apply-patch (facet-knowledge f) internal)])))))
|
||||
(for [(ep (in-hash-values (facet-endpoints f)))]
|
||||
((endpoint-handler-fn ep) e (mux-interests-of mux (endpoint-id ep)) synthetic?))))
|
||||
|
||||
|
@ -1306,6 +1466,10 @@
|
|||
(ensure-in-script! 'send!)
|
||||
(schedule-action! (core:message M)))
|
||||
|
||||
(define (realize! M)
|
||||
(ensure-in-script! 'realize!)
|
||||
(schedule-internal-event! (core:message (internal-knowledge M))))
|
||||
|
||||
(define *adhoc-label* -1)
|
||||
|
||||
(define (assert! P)
|
||||
|
@ -1337,6 +1501,23 @@
|
|||
(ensure-in-script! 'quit-dataspace!)
|
||||
(schedule-action! (core:quit-dataspace)))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Helpers
|
||||
|
||||
;; Patch -> (Values Patch Patch)
|
||||
;; split a patch into its internal and external components
|
||||
(define (split-internal/external e)
|
||||
(define internal (internal-patch e))
|
||||
(values internal
|
||||
(patch (trie-subtract (patch-added e) (patch-added internal))
|
||||
(trie-subtract (patch-removed e) (patch-removed internal)))))
|
||||
|
||||
;; Patch -> Patch
|
||||
;; Remove all items from a patch not constructed with internal-knowledge
|
||||
(define (internal-patch e)
|
||||
(patch-prepend internal-knowledge-parenthesis
|
||||
(patch-step e internal-knowledge-parenthesis)))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define (format-field-descriptor d)
|
||||
|
@ -1352,7 +1533,7 @@
|
|||
(fprintf p " - Knowledge:\n ~a" (trie->pretty-string knowledge #:indent 3))
|
||||
(fprintf p " - Facets:\n")
|
||||
(for ([(fid f) (in-hash facets)])
|
||||
(match-define (facet _fid endpoints _ children) f)
|
||||
(match-define (facet _fid endpoints _ children _ _) f)
|
||||
(fprintf p " ---- facet ~a, children=~a" fid (set->list children))
|
||||
(when (not (hash-empty? endpoints))
|
||||
(fprintf p ", endpoints=~a" (hash-keys endpoints)))
|
||||
|
|
|
@ -2,11 +2,13 @@
|
|||
|
||||
(require (for-syntax racket/base syntax/kerncase))
|
||||
(require (for-syntax syntax/parse))
|
||||
(require (for-syntax (only-in racket/list make-list)))
|
||||
|
||||
(require racket/match)
|
||||
(require "main.rkt")
|
||||
(require (submod "actor.rkt" for-module-begin))
|
||||
(require "store.rkt")
|
||||
(require (only-in "core.rkt" clean-actions))
|
||||
|
||||
(provide (rename-out [module-begin #%module-begin])
|
||||
activate
|
||||
|
@ -52,6 +54,31 @@
|
|||
(module+ main (current-ground-dataspace run-ground))
|
||||
forms ...)))]))
|
||||
|
||||
;; Identifier -> Bool
|
||||
;; Is the identifier a form that shouldn't capture actor actions?
|
||||
;; note the absence of define-values
|
||||
(define-for-syntax (kernel-id? x)
|
||||
(ormap (lambda (i) (free-identifier=? x i))
|
||||
(syntax->list #'(require
|
||||
provide
|
||||
define-values
|
||||
define-syntaxes
|
||||
begin-for-syntax
|
||||
module
|
||||
module*
|
||||
module+
|
||||
#%require
|
||||
#%provide
|
||||
#%declare
|
||||
begin-for-declarations))))
|
||||
|
||||
(define (ensure-spawn-actions! acts)
|
||||
(define cleaned-acts (clean-actions acts))
|
||||
(for ([act (in-list cleaned-acts)]
|
||||
#:unless (actor? act))
|
||||
(raise-argument-error 'syndicate-module "top-level actor creation action" act))
|
||||
cleaned-acts)
|
||||
|
||||
(define-syntax (syndicate-module stx)
|
||||
(syntax-parse stx
|
||||
[(_ (action-ids ...) (form forms ...))
|
||||
|
@ -61,27 +88,29 @@
|
|||
#'begin-for-declarations)
|
||||
(kernel-form-identifier-list))))
|
||||
(syntax-parse expanded
|
||||
#:literals (begin)
|
||||
#:literals (begin define-values)
|
||||
[(begin more-forms ...)
|
||||
#'(syndicate-module (action-ids ...) (more-forms ... forms ...))]
|
||||
[(define-values (x:id ...) e)
|
||||
#:with action-id (car (generate-temporaries (list #'form)))
|
||||
#:with (tmp ...) (generate-temporaries #'(x ...))
|
||||
#`(begin
|
||||
(define-values (tmp ...) (values #,@(make-list (length (syntax->list #'(x ...))) #'#f)))
|
||||
(define action-id
|
||||
(ensure-spawn-actions!
|
||||
(capture-actor-actions
|
||||
(lambda () (set!-values (tmp ...) e)))))
|
||||
(define-values (x ...) (values tmp ...))
|
||||
(syndicate-module (action-ids ... action-id) (forms ...)))]
|
||||
[(head rest ...)
|
||||
(if (ormap (lambda (i) (free-identifier=? #'head i))
|
||||
(syntax->list #'(require
|
||||
provide
|
||||
define-values
|
||||
define-syntaxes
|
||||
begin-for-syntax
|
||||
module
|
||||
module*
|
||||
module+
|
||||
#%require
|
||||
#%provide
|
||||
#%declare
|
||||
begin-for-declarations)))
|
||||
#`(begin #,expanded (syndicate-module (action-ids ...) (forms ...)))
|
||||
(with-syntax ([action-id (car (generate-temporaries (list #'form)))])
|
||||
#`(begin (define action-id (capture-actor-actions (lambda () #,expanded)))
|
||||
(syndicate-module (action-ids ... action-id) (forms ...)))))]
|
||||
(cond
|
||||
[(kernel-id? #'head)
|
||||
#`(begin #,expanded (syndicate-module (action-ids ...) (forms ...)))]
|
||||
[else
|
||||
(with-syntax ([action-id (car (generate-temporaries (list #'form)))])
|
||||
#`(begin
|
||||
(define action-id (ensure-spawn-actions! (capture-actor-actions (lambda () #,expanded))))
|
||||
(syndicate-module (action-ids ... action-id) (forms ...))))])]
|
||||
[non-pair-syntax
|
||||
#'(begin form (syndicate-module (action-ids ...) (forms ...)))])]
|
||||
[(_ (action-ids ...) ())
|
||||
|
|
|
@ -1,12 +1,8 @@
|
|||
#lang syndicate
|
||||
|
||||
(require (only-in racket/set
|
||||
set
|
||||
set-count
|
||||
set-empty?
|
||||
set-first
|
||||
set-remove))
|
||||
(require racket/set)
|
||||
(require (only-in racket/list
|
||||
first
|
||||
partition
|
||||
empty?
|
||||
split-at))
|
||||
|
@ -17,6 +13,7 @@
|
|||
string-trim))
|
||||
(require (only-in racket/sequence
|
||||
sequence->list))
|
||||
(require (only-in racket/function const))
|
||||
|
||||
(module+ test
|
||||
(require rackunit))
|
||||
|
@ -38,27 +35,31 @@ of each TaskManager (TM) is contingent on the presence of a job manager.
|
|||
#|
|
||||
In turn, TaskManagers advertise their presence with (task-manager ID slots),
|
||||
where ID is a unique id, and slots is a natural number. The number of slots
|
||||
dictates how many tasks the TM can take on. To reduce contention, we the JM
|
||||
dictates how many tasks the TM can take on. To reduce contention, the JM
|
||||
should only assign a task to a TM if the TM actually has the resources to
|
||||
perform a task.
|
||||
|#
|
||||
(assertion-struct task-manager (id slots))
|
||||
;; an ID is a symbol or a natural number.
|
||||
;; Any -> Bool
|
||||
;; recognize ids
|
||||
;; recognize IDs
|
||||
(define (id? x)
|
||||
(or (symbol? x) (exact-nonnegative-integer? x)))
|
||||
#|
|
||||
The resources available to a TM are its associated TaskRunners (TRs). TaskRunners
|
||||
assert their presence with (task-runner ID Status), where Status is one of
|
||||
- IDLE, when the TR is not executing a task
|
||||
- (executing ID), when the TR is executing the task with the given ID
|
||||
- OVERLOAD, when the TR has been asked to perform a task before it has
|
||||
finished its previous assignment. For the purposes of this model, it indicates a
|
||||
failure in the protocol; like the exchange between the JM and the TM, a TR
|
||||
should only receive tasks when it is IDLE.
|
||||
assert their presence with (task-runner ID)
|
||||
|
||||
|#
|
||||
(assertion-struct task-runner (id))
|
||||
#|
|
||||
a Status is one of
|
||||
- IDLE, when the TR is not executing a task
|
||||
- (executing ID), when the TR is executing the task with the given ID
|
||||
- OVERLOAD, when the TR has been asked to perform a task before it has
|
||||
finished its previous assignment. For the purposes of this model, it indicates a
|
||||
failure in the protocol; like the exchange between the JM and the TM, a TR
|
||||
should only receive tasks when it is IDLE.
|
||||
|#
|
||||
(assertion-struct task-runner (id status))
|
||||
(define IDLE 'idle)
|
||||
(define OVERLOAD 'overload)
|
||||
(struct executing (id) #:transparent)
|
||||
|
@ -69,19 +70,22 @@ Task Delegation Protocol
|
|||
|
||||
Task Delegation has two roles, TaskAssigner (TA) and TaskPerformer (TP).
|
||||
|
||||
A TaskAssigner asserts the association of a Task with a particular TaskPerformer
|
||||
through
|
||||
(task-assignment ID ID Task)
|
||||
where the first ID identifies the TP and the second identifies the job.
|
||||
A TaskAssigner requests the performance of a Task with a particular TaskPerformer
|
||||
through the assertion of interest
|
||||
(observe (task-performance ID Task ★))
|
||||
where the ID identifies the TP
|
||||
|#
|
||||
(assertion-struct task-assignment (assignee job-id task))
|
||||
(assertion-struct task-performance (assignee task desc))
|
||||
#|
|
||||
A Task is a (task ID Work), where Work is one of
|
||||
A Task is a (task TaskID Work), where Work is one of
|
||||
- (map-work String)
|
||||
- (reduce-work (U ID TaskResult) (U ID TaskResult)), referring to either the
|
||||
ID of the dependent task or its results. A reduce-work is ready to be executed
|
||||
when it has both results.
|
||||
|
||||
A TaskID is a (list ID ID), where the first ID is specific to the individual
|
||||
task and the second identifies the job it belongs to.
|
||||
|
||||
A TaskResult is a (Hashof String Natural), counting the occurrences of words
|
||||
|#
|
||||
(struct task (id desc) #:transparent)
|
||||
|
@ -89,11 +93,9 @@ A TaskResult is a (Hashof String Natural), counting the occurrences of words
|
|||
(struct reduce-work (left right) #:transparent)
|
||||
|
||||
#|
|
||||
The TaskPerformer responds to a task-assignment by describing its state with respect
|
||||
The TaskPerformer responds to a request by describing its state with respect
|
||||
to that task,
|
||||
(task-state ID ID ID TaskStateDesc)
|
||||
where the first ID is that of the TP, the second is that of the job,
|
||||
and the third that of the task.
|
||||
(task-performance ID Task TaskStateDesc)
|
||||
|
||||
A TaskStateDesc is one of
|
||||
- ACCEPTED, when the TP has the resources to perform the task. (TODO - not sure if this is ever visible, currently)
|
||||
|
@ -101,7 +103,6 @@ A TaskStateDesc is one of
|
|||
- RUNNING, indicating that the task is being performed
|
||||
- (finished TaskResult), describing the results
|
||||
|#
|
||||
(assertion-struct task-state (assignee job-id task-id desc))
|
||||
(struct finished (data) #:transparent)
|
||||
(define ACCEPTED 'accepted)
|
||||
(define RUNNING 'running)
|
||||
|
@ -115,11 +116,14 @@ TaskRunners.
|
|||
Job Submission Protocol
|
||||
-----------------------
|
||||
|
||||
Finally, Clients submit their jobs to the JobManager by asserting a Job, which is a (job ID (Listof Task)).
|
||||
The JobManager then performs the job and, when finished, asserts (job-finished ID TaskResult)
|
||||
Finally, Clients submit their jobs to the JobManager by asserting interest
|
||||
(observe (job-completion ID (Listof Task) ★))
|
||||
|
||||
The JobManager then performs the job and, when finished, asserts
|
||||
(job-completion ID (Listof Task) TaskResults)
|
||||
|#
|
||||
(assertion-struct job (id tasks))
|
||||
(assertion-struct job-finished (id data))
|
||||
(struct job (id tasks) #:transparent)
|
||||
(assertion-struct job-completion (id data result))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; Logging
|
||||
|
@ -128,35 +132,64 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
(displayln (apply format fmt args)))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; TaskRunner
|
||||
;; Generic Implementation of Task Delegation Protocol
|
||||
|
||||
(define (spawn-task-runner)
|
||||
(define id (gensym 'task-runner))
|
||||
;; a TaskFun is a
|
||||
;; (Task ID (TaskResults -> Void) ((U ACCEPTED OVERLOAD RUNNING) -> Void) -> Void)
|
||||
|
||||
;; ID (-> Bool) TaskFun -> TaskPerformer
|
||||
;; doesn't really account for long-running tasks
|
||||
;; gonna need some effect polymorphism to type uses of this
|
||||
(define (task-performer my-id can-accept? perform-task)
|
||||
(react
|
||||
(during (observe (task-performance my-id $task _))
|
||||
(field [status #f])
|
||||
(assert (task-performance my-id task (status)))
|
||||
(cond
|
||||
[(can-accept?)
|
||||
(status RUNNING)
|
||||
(define (on-complete results)
|
||||
(status (finished results)))
|
||||
(perform-task task on-complete status)]
|
||||
[else
|
||||
(status OVERLOAD)]))))
|
||||
|
||||
;; Task
|
||||
;; ID
|
||||
;; (-> Void)
|
||||
;; (TaskResults -> Void)
|
||||
;; -> TaskAssigner
|
||||
(define (task-assigner tsk performer on-overload! on-complete!)
|
||||
(react
|
||||
(on (asserted (task-performance performer tsk $status))
|
||||
(match status
|
||||
[(or (== ACCEPTED)
|
||||
(== RUNNING))
|
||||
(void)]
|
||||
[(== OVERLOAD)
|
||||
(stop-current-facet (on-overload!))]
|
||||
[(finished results)
|
||||
(stop-current-facet (on-complete! results))]))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; TaskRunner
|
||||
;; ID ID -> Spawn
|
||||
(define (spawn-task-runner id tm-id)
|
||||
(spawn #:name id
|
||||
(field [status IDLE])
|
||||
(define (idle?) (equal? IDLE (status)))
|
||||
(assert (task-runner id (status)))
|
||||
(begin/dataflow
|
||||
(log "task-runner ~v state is: ~a" id (status)))
|
||||
(during (task-assignment id $job-id (task $tid $desc))
|
||||
(field [execution-state (if (idle?) RUNNING OVERLOAD)]
|
||||
[word-count (hash)])
|
||||
(assert (task-state id job-id tid (execution-state)))
|
||||
;; we have to avoid asking a non-idle runner to do anything
|
||||
(when (idle?)
|
||||
(on-stop (status IDLE))
|
||||
(on-start
|
||||
(status (executing tid))
|
||||
;; since we currently finish everything in one turn, allow other actors to observe the changes in our
|
||||
;; task-runner state by flushing pending actions.
|
||||
(flush!)
|
||||
(match desc
|
||||
[(map-work data)
|
||||
(word-count (count-new-words (word-count) (string->words data)))
|
||||
(execution-state (finished (word-count)))]
|
||||
[(reduce-work left right)
|
||||
(word-count (hash-union left right #:combine +))
|
||||
(execution-state (finished (word-count)))]))))))
|
||||
(assert (task-runner id))
|
||||
(stop-when (retracted (task-manager tm-id _)))
|
||||
;; Task (TaskStateDesc -> Void) -> Void
|
||||
(define (perform-task tsk on-complete! update-status!)
|
||||
(match-define (task tid desc) tsk)
|
||||
(match desc
|
||||
[(map-work data)
|
||||
(define wc (count-new-words (hash) (string->words data)))
|
||||
(on-complete! wc)]
|
||||
[(reduce-work left right)
|
||||
(define wc (hash-union left right #:combine +))
|
||||
(on-complete! wc)]))
|
||||
(on-start
|
||||
(task-performer id (const #t) perform-task))))
|
||||
|
||||
;; (Hash String Nat) String -> (Hash String Nat)
|
||||
(define (word-count-increment h word)
|
||||
|
@ -185,166 +218,202 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
(list "good" "eve" "ma'am"))
|
||||
(check-equal? (string->words "please sir. may I have another?")
|
||||
(list "please" "sir" "may" "I" "have" "another"))
|
||||
;; TODO - currently fails
|
||||
;; currently fails, doesn't seem worth fixing
|
||||
#;(check-equal? (string->words "but wait---there's more")
|
||||
(list "but" "wait" "there's" "more")))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; TaskManager
|
||||
|
||||
(define (spawn-task-manager)
|
||||
;; PosInt -> Spawn
|
||||
(define (spawn-task-manager num-task-runners)
|
||||
(define id (gensym 'task-manager))
|
||||
(spawn #:name id
|
||||
(log "Task Manager (TM) ~a is running" id)
|
||||
(during (job-manager-alive)
|
||||
(log "TM learns about JM")
|
||||
(define/query-set task-runners (task-runner $id _) id
|
||||
#:on-add (log "TM learns about task-runner ~a" id))
|
||||
;; I wonder just how inefficient this is
|
||||
(define/query-set idle-runners (task-runner $id IDLE) id
|
||||
#:on-add (log "TM learns that task-runner ~a is IDLE" id)
|
||||
#:on-remove (log "TM learns that task-runner ~a is NOT IDLE" id))
|
||||
(assert (task-manager id (set-count (idle-runners))))
|
||||
(field [busy-runners (list)])
|
||||
(during (task-assignment id $job-id $t)
|
||||
(match-define (task task-id desc) t)
|
||||
#;(on-start (log "TM receives task ~a" task-id))
|
||||
(log "TM receives task ~a" task-id)
|
||||
(on-stop (log "TM finished with task ~a" task-id))
|
||||
(field [status ACCEPTED])
|
||||
;; TODO - could delegate this assertion, in the non-overloaded case, to TaskRunner
|
||||
;; (also removing the first id from task-state)
|
||||
(assert (task-state id job-id task-id (status)))
|
||||
(cond
|
||||
[(set-empty? (idle-runners))
|
||||
(log "TM can't run ~a right now" task-id)
|
||||
(status OVERLOAD)]
|
||||
[else
|
||||
(define runner (set-first (idle-runners)))
|
||||
;; n.b. modifying a query set is questionable
|
||||
;; but if we wait for the IDLE assertion to be retracted, we might assign multiple tasks to the same runner.
|
||||
;; Could use the busy-runners field to avoid that
|
||||
(idle-runners (set-remove (idle-runners) runner))
|
||||
(log "TM assigns task ~a to runner ~a" task-id runner)
|
||||
(assert (task-assignment runner job-id t))
|
||||
(status RUNNING)
|
||||
(on (asserted (task-state runner job-id task-id $state))
|
||||
(match state
|
||||
[(or (== ACCEPTED)
|
||||
(== RUNNING))
|
||||
;; nothing to do
|
||||
(void)]
|
||||
[(== OVERLOAD)
|
||||
(log "TM overloaded TR with task ~a" task-id)
|
||||
(status OVERLOAD)]
|
||||
[(finished results)
|
||||
(log "TM receives the results of task ~a" task-id)
|
||||
(status state)]))])))))
|
||||
(log "TM ~a learns about JM" id)
|
||||
|
||||
(field [task-runners (set)])
|
||||
|
||||
;; Create & Monitor Task Runners
|
||||
(on-start
|
||||
(for ([_ (in-range num-task-runners)])
|
||||
(define tr-id (gensym 'task-runner))
|
||||
(react
|
||||
(on-start (spawn-task-runner tr-id id))
|
||||
(on (asserted (task-runner tr-id))
|
||||
(log "TM ~a successfully created task-runner ~a" id tr-id)
|
||||
(task-runners (set-add (task-runners) tr-id)))
|
||||
(on (retracted (task-runner tr-id))
|
||||
(log "TM ~a detected failure of task runner ~a, restarting" id tr-id)
|
||||
(task-runners (set-remove (task-runners) tr-id))
|
||||
(spawn-task-runner tr-id id)))))
|
||||
|
||||
;; Assign incoming tasks
|
||||
(field [busy-runners (set)])
|
||||
|
||||
(define (idle-runners)
|
||||
(set-count (set-subtract (task-runners) (busy-runners))))
|
||||
|
||||
(assert (task-manager id (idle-runners)))
|
||||
|
||||
(define (can-accept?)
|
||||
(positive? (idle-runners)))
|
||||
(define (select-runner)
|
||||
(define runner (for/first ([r (in-set (task-runners))]
|
||||
#:unless (set-member? (busy-runners) r))
|
||||
r))
|
||||
(unless runner
|
||||
(log "ERROR: TM ~a failed to select a runner.\nrunners: ~a\nbusy: ~a" id (task-runners) (busy-runners)))
|
||||
(busy-runners (set-add (busy-runners) runner))
|
||||
runner)
|
||||
(define (perform-task tsk on-complete! update-status!)
|
||||
(match-define (task task-id desc) tsk)
|
||||
(define runner (select-runner))
|
||||
(log "TM ~a assigns task ~a to runner ~a" id task-id runner)
|
||||
(on-stop (busy-runners (set-remove (busy-runners) runner)))
|
||||
(on-start
|
||||
(task-assigner tsk runner
|
||||
(lambda () (update-status! OVERLOAD))
|
||||
(lambda (results) (on-complete! results)))))
|
||||
(on-start
|
||||
(task-performer id can-accept? perform-task)))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; JobManager
|
||||
|
||||
;; assertions used for internal slot-management protocol
|
||||
(assertion-struct slots (v))
|
||||
(assertion-struct slot-assignment (who mngr))
|
||||
;; tid is the TaskID, rid is a unique symbol to a particular request for a slot
|
||||
(struct request-id (tid rid) #:prefab)
|
||||
|
||||
(message-struct task-is-ready (job-id task))
|
||||
|
||||
(define (spawn-job-manager)
|
||||
(spawn
|
||||
(assert (job-manager-alive))
|
||||
(log "Job Manager Up")
|
||||
|
||||
;; keep track of task managers, how many slots they say are open, and how many tasks we have assigned.
|
||||
(define/query-hash task-managers (task-manager $id $slots) id slots
|
||||
#:on-add (log "JM learns that ~a has ~v slots" id slots))
|
||||
(on-start
|
||||
(react
|
||||
|
||||
;; (Hashof TaskManagerID Nat)
|
||||
;; to better understand the supply of slots for each task manager, keep track of the number
|
||||
;; of requested tasks that we have yet to hear back about
|
||||
(field [requests-in-flight (hash)])
|
||||
(define (slots-available)
|
||||
(for/sum ([(id v) (in-hash (task-managers))])
|
||||
(max 0 (- v (hash-ref (requests-in-flight) id 0)))))
|
||||
;; ID -> Void
|
||||
;; mark that we have requested the given task manager to perform a task
|
||||
(define (take-slot! id)
|
||||
(log "JM assigns a task to ~a" id)
|
||||
(requests-in-flight (hash-update (requests-in-flight) id add1 0)))
|
||||
;; ID -> Void
|
||||
;; mark that we have heard back from the given manager about a requested task
|
||||
(define (received-answer! id)
|
||||
(requests-in-flight (hash-update (requests-in-flight) id sub1)))
|
||||
;; keep track of task managers, how many slots they say are open, and how many tasks we have assigned.
|
||||
;; (Hashof TaskManagerID Nat)
|
||||
(define/query-hash task-managers (task-manager $id $slots) id slots
|
||||
#:on-add (log "JM learns that ~a has ~v slots" id slots))
|
||||
|
||||
(during (job $job-id $tasks)
|
||||
(field [requests-in-flight (hash)] ;; (Hashof ID Nat)
|
||||
[assignments (hash)]) ;; (Hashof ID ID) request ID to manager ID
|
||||
|
||||
;; to better understand the supply of slots for each task manager, keep track of the number
|
||||
;; of requested tasks that we have yet to hear back about
|
||||
(define (slots-available)
|
||||
(for/sum ([(id v) (in-hash (task-managers))])
|
||||
(max 0 (- v (hash-ref (requests-in-flight) id 0)))))
|
||||
|
||||
;; ID -> (U #f ID)
|
||||
(define (try-take-slot! me)
|
||||
(define mngr
|
||||
(for/first ([(id slots) (in-hash (task-managers))]
|
||||
#:when (positive? (- slots (hash-ref (requests-in-flight) id 0))))
|
||||
id))
|
||||
(when mngr
|
||||
(assignments (hash-set (assignments) me mngr))
|
||||
(requests-in-flight (hash-update (requests-in-flight) mngr add1 0)))
|
||||
mngr)
|
||||
|
||||
(know (slots (slots-available)))
|
||||
|
||||
(during (know (observe (slot-assignment (request-id $tid $who) _)))
|
||||
(on-start
|
||||
(react
|
||||
;; what if one manager gains a slot but another loses one, so n stays the same?
|
||||
(on (know (slots $n))
|
||||
#;(log "Dispatcher request ~a learns there are ~a slots" tid n)
|
||||
(unless (or (zero? n) (hash-has-key? (assignments) who))
|
||||
(define mngr (try-take-slot! who))
|
||||
(when mngr
|
||||
(stop-current-facet
|
||||
(log "Dispatcher assigns task ~a to ~a" tid mngr)
|
||||
(react (know (slot-assignment (request-id tid who) mngr)))
|
||||
(react
|
||||
(define waiting-for-answer (current-facet-id))
|
||||
(on (asserted (observe (task-performance mngr (task tid $x) _)))
|
||||
(react (on (asserted (task-performance mngr (task tid x) _))
|
||||
(log "Dispatcher sees answer for ~a" tid)
|
||||
(stop-facet waiting-for-answer))))
|
||||
(on-stop
|
||||
(requests-in-flight (hash-update (requests-in-flight) mngr sub1))))))))))
|
||||
(on-stop (assignments (hash-remove (assignments) who))))))
|
||||
|
||||
(during (observe (job-completion $job-id $tasks _))
|
||||
(log "JM receives job ~a" job-id)
|
||||
(define-values (ready not-ready) (partition task-ready? tasks))
|
||||
(field [ready-tasks ready]
|
||||
[waiting-tasks not-ready]
|
||||
(field [waiting-tasks not-ready]
|
||||
[tasks-in-progress 0])
|
||||
|
||||
(begin/dataflow
|
||||
(define slots (slots-available))
|
||||
(define-values (ts readys)
|
||||
(split-at/lenient (ready-tasks) slots))
|
||||
(for ([t ts])
|
||||
(on-start (for [(t ready)] (add-ready-task! t)))
|
||||
(on (realize (task-is-ready job-id $t))
|
||||
(perform-task t push-results))
|
||||
(unless (empty? ts)
|
||||
;; the empty? check may be necessary to avoid a dataflow loop
|
||||
(ready-tasks readys)))
|
||||
|
||||
;; Task -> Void
|
||||
(define (add-ready-task! t)
|
||||
;; TODO - use functional-queue.rkt from ../../
|
||||
(log "JM marks task ~a as ready" (task-id t))
|
||||
(ready-tasks (cons t (ready-tasks))))
|
||||
(realize! (task-is-ready job-id t)))
|
||||
|
||||
;; Task (ID TaskResult -> Void) -> Void
|
||||
;; Requires (task-ready? t)
|
||||
(define (perform-task t k)
|
||||
(react
|
||||
(define task-facet (current-facet-id))
|
||||
(on-start (tasks-in-progress (add1 (tasks-in-progress))))
|
||||
(on-stop (tasks-in-progress (sub1 (tasks-in-progress))))
|
||||
(match-define (task this-id desc) t)
|
||||
(log "JM begins on task ~a" this-id)
|
||||
|
||||
(field [task-mngr #f])
|
||||
(begin/dataflow
|
||||
;; n.b. cyclic data-flow dependency
|
||||
(unless (task-mngr)
|
||||
(define mngr
|
||||
(for/first ([(id slots) (in-hash (task-managers))]
|
||||
#:when (positive? (- slots (hash-ref (requests-in-flight) id 0))))
|
||||
id))
|
||||
(when mngr
|
||||
(take-slot! mngr)
|
||||
(react (stop-when (asserted (task-state mngr job-id this-id _))
|
||||
(received-answer! mngr)))
|
||||
(task-mngr mngr))))
|
||||
;; TODO - should respond if task manager dies
|
||||
(assert #:when (task-mngr)
|
||||
(task-assignment (task-mngr) job-id t))
|
||||
(on #:when (task-mngr)
|
||||
(asserted (task-state (task-mngr) job-id this-id $state))
|
||||
(match state
|
||||
[(or (== ACCEPTED)
|
||||
(== RUNNING))
|
||||
;; nothing to do
|
||||
(void)]
|
||||
[(== OVERLOAD)
|
||||
;; need to find a new task manager
|
||||
;; don't think we need a release-slot! here, because if we've heard back from a task manager,
|
||||
;; they should have told us a different slot count since we tried to give them work
|
||||
(log "JM overloaded manager ~a with task ~a" (task-mngr) this-id)
|
||||
(task-mngr #f)]
|
||||
[(finished results)
|
||||
(log "JM receives the results of task ~a" this-id)
|
||||
(stop-current-facet (k this-id results))]))))
|
||||
|
||||
(define (select-a-task-manager)
|
||||
(react
|
||||
(define req-id (gensym 'perform-task))
|
||||
(on (know (slot-assignment (request-id this-id req-id) $mngr))
|
||||
(assign-task mngr))))
|
||||
|
||||
;; ID -> ...
|
||||
(define (assign-task mngr)
|
||||
(define this-facet (current-facet-id))
|
||||
(react
|
||||
#;(define this-facet (current-facet-id))
|
||||
(on (retracted (task-manager mngr _))
|
||||
;; our task manager has crashed
|
||||
(stop-current-facet (select-a-task-manager)))
|
||||
(on-start
|
||||
(log "JM assigns task ~a to manager ~a" this-id mngr)
|
||||
(task-assigner t mngr
|
||||
(lambda ()
|
||||
;; need to find a new task manager
|
||||
;; don't think we need a release-slot! here, because if we've heard back from a task manager,
|
||||
;; they should have told us a different slot count since we tried to give them work
|
||||
(log "JM overloaded manager ~a with task ~a" mngr this-id)
|
||||
(stop-facet this-facet (select-a-task-manager)))
|
||||
(lambda (results)
|
||||
(log "JM receives the results of task ~a" this-id)
|
||||
(stop-facet task-facet (k (first this-id) results)))))))
|
||||
|
||||
(on-start (select-a-task-manager))))
|
||||
|
||||
;; ID Data -> Void
|
||||
;; Update any dependent tasks with the results of the given task, moving
|
||||
;; them to the ready queue when possible
|
||||
(define (push-results task-id data)
|
||||
(cond
|
||||
;; this is an interesting scenario wrt stop handlers running; this code is assuming
|
||||
;; it runs after the on-stop above that decrements `tasks-in-progress`
|
||||
[(and (zero? (tasks-in-progress))
|
||||
(empty? (ready-tasks))
|
||||
(empty? (waiting-tasks)))
|
||||
(log "JM finished with job ~a" job-id)
|
||||
(react (assert (job-finished job-id data)))]
|
||||
(react (assert (job-completion job-id tasks data)))]
|
||||
[else
|
||||
;; TODO - in MapReduce, there should be either 1 waiting task, or 0, meaning the job is done.
|
||||
(define still-waiting
|
||||
|
@ -390,8 +459,7 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
;; Job -> Void
|
||||
(define (spawn-client j)
|
||||
(spawn
|
||||
(assert j)
|
||||
(on (asserted (job-finished (job-id j) $data))
|
||||
(on (asserted (job-completion (job-id j) (job-tasks j) $data))
|
||||
(printf "job done!\n~a\n" data))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
|
@ -401,7 +469,7 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
(spawn
|
||||
(during (job-manager-alive)
|
||||
(during (task-manager $tm-id _)
|
||||
(define/query-set requests (task-assignment tm-id _ (task $tid _)) tid)
|
||||
(define/query-set requests (observe (task-performance tm-id (task $tid _) _)) tid)
|
||||
(field [high-water-mark 0])
|
||||
(on (asserted (task-manager tm-id $slots))
|
||||
(when (> slots (high-water-mark))
|
||||
|
@ -458,7 +526,7 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
|
||||
;; TaskTree -> (Listof Task)
|
||||
;; flatten a task tree by assigning job-unique IDs
|
||||
(define (task-tree->list tt)
|
||||
(define (task-tree->list tt job-id)
|
||||
(define-values (tasks _)
|
||||
;; TaskTree ID -> (Values (Listof Task) ID)
|
||||
;; the input id is for the current node of the tree
|
||||
|
@ -467,7 +535,7 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
[next-id 0])
|
||||
(match tt
|
||||
[(map-work _)
|
||||
(values (list (task next-id tt))
|
||||
(values (list (task (list next-id job-id) tt))
|
||||
(add1 next-id))]
|
||||
[(reduce-work left right)
|
||||
(define left-id (add1 next-id))
|
||||
|
@ -475,8 +543,8 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
(loop left left-id))
|
||||
(define-values (rights next)
|
||||
(loop right right-id))
|
||||
(values (cons (task next-id (reduce-work left-id right-id))
|
||||
(append lefts rights))
|
||||
(values (cons (task (list next-id job-id) (reduce-work left-id right-id))
|
||||
(append lefts rights))
|
||||
next)])))
|
||||
tasks)
|
||||
|
||||
|
@ -484,7 +552,7 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
(define (create-job in)
|
||||
(define job-id (gensym 'job))
|
||||
(define input-lines (sequence->list (in-lines in)))
|
||||
(define tasks (task-tree->list (create-task-tree input-lines)))
|
||||
(define tasks (task-tree->list (create-task-tree input-lines) job-id))
|
||||
(job job-id tasks))
|
||||
|
||||
;; String -> Job
|
||||
|
@ -514,7 +582,7 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
(task mid2 (map-work data2)))
|
||||
(check-true (id? left))
|
||||
(check-true (id? right))
|
||||
(check-equal? (set left right) (set mid1 mid2))
|
||||
(check-equal? (set left right) (set (first mid1) (first mid2)))
|
||||
(check-equal? (set data1 data2)
|
||||
(set "a b c" "d e f"))]
|
||||
[_
|
||||
|
@ -540,9 +608,12 @@ The JobManager then performs the job and, when finished, asserts (job-finished I
|
|||
;; expected:
|
||||
;; #hash((a . 5) (b . 5) (c . 2))
|
||||
|
||||
(spawn-client j)
|
||||
(spawn-client (file->job "lorem.txt"))
|
||||
(spawn-job-manager)
|
||||
(spawn-task-manager)
|
||||
(spawn-task-runner)
|
||||
(spawn-task-runner)
|
||||
(spawn-task-manager 2)
|
||||
(spawn-task-manager 3)
|
||||
(spawn-observer)
|
||||
|
||||
(module+ main
|
||||
(void))
|
||||
|
|
|
@ -0,0 +1,61 @@
|
|||
#lang syndicate
|
||||
|
||||
;; Expected Output:
|
||||
#|
|
||||
balance = 0
|
||||
balance = 5
|
||||
balance = 0
|
||||
JEEPERS
|
||||
know overdraft!
|
||||
balance = -1
|
||||
balance = -2
|
||||
no longer in overdraft
|
||||
balance = 8
|
||||
|#
|
||||
|
||||
(assertion-struct balance (v))
|
||||
(message-struct deposit (v))
|
||||
|
||||
(spawn
|
||||
;; Internal Events
|
||||
(message-struct new-transaction (old new))
|
||||
(assertion-struct overdraft ())
|
||||
|
||||
(field [account 0])
|
||||
|
||||
(assert (balance (account)))
|
||||
|
||||
(on (message (deposit $v))
|
||||
(define prev (account))
|
||||
(account (+ v (account)))
|
||||
(realize! (new-transaction prev (account))))
|
||||
|
||||
(on (realize (new-transaction $old $new))
|
||||
(when (and (negative? new)
|
||||
(not (negative? old)))
|
||||
(react
|
||||
;; (this print is to make sure only one of these facets is created)
|
||||
(printf "JEEPERS\n")
|
||||
(know (overdraft))
|
||||
(on (realize (new-transaction $old $new))
|
||||
(when (not (negative? new))
|
||||
(stop-current-facet))))))
|
||||
|
||||
(during (know (overdraft))
|
||||
(on-start (printf "know overdraft!\n"))
|
||||
(on-stop (printf "no longer in overdraft\n"))))
|
||||
|
||||
(spawn
|
||||
(on (asserted (balance $v))
|
||||
(printf "balance = ~a\n" v)))
|
||||
|
||||
(spawn*
|
||||
(send! (deposit 5))
|
||||
(flush!)
|
||||
(send! (deposit -5))
|
||||
(flush!)
|
||||
(send! (deposit -1))
|
||||
(flush!)
|
||||
(send! (deposit -1))
|
||||
(flush!)
|
||||
(send! (deposit 10)))
|
|
@ -0,0 +1,48 @@
|
|||
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam vehicula
|
||||
accumsan tristique. Integer sit amet sem metus. Nam porta tempus nisl ac
|
||||
ullamcorper. Nulla interdum ante ut odio ultricies lobortis. Nam sollicitudin
|
||||
lorem quis pellentesque consequat. Aenean pulvinar diam sed nulla semper, eget
|
||||
varius tortor faucibus. Nam sodales mattis elit, ac convallis sem pretium sed.
|
||||
Aliquam nibh velit, facilisis sit amet aliquam quis, dapibus vel mauris. Cras
|
||||
pharetra arcu tortor, id pharetra massa aliquet non. Maecenas elit libero,
|
||||
malesuada nec enim ut, ornare sagittis lectus. Praesent bibendum sed magna id
|
||||
euismod. Maecenas vulputate nunc mauris, a dignissim magna volutpat consectetur.
|
||||
Fusce malesuada neque sapien, sit amet ultricies urna finibus non. Fusce
|
||||
ultrices ipsum vel ligula eleifend, eget eleifend magna interdum. Curabitur
|
||||
semper quam nunc, sed laoreet ipsum facilisis at. Etiam ut quam ac eros
|
||||
ullamcorper mattis eget vel leo.
|
||||
|
||||
Integer ac ipsum augue. Ut molestie ac mi vel varius. Praesent at est et nulla
|
||||
facilisis viverra sit amet eu augue. Nullam diam odio, elementum vehicula
|
||||
convallis id, hendrerit non magna. Suspendisse porta faucibus feugiat. In
|
||||
rhoncus semper diam eu malesuada. Suspendisse ligula metus, rhoncus eget nunc
|
||||
et, cursus rutrum sem. Fusce iaculis commodo magna, vitae viverra arcu. Fusce et
|
||||
eros et massa sollicitudin bibendum. Etiam convallis, nibh accumsan porttitor
|
||||
sollicitudin, mauris orci consectetur nisl, sit amet venenatis nulla enim eget
|
||||
risus. Phasellus quam diam, commodo in sodales eget, scelerisque sed odio. Sed
|
||||
aliquam massa vel efficitur volutpat. Mauris ut elit dictum, euismod turpis in,
|
||||
feugiat lectus.
|
||||
|
||||
Vestibulum leo est, feugiat sit amet metus nec, ullamcorper commodo purus. Sed
|
||||
non mauris non tellus ullamcorper congue interdum et mauris. Donec sit amet
|
||||
mauris urna. Sed in enim nisi. Praesent accumsan sagittis euismod. Donec vel
|
||||
nisl turpis. Ut non efficitur erat. Vestibulum quis fermentum elit. Mauris
|
||||
molestie nibh posuere fringilla rutrum. Praesent mattis tortor sapien, semper
|
||||
varius elit ultrices in.
|
||||
|
||||
Etiam non leo lacus. Cras id tincidunt ante. Donec mattis urna fermentum ex
|
||||
elementum blandit. Sed ornare vestibulum nulla luctus malesuada. Maecenas
|
||||
pulvinar metus tortor. Sed dapibus enim vel sem bibendum, sit amet tincidunt
|
||||
ligula varius. Nullam vitae augue at dui blandit cursus. Suspendisse faucibus
|
||||
posuere luctus.
|
||||
|
||||
Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos
|
||||
himenaeos. Aenean suscipit diam eu luctus auctor. Donec non magna quis ex
|
||||
tincidunt condimentum. Ut porta maximus quam, non varius sem mattis eu. Fusce
|
||||
sit amet vestibulum libero. Aliquam vestibulum sagittis mi a pellentesque. Cras
|
||||
maximus cursus libero vitae porttitor. Aenean fermentum erat eget turpis mattis,
|
||||
quis commodo magna pharetra. Praesent eu hendrerit arcu. Proin mollis, sem ac
|
||||
accumsan dignissim, velit risus ultricies mauris, eu imperdiet dolor ipsum at
|
||||
augue. Fusce bibendum, tortor eget pulvinar auctor, leo mi volutpat urna, nec
|
||||
convallis sem quam non tellus. Vestibulum fermentum sodales faucibus. Nunc quis
|
||||
feugiat quam. Donec pulvinar feugiat mauris non porttitor.
|
|
@ -0,0 +1,19 @@
|
|||
#lang syndicate
|
||||
|
||||
;; Expected Output:
|
||||
#|
|
||||
received message bad
|
||||
realized good
|
||||
|#
|
||||
|
||||
(message-struct ping (v))
|
||||
|
||||
(spawn
|
||||
(on (realize (ping $v))
|
||||
(printf "realized ~a\n" v))
|
||||
(on (message (ping $v))
|
||||
(printf "received message ~a\n" v)
|
||||
(realize! (ping 'good))))
|
||||
|
||||
(spawn*
|
||||
(send! (ping 'bad)))
|
|
@ -60,7 +60,10 @@
|
|||
(quit))]
|
||||
[_ #f]))
|
||||
|
||||
(message (set-timer 'tick 1000 'relative))
|
||||
(actor (lambda (e s) (quit))
|
||||
#f
|
||||
(message (set-timer 'tick 1000 'relative)))
|
||||
|
||||
(actor ticker
|
||||
1
|
||||
(patch-seq (sub (observe (set-timer ? ? ?)))
|
||||
|
|
|
@ -3,3 +3,8 @@
|
|||
(define racket-launcher-names '("syndicate-broker" "syndicate-render-msd"))
|
||||
(define racket-launcher-libraries '("broker/server.rkt" "trace/render-msd.rkt"))
|
||||
(define test-include-paths '("syndicate/tests"))
|
||||
(define test-omit-paths
|
||||
'(;; Sam: example-plain is interactive, I think
|
||||
"examples/example-plain.rkt"
|
||||
;; Sam: for whatever reason I get a failure to load libcrypto for f-to-c
|
||||
"examples/actor/f-to-c.rkt"))
|
||||
|
|
|
@ -13,6 +13,7 @@
|
|||
(require (for-syntax syntax/parse))
|
||||
(require rackunit)
|
||||
(require racket/engine)
|
||||
(require racket/exn)
|
||||
|
||||
(define mt-scn (scn trie-empty))
|
||||
|
||||
|
@ -289,7 +290,7 @@
|
|||
;; leaf behavior function
|
||||
(define (actor-behavior e s)
|
||||
(when e
|
||||
(with-handlers ([exn:fail? (lambda (e) (eprintf "exception: ~v\n" e) (quit #:exception e (list)))])
|
||||
(with-handlers ([exn:fail? (lambda (e) (printf "exception: ~v\n" (exn->string e)) (quit #:exception e (list)))])
|
||||
(match-define (actor-state π-old fts) s)
|
||||
(define-values (actions next-fts)
|
||||
(for/fold ([as '()]
|
||||
|
@ -545,7 +546,7 @@
|
|||
;; boot-actor : actor Γ -> Action
|
||||
(define (boot-actor a Γ)
|
||||
(with-handlers ([exn:fail? (lambda (e)
|
||||
(eprintf "booting actor died with: ~v\n" e)
|
||||
(printf "booting actor died with: ~a\n" (exn->string e))
|
||||
#f)])
|
||||
(match a
|
||||
[`(spawn ,O ...)
|
||||
|
|
|
@ -14,6 +14,7 @@
|
|||
limit-patch
|
||||
patch-step
|
||||
patch-step*
|
||||
patch-prepend
|
||||
compute-aggregate-patch
|
||||
apply-patch
|
||||
update-interests
|
||||
|
@ -125,6 +126,13 @@
|
|||
(define (patch-step* p keys)
|
||||
(foldl (lambda (key p) (patch-step p key)) p keys))
|
||||
|
||||
;; (U Sigma OpenParenthesis) Trie -> Trie
|
||||
;; Prepend both added and removed sets
|
||||
(define (patch-prepend key p)
|
||||
(match-define (patch added removed) p)
|
||||
(patch (trie-prepend key added)
|
||||
(trie-prepend key removed)))
|
||||
|
||||
;; Entries labelled with `label` may already exist in `base`; the
|
||||
;; patch `p` MUST already have been limited to add only where no
|
||||
;; `label`-labelled portions of `base` exist, and to remove only where
|
||||
|
|
|
@ -3,27 +3,578 @@
|
|||
@(require (for-label (except-in racket process field)
|
||||
syndicate/actor))
|
||||
|
||||
@title{High Level Syntax for Syndicate}
|
||||
@title{Dataspace Programming with Syndicate}
|
||||
|
||||
|
||||
@defmodule[syndicate/actor]
|
||||
|
||||
@section{Instantaneous Actions (I)}
|
||||
@section{Overview}
|
||||
|
||||
@defform[(spawn I ...)]{
|
||||
Spawns an actor that executes each instantaneous action @racket[I] in
|
||||
sequence.}
|
||||
Syndicate is an actor language where all communication occurs through a tightly
|
||||
controlled shared memory, dubbed the @emph{dataspace}. The values in the
|
||||
dataspace are called @emph{assertions}, representing the information that the
|
||||
actors in the system are currently sharing with each other. Assertions are
|
||||
@emph{read-only} and @emph{owned} by the actor that entered them into the
|
||||
dataspace. Only the originating actor has permission to withdraw an assertion.
|
||||
Assertions are linked to the lifetime of their actor, and are withdrawn from the
|
||||
dataspace when that actor exits, either normally or via exception.
|
||||
|
||||
@defform[(dataspace I ...)]{
|
||||
Spawns a dataspace as a child of the dataspace enclosing the executing actor. The
|
||||
new dataspace executes each instantaneous action @racket[I].}
|
||||
To respond to assertions in the dataspace, an actor expresses an @emph{interest}
|
||||
in the shape of assertions it wishes to receive. An interest is an assertion
|
||||
constructed with @racket[observe] and wildcards where the actor wishes to
|
||||
receive any matching assertion. When an actor makes an assertion of interest,
|
||||
the dataspace dispatches the set of all matching assertions to that actor.
|
||||
Moreover, the dataspace keeps the actor @emph{up-to-date}, informing it when a
|
||||
new assertion appears matching its interest, as well as when a matching
|
||||
assertion disappears from the dataspace. Thus, dataspaces implement a form of
|
||||
publish/subscribe communication.
|
||||
|
||||
@defproc[(send! [v any/c]
|
||||
[#:meta-level level natural-number/c 0])
|
||||
@;{would be nice to link pub/sub}
|
||||
|
||||
In addition to assertions, dataspaces support instantaneous @racket[message]
|
||||
broadcast. At the time a message is sent, all actors with a matching interest
|
||||
receive notification.
|
||||
|
||||
In response to an event, that is, a message broadcast or assertion
|
||||
appearance/disappearance matching an expressed interest, a Syndicate actor may
|
||||
take any of the following actions:
|
||||
@itemlist[
|
||||
@item{Updating its internal state;}
|
||||
@item{Making or withdrawing assertions;}
|
||||
@item{Sending broadcast messages;}
|
||||
@item{Spawning additional actors;}
|
||||
@item{Exiting;}
|
||||
@item{Or any combination of these.}
|
||||
]
|
||||
|
||||
Thus, each individual Syndicate actor has three fudamental concerns:
|
||||
|
||||
@itemlist[
|
||||
@item{Defining local state and updating it in response to events;}
|
||||
@item{Publishing aspects of local state/knowledge as assertions; and}
|
||||
@item{Reacting to relevant assertions and messages.}
|
||||
]
|
||||
|
||||
Each concern is addressed by a separate language construct, which are
|
||||
collectively dubbed @emph{endpoints}:
|
||||
|
||||
@itemlist[
|
||||
@item{The @racket[field]s of an actor hold its state;}
|
||||
@item{An actor publishes information using @racket[assert]; and}
|
||||
@item{An event-handler endpoint uses @racket[on] to define reactions to
|
||||
particular messages and assertions.}
|
||||
]
|
||||
|
||||
Endpoints are tied together via @emph{dataflow}. Thus, the assertions of an
|
||||
actor automatically reflect the current value of its fields.
|
||||
|
||||
Implementing an actor's role in a particular conversation typically involves
|
||||
some combination of these behaviors; a @emph{facet} is a collection of related
|
||||
endpoints constituting the actor's participation in a particular conversation.
|
||||
|
||||
Each actor starts with a single facet, and may add new facets or terminate
|
||||
current ones in response to events. The facets of an actor form a tree, where
|
||||
the parent of a particular facet is the facet in which it was created. The tree
|
||||
structure affects facet shutdown; terminating a facet also terminates all of its
|
||||
descendants.
|
||||
|
||||
To recap: an actor is a tree of facets, each of which comprises of a collection
|
||||
of endpoints.
|
||||
|
||||
@section{Programming Syndicate Actors with Facets}
|
||||
|
||||
Code within Syndicate actors executes in one of two contexts:
|
||||
@itemlist[
|
||||
@item{The @emph{endpoint-installation} context occurs during the creation of a
|
||||
new facet, when all of its endpoints are created.}
|
||||
@item{The @emph{script} context occurs during the execution of event handlers,
|
||||
and permits creating/terminating facets, sending messages, and spawning
|
||||
actors.}
|
||||
]
|
||||
|
||||
The actions permitted by the two contexts are mutually exclusive, and trying to
|
||||
perform an action in the wrong context will give rise to a run-time
|
||||
@racket[error].
|
||||
|
||||
Within the following descriptions, we use @emph{EI} as a shorthand for
|
||||
expressions that execute in an endpoint-installation context and @emph{S} for
|
||||
expressions in a script context.
|
||||
|
||||
@subsection{Script Actions: Starting and Stopping Actors and Facets}
|
||||
|
||||
@defform[(spawn maybe-name
|
||||
maybe-assertions
|
||||
maybe-linkage
|
||||
EI ...+)
|
||||
#:grammar
|
||||
[(maybe-name (code:line)
|
||||
(code:line #:name name-expr))
|
||||
(maybe-assertions (code:line)
|
||||
(code:line #:assertions assertion-expr)
|
||||
(code:line #:assertions* assertions-expr))
|
||||
(maybe-linkage (code:line)
|
||||
(code:line #:linkage [linkage-expr ...]))]
|
||||
#:contracts
|
||||
([assertion-expr any/c]
|
||||
[assertions-expr trie?])]{
|
||||
Spawn an actor with a single inital facet whose endpoints are installed by
|
||||
@racket[EI]. That is, there is an implicit @racket[react] around @racket[EI
|
||||
...]. Allowed within a script and module-top-level.
|
||||
|
||||
An optionally provided @racket[name-expr] is associated with the created actor.
|
||||
The name is only used for error and log messages, thus is mainly useful for
|
||||
debugging.
|
||||
|
||||
The actor may optionally be given some initial assertions, which come into being
|
||||
at the same time as the actor. (Otherwise, the actor spawns, then boots its
|
||||
initial facet(s), then establishes any ensuing assertions.) When
|
||||
@racket[assertion-expr] is provided, the actors initial assertions are the
|
||||
result of interpreting the expression as a @racket[trie] pattern, with
|
||||
@racket[?] giving rise to infinte sets. On the other hand,
|
||||
@racket[assertions-expr] may be used to specify an entire set of initial
|
||||
assertions as an arbitrary @racket[trie].
|
||||
|
||||
The optional @racket[linkage-expr]s are executed during facet startup; your
|
||||
simple documentation author is not sure why they are useful, as opposed to just
|
||||
putting them in the body of the @racket[spawn].
|
||||
}
|
||||
|
||||
@defform[(react EI ...+)]{
|
||||
Create a new facet in the current actor whose endpoints are the result of
|
||||
executing @racket[EI ...]. Allowed within a script.
|
||||
}
|
||||
|
||||
@defform[(stop-facet fid S ...)
|
||||
#:contracts ([fid facet-id?])]{
|
||||
Terminate the facet with ID @racket[fid], as well as all of its children.
|
||||
Allowed within a script.
|
||||
|
||||
The optional script actions @racket[S ...] function like a continuation. They
|
||||
run @emph{after} the facet and all of its children finish shutting down, i.e.
|
||||
after all @racket[stop] handlers have executed. Moreover, @racket[S ...] runs in
|
||||
the context of the @emph{parent} of @racket[fid]. Thus, any facet created by the
|
||||
script survives termination and will have @racket[fid]'s parent as its own
|
||||
parent.
|
||||
|
||||
Note that @racket[fid] must be an ancestor of the current facet.
|
||||
}
|
||||
|
||||
@defform[(stop-current-facet S ...)]{
|
||||
Stop the currently running facet; equivalent to
|
||||
@racketblock[(stop-facet (current-facet-id) S ...)].
|
||||
|
||||
Allowed within a script.
|
||||
}
|
||||
|
||||
@defproc[(current-facet-id) facet-id?]{
|
||||
Retrieves the ID of the currently running facet.
|
||||
}
|
||||
|
||||
@defproc[(send! [v any/c])
|
||||
void?]{
|
||||
Sends a message with body @racket[v]. The message is sent @racket[level]
|
||||
dataspaces removed from the dataspace containing the actor performing the
|
||||
@racket[send!].}
|
||||
Sends a @racket[message] with body @racket[v].
|
||||
|
||||
Allowed within a script.
|
||||
}
|
||||
|
||||
@subsection{Installing Endpoints}
|
||||
|
||||
@defform[(field [x init-expr maybe-contract] ...+)
|
||||
#:grammar
|
||||
[(maybe-contract (code:line)
|
||||
(code:line #:contract in)
|
||||
(code:line #:contract in out))]]{
|
||||
Define fields for the current facet. Each @racket[x] is bound to a handle
|
||||
function: calling @racket[(x)] retrieves the current value, while @racket[(x v)]
|
||||
sets the field to @racket[v].
|
||||
|
||||
Fields may optionally have a contract; the @racket[in] contract is applied when
|
||||
writing to a field, while the (optional) @racket[out] contract applies when
|
||||
reading a value from a field.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(assert maybe-pred exp)
|
||||
#:grammar
|
||||
[(maybe-pred (code:line)
|
||||
(code:line #:when pred))]
|
||||
#:contracts ([pred boolean?])]{
|
||||
Make the assertion @racket[exp] while the enclosing facet is active. Publishing
|
||||
the assertion can be made conditional on a boolean expression by supplying a
|
||||
@racket[#:when] predicate, in which case the assertion is made only when
|
||||
@racket[pred] evaluates to a truthy value.
|
||||
|
||||
If the expression @racket[exp] refers to any fields, then the assertion created
|
||||
by the endpoint is automatically kept up-to-date each time any of those fields
|
||||
is updated. More specifically, the will issue a patch retracting the assertion
|
||||
of the previous value, replacing it with the results of reevaluating
|
||||
@racket[exp] with the current values of each field.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[#:literals (message asserted retracted _ $ ?)
|
||||
(on maybe-pred event-description
|
||||
S ...+)
|
||||
|
||||
#:grammar
|
||||
[(maybe-pred (code:line)
|
||||
(code:line #:when pred))
|
||||
(event-description (code:line (message pattern))
|
||||
(code:line (asserted pattern))
|
||||
(code:line (retracted pattern)))
|
||||
(pattern (code:line _)
|
||||
(code:line $id)
|
||||
(code:line ($ id pattern))
|
||||
(code:line (? pred pattern))
|
||||
(code:line (ctor pattern ...))
|
||||
(code:line expr))]
|
||||
#:contracts ([pred boolean?])]{
|
||||
Creates an event handler endpoint that responds to the event specified by
|
||||
@racket[event-description]. Executes the body @racket[S ...] for each matching
|
||||
event, with any pattern variables bound to their matched value.
|
||||
|
||||
The actor will make an assertion of interest in events that could match
|
||||
@racket[event-description]. Like with @racket[assert], the interest will be
|
||||
refreshed any time a field referenced within the @racket[event-description]
|
||||
pattern changes.
|
||||
|
||||
The event handler can optionally be made conditional on a boolean expression by
|
||||
supplying a @racket[#:when] predicate, in which case the endpoint only reacts to
|
||||
events, and only expresses the corresponding assertion of interest, when
|
||||
@racket[pred] evaluates to a truthy value.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
|
||||
Event descriptions have one of the following forms:
|
||||
@itemlist[
|
||||
@item{@racket[(message pattern)] activates when a message is received with a
|
||||
body matching @racket[pat].}
|
||||
|
||||
@item{@racket[(asserted pattern)] activates when a patch is received with an
|
||||
added assertion matching @racket[pattern]. Additionally, if the actor has
|
||||
@emph{already} received a patch with matching assertions, which can occur if
|
||||
multiple facets in a single actor have overlapping interests, then the
|
||||
endpoint will match those assertions upon facet start up.}
|
||||
|
||||
@item{@racket[(retracted pat)] is similar to @racket[asserted], but for
|
||||
assertions withdrawn in a patch.}
|
||||
|
||||
@;{@item{@racket[(rising-edge expr)] activates when @racket[expr] evaluates to
|
||||
anything besides @racket[#f] (having previously evaluated to @racket[#f]). The
|
||||
condition is checked after each received event.}}
|
||||
]
|
||||
|
||||
While patterns have the following meanings:
|
||||
@itemlist[
|
||||
@item{@racket[_] matches anything.}
|
||||
|
||||
@item{@racket[$id] matches anything and binds the value to @racket[id].}
|
||||
|
||||
@item{@racket[($ id pattern)] matches values that match @racket[pattern] and
|
||||
binds the value to @racket[id].}
|
||||
|
||||
@item{@racket[(? pred pattern)] matches values where @racket[(pred val)] is not
|
||||
@racket[#f] and that match @racket[pattern].}
|
||||
|
||||
@item{@racket[(ctor pat ...)] matches values built by applying the constructor
|
||||
@racket[ctor] to values matching @racket[pat ...]. @racket[ctor] is usually
|
||||
a @racket[struct] name.}
|
||||
|
||||
@item{@racket[expr] patterns match values that are @racket[equal?] to
|
||||
@racket[expr].}
|
||||
]
|
||||
}
|
||||
|
||||
@defform[(during pattern EI ...+)]{
|
||||
Engage in behavior for the duration of a matching assertion. Roughly equivalent
|
||||
to:
|
||||
|
||||
@racketblock[
|
||||
(on (asserted pattern)
|
||||
(react
|
||||
EI ...
|
||||
(on (retracted inst-pattern)
|
||||
(stop-current-facet))))]
|
||||
|
||||
where @racket[inst-pattern] is the @racket[pattern] with variables instantiated
|
||||
to their matching values.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(during/spawn pattern
|
||||
maybe-actor-wrapper
|
||||
maybe-name
|
||||
maybe-assertions
|
||||
maybe-parent-let
|
||||
maybe-on-crash
|
||||
EI ...)
|
||||
#:grammar
|
||||
[(maybe-actor-wrapper (code:line)
|
||||
(code:line #:spawn wrapper-stx))
|
||||
(maybe-parent-let (code:line)
|
||||
(code:line #:let [x expr] ...))
|
||||
(maybe-on-crash (code:line)
|
||||
(code:line #:on-crash on-crash-expr))]]{
|
||||
Like @racket[during], but in addition to creating a new facet for each matching
|
||||
assertion, @racket[spawn]s a new actor. The difference is primarily relevant for
|
||||
error propagation; an exception inside @racket[during] causes the entire actor
|
||||
to crash, while an exception inside @racket[during/spawn] crashes only the newly
|
||||
spawned actor.
|
||||
|
||||
The assertion triggering the @racket[during/spawn] may disappear @emph{before}
|
||||
the spawned actor boots, in which case it fails to see the retraction event. To
|
||||
avoid potential glitches, the @emph{spawning} actor maintains an assertion that
|
||||
lets the @racket[spawned] actor know whether the originial assertion still
|
||||
exists.
|
||||
|
||||
The @racket[maybe-name] and @racket[maybe-assertions] have the same meaning they
|
||||
do for @racket[spawn], applied to the newly spawned actor.
|
||||
|
||||
The @racket[wrapper-stx] serves as an interposition point; it may be provided to
|
||||
change the meaning of "spawning an actor" in response to an assertion. By
|
||||
default, it is @racket[#'spawn].
|
||||
|
||||
The optional @racket[#:let] clauses can be used to read the values of fields in
|
||||
the @emph{spawning} actor so that they can be used in the @emph{spawned} actor.
|
||||
Otherwise, the spawned actor has no access to the parent's fields, and trying to
|
||||
read or write to such a field will cause a runtime @racket[error].
|
||||
|
||||
The @racket[on-crash-expr] provides a hook for script actions that can be
|
||||
performed in the @emph{spawning} actor if the @emph{spawned} actor crashes.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(stop-when maybe-pred event-description S ...)
|
||||
#:grammar
|
||||
[(maybe-pred (code:line)
|
||||
(code:line #:when pred))]
|
||||
#:contracts ([pred boolean?])]{
|
||||
Stop the current facet when an event matching @racket[event-description] occurs.
|
||||
Roughly equivalent to
|
||||
@racketblock[
|
||||
(on event-description
|
||||
(stop-current-facet S ...))]
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@subsection{Handling Facet Startup and Shutdown}
|
||||
|
||||
In addition to external events, such as assertion (dis)appearance and message
|
||||
broadcast, facets can react to their own startup and shutdown. This provides a
|
||||
handy way to perform initialization, cleanup, as well as setting up and tearing
|
||||
down resources.
|
||||
|
||||
@defform[(on-start S ...)]{
|
||||
Perform the script actions @racket[S ...] upon facet startup.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(on-stop S ...)]{
|
||||
Perform the script actions @racket[S ...] upon facet shutdown.
|
||||
|
||||
The script @racket[S ...] differs from that of @racket[stop-facet] in that it
|
||||
executes in the context of the terminating facet, not its parent. Thus, any
|
||||
facets created in @racket[S ...] will start up and then immediately shut down.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
Note that a single facet may have any number of @racket[on-start] and
|
||||
@racket[on-stop] handlers, which do not compete with each other. That is, each
|
||||
@racket[on-start] handler runs during facet startup and, likewise, each
|
||||
@racket[on-stop] during facet shutdown.
|
||||
|
||||
@subsection{Streaming Query Fields}
|
||||
|
||||
Syndicate actors often aggregate information about current assertions as part of
|
||||
their local state, that is, in a @racket[field]. Since these patterns are
|
||||
exceedingly common, Syndicate provides a number of forms for defining fields
|
||||
that behave as streaming queries over the assertions in the dataspace.
|
||||
|
||||
@defform[(define/query-set name pattern expr maybe-on-add maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Define a @racket[field] called @racket[name] that is the @racket[set] of values
|
||||
extracted from assertions matching @racket[pattern]. Each value is extracted
|
||||
from a matching assertion by evaluating @racket[expr], which may refer to
|
||||
variables bound by @racket[pattern].
|
||||
|
||||
The query set expands to roughly the following code:
|
||||
@racketblock[
|
||||
(begin
|
||||
(field [name (set)])
|
||||
(on (asserted pattern)
|
||||
(name (set-add (name) expr)))
|
||||
(on (retracted pattern)
|
||||
(name (set-remove (name) expr))))]
|
||||
|
||||
The optional @racket[on-add-expr] is performed inside the @racket[on asserted]
|
||||
handler, while @racket[on-remove-expr] runs in the @racket[on retracted]
|
||||
handler.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(define/query-hash name pattern key-expr value-expr
|
||||
maybe-on-add
|
||||
maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Define a @racket[field] called @racket[name] that is a @racket[hash] based on
|
||||
assertions matching @racket[pattern]. Each matching assertion establishes a key
|
||||
in the hash based on @racket[key-expr] whose value is the result of
|
||||
@racket[value-expr], with each expression referring to variables bound by
|
||||
@racket[pattern]. When a matching assertion disappears from the dataspace, the
|
||||
associated key is removed from the hash.
|
||||
|
||||
The optional @racket[maybe-on-add] and @racket[maybe-on-expr] behave the same
|
||||
way they do for @racket[define/query-set].
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(define/query-value name absent-expr pattern expr
|
||||
maybe-on-add
|
||||
maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Define a @racket[field] called @racket[name] whose value is based on the
|
||||
presence of an assertion matching @racket[pattern] in the dataspace. When such
|
||||
an assertion is present, the value of the @racket[name] field is the result of
|
||||
evaluating @racket[expr], which may refer to @racket[pattern]. When no such
|
||||
assertion exists, including initially, the value of @racket[name] is the result
|
||||
of @racket[absent-expr].
|
||||
|
||||
The optional @racket[maybe-on-add] and @racket[maybe-on-expr] behave the same
|
||||
way they do for @racket[define/query-set].
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(define/query-count name pattern key-expr
|
||||
maybe-on-add
|
||||
maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Define a @racket[field] called @racket[name] whose value is a @racket[hash]
|
||||
counting occurrences of matching assertions in the dataspace. More precisely,
|
||||
for each assertion @racket[pattern], evaluating @racket[key-expr] determines a
|
||||
key in the hash; the value for that key is incremented when the assertion
|
||||
appears and decremented when it disappears. When the count associated with a
|
||||
particular key falls to @racket[0], that key is removed from the hash.
|
||||
|
||||
The optional @racket[maybe-on-add] and @racket[maybe-on-expr] behave the same
|
||||
way they do for @racket[define/query-set].
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@subsection{Generalizing Dataflow}
|
||||
|
||||
The dataflow mechanism that automatically refreshes @racket[assert] endpoints
|
||||
when a referenced field changes may be used to react to local state updates in
|
||||
arbitrary ways using @racket[begin/dataflow].
|
||||
|
||||
@defform[(begin/dataflow S ...+)]{
|
||||
Evaluate and perform the script actions @racket[S ...] during facet startup, and
|
||||
then again each time a field referenced by the script updates.
|
||||
|
||||
Conceptually, @racket[begin/dataflow] may be thought of as an event handler
|
||||
endpoint in the vein of @racket[on], where the event of interest is @emph{update
|
||||
of local state}.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
@defform[(define/dataflow name expr maybe-default)
|
||||
#:grammar
|
||||
[(maybe-default (code:line)
|
||||
(code:line #:default default-expr))]]{
|
||||
Define a @racket[field] named @racket[name], whose value is reevaluated to the
|
||||
result of @racket[expr] each time any referenced field changes.
|
||||
|
||||
The value of @racket[name] is either @racket[#f] or, if provided,
|
||||
@racket[default-expr]. This initial value is observable for a short time during
|
||||
facet startup.
|
||||
|
||||
Note that when a field referenced by @racket[expr] changes, there may be some
|
||||
time before @racket[name] refreshes, during which "stale" values may be read
|
||||
from the field.
|
||||
|
||||
Allowed within an endpoint installation context.
|
||||
}
|
||||
|
||||
|
||||
@subsection{Generalizing Actor-Internal Communication}
|
||||
|
||||
Talk about internal assertions and messages.
|
||||
|
||||
@subsection{Nesting Dataspaces}
|
||||
|
||||
Nested dataspaces, inbound and outbound assertions, quit-datapace.
|
||||
|
||||
@defform[(dataspace S ...)]{
|
||||
Spawns a dataspace as a child of the dataspace enclosing the executing actor.
|
||||
The new dataspace executes each action @racket[S].
|
||||
|
||||
Allowed within a script.
|
||||
}
|
||||
|
||||
|
||||
@section{@hash-lang[] @racket[syndicate] Programs}
|
||||
|
||||
In a @hash-lang[] @racket[syndicate] program, the results of top-level
|
||||
expressions define the initial group of actors in the dataspace. That is,
|
||||
evaluating @racket[spawn] or @racket[dataspace] in the context of the module
|
||||
top-level adds that actor specification to the initial dataspace of the program.
|
||||
For example, a module such as:
|
||||
|
||||
@codeblock[#:line-numbers 0]|{
|
||||
#lang syndicate
|
||||
|
||||
(define (spawn-fun)
|
||||
(spawn ...))
|
||||
|
||||
(spawn ...)
|
||||
|
||||
(spawn-fun)
|
||||
}|
|
||||
|
||||
launches a syndicate program with two initial actors, one the result of the
|
||||
@racket[spawn] expression on line 5 and one the result of evaluating the
|
||||
@racket[spawn] expresion on line 3 during the course of calling
|
||||
@racket[spawn-fun] on line 7.
|
||||
|
||||
The initial dataspace is referred to as the @emph{ground} dataspace, and it
|
||||
plays a special role in Syndicate programming; see below.
|
||||
|
||||
@section{Interacting with the Outside World}
|
||||
|
||||
ground dataspace, drivers, etc.
|
||||
|
||||
@section{Actors with an Agenda}
|
||||
|
||||
Here we talk about @racket[spawn*] and @racket[react/suspend].
|
||||
|
||||
@section{Odds and Ends}
|
||||
|
||||
@defproc[(assert! [v any/c]
|
||||
[#:meta-level level natural-number/c 0])
|
||||
|
@ -39,8 +590,6 @@ distance from the dataspace containing the enclosing actor.}
|
|||
Retracts any assertions made by the immediately enclosing actor at
|
||||
@racket[level] dataspaces above the enclosing dataspace of the form @racket[v].}
|
||||
|
||||
@section{Ongoing Behaviors (O)}
|
||||
|
||||
@defform[(state maybe-init (maybe-bindings O ...) ([E I ...] ...))
|
||||
#:grammar
|
||||
[(maybe-init (code:line)
|
||||
|
@ -102,79 +651,3 @@ termination event but before the @racket[until] actor exits.}
|
|||
#:contracts ([id identifier?])]{
|
||||
The @racket[forever] behavior is analogous to a @racket[state] form with no
|
||||
termination events.}
|
||||
|
||||
@defform[(during pat O ...)]{
|
||||
Runs the behaviors @racket[O ...] for the duration of each assertion matching
|
||||
@racket[pat].
|
||||
|
||||
Roughly equivalent to
|
||||
@racket[(on (asserted pat)
|
||||
(until (retracted pat)
|
||||
O ...))]
|
||||
where the @racket[pat] in the @racket[until] clause is specialized to the actual
|
||||
value matched by @racket[pat] in the @racket[asserted] clause.
|
||||
}
|
||||
|
||||
@defform[(assert maybe-pred exp maybe-level)
|
||||
#:grammar
|
||||
[(maybe-pred (code:line)
|
||||
(code:line #:when pred))
|
||||
(maybe-level (code:line)
|
||||
(code:line #:meta-level level))]
|
||||
#:contracts ([pred boolean?]
|
||||
[level natural-number/c])]{
|
||||
Makes the assertion @racket[exp] while the enclosing actor is running. If a
|
||||
@racket[#:when] predicate is given, the assertion is made conditionally on the
|
||||
predicate expression evaluating to true.}
|
||||
|
||||
@defform[(on E
|
||||
I ...)]{
|
||||
When the event @racket[E] becomes active, executes the instantaneous actions
|
||||
@racket[I ...] in the body. The result of the final action is the result of the
|
||||
entire behavior.}
|
||||
|
||||
@section{Events (E)}
|
||||
|
||||
@defform[(message pat)]{
|
||||
Activates when a message is received with a body matching @racket[pat].
|
||||
The message event establishes the enclosing actor's interest in @racket[pat].}
|
||||
|
||||
@defform[(asserted pat)]{
|
||||
Activates when a patch is received with an added assertion matching
|
||||
@racket[pat]. Establishes the enclosing actor's interest in @racket[pat].}
|
||||
|
||||
@defform[(retracted pat)]{
|
||||
Similar to @racket[asserted], except for assertions removed in a patch.}
|
||||
|
||||
@defform[(rising-edge expr)]{
|
||||
Activates when @racket[expr] evaluates to anything besides @racket[#f] (having
|
||||
previously evaluated to @racket[#f]). The condition is checked after each
|
||||
received event, corresponding to after each instantaneous action is executed.}
|
||||
|
||||
@section{Patterns}
|
||||
|
||||
@(racketgrammar
|
||||
pat
|
||||
(code:line)
|
||||
(code:line _)
|
||||
(code:line $id)
|
||||
(code:line ($ id pat))
|
||||
(code:line (? pred pat))
|
||||
(code:line (ctor pat ...))
|
||||
(code:line expr))
|
||||
|
||||
@racket[_] matches anything.
|
||||
|
||||
@racket[$id] matches anything and binds the value to @racket[id].
|
||||
|
||||
@racket[($ id pat)] matches values that match @racket[pat] and binds the value
|
||||
to @racket[id].
|
||||
|
||||
@racket[(? pred pat)] matches values where @racket[(pred val)] is not
|
||||
@racket[#f] and that match @racket[pat].
|
||||
|
||||
@racket[(ctor pat ...)] matches values built by applying the constructor
|
||||
@racket[ctor] to values matching @racket[pat ...].
|
||||
|
||||
@racket[expr] patterns match values that are exactly equal to @racket[expr].
|
||||
|
||||
|
|
|
@ -1,7 +1,8 @@
|
|||
#lang syndicate/test
|
||||
|
||||
;; Reflects the current behavior of the little implementation,
|
||||
;; but quite possibly *not* what should happen
|
||||
;; The facet in the on-stop should immediately die and its assertion should never be visible.
|
||||
;; Pretty sure the little implementation gets that wrong.
|
||||
;; the trace does not have a way of saying there should never be a "here" assertion
|
||||
|
||||
(spawn
|
||||
(on-stop (react (assert (outbound "here"))))
|
||||
|
@ -9,4 +10,4 @@
|
|||
|
||||
(spawn (on-start (send! "stop")))
|
||||
|
||||
(trace (assertion-added (outbound "here")))
|
||||
(trace (message "stop"))
|
||||
|
|
|
@ -5,6 +5,10 @@
|
|||
;; dubious behavior by little implementation;
|
||||
;; create new facets from more nested facets
|
||||
|
||||
;; The facet in the on-stop should immediately die and its assertion should never be visible.
|
||||
;; Pretty sure the little implementation gets that wrong.
|
||||
;; the trace does not have a way of saying there should never be an "inner" assertion
|
||||
|
||||
(spawn (on-start
|
||||
(react (on-stop
|
||||
(react (assert (outbound "inner"))))))
|
||||
|
@ -13,4 +17,4 @@
|
|||
|
||||
(spawn (on-start (send! "stop")))
|
||||
|
||||
(trace (assertion-added (outbound "inner")))
|
||||
(trace (message "stop"))
|
||||
|
|
|
@ -1,5 +1,7 @@
|
|||
#lang racket/base
|
||||
|
||||
(provide start-tracing!)
|
||||
|
||||
(require racket/match)
|
||||
(require racket/set)
|
||||
(require racket/string)
|
||||
|
@ -12,7 +14,7 @@
|
|||
|
||||
(define-logger syndicate/trace/msd)
|
||||
|
||||
(let ((output-filename (getenv "SYNDICATE_MSD")))
|
||||
(define (start-tracing! output-filename)
|
||||
(when output-filename
|
||||
(define names (make-hash (list (cons '() "'ground"))))
|
||||
(define (open-output cause)
|
||||
|
@ -104,3 +106,5 @@
|
|||
(loop)))))
|
||||
(channel-get ch)
|
||||
(current-trace-procedures (cons msd-trace (current-trace-procedures))))))
|
||||
|
||||
(start-tracing! (getenv "SYNDICATE_MSD"))
|
||||
|
|
|
@ -0,0 +1,11 @@
|
|||
pan : pan.c
|
||||
gcc -o pan pan.c
|
||||
|
||||
pan.c : leader-and-seller.pml
|
||||
spin -a leader-and-seller.pml
|
||||
|
||||
# -a to analyze, -f for (weak) fairness
|
||||
# -n to elide report of unreached states
|
||||
# -N spec-name to verify a particular specification
|
||||
check: pan
|
||||
./pan -a -f -n
|
|
@ -1,27 +0,0 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U (Observe (Tuple String ★)) (Tuple String Int)))
|
||||
|
||||
(dataspace ds-type
|
||||
|
||||
(spawn ds-type
|
||||
(facet _
|
||||
(fields [the-thing Int 0])
|
||||
(assert (tuple "the thing" (ref the-thing)))
|
||||
(on (asserted (tuple "set thing" (bind new-v Int)))
|
||||
(set! the-thing new-v))))
|
||||
|
||||
(spawn ds-type
|
||||
(let [k (λ [10 (begin)]
|
||||
[(bind x Int)
|
||||
(facet _ (fields)
|
||||
(assert (tuple "set thing" (+ x 1))))])]
|
||||
(facet _ (fields)
|
||||
(on (asserted (tuple "the thing" (bind x Int)))
|
||||
(k x)))))
|
||||
|
||||
(spawn ds-type
|
||||
(facet _ (fields)
|
||||
(on (asserted (tuple "the thing" (bind t Int)))
|
||||
(displayln t)))))
|
|
@ -1,14 +1,19 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; 0
|
||||
;; 70
|
||||
;; #f
|
||||
|
||||
(define-constructor (account balance)
|
||||
#:type-constructor AccountT
|
||||
#:with Account (AccountT Int)
|
||||
#:with AccountRequest (AccountT ★))
|
||||
#:with AccountRequest (AccountT ★/t))
|
||||
|
||||
(define-constructor (deposit amount)
|
||||
#:type-constructor DepositT
|
||||
#:with Deposit (DepositT Int)
|
||||
#:with DepositRequest (DepositT ★))
|
||||
#:with DepositRequest (DepositT ★/t))
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U Account
|
||||
|
@ -18,45 +23,43 @@
|
|||
(Observe DepositRequest)
|
||||
(Observe (Observe DepositRequest))))
|
||||
|
||||
(dataspace ds-type
|
||||
(define-type-alias account-manager-role
|
||||
(Role (account-manager)
|
||||
(Shares Account)
|
||||
(Reacts (Asserted Deposit))))
|
||||
|
||||
(spawn ds-type
|
||||
(facet _
|
||||
(fields [balance Int 0])
|
||||
(assert (account (ref balance)))
|
||||
(on (asserted (deposit (bind amount Int)))
|
||||
(set! balance (+ (ref balance) amount)))))
|
||||
(define-type-alias client-role
|
||||
(Role (client)
|
||||
(Reacts (Asserted Account))))
|
||||
|
||||
(spawn ds-type
|
||||
(facet _
|
||||
(fields)
|
||||
(on (asserted (account (bind amount Int)))
|
||||
(displayln amount))))
|
||||
|
||||
(spawn ds-type
|
||||
(facet _
|
||||
(fields)
|
||||
(on (asserted (observe (deposit discard)))
|
||||
(facet _
|
||||
(fields)
|
||||
(assert (deposit 100))
|
||||
(assert (deposit -30)))))))
|
||||
(run-ground-dataspace ds-type
|
||||
|
||||
#|
|
||||
;; Hello-worldish "bank account" example.
|
||||
(spawn ds-type
|
||||
(lift+define-role acct-mngr-role
|
||||
(start-facet account-manager
|
||||
(field [balance Int 0])
|
||||
(assert (account (ref balance)))
|
||||
(on (asserted (deposit (bind amount Int)))
|
||||
(set! balance (+ (ref balance) amount))))))
|
||||
|
||||
(struct account (balance) #:prefab)
|
||||
(struct deposit (amount) #:prefab)
|
||||
(spawn ds-type
|
||||
(lift+define-role obs-role
|
||||
(start-facet observer
|
||||
(on (asserted (account (bind amount Int)))
|
||||
(displayln amount)))))
|
||||
|
||||
(spawn (field [balance 0])
|
||||
(assert (account (balance)))
|
||||
(on (message (deposit $amount))
|
||||
(balance (+ (balance) amount))))
|
||||
(spawn ds-type
|
||||
(lift+define-role buyer-role
|
||||
(start-facet buyer
|
||||
(on (asserted (observe (deposit discard)))
|
||||
(start-facet deposits
|
||||
(assert (deposit 100))
|
||||
(assert (deposit -30))))))))
|
||||
|
||||
(spawn (on (asserted (account $balance))
|
||||
(printf "Balance changed to ~a\n" balance)))
|
||||
|
||||
(spawn* (until (asserted (observe (deposit _))))
|
||||
(send! (deposit +100))
|
||||
(send! (deposit -30)))
|
||||
|#
|
||||
(module+ test
|
||||
(check-simulates acct-mngr-role account-manager-role)
|
||||
(check-simulates obs-role client-role)
|
||||
;; Tried to write this, then it failed, I looked and buyer doesn't actually implement that spec
|
||||
#;(check-simulates buyer-role client-role)
|
||||
)
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; leader learns that there are 5 copies of The Wind in the Willows
|
||||
|
@ -47,61 +47,65 @@
|
|||
|
||||
(define (lookup [title : String]
|
||||
[inv : Inventory] -> Int)
|
||||
(for/fold [stock 0]
|
||||
[item inv]
|
||||
(for/fold ([stock 0])
|
||||
([item inv])
|
||||
(if (equal? title (select 0 item))
|
||||
(select 1 item)
|
||||
stock)))
|
||||
|
||||
(define-type-alias seller-role
|
||||
(Role (seller)
|
||||
(Reacts (Know (Observe (BookQuoteT String ★/t)))
|
||||
(Reacts (Asserted (Observe (BookQuoteT String ★/t)))
|
||||
(Role (_)
|
||||
;; nb no mention of retracting this assertion
|
||||
(Shares (BookQuoteT String Int))))))
|
||||
(export-type "seller-role.rktd" seller-role)
|
||||
|
||||
(define (spawn-seller [inventory : Inventory])
|
||||
(spawn τc
|
||||
(export-roles "seller-impl.rktd"
|
||||
(lift+define-role seller-impl
|
||||
(start-facet seller
|
||||
(field [books Inventory inventory])
|
||||
|
||||
;; Give quotes to interested parties.
|
||||
(during (observe (book-quote (bind title String) discard))
|
||||
(during (observe (book-quote $title _))
|
||||
;; TODO - lookup
|
||||
(assert (book-quote title (lookup title (ref books))))))))
|
||||
(assert (book-quote title (lookup title (ref books))))))))))
|
||||
|
||||
(define-type-alias leader-role
|
||||
(Role (leader)
|
||||
(Reacts (Know (BookQuoteT String Int))
|
||||
(Reacts (Asserted (BookQuoteT String Int))
|
||||
(Role (poll)
|
||||
(Reacts (Know (BookInterestT String String Bool))
|
||||
(Reacts (Asserted (BookInterestT String String Bool))
|
||||
;; this is actually implemented indirectly through dataflow
|
||||
(U (Stop leader
|
||||
(Role (_)
|
||||
(Shares (BookOfTheMonthT String))))
|
||||
(Stop poll)))))))
|
||||
(Branch (Stop leader
|
||||
(Role (_)
|
||||
(Shares (BookOfTheMonthT String))))
|
||||
(Stop poll)))))))
|
||||
|
||||
(define-type-alias leader-actual
|
||||
(Role (get-quotes31)
|
||||
(Reacts (Know (BookQuoteT String (Bind Int)))
|
||||
(Role (get-quotes)
|
||||
(Reacts (Asserted (BookQuoteT String (Bind Int)))
|
||||
(Stop get-quotes)
|
||||
(Role (poll-members36)
|
||||
(Role (poll-members)
|
||||
(Reacts OnDataflow
|
||||
(Stop poll-members
|
||||
(Stop get-quotes))
|
||||
(Stop get-quotes
|
||||
(Role (announce39)
|
||||
(Shares (BookOfTheMonthT String)))))
|
||||
(Reacts (¬Know (BookInterestT String (Bind String) Bool)))
|
||||
(Reacts (Know (BookInterestT String (Bind String) Bool)))
|
||||
(Reacts (¬Know (BookInterestT String (Bind String) Bool)))
|
||||
(Reacts (Know (BookInterestT String (Bind String) Bool)))))
|
||||
(Reacts (¬Know (ClubMemberT (Bind String))))
|
||||
(Reacts (Know (ClubMemberT (Bind String))))))
|
||||
(Reacts (Retracted (BookInterestT String (Bind String) Bool)))
|
||||
(Reacts (Asserted (BookInterestT String (Bind String) Bool)))
|
||||
(Reacts (Retracted (BookInterestT String (Bind String) Bool)))
|
||||
(Reacts (Asserted (BookInterestT String (Bind String) Bool)))))
|
||||
(Reacts (Retracted (ClubMemberT (Bind String))))
|
||||
(Reacts (Asserted (ClubMemberT (Bind String))))))
|
||||
|
||||
(define (spawn-leader [titles : (List String)])
|
||||
(spawn τc
|
||||
(print-role
|
||||
(export-roles "leader-impl.rktd"
|
||||
(lift+define-role leader-impl
|
||||
(start-facet get-quotes
|
||||
(field [book-list (List String) (rest titles)]
|
||||
[title String (first titles)])
|
||||
|
@ -115,10 +119,10 @@
|
|||
(set! book-list (rest (ref book-list)))]))
|
||||
|
||||
;; keep track of book club members
|
||||
(define/query-set members (club-member (bind name String)) name
|
||||
(define/query-set members (club-member $name) name
|
||||
#;#:on-add #;(printf "leader acknowledges member ~a\n" name))
|
||||
|
||||
(on (asserted (book-quote (ref title) (bind quantity Int)))
|
||||
(on (asserted (book-quote (ref title) $quantity))
|
||||
(printf "leader learns that there are ~a copies of ~a\n" quantity (ref title))
|
||||
(cond
|
||||
[(< quantity (+ 1 (set-count (ref members))))
|
||||
|
@ -127,9 +131,22 @@
|
|||
[#t
|
||||
;; find out if at least half of the members want to read the book
|
||||
(start-facet poll-members
|
||||
(define/query-set yays (book-interest (ref title) (bind name String) #t) name)
|
||||
(define/query-set nays (book-interest (ref title) (bind name String) #f) name)
|
||||
(begin/dataflow
|
||||
(define/query-set yays (book-interest (ref title) $name #t) name)
|
||||
(define/query-set nays (book-interest (ref title) $name #f) name)
|
||||
(on (asserted (book-interest (ref title) $name _))
|
||||
;; count the leader as a 'yay'
|
||||
(when (>= (set-count (ref yays))
|
||||
(/ (set-count (ref members)) 2))
|
||||
(printf "leader finds enough affirmation for ~a\n" (ref title))
|
||||
(stop get-quotes
|
||||
(start-facet announce
|
||||
(assert (book-of-the-month (ref title))))))
|
||||
(when (> (set-count (ref nays))
|
||||
(/ (set-count (ref members)) 2))
|
||||
(printf "leader finds enough negative nancys for ~a\n" (ref title))
|
||||
(stop poll-members (next-book))))
|
||||
;; begin/dataflow is a problem for simulation checking
|
||||
#;(begin/dataflow
|
||||
;; count the leader as a 'yay'
|
||||
(when (>= (set-count (ref yays))
|
||||
(/ (set-count (ref members)) 2))
|
||||
|
@ -140,27 +157,29 @@
|
|||
(when (> (set-count (ref nays))
|
||||
(/ (set-count (ref members)) 2))
|
||||
(printf "leader finds enough negative nancys for ~a\n" (ref title))
|
||||
(stop poll-members (next-book)))))]))))))
|
||||
(stop poll-members (next-book)))))])))))))
|
||||
|
||||
(define-type-alias member-role
|
||||
(Role (member)
|
||||
(Shares (ClubMemberT String))
|
||||
;; should this be the type of the pattern? or lowered to concrete types?
|
||||
(Reacts (Know (Observe (BookInterestT String ★/t ★/t)))
|
||||
(Reacts (Asserted (Observe (BookInterestT String ★/t ★/t)))
|
||||
(Role (_)
|
||||
(Shares (BookInterestT String String Bool))))))
|
||||
|
||||
|
||||
(define (spawn-club-member [name : String]
|
||||
[titles : (List String)])
|
||||
(spawn τc
|
||||
(export-roles "member-impl.rktd"
|
||||
(lift+define-role member-impl
|
||||
(start-facet member
|
||||
;; assert our presence
|
||||
(assert (club-member name))
|
||||
;; respond to polls
|
||||
(during (observe (book-interest (bind title String) discard discard))
|
||||
(during (observe (book-interest $title _ _))
|
||||
(define answer (member? title titles))
|
||||
(printf "~a responds to suggested book ~a: ~a\n" name title answer)
|
||||
(assert (book-interest title name answer))))))
|
||||
(assert (book-interest title name answer))))))))
|
||||
|
||||
(run-ground-dataspace τc
|
||||
(spawn-seller (list (tuple "The Wind in the Willows" 5)
|
||||
|
@ -172,3 +191,19 @@
|
|||
"Encyclopaedia Brittannica"))
|
||||
(spawn-club-member "tony" (list "Candide"))
|
||||
(spawn-club-member "sam" (list "Encyclopaedia Brittannica" "Candide")))
|
||||
|
||||
(module+ test
|
||||
(verify-actors (And (Eventually (A BookQuote))
|
||||
(Always (Implies (A (Observe (BookQuoteT String ★/t)))
|
||||
(Eventually (A BookQuote))))
|
||||
(Always (Implies (A (Observe (BookInterestT String ★/t ★/t)))
|
||||
(Eventually (A BookInterest)))))
|
||||
leader-impl
|
||||
seller-impl
|
||||
member-impl))
|
||||
|
||||
(module+ test
|
||||
(check-simulates leader-impl leader-impl)
|
||||
(check-has-simulating-subgraph leader-impl leader-role)
|
||||
(check-simulates seller-impl seller-impl)
|
||||
(check-has-simulating-subgraph seller-impl seller-role))
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; adapted from section 8.3 of Tony's dissertation
|
||||
|
||||
|
@ -22,11 +22,11 @@
|
|||
(Role (cell-factory)
|
||||
(Reacts (Message (CreateCellT ID Value))
|
||||
;; want to say that what it spawns is a Cell
|
||||
(Spawn ★/t))))
|
||||
(Spawns ★/t))))
|
||||
|
||||
(define-type-alias Reader
|
||||
(Role (reader)
|
||||
(Shares (Observe (Cell ID ★/t)))))
|
||||
(Shares (Observe (CellT ID ★/t)))))
|
||||
|
||||
(define-type-alias Writer
|
||||
(Role (writer)
|
||||
|
@ -68,4 +68,4 @@
|
|||
(on (asserted (cell id (bind value Value)))
|
||||
(printf "Cell ~a updated to: ~a\n" id value))
|
||||
(on (retracted (cell id discard))
|
||||
(printf "Cell ~a deleted\n" id)))))
|
||||
(printf "Cell ~a deleted\n" id)))))
|
|
@ -1,6 +1,6 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
(require "../../drivers/tcp.rkt")
|
||||
(require typed/syndicate/drivers/tcp)
|
||||
|
||||
;; message
|
||||
(define-constructor (speak who what)
|
||||
|
@ -26,8 +26,7 @@
|
|||
|
||||
(spawn chat-ds
|
||||
(start-facet chat-server
|
||||
;; TODO - should be during/spawn
|
||||
(during (tcp-connection (bind id Symbol) (tcp-listener 5999))
|
||||
(during/spawn (tcp-connection (bind id Symbol) (tcp-listener 5999))
|
||||
(assert (tcp-accepted id))
|
||||
(let ([me (gensym 'user)])
|
||||
(assert (present me))
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
(define-constructor (file name content)
|
||||
#:type-constructor FileT
|
||||
|
@ -31,4 +31,4 @@
|
|||
(define-type-alias Writer
|
||||
(Role (writer)
|
||||
(Sends Save)
|
||||
(Sends Delete)))
|
||||
(Sends Delete)))
|
|
@ -0,0 +1,132 @@
|
|||
#lang racket
|
||||
|
||||
(provide string->words
|
||||
split-at/lenient-
|
||||
(struct-out job)
|
||||
(struct-out task)
|
||||
(struct-out map-work)
|
||||
(struct-out reduce-work)
|
||||
string->job
|
||||
file->job)
|
||||
|
||||
(require (only-in racket/list
|
||||
split-at))
|
||||
(module+ test
|
||||
(require rackunit))
|
||||
|
||||
(define (string->words s)
|
||||
(map (lambda (w) (string-trim w #px"\\p{P}")) (string-split s)))
|
||||
|
||||
(module+ test
|
||||
(check-equal? (string->words "good day sir")
|
||||
(list "good" "day" "sir"))
|
||||
(check-equal? (string->words "")
|
||||
(list))
|
||||
(check-equal? (string->words "good eve ma'am")
|
||||
(list "good" "eve" "ma'am"))
|
||||
(check-equal? (string->words "please sir. may I have another?")
|
||||
(list "please" "sir" "may" "I" "have" "another"))
|
||||
;; TODO - currently fails
|
||||
#;(check-equal? (string->words "but wait---there's more")
|
||||
(list "but" "wait" "there's" "more")))
|
||||
|
||||
;; (Listof A) Nat -> (List (Listof A) (Listof A))
|
||||
;; like split-at but allow a number larger than the length of the list
|
||||
(define (split-at/lenient- lst n)
|
||||
(define-values (a b)
|
||||
(split-at lst (min n (length lst))))
|
||||
(list a b))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; Creating a Job
|
||||
|
||||
(struct job (id tasks) #:transparent)
|
||||
(struct task (id desc) #:transparent)
|
||||
(struct map-work (data) #:transparent)
|
||||
(struct reduce-work (left right) #:transparent)
|
||||
|
||||
;; (Listof WorkDesc) -> (Values (Listof WorkDesc) (Optionof WorkDesc))
|
||||
;; Pair up elements of the input list into a list of reduce tasks, and if the input list is odd also
|
||||
;; return the odd-one out.
|
||||
;; Conceptually, it does something like this:
|
||||
;; '(a b c d) => '((a b) (c d))
|
||||
;; '(a b c d e) => '((a b) (c d) e)
|
||||
(define (pair-up ls)
|
||||
(let loop ([ls ls]
|
||||
[reductions '()])
|
||||
(match ls
|
||||
['()
|
||||
(values reductions #f)]
|
||||
[(list x)
|
||||
(values reductions x)]
|
||||
[(list-rest x y more)
|
||||
(loop more (cons (reduce-work x y) reductions))])))
|
||||
|
||||
|
||||
;; a TaskTree is one of
|
||||
;; (map-work data)
|
||||
;; (reduce-work TaskTree TaskTree)
|
||||
|
||||
;; (Listof String) -> TaskTree
|
||||
;; Create a tree structure of tasks
|
||||
(define (create-task-tree lines)
|
||||
(define map-works
|
||||
(for/list ([line (in-list lines)])
|
||||
(map-work line)))
|
||||
;; build the tree up from the leaves
|
||||
(let loop ([nodes map-works])
|
||||
(match nodes
|
||||
['()
|
||||
;; input was empty
|
||||
(map-work "")]
|
||||
[(list x)
|
||||
x]
|
||||
[_
|
||||
(define-values (reductions left-over?)
|
||||
(pair-up nodes))
|
||||
(loop (if left-over?
|
||||
(cons left-over? reductions)
|
||||
reductions))])))
|
||||
|
||||
;; TaskTree ID -> (Listof Task)
|
||||
;; flatten a task tree by assigning job-unique IDs
|
||||
(define (task-tree->list tt job-id)
|
||||
(define-values (tasks _)
|
||||
;; TaskTree ID -> (Values (Listof Task) ID)
|
||||
;; the input id is for the current node of the tree
|
||||
;; returned id is the "next available" id, given ids are assigned in strict ascending order
|
||||
(let loop ([tt tt]
|
||||
[next-id 0])
|
||||
(match tt
|
||||
[(map-work _)
|
||||
;; NOTE : utilizing knowledge of Tuple representation here
|
||||
(values (list (task (list 'tuple next-id job-id) tt))
|
||||
(add1 next-id))]
|
||||
[(reduce-work left right)
|
||||
(define left-id (add1 next-id))
|
||||
(define-values (lefts right-id)
|
||||
(loop left left-id))
|
||||
(define-values (rights next)
|
||||
(loop right right-id))
|
||||
(values (cons (task (list 'tuple next-id job-id) (reduce-work left-id right-id))
|
||||
(append lefts rights))
|
||||
next)])))
|
||||
tasks)
|
||||
|
||||
;; InputPort -> Job
|
||||
(define (create-job in)
|
||||
(define job-id (gensym 'job))
|
||||
(define input-lines (sequence->list (in-lines in)))
|
||||
(define tasks (task-tree->list (create-task-tree input-lines) job-id))
|
||||
(job job-id tasks))
|
||||
|
||||
;; String -> Job
|
||||
(define (string->job s)
|
||||
(create-job (open-input-string s)))
|
||||
|
||||
;; PathString -> Job
|
||||
(define (file->job path)
|
||||
(define in (open-input-file path))
|
||||
(define j (create-job in))
|
||||
(close-input-port in)
|
||||
j)
|
|
@ -0,0 +1,576 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; Protocol
|
||||
|
||||
|
||||
#|
|
||||
Conversations in the flink dataspace primarily concern two topics: presence and
|
||||
task execution.
|
||||
|
||||
Presence Protocol
|
||||
-----------------
|
||||
|
||||
The JobManager (JM) asserts its presence with (job-manager-alive). The operation
|
||||
of each TaskManager (TM) is contingent on the presence of a job manager.
|
||||
|#
|
||||
(assertion-struct job-manager-alive : JobManagerAlive ())
|
||||
#|
|
||||
In turn, TaskManagers advertise their presence with (task-manager ID slots),
|
||||
where ID is a unique id, and slots is a natural number. The number of slots
|
||||
dictates how many tasks the TM can take on. To reduce contention, the JM
|
||||
should only assign a task to a TM if the TM actually has the resources to
|
||||
perform a task.
|
||||
|#
|
||||
(assertion-struct task-manager : TaskManager (id slots))
|
||||
;; an ID is a symbol
|
||||
(define-type-alias ID Symbol)
|
||||
#|
|
||||
The resources available to a TM are its associated TaskRunners (TRs). TaskRunners
|
||||
assert their presence with (task-runner ID),
|
||||
|#
|
||||
(assertion-struct task-runner : TaskRunner (id))
|
||||
|
||||
#|
|
||||
A Status is one of
|
||||
- IDLE, when the TR is not executing a task
|
||||
- (executing Int), when the TR is executing the task with identified by the Int
|
||||
- OVERLOAD, when the TR has been asked to perform a task before it has
|
||||
finished its previous assignment. For the purposes of this model, it indicates a
|
||||
failure in the protocol; like the exchange between the JM and the TM, a TR
|
||||
should only receive tasks when it is IDLE.
|
||||
|#
|
||||
(define-constructor* (executing : Executing id))
|
||||
(define-type-alias Status (U Symbol (Executing Int)))
|
||||
(define IDLE : Status 'idle)
|
||||
(define OVERLOAD : Status 'overload)
|
||||
|
||||
#|
|
||||
Task Delegation Protocol
|
||||
-----------------------
|
||||
|
||||
Task Delegation has two roles, TaskAssigner (TA) and TaskPerformer (TP).
|
||||
|
||||
A TaskAssigner requests the performance of a Task with a particular TaskPerformer
|
||||
through the assertion of interest
|
||||
(observe (task-performance ID Task ★))
|
||||
where the ID identifies the TP
|
||||
|#
|
||||
(assertion-struct task-performance : TaskPerformance (assignee task desc))
|
||||
#|
|
||||
A Task is a (task TaskID Work), where Work is one of
|
||||
- (map-work String)
|
||||
- (reduce-work (U Int TaskResult) (U Int TaskResult)), referring to either the
|
||||
ID of the dependent task or its results. A reduce-work is ready to be executed
|
||||
when it has both results.
|
||||
|
||||
A TaskID is a (Tuple Int ID), where the first Int is specific to the individual
|
||||
task and the second identifies the job it belongs to.
|
||||
|
||||
A TaskResult is a (Hashof String Natural), counting the occurrences of words
|
||||
|#
|
||||
(require-struct task #:as Task #:from "flink-support.rkt")
|
||||
(require-struct map-work #:as MapWork #:from "flink-support.rkt")
|
||||
(require-struct reduce-work #:as ReduceWork #:from "flink-support.rkt")
|
||||
(define-type-alias TaskID (Tuple Int ID))
|
||||
(define-type-alias WordCount (Hash String Int))
|
||||
(define-type-alias TaskResult WordCount)
|
||||
(define-type-alias Reduce
|
||||
(ReduceWork (Either Int TaskResult)
|
||||
(Either Int TaskResult)))
|
||||
(define-type-alias ReduceInput
|
||||
(ReduceWork Int Int))
|
||||
(define-type-alias Work
|
||||
(U Reduce (MapWork String)))
|
||||
(define-type-alias ConcreteWork
|
||||
(U (ReduceWork TaskResult TaskResult)
|
||||
(MapWork String)))
|
||||
(define-type-alias InputTask
|
||||
(Task TaskID (U ReduceInput (MapWork String))))
|
||||
(define-type-alias PendingTask
|
||||
(Task TaskID Work))
|
||||
(define-type-alias ConcreteTask
|
||||
(Task TaskID ConcreteWork))
|
||||
#|
|
||||
The TaskPerformer responds to a request by describing its state with respect
|
||||
to that task,
|
||||
(task-performance ID Task TaskStateDesc)
|
||||
|
||||
A TaskStateDesc is one of
|
||||
- ACCEPTED, when the TP has the resources to perform the task. (TODO - not sure if this is ever visible, currently)
|
||||
- OVERLOAD/ts, when the TP does not have the resources to perform the task.
|
||||
- RUNNING, indicating that the task is being performed
|
||||
- (finished TaskResult), describing the results
|
||||
|#
|
||||
(define-constructor* (finished : Finished data))
|
||||
(define-type-alias TaskStateDesc
|
||||
(U Symbol (Finished TaskResult)))
|
||||
(define ACCEPTED : TaskStateDesc 'accepted)
|
||||
(define RUNNING : TaskStateDesc 'running)
|
||||
;; this is gross, it's needed in part because equal? requires two of args of the same type
|
||||
(define OVERLOAD/ts : TaskStateDesc 'overload)
|
||||
#|
|
||||
Two instances of the Task Delegation Protocol take place: one between the
|
||||
JobManager and the TaskManager, and one between the TaskManager and its
|
||||
TaskRunners.
|
||||
|#
|
||||
|
||||
;; I think this is wrong by explicitly requiring that the facet stop in response
|
||||
(define-type-alias TaskAssigner-v1
|
||||
(Role (assign)
|
||||
(Shares (Observe (TaskPerformance ID ConcreteTask ★/t)))
|
||||
;; would be nice to say how the TaskIDs relate to each other
|
||||
(Reacts (Asserted (TaskPerformance ID ConcreteTask ★/t))
|
||||
(Branch (Stop assign)
|
||||
(Effs)))))
|
||||
|
||||
(define-type-alias TaskAssigner
|
||||
(Role (assign)
|
||||
;; would be nice to say how the TaskIDs relate to each other
|
||||
(Reacts (Asserted (TaskPerformance ID ConcreteTask TaskStateDesc))
|
||||
)))
|
||||
|
||||
(export-type "task-assigner.rktd" TaskAssigner)
|
||||
|
||||
(define-type-alias TaskPerformer
|
||||
(Role (listen)
|
||||
(During (Observe (TaskPerformance ID ConcreteTask ★/t))
|
||||
;; would be nice to say how the IDs and TaskIDs relate to each other
|
||||
;; BUG in spec; ConcreteTask used to be just TaskID (when I streamlined protocol)
|
||||
(Shares (TaskPerformance ID ConcreteTask TaskStateDesc)))))
|
||||
|
||||
#|
|
||||
Job Submission Protocol
|
||||
-----------------------
|
||||
|
||||
Finally, Clients submit their jobs to the JobManager by asserting interest
|
||||
(observe (job-completion ID (Listof Task) ★))
|
||||
|
||||
The JobManager then performs the job and, when finished, asserts
|
||||
(job-completion ID (Listof Task) TaskResult)
|
||||
|
||||
|#
|
||||
(require-struct job #:as Job #:from "flink-support.rkt")
|
||||
(assertion-struct job-completion : JobCompletion (id data result))
|
||||
(define-type-alias JobDesc (Job ID (List InputTask)))
|
||||
|
||||
(define-type-alias τc
|
||||
(U (TaskRunner ID)
|
||||
(Observe (TaskPerformance ID ConcreteTask ★/t))
|
||||
(TaskPerformance ID ConcreteTask TaskStateDesc)
|
||||
(Observe (Observe (TaskPerformance ID ★/t ★/t)))
|
||||
(JobManagerAlive)
|
||||
(Observe (JobManagerAlive))
|
||||
(Observe (TaskRunner ★/t))
|
||||
(TaskManager ID Int)
|
||||
(Observe (TaskManager ★/t ★/t))
|
||||
(JobCompletion ID (List InputTask) TaskResult)
|
||||
(Observe (JobCompletion ID (List InputTask) ★/t))
|
||||
(Observe (Observe (JobCompletion ★/t ★/t ★/t)))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; Util Macros
|
||||
|
||||
(require syntax/parse/define)
|
||||
|
||||
(define-simple-macro (log fmt . args)
|
||||
(begin
|
||||
(printf fmt . args)
|
||||
(printf "\n")))
|
||||
|
||||
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; TaskRunner
|
||||
|
||||
|
||||
(define (word-count-increment [h : WordCount]
|
||||
[word : String]
|
||||
-> WordCount)
|
||||
(hash-update/failure h
|
||||
word
|
||||
add1
|
||||
0))
|
||||
|
||||
(define (count-new-words [word-count : WordCount]
|
||||
[words : (List String)]
|
||||
-> WordCount)
|
||||
(for/fold ([result word-count])
|
||||
([word words])
|
||||
(word-count-increment result word)))
|
||||
|
||||
(require/typed "flink-support.rkt"
|
||||
[string->words : (→fn String (List String))])
|
||||
|
||||
(define (spawn-task-runner [id : ID] [tm-id : ID])
|
||||
(spawn τc
|
||||
(export-roles "task-runner-impl.rktd"
|
||||
(lift+define-role task-runner-impl
|
||||
(start-facet runner ;; #:includes-behavior TaskPerformer
|
||||
(assert (task-runner id))
|
||||
(on (retracted (task-manager tm-id _))
|
||||
(stop runner))
|
||||
(during (observe (task-performance id $t _))
|
||||
(match-define (task $task-id $desc) t)
|
||||
(field [state TaskStateDesc ACCEPTED])
|
||||
(assert (task-performance id t (ref state)))
|
||||
;; since we currently finish everything in one turn, these changes to status aren't
|
||||
;; actually visible.
|
||||
(set! state RUNNING)
|
||||
(match desc
|
||||
[(map-work $data)
|
||||
(define wc (count-new-words (ann (hash) WordCount) (string->words data)))
|
||||
(set! state (finished wc))]
|
||||
[(reduce-work $left $right)
|
||||
(define wc (hash-union/combine left right +))
|
||||
(set! state (finished wc))])))))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; TaskManager
|
||||
|
||||
|
||||
(define (spawn-task-manager [num-task-runners : Int])
|
||||
(define id (gensym 'task-manager))
|
||||
(spawn τc
|
||||
(export-roles "task-manager-impl.rktd"
|
||||
(#;begin lift+define-role task-manager-impl
|
||||
(start-facet tm ;; #:includes-behavior TaskAssigner
|
||||
(log "Task Manager (TM) ~a is running" id)
|
||||
(during (job-manager-alive)
|
||||
(log "TM ~a learns about JM" id)
|
||||
|
||||
(field [task-runners (Set ID) (set)])
|
||||
|
||||
(on start
|
||||
(for ([_ (in-range num-task-runners)])
|
||||
(define tr-id (gensym 'task-runner))
|
||||
(start-facet monitor-task-runner
|
||||
(on start (spawn-task-runner tr-id id))
|
||||
(on (asserted (task-runner tr-id))
|
||||
(log "TM ~a successfully created task-runner ~a" id tr-id)
|
||||
(set! task-runners (set-add (ref task-runners) tr-id)))
|
||||
(on (retracted (task-runner tr-id))
|
||||
(log "TM ~a detected failure of task runner ~a, restarting" id tr-id)
|
||||
(set! task-runners (set-remove (ref task-runners) tr-id))
|
||||
(spawn-task-runner tr-id id)))))
|
||||
|
||||
|
||||
(field [busy-runners (Set ID) (set)])
|
||||
|
||||
(define/dataflow idle-runners
|
||||
(set-count (set-subtract (ref task-runners) (ref busy-runners))))
|
||||
|
||||
(assert (task-manager id (ref idle-runners)))
|
||||
|
||||
(define (can-accept?)
|
||||
(positive? (ref idle-runners)))
|
||||
|
||||
(define (select-runner)
|
||||
(define runner (for/first ([r (in-set (ref task-runners))]
|
||||
#:unless (set-member? (ref busy-runners) r))
|
||||
r))
|
||||
(match runner
|
||||
[(some $r)
|
||||
(set! busy-runners (set-add (ref busy-runners) r))
|
||||
r]
|
||||
[none
|
||||
(error "need to call can-accept? before selecting a runner")]))
|
||||
|
||||
(during (observe (task-performance id $t _))
|
||||
(match-define (task $task-id $desc) t)
|
||||
(define status0 : TaskStateDesc
|
||||
(if (can-accept?)
|
||||
RUNNING
|
||||
OVERLOAD/ts))
|
||||
(field [status TaskStateDesc status0])
|
||||
(assert (task-performance id t (ref status)))
|
||||
(when (can-accept?)
|
||||
(define runner (select-runner))
|
||||
(log "TM ~a assigns task ~a to runner ~a" id task-id runner)
|
||||
(on stop (set! busy-runners (set-remove (ref busy-runners) runner)))
|
||||
(on (asserted (task-performance runner t $st))
|
||||
(match st
|
||||
[ACCEPTED #f]
|
||||
[RUNNING #f]
|
||||
[OVERLOAD/ts
|
||||
(set! status OVERLOAD/ts)]
|
||||
[(finished discard)
|
||||
(set! status st)]))))))))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; JobManager
|
||||
|
||||
;; Task Int Any -> Task
|
||||
;; If the given task is waiting for this data, replace the waiting ID with the data
|
||||
(define (task+data [t : PendingTask]
|
||||
[id : Int]
|
||||
[data : TaskResult]
|
||||
-> PendingTask)
|
||||
(match t
|
||||
[(task $tid (reduce-work (left id) $r))
|
||||
(task tid (reduce-work (right data) r))]
|
||||
[(task $tid (reduce-work $l (left id)))
|
||||
(task tid (reduce-work l (right data)))]
|
||||
[_ t]))
|
||||
|
||||
|
||||
(require/typed "flink-support.rkt"
|
||||
[split-at/lenient- : (∀ (X) (→fn (List X) Int (List (List X))))])
|
||||
|
||||
(define (∀ (X) (split-at/lenient [xs : (List X)]
|
||||
[n : Int]
|
||||
-> (Tuple (List X) (List X))))
|
||||
(define l (split-at/lenient- xs n))
|
||||
(tuple (first l) (second l)))
|
||||
|
||||
;; Task -> Bool
|
||||
;; Test if the task is ready to run
|
||||
(define (task-ready? [t : PendingTask] -> (Maybe ConcreteTask))
|
||||
(match t
|
||||
[(task $tid (map-work $s))
|
||||
;; having to re-produce this is directly bc of no occurrence typing
|
||||
(some (task tid (map-work s)))]
|
||||
[(task $tid (reduce-work (right $v1)
|
||||
(right $v2)))
|
||||
(some (task tid (reduce-work v1 v2)))]
|
||||
[_
|
||||
none]))
|
||||
|
||||
|
||||
(define (partition-ready-tasks [tasks : (List PendingTask)]
|
||||
-> (Tuple (List PendingTask)
|
||||
(List ConcreteTask)))
|
||||
(define part (inst partition/either PendingTask PendingTask ConcreteTask))
|
||||
(part tasks
|
||||
(lambda ([t : PendingTask])
|
||||
(match (task-ready? t)
|
||||
[(some $ct)
|
||||
(right ct)]
|
||||
[none
|
||||
(left t)]))))
|
||||
|
||||
|
||||
(define (input->pending-task [t : InputTask] -> PendingTask)
|
||||
(match t
|
||||
[(task $id (map-work $s))
|
||||
;; with occurrence typing, could just return t
|
||||
(task id (map-work s))]
|
||||
[(task $id (reduce-work $l $r))
|
||||
(task id (reduce-work (left l) (left r)))]))
|
||||
|
||||
|
||||
(message-struct tasks-finished : TasksFinished (id results))
|
||||
|
||||
;; assertions used for internal slot-management protocol
|
||||
(assertion-struct slots : Slots (v))
|
||||
(assertion-struct slot-assignment : SlotAssignment (who mngr))
|
||||
;; tid is the TaskID, rid is a unique symbol to a particular request for a slot
|
||||
(define-constructor* (request-id : ReqID tid rid))
|
||||
(define-type-alias RequestID (ReqID TaskID ID))
|
||||
(message-struct task-is-ready : TaskIsReady (job-id task))
|
||||
|
||||
(define (spawn-job-manager)
|
||||
(spawn τc
|
||||
(lift+define-role job-manager-impl ;; export-roles "job-manager-impl.rktd"
|
||||
(start-facet jm ;; #:includes-behavior TaskAssigner
|
||||
(assert (job-manager-alive))
|
||||
(log "Job Manager Up")
|
||||
|
||||
(on start
|
||||
(start-facet slot-manager
|
||||
;; keep track of task managers, how many slots they say are open, and how many tasks we have assigned.
|
||||
(define/query-hash task-managers (task-manager $id:ID $slots:Int) id slots
|
||||
#:on-add (log "JM learns that ~a has ~v slots" id (hash-ref (ref task-managers) id)))
|
||||
|
||||
(field ;; how many outstanding assignments there are for each task manager
|
||||
[requests-in-flight (Hash ID Int) (hash)]
|
||||
;; map a request's ID to the manager it is assigned to
|
||||
[assignments (Hash ID ID) (hash)])
|
||||
(define (slots-available)
|
||||
(for/sum ([(id v) (ref task-managers)])
|
||||
(max 0 (- v (hash-ref/failure (ref requests-in-flight) id 0)))))
|
||||
|
||||
(define (try-take-slot! [me : ID] -> (Maybe ID))
|
||||
(define mngr?
|
||||
(for/first ([(id slots) (ref task-managers)]
|
||||
#:when (positive? (- slots (hash-ref/failure (ref requests-in-flight) id 0))))
|
||||
id))
|
||||
(match mngr?
|
||||
[(some $m)
|
||||
(set! assignments (hash-set (ref assignments) me m))
|
||||
(set! requests-in-flight (hash-update/failure (ref requests-in-flight) m add1 0))]
|
||||
[none
|
||||
#f])
|
||||
mngr?)
|
||||
|
||||
(know (slots (slots-available)))
|
||||
|
||||
(during (know (observe (slot-assignment (request-id $tid:TaskID $who:ID) _)))
|
||||
(on start
|
||||
(start-facet assign-manager
|
||||
;; what if one manager gains a slot but another loses one, so n stays the same?
|
||||
(on (know (slots $n:Int))
|
||||
#;(log "Dispatcher request ~a learns there are ~a slots" tid n)
|
||||
(unless (or (zero? n) (hash-has-key? (ref assignments) who))
|
||||
(define mngr? (try-take-slot! who))
|
||||
(match mngr?
|
||||
[(some $mngr)
|
||||
(stop assign-manager
|
||||
(log "Dispatcher assigns task ~a to ~a" tid mngr)
|
||||
(start-facet _ (know (slot-assignment (request-id tid who) mngr)))
|
||||
(start-facet waiting-for-answer
|
||||
(on (asserted (observe (task-performance mngr (task tid $x) _)))
|
||||
(start-facet _ (on (asserted (task-performance mngr (task tid x) _))
|
||||
(log "Dispatcher sees answer for ~a" tid)
|
||||
(stop waiting-for-answer))))
|
||||
(on stop
|
||||
(set! requests-in-flight (hash-update (ref requests-in-flight) mngr sub1)))))]
|
||||
[_ #f])))))
|
||||
(on stop (set! assignments (hash-remove (ref assignments) who))))))
|
||||
|
||||
(during (observe (job-completion $job-id $tasks _))
|
||||
(log "JM receives job ~a" job-id)
|
||||
(define pending (for/list ([t tasks])
|
||||
(input->pending-task t)))
|
||||
(define-tuple (not-ready ready) (partition-ready-tasks pending))
|
||||
(field [waiting-tasks (List PendingTask) not-ready]
|
||||
[tasks-in-progress Int 0])
|
||||
|
||||
;; Task -> Void
|
||||
(define (add-ready-task! [t : ConcreteTask])
|
||||
;; TODO - use functional-queue.rkt from ../../
|
||||
(match-define (task $tid _) t)
|
||||
(log "JM marks task ~a as ready" tid)
|
||||
(realize! (task-is-ready job-id t)))
|
||||
|
||||
;; ID Data -> Void
|
||||
;; Update any dependent tasks with the results of the given task, moving
|
||||
;; them to the ready queue when possible
|
||||
(define (push-results [task-id : TaskID]
|
||||
[data : TaskResult])
|
||||
(cond
|
||||
[(and (zero? (ref tasks-in-progress))
|
||||
(empty? (ref waiting-tasks)))
|
||||
(log "JM finished with job ~a" job-id)
|
||||
(realize! (tasks-finished job-id data))]
|
||||
[else
|
||||
;; TODO - in MapReduce, there should be either 1 waiting task, or 0, meaning the job is done.
|
||||
(define still-waiting
|
||||
(for/fold ([ts : (List PendingTask) (list)])
|
||||
([t (ref waiting-tasks)])
|
||||
(define t+ (task+data t (select 0 task-id) data))
|
||||
(match (task-ready? t+)
|
||||
[(some $ready)
|
||||
(add-ready-task! ready)
|
||||
ts]
|
||||
[_
|
||||
(cons t+ ts)])))
|
||||
(set! waiting-tasks still-waiting)]))
|
||||
|
||||
;; Task (ID TaskResult -> Void) -> Void
|
||||
;; Requires (task-ready? t)
|
||||
(define (∀ (ρ) (perform-task [t : ConcreteTask]
|
||||
[k : (proc TaskID TaskResult -> ★/t
|
||||
#:roles (ρ))]))
|
||||
(start-facet perform
|
||||
(on start (set! tasks-in-progress (add1 (ref tasks-in-progress))))
|
||||
(on stop (set! tasks-in-progress (sub1 (ref tasks-in-progress))))
|
||||
(match-define (task $this-id $desc) t)
|
||||
(log "JM begins on task ~a" this-id)
|
||||
|
||||
;; ID -> ...
|
||||
(define (assign-task [mngr : ID]
|
||||
[request-again! : (→fn ★/t)])
|
||||
(start-facet assign
|
||||
(on (retracted (task-manager mngr _))
|
||||
;; our task manager has crashed
|
||||
(stop assign (request-again!)))
|
||||
(on (asserted (task-performance mngr t $status))
|
||||
(match status
|
||||
[ACCEPTED #f]
|
||||
[RUNNING #f]
|
||||
[OVERLOAD/ts
|
||||
;; need to find a new task manager
|
||||
;; don't think we need a release-slot! here, because if we've heard back from a task manager,
|
||||
;; they should have told us a different slot count since we tried to give them work
|
||||
(log "JM overloaded manager ~a with task ~a" mngr this-id)
|
||||
(stop assign (request-again!))]
|
||||
[(finished $results)
|
||||
(log "JM receives the results of task ~a" this-id)
|
||||
(stop perform (k this-id results))]))))
|
||||
|
||||
(define (select-a-task-manager)
|
||||
(start-facet select
|
||||
(field [req-id ID (gensym 'perform-task)])
|
||||
(define (request-again!) (set! req-id (gensym 'perform-task)))
|
||||
(on (know (slot-assignment (request-id this-id (ref req-id)) $mngr:ID))
|
||||
(assign-task mngr request-again!))))
|
||||
|
||||
(on start (select-a-task-manager))))
|
||||
|
||||
(on start
|
||||
(start-facet delegate-tasks
|
||||
(on (realize (tasks-finished job-id $data:TaskResult))
|
||||
(stop delegate-tasks
|
||||
(start-facet done (assert (job-completion job-id tasks data)))))
|
||||
(on (realize (task-is-ready job-id $t:ConcreteTask))
|
||||
(perform-task t push-results)))
|
||||
(for ([t (in-list ready)])
|
||||
(add-ready-task! t))))))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; Client
|
||||
|
||||
;; Job -> Void
|
||||
(define (spawn-client [j : JobDesc])
|
||||
(spawn τc
|
||||
(export-roles "client-impl.rktd"
|
||||
(lift+define-role client-impl
|
||||
(start-facet _
|
||||
(match-define (job $id $tasks) j)
|
||||
(on (asserted (job-completion id tasks $data))
|
||||
(printf "job done!\n~a\n" data)))))))
|
||||
|
||||
;; ---------------------------------------------------------------------------------------------------
|
||||
;; Main
|
||||
|
||||
(require/typed "flink-support.rkt"
|
||||
[string->job : (→fn String JobDesc)]
|
||||
[file->job : (→fn String JobDesc)])
|
||||
|
||||
(define INPUT "a b c a b c\na b\n a b\na b")
|
||||
;; expected:
|
||||
;; #hash((a . 5) (b . 5) (c . 2))
|
||||
|
||||
(run-ground-dataspace τc
|
||||
(spawn-job-manager)
|
||||
(spawn-task-manager 2)
|
||||
(spawn-task-manager 3)
|
||||
(spawn-client (file->job "lorem.txt"))
|
||||
(spawn-client (string->job INPUT)))
|
||||
|
||||
(module+ test
|
||||
#;(verify-actors #;(Eventually (A (JobCompletion ID (List InputTask) TaskResult)))
|
||||
(Always (Implies (A (Observe (JobCompletion ID (List InputTask) ★/t)))
|
||||
(Eventually (A (JobCompletion ID (List InputTask) TaskResult)))))
|
||||
job-manager-impl
|
||||
task-manager-impl
|
||||
client-impl)
|
||||
|
||||
(verify-actors (And (Always (Implies (A (Observe (TaskPerformance ID ConcreteTask ★/t)))
|
||||
(Eventually (A (TaskPerformance ID ConcreteTask TaskStateDesc)))))
|
||||
(Eventually (A (TaskPerformance ID ConcreteTask TaskStateDesc))))
|
||||
TaskAssigner
|
||||
TaskPerformer))
|
||||
|
||||
(module+ test
|
||||
(check-simulates task-runner-impl task-runner-impl)
|
||||
(check-has-simulating-subgraph task-runner-impl TaskPerformer)
|
||||
(check-simulates task-manager-impl task-manager-impl)
|
||||
(check-has-simulating-subgraph task-manager-impl TaskPerformer)
|
||||
(check-has-simulating-subgraph task-manager-impl TaskAssigner)
|
||||
(check-has-simulating-subgraph job-manager-impl TaskAssigner))
|
||||
|
||||
;; infinite loop?
|
||||
#;(module+ test
|
||||
(check-simulates job-manager-impl job-manager-impl))
|
|
@ -0,0 +1,88 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output:
|
||||
#|
|
||||
balance = 0
|
||||
balance = 5
|
||||
balance = 0
|
||||
JEEPERS
|
||||
know overdraft!
|
||||
balance = -1
|
||||
balance = -2
|
||||
no longer in overdraft
|
||||
balance = 8
|
||||
|#
|
||||
|
||||
(assertion-struct balance : Balance (v))
|
||||
(message-struct deposit : Deposit (v))
|
||||
|
||||
;; Internal Events
|
||||
(message-struct new-transaction : NewTransaction (old new))
|
||||
(assertion-struct overdraft : Overdraft ())
|
||||
|
||||
(define-type-alias τc/external
|
||||
(U (Balance Int)
|
||||
(Message (Deposit Int))
|
||||
(Observe ★/t)))
|
||||
|
||||
(define-type-alias τc/internal
|
||||
(U (Message (NewTransaction Int Int))
|
||||
(Overdraft)
|
||||
(Observe ★/t)))
|
||||
|
||||
(define-type-alias τc
|
||||
(U τc/external
|
||||
τc/internal))
|
||||
|
||||
(run-ground-dataspace τc/external
|
||||
|
||||
(spawn
|
||||
(begin
|
||||
(start-facet bank
|
||||
(field [account Int 0])
|
||||
|
||||
(assert (balance (ref account)))
|
||||
|
||||
(on (message (deposit $v))
|
||||
(define prev (ref account))
|
||||
(set! account (+ v prev))
|
||||
(realize! (new-transaction prev (ref account))))
|
||||
|
||||
(on (realize (new-transaction $old:Int $new:Int))
|
||||
(when (and (negative? new)
|
||||
(not (negative? old)))
|
||||
(start-facet neg
|
||||
;; (this print is to make sure only one of these facets is created)
|
||||
(printf "JEEPERS\n")
|
||||
(know (overdraft))
|
||||
(on (realize (new-transaction _ $new:Int))
|
||||
(when (not (negative? new))
|
||||
(stop neg))))))
|
||||
|
||||
(during (know (overdraft))
|
||||
(on-start (printf "know overdraft!\n"))
|
||||
(on-stop (printf "no longer in overdraft\n"))))))
|
||||
|
||||
(spawn
|
||||
(start-facet obs
|
||||
(on (asserted (balance $v))
|
||||
(printf "balance = ~a\n" v))))
|
||||
|
||||
(spawn
|
||||
(start-facet _
|
||||
(on start
|
||||
(send! (deposit 5))
|
||||
(spawn
|
||||
(start-facet _
|
||||
(on start
|
||||
(send! (deposit -5))
|
||||
(spawn
|
||||
(start-facet _
|
||||
(on start
|
||||
(send! (deposit -1))
|
||||
(spawn
|
||||
(start-facet _
|
||||
(on start
|
||||
(send! (deposit -1))
|
||||
(spawn (start-facet _ (on start (send! (deposit 10)))))))))))))))))
|
||||
)
|
|
@ -0,0 +1,48 @@
|
|||
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam vehicula
|
||||
accumsan tristique. Integer sit amet sem metus. Nam porta tempus nisl ac
|
||||
ullamcorper. Nulla interdum ante ut odio ultricies lobortis. Nam sollicitudin
|
||||
lorem quis pellentesque consequat. Aenean pulvinar diam sed nulla semper, eget
|
||||
varius tortor faucibus. Nam sodales mattis elit, ac convallis sem pretium sed.
|
||||
Aliquam nibh velit, facilisis sit amet aliquam quis, dapibus vel mauris. Cras
|
||||
pharetra arcu tortor, id pharetra massa aliquet non. Maecenas elit libero,
|
||||
malesuada nec enim ut, ornare sagittis lectus. Praesent bibendum sed magna id
|
||||
euismod. Maecenas vulputate nunc mauris, a dignissim magna volutpat consectetur.
|
||||
Fusce malesuada neque sapien, sit amet ultricies urna finibus non. Fusce
|
||||
ultrices ipsum vel ligula eleifend, eget eleifend magna interdum. Curabitur
|
||||
semper quam nunc, sed laoreet ipsum facilisis at. Etiam ut quam ac eros
|
||||
ullamcorper mattis eget vel leo.
|
||||
|
||||
Integer ac ipsum augue. Ut molestie ac mi vel varius. Praesent at est et nulla
|
||||
facilisis viverra sit amet eu augue. Nullam diam odio, elementum vehicula
|
||||
convallis id, hendrerit non magna. Suspendisse porta faucibus feugiat. In
|
||||
rhoncus semper diam eu malesuada. Suspendisse ligula metus, rhoncus eget nunc
|
||||
et, cursus rutrum sem. Fusce iaculis commodo magna, vitae viverra arcu. Fusce et
|
||||
eros et massa sollicitudin bibendum. Etiam convallis, nibh accumsan porttitor
|
||||
sollicitudin, mauris orci consectetur nisl, sit amet venenatis nulla enim eget
|
||||
risus. Phasellus quam diam, commodo in sodales eget, scelerisque sed odio. Sed
|
||||
aliquam massa vel efficitur volutpat. Mauris ut elit dictum, euismod turpis in,
|
||||
feugiat lectus.
|
||||
|
||||
Vestibulum leo est, feugiat sit amet metus nec, ullamcorper commodo purus. Sed
|
||||
non mauris non tellus ullamcorper congue interdum et mauris. Donec sit amet
|
||||
mauris urna. Sed in enim nisi. Praesent accumsan sagittis euismod. Donec vel
|
||||
nisl turpis. Ut non efficitur erat. Vestibulum quis fermentum elit. Mauris
|
||||
molestie nibh posuere fringilla rutrum. Praesent mattis tortor sapien, semper
|
||||
varius elit ultrices in.
|
||||
|
||||
Etiam non leo lacus. Cras id tincidunt ante. Donec mattis urna fermentum ex
|
||||
elementum blandit. Sed ornare vestibulum nulla luctus malesuada. Maecenas
|
||||
pulvinar metus tortor. Sed dapibus enim vel sem bibendum, sit amet tincidunt
|
||||
ligula varius. Nullam vitae augue at dui blandit cursus. Suspendisse faucibus
|
||||
posuere luctus.
|
||||
|
||||
Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos
|
||||
himenaeos. Aenean suscipit diam eu luctus auctor. Donec non magna quis ex
|
||||
tincidunt condimentum. Ut porta maximus quam, non varius sem mattis eu. Fusce
|
||||
sit amet vestibulum libero. Aliquam vestibulum sagittis mi a pellentesque. Cras
|
||||
maximus cursus libero vitae porttitor. Aenean fermentum erat eget turpis mattis,
|
||||
quis commodo magna pharetra. Praesent eu hendrerit arcu. Proin mollis, sem ac
|
||||
accumsan dignissim, velit risus ultricies mauris, eu imperdiet dolor ipsum at
|
||||
augue. Fusce bibendum, tortor eget pulvinar auctor, leo mi volutpat urna, nec
|
||||
convallis sem quam non tellus. Vestibulum fermentum sodales faucibus. Nunc quis
|
||||
feugiat quam. Donec pulvinar feugiat mauris non porttitor.
|
|
@ -0,0 +1,36 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; pong: 8339
|
||||
|
||||
(message-struct ping : Ping (v))
|
||||
(message-struct pong : Pong (v))
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U (Message (Ping Int))
|
||||
(Message (Pong Int))
|
||||
(Observe (Ping ★/t))
|
||||
(Observe (Pong ★/t))
|
||||
(Observe (Observe (Ping ★/t)))))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
(spawn ds-type
|
||||
(lift+define-role ponger
|
||||
(start-facet echo
|
||||
(on (message (ping $v))
|
||||
(send! (pong v))))))
|
||||
(spawn ds-type
|
||||
(lift+define-role pinger
|
||||
(start-facet serve
|
||||
(on (asserted (observe (ping _)))
|
||||
(send! (ping 8339)))
|
||||
(on (message (pong $x))
|
||||
(printf "pong: ~v\n" x))))))
|
||||
|
||||
(module+ test
|
||||
(verify-actors (And (Eventually (M (Ping Int)))
|
||||
(Eventually (M (Pong Int)))
|
||||
(Always (Implies (M (Ping Int))
|
||||
(Eventually (M (Pong Int))))))
|
||||
pinger
|
||||
ponger))
|
|
@ -1,8 +1,8 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
(provide a-fun)
|
||||
|
||||
(define (a-fun [x : Int] -> Int)
|
||||
(+ x 1))
|
||||
|
||||
#;(a-fun 5)
|
||||
#;(a-fun 5)
|
|
@ -0,0 +1,27 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output:
|
||||
#|
|
||||
received message bad
|
||||
realized good
|
||||
|#
|
||||
|
||||
(message-struct ping : Ping (v))
|
||||
|
||||
(define-type-alias τc
|
||||
(U (Message (Ping Symbol))
|
||||
(Observe ★/t)))
|
||||
|
||||
(run-ground-dataspace τc
|
||||
(spawn
|
||||
(start-facet _
|
||||
(on (realize (ping $v:Symbol))
|
||||
(printf "realized ~a\n" v))
|
||||
(on (message (ping $v))
|
||||
(printf "received message ~a\n" v)
|
||||
(realize! (ping 'good)))))
|
||||
|
||||
(spawn
|
||||
(start-facet _
|
||||
(on start (send! (ping 'bad)))))
|
||||
)
|
|
@ -1,13 +1,16 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
(require-struct msg #:as Msg
|
||||
#:from "driver.rkt")
|
||||
|
||||
(define m (msg 1 "hi"))
|
||||
|
||||
(msg-in m)
|
||||
(msg-out m)
|
||||
|
||||
(match m
|
||||
[(msg (bind x Int) discard)
|
||||
(displayln x)])
|
||||
|
||||
;; error: msg/checked: arity mismatch
|
||||
#;(msg 1 2 3)
|
||||
#;(msg 1 2 3)
|
|
@ -0,0 +1,12 @@
|
|||
#lang racket
|
||||
|
||||
(struct egg (size day) #:transparent)
|
||||
|
||||
(provide (except-out (struct-out egg)
|
||||
egg-size
|
||||
egg-day))
|
||||
|
||||
|
||||
(struct chicken (eggs) #:transparent)
|
||||
|
||||
(provide chicken)
|
|
@ -0,0 +1,18 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(require-struct egg #:as Egg #:from "lib.rkt" #:omit-accs)
|
||||
|
||||
(define e (egg 5 "Sun"))
|
||||
|
||||
(match e
|
||||
[(egg $sz $d)
|
||||
(displayln sz)
|
||||
(displayln d)])
|
||||
|
||||
(require-struct chicken #:as Chicken #:from "lib.rkt" #:omit-accs)
|
||||
|
||||
(define c (chicken (list e e e)))
|
||||
|
||||
(match c
|
||||
[(chicken $eggs)
|
||||
(displayln eggs)])
|
|
@ -0,0 +1,5 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(require/typed "lib.rkt" [x : Int])
|
||||
|
||||
(displayln (+ x 1))
|
|
@ -0,0 +1,8 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(require/typed "lib.rkt"
|
||||
[#:opaque Vec #:arity = 3]
|
||||
[ones : (Vec Int Int Int)]
|
||||
[vec+ : (→fn (Vec Int Int Int) (Vec Int Int Int) (Vec Int Int Int))])
|
||||
|
||||
(vec+ ones ones)
|
|
@ -0,0 +1,8 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(require/typed "lib.rkt"
|
||||
[#:opaque Vec]
|
||||
[ones : Vec]
|
||||
[vec+ : (→fn Vec Vec Vec)])
|
||||
|
||||
(vec+ ones ones)
|
|
@ -0,0 +1,13 @@
|
|||
#lang racket
|
||||
|
||||
(provide ones
|
||||
vec+)
|
||||
|
||||
(struct vec (x y z) #:transparent)
|
||||
|
||||
(define ones (vec 1 1 1))
|
||||
|
||||
(define (vec+ v1 v2)
|
||||
(vec (+ (vec-x v1) (vec-x v2))
|
||||
(+ (vec-y v1) (vec-y v2))
|
||||
(+ (vec-z v1) (vec-z v2))))
|
|
@ -0,0 +1,5 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(require "provides.rkt")
|
||||
|
||||
(a-fun 5)
|
|
@ -1,57 +0,0 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
;; Expected Output
|
||||
;; 0
|
||||
;; 70
|
||||
;; #f
|
||||
|
||||
(define-constructor (account balance)
|
||||
#:type-constructor AccountT
|
||||
#:with Account (AccountT Int)
|
||||
#:with AccountRequest (AccountT ★/t))
|
||||
|
||||
(define-constructor (deposit amount)
|
||||
#:type-constructor DepositT
|
||||
#:with Deposit (DepositT Int)
|
||||
#:with DepositRequest (DepositT ★/t))
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U Account
|
||||
(Observe AccountRequest)
|
||||
(Observe (Observe AccountRequest))
|
||||
Deposit
|
||||
(Observe DepositRequest)
|
||||
(Observe (Observe DepositRequest))))
|
||||
|
||||
(define-type-alias account-manager-role
|
||||
(Role (account-manager)
|
||||
(Shares Account)
|
||||
(Reacts (Know (Deposit Int)))))
|
||||
|
||||
(define-type-alias client-role
|
||||
(Role (client)
|
||||
(Reacts (Know Account))))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
|
||||
(spawn ds-type
|
||||
(print-role
|
||||
(start-facet account-manager
|
||||
(field [balance Int 0])
|
||||
(assert (account (ref balance)))
|
||||
(on (asserted (deposit (bind amount Int)))
|
||||
(set! balance (+ (ref balance) amount))))))
|
||||
|
||||
(spawn ds-type
|
||||
(print-role
|
||||
(start-facet observer
|
||||
(on (asserted (account (bind amount Int)))
|
||||
(displayln amount)))))
|
||||
|
||||
(spawn ds-type
|
||||
(print-role
|
||||
(start-facet buyer
|
||||
(on (asserted (observe (deposit discard)))
|
||||
(start-facet deposits
|
||||
(assert (deposit 100))
|
||||
(assert (deposit -30))))))))
|
|
@ -1,20 +0,0 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
;; Expected Output
|
||||
;; pong: 8339
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U (Message (Tuple String Int))
|
||||
(Observe (Tuple String ★/t))))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
(spawn ds-type
|
||||
(start-facet echo
|
||||
(on (message (tuple "ping" (bind x Int)))
|
||||
(send! (tuple "pong" x)))))
|
||||
(spawn ds-type
|
||||
(start-facet serve
|
||||
(on start
|
||||
(send! (tuple "ping" 8339)))
|
||||
(on (message (tuple "pong" (bind x Int)))
|
||||
(printf "pong: ~v\n" x)))))
|
|
@ -1,5 +0,0 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(require/typed "lib.rkt" [x : Int])
|
||||
|
||||
(displayln (+ x 1))
|
|
@ -1,5 +0,0 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(require "provides.rkt")
|
||||
|
||||
(a-fun 5)
|
|
@ -1,148 +0,0 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
;; Expected Output
|
||||
;; Completed Order:
|
||||
;; Catch 22
|
||||
;; 10001483
|
||||
;; March 9th
|
||||
|
||||
(define-constructor (price v)
|
||||
#:type-constructor PriceT
|
||||
#:with Price (PriceT Int))
|
||||
|
||||
(define-constructor (out-of-stock)
|
||||
#:type-constructor OutOfStockT
|
||||
#:with OutOfStock (OutOfStockT))
|
||||
|
||||
(define-type-alias QuoteAnswer
|
||||
(U Price OutOfStock))
|
||||
|
||||
(define-constructor (quote title answer)
|
||||
#:type-constructor QuoteT
|
||||
#:with Quote (QuoteT String QuoteAnswer)
|
||||
#:with QuoteRequest (Observe (QuoteT String ★/t))
|
||||
#:with QuoteInterest (Observe (QuoteT ★/t ★/t)))
|
||||
|
||||
(define-constructor (split-proposal title price contribution accepted)
|
||||
#:type-constructor SplitProposalT
|
||||
#:with SplitProposal (SplitProposalT String Int Int Bool)
|
||||
#:with SplitRequest (Observe (SplitProposalT String Int Int ★/t))
|
||||
#:with SplitInterest (Observe (SplitProposalT ★/t ★/t ★/t ★/t)))
|
||||
|
||||
(define-constructor (order-id id)
|
||||
#:type-constructor OrderIdT
|
||||
#:with OrderId (OrderIdT Int))
|
||||
|
||||
(define-constructor (delivery-date date)
|
||||
#:type-constructor DeliveryDateT
|
||||
#:with DeliveryDate (DeliveryDateT String))
|
||||
|
||||
(define-type-alias (Maybe t)
|
||||
(U t Bool))
|
||||
|
||||
(define-constructor (order title price id delivery-date)
|
||||
#:type-constructor OrderT
|
||||
#:with Order (OrderT String Int (Maybe OrderId) (Maybe DeliveryDate))
|
||||
#:with OrderRequest (Observe (OrderT String Int ★/t ★/t))
|
||||
#:with OrderInterest (Observe (OrderT ★/t ★/t ★/t ★/t)))
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U ;; quotes
|
||||
Quote
|
||||
QuoteRequest
|
||||
(Observe QuoteInterest)
|
||||
;; splits
|
||||
SplitProposal
|
||||
SplitRequest
|
||||
(Observe SplitInterest)
|
||||
;; orders
|
||||
Order
|
||||
OrderRequest
|
||||
(Observe OrderInterest)))
|
||||
|
||||
(define-type-alias seller-role
|
||||
(Role (seller)
|
||||
(Reacts (Know (Observe (QuoteT String ★/t)))
|
||||
(Role (_)
|
||||
(Shares (QuoteT String Int))))))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
|
||||
;; seller
|
||||
(spawn ds-type
|
||||
(start-facet _
|
||||
(field [book (Tuple String Int) (tuple "Catch 22" 22)]
|
||||
[next-order-id Int 10001483])
|
||||
(on (asserted (observe (quote (bind title String) discard)))
|
||||
(start-facet x
|
||||
(on (retracted (observe (quote title discard)))
|
||||
(stop x))
|
||||
(match title
|
||||
["Catch 22"
|
||||
(assert (quote title (price 22)))]
|
||||
[discard
|
||||
(assert (quote title (out-of-stock)))])))
|
||||
(on (asserted (observe (order (bind title String) (bind offer Int) discard discard)))
|
||||
(start-facet x
|
||||
(on (retracted (observe (order title offer discard discard)))
|
||||
(stop x))
|
||||
(let ([asking-price 22])
|
||||
(if (and (equal? title "Catch 22") (>= offer asking-price))
|
||||
(let ([id (ref next-order-id)])
|
||||
(set! next-order-id (+ 1 id))
|
||||
(assert (order title offer (order-id id) (delivery-date "March 9th"))))
|
||||
(assert (order title offer #f #f))))))))
|
||||
|
||||
;; buyer A
|
||||
(spawn ds-type
|
||||
(start-facet buyer
|
||||
(field [title String "Catch 22"]
|
||||
[budget Int 1000])
|
||||
(on (asserted (quote (ref title) (bind answer QuoteAnswer)))
|
||||
(match answer
|
||||
[(out-of-stock)
|
||||
(stop buyer)]
|
||||
[(price (bind amount Int))
|
||||
(start-facet negotiation
|
||||
(field [contribution Int (/ amount 2)])
|
||||
(on (asserted (split-proposal (ref title) amount (ref contribution) (bind accept? Bool)))
|
||||
(if accept?
|
||||
(stop buyer)
|
||||
(if (> (ref contribution) (- amount 5))
|
||||
(stop negotiation (displayln "negotiation failed"))
|
||||
(set! contribution
|
||||
(+ (ref contribution) (/ (- amount (ref contribution)) 2)))))))]))))
|
||||
|
||||
;; buyer B
|
||||
(spawn ds-type
|
||||
(start-facet buyer-b
|
||||
(field [funds Int 5])
|
||||
(on (asserted (observe (split-proposal (bind title String) (bind price Int) (bind their-contribution Int) discard)))
|
||||
(let ([my-contribution (- price their-contribution)])
|
||||
(cond
|
||||
[(> my-contribution (ref funds))
|
||||
(start-facet decline
|
||||
(assert (split-proposal title price their-contribution #f))
|
||||
(on (retracted (observe (split-proposal title price their-contribution discard)))
|
||||
(stop decline)))]
|
||||
[#t
|
||||
(start-facet accept
|
||||
(assert (split-proposal title price their-contribution #t))
|
||||
(on (retracted (observe (split-proposal title price their-contribution discard)))
|
||||
(stop accept))
|
||||
(on start
|
||||
(spawn ds-type
|
||||
(start-facet purchase
|
||||
(on (asserted (order title price (bind order-id? (Maybe OrderId)) (bind delivery-date? (Maybe DeliveryDate))))
|
||||
(match (tuple order-id? delivery-date?)
|
||||
[(tuple (order-id (bind id Int)) (delivery-date (bind date String)))
|
||||
;; complete!
|
||||
(begin (displayln "Completed Order:")
|
||||
(displayln title)
|
||||
(displayln id)
|
||||
(displayln date)
|
||||
(stop purchase))]
|
||||
[discard
|
||||
(begin (displayln "Order Rejected")
|
||||
(stop purchase))]))))))])))))
|
||||
)
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; f: 0
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
(run-ground-dataspace Int
|
||||
(spawn Int
|
|
@ -0,0 +1,33 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; +parent
|
||||
;; +GO
|
||||
;; +ready
|
||||
;; -parent
|
||||
;; -GO
|
||||
;; -ready
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U (Tuple String) (Observe (Tuple ★/t))))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
(spawn ds-type
|
||||
(start-facet parent
|
||||
(assert (tuple "parent"))
|
||||
(during/spawn (tuple "GO")
|
||||
(assert (tuple "ready")))
|
||||
(on (asserted (tuple "ready"))
|
||||
(stop parent))))
|
||||
(spawn ds-type
|
||||
(start-facet flag
|
||||
(assert (tuple "GO"))
|
||||
(on (retracted (tuple "parent"))
|
||||
(stop flag))))
|
||||
(spawn ds-type
|
||||
(start-facet obs
|
||||
(during (tuple (bind s String))
|
||||
(on start
|
||||
(printf "+~a\n" s))
|
||||
(on stop
|
||||
(printf "-~a\n" s))))))
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; +GO
|
|
@ -0,0 +1,36 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; adding key2 -> 88
|
||||
;; adding key1 -> 18
|
||||
;; size: 0
|
||||
;; size: 2
|
||||
;; removing key2
|
||||
;; adding key2 -> 99
|
||||
|
||||
(assertion-struct output : Output (v))
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U (Tuple String Int)
|
||||
(Output Int)
|
||||
(Observe ★/t)))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
(spawn ds-type
|
||||
(start-facet querier
|
||||
(define/query-hash key# (tuple (bind k String) (bind v Int)) k v
|
||||
#:on-add (printf "adding ~a -> ~a\n" k v)
|
||||
#:on-remove (printf "removing ~a\n" k))
|
||||
(assert (output (hash-count (ref key#))))))
|
||||
(spawn ds-type
|
||||
(start-facet client
|
||||
(assert (tuple "key1" 18))
|
||||
(on start
|
||||
(start-facet tmp
|
||||
(field [v Int 88])
|
||||
(assert (tuple "key2" (ref v)))
|
||||
(on (asserted (output 2))
|
||||
(set! v 99))))
|
||||
(during (output (bind v Int))
|
||||
(on start
|
||||
(printf "size: ~v\n" v))))))
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; size: 0
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output
|
||||
;; query: 0
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
;; Expected Output:
|
||||
;; +42
|
|
@ -0,0 +1,7 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(require "typed-out.rkt")
|
||||
|
||||
(define c : (Cow Int) (cow 5))
|
||||
|
||||
(cow-moos c)
|
|
@ -0,0 +1,7 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(require "struct-out.rkt")
|
||||
|
||||
(happy-days (happy 5))
|
||||
|
||||
(define classic : (Happy Int) (happy 100))
|
|
@ -0,0 +1,5 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(provide (struct-out happy))
|
||||
|
||||
(define-constructor* (happy : Happy days))
|
|
@ -0,0 +1,5 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(require-struct cow #:as Cow #:from "untyped.rkt")
|
||||
|
||||
(provide (struct-out cow))
|
|
@ -0,0 +1,5 @@
|
|||
#lang racket
|
||||
|
||||
(provide (struct-out cow))
|
||||
|
||||
(struct cow (moos) #:transparent)
|
|
@ -20,14 +20,14 @@
|
|||
(define-constructor (quote title answer)
|
||||
#:type-constructor QuoteT
|
||||
#:with Quote (QuoteT String QuoteAnswer)
|
||||
#:with QuoteRequest (Observe (QuoteT String ★))
|
||||
#:with QuoteInterest (Observe (QuoteT ★ ★)))
|
||||
#:with QuoteRequest (Observe (QuoteT String ★/t))
|
||||
#:with QuoteInterest (Observe (QuoteT ★/t ★/t)))
|
||||
|
||||
(define-constructor (split-proposal title price contribution accepted)
|
||||
#:type-constructor SplitProposalT
|
||||
#:with SplitProposal (SplitProposalT String Int Int Bool)
|
||||
#:with SplitRequest (Observe (SplitProposalT String Int Int ★))
|
||||
#:with SplitInterest (Observe (SplitProposalT ★ ★ ★ ★)))
|
||||
#:with SplitRequest (Observe (SplitProposalT String Int Int ★/t))
|
||||
#:with SplitInterest (Observe (SplitProposalT ★/t ★/t ★/t ★/t)))
|
||||
|
||||
(define-constructor (order-id id)
|
||||
#:type-constructor OrderIdT
|
||||
|
@ -40,11 +40,11 @@
|
|||
(define-type-alias (Maybe t)
|
||||
(U t Bool))
|
||||
|
||||
(define-constructor (order title price id delivery-date)
|
||||
(define-constructor (order title price oid delivery-date)
|
||||
#:type-constructor OrderT
|
||||
#:with Order (OrderT String Int (Maybe OrderId) (Maybe DeliveryDate))
|
||||
#:with OrderRequest (Observe (OrderT String Int ★ ★))
|
||||
#:with OrderInterest (Observe (OrderT ★ ★ ★ ★)))
|
||||
#:with OrderRequest (Observe (OrderT String Int ★/t ★/t))
|
||||
#:with OrderInterest (Observe (OrderT ★/t ★/t ★/t ★/t)))
|
||||
|
||||
(define-type-alias ds-type
|
||||
(U ;; quotes
|
||||
|
@ -60,88 +60,104 @@
|
|||
OrderRequest
|
||||
(Observe OrderInterest)))
|
||||
|
||||
(dataspace ds-type
|
||||
(define-type-alias seller-role
|
||||
(Role (seller)
|
||||
(During (Observe (QuoteT String ★/t))
|
||||
(Shares (QuoteT String QuoteAnswer)))
|
||||
#;(Reacts (Asserted (Observe (QuoteT String ★/t)))
|
||||
(Role (_)
|
||||
;; QuoteAnswer was originally, erroneously, Int
|
||||
(Shares (QuoteT String QuoteAnswer))))))
|
||||
|
||||
(run-ground-dataspace ds-type
|
||||
|
||||
;; seller
|
||||
(spawn ds-type
|
||||
(facet _
|
||||
(fields [book (Tuple String Int) (tuple "Catch 22" 22)]
|
||||
[next-order-id Int 10001483])
|
||||
(on (asserted (observe (quote (bind title String) discard)))
|
||||
(facet x
|
||||
(fields)
|
||||
(on (retracted (observe (quote title discard)))
|
||||
(stop x (begin)))
|
||||
(match title
|
||||
["Catch 22"
|
||||
(assert (quote title (price 22)))]
|
||||
[discard
|
||||
(assert (quote title (out-of-stock)))])))
|
||||
(on (asserted (observe (order (bind title String) (bind offer Int) discard discard)))
|
||||
(facet x
|
||||
(fields)
|
||||
(on (retracted (observe (order title offer discard discard)))
|
||||
(stop x (begin)))
|
||||
(let [asking-price 22]
|
||||
(if (and (equal? title "Catch 22") (>= offer asking-price))
|
||||
(let [id (ref next-order-id)]
|
||||
(begin (set! next-order-id (+ 1 id))
|
||||
(assert (order title offer (order-id id) (delivery-date "March 9th")))))
|
||||
(assert (order title offer #f #f))))))))
|
||||
(lift+define-role seller-impl
|
||||
(start-facet _ ;; #:implements seller-role
|
||||
(field [book (Tuple String Int) (tuple "Catch 22" 22)]
|
||||
[next-order-id Int 10001483])
|
||||
(on (asserted (observe (quote (bind title String) discard)))
|
||||
(start-facet x
|
||||
(on (retracted (observe (quote title discard)))
|
||||
(stop x))
|
||||
(define answer
|
||||
(match title
|
||||
["Catch 22"
|
||||
(price 22)]
|
||||
[_
|
||||
(out-of-stock)]))
|
||||
(assert (quote title answer))))
|
||||
(on (asserted (observe (order (bind title String) (bind offer Int) discard discard)))
|
||||
(start-facet x
|
||||
(on (retracted (observe (order title offer discard discard)))
|
||||
(stop x))
|
||||
(let ([asking-price 22])
|
||||
(if (and (equal? title "Catch 22") (>= offer asking-price))
|
||||
(let ([id (ref next-order-id)])
|
||||
(set! next-order-id (+ 1 id))
|
||||
(assert (order title offer (order-id id) (delivery-date "March 9th"))))
|
||||
(assert (order title offer #f #f)))))))))
|
||||
|
||||
;; buyer A
|
||||
(spawn ds-type
|
||||
(facet buyer
|
||||
(fields [title String "Catch 22"]
|
||||
[budget Int 1000])
|
||||
(on (asserted (quote (ref title) (bind answer QuoteAnswer)))
|
||||
(match answer
|
||||
[(out-of-stock)
|
||||
(stop buyer (begin))]
|
||||
[(price (bind amount Int))
|
||||
(facet negotiation
|
||||
(fields [contribution Int (/ amount 2)])
|
||||
(on (asserted (split-proposal (ref title) amount (ref contribution) (bind accept? Bool)))
|
||||
(if accept?
|
||||
(stop buyer (begin))
|
||||
(if (> (ref contribution) (- amount 5))
|
||||
(stop negotiation (displayln "negotiation failed"))
|
||||
(set! contribution
|
||||
(+ (ref contribution) (/ (- amount (ref contribution)) 2)))))))]))))
|
||||
(lift+define-role buyer-a-impl
|
||||
(start-facet buyer
|
||||
(field [title String "Catch 22"]
|
||||
[budget Int 1000])
|
||||
(on (asserted (quote (ref title) (bind answer QuoteAnswer)))
|
||||
(match answer
|
||||
[(out-of-stock)
|
||||
(stop buyer)]
|
||||
[(price (bind amount Int))
|
||||
(start-facet negotiation
|
||||
(field [contribution Int (/ amount 2)])
|
||||
(on (asserted (split-proposal (ref title) amount (ref contribution) (bind accept? Bool)))
|
||||
(if accept?
|
||||
(stop buyer)
|
||||
(if (> (ref contribution) (- amount 5))
|
||||
(stop negotiation (displayln "negotiation failed"))
|
||||
(set! contribution
|
||||
(+ (ref contribution) (/ (- amount (ref contribution)) 2)))))))])))))
|
||||
|
||||
;; buyer B
|
||||
(spawn ds-type
|
||||
(facet buyer-b
|
||||
(fields [funds Int 5])
|
||||
(on (asserted (observe (split-proposal (bind title String) (bind price Int) (bind their-contribution Int) discard)))
|
||||
(let [my-contribution (- price their-contribution)]
|
||||
(cond
|
||||
[(> my-contribution (ref funds))
|
||||
(facet decline
|
||||
(fields)
|
||||
(assert (split-proposal title price their-contribution #f))
|
||||
(on (retracted (observe (split-proposal title price their-contribution discard)))
|
||||
(stop decline (begin))))]
|
||||
[#t
|
||||
(facet accept
|
||||
(fields)
|
||||
(assert (split-proposal title price their-contribution #t))
|
||||
(on (retracted (observe (split-proposal title price their-contribution discard)))
|
||||
(stop accept (begin)))
|
||||
(on start
|
||||
(spawn ds-type
|
||||
(facet purchase
|
||||
(fields)
|
||||
(on (asserted (order title price (bind order-id? (Maybe OrderId)) (bind delivery-date? (Maybe DeliveryDate))))
|
||||
(match (tuple order-id? delivery-date?)
|
||||
[(tuple (order-id (bind id Int)) (delivery-date (bind date String)))
|
||||
;; complete!
|
||||
(begin (displayln "Completed Order:")
|
||||
(displayln title)
|
||||
(displayln id)
|
||||
(displayln date)
|
||||
(stop purchase (begin)))]
|
||||
[discard
|
||||
(begin (displayln "Order Rejected")
|
||||
(stop purchase (begin)))]))))))])))))
|
||||
)
|
||||
(lift+define-role buyer-b-impl
|
||||
(start-facet buyer-b
|
||||
(field [funds Int 5])
|
||||
(on (asserted (observe (split-proposal (bind title String) (bind price Int) (bind their-contribution Int) discard)))
|
||||
(let ([my-contribution (- price their-contribution)])
|
||||
(cond
|
||||
[(> my-contribution (ref funds))
|
||||
(start-facet decline
|
||||
(assert (split-proposal title price their-contribution #f))
|
||||
(on (retracted (observe (split-proposal title price their-contribution discard)))
|
||||
(stop decline)))]
|
||||
[#t
|
||||
(start-facet accept
|
||||
(assert (split-proposal title price their-contribution #t))
|
||||
(on (retracted (observe (split-proposal title price their-contribution discard)))
|
||||
(stop accept))
|
||||
(on start
|
||||
(spawn ds-type
|
||||
(start-facet purchase
|
||||
(on (asserted (order title price (bind order-id? (Maybe OrderId)) (bind delivery-date? (Maybe DeliveryDate))))
|
||||
(match (tuple order-id? delivery-date?)
|
||||
[(tuple (order-id (bind id Int)) (delivery-date (bind date String)))
|
||||
;; complete!
|
||||
(begin (displayln "Completed Order:")
|
||||
(displayln title)
|
||||
(displayln id)
|
||||
(displayln date)
|
||||
(stop purchase))]
|
||||
[discard
|
||||
(begin (displayln "Order Rejected")
|
||||
(stop purchase))]))))))]))))))
|
||||
)
|
||||
|
||||
(module+ test
|
||||
(check-simulates seller-impl seller-impl)
|
||||
;; found a bug in spec, see seller-role above
|
||||
(check-simulates seller-impl seller-role)
|
||||
(check-simulates buyer-a-impl buyer-a-impl)
|
||||
(check-simulates buyer-b-impl buyer-b-impl))
|
||||
|
|
|
@ -0,0 +1,12 @@
|
|||
#lang info
|
||||
|
||||
(define scribblings '(("scribblings/typed-syndicate.scrbl" ())))
|
||||
|
||||
(define compile-omit-paths
|
||||
'("examples"
|
||||
"tests"))
|
||||
|
||||
(define test-omit-paths
|
||||
;; a number of the examples use SPIN for model checking which I need
|
||||
;; to figure out how to get working on the package server
|
||||
'("examples/"))
|
|
@ -0,0 +1,174 @@
|
|||
/* Useful macros */
|
||||
|
||||
#define ASSERTED(x) (x##_assertions > 0)
|
||||
#define ASSERT(x) x##_assertions = x##_assertions + 1
|
||||
#define RETRACT(x) x##_assertions = x##_assertions - 1
|
||||
|
||||
/* Global stuff */
|
||||
|
||||
/* Book Quote */
|
||||
int BQ_assertions = 0;
|
||||
int IBQ_assertions = 0;
|
||||
int IIBQ_assertions = 0;
|
||||
|
||||
/* Book Interest */
|
||||
int BI_assertions = 0;
|
||||
int IBI_assertions = 0;
|
||||
int IIBI_assertions = 0;
|
||||
|
||||
/* Club Members */
|
||||
int CM_assertions = 0;
|
||||
int ICM_assertions = 0;
|
||||
|
||||
/* Announcements */
|
||||
int BoTM_assertions = 0;
|
||||
|
||||
/* Seller stuff */
|
||||
mtype = { seller, seller_during};
|
||||
|
||||
active proctype Seller() {
|
||||
mtype current_state = seller;
|
||||
bool asserting_IIBQ = true;
|
||||
bool asserting_BQ = false;
|
||||
bool know_IBQ = false;
|
||||
ASSERT(IIBQ);
|
||||
do
|
||||
:: current_state == seller ->
|
||||
if
|
||||
:: ASSERTED(IBQ) && !know_IBQ ->
|
||||
current_state = seller_during;
|
||||
asserting_BQ = true;
|
||||
ASSERT(BQ);
|
||||
fi;
|
||||
know_IBQ = ASSERTED(IBQ);
|
||||
:: current_state == seller_during ->
|
||||
if
|
||||
:: !ASSERTED(IBQ) && know_IBQ ->
|
||||
current_state = seller;
|
||||
asserting_BQ = false;
|
||||
RETRACT(BQ);
|
||||
fi;
|
||||
know_IBQ = ASSERTED(IBQ);
|
||||
od;
|
||||
}
|
||||
|
||||
mtype = { get_quotes, announce, poll, none };
|
||||
mtype leader_state = get_quotes;
|
||||
|
||||
active proctype Leader() {
|
||||
bool asserting_IBI = false;
|
||||
bool asserting_BoTM = false;
|
||||
bool asserting_IBQ = true;
|
||||
bool asserting_ICM = true;
|
||||
bool know_BQ = false;
|
||||
bool know_BI = false;
|
||||
ASSERT(IBQ);
|
||||
ASSERT(ICM);
|
||||
do
|
||||
:: leader_state == get_quotes ->
|
||||
if
|
||||
:: ASSERTED(BQ) && !know_BQ ->
|
||||
leader_state = poll;
|
||||
asserting_IBI = true;
|
||||
ASSERT(IBI);
|
||||
:: ASSERTED(BQ) && !know_BQ ->
|
||||
leader_state = none;
|
||||
asserting_IBQ = false;
|
||||
asserting_ICM = false;
|
||||
RETRACT(IBQ);
|
||||
RETRACT(ICM);
|
||||
fi;
|
||||
know_BQ = ASSERTED(BQ)
|
||||
:: leader_state == announce ->
|
||||
skip;
|
||||
:: leader_state == poll ->
|
||||
if
|
||||
:: ASSERTED(BI) && !know_BI ->
|
||||
leader_state = get_quotes;
|
||||
assert(asserting_IBI);
|
||||
asserting_IBI = false;
|
||||
RETRACT(IBI);
|
||||
:: ASSERTED(BI) && !know_BI ->
|
||||
leader_state = announce;
|
||||
assert(asserting_IBI);
|
||||
asserting_IBI = false;
|
||||
RETRACT(IBI);
|
||||
asserting_BoTM = true;
|
||||
ASSERT(BoTM);
|
||||
:: ASSERTED(BI) && !know_BI ->
|
||||
leader_state = none;
|
||||
assert(asserting_IBI);
|
||||
asserting_IBQ = false;
|
||||
asserting_ICM = false;
|
||||
asserting_IBI = false;
|
||||
RETRACT(IBQ);
|
||||
RETRACT(ICM);
|
||||
RETRACT(IBI);
|
||||
:: ASSERTED(BQ) && !know_BQ ->
|
||||
leader_state = none;
|
||||
assert(asserting_IBI);
|
||||
asserting_IBQ = false;
|
||||
asserting_ICM = false;
|
||||
asserting_IBI = false;
|
||||
RETRACT(IBQ);
|
||||
RETRACT(ICM);
|
||||
RETRACT(IBI);
|
||||
fi;
|
||||
know_BI = ASSERTED(BI);
|
||||
know_BQ = ASSERTED(BQ);
|
||||
:: leader_state == none ->
|
||||
skip;
|
||||
od
|
||||
}
|
||||
|
||||
mtype = { member, during_member };
|
||||
|
||||
active proctype Member() {
|
||||
mtype current_state = member;
|
||||
bool asserting_BI = false;
|
||||
bool asserting_IIBI = true;
|
||||
bool asserting_CM = true;
|
||||
ASSERT(IIBI);
|
||||
ASSERT(CM);
|
||||
bool know_IBI = false;
|
||||
do
|
||||
:: current_state == member ->
|
||||
if
|
||||
:: ASSERTED(IBI) && !know_IBI ->
|
||||
current_state = during_member;
|
||||
asserting_BI = true;
|
||||
ASSERT(BI);
|
||||
fi;
|
||||
know_IBI = ASSERTED(IBI);
|
||||
:: current_state == during_member ->
|
||||
if
|
||||
:: !ASSERTED(IBI) && know_IBI ->
|
||||
current_state = member;
|
||||
asserting_BI = false;
|
||||
RETRACT(BI);
|
||||
fi;
|
||||
know_IBI = ASSERTED(IBI);
|
||||
od
|
||||
}
|
||||
|
||||
ltl sanity {
|
||||
[](BQ_assertions >= 0 &&
|
||||
IBQ_assertions >= 0 &&
|
||||
IIBQ_assertions >= 0 &&
|
||||
BI_assertions >= 0 &&
|
||||
IBI_assertions >= 0 &&
|
||||
IIBI_assertions >= 0 &&
|
||||
CM_assertions >= 0 &&
|
||||
ICM_assertions >= 0 &&
|
||||
BoTM_assertions >= 0)
|
||||
&&
|
||||
<> (BQ_assertions > 0)
|
||||
&&
|
||||
[] (ASSERTED(IBQ) -> <> ASSERTED(BQ))
|
||||
&&
|
||||
[] (ASSERTED(IBI) -> <> ASSERTED(BI))
|
||||
/*
|
||||
&&
|
||||
<> (leader_state == announce || leader_state == none)
|
||||
*/
|
||||
}
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,776 @@
|
|||
#lang scribble/manual
|
||||
|
||||
@(require (for-label (only-in racket struct)
|
||||
typed/syndicate/roles)
|
||||
(prefix-in racket: (for-label racket))
|
||||
(prefix-in untyped: (for-label syndicate/actor)))
|
||||
|
||||
@title{Typed Syndicate}
|
||||
|
||||
|
||||
@defmodule[typed/syndicate/roles]
|
||||
|
||||
@section{Overview}
|
||||
|
||||
@section{Types}
|
||||
|
||||
@deftogether[(@defidform[Int]
|
||||
@defidform[Bool]
|
||||
@defidform[String]
|
||||
@defidform[ByteString]
|
||||
@defidform[Symbol])]{
|
||||
Base types.
|
||||
}
|
||||
|
||||
@defform[(U type ...)]{
|
||||
The type representing the union of @racket[type ...].
|
||||
}
|
||||
|
||||
@defidform[⊥]{
|
||||
An alias for @racket[(U)].
|
||||
}
|
||||
|
||||
@defidform[★/t]{
|
||||
The type representing any possible assertion, and, in an @racket[AssertionSet],
|
||||
the possibility for an infinite set of assertions.
|
||||
}
|
||||
|
||||
@defidform[Discard]{
|
||||
The type of @racket[_] patterns.
|
||||
}
|
||||
|
||||
@defform[(Bind type)]{
|
||||
The type of @racket[$] patterns.
|
||||
}
|
||||
|
||||
@defidform[FacetName]{
|
||||
The type associated with identifiers bound by @racket[start-facet].
|
||||
}
|
||||
|
||||
@defform[(Role (x) type ...)]{
|
||||
The type of a facet named @racket[x] and endpoints described by @racket[type
|
||||
...].
|
||||
}
|
||||
|
||||
@defform[(Stop X type ...)]{
|
||||
The type of a @racket[stop] action.
|
||||
}
|
||||
|
||||
@defform[(Field type)]{
|
||||
The type of a field containing values of @racket[type].
|
||||
}
|
||||
|
||||
|
||||
@defform[(Shares type)]{
|
||||
The type of an @racket[assert] endpoint.
|
||||
}
|
||||
|
||||
@defform[#:literals (OnStart OnStop Asserted Retracted)
|
||||
(Reacts EventDesc type ...)
|
||||
#:grammar
|
||||
[(EventDesc (code:line OnStart)
|
||||
(code:line OnStart)
|
||||
(code:line (Asserted event-type))
|
||||
(code:line (Retracted event-type)))]]{
|
||||
The type of a @racket[on] endpoint that reacts to events described by
|
||||
@racket[EventDesc] with the behavior given by @racket[type ...].
|
||||
}
|
||||
|
||||
@deftogether[(@defidform[OnStart]
|
||||
@defidform[OnStop]
|
||||
@defform[(Asserted type)]
|
||||
@defform[(Retracted type)])]{
|
||||
See @racket[Reacts].
|
||||
}
|
||||
|
||||
@defform[(Actor type)]{
|
||||
The type of an actor that operates in a dataspace with a certain communication
|
||||
@racket[type].
|
||||
}
|
||||
|
||||
@defform[(ActorWithRole comm-type behavior-type)]{
|
||||
An @racket[Actor] type with the additional @racket[behavior-type] describing the
|
||||
actor's behavior in terms of a @racket[Role].
|
||||
}
|
||||
|
||||
@defform[(Sends type)]{
|
||||
The type of a @racket[send!] action.
|
||||
}
|
||||
|
||||
@defform[(Realize type)]{
|
||||
The type of a @racket[realize!] action.
|
||||
}
|
||||
|
||||
@deftogether[(@defform[(Branch type ...)]
|
||||
@defform[(Effs type ...)])]{
|
||||
Types that may arise in descriptions in @racket[Role] types due to branching and
|
||||
sequencing.
|
||||
}
|
||||
|
||||
@defform[(Tuple type ...)]{
|
||||
The type of @racket[tuple] expressions.
|
||||
}
|
||||
|
||||
@defidform[Unit]{
|
||||
An alias for @racket[(Tuple)].
|
||||
}
|
||||
|
||||
@defform[(AssertionSet type)]{
|
||||
The type for a set of assertions of a certain @racket[type]. Note that these are
|
||||
not interoperable with the general purpose @racket[set] data structures.
|
||||
}
|
||||
|
||||
@defform[(∀ (X ...) type)]{
|
||||
Universal quantification over types.
|
||||
}
|
||||
|
||||
@defform[#:literals (Computation Value Endpoints Roles Spawns)
|
||||
(→ type ... (Computation (Value result-type)
|
||||
(Endpoints ep-type ...)
|
||||
(Roles role-type ...)
|
||||
(Spawns spawn-type ...)))]{
|
||||
The type of a function with parameters @racket[type ...] that returns @racket[result-type]. The type includes the effects of any actions performed by the function:
|
||||
@itemlist[
|
||||
@item{@racket[Endpoints]: includes any endpoint installation effects, such as from @racket[assert] and @racket[on].}
|
||||
@item{@racket[Roles]: includes any script action effects, such as from @racket[start-facet], @racket[stop], and @racket[send!].}
|
||||
@item{@racket[Spawns]: includes descriptions of any @racket[spawn] actions.}
|
||||
]
|
||||
}
|
||||
|
||||
@defform[(→fn type-in ... type-out)]{
|
||||
Shorthand for a @racket[→] type with no effects.
|
||||
}
|
||||
|
||||
@defform[(proc maybe-quantifiers type-in ... maybe-arrow type-out
|
||||
maybe-endpoints
|
||||
maybe-roles
|
||||
maybe-spawns)
|
||||
#:grammar
|
||||
[(maybe-quantifiers (code:line)
|
||||
(code:line #:forall (X ...)))
|
||||
(maybe-arrow (code:line)
|
||||
(code:line →)
|
||||
(code:line ->))
|
||||
(maybe-endpoints (code:line)
|
||||
(code:line #:endpoints (e ...)))
|
||||
(maybe-roles (code:line)
|
||||
(code:line #:roles (r ...)))
|
||||
(maybe-spawns (code:line)
|
||||
(code:line #:spawns (s ...)))]]{
|
||||
A more convenient notation for writing (potentially polymorphic) function types
|
||||
with effects. Shorthand for @racket[(∀ (X ...) (→ type-in ... (Computation
|
||||
(Value type-out) (Endpoints e ...) (Roles r ...) (Spawns s ...))))].
|
||||
}
|
||||
|
||||
@deftogether[(@defform[(Computation type ...)]
|
||||
@defform[(Value type)]
|
||||
@defform[(Endpoints type)]
|
||||
@defform[(Roles type)]
|
||||
@defform[(Spawns type)])]{
|
||||
See @racket[→].
|
||||
}
|
||||
|
||||
@section{User Defined Types}
|
||||
|
||||
@defform*[[(define-type-alias id type)
|
||||
(define-type-alias (ty-cons-id arg-id ...) type)]]{
|
||||
Define @racket[id] to be the same as @racket[type], or create a type constructor
|
||||
@racket[(ty-cons-id ty ...)] whose meaning is @racket[type] with references to
|
||||
@racket[arg-id ...] replaced by @racket[ty ...].
|
||||
}
|
||||
|
||||
@defform[(define-constructor (ctor-id slot-id ...)
|
||||
maybe-type-ctor
|
||||
maybe-alias ...)
|
||||
#:grammar
|
||||
[(maybe-type-ctor (code:line)
|
||||
(code:line #:type-constructor type-ctor-id))
|
||||
(maybe-alias (code:line)
|
||||
(code:line #:with alias alias-body))]]{
|
||||
Defines a container analagous to a prefab @racket[struct]. Includes accessor
|
||||
functions for each @racket[slot-id]. (But not, presently, a predicate function).
|
||||
|
||||
When a @racket[type-ctor-id] is provided, the type of such structures is
|
||||
@racket[(type-ctor-id type ...)], where each @racket[type] describes the value
|
||||
of the corresponding slot. When not provided, the type constructor is named by
|
||||
appending @racket["/t"] to @racket[ctor-id].
|
||||
|
||||
Each @racket[alias] and @racket[alias-body] creates an instance of
|
||||
@racket[define-type-alias].
|
||||
}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(define-constructor* (ctor-id : type-ctor-id slot-id ...)
|
||||
maybe-alias ...)]{
|
||||
An abbreviated form of @racket[define-constructor].
|
||||
}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(assertion-struct ctor-id : type-ctor-id (slot-id ...))]{
|
||||
An abbreviated form of @racket[define-constructor].
|
||||
}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(message-struct ctor-id : type-ctor-id (slot-id ...))]{
|
||||
An abbreviated form of @racket[define-constructor].
|
||||
}
|
||||
|
||||
@section{Actor Forms}
|
||||
|
||||
@defform[(run-ground-dataspace type expr ...)]{
|
||||
Starts a ground, i.e. main, dataspace of the program, with the given
|
||||
communication @racket[type] and initial actors spawned by @racket[expr ...].
|
||||
}
|
||||
|
||||
@defform[(spawn maybe-type s)
|
||||
#:grammar
|
||||
[(maybe-type (code:line)
|
||||
(code:line type))]]{
|
||||
Spawns an actor with behavior given by @racket[s]. The @racket[type] gives the
|
||||
communication type of the enclosing dataspace. When absent, @racket[type] is
|
||||
supplied by the nearest lexically enclosing @racket[spawn] or @racket[dataspace]
|
||||
form, if any exist.
|
||||
}
|
||||
|
||||
@defform[(dataspace type expr ...)]{
|
||||
Spawns a dataspace with communication type @racket[type] as a child of the
|
||||
dataspace enclosing the executing actor. The script @racket[expr ...] spawns the
|
||||
initial actors of the new dataspace.
|
||||
}
|
||||
|
||||
@defform[(start-facet id maybe-spec expr ...+)
|
||||
#:grammar
|
||||
[(maybe-spec (code:line)
|
||||
(code:line #:implements type)
|
||||
(code:line #:includes-behavior type))]]{
|
||||
Start a facet with name @racket[id] and endpoints installed through the
|
||||
evaluation of @racket[expr ...].
|
||||
}
|
||||
|
||||
@defform[(stop id expr ...)]{
|
||||
Terminate the facet @racket[id] with continuation script @racket[expr ...]. Any
|
||||
facets started by the continuation script survive the termination of facet
|
||||
@racket[id].
|
||||
}
|
||||
|
||||
@defform[#:literals (start stop message asserted retracted _ $)
|
||||
(on event-description body ...+)
|
||||
#:grammar
|
||||
[(event-description (code:line start)
|
||||
(code:line stop)
|
||||
(code:line (message pattern))
|
||||
(code:line (asserted pattern))
|
||||
(code:line (retracted pattern)))
|
||||
(pattern (code:line _)
|
||||
(code:line ($ id type))
|
||||
(code:line ($ id))
|
||||
(code:line $id)
|
||||
(code:line $id:type)
|
||||
(code:line (ctor pattern ...))
|
||||
(code:line expr))]]{
|
||||
Creates an event handler endpoint that responds to the event specified by
|
||||
@racket[event-description]. Executes the @racket[body ...] for each matching
|
||||
event, with any pattern variables bound to their matched value.
|
||||
|
||||
Patterns have the following meanings:
|
||||
@itemlist[
|
||||
@item{@racket[_] matches anything.}
|
||||
|
||||
@item{@racket[($ id type)] matches any value and binds it to @racket[id] with
|
||||
assumed type @racket[type].}
|
||||
|
||||
@item{@racket[($ id)] is like @racket[($ id type)], but attempts to use the
|
||||
current communication type to fill in the @racket[type] of potential matches.
|
||||
May raise an error if no suitable communication type is in scope.}
|
||||
|
||||
@item{@racket[(? pred pattern)] matches values where @racket[(pred val)] is not
|
||||
@racket[#f] and that match @racket[pattern].}
|
||||
|
||||
@item{@racket[$id:type] is shorthand for @racket[($ id type)].}
|
||||
|
||||
@item{@racket[$id] is shorthand for @racket[($ id)].}
|
||||
|
||||
@item{@racket[(ctor pat ...)] matches values built by applying the constructor
|
||||
@racket[ctor] to values matching @racket[pat ...]. @racket[ctor] is usually
|
||||
a @racket[struct] name.}
|
||||
|
||||
@item{@racket[expr] patterns match values that are @racket[equal?] to
|
||||
@racket[expr].}
|
||||
]
|
||||
}
|
||||
|
||||
@defform[(on-start expr ...+)]{
|
||||
Shorthand for @racket[(on start expr ...)].
|
||||
}
|
||||
|
||||
@defform[(on-stop expr ...+)]{
|
||||
Shorthand for @racket[(on stop expr ...)].
|
||||
}
|
||||
|
||||
@defform[(assert expr)]{
|
||||
Creates an assertion endpoint with the value of @racket[expr].
|
||||
}
|
||||
|
||||
@defform[(know expr)]{
|
||||
Creates an internal assertion endpoint with the value of @racket[expr].
|
||||
}
|
||||
|
||||
@defform[(send! expr)]{
|
||||
Broadcast a dataspace message with the value of @racket[expr].
|
||||
}
|
||||
|
||||
@defform[(realize! expr)]{
|
||||
Broadcast an actor-internal message with the value of @racket[expr].
|
||||
}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(field [id maybe-type expr] ...)
|
||||
#:grammar
|
||||
[(maybe-type (code:line)
|
||||
(code:line type)
|
||||
(code:line : type))]]{
|
||||
Defines fields of type @racket[type] with names @racket[id] and initial values
|
||||
@racket[expr]. If @racket[type] is not provided, the type of the initial
|
||||
expression is used as the type of the field.
|
||||
}
|
||||
|
||||
@defform[(ref id)]{
|
||||
Reference the @racket[field] named @racket[id].
|
||||
}
|
||||
|
||||
@defform[(set! id expr)]{
|
||||
Update the value the @racket[field] named @racket[id].
|
||||
}
|
||||
|
||||
@defform[(begin/dataflow expr ...+)]{
|
||||
Evaluate and perform the script @racket[expr ...], and then again each time a
|
||||
field referenced by the script updates.
|
||||
}
|
||||
|
||||
@defform[(during pattern expr ...+)]{
|
||||
Engage in behavior for the duration of a matching assertion. The syntax of
|
||||
@racket[pattern] is the same as described by @racket[on].
|
||||
}
|
||||
|
||||
@defform[(during/spawn pattern expr ...+)]{
|
||||
Like @racket[during], but spawns an actor for the behavior @racket[expr ...].
|
||||
}
|
||||
|
||||
@defform[(define/query-value name absent-expr pattern expr
|
||||
maybe-on-add
|
||||
maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Equivalent to the untyped @racket[untyped:define/query-value].
|
||||
}
|
||||
|
||||
@defform[(define/query-set name pattern expr
|
||||
maybe-on-add
|
||||
maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Equivalent to the untyped @racket[untyped:define/query-set].
|
||||
}
|
||||
|
||||
@defform[(define/query-hash name pattern key-expr value-expr
|
||||
maybe-on-add
|
||||
maybe-on-remove)
|
||||
#:grammar
|
||||
[(maybe-on-add (code:line)
|
||||
(code:line #:on-add on-add-expr))
|
||||
(maybe-on-remove (code:line)
|
||||
(code:line #:on-remove on-remove-expr))]]{
|
||||
Equivalent to the untyped @racket[untyped:define/query-hash].
|
||||
}
|
||||
|
||||
@defform[(define/dataflow name maybe-type expr)
|
||||
#:grammar
|
||||
[(maybe-type (code:line)
|
||||
(code:line type))]]{
|
||||
Define a @racket[field] named @racket[name], whose value is reevaluated to the
|
||||
result of @racket[expr] each time any referenced field changes. When
|
||||
@racket[type] is not supplied, the field has the type of the given
|
||||
@racket[expr].
|
||||
}
|
||||
|
||||
@section{Expressions}
|
||||
|
||||
@defform*[#:literals (:)
|
||||
[(ann expr : type)
|
||||
(ann expr type)]]{
|
||||
Ensure that @racket[expr] has the given @racket[type].
|
||||
}
|
||||
|
||||
@defform[(if test-expr then-expr else-expr)]{
|
||||
The same as Racket's @racket[racket:if].
|
||||
}
|
||||
|
||||
@deftogether[(@defform[(cond [test-expr body-expr ...+] ...+)]
|
||||
@defthing[else Bool #:value #t])]{
|
||||
Like Racket's @racket[racket:cond].
|
||||
}
|
||||
|
||||
@defform[(when test-expr expr)]{
|
||||
Like Racket's @racket[racket:when], but results in @racket[#f] when
|
||||
@racket[test-expr] is @racket[#f].
|
||||
}
|
||||
|
||||
@defform[(unless test-expr expr)]{
|
||||
Like Racket's @racket[racket:unless], but results in @racket[#f] when
|
||||
@racket[test-expr] is @racket[#f].
|
||||
}
|
||||
|
||||
@defform[(let ([id expr] ...) body ...+)]{
|
||||
The same as Racket's @racket[racket:let].
|
||||
}
|
||||
|
||||
@defform[(let* ([id expr] ...) body ...+)]{
|
||||
The same as Racket's @racket[racket:let*].
|
||||
}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(lambda ([x opt-: type] ...) expr ...+)
|
||||
#:grammar
|
||||
[(opt-: (code:line)
|
||||
(code:line :))]]{
|
||||
Constructsa an anonymous function.
|
||||
}
|
||||
|
||||
@defidform[λ]{Synonym for @racket[lambda].}
|
||||
|
||||
@defform[(Λ (X ...) expr)]{
|
||||
Parametric abstraction over type variables @racket[X ...].
|
||||
}
|
||||
|
||||
@defform[(inst expr type ...)]{
|
||||
Instantiates the type variables @racket[X ...] with @racket[type ...], where
|
||||
@racket[expr] has type @racket[(∀ (X ...) t)].
|
||||
}
|
||||
|
||||
@defform*[#:literals (: → -> ∀)
|
||||
[(define id : type expr)
|
||||
(define id expr)
|
||||
(define (id [arg-id opt-: arg-type] ... opt-res-ty) expr ...+)
|
||||
(define (∀ (X ...) (id [arg-id opt-: arg-type] ... opt-res-ty)) expr ...+)]
|
||||
#:grammar
|
||||
[(opt-: (code:line) (code:line :))
|
||||
(opt-res-ty (code:line)
|
||||
(code:line arr res-type))
|
||||
(arr (code:line →) (code:line ->))]]{
|
||||
Define a constant or a (potentially polymorphic) function. Note that the
|
||||
function name @racket[id] is @emph{not} bound in the body.
|
||||
}
|
||||
|
||||
@defform[(define-tuple (id ...) expr)]{
|
||||
Define @racket[id ...] to each of the slots of the tuple produced by
|
||||
@racket[expr].
|
||||
}
|
||||
|
||||
@defform[(match-define pattern expr)]{
|
||||
Define the binders of @racket[pattern] to the matching values of @racket[expr].
|
||||
}
|
||||
|
||||
@defform[(begin expr ...+)]{
|
||||
Sequencing form whose value and type is that of the final @racket[expr].
|
||||
}
|
||||
|
||||
@defform[(block expr ...+)]{
|
||||
Like @racket[begin], but also introduces a definition context for its body.
|
||||
}
|
||||
|
||||
@defform[(match expr [pattern body-expr ...+] ...+)]{
|
||||
Like Racket's @racket[racket:match] but with the pattern syntax described by
|
||||
@racket[on].
|
||||
}
|
||||
|
||||
@defform[(tuple expr ...)]{
|
||||
Constructs a tuple of arbitrary arity.
|
||||
}
|
||||
|
||||
@defform[(select i expr)]{
|
||||
Extract the @racket[i]th element of a @racket[tuple].
|
||||
}
|
||||
|
||||
@defthing[unit Unit #:value (tuple)]
|
||||
|
||||
@defform[(error format-expr arg-expr ...)]{
|
||||
Raises an exception using @racket[format-expr] as a format string together with
|
||||
@racket[arg-expr ...].
|
||||
}
|
||||
|
||||
@deftogether[(
|
||||
@defthing[+ (→fn Int Int Int)]
|
||||
@defthing[- (→fn Int Int Int)]
|
||||
@defthing[* (→fn Int Int Int)]
|
||||
@defthing[< (→fn Int Int Bool)]
|
||||
@defthing[> (→fn Int Int Bool)]
|
||||
@defthing[<= (→fn Int Int Bool)]
|
||||
@defthing[>= (→fn Int Int Bool)]
|
||||
@defthing[= (→fn Int Int Bool)]
|
||||
@defthing[even? (→fn Int Bool)]
|
||||
@defthing[odd? (→fn Int Bool)]
|
||||
@defthing[add1 (→fn Int Int)]
|
||||
@defthing[sub1 (→fn Int Int)]
|
||||
@defthing[max (→fn Int Int Int)]
|
||||
@defthing[min (→fn Int Int Int)]
|
||||
@defthing[zero? (→fn Int Bool)]
|
||||
@defthing[positive? (→fn Int Bool)]
|
||||
@defthing[negative? (→fn Int Bool)]
|
||||
@defthing[current-inexact-milleseconds? (→fn Int)]
|
||||
@defthing[string=? (→fn String String Bool)]
|
||||
@defthing[bytes->string/utf-8 (→fn ByteString String)]
|
||||
@defthing[string->bytes/utf-8 (→fn String ByteString)]
|
||||
@defthing[gensym (→fn Symbol Symbol)]
|
||||
@defthing[symbol->string (→fn Symbol String)]
|
||||
@defthing[string->symbol (→fn String Symbol)]
|
||||
@defthing[not (→fn Bool Bool)]
|
||||
@defform[(/ e1 e2)]
|
||||
@defform[(and e ...)]
|
||||
@defform[(or e ...)]
|
||||
@defform[(equal? e1 e2)]
|
||||
@defform[(displayln e)]
|
||||
@defform[(printf fmt-expr val-expr ...)]
|
||||
@defform[(~a e ...)]
|
||||
)]{
|
||||
Primitive operations imported from Racket.
|
||||
}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(for/fold ([acc-id maybe-:ty acc-expr] ...+)
|
||||
(for-clause ...)
|
||||
body-expr ...+)
|
||||
#:grammar
|
||||
[(maybe-:ty (code:line)
|
||||
(code:line : acc-type))
|
||||
(for-clause (code:line [id seq-expr])
|
||||
(code:line [id : type seq-expr])
|
||||
(code:line [(k-id v-id) hash-expr])
|
||||
(code:line #:when test-expr)
|
||||
(code:line #:unless test-expr)
|
||||
(code:line #:break test-expr))]]{
|
||||
Similar to Racket's @racket[racket:for/fold].
|
||||
|
||||
When more than one @racket[acc-id] is used, the body of the loop must evaluate
|
||||
to a @racket[tuple] with one value for each accumulator, with the final tuple
|
||||
also being the result of the entire expression.
|
||||
|
||||
Each @racket[seq-expr] should be of type @racket[Sequence], though expressions
|
||||
of type @racket[List] and @racket[Set] are automatically converted.
|
||||
}
|
||||
|
||||
@deftogether[(
|
||||
@defform[(for/list (for-clause ...) body ...+)]
|
||||
@defform[(for/set (for-clause ...) body ...+)]
|
||||
@defform[(for/sum (for-clause ...) body ...+)]
|
||||
@defform[(for (for-clause ...) body ...+)]
|
||||
@defform[(for/first (for-clause ...) body ...+)]
|
||||
)]{
|
||||
Like their Racket counterparts. See @racket[for/fold] for the description of
|
||||
@racket[for-clause].
|
||||
|
||||
Unlike @racket[racket:for/first], @racket[for/first] returns a @racket[Maybe]
|
||||
value to indicate success/failure.
|
||||
}
|
||||
|
||||
@section{Require & Provide}
|
||||
|
||||
@defform[(struct-out ctor-id)]{
|
||||
}
|
||||
|
||||
@subsection{Requiring From Outside Typed Syndicate}
|
||||
|
||||
@defform[#:literals (:)
|
||||
(require/typed lib clause ...)
|
||||
#:grammar
|
||||
[(clause (code:line [id : type])
|
||||
(code:line opaque))
|
||||
(opaque (code:line [#:opaque type-name])
|
||||
(code:line [#:opaque type-name #:arity op arity-nat]))
|
||||
(opaque (code:line =) (code:line >) (code:line >=))]]{
|
||||
Import and assign types to bindings from outside Typed Syndicate.
|
||||
|
||||
Note that @emph{unlike} Typed Racket, Typed Syndicate does not attach contracts
|
||||
to imported bindings.
|
||||
|
||||
An @racket[#:opaque] declaration defines a type @racket[type-name] (or, in the
|
||||
@racket[#:arity] case, a type constructor) that may be used to describe imports
|
||||
but otherwise has no other operations.
|
||||
}
|
||||
|
||||
@defform[(require-struct ctor-id #:as ty-ctor-id #:from lib maybe-omit-accs)
|
||||
#:grammar
|
||||
[(maybe-omit-accs (code:line)
|
||||
(code:line #:omit-accs))]]{
|
||||
Import a Racket @racket[struct] named @racket[ctor-id] and create a type
|
||||
constructor @racket[ty-ctor-id] for its instances.
|
||||
|
||||
Unless @racket[#:omit-accs] is specified, defines the accessor functions for the
|
||||
struct.
|
||||
}
|
||||
|
||||
|
||||
@section{Builtin Data Structures}
|
||||
|
||||
@deftogether[(@defstruct[observe ([claim any?]) #:omit-constructor]
|
||||
@defform[(Observe type)])]{
|
||||
Constructs an assertion of interest.
|
||||
}
|
||||
|
||||
@deftogether[(@defstruct[inbound ([assertion any?]) #:omit-constructor]
|
||||
@defform[(Inbound type)])]{
|
||||
Constructor for an assertion inbound from an outer dataspace.
|
||||
}
|
||||
|
||||
@deftogether[(@defstruct[outbound ([assertion any?]) #:omit-constructor]
|
||||
@defform[(Outbound type)])]{
|
||||
Constructor for an assertion outbound to an outer dataspace.
|
||||
}
|
||||
|
||||
@deftogether[(@defstruct[message ([body any?]) #:omit-constructor]
|
||||
@defform[(Message type)])]{
|
||||
Constructor for a broadcast message.
|
||||
}
|
||||
|
||||
@subsection{Lists}
|
||||
|
||||
@defform[(List type)]{
|
||||
The type for @racket[cons] lists whose elements are of type @racket[type].
|
||||
}
|
||||
|
||||
@deftogether[(
|
||||
@defthing[empty (List ⊥)]
|
||||
@defthing[empty? (∀ (X) (→fn (List X) Bool))]
|
||||
@defthing[cons (∀ (X) (→fn X (List X) (List X)))]
|
||||
@defthing[cons? (∀ (X) (→fn X (List X) Bool))]
|
||||
@defthing[first (∀ (X) (→fn (List X) X))]
|
||||
@defthing[second (∀ (X) (→fn (List X) X))]
|
||||
@defthing[rest (∀ (X) (→fn (List X) (List X)))]
|
||||
@defthing[member? (∀ (X) (→fn X (List X) Bool))]
|
||||
@defthing[reverse (∀ (X) (→fn (List X) (List X)))]
|
||||
@defthing[partition (∀ (X) (→fn (List X) (→fn X Bool) (List X)))]
|
||||
@defthing[map (∀ (X Y) (→fn (→fn X Y) (List X) (List Y)))]
|
||||
@defthing[argmax (∀ (X) (→fn (→fn X Int) (List X) X))]
|
||||
@defthing[argmin (∀ (X) (→fn (→fn X Int) (List X) X))]
|
||||
@defthing[remove (∀ (X) (→fn X (List X) (List X)))]
|
||||
@defthing[length (∀ (X) (→fn (List X) Int))]
|
||||
@defform[(list e ...)]
|
||||
)]{
|
||||
Like their Racket counterparts.
|
||||
}
|
||||
|
||||
@subsection{Sets}
|
||||
|
||||
@defform[(Set type)]{
|
||||
The type for sets whose elements are of type @racket[type].
|
||||
}
|
||||
|
||||
@deftogether[(
|
||||
@defform[(set e ...)]
|
||||
@defform[(set-union st ...+)]
|
||||
@defform[(set-intersect st ...+)]
|
||||
@defform[(set-subtract st ...+)]
|
||||
@defthing[set-first (∀ (X) (→fn (Set X) X))]
|
||||
@defthing[set-empty? (∀ (X) (→fn (Set X) Bool))]
|
||||
@defthing[set-count (∀ (X) (→fn (Set X) Int))]
|
||||
@defthing[set-add (∀ (X) (→fn (Set X) X (Set X)))]
|
||||
@defthing[set-remove (∀ (X) (→fn (Set X) X (Set X)))]
|
||||
@defthing[set-member? (∀ (X) (→fn (Set X) X Bool))]
|
||||
@defthing[list->set (∀ (X) (→fn (List X) (Set X)))]
|
||||
@defthing[set->list (∀ (X) (→fn (Set X) (List X)))]
|
||||
)]{
|
||||
Like their Racket counterparts.
|
||||
}
|
||||
|
||||
@subsection{Hashes}
|
||||
|
||||
@defform[(Hash key-type value-type)]{
|
||||
The type for key/value hash tables.
|
||||
}
|
||||
|
||||
@deftogether[(
|
||||
@defform[(hash key val ... ...)]
|
||||
@defthing[hash-set (∀ (K V) (→fn (Hash K V) K V (Hash K V)))]
|
||||
@defthing[hash-ref (∀ (K V) (→fn (Hash K V) K V))]
|
||||
@defthing[hash-ref/failure (∀ (K V) (→fn (Hash K V) K V V))]
|
||||
@defthing[hash-empty? (∀ (K V) (→fn (Hash K V) Bool))]
|
||||
@defthing[hash-has-key? (∀ (K V) (→fn (Hash K V) K Bool))]
|
||||
@defthing[hash-count (∀ (K V) (→fn (Hash K V) Int))]
|
||||
@defthing[hash-update (∀ (K V) (→fn (Hash K V) K (→fn V V) (Hash K V)))]
|
||||
@defthing[hash-update/failure (∀ (K V) (→fn (Hash K V) K (→fn V V) V (Hash K V)))]
|
||||
@defthing[hash-remove (∀ (K V) (→fn (Hash K V) K (Hash K V)))]
|
||||
@defthing[hash-map (∀ (K V R) (→fn (Hash K V) (→fn K V R) (List R)))]
|
||||
@defthing[hash-keys (∀ (K V) (→fn (Hash K V) (List K)))]
|
||||
@defthing[hash-values (∀ (K V) (→fn (Hash K V) (List V)))]
|
||||
@defthing[hash-union (∀ (K1 V1 K2 V2) (→fn (Hash K1 V1) (Hash K2 V2) (Hash (U K1 K2) (U V1 V2))))]
|
||||
@defthing[hash-union/combine (∀ (K V) (→fn (Hash K V) (Hash K V) (→fn V V V) (Hash K V)))]
|
||||
@defthing[hash-keys-subset? (∀ (K1 V1 K2 V2) (→fn (Hash K1 V1) (Hash K2 V2) Bool))]
|
||||
)]{
|
||||
Like their Racket counterparts. The /failure and /combine suffixes are in place
|
||||
of keyword arguments, which Typed Syndicate does not presently support.
|
||||
}
|
||||
|
||||
@subsection{Sequences}
|
||||
|
||||
@defform[(Sequence type)]{
|
||||
The type for a sequence of @racket[type] values.
|
||||
}
|
||||
|
||||
@deftogether[(
|
||||
@defthing[empty-sequence (Sequence ⊥)]
|
||||
@defthing[sequence->list (∀ (X) (→fn (Sequence X) (List X)))]
|
||||
@defthing[sequence-length (∀ (X) (→fn (Sequence X) Int))]
|
||||
@defthing[sequence-ref (∀ (X) (→fn (Sequence X) Int Int))]
|
||||
@defthing[sequence-tail (∀ (X) (→fn (Sequence X) Int (Sequence X)))]
|
||||
@defthing[sequence-append (∀ (X) (→fn (Sequence X) (Sequence X) (Sequence X)))]
|
||||
@defthing[sequence-map (∀ (A B) (→fn (→fn A B) (Sequence A) (Sequence B)))]
|
||||
@defthing[sequence-andmap (∀ (X) (→fn (→fn X Bool) (Sequence X) Bool))]
|
||||
@defthing[sequence-ormap (∀ (X) (→fn (→fn X Bool) (Sequence X) Bool))]
|
||||
@defthing[sequence-fold (∀ (A B) (→fn (→fn A B A) (Sequence B) A))]
|
||||
@defthing[sequence-count (∀ (X) (→fn (→fn X Bool) (Sequence X) Int))]
|
||||
@defthing[sequence-filter (∀ (X) (→fn (→fn X Bool) (Sequence X) (Sequence X)))]
|
||||
@defthing[sequence-add-between (∀ (X) (→fn (Sequence X) X (Sequence X)))]
|
||||
@defthing[in-list (∀ (X) (→fn (List X) (Sequence X)))]
|
||||
@defthing[in-hash-keys (∀ (K V) (→fn (Hash K V) (Sequence K)))]
|
||||
@defthing[in-hash-values (∀ (K V) (→fn (Hash K V) (Sequence V)))]
|
||||
@defthing[in-range (→fn Int (Sequence Int))]
|
||||
@defthing[in-set (∀ (X) (→fn (Set X) (Sequence X)))]
|
||||
)]{
|
||||
Like their Racket counterparts.
|
||||
}
|
||||
|
||||
@subsection{Maybe}
|
||||
|
||||
@deftogether[(
|
||||
@defidform[None]
|
||||
@defthing[none None]
|
||||
@defstruct[some ([v any?]) #:omit-constructor]
|
||||
@defform[(Some type)]
|
||||
@defform[(Maybe type)]
|
||||
)]{
|
||||
@racket[(Maybe type)] is an alias for @racket[(U None (Some type))].
|
||||
}
|
||||
|
||||
@subsection{Either}
|
||||
|
||||
@deftogether[(
|
||||
@defstruct[left ([v any?]) #:omit-constructor]
|
||||
@defform[(Left type)]
|
||||
@defstruct[right ([v any?]) #:omit-constructor]
|
||||
@defform[(Right type)]
|
||||
@defform[(Either left-type right-type)]
|
||||
)]{
|
||||
@racket[(Either left-type right-type)] is an alias for @racket[(U (Left
|
||||
left-type) (Right right-type))].
|
||||
}
|
||||
|
||||
@defthing[partition/either (∀ (X Y Z) (→fn (List X) (→fn X (Either Y Z)) (Tuple (List Y) (List Z))))]{
|
||||
Partition a list based on a function that returns an @racket[Either] value.
|
||||
}
|
||||
|
||||
@section{Behavioral Checking}
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,410 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide bind
|
||||
discard
|
||||
ann
|
||||
if
|
||||
when
|
||||
unless
|
||||
let
|
||||
let*
|
||||
cond
|
||||
else
|
||||
match
|
||||
tuple
|
||||
unit
|
||||
select
|
||||
error
|
||||
define-tuple
|
||||
match-define
|
||||
mk-tuple
|
||||
tuple-select
|
||||
(for-syntax (all-defined-out)))
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require (only-in "prim.rkt" Bool String #%datum))
|
||||
(require (postfix-in - racket/match))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Patterns
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax (bind x:id τ:type) ≫
|
||||
----------------------------------------
|
||||
[⊢ (#%app- error- 'bind "escaped") (⇒ : (Bind τ))])
|
||||
|
||||
(define-typed-syntax discard
|
||||
[_ ≫
|
||||
--------------------
|
||||
[⊢ (#%app- error- 'discard "escaped") (⇒ : Discard)]])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Core-ish forms
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
;; copied from stlc
|
||||
(define-typed-syntax (ann e (~optional (~datum :)) τ:type) ≫
|
||||
[⊢ e ≫ e- (⇐ : τ.norm)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
------------------------------------------------
|
||||
[⊢ e- (⇒ : τ.norm) ])
|
||||
|
||||
;; copied from ext-stlc
|
||||
(define-typed-syntax if
|
||||
[(_ e_tst e1 e2) ⇐ τ-expected ≫
|
||||
[⊢ e_tst ≫ e_tst- ⇒ _] ; Any non-false value is truthy.
|
||||
#:fail-unless (pure? #'e_tst-) "expression must be pure"
|
||||
[⊢ e1 ≫ e1- (⇐ : τ-expected)
|
||||
(⇒ ν-ep (~effs eps1 ...)) (⇒ ν-f (~effs fs1 ...)) (⇒ ν-s (~effs ss1 ...))]
|
||||
[⊢ e2 ≫ e2- (⇐ : τ-expected)
|
||||
(⇒ ν-ep (~effs eps2 ...)) (⇒ ν-f (~effs fs2 ...)) (⇒ ν-s (~effs ss2 ...))]
|
||||
--------
|
||||
[⊢ (if- e_tst- e1- e2-)
|
||||
(⇒ : τ-expected)
|
||||
(⇒ ν-ep (eps1 ... eps2 ...))
|
||||
(⇒ ν-f #,(make-Branch #'((fs1 ...) (fs2 ...))))
|
||||
(⇒ ν-s (ss1 ... ss2 ...))]]
|
||||
[(_ e_tst e1 e2) ≫
|
||||
[⊢ e_tst ≫ e_tst- ⇒ _] ; Any non-false value is truthy.
|
||||
#:fail-unless (pure? #'e_tst-) "expression must be pure"
|
||||
[⊢ e1 ≫ e1- (⇒ : τ1)
|
||||
(⇒ ν-ep (~effs eps1 ...)) (⇒ ν-f (~effs fs1 ...)) (⇒ ν-s (~effs ss1 ...))]
|
||||
[⊢ e2 ≫ e2- (⇒ : τ2)
|
||||
(⇒ ν-ep (~effs eps2 ...)) (⇒ ν-f (~effs fs2 ...)) (⇒ ν-s (~effs ss2 ...))]
|
||||
#:with τ (mk-U- #'(τ1 τ2))
|
||||
--------
|
||||
[⊢ (if- e_tst- e1- e2-) (⇒ : τ)
|
||||
(⇒ ν-ep (eps1 ... eps2 ...))
|
||||
(⇒ ν-f #,(make-Branch #'((fs1 ...) (fs2 ...))))
|
||||
(⇒ ν-s (ss1 ... ss2 ...))]])
|
||||
|
||||
(define-typed-syntax (when e s ...+) ≫
|
||||
------------------------------------
|
||||
[≻ (if e (let () s ...) #f)])
|
||||
|
||||
(define-typed-syntax (unless e s ...+) ≫
|
||||
------------------------------------
|
||||
[≻ (if e #f (let () s ...))])
|
||||
|
||||
|
||||
;; copied from ext-stlc
|
||||
(define-typed-syntax let
|
||||
[(_ ([x e] ...) e_body ...) ⇐ τ_expected ≫
|
||||
[⊢ e ≫ e- ⇒ : τ_x] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "expressions must be pure"
|
||||
[[x ≫ x- : τ_x] ... ⊢ (block e_body ...) ≫ e_body- (⇐ : τ_expected)
|
||||
(⇒ ν-ep (~effs eps ...))
|
||||
(⇒ ν-f (~effs fs ...))
|
||||
(⇒ ν-s (~effs ss ...))]
|
||||
----------------------------------------------------------
|
||||
[⊢ (let- ([x- e-] ...) e_body-) (⇒ : τ_expected)
|
||||
(⇒ ν-ep (eps ...))
|
||||
(⇒ ν-f (fs ...))
|
||||
(⇒ ν-s (ss ...))]]
|
||||
[(_ ([x e] ...) e_body ...) ≫
|
||||
[⊢ e ≫ e- ⇒ : τ_x] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "expressions must be pure"
|
||||
[[x ≫ x- : τ_x] ... ⊢ (block e_body ...) ≫ e_body- (⇒ : τ_body)
|
||||
(⇒ ν-ep (~effs eps ...))
|
||||
(⇒ ν-f (~effs fs ...))
|
||||
(⇒ ν-s (~effs ss ...))]
|
||||
----------------------------------------------------------
|
||||
[⊢ (let- ([x- e-] ...) e_body-) (⇒ : τ_body)
|
||||
(⇒ ν-ep (eps ...))
|
||||
(⇒ ν-f (fs ...))
|
||||
(⇒ ν-s (ss ...))]])
|
||||
|
||||
;; copied from ext-stlc
|
||||
(define-typed-syntax let*
|
||||
[(_ () e_body ...) ≫
|
||||
--------
|
||||
[≻ (block e_body ...)]]
|
||||
[(_ ([x e] [x_rst e_rst] ...) e_body ...) ≫
|
||||
--------
|
||||
[≻ (let ([x e]) (let* ([x_rst e_rst] ...) e_body ...))]])
|
||||
|
||||
(define-typed-syntax (cond [pred:expr s ...+] ...+) ≫
|
||||
[⊢ pred ≫ pred- (⇐ : Bool)] ...
|
||||
#:fail-unless (stx-andmap pure? #'(pred- ...)) "predicates must be pure"
|
||||
[⊢ (block s ...) ≫ s- (⇒ : τ-s)
|
||||
(⇒ ν-ep (~effs eps ...))
|
||||
(⇒ ν-f (~effs fs ...))
|
||||
(⇒ ν-s (~effs ss ...))] ...
|
||||
------------------------------------------------
|
||||
[⊢ (cond- [pred- s-] ...) (⇒ : (U τ-s ...))
|
||||
(⇒ ν-ep (eps ... ...))
|
||||
(⇒ ν-f #,(make-Branch #'((fs ...) ...)))
|
||||
(⇒ ν-s (ss ... ...))])
|
||||
|
||||
(define else #t)
|
||||
|
||||
(define-typed-syntax (match e [p s ...+] ...+) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ-e)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
#:with (p/e ...) (for/list ([pat (in-syntax #'(p ...))])
|
||||
(elaborate-pattern/with-type pat #'τ-e))
|
||||
#:with (([x τ:type] ...) ...) (stx-map pat-bindings #'(p/e ...))
|
||||
[[x ≫ x- : τ.norm] ... ⊢ (block s ...) ≫ s- (⇒ : τ-s)
|
||||
(⇒ ν-ep (~effs eps ...))
|
||||
(⇒ ν-f (~effs fs ...))
|
||||
(⇒ ν-s (~effs ss ...))] ...
|
||||
;; REALLY not sure how to handle p/p-/p.match-pattern,
|
||||
;; particularly w.r.t. typed terms that appear in p.match-pattern
|
||||
[⊢ p/e ≫ p-- ⇒ τ-p] ...
|
||||
#:fail-unless (project-safe? #'τ-e (mk-U*- #'(τ-p ...))) "possibly unsafe pattern match"
|
||||
#:fail-unless (stx-andmap pure? #'(p-- ...)) "patterns must be pure"
|
||||
#:with (p- ...) (stx-map (lambda (p x-s xs) (substs x-s xs (compile-match-pattern p)))
|
||||
#'(p/e ...)
|
||||
#'((x- ...) ...)
|
||||
#'((x ...) ...))
|
||||
--------------------------------------------------------------
|
||||
[⊢ (match- e- [p- s-] ...
|
||||
[_ (#%app- error- "incomplete pattern match")])
|
||||
(⇒ : (U τ-s ...))
|
||||
(⇒ ν-ep #,(make-Branch #'((eps ...) ...)))
|
||||
(⇒ ν-f #,(make-Branch #'((fs ...) ...)))
|
||||
(⇒ ν-s #,(make-Branch #'((ss ...) ...)))])
|
||||
|
||||
|
||||
;; (Listof Value) -> Value
|
||||
(define- (mk-tuple es)
|
||||
(#%app- cons- 'tuple es))
|
||||
|
||||
(define-typed-syntax (tuple e:expr ...) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "expressions not allowed to have effects"
|
||||
-----------------------
|
||||
[⊢ (#%app- mk-tuple (#%app- list- e- ...)) (⇒ : (Tuple τ ...))])
|
||||
|
||||
(define unit : Unit (tuple))
|
||||
|
||||
(define-typed-syntax (select n:nat e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : (~Tuple τ ...))]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
#:do [(define i (syntax->datum #'n))]
|
||||
#:fail-unless (< i (stx-length #'(τ ...))) "index out of range"
|
||||
#:with τr (list-ref (stx->list #'(τ ...)) i)
|
||||
--------------------------------------------------------------
|
||||
[⊢ (#%app- tuple-select n e-) (⇒ : τr)])
|
||||
|
||||
(define- (tuple-select n t)
|
||||
(#%app- list-ref- t (#%app- add1- n)))
|
||||
|
||||
(define-typed-syntax (error msg args ...) ≫
|
||||
[⊢ msg ≫ msg- (⇐ : String)]
|
||||
[⊢ args ≫ args- (⇒ : τ)] ...
|
||||
#:fail-unless (all-pure? #'(msg- args- ...)) "expressions must be pure"
|
||||
----------------------------------------
|
||||
[⊢ (#%app- error- msg- args- ...) (⇒ : ⊥)])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Helpers
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
;; pat -> ([Id Type] ...)
|
||||
(define-for-syntax (pat-bindings stx)
|
||||
(syntax-parse stx
|
||||
#:datum-literals (bind tuple)
|
||||
[(bind x:id τ:type)
|
||||
#'([x τ])]
|
||||
[(tuple p ...)
|
||||
#:with (([x:id τ:type] ...) ...) (stx-map pat-bindings #'(p ...))
|
||||
#'([x τ] ... ...)]
|
||||
[(~constructor-exp cons p ...)
|
||||
#:with (([x:id τ:type] ...) ...) (stx-map pat-bindings #'(p ...))
|
||||
#'([x τ] ... ...)]
|
||||
[_
|
||||
#'()]))
|
||||
|
||||
(begin-for-syntax
|
||||
;; Any -> Bool
|
||||
(define (dollar-variable? x)
|
||||
(and (identifier? x)
|
||||
(char=? (string-ref (symbol->string (syntax-e x)) 0) #\$)))
|
||||
|
||||
;; dollar-id -> Identifier
|
||||
(define (un-dollar x)
|
||||
(datum->syntax x (string->symbol (substring (symbol->string (syntax-e x)) 1))))
|
||||
|
||||
(define-syntax-class dollar-id
|
||||
#:attributes (id)
|
||||
(pattern x:id
|
||||
#:when (dollar-variable? #'x)
|
||||
#:attr id (un-dollar #'x)))
|
||||
|
||||
;; match things of the for "$X...:Y..." where X and Y are things without
|
||||
;; spaces (i.e. likely but not definitely legal identifiers)
|
||||
(define DOLLAR-ANN-RX #px"^\\$(\\S*):(\\S*)$")
|
||||
|
||||
;; Any -> RegexpMatchResults
|
||||
(define (dollar-ann-variable? x)
|
||||
(and (identifier? x)
|
||||
(regexp-match DOLLAR-ANN-RX (symbol->string (syntax-e x)))))
|
||||
|
||||
(define-syntax-class dollar-ann-id
|
||||
#:attributes (id ty)
|
||||
(pattern x:id
|
||||
#:do [(define match? (dollar-ann-variable? #'x))]
|
||||
#:when match?
|
||||
#:attr id (datum->syntax #'x (string->symbol (second match?)))
|
||||
#:attr ty (datum->syntax #'x (string->symbol (third match?)))))
|
||||
|
||||
;; expand uses of $ short-hand
|
||||
;; doesn't handle uses of $id or ($) w/o a type
|
||||
(define (elaborate-pattern pat)
|
||||
(syntax-parse pat
|
||||
#:datum-literals (tuple _ $)
|
||||
[_
|
||||
#'discard]
|
||||
[x:dollar-ann-id
|
||||
(syntax/loc pat (bind x.id x.ty))]
|
||||
[($ x:id ty)
|
||||
(syntax/loc pat (bind x ty))]
|
||||
[(tuple p ...)
|
||||
(quasisyntax/loc pat
|
||||
(tuple #,@(stx-map elaborate-pattern #'(p ...))))]
|
||||
[(~constructor-exp ctor p ...)
|
||||
(quasisyntax/loc pat
|
||||
(ctor #,@(stx-map elaborate-pattern #'(p ...))))]
|
||||
[e:expr
|
||||
#'e]))
|
||||
|
||||
(define (elaborate-pattern/with-type pat ty)
|
||||
(syntax-parse pat
|
||||
#:datum-literals (tuple $)
|
||||
[(~datum _)
|
||||
#'discard]
|
||||
[x:dollar-ann-id
|
||||
(syntax/loc pat (bind x.id x.ty))]
|
||||
[x:dollar-id
|
||||
(when (bot? ty)
|
||||
(raise-syntax-error #f "unable to instantiate pattern with matching part of type" pat))
|
||||
(quasisyntax/loc pat (bind x.id #,ty))]
|
||||
[($ x:id ty)
|
||||
(syntax/loc pat (bind x ty))]
|
||||
[($ x:id)
|
||||
(when (bot? ty)
|
||||
(raise-syntax-error #f "unable to instantiate pattern with matching part of type" pat))
|
||||
(quasisyntax/loc pat (bind x #,ty))]
|
||||
[(tuple p ...)
|
||||
(define (matching? t)
|
||||
(syntax-parse t
|
||||
[(~Tuple tt ...)
|
||||
#:when (stx-length=? #'(p ...) #'(tt ...))
|
||||
#t]
|
||||
[_ #f]))
|
||||
(define (proj t i)
|
||||
(syntax-parse t
|
||||
[(~Tuple tt ...)
|
||||
(if (= i -1)
|
||||
t
|
||||
(stx-list-ref #'(tt ...) i))]
|
||||
[(~U* (~or (~and tt (~fail #:unless (or (U*? #'tt) (matching? #'tt))))
|
||||
_) ...)
|
||||
(mk-U- (stx-map (lambda (x) (proj x i)) #'(tt ...)))]
|
||||
[_
|
||||
(mk-U*- '())]))
|
||||
(define selected (proj ty -1))
|
||||
(define sub-pats
|
||||
(for/list ([pat (in-syntax #'(p ...))]
|
||||
[i (in-naturals)])
|
||||
(elaborate-pattern/with-type pat (proj selected i))))
|
||||
(quasisyntax/loc pat
|
||||
(tuple #,@sub-pats))]
|
||||
[(~constructor-exp ctor p ...)
|
||||
(define tag (ctor-type-tag #'ctor))
|
||||
(define (matching? t)
|
||||
(syntax-parse t
|
||||
[(~constructor-type tag2 tt ...)
|
||||
#:when (equal? tag (syntax-e #'tag2))
|
||||
#:when (stx-length=? #'(p ...) #'(tt ...))
|
||||
#t]
|
||||
[_ #f]))
|
||||
(define (proj t i)
|
||||
(syntax-parse t
|
||||
[(~constructor-type _ tt ...)
|
||||
#:when (matching? t)
|
||||
(if (= i -1)
|
||||
t
|
||||
(stx-list-ref #'(tt ...) i))]
|
||||
[(~U* (~or (~and tt (~fail #:unless (or (U*? #'tt) (matching? #'tt))))
|
||||
_) ...)
|
||||
(mk-U- (stx-map (lambda (x) (proj x i)) #'(tt ...)))]
|
||||
[_
|
||||
(mk-U*- '())]))
|
||||
(define selected (proj ty -1))
|
||||
(define sub-pats
|
||||
(for/list ([pat (in-syntax #'(p ...))]
|
||||
[i (in-naturals)])
|
||||
(elaborate-pattern/with-type pat (proj selected i))))
|
||||
(quasisyntax/loc pat
|
||||
(ctor #,@sub-pats))]
|
||||
[e:expr
|
||||
#'e])))
|
||||
|
||||
;; TODO - figure out why this needs different list identifiers
|
||||
(define-for-syntax (compile-pattern pat list-binding bind-id-transformer exp-transformer)
|
||||
(define (l-e stx) (local-expand stx 'expression '()))
|
||||
(let loop ([pat pat])
|
||||
(syntax-parse pat
|
||||
#:datum-literals (tuple discard bind)
|
||||
[(tuple p ...)
|
||||
#`(#,list-binding 'tuple #,@(stx-map loop #'(p ...)))]
|
||||
[(bind x:id τ:type)
|
||||
(bind-id-transformer #'x)]
|
||||
[discard
|
||||
#'_]
|
||||
[(~constructor-exp ctor p ...)
|
||||
(define/with-syntax uctor (untyped-ctor #'ctor))
|
||||
#`(uctor #,@(stx-map loop #'(p ...)))]
|
||||
[_
|
||||
;; local expanding "expression-y" syntax allows variable references to transform
|
||||
;; according to the mappings set up by turnstile.
|
||||
(exp-transformer (l-e pat))])))
|
||||
|
||||
(define-for-syntax (compile-match-pattern pat)
|
||||
(compile-pattern pat
|
||||
#'list
|
||||
identity
|
||||
(lambda (exp) #`(==- #,exp))))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Derived Forms
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax (define-tuple (x:id ...) e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ (~Tuple τ ...))]
|
||||
#:fail-unless (stx-length=? #'(x ...) #'(τ ...))
|
||||
"mismatched size"
|
||||
#:fail-unless (pure? #'e-) "expr must be pure"
|
||||
#:with (sel ...) (for/list ([y (in-syntax #'(x ...))]
|
||||
[t (in-syntax #'(τ ...))]
|
||||
[i (in-naturals)])
|
||||
(quasisyntax/loc this-syntax
|
||||
(select #,i it)))
|
||||
----------------------------------------
|
||||
[≻ (begin
|
||||
(define it e-)
|
||||
(define x : τ sel) ...)])
|
||||
|
||||
(define-typed-syntax (match-define pat:expr e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ-e)]
|
||||
#:with pat+ (elaborate-pattern/with-type #'pat #'τ-e)
|
||||
#:with ([x τ] ...) (pat-bindings #'pat+)
|
||||
----------------------------------------
|
||||
[≻ (define-tuple (x ...)
|
||||
(match e-
|
||||
[pat+
|
||||
(tuple x ...)]))])
|
||||
|
||||
;; extremely limited match-define for `define-constructor`-d things
|
||||
|
||||
#;(define-typed-syntax (match-define (~constructor-exp ctor x:id ...) e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ (~constructor-type tag1 τ ...))]
|
||||
#:fail-unless (stx-length=? #'(x ...) #'(τ ...))
|
||||
"mismatched size"
|
||||
[⊢ (ctor (bind x τ) ...) ≫ pat- (⇒ (~constructor-type tag2 _ ...))]
|
||||
#:fail-unless (equal? #'tag1 #'tag2)
|
||||
(~format "type mismatch: ~a, ~a" #'tag1 #'tag2)
|
||||
------------------------------------------------------------
|
||||
)
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,22 @@
|
|||
#lang typed/syndicate/roles
|
||||
|
||||
(provide activate!
|
||||
later-than
|
||||
LaterThanT
|
||||
LaterThan
|
||||
TimeStateDriver)
|
||||
|
||||
(require-struct later-than
|
||||
#:as LaterThanT
|
||||
#:from syndicate/drivers/timestate)
|
||||
|
||||
(define-type-alias LaterThan (LaterThanT Int))
|
||||
|
||||
(define-type-alias TimeStateDriver
|
||||
(U LaterThan
|
||||
(Observe (LaterThanT ★/t))))
|
||||
|
||||
;; TODO ignoring other driver underneath it
|
||||
|
||||
(require/typed (submod syndicate/drivers/timestate syndicate-main)
|
||||
[activate! : (proc → ⊥ #:spawns ((Actor TimeStateDriver)))])
|
|
@ -0,0 +1,35 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide Left
|
||||
Right
|
||||
Either
|
||||
left
|
||||
right
|
||||
partition/either)
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require "core-expressions.rkt")
|
||||
(require "for-loops.rkt")
|
||||
(require "list.rkt")
|
||||
|
||||
(define-constructor* (left : Left v))
|
||||
(define-constructor* (right : Right v))
|
||||
|
||||
(define-type-alias (Either A B)
|
||||
(U (Left A)
|
||||
(Right B)))
|
||||
|
||||
(define (∀ (X Y Z) (partition/either [xs : (List X)]
|
||||
[pred : (→fn X (Either Y Z))]
|
||||
-> (Tuple (List Y) (List Z))))
|
||||
(for/fold ([lefts (List Y) (list)]
|
||||
[rights (List Z) (list)])
|
||||
([x xs])
|
||||
(define y-or-z (pred x))
|
||||
(match y-or-z
|
||||
[(left (bind y Y))
|
||||
(tuple (cons y lefts)
|
||||
rights)]
|
||||
[(right (bind z Z))
|
||||
(tuple lefts
|
||||
(cons z rights))])))
|
|
@ -0,0 +1,257 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide for/fold
|
||||
for
|
||||
for/list
|
||||
for/set
|
||||
for/sum
|
||||
for/first)
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require "sequence.rkt")
|
||||
(require (only-in "list.rkt" List ~List))
|
||||
(require (only-in "set.rkt" Set ~Set))
|
||||
(require (only-in "hash.rkt" Hash ~Hash))
|
||||
(require (only-in "prim.rkt" Bool + #%datum))
|
||||
(require (only-in "core-expressions.rkt" let unit tuple-select mk-tuple))
|
||||
(require "maybe.rkt")
|
||||
|
||||
(require (postfix-in - (only-in racket/set
|
||||
for/set
|
||||
in-set)))
|
||||
|
||||
(begin-for-syntax
|
||||
(define-splicing-syntax-class iter-clause
|
||||
#:attributes (parend)
|
||||
#:datum-literals (:)
|
||||
(pattern [x:id seq:expr]
|
||||
#:attr parend #'[x seq])
|
||||
(pattern [x:id : τ:type seq:expr]
|
||||
#:attr parend #'[x : τ seq])
|
||||
(pattern [(k:id v:id) hash-seq:expr]
|
||||
#:attr parend #'[(k v) hash-seq])
|
||||
(pattern (~seq #:when pred:expr)
|
||||
#:attr parend #'(#:when pred))
|
||||
(pattern (~seq #:unless pred:expr)
|
||||
#:attr parend #'(#:unless pred))
|
||||
(pattern (~seq #:break pred:expr)
|
||||
#:attr parend #'(#:break pred))))
|
||||
|
||||
;; a Binding is a (SyntaxList Id Id Type), i.e. #'(x x- τ-x)
|
||||
(begin-for-syntax
|
||||
(struct loop-clause (exp bindings) #:transparent)
|
||||
(struct directive (kw exp) #:transparent))
|
||||
|
||||
|
||||
;; (SyntaxListOf LoopClause) -> (Syntax LoopClause- (Binding ...))
|
||||
(define-for-syntax (analyze-for-clauses clauses)
|
||||
(define-values (br binds)
|
||||
(for/fold ([body-rev '()]
|
||||
[bindings '()])
|
||||
([clause (in-syntax clauses)])
|
||||
(match (analyze-for-clause clause bindings)
|
||||
[(loop-clause exp bs)
|
||||
(values (cons exp body-rev)
|
||||
(append bindings bs))]
|
||||
[(directive kw exp)
|
||||
(values (list* exp kw body-rev)
|
||||
bindings)])))
|
||||
#`(#,(reverse br)
|
||||
#,binds))
|
||||
|
||||
;; iter-clause (Listof Binding) -> (U iter-clause directive)
|
||||
(define-for-syntax (analyze-for-clause clause ctx)
|
||||
(define/with-syntax ([y y- τ-y] ...) ctx)
|
||||
(syntax-parse clause
|
||||
#:datum-literals (:)
|
||||
[[x:id seq:expr]
|
||||
#:and (~typecheck
|
||||
[[y ≫ y-- : τ-y] ... ⊢ seq ≫ seq- (⇒ : τ-seq)])
|
||||
#:fail-unless (pure? #'seq-) "pure"
|
||||
#:with x- (generate-temporary #'x)
|
||||
#:do [(define-values (seq-- τ-elems) (make-sequence #'seq- #'τ-seq))]
|
||||
(loop-clause (substs #'(y- ...) #'(y-- ...)
|
||||
#`[x- #,seq--]
|
||||
free-identifier=?)
|
||||
(list #`(x x- #,τ-elems)))]
|
||||
[[x:id : τ:type seq:expr]
|
||||
#:with seq+ (add-expected-type #'seq #'τ.norm)
|
||||
#:do [(match-define (list seq- (list (list x- τ-elems)))
|
||||
(analyze-for-clause (syntax/loc clause [x seq+])))]
|
||||
#:fail-unless (<: τ-elems #'τ.norm) "unexpected type"
|
||||
(loop-clause #`[#,x- #,seq-]
|
||||
(list #`(x #,x- τ.norm)))]
|
||||
[[(k:id v:id) hash-seq:expr]
|
||||
#:and (~typecheck
|
||||
[[y ≫ y-- : τ-y] ... ⊢ hash-seq ≫ hash-seq- (⇒ : (~Hash K V))])
|
||||
#:fail-unless (pure? #'hash-seq-) "pure"
|
||||
#:with (k- v-) (generate-temporaries #'(k v))
|
||||
(loop-clause (substs #'(y- ...) #'(y-- ...)
|
||||
#`[(k- v-) (in-hash- hash-seq-)]
|
||||
free-identifier=?)
|
||||
(list #'(k k- K) #'(v v- V)))]
|
||||
[(dir:keyword pred)
|
||||
#:and (~typecheck
|
||||
[[y ≫ y-- : τ-y] ... ⊢ pred ≫ pred- (⇐ : Bool)])
|
||||
#:fail-unless (pure? #'pred-) "pure"
|
||||
(directive #'dir (substs #'(y- ...) #'(y-- ...)
|
||||
#'pred-
|
||||
free-identifier=?))]))
|
||||
|
||||
;; Expression Type -> (Values Expression Type)
|
||||
;; Determine what kind of sequence we're dealing with;
|
||||
;; if it's not already in Sequence form, wrap the expression in the appropriate in-* form
|
||||
;; also figure out what the type of elements are to associate with the loop variable
|
||||
;; hashes handled separately
|
||||
(define-for-syntax (make-sequence e τ)
|
||||
(syntax-parse τ
|
||||
[(~Sequence t)
|
||||
(values e #'t)]
|
||||
[(~List t)
|
||||
(values #`(in-list- #,e) #'t)]
|
||||
[(~Set t)
|
||||
(values #`(in-set- #,e) #'t)]
|
||||
[_
|
||||
(type-error #:src e
|
||||
#:msg "not an iterable type: ~a" τ)]))
|
||||
|
||||
(define-for-syntax (bind-renames renames body)
|
||||
(syntax-parse renames
|
||||
[([x:id x-:id] ...)
|
||||
#:with (x-- ...) (map syntax-local-identifier-as-binding (syntax->list #'(x- ...)))
|
||||
(quasisyntax/loc body
|
||||
(let- ()
|
||||
(define-syntax x (make-variable-like-transformer #'x--)) ...
|
||||
#,body))]))
|
||||
|
||||
(define-typed-syntax for/fold
|
||||
[(for/fold ([acc:id (~optional (~datum :)) τ-acc init] ...+)
|
||||
(clause:iter-clause
|
||||
...)
|
||||
e-body ...+) ≫
|
||||
[⊢ init ≫ init- (⇐ : τ-acc)] ...
|
||||
#:fail-unless (all-pure? #'(init- ...)) "expression must be pure"
|
||||
#:with (clauses- ([x x- τ] ...)) (analyze-for-clauses #'(clause.parend ...))
|
||||
#:do [(define num-accs (length (syntax->list #'(τ-acc ...))))]
|
||||
#:with body-ty (if (= 1 num-accs)
|
||||
(first (syntax->list #'(τ-acc ...)))
|
||||
(type-eval #'(Tuple (~@ τ-acc ...))))
|
||||
[[[x ≫ x-- : τ] ...]
|
||||
[[acc ≫ acc- : τ-acc] ...] ⊢ (block e-body ...) ≫ e-body-
|
||||
(⇐ : body-ty)
|
||||
(⇒ ν-ep (~effs τ-ep ...))
|
||||
(⇒ ν-s (~effs τ-s ...))
|
||||
(⇒ ν-f (~effs τ-f ...))]
|
||||
-------------------------------------------------------
|
||||
[⊢ (values->tuple #,num-accs
|
||||
(for/fold- ([acc- init-] ...)
|
||||
clauses-
|
||||
#,(bind-renames #'([x-- x-] ...) #`(tuple->values #,num-accs e-body-))))
|
||||
(⇒ : body-ty)
|
||||
(⇒ ν-ep (τ-ep ...))
|
||||
(⇒ ν-s (τ-s ...))
|
||||
(⇒ ν-f (τ-f ...))]]
|
||||
[(for/fold (accs ... [acc:id init] more-accs ...)
|
||||
clauses
|
||||
e-body ...+) ≫
|
||||
[⊢ init ≫ _ (⇒ : τ-acc)]
|
||||
---------------------------------------------------
|
||||
[≻ (for/fold (accs ... [acc τ-acc init] more-accs ...)
|
||||
clauses
|
||||
e-body ...)]])
|
||||
|
||||
(define-syntax-parser tuple->values
|
||||
[(_ n:nat e:expr)
|
||||
(define arity (syntax-e #'n))
|
||||
(cond
|
||||
[(= 1 arity)
|
||||
#'e]
|
||||
[else
|
||||
(define/with-syntax tmp (generate-temporary 'tup))
|
||||
(define projections
|
||||
(for/list ([i (in-range arity)])
|
||||
#`(#%app- tuple-select #,i tmp)))
|
||||
#`(let- ([tmp e])
|
||||
(#%app- values- #,@projections))])])
|
||||
|
||||
#;(tuple->values 1 (tuple 0))
|
||||
|
||||
(define-syntax-parser values->tuple
|
||||
[(_ n:nat e:expr)
|
||||
(define arity (syntax-e #'n))
|
||||
(cond
|
||||
[(= 1 arity)
|
||||
#'e]
|
||||
[else
|
||||
(define/with-syntax (tmp ...) (generate-temporaries (make-list arity 'values->tuple)))
|
||||
#`(let-values- ([(tmp ...) e])
|
||||
(#%app- mk-tuple (#%app- list- tmp ...)))])])
|
||||
|
||||
(define-typed-syntax (for/list (clause:iter-clause ...)
|
||||
e-body ...+) ≫
|
||||
#:with (clauses- ([x x- τ] ...)) (analyze-for-clauses #'(clause.parend ...))
|
||||
[[x ≫ x-- : τ] ... ⊢ (block e-body ...) ≫ e-body-
|
||||
(⇒ : τ-body)
|
||||
(⇒ ν-ep (~effs τ-ep ...))
|
||||
(⇒ ν-s (~effs τ-s ...))
|
||||
(⇒ ν-f (~effs τ-f ...))]
|
||||
----------------------------------------------------------------------
|
||||
[⊢ (for/list- clauses-
|
||||
#,(bind-renames #'([x-- x-] ...) #'e-body-))
|
||||
(⇒ : (List τ-body))
|
||||
(⇒ ν-ep (τ-ep ...))
|
||||
(⇒ ν-s (τ-s ...))
|
||||
(⇒ ν-f (τ-f ...))])
|
||||
|
||||
(define-typed-syntax (for/set (clause:iter-clause ...)
|
||||
e-body ...+) ≫
|
||||
#:with (clauses- ([x x- τ] ...)) (analyze-for-clauses #'(clause.parend ...))
|
||||
[[x ≫ x-- : τ] ... ⊢ (block e-body ...) ≫ e-body-
|
||||
(⇒ : τ-body)
|
||||
(⇒ ν-ep (~effs τ-ep ...))
|
||||
(⇒ ν-s (~effs τ-s ...))
|
||||
(⇒ ν-f (~effs τ-f ...))]
|
||||
----------------------------------------------------------------------
|
||||
[⊢ (for/set- clauses-
|
||||
#,(bind-renames #'([x-- x-] ...) #'e-body-))
|
||||
(⇒ : (Set τ-body))
|
||||
(⇒ ν-ep (τ-ep ...))
|
||||
(⇒ ν-s (τ-s ...))
|
||||
(⇒ ν-f (τ-f ...))])
|
||||
|
||||
(define-typed-syntax (for/sum (clause ...)
|
||||
e-body ...+) ≫
|
||||
----------------------------------------------------------------------
|
||||
[≻ (for/fold ([acc 0])
|
||||
(clause ...)
|
||||
(+ acc (let () e-body ...)))])
|
||||
|
||||
(define-typed-syntax (for (clause ...)
|
||||
e-body ...+) ≫
|
||||
----------------------------------------------------------------------
|
||||
[≻ (for/fold ([acc unit])
|
||||
(clause ...)
|
||||
e-body ...
|
||||
acc)])
|
||||
|
||||
(define-typed-syntax (for/first (clause:iter-clause ...)
|
||||
e-body ...+) ≫
|
||||
#:with (clauses- ([x x- τ] ...)) (analyze-for-clauses #'(clause.parend ...))
|
||||
[[x ≫ x-- : τ] ... ⊢ (block e-body ...) ≫ e-body-
|
||||
(⇒ : τ-body)
|
||||
(⇒ ν-ep (~effs τ-ep ...))
|
||||
(⇒ ν-s (~effs τ-s ...))
|
||||
(⇒ ν-f (~effs τ-f ...))]
|
||||
[[res ≫ _ : τ-body] ⊢ res ≫ res- (⇒ : _)]
|
||||
----------------------------------------------------------------------
|
||||
[⊢ (let- ()
|
||||
(define- res-
|
||||
(for/first- clauses-
|
||||
#,(bind-renames #'([x-- x-] ...) #'e-body-)))
|
||||
(if- res-
|
||||
(some res-)
|
||||
none))
|
||||
(⇒ : (Maybe τ-body))
|
||||
(⇒ ν-ep (τ-ep ...))
|
||||
(⇒ ν-s (τ-s ...))
|
||||
(⇒ ν-f (τ-f ...))])
|
|
@ -0,0 +1,71 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide Hash
|
||||
(for-syntax ~Hash)
|
||||
hash
|
||||
hash-set
|
||||
hash-ref
|
||||
(typed-out [[hash-ref/failure- : (∀ (K V) (→fn (Hash K V) K V V))]
|
||||
hash-ref/failure])
|
||||
hash-has-key?
|
||||
hash-update
|
||||
(typed-out [[hash-update/failure- : (∀ (K V) (→fn (Hash K V) K (→fn V V) V (Hash K V)))]
|
||||
hash-update/failure])
|
||||
hash-remove
|
||||
hash-map
|
||||
hash-keys
|
||||
hash-values
|
||||
hash-keys-subset?
|
||||
hash-count
|
||||
hash-empty?
|
||||
hash-union
|
||||
(typed-out [[hash-union/combine- : (∀ (K V) (→fn (Hash K V) (Hash K V) (→fn V V V) (Hash K V)))]
|
||||
hash-union/combine])
|
||||
)
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require (only-in "list.rkt" List))
|
||||
(require (only-in "prim.rkt" Int Bool))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Immutable Hash Tables
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-container-type Hash #:arity = 2)
|
||||
|
||||
(define-typed-syntax (hash (~seq key:expr val:expr) ...) ≫
|
||||
[⊢ key ≫ key- (⇒ : τ-k)] ...
|
||||
[⊢ val ≫ val- (⇒ : τ-val)] ...
|
||||
#:fail-unless (all-pure? #'(key- ... val- ...)) "gotta be pure"
|
||||
--------------------------------------------------
|
||||
[⊢ (#%app- hash- (~@ key val) ...) (⇒ : (Hash (U τ-k ...) (U τ-val ...)))])
|
||||
|
||||
(require/typed racket/base
|
||||
;; don't have a type for ConsPair
|
||||
#;[make-hash : (∀ (K V) (→fn (List (ConsPair K V)) (Hash K V)))]
|
||||
[hash-set : (∀ (K V) (→fn (Hash K V) K V (Hash K V)))]
|
||||
[hash-ref : (∀ (K V) (→fn (Hash K V) K V))]
|
||||
[hash-has-key? : (∀ (K V) (→fn (Hash K V) K Bool))]
|
||||
[hash-update : (∀ (K V) (→fn (Hash K V) K (→fn V V) (Hash K V)))]
|
||||
[hash-remove : (∀ (K V) (→fn (Hash K V) K (Hash K V)))]
|
||||
[hash-map : (∀ (K V R) (→fn (Hash K V) (→fn K V R) (List R)))]
|
||||
[hash-keys : (∀ (K V) (→fn (Hash K V) (List K)))]
|
||||
[hash-values : (∀ (K V) (→fn (Hash K V) (List V)))]
|
||||
;; TODO hash->list makes cons pairs
|
||||
#;[hash->list : (∀ (K V) (→fn (Hash K V) (List (ConsPair K V))))]
|
||||
[hash-keys-subset? : (∀ (K1 V1 K2 V2) (→fn (Hash K1 V1) (Hash K2 V2) Bool))]
|
||||
[hash-count : (∀ (K V) (→fn (Hash K V) Int))]
|
||||
[hash-empty? : (∀ (K V) (→fn (Hash K V) Bool))])
|
||||
|
||||
(require/typed racket/hash
|
||||
[hash-union : (∀ (K1 V1 K2 V2) (→fn (Hash K1 V1) (Hash K2 V2) (Hash (U K1 K2) (U V1 V2))))]
|
||||
)
|
||||
|
||||
(define- (hash-ref/failure- h k err)
|
||||
(#%app- hash-ref- h k err))
|
||||
|
||||
(define- (hash-update/failure- h k u err)
|
||||
(#%app- hash-update- h k u err))
|
||||
|
||||
(define- (hash-union/combine- h1 h2 combine)
|
||||
(#%app- hash-union- h1 h2 #:combine combine))
|
|
@ -1,2 +1,2 @@
|
|||
#lang s-exp syntax/module-reader
|
||||
typed/main
|
||||
typed/syndicate/roles
|
||||
|
|
|
@ -0,0 +1,39 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide List
|
||||
(for-syntax ~List)
|
||||
list
|
||||
(typed-out [[empty- : (List ⊥)] empty]
|
||||
[[empty?- : (∀ (X) (→fn (List X) Bool))] empty?]
|
||||
[[cons- : (∀ (X) (→fn X (List X) (List X)))] cons]
|
||||
[[cons?- : (∀ (X) (→fn X (List X) Bool))] cons?]
|
||||
[[first- : (∀ (X) (→fn (List X) X))] first]
|
||||
[[second- : (∀ (X) (→fn (List X) X))] second]
|
||||
[[rest- : (∀ (X) (→fn (List X) (List X)))] rest]
|
||||
[[member?- (∀ (X) (→fn X (List X) Bool))] member?]
|
||||
[[reverse- (∀ (X) (→fn (List X) (List X)))] reverse]
|
||||
[[partition- (∀ (X) (→fn (List X) (→fn X Bool) (List X)))] partition]
|
||||
[[map- (∀ (X Y) (→fn (→fn X Y) (List X) (List Y)))] map]
|
||||
[[argmax- : (∀ (X) (→fn (→fn X Int) (List X) X))] argmax]
|
||||
[[argmin- : (∀ (X) (→fn (→fn X Int) (List X) X))] argmin]
|
||||
[[remove- : (∀ (X) (→fn X (List X) (List X)))] remove]
|
||||
[[length- : (∀ (X) (→fn (List X) Int))] length]))
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require (only-in "prim.rkt" Bool Int))
|
||||
(require (postfix-in - racket/list))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Lists
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-container-type List #:arity = 1)
|
||||
|
||||
(define-typed-syntax (list e ...) ≫
|
||||
[⊢ e ≫ e- ⇒ τ] ...
|
||||
#:fail-unless (all-pure? #'(e- ...)) "expressions must be pure"
|
||||
-------------------
|
||||
[⊢ (#%app- list- e- ...) ⇒ (List (U τ ...))])
|
||||
|
||||
(define- (member?- v l)
|
||||
(and- (#%app- member- v l) #t))
|
|
@ -0,0 +1,69 @@
|
|||
#lang racket
|
||||
|
||||
(provide (all-defined-out))
|
||||
|
||||
;; an [LTL X] is one of
|
||||
;; - (always [LTL X])
|
||||
;; - (eventually [LTL X])
|
||||
;; - (weak-until [LTL X] [LTL X])
|
||||
;; - (strong-until [LTL X] [LTL X])
|
||||
;; - (ltl-implies [LTL X] [LTL X])
|
||||
;; - (ltl-and [Listof [LTL X]])
|
||||
;; - (ltl-or [Listof [LTL X]])
|
||||
;; - (ltl-not [LTL X])
|
||||
;; - (atomic X)
|
||||
;; - Bool
|
||||
;; where X represents the type of atomic propositions
|
||||
|
||||
(struct always [p] #:prefab)
|
||||
(struct eventually [p] #:prefab)
|
||||
(struct atomic [p] #:prefab)
|
||||
(struct weak-until [p q] #:prefab)
|
||||
(struct strong-until [p q] #:prefab)
|
||||
(struct ltl-implies [p q] #:prefab)
|
||||
(struct ltl-and [p q] #:prefab)
|
||||
(struct ltl-or [p q] #:prefab)
|
||||
(struct ltl-not [p] #:prefab)
|
||||
|
||||
;; [LTL X] {X -> Y} -> [LTL Y]
|
||||
(define (map-atomic ltl op)
|
||||
(let loop ([ltl ltl])
|
||||
(match ltl
|
||||
[(always p)
|
||||
(always (loop p))]
|
||||
[(eventually p)
|
||||
(eventually (loop p))]
|
||||
[(weak-until p q)
|
||||
(weak-until (loop p) (loop q))]
|
||||
[(strong-until p q)
|
||||
(strong-until (loop p) (loop q))]
|
||||
[(ltl-implies p q)
|
||||
(ltl-implies (loop p) (loop q))]
|
||||
[(ltl-and p q)
|
||||
(ltl-and (loop p) (loop q))]
|
||||
[(ltl-or p q)
|
||||
(ltl-or (loop p) (loop q))]
|
||||
[(ltl-not p)
|
||||
(ltl-not (loop p))]
|
||||
[(atomic x)
|
||||
(atomic (op x))]
|
||||
[#t
|
||||
#t]
|
||||
[#f
|
||||
#f])))
|
||||
|
||||
(define (&& . args)
|
||||
(fold-bin-op ltl-and args #t))
|
||||
|
||||
(define (|| . args)
|
||||
(fold-bin-op ltl-or args #f))
|
||||
|
||||
(define (fold-bin-op op args base)
|
||||
(let loop ([args args])
|
||||
(match args
|
||||
['()
|
||||
base]
|
||||
[(list x y)
|
||||
(op x y)]
|
||||
[(cons fst rst)
|
||||
(op fst (loop rst))])))
|
|
@ -0,0 +1,37 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide Maybe
|
||||
None
|
||||
None*
|
||||
Some
|
||||
some
|
||||
none)
|
||||
|
||||
(require "core-types.rkt")
|
||||
|
||||
|
||||
(define-constructor* (none* : None*))
|
||||
(define-constructor* (some : Some v))
|
||||
|
||||
(define-type-alias None (None*))
|
||||
|
||||
(define none : None
|
||||
(none*))
|
||||
|
||||
(define-type-alias (Maybe X)
|
||||
(U None
|
||||
(Some X)))
|
||||
|
||||
#;(define (∀ (X Y) (partition/maybe [xs : (List X)]
|
||||
[pred : (→fn X (Maybe Y))]
|
||||
-> (Tuple (List Y) (List X))))
|
||||
#f)
|
||||
|
||||
#;(require (only-in "core-expressions.rkt" match error discard)
|
||||
"prim.rkt")
|
||||
#;(define (∀ (X) (unwrap! [x : (Maybe X)] -> (Maybe X)))
|
||||
(match x
|
||||
[(some discard)
|
||||
(error "some")]
|
||||
[none
|
||||
(error "none")]))
|
|
@ -0,0 +1,116 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide (all-defined-out)
|
||||
(for-syntax (all-defined-out)))
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require (rename-in racket/math [exact-truncate exact-truncate-]))
|
||||
(require (postfix-in - (only-in racket/format ~a)))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Primitives
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-base-types Int Bool String ByteString Symbol)
|
||||
|
||||
;; hmmm
|
||||
(define-primop + (→ Int Int (Computation (Value Int) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop - (→ Int Int (Computation (Value Int) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop * (→ Int Int (Computation (Value Int) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop not (→ Bool (Computation (Value Bool) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop < (→ Int Int (Computation (Value Bool) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop > (→ Int Int (Computation (Value Bool) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop <= (→ Int Int (Computation (Value Bool) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop >= (→ Int Int (Computation (Value Bool) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop = (→ Int Int (Computation (Value Bool) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop even? (→fn Int Bool))
|
||||
(define-primop odd? (→fn Int Bool))
|
||||
(define-primop add1 (→fn Int Int))
|
||||
(define-primop sub1 (→fn Int Int))
|
||||
(define-primop max (→fn Int Int Int))
|
||||
(define-primop min (→fn Int Int Int))
|
||||
(define-primop zero? (→fn Int Bool))
|
||||
(define-primop positive? (→fn Int Bool))
|
||||
(define-primop negative? (→fn Int Bool))
|
||||
(define-primop current-inexact-milliseconds (→fn Int))
|
||||
(define-primop string=? (→fn String String Bool))
|
||||
|
||||
(define-primop bytes->string/utf-8 (→ ByteString (Computation (Value String) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop string->bytes/utf-8 (→ String (Computation (Value ByteString) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop gensym (→ Symbol (Computation (Value Symbol) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop symbol->string (→ Symbol (Computation (Value String) (Endpoints) (Roles) (Spawns))))
|
||||
(define-primop string->symbol (→ String (Computation (Value Symbol) (Endpoints) (Roles) (Spawns))))
|
||||
|
||||
(define-typed-syntax (/ e1 e2) ≫
|
||||
[⊢ e1 ≫ e1- (⇐ : Int)]
|
||||
[⊢ e2 ≫ e2- (⇐ : Int)]
|
||||
#:fail-unless (pure? #'e1-) "expression not allowed to have effects"
|
||||
#:fail-unless (pure? #'e2-) "expression not allowed to have effects"
|
||||
------------------------
|
||||
[⊢ (#%app- exact-truncate- (#%app- /- e1- e2-)) (⇒ : Int)])
|
||||
|
||||
;; I think defining `and` and `or` as primops doesn't work because they're syntax
|
||||
(define-typed-syntax (and e ...) ≫
|
||||
[⊢ e ≫ e- (⇐ : Bool)] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "expressions not allowed to have effects"
|
||||
------------------------
|
||||
[⊢ (and- e- ...) (⇒ : Bool)])
|
||||
|
||||
(define-typed-syntax (or e ...) ≫
|
||||
[⊢ e ≫ e- (⇐ : Bool)] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "expressions not allowed to have effects"
|
||||
------------------------
|
||||
[⊢ (or- e- ...) (⇒ : Bool)])
|
||||
|
||||
(define-typed-syntax (equal? e1:expr e2:expr) ≫
|
||||
[⊢ e1 ≫ e1- (⇒ : τ1)]
|
||||
[⊢ e2 ≫ e2- (⇒ : τ2)]
|
||||
#:fail-unless (flat-type? #'τ1)
|
||||
(format "equality only available on flat data; got ~a" (type->str #'τ1))
|
||||
#:fail-unless (flat-type? #'τ2)
|
||||
(format "equality only available on flat data; got ~a" (type->str #'τ2))
|
||||
#:with int (∩ #'τ1 #'τ2)
|
||||
#:fail-unless (not (bot? #'int))
|
||||
(format "empty overlap between types ~a and ~a" (type->str #'τ1) (type->str #'τ2))
|
||||
#:fail-unless (pure? #'e1-) "expression not allowed to have effects"
|
||||
#:fail-unless (pure? #'e2-) "expression not allowed to have effects"
|
||||
---------------------------------------------------------------------------
|
||||
[⊢ (#%app- equal?- e1- e2-) (⇒ : Bool)])
|
||||
|
||||
(define-typed-syntax (displayln e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
---------------
|
||||
[⊢ (#%app- displayln- e-) (⇒ : ★/t)])
|
||||
|
||||
(define-typed-syntax (printf e ...+) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "expression not allowed to have effects"
|
||||
---------------
|
||||
[⊢ (#%app- printf- e- ...) (⇒ : ★/t)])
|
||||
|
||||
(define-typed-syntax (~a e ...) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)] ...
|
||||
#:fail-unless (stx-andmap flat-type? #'(τ ...))
|
||||
"expressions must be string-able"
|
||||
--------------------------------------------------
|
||||
[⊢ (#%app- ~a- e- ...) (⇒ : String)])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Basic Values
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax #%datum
|
||||
[(_ . n:integer) ≫
|
||||
----------------
|
||||
[⊢ (#%datum- . n) (⇒ : Int)]]
|
||||
[(_ . b:boolean) ≫
|
||||
----------------
|
||||
[⊢ (#%datum- . b) (⇒ : Bool)]]
|
||||
[(_ . s:string) ≫
|
||||
----------------
|
||||
[⊢ (#%datum- . s) (⇒ : String)]])
|
||||
|
||||
(define-typed-syntax (typed-quote x:id) ≫
|
||||
-------------------------------
|
||||
[⊢ (quote- x) (⇒ : Symbol)])
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,3 @@
|
|||
#!/bin/sh
|
||||
|
||||
spin -p -t $1
|
|
@ -0,0 +1,912 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide #%module-begin
|
||||
#%app
|
||||
(rename-out [typed-quote quote])
|
||||
#%top-interaction
|
||||
module+ module*
|
||||
;; require & provides
|
||||
require only-in prefix-in except-in rename-in
|
||||
provide all-defined-out all-from-out rename-out except-out
|
||||
for-syntax for-template for-label for-meta struct-out
|
||||
;; Start dataspace programs
|
||||
run-ground-dataspace
|
||||
;; Types
|
||||
Tuple Bind Discard → ∀ AssertionSet
|
||||
Role Reacts Shares Asserted Retracted Message OnDataflow Stop OnStart OnStop
|
||||
Know Forget Realize
|
||||
Branch Effs
|
||||
FacetName Field ★/t
|
||||
Observe Inbound Outbound Actor U ⊥
|
||||
Computation Value Endpoints Roles Spawns Sends
|
||||
→fn proc
|
||||
;; Statements
|
||||
let let* if spawn dataspace start-facet set! begin block stop begin/dataflow #;unsafe-do
|
||||
when unless send! realize! define during/spawn
|
||||
;; Derived Forms
|
||||
during During
|
||||
define/query-value
|
||||
define/query-set
|
||||
define/query-hash
|
||||
define/dataflow
|
||||
on-start on-stop
|
||||
;; endpoints
|
||||
assert know on field
|
||||
;; expressions
|
||||
tuple select lambda λ ref (struct-out observe) (struct-out message) (struct-out inbound) (struct-out outbound)
|
||||
Λ inst call/inst
|
||||
;; making types
|
||||
define-type-alias
|
||||
assertion-struct
|
||||
message-struct
|
||||
define-constructor define-constructor*
|
||||
;; values
|
||||
#%datum
|
||||
;; patterns
|
||||
bind discard
|
||||
;; primitives
|
||||
(all-from-out "prim.rkt")
|
||||
;; expressions
|
||||
(except-out (all-from-out "core-expressions.rkt") mk-tuple tuple-select)
|
||||
;; lists
|
||||
(all-from-out "list.rkt")
|
||||
;; sets
|
||||
(all-from-out "set.rkt")
|
||||
;; sequences
|
||||
(all-from-out "sequence.rkt")
|
||||
;; hash tables
|
||||
(all-from-out "hash.rkt")
|
||||
;; for loops
|
||||
(all-from-out "for-loops.rkt")
|
||||
;; utility datatypes
|
||||
(all-from-out "maybe.rkt")
|
||||
(all-from-out "either.rkt")
|
||||
;; DEBUG and utilities
|
||||
print-type print-role role-strings
|
||||
;; Behavioral Roles
|
||||
export-roles export-type check-simulates check-has-simulating-subgraph lift+define-role
|
||||
verify-actors
|
||||
;; LTL Syntax
|
||||
True False Always Eventually Until WeakUntil Implies And Or Not A M
|
||||
;; Extensions
|
||||
match cond
|
||||
submod for-syntax for-meta only-in except-in
|
||||
require/typed
|
||||
require-struct
|
||||
)
|
||||
(require "core-types.rkt")
|
||||
(require "core-expressions.rkt")
|
||||
(require "list.rkt")
|
||||
(require "set.rkt")
|
||||
(require "prim.rkt")
|
||||
(require "sequence.rkt")
|
||||
(require "hash.rkt")
|
||||
(require "for-loops.rkt")
|
||||
(require "maybe.rkt")
|
||||
(require "either.rkt")
|
||||
|
||||
(require (prefix-in syndicate: syndicate/actor-lang))
|
||||
(require (submod syndicate/actor priorities))
|
||||
(require (prefix-in syndicate: (submod syndicate/actor for-module-begin)))
|
||||
|
||||
(require (for-meta 2 macrotypes/stx-utils racket/list syntax/stx syntax/parse racket/base))
|
||||
(require macrotypes/postfix-in)
|
||||
(require (for-syntax turnstile/mode))
|
||||
(require turnstile/typedefs)
|
||||
(require (postfix-in - racket/list))
|
||||
(require (postfix-in - racket/set))
|
||||
|
||||
(require (for-syntax (prefix-in proto: "proto.rkt")
|
||||
(prefix-in proto: "ltl.rkt")
|
||||
syntax/id-table)
|
||||
(prefix-in proto: "proto.rkt")
|
||||
(prefix-in proto: "compile-spin.rkt"))
|
||||
|
||||
(module+ test
|
||||
(require rackunit)
|
||||
(require rackunit/turnstile))
|
||||
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Creating Communication Types
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-simple-macro (assertion-struct name:id (~datum :) Name:id (slot:id ...))
|
||||
(define-constructor* (name : Name slot ...)))
|
||||
|
||||
(define-simple-macro (message-struct name:id (~datum :) Name:id (slot:id ...))
|
||||
(define-constructor* (name : Name slot ...)))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Compile-time State
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(begin-for-syntax
|
||||
(define current-communication-type (make-parameter #f))
|
||||
;; Type -> Mode
|
||||
(define (communication-type-mode ty)
|
||||
(make-param-mode current-communication-type ty))
|
||||
|
||||
(define (elaborate-pattern/with-com-ty pat)
|
||||
(define τ? (current-communication-type))
|
||||
(if τ?
|
||||
(elaborate-pattern/with-type pat τ?)
|
||||
(elaborate-pattern pat))))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Core forms
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax start-facet
|
||||
[(_ name:id #:implements ~! spec:type ep ...+) ≫
|
||||
[⊢ (start-facet name ep ...) ≫ e- (⇒ ν-f (~effs impl-ty))]
|
||||
#:fail-unless (simulating-types? #'impl-ty #'spec.norm)
|
||||
"facet does not implement specification"
|
||||
------------------------------------------------------------
|
||||
[≻ e-]]
|
||||
[(_ name:id #:includes-behavior ~! spec:type ep ...+) ≫
|
||||
[⊢ (start-facet name ep ...) ≫ e- (⇒ ν-f (~effs impl-ty))]
|
||||
#:fail-unless (type-has-simulating-subgraphs? #'impl-ty #'spec.norm)
|
||||
"no subset implements specified behavior"
|
||||
------------------------------------------------------------
|
||||
[≻ e-]]
|
||||
[(_ name:id ep ...+) ≫
|
||||
#:with name- (syntax-local-identifier-as-binding (syntax-local-introduce (generate-temporary #'name)))
|
||||
#:with name+ (syntax-local-identifier-as-binding #'name)
|
||||
#:with facet-name-ty (type-eval #'FacetName)
|
||||
#:do [(define ctx (syntax-local-make-definition-context))
|
||||
(define unique (gensym 'start-facet))
|
||||
(define name-- (add-orig (internal-definition-context-introduce ctx #'name- 'add)
|
||||
#'name))
|
||||
(int-def-ctx-bind-type-rename #'name+ #'name- #'facet-name-ty ctx)
|
||||
(define-values (ep-... τ... ep-effects facet-effects spawn-effects)
|
||||
(walk/bind #'(ep ...) ctx unique))
|
||||
(unless (and (stx-null? facet-effects) (stx-null? spawn-effects))
|
||||
(type-error #:src #'(ep ...) #:msg "only endpoint effects allowed"))]
|
||||
#:with ((~or (~and τ-a (~Shares _))
|
||||
(~and τ-k (~Know _))
|
||||
;; untyped syndicate might allow this - TODO
|
||||
#;(~and τ-m (~Sends _))
|
||||
(~and τ-r (~Reacts _ _ ...))
|
||||
~MakesField)
|
||||
...)
|
||||
ep-effects
|
||||
#:with τ (type-eval #`(Role (#,name--)
|
||||
τ-a ...
|
||||
τ-k ...
|
||||
;; τ-m ...
|
||||
τ-r ...))
|
||||
--------------------------------------------------------------
|
||||
[⊢ (syndicate:react (let- ([#,name-- (#%app- syndicate:current-facet-id)])
|
||||
#,@ep-...))
|
||||
(⇒ : ★/t)
|
||||
(⇒ ν-f (τ))]])
|
||||
|
||||
(define-typed-syntax (during/spawn pat bdy ...+) ≫
|
||||
#:with pat+ (elaborate-pattern/with-com-ty #'pat)
|
||||
[⊢ pat+ ≫ pat-- (⇒ : τp)]
|
||||
#:fail-unless (pure? #'pat--) "pattern not allowed to have effects"
|
||||
#:fail-unless (allowed-interest? (pattern-sub-type #'τp)) "overly broad interest, ?̱̱★ and ??★ not allowed"
|
||||
#:with ([x:id τ:type] ...) (pat-bindings #'pat+)
|
||||
[[x ≫ x- : τ] ... ⊢ (block bdy ...) ≫ bdy-
|
||||
(⇒ ν-ep (~effs τ-ep ...))
|
||||
(⇒ ν-f (~effs))
|
||||
(⇒ ν-s (~effs))]
|
||||
#:with pat- (substs #'(x- ...) #'(x ...) (compile-syndicate-pattern #'pat+))
|
||||
#:with τc:type (current-communication-type)
|
||||
#:with τ-facet (type-eval #'(Role (_) τ-ep ...))
|
||||
#:with τ-spawn (mk-ActorWithRole- #'(τc.norm τ-facet))
|
||||
#:with τ-endpoint (type-eval #'(Reacts (Asserted τp) τ-spawn))
|
||||
------------------------------
|
||||
[⊢ (syndicate:during/spawn pat- bdy-)
|
||||
(⇒ : ★/t)
|
||||
(⇒ ν-ep (τ-endpoint))])
|
||||
|
||||
(define-typed-syntax field
|
||||
[(_ [x:id (~optional (~datum :)) τ-f:type e:expr] ...) ≫
|
||||
#:cut
|
||||
#:fail-unless (stx-andmap flat-type? #'(τ-f ...)) "keep your uppity data outta my fields"
|
||||
[⊢ e ≫ e- (⇐ : τ-f)] ...
|
||||
#:fail-unless (stx-andmap pure? #'(e- ...)) "field initializers not allowed to have effects"
|
||||
#:with (x- ...) (generate-temporaries #'(x ...))
|
||||
#:with (τ ...) (stx-map type-eval #'((Field τ-f.norm) ...))
|
||||
#:with MF (type-eval #'MakesField)
|
||||
----------------------------------------------------------------------
|
||||
[⊢ (erased (field/intermediate [x x- τ e-] ...))
|
||||
(⇒ : ★/t)
|
||||
(⇒ ν-ep (MF))]]
|
||||
[(_ flds ... [x:id e:expr] more-flds ...) ≫
|
||||
#:cut
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
--------------------
|
||||
[≻ (field flds ... [x τ e-] more-flds ...)]])
|
||||
|
||||
(define-typed-syntax (assert e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
#:fail-unless (allowed-interest? #'τ) "overly broad interest, ?̱̱★ and ??★ not allowed"
|
||||
#:with τs (mk-Shares- #'(τ))
|
||||
-------------------------------------
|
||||
[⊢ (syndicate:assert e-) (⇒ : ★/t)
|
||||
(⇒ ν-ep (τs))])
|
||||
|
||||
(define-typed-syntax (know e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
#:with τs (mk-Know- #'(τ))
|
||||
-------------------------------------
|
||||
[⊢ (syndicate:know e-) (⇒ : ★/t)
|
||||
(⇒ ν-ep (τs))])
|
||||
|
||||
(define-typed-syntax (send! e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
#:with τm (mk-Sends- #'(τ))
|
||||
--------------------------------------
|
||||
[⊢ (#%app- syndicate:send! e-) (⇒ : ★/t)
|
||||
(⇒ ν-f (τm))])
|
||||
|
||||
(define-typed-syntax (realize! e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
#:with τm (mk-Realizes- #'(τ))
|
||||
--------------------------------------
|
||||
[⊢ (#%app- syndicate:realize! e-) (⇒ : ★/t)
|
||||
(⇒ ν-f (τm))])
|
||||
|
||||
(define-typed-syntax (stop facet-name:id cont ...) ≫
|
||||
[⊢ facet-name ≫ facet-name- (⇐ : FacetName)]
|
||||
[⊢ (block #f cont ...) ≫ cont-
|
||||
(⇒ ν-ep (~effs))
|
||||
(⇒ ν-s (~effs))
|
||||
(⇒ ν-f (~effs τ-f ...))]
|
||||
#:with τ #'(Stop facet-name- τ-f ...)
|
||||
---------------------------------------------------------------------------------
|
||||
[⊢ (syndicate:stop-facet facet-name- cont-) (⇒ : ★/t)
|
||||
(⇒ ν-f (τ))])
|
||||
|
||||
(begin-for-syntax
|
||||
(define-syntax-class event-cons
|
||||
#:attributes (syndicate-kw ty-cons)
|
||||
#:datum-literals (asserted retracted message know forget realize)
|
||||
(pattern (~or (~and asserted
|
||||
(~bind [syndicate-kw #'syndicate:asserted]
|
||||
[ty-cons #'Asserted]))
|
||||
(~and retracted
|
||||
(~bind [syndicate-kw #'syndicate:retracted]
|
||||
[ty-cons #'Retracted]))
|
||||
(~and message
|
||||
(~bind [syndicate-kw #'syndicate:message]
|
||||
[ty-cons #'Message]))
|
||||
(~and know
|
||||
(~bind [syndicate-kw #'syndicate:know]
|
||||
[ty-cons #'Know]))
|
||||
(~and forget
|
||||
(~bind [syndicate-kw #'syndicate:forget]
|
||||
[ty-cons #'Forget]))
|
||||
(~and realize
|
||||
(~bind [syndicate-kw #'syndicate:realize]
|
||||
[ty-cons #'Realize])))))
|
||||
(define-syntax-class priority-level
|
||||
#:literals (*query-priority-high*
|
||||
*query-priority*
|
||||
*query-handler-priority*
|
||||
*normal-priority*
|
||||
*gc-priority*
|
||||
*idle-priority*)
|
||||
(pattern (~and level
|
||||
(~or *query-priority-high*
|
||||
*query-priority*
|
||||
*query-handler-priority*
|
||||
*normal-priority*
|
||||
*gc-priority*
|
||||
*idle-priority*))))
|
||||
(define-splicing-syntax-class priority
|
||||
#:attributes (level)
|
||||
(pattern (~seq #:priority l:priority-level)
|
||||
#:attr level #'l.level)
|
||||
(pattern (~seq)
|
||||
#:attr level #'*normal-priority*))
|
||||
)
|
||||
|
||||
(define-typed-syntax on
|
||||
#:datum-literals (start stop)
|
||||
[(on start s ...) ≫
|
||||
[⊢ (block s ...) ≫ s- (⇒ ν-ep (~effs))
|
||||
(⇒ ν-f (~effs τ-f ...))
|
||||
(⇒ ν-s (~effs τ-s ...))]
|
||||
#:with τ-r (type-eval #'(Reacts OnStart τ-f ... τ-s ...))
|
||||
-----------------------------------
|
||||
[⊢ (syndicate:on-start s-) (⇒ : ★/t)
|
||||
(⇒ ν-ep (τ-r))]]
|
||||
[(on stop s ...) ≫
|
||||
[⊢ (block s ...) ≫ s- (⇒ ν-ep (~effs))
|
||||
(⇒ ν-f (~effs τ-f ...))
|
||||
(⇒ ν-s (~effs τ-s ...))]
|
||||
#:with τ-r (type-eval #'(Reacts OnStop τ-f ... τ-s ...))
|
||||
-----------------------------------
|
||||
[⊢ (syndicate:on-stop s-) (⇒ : ★/t)
|
||||
(⇒ ν-ep (τ-r))]]
|
||||
[(on (evt:event-cons p)
|
||||
priority:priority
|
||||
s ...) ≫
|
||||
#:do [(define msg? (free-identifier=? #'syndicate:message (attribute evt.syndicate-kw)))
|
||||
(define elab
|
||||
(elaborate-pattern/with-com-ty (if msg? #'(message p) #'p)))]
|
||||
#:with p/e (if msg? (stx-cadr elab) elab)
|
||||
[⊢ p/e ≫ p-- (⇒ : τp)]
|
||||
#:fail-unless (pure? #'p--) "pattern not allowed to have effects"
|
||||
#:fail-unless (allowed-interest? (pattern-sub-type #'τp)) "overly broad interest, ?̱̱★ and ??★ not allowed"
|
||||
#:with ([x:id τ:type] ...) (pat-bindings #'p/e)
|
||||
[[x ≫ x- : τ] ... ⊢ (block s ...) ≫ s-
|
||||
(⇒ ν-ep (~effs))
|
||||
(⇒ ν-f (~effs τ-f ...))
|
||||
(⇒ ν-s (~effs τ-s ...))]
|
||||
#:with p- (substs #'(x- ...) #'(x ...) (compile-syndicate-pattern #'p/e))
|
||||
#:with τ-r (type-eval #'(Reacts (evt.ty-cons τp) τ-f ... τ-s ...))
|
||||
-----------------------------------
|
||||
[⊢ (syndicate:on (evt.syndicate-kw p-)
|
||||
#:priority priority.level
|
||||
s-)
|
||||
(⇒ : ★/t)
|
||||
(⇒ ν-ep (τ-r))]])
|
||||
|
||||
(define-typed-syntax (begin/dataflow s ...+) ≫
|
||||
[⊢ (block s ...) ≫ s-
|
||||
(⇒ : _)
|
||||
(⇒ ν-ep (~effs))
|
||||
(⇒ ν-f (~effs τ-f ...))
|
||||
(⇒ ν-s (~effs τ-s ...))]
|
||||
#:with τ-r (type-eval #'(Reacts OnDataflow τ-f ... τ-s ...))
|
||||
--------------------------------------------------
|
||||
[⊢ (syndicate:begin/dataflow s-)
|
||||
(⇒ : ★/t)
|
||||
(⇒ ν-ep (τ-r))])
|
||||
|
||||
(define-for-syntax (compile-syndicate-pattern pat)
|
||||
(compile-pattern pat
|
||||
#'list-
|
||||
(lambda (id) #`($ #,id))
|
||||
identity))
|
||||
|
||||
(define-typed-syntax spawn
|
||||
;; TODO - do the lack of #:cut-s cause bad error messages here?
|
||||
[(spawn τ-c:type s) ≫
|
||||
#:fail-unless (flat-type? #'τ-c.norm) "Communication type must be first-order"
|
||||
;; TODO: check that each τ-f is a Role
|
||||
#:mode (communication-type-mode #'τ-c.norm)
|
||||
[
|
||||
[⊢ (block s) ≫ s- (⇒ ν-ep (~effs)) (⇒ ν-s (~effs)) (⇒ ν-f (~effs τ-f ...))]
|
||||
]
|
||||
;; TODO: s shouldn't refer to facets or fields!
|
||||
#:fail-unless (and (stx-andmap Role? #'(τ-f ...))
|
||||
(= 1 (length (syntax->list #'(τ-f ...)))))
|
||||
"expected exactly one Role for body"
|
||||
#:with (τ-i τ-o τ-i/i τ-o/i τ-a) (analyze-roles #'(τ-f ...))
|
||||
#:fail-unless (<: #'τ-o #'τ-c.norm)
|
||||
(format "Output ~a not valid in dataspace ~a" (type->str #'τ-o) (type->str #'τ-c.norm))
|
||||
#:with τ-final #;(mk-Actor- #'(τ-c.norm)) (mk-ActorWithRole- #'(τ-c.norm τ-f ...))
|
||||
#:fail-unless (<: #'τ-a #'τ-final)
|
||||
"Spawned actors not valid in dataspace"
|
||||
#:fail-unless (project-safe? (∩ (strip-? #'τ-o) #'τ-c.norm)
|
||||
#'τ-i)
|
||||
(string-append "Not prepared to handle inputs:\n" (make-actor-error-message #'τ-i #'τ-o #'τ-c.norm))
|
||||
#:fail-unless (project-safe? (∩ (strip-? #'τ-o/i) #'τ-o/i) #'τ-i/i)
|
||||
(string-append "Not prepared to handle internal events:\n" (make-actor-error-message #'τ-i/i #'τ-o/i #'τ-o/i))
|
||||
--------------------------------------------------------------------------------------------
|
||||
[⊢ (syndicate:spawn (syndicate:on-start s-)) (⇒ : ★/t)
|
||||
(⇒ ν-s (τ-final))]]
|
||||
[(spawn s) ≫
|
||||
#:do [(define τc (current-communication-type))]
|
||||
#:when τc
|
||||
----------------------------------------
|
||||
[≻ (spawn #,τc s)]])
|
||||
|
||||
;; Type Type Type -> String
|
||||
(define-for-syntax (make-actor-error-message τ-i τ-o τ-c)
|
||||
(define mismatches (find-surprising-inputs τ-i τ-o τ-c))
|
||||
(string-join (map type->str mismatches) ",\n"))
|
||||
|
||||
;; Type Type Type -> (Listof Type)
|
||||
(define-for-syntax (find-surprising-inputs τ-i τ-o τ-c)
|
||||
(define incoming (∩ (strip-? τ-o) τ-c))
|
||||
;; Type -> (Listof Type)
|
||||
(let loop ([ty incoming])
|
||||
(syntax-parse ty
|
||||
[(~U* τ ...)
|
||||
(apply append (map loop (syntax->list #'(τ ...))))]
|
||||
[_
|
||||
(cond
|
||||
[(project-safe? ty τ-i)
|
||||
'()]
|
||||
[else
|
||||
(list ty)])])))
|
||||
|
||||
(define-typed-syntax (dataspace τ-c:type s ...) ≫
|
||||
#:fail-unless (flat-type? #'τ-c.norm) "Communication type must be first-order"
|
||||
#:mode (communication-type-mode #'τ-c.norm)
|
||||
[
|
||||
[⊢ s ≫ s- (⇒ ν-ep (~effs)) (⇒ ν-s (~effs τ-s ...)) (⇒ ν-f (~effs))] ...
|
||||
]
|
||||
#:with τ-actor (mk-Actor- #'(τ-c.norm))
|
||||
#:fail-unless (stx-andmap (lambda (t) (<: t #'τ-actor)) #'(τ-s ... ...))
|
||||
"Not all actors conform to communication type"
|
||||
#:with τ-ds-i (strip-inbound #'τ-c.norm)
|
||||
#:with τ-ds-o (strip-outbound #'τ-c.norm)
|
||||
#:with τ-relay (relay-interests #'τ-c.norm)
|
||||
-----------------------------------------------------------------------------------
|
||||
[⊢ (syndicate:dataspace s- ...) (⇒ : ★/t)
|
||||
(⇒ ν-s ((Actor (U τ-ds-i τ-ds-o τ-relay))))])
|
||||
|
||||
(define-typed-syntax (set! x:id e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression not allowed to have effects"
|
||||
[⊢ x ≫ x- (⇒ : (~Field τ-x:type))]
|
||||
#:fail-unless (<: #'τ #'τ-x) "Ill-typed field write"
|
||||
----------------------------------------------------
|
||||
[⊢ (#%app- x- e-) (⇒ : ★/t)])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Derived Forms
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax during
|
||||
#:literals (know)
|
||||
[(_ (~or (~and k (know p)) p) s ...) ≫
|
||||
#:with p+ (elaborate-pattern/with-com-ty #'p)
|
||||
#:with inst-p (instantiate-pattern #'p+)
|
||||
#:with start-e (if (attribute k) #'know #'asserted)
|
||||
#:with stop-e (if (attribute k) #'forget #'retracted)
|
||||
----------------------------------------
|
||||
[≻ (on (start-e p+)
|
||||
(start-facet during-inner
|
||||
(on (stop-e inst-p)
|
||||
(stop during-inner))
|
||||
s ...))]])
|
||||
|
||||
(define-simple-macro (During (~or (~and K ((~literal Know) τ:type)) τ:type)
|
||||
EP ...)
|
||||
#:with τ/inst (instantiate-pattern-type #'τ.norm)
|
||||
#:with start-e (if (attribute K) #'Know #'Asserted)
|
||||
#:with stop-e (if (attribute K) #'Forget #'Retracted)
|
||||
(Reacts (start-e τ)
|
||||
(Role (during-inner)
|
||||
(Reacts (stop-e τ/inst)
|
||||
(Stop during-inner))
|
||||
EP ...)))
|
||||
|
||||
;; TODO - reconcile this with `compile-pattern`
|
||||
(define-for-syntax (instantiate-pattern pat)
|
||||
(let loop ([pat pat])
|
||||
(syntax-parse pat
|
||||
#:datum-literals (tuple discard bind)
|
||||
[(tuple p ...)
|
||||
#`(tuple #,@(stx-map loop #'(p ...)))]
|
||||
[(bind x:id τ)
|
||||
#'x]
|
||||
;; not sure about this
|
||||
[discard
|
||||
#'discard]
|
||||
[(~constructor-exp ctor p ...)
|
||||
(define/with-syntax uctor (untyped-ctor #'ctor))
|
||||
#`(ctor #,@(stx-map loop #'(p ...)))]
|
||||
[_
|
||||
pat])))
|
||||
|
||||
;; Type -> Type
|
||||
;; replace occurrences of (Bind τ) with τ in a type, in much the same way
|
||||
;; instantiate-pattern does for patterns
|
||||
;; TODO - this is almost exactly the same as replace-bind-and-discard-with-★
|
||||
(define-for-syntax (instantiate-pattern-type ty)
|
||||
(syntax-parse ty
|
||||
[(~Bind τ)
|
||||
#'τ]
|
||||
[(~U* τ ...)
|
||||
(mk-U- (stx-map instantiate-pattern-type #'(τ ...)))]
|
||||
[(~Any/new τ-cons τ ...)
|
||||
#:when (reassemblable? #'τ-cons)
|
||||
(define subitems (for/list ([t (in-syntax #'(τ ...))])
|
||||
(instantiate-pattern-type t)))
|
||||
(reassemble-type #'τ-cons subitems)]
|
||||
[_ ty]))
|
||||
|
||||
(begin-for-syntax
|
||||
(define-splicing-syntax-class on-add
|
||||
#:attributes (expr)
|
||||
(pattern (~seq #:on-add add-e)
|
||||
#:attr expr #'add-e)
|
||||
(pattern (~seq)
|
||||
#:attr expr #'#f))
|
||||
|
||||
(define-splicing-syntax-class on-remove
|
||||
#:attributes (expr)
|
||||
(pattern (~seq #:on-remove remove-e)
|
||||
#:attr expr #'remove-e)
|
||||
(pattern (~seq)
|
||||
#:attr expr #'#f)))
|
||||
|
||||
|
||||
(define-typed-syntax (define/query-value x:id e0 p e
|
||||
(~optional add:on-add)
|
||||
(~optional remove:on-remove)) ≫
|
||||
[⊢ e0 ≫ e0- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e0-) "expression must be pure"
|
||||
----------------------------------------
|
||||
[≻ (begin (field [x τ e0-])
|
||||
(on (asserted p)
|
||||
#:priority *query-priority*
|
||||
(set! x e)
|
||||
add.expr)
|
||||
(on (retracted p)
|
||||
#:priority *query-priority-high*
|
||||
(set! x e0-)
|
||||
remove.expr))])
|
||||
|
||||
(define-typed-syntax (define/query-set x:id p e
|
||||
(~optional add:on-add)
|
||||
(~optional remove:on-remove)) ≫
|
||||
#:with p+ (elaborate-pattern/with-com-ty #'p)
|
||||
#:with ([y τ] ...) (pat-bindings #'p+)
|
||||
;; e will be re-expanded :/
|
||||
[[y ≫ y- : τ] ... ⊢ e ≫ e- ⇒ τ-e]
|
||||
----------------------------------------
|
||||
[≻ (begin (field [x (Set τ-e) (set)])
|
||||
(on (asserted p+)
|
||||
#:priority *query-priority*
|
||||
(set! x (set-add (ref x) e))
|
||||
add.expr)
|
||||
(on (retracted p+)
|
||||
#:priority *query-priority-high*
|
||||
(set! x (set-remove (ref x) e))
|
||||
remove.expr))])
|
||||
|
||||
(define-typed-syntax (define/query-hash x:id p e-key e-value
|
||||
(~optional add:on-add)
|
||||
(~optional remove:on-remove)) ≫
|
||||
#:with p+ (elaborate-pattern/with-com-ty #'p)
|
||||
#:with ([y τ] ...) (pat-bindings #'p+)
|
||||
;; e-key and e-value will be re-expanded :/
|
||||
;; but it's the most straightforward way to keep bindings in sync with
|
||||
;; pattern
|
||||
[[y ≫ y- : τ] ... ⊢ e-key ≫ e-key- ⇒ τ-key]
|
||||
[[y ≫ y-- : τ] ... ⊢ e-value ≫ e-value- ⇒ τ-value]
|
||||
;; TODO - this is gross, is there a better way to do this?
|
||||
;; #:with e-value-- (substs #'(y- ...) #'(y-- ...) #'e-value- free-identifier=?)
|
||||
;; I thought I could put e-key- and e-value-(-) in the output below, but that
|
||||
;; gets their references to pattern variables out of sync with `p`
|
||||
----------------------------------------
|
||||
[≻ (begin (field [x (Hash τ-key τ-value) (hash)])
|
||||
(on (asserted p+)
|
||||
#:priority *query-priority*
|
||||
(set! x (hash-set (ref x) e-key e-value))
|
||||
add.expr)
|
||||
(on (retracted p+)
|
||||
#:priority *query-priority-high*
|
||||
(set! x (hash-remove (ref x) e-key))
|
||||
remove.expr))])
|
||||
|
||||
(define-simple-macro (on-start e ...)
|
||||
(on start e ...))
|
||||
|
||||
(define-simple-macro (on-stop e ...)
|
||||
(on stop e ...))
|
||||
|
||||
(define-typed-syntax define/dataflow
|
||||
[(define/dataflow x:id τ:type e) ≫
|
||||
[⊢ e ≫ e- (⇐ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
;; because the begin/dataflow body is scheduled to run at some later point,
|
||||
;; the initial value is visible e.g. immediately after the define/dataflow
|
||||
;; #:with place-holder (attach #'(#%datum- #f) ': #'τ.norm)
|
||||
----------------------------------------
|
||||
[≻ (begin (field [x τ e-])
|
||||
(begin/dataflow (set! x e-)))]]
|
||||
[(define/dataflow x:id e) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
----------------------------------------
|
||||
[≻ (define/dataflow x τ e-)]])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Expressions
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax (ref x:id) ≫
|
||||
[⊢ x ≫ x- ⇒ (~Field τ)]
|
||||
------------------------
|
||||
[⊢ (#%app- x-) (⇒ : τ)])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Ground Dataspace
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
;; n.b. this is a blocking operation, so an actor that uses this internally
|
||||
;; won't necessarily terminate.
|
||||
(define-typed-syntax (run-ground-dataspace τ-c:type s ...) ≫
|
||||
;;#:fail-unless (flat-type? #'τ-c.norm) "Communication type must be first-order"
|
||||
#:mode (communication-type-mode #'τ-c.norm)
|
||||
[
|
||||
[⊢ s ≫ s- (⇒ : t1)] ...
|
||||
[⊢ (dataspace τ-c.norm s- ...) ≫ _ (⇒ : t2)]
|
||||
]
|
||||
#:with τ-out (strip-outbound #'τ-c.norm)
|
||||
-----------------------------------------------------------------------------------
|
||||
[⊢ (#%app- syndicate:run-ground (#%app- syndicate:capture-actor-actions (lambda- () (#%app- list- s- ...))))
|
||||
(⇒ : (AssertionSet τ-out))])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Utilities
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-typed-syntax (print-type e) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ) (⇒ ν-ep (~effs eps ...)) (⇒ ν-f (~effs fs ...)) (⇒ ν-s (~effs ss ...))]
|
||||
#:do [(pretty-display (type->strX #'τ))]
|
||||
----------------------------------
|
||||
[⊢ e- (⇒ : τ) (⇒ ν-ep (eps ...)) (⇒ ν-f (fs ...)) (⇒ ν-s (ss ...))])
|
||||
|
||||
(define-typed-syntax (print-role e) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ) (⇒ ν-ep (~effs eps ...)) (⇒ ν-f (~effs fs ...)) (⇒ ν-s (~effs ss ...))]
|
||||
#:do [(for ([r (in-syntax #'(fs ...))])
|
||||
(pretty-display (type->strX r)))]
|
||||
----------------------------------
|
||||
[⊢ e- (⇒ : τ) (⇒ ν-ep (eps ...)) (⇒ ν-f (fs ...)) (⇒ ν-s (ss ...))])
|
||||
|
||||
;; this is mainly for testing
|
||||
(define-typed-syntax (role-strings e) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ) (⇒ ν-f (~effs fs ...))]
|
||||
#:with (s ...) (for/list ([r (in-syntax #'(fs ...))])
|
||||
(type->strX r))
|
||||
----------------------------------------
|
||||
[⊢ (#%app- list- (#%datum- . s) ...) (⇒ : (List String))])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; LTL Syntax
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-type LTL : LTL)
|
||||
|
||||
(define-type True : LTL)
|
||||
(define-type False : LTL)
|
||||
(define-type Always : LTL -> LTL)
|
||||
(define-type Eventually : LTL -> LTL)
|
||||
(define-type Until : LTL LTL -> LTL)
|
||||
(define-type WeakUntil : LTL LTL -> LTL)
|
||||
(define-type Implies : LTL LTL -> LTL)
|
||||
(define-type And : LTL * -> LTL)
|
||||
(define-type Or : LTL * -> LTL)
|
||||
(define-type Not : LTL -> LTL)
|
||||
(define-type A : Type -> LTL) ;; Assertions
|
||||
(define-type M : Type -> LTL) ;; Messages
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Behavioral Analysis
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(begin-for-syntax
|
||||
|
||||
(define ID-PHASE 0)
|
||||
|
||||
(define-syntax (build-id-table stx)
|
||||
(syntax-parse stx
|
||||
[(_ (~seq key val) ...)
|
||||
#'(make-free-id-table (hash (~@ #'key val) ...) #:phase ID-PHASE)]))
|
||||
|
||||
(define (mk-proto:U . args)
|
||||
(proto:U args))
|
||||
(define (mk-proto:Branch . args)
|
||||
(proto:Branch args))
|
||||
|
||||
(define TRANSLATION#
|
||||
(build-id-table Spawns proto:Spawn
|
||||
Sends proto:Sends
|
||||
Realizes proto:Realizes
|
||||
Shares proto:Shares
|
||||
Know proto:Know
|
||||
Branch mk-proto:Branch
|
||||
Effs list
|
||||
Asserted proto:Asserted
|
||||
Retracted proto:Retracted
|
||||
Message proto:Message
|
||||
Forget proto:Forget
|
||||
Realize proto:Realize
|
||||
U* mk-proto:U
|
||||
Observe proto:Observe
|
||||
List proto:List
|
||||
Set proto:Set
|
||||
Hash proto:Hash
|
||||
OnStart proto:StartEvt
|
||||
OnStop proto:StopEvt
|
||||
OnDataflow proto:DataflowEvt
|
||||
;; LTL
|
||||
True #t
|
||||
False #f
|
||||
Always proto:always
|
||||
Eventually proto:eventually
|
||||
Until proto:strong-until
|
||||
WeakUntil proto:weak-until
|
||||
Implies proto:ltl-implies
|
||||
And proto:&&
|
||||
Or proto:||
|
||||
Not proto:ltl-not
|
||||
A proto:atomic
|
||||
M (compose proto:atomic proto:Message)))
|
||||
|
||||
(define (double-check)
|
||||
(for/first ([id (in-dict-keys TRANSLATION#)]
|
||||
#:when (false? (identifier-binding id)))
|
||||
(pretty-print id)
|
||||
(pretty-print (syntax-debug-info id))))
|
||||
|
||||
(define (synd->proto ty)
|
||||
(let convert ([ty (resugar-type ty)])
|
||||
(syntax-parse ty
|
||||
#:literals (★/t Bind Discard ∀/internal →/internal Role/internal Stop Reacts Actor ActorWithRole)
|
||||
[(ctor:id t ...)
|
||||
#:when (dict-has-key? TRANSLATION# #'ctor)
|
||||
(apply (dict-ref TRANSLATION# #'ctor) (stx-map convert #'(t ...)))]
|
||||
[nm:id
|
||||
#:when (dict-has-key? TRANSLATION# #'nm)
|
||||
(dict-ref TRANSLATION# #'nm)]
|
||||
[(Actor _)
|
||||
(error "only able to convert actors with roles")]
|
||||
[(ActorWithRole _ r)
|
||||
(proto:Spawn (convert #'r))]
|
||||
[★/t proto:⋆]
|
||||
[(Bind t)
|
||||
;; TODO - this is debatable handling
|
||||
(convert #'t)]
|
||||
[Discard
|
||||
;; TODO - should prob have a Discard type in proto
|
||||
proto:⋆]
|
||||
[(∀/internal (X ...) body)
|
||||
;; TODO
|
||||
(error "unimplemented")]
|
||||
[(→/internal ty-in ... ty-out)
|
||||
;; TODO
|
||||
(error "unimplemented")]
|
||||
[(Role/internal (nm) body ...)
|
||||
(proto:Role (syntax-e #'nm) (stx-map convert #'(body ...)))]
|
||||
[(Stop nm body ...)
|
||||
(proto:Stop (syntax-e #'nm) (stx-map convert #'(body ...)))]
|
||||
[(Reacts evt body ...)
|
||||
(define converted-body (stx-map convert #'(body ...)))
|
||||
(define body+
|
||||
(if (= 1 (length converted-body))
|
||||
(first converted-body)
|
||||
converted-body))
|
||||
(proto:Reacts (convert #'evt) body+)]
|
||||
[t:id
|
||||
(proto:Base (syntax-e #'t))]
|
||||
[(ctor:id args ...)
|
||||
;; assume it's a struct
|
||||
(proto:Struct (syntax-e #'ctor) (stx-map convert #'(args ...)))]
|
||||
[unrecognized (error (format "unrecognized type: ~a" #'unrecognized))]))))
|
||||
|
||||
(define-typed-syntax (export-roles dest:string e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ) (⇒ ν-ep (~effs eps ...)) (⇒ ν-f (~effs fs ...)) (⇒ ν-s (~effs ss ...))]
|
||||
#:do [(with-output-to-file (syntax-e #'dest)
|
||||
(thunk (for ([f (in-syntax #'(fs ...))])
|
||||
(pretty-write (synd->proto f))))
|
||||
#:exists 'replace)]
|
||||
----------------------------------------
|
||||
[⊢ e- (⇒ : τ) (⇒ ν-ep (eps ...)) (⇒ ν-f (fs ...)) (⇒ ν-s (ss ...))])
|
||||
|
||||
(define-typed-syntax (export-type dest:string τ:type) ≫
|
||||
#:do [(with-output-to-file (syntax-e #'dest)
|
||||
(thunk (pretty-write (synd->proto #'τ.norm)))
|
||||
#:exists 'replace)]
|
||||
----------------------------------------
|
||||
[⊢ (#%app- void-) (⇒ : ★/t)])
|
||||
|
||||
(define-typed-syntax (lift+define-role x:id e:expr) ≫
|
||||
[⊢ e ≫ e- (⇒ : τ) (⇒ ν-ep (~effs)) (⇒ ν-f ((~and r (~Role (_) _ ...)))) (⇒ ν-s (~effs))]
|
||||
;; because turnstile introduces a lot of intdef scopes; ideally, we'd be able to synthesize somethign
|
||||
;; with the right module scopes
|
||||
#:with x+ (syntax-local-introduce (datum->syntax #f (syntax-e #'x)))
|
||||
#:do [(define r- (synd->proto #'r))
|
||||
(syntax-local-lift-module-end-declaration #`(define- x+ '#,r-))]
|
||||
----------------------------------------
|
||||
[⊢ e- (⇒ : τ) (⇒ ν-ep ()) (⇒ ν-f (r)) (⇒ ν-s ())])
|
||||
|
||||
|
||||
;; Type Type -> Bool
|
||||
;; (normalized Types)
|
||||
(define-for-syntax (simulating-types? ty-impl ty-spec)
|
||||
(define ty-impl- (synd->proto ty-impl))
|
||||
(define ty-spec- (synd->proto ty-spec))
|
||||
(proto:simulates?/report-error ty-impl- ty-spec-))
|
||||
|
||||
;; Type Type -> Bool
|
||||
;; (normalized Types)
|
||||
(define-for-syntax (type-has-simulating-subgraphs? ty-impl ty-spec)
|
||||
(define ty-impl- (synd->proto ty-impl))
|
||||
(define ty-spec- (synd->proto ty-spec))
|
||||
(define ans (proto:find-simulating-subgraph/report-error ty-impl- ty-spec-))
|
||||
(unless ans
|
||||
(pretty-print ty-impl-)
|
||||
(pretty-print ty-spec-))
|
||||
ans)
|
||||
|
||||
(define- (ensure-Role! r)
|
||||
(unless- (#%app- proto:Role? r)
|
||||
(#%app- error- 'check-simulates "expected a Role type, got " r))
|
||||
r)
|
||||
|
||||
(begin-for-syntax
|
||||
(define-syntax-class type-or-proto
|
||||
#:attributes (role)
|
||||
(pattern t:type #:attr role #`(quote- #,(synd->proto #'t.norm)))
|
||||
(pattern x:id #:attr role #'(#%app- ensure-Role! x))
|
||||
#;(pattern ((~literal quote-) r)
|
||||
#:do [(define r- (syntax-e ))]
|
||||
#:when (proto:Role? r-)
|
||||
#:attr role r-)))
|
||||
|
||||
(require rackunit)
|
||||
|
||||
(define-syntax-parser check-simulates
|
||||
[(_ τ-impl:type-or-proto τ-spec:type-or-proto)
|
||||
(syntax/loc this-syntax
|
||||
(check-true (#%app- proto:simulates?/report-error τ-impl.role τ-spec.role)))])
|
||||
|
||||
(define-syntax-parser check-has-simulating-subgraph
|
||||
[(_ τ-impl:type-or-proto τ-spec:type-or-proto)
|
||||
(syntax/loc this-syntax
|
||||
(check-not-false (#%app- proto:find-simulating-subgraph/report-error τ-impl.role τ-spec.role)))])
|
||||
|
||||
(define-syntax-parser verify-actors
|
||||
[(_ spec actor-ty:type-or-proto ...)
|
||||
#:with spec- #`(quote- #,(synd->proto (type-eval #'spec)))
|
||||
(syntax/loc this-syntax
|
||||
(check-true (#%app- proto:compile+verify spec- (#%app- list- actor-ty.role ...))))])
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Tests
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(module+ test
|
||||
(check-type
|
||||
(spawn (U (Observe (Tuple Int ★/t)))
|
||||
(start-facet echo
|
||||
(on (message (tuple 1 $x:Int))
|
||||
#f)))
|
||||
: ★/t)
|
||||
(check-type (spawn (U (Message (Tuple String Int))
|
||||
(Observe (Tuple String ★/t)))
|
||||
(start-facet echo
|
||||
(on (message (tuple "ping" $x))
|
||||
(send! (tuple "pong" x)))))
|
||||
: ★/t)
|
||||
(typecheck-fail (spawn (U (Message (Tuple String Int))
|
||||
(Message (Tuple String String))
|
||||
(Observe (Tuple String ★/t)))
|
||||
(start-facet echo
|
||||
(on (message (tuple "ping" (bind x Int)))
|
||||
(send! (tuple "pong" x)))))))
|
||||
|
||||
;; local definitions
|
||||
#;(module+ test
|
||||
;; these cause an error in rackunit-typechecking, don't know why :/
|
||||
#;(check-type (let ()
|
||||
(begin
|
||||
(define id : Int 1234)
|
||||
id))
|
||||
: Int
|
||||
-> 1234)
|
||||
#;(check-type (let ()
|
||||
(define (spawn-cell [initial-value : Int])
|
||||
(define id 1234)
|
||||
id)
|
||||
(typed-app spawn-cell 42))
|
||||
: Int
|
||||
-> 1234)
|
||||
(check-equal? (let ()
|
||||
(define id : Int 1234)
|
||||
id)
|
||||
1234)
|
||||
#;(check-equal? (let ()
|
||||
(define (spawn-cell [initial-value : Int])
|
||||
(define id 1234)
|
||||
id)
|
||||
(typed-app spawn-cell 42))
|
||||
1234))
|
|
@ -1,2 +1,2 @@
|
|||
#lang s-exp syntax/module-reader
|
||||
typed/roles
|
||||
typed/syndicate/roles
|
||||
|
|
|
@ -0,0 +1,12 @@
|
|||
#!/bin/sh
|
||||
|
||||
pushd ${1%/*}/
|
||||
|
||||
EXE="$1-verifier.o"
|
||||
|
||||
spin -a $1
|
||||
gcc -o $EXE pan.c
|
||||
$EXE -a -f -n -N $2
|
||||
rm $EXE pan.c
|
||||
|
||||
popd
|
|
@ -0,0 +1,60 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide Sequence
|
||||
(for-syntax ~Sequence)
|
||||
empty-sequence
|
||||
sequence->list
|
||||
sequence-length
|
||||
sequence-ref
|
||||
sequence-tail
|
||||
sequence-append
|
||||
sequence-map
|
||||
sequence-andmap
|
||||
sequence-ormap
|
||||
sequence-fold
|
||||
sequence-count
|
||||
sequence-filter
|
||||
sequence-add-between
|
||||
in-list
|
||||
in-set
|
||||
in-hash-keys
|
||||
in-hash-values
|
||||
in-range
|
||||
)
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require (only-in "list.rkt" List))
|
||||
(require (only-in "set.rkt" Set))
|
||||
(require (only-in "hash.rkt" Hash))
|
||||
(require (only-in "prim.rkt" Int Bool))
|
||||
#;(require (postfix-in - racket/sequence))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Sequences
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-container-type Sequence #:arity = 1)
|
||||
|
||||
(require/typed racket/sequence
|
||||
[empty-sequence : (Sequence (U))]
|
||||
[sequence->list : (∀ (X) (→fn (Sequence X) (List X)))]
|
||||
[sequence-length : (∀ (X) (→fn (Sequence X) Int))]
|
||||
[sequence-ref : (∀ (X) (→fn (Sequence X) Int Int))]
|
||||
[sequence-tail : (∀ (X) (→fn (Sequence X) Int (Sequence X)))]
|
||||
[sequence-append : (∀ (X) (→fn (Sequence X) (Sequence X) (Sequence X)))]
|
||||
[sequence-map : (∀ (A B) (→fn (→fn A B) (Sequence A) (Sequence B)))]
|
||||
[sequence-andmap : (∀ (X) (→fn (→fn X Bool) (Sequence X) Bool))]
|
||||
[sequence-ormap : (∀ (X) (→fn (→fn X Bool) (Sequence X) Bool))]
|
||||
;; sequence-for-each omitted until a better accounting of effects (TODO)
|
||||
[sequence-fold : (∀ (A B) (→fn (→fn A B A) (Sequence B) A))]
|
||||
[sequence-count : (∀ (X) (→fn (→fn X Bool) (Sequence X) Int))]
|
||||
[sequence-filter : (∀ (X) (→fn (→fn X Bool) (Sequence X) (Sequence X)))]
|
||||
[sequence-add-between : (∀ (X) (→fn (Sequence X) X (Sequence X)))])
|
||||
|
||||
(require/typed racket/base
|
||||
[in-list : (∀ (X) (→fn (List X) (Sequence X)))]
|
||||
[in-hash-keys : (∀ (K V) (→fn (Hash K V) (Sequence K)))]
|
||||
[in-hash-values : (∀ (K V) (→fn (Hash K V) (Sequence V)))]
|
||||
[in-range : (→fn Int (Sequence Int))])
|
||||
(require/typed racket/set
|
||||
[in-set : (∀ (X) (→fn (Set X) (Sequence X)))])
|
|
@ -0,0 +1,66 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide Set
|
||||
(for-syntax ~Set)
|
||||
set
|
||||
;; set-member?
|
||||
;; set-add
|
||||
;; set-remove
|
||||
;; set-count
|
||||
set-union
|
||||
set-subtract
|
||||
set-intersect
|
||||
;; list->set
|
||||
;; set->list
|
||||
(typed-out [[set-first- : (∀ (X) (→fn (Set X) X))] set-first]
|
||||
[[set-empty?- : (∀ (X) (→fn (Set X) Bool))] set-empty?]
|
||||
[[set-count- : (∀ (X) (→fn (Set X) Int))] set-count]
|
||||
[[set-add- : (∀ (X) (→fn (Set X) X (Set X)))] set-add]
|
||||
[[set-remove- : (∀ (X) (→fn (Set X) X (Set X)))] set-remove]
|
||||
[[set-member?- : (∀ (X) (→fn (Set X) X Bool))] set-member?]
|
||||
[[list->set- : (∀ (X) (→fn (List X) (Set X)))] list->set]
|
||||
[[set->list- : (∀ (X) (→fn (Set X) (List X)))] set->list]
|
||||
))
|
||||
|
||||
(require "core-types.rkt")
|
||||
(require (only-in "prim.rkt" Int Bool))
|
||||
(require (only-in "list.rkt" ~List List))
|
||||
|
||||
(require (postfix-in - racket/set))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Sets
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-container-type Set #:arity = 1)
|
||||
|
||||
(define-typed-syntax (set e ...) ≫
|
||||
[⊢ e ≫ e- ⇒ τ] ...
|
||||
#:fail-unless (all-pure? #'(e- ...)) "expressions must be pure"
|
||||
---------------
|
||||
[⊢ (#%app- set- e- ...) ⇒ (Set (U τ ...))])
|
||||
|
||||
(define-typed-syntax (set-union st0 st ...) ≫
|
||||
[⊢ st0 ≫ st0- ⇒ (~Set τ-st0)]
|
||||
#:fail-unless (pure? #'st0-) "expression must be pure"
|
||||
[⊢ st ≫ st- ⇒ (~Set τ-st)] ...
|
||||
#:fail-unless (all-pure? #'(st- ...)) "expressions must be pure"
|
||||
-------------------------------------
|
||||
[⊢ (#%app- set-union- st0- st- ...) ⇒ (Set (U τ-st0 τ-st ...))])
|
||||
|
||||
(define-typed-syntax (set-intersect st0 st ...) ≫
|
||||
[⊢ st0 ≫ st0- ⇒ (~Set τ-st0)]
|
||||
#:fail-unless (pure? #'st0-) "expression must be pure"
|
||||
[⊢ st ≫ st- ⇒ (~Set τ-st)] ...
|
||||
#:fail-unless (all-pure? #'(st- ...)) "expressions must be pure"
|
||||
#:with τr (∩ #'τ-st0 (type-eval #'(U τ-st ...)))
|
||||
-------------------------------------
|
||||
[⊢ (#%app- set-intersect- st0- st- ...) ⇒ (Set τr)])
|
||||
|
||||
(define-typed-syntax (set-subtract st0 st ...) ≫
|
||||
[⊢ st0 ≫ st0- ⇒ (~Set τ-st0)]
|
||||
#:fail-unless (pure? #'st0-) "expression must be pure"
|
||||
[⊢ st ≫ st- ⇒ (~Set _)] ...
|
||||
#:fail-unless (all-pure? #'(st- ...)) "expressions must be pure"
|
||||
-------------------------------------
|
||||
[⊢ (#%app- set-subtract- st0- st- ...) ⇒ (Set τ-st0)])
|
|
@ -0,0 +1,10 @@
|
|||
/* Useful macros */
|
||||
|
||||
#define ASSERTED(x) (x##_assertions > 0)
|
||||
#define RETRACTED(x) (x##_assertions == 0)
|
||||
#define ASSERT(x) x##_assertions = x##_assertions + 1
|
||||
#define RETRACT(x) x##_assertions = x##_assertions - 1
|
||||
#define SEND(x) x##_messages = x##_messages + 1
|
||||
|
||||
/* Rest of Program */
|
||||
|
|
@ -0,0 +1,302 @@
|
|||
#lang racket/base
|
||||
|
||||
(provide serialize-syntax deserialize-syntax)
|
||||
|
||||
(require racket/dict racket/match)
|
||||
|
||||
(struct serialized-syntax (unique-tag table contents) #:prefab)
|
||||
(struct stx-with-props (stx ps) #:prefab)
|
||||
(struct syntax-val (stx) #:prefab)
|
||||
(struct datum-val (d) #:prefab)
|
||||
(struct ref (unique-tag sym) #:prefab)
|
||||
|
||||
;(require racket/pretty)
|
||||
|
||||
(define (serialize-syntax stx)
|
||||
(define unique-tag (gensym))
|
||||
(define table (hasheq))
|
||||
(define dedup-table (hasheq))
|
||||
(define (dedup k f)
|
||||
(if (hash-has-key? dedup-table k)
|
||||
(hash-ref dedup-table k)
|
||||
(let ([res (f)])
|
||||
(set! dedup-table (hash-set dedup-table k res))
|
||||
res)))
|
||||
|
||||
(define (lift! el)
|
||||
(define tag-sym (gensym))
|
||||
(set! table (hash-set table tag-sym el))
|
||||
(ref unique-tag tag-sym))
|
||||
|
||||
(define (build-props! orig-s d)
|
||||
(stx-with-props
|
||||
(datum->syntax orig-s d orig-s #f)
|
||||
(for/list ([k (syntax-property-symbol-keys orig-s)]
|
||||
#:when (syntax-property-preserved? orig-s k))
|
||||
(define val (syntax-property orig-s k))
|
||||
(define serialized-val
|
||||
(if (syntax? val)
|
||||
(syntax-val (serialize-element! val))
|
||||
(datum-val (serialize-element! val #:always-lift? #t))))
|
||||
(cons k serialized-val))))
|
||||
|
||||
(define (serialize-element! el #:always-lift? [always-lift? #f])
|
||||
(dedup
|
||||
el
|
||||
(lambda ()
|
||||
(syntax-map
|
||||
el
|
||||
(lambda (tail? d) d)
|
||||
(lambda (orig-s d)
|
||||
;(when (and always-lift? (not (ref? (hash-ref dedup-table orig-s)))) ; TODO
|
||||
;(error 'dedup "lift error"))
|
||||
(dedup
|
||||
orig-s
|
||||
(lambda ()
|
||||
(if (or always-lift?
|
||||
(ormap (lambda (p) (syntax-property-preserved? orig-s p))
|
||||
(syntax-property-symbol-keys orig-s)))
|
||||
(lift! (build-props! orig-s d))
|
||||
(datum->syntax orig-s d orig-s #f)))))
|
||||
syntax-e))))
|
||||
|
||||
(define top-s (serialize-element! stx))
|
||||
(define res (datum->syntax #f (serialized-syntax unique-tag table top-s)))
|
||||
|
||||
res)
|
||||
|
||||
(define (deserialize-syntax ser)
|
||||
(match (syntax-e ser)
|
||||
[(serialized-syntax unique-tag-stx table-stx contents)
|
||||
(define unique-tag (syntax-e unique-tag-stx))
|
||||
(define table (syntax-e table-stx))
|
||||
(define dedup-table (hasheq))
|
||||
(define (dedup k f)
|
||||
(if (hash-has-key? dedup-table k)
|
||||
(hash-ref dedup-table k)
|
||||
(let ([res (f)])
|
||||
(set! dedup-table (hash-set dedup-table k res))
|
||||
res)))
|
||||
|
||||
|
||||
(define (maybe-syntax-e v)
|
||||
(if (syntax? v) (syntax-e v) v))
|
||||
|
||||
(define (deserialize-stx-with-props ref-sym)
|
||||
(match-define (stx-with-props stx ps) (syntax-e (hash-ref table ref-sym)))
|
||||
(define deserialized-nested-stx (deserialize-element stx))
|
||||
(for/fold ([stx deserialized-nested-stx])
|
||||
([stx-pr (syntax->list ps)])
|
||||
(define pr (syntax-e stx-pr))
|
||||
(define k (syntax-e (car pr)))
|
||||
(define v (syntax-e (cdr pr)))
|
||||
(define prop-val
|
||||
(match v
|
||||
[(syntax-val v)
|
||||
(deserialize-element v)]
|
||||
[(datum-val v)
|
||||
(deserialize-element (syntax->datum v))]))
|
||||
(syntax-property stx k prop-val #t)))
|
||||
|
||||
(define (deserialize-element el)
|
||||
(dedup
|
||||
el
|
||||
(lambda ()
|
||||
(syntax-map
|
||||
el
|
||||
(lambda (tail? d)
|
||||
(match d
|
||||
[(ref tag sym)
|
||||
#:when (equal? (maybe-syntax-e tag) unique-tag)
|
||||
(dedup
|
||||
sym
|
||||
(lambda () (deserialize-stx-with-props (maybe-syntax-e sym))))]
|
||||
[_ d]))
|
||||
(lambda (orig-s d)
|
||||
(dedup
|
||||
orig-s
|
||||
(lambda () (datum->syntax orig-s d orig-s #f))))
|
||||
syntax-e))))
|
||||
|
||||
(define res (deserialize-element contents))
|
||||
res]))
|
||||
|
||||
(module+ test
|
||||
(require rackunit)
|
||||
|
||||
(define type
|
||||
(syntax-property
|
||||
(syntax-property #'Int ':: #'Type #t)
|
||||
'orig (list #'Int) #t))
|
||||
(define term (syntax-property #`(1 #,(syntax-property #'2 ': type #t)) ': #'Type #t))
|
||||
(define s (serialize-syntax term))
|
||||
(define d (deserialize-syntax s))
|
||||
|
||||
(check-true
|
||||
(bound-identifier=?
|
||||
(syntax-property d ':)
|
||||
#'Type))
|
||||
|
||||
; syntax with properties inside outer syntax with properties.
|
||||
(check-true
|
||||
(bound-identifier=?
|
||||
(syntax-property (syntax-property (cadr (syntax-e d)) ':) '::)
|
||||
#'Type))
|
||||
|
||||
(check-true
|
||||
(bound-identifier=?
|
||||
(syntax-property (cadr (syntax-e d)) ':)
|
||||
#'Int))
|
||||
|
||||
(check-equal?
|
||||
(syntax-position term)
|
||||
(syntax-position d))
|
||||
|
||||
(check-equal?
|
||||
(syntax-position (syntax-property (cadr (syntax-e term)) ':))
|
||||
(syntax-position (syntax-property (cadr (syntax-e d)) ':)))
|
||||
|
||||
(check-equal?
|
||||
(syntax-position (car (syntax-e term)))
|
||||
(syntax-position (car (syntax-e d))))
|
||||
|
||||
; syntax in datum in properties
|
||||
(check-true
|
||||
(bound-identifier=?
|
||||
(car (syntax-property (syntax-property (cadr (syntax-e d)) ':) 'orig))
|
||||
#'Int))
|
||||
)
|
||||
|
||||
|
||||
;; ----------------------------------------------------------------
|
||||
|
||||
;; syntax-map and datum-map copied from the expander files
|
||||
;; syntax/datum-map.rkt
|
||||
;; syntax/syntax.rkt
|
||||
|
||||
(require racket/fixnum racket/prefab)
|
||||
|
||||
;; `(datum-map v f)` walks over `v`, traversing objects that
|
||||
;; `datum->syntax` traverses to convert content to syntax objects.
|
||||
;;
|
||||
;; `(f tail? d)` is called on each datum `d`, where `tail?`
|
||||
;; indicates that the value is a pair/null in a `cdr` --- so that it
|
||||
;; doesn't need to be wrapped for `datum->syntax`, for example;
|
||||
;; the `tail?` argument is actually #f or a fixnum for a lower bound
|
||||
;; on `cdr`s that have been taken
|
||||
;;
|
||||
;; `gf` is like `f`, but `gf` is used when the argument might be
|
||||
;; syntax; if `gf` is provided, `f` can assume that its argument
|
||||
;; is not syntax
|
||||
;;
|
||||
;; If a `seen` argument is provided, then it should be an `eq?`-based
|
||||
;; hash table, and cycle checking is enabled; when a cycle is
|
||||
;; discovered, the procedure attached to 'cycle-fail in the initial
|
||||
;; table is called
|
||||
;;
|
||||
;; If a `known-pairs` argument is provided, then it should be an
|
||||
;; `eq?`-based hash table to map pairs that can be returned as-is
|
||||
;; in a `tail?` position
|
||||
|
||||
;; The inline version uses `f` only in an application position to
|
||||
;; help avoid allocating a closure. It also covers only the most common
|
||||
;; cases, defering to the general (not inlined) function for other cases.
|
||||
(define (datum-map s f [gf f] [seen #f] [known-pairs #f])
|
||||
(let loop ([tail? #f] [s s] [prev-depth 0])
|
||||
(define depth (fx+ 1 prev-depth)) ; avoid cycle-checking overhead for shallow cases
|
||||
(cond
|
||||
[(and seen (depth . fx> . 32))
|
||||
(datum-map-slow tail? s (lambda (tail? s) (gf tail? s)) seen known-pairs)]
|
||||
[(null? s) (f tail? s)]
|
||||
[(pair? s)
|
||||
(f tail? (cons (loop #f (car s) depth)
|
||||
(loop 1 (cdr s) depth)))]
|
||||
[(symbol? s) (f #f s)]
|
||||
[(boolean? s) (f #f s)]
|
||||
[(number? s) (f #f s)]
|
||||
[(or (vector? s) (box? s) (prefab-struct-key s) (hash? s))
|
||||
(datum-map-slow tail? s (lambda (tail? s) (gf tail? s)) seen known-pairs)]
|
||||
[else (gf #f s)])))
|
||||
|
||||
(define (datum-map-slow tail? s f seen known-pairs)
|
||||
(let loop ([tail? tail?] [s s] [prev-seen seen])
|
||||
(define seen
|
||||
(cond
|
||||
[(and prev-seen (datum-has-elements? s))
|
||||
(cond
|
||||
[(hash-ref prev-seen s #f)
|
||||
((hash-ref prev-seen 'cycle-fail) s)]
|
||||
[else (hash-set prev-seen s #t)])]
|
||||
[else prev-seen]))
|
||||
(cond
|
||||
[(null? s) (f tail? s)]
|
||||
[(pair? s)
|
||||
(cond
|
||||
[(and known-pairs
|
||||
tail?
|
||||
(hash-ref known-pairs s #f))
|
||||
s]
|
||||
[else
|
||||
(f tail? (cons (loop #f (car s) seen)
|
||||
(loop (if tail? (fx+ 1 tail?) 1) (cdr s) seen)))])]
|
||||
[(or (symbol? s) (boolean? s) (number? s))
|
||||
(f #f s)]
|
||||
[(vector? s)
|
||||
(f #f (vector->immutable-vector
|
||||
(for/vector #:length (vector-length s) ([e (in-vector s)])
|
||||
(loop #f e seen))))]
|
||||
[(box? s)
|
||||
(f #f (box-immutable (loop #f (unbox s) seen)))]
|
||||
[(immutable-prefab-struct-key s)
|
||||
=> (lambda (key)
|
||||
(f #f
|
||||
(apply make-prefab-struct
|
||||
key
|
||||
(for/list ([e (in-vector (struct->vector s) 1)])
|
||||
(loop #f e seen)))))]
|
||||
[(and (hash? s) (immutable? s))
|
||||
(cond
|
||||
[(hash-eq? s)
|
||||
(f #f
|
||||
(for/hasheq ([(k v) (in-hash s)])
|
||||
(values k (loop #f v seen))))]
|
||||
[(hash-eqv? s)
|
||||
(f #f
|
||||
(for/hasheqv ([(k v) (in-hash s)])
|
||||
(values k (loop #f v seen))))]
|
||||
[else
|
||||
(f #f
|
||||
(for/hash ([(k v) (in-hash s)])
|
||||
(values k (loop #f v seen))))])]
|
||||
[else (f #f s)])))
|
||||
|
||||
(define (datum-has-elements? d)
|
||||
(or (pair? d)
|
||||
(vector? d)
|
||||
(box? d)
|
||||
(immutable-prefab-struct-key d)
|
||||
(and (hash? d) (immutable? d) (positive? (hash-count d)))))
|
||||
|
||||
;; `(syntax-map s f d->s)` walks over `s`:
|
||||
;;
|
||||
;; * `(f tail? d)` is called to each datum `d`, where `tail?`
|
||||
;; indicates that the value is a pair/null in a `cdr` --- so that it
|
||||
;; doesn't need to be wrapped for `datum->syntax`, for example
|
||||
;;
|
||||
;; * `(d->s orig-s d)` is called for each syntax object,
|
||||
;; and the second argument is result of traversing its datum
|
||||
;;
|
||||
;; * the `s-e` function extracts content of a syntax object
|
||||
;;
|
||||
;; The optional `seen` argument is an `eq?`-based immutable hash table
|
||||
;; to detect and reject cycles. See `datum-map`.
|
||||
|
||||
(define (syntax-map s f d->s s-e [seen #f])
|
||||
(let loop ([s s])
|
||||
(datum-map s
|
||||
f
|
||||
(lambda (tail? v)
|
||||
(cond
|
||||
[(syntax? v) (d->s v (loop (s-e v)))]
|
||||
[else (f tail? v)]))
|
||||
seen)))
|
|
@ -0,0 +1,17 @@
|
|||
#lang racket/base
|
||||
|
||||
(provide run/timeout
|
||||
define/timeout)
|
||||
|
||||
(require racket/engine)
|
||||
|
||||
;; (-> A) Real -> (U A Engine)
|
||||
;; run the given thunk in an engine for 'fuel' milliseconds
|
||||
;; if the engine completes, returns the result, otherwise the engine itself
|
||||
(define (run/timeout tnk [fuel 1000])
|
||||
(define e (engine (lambda (p) (tnk))))
|
||||
(define r (engine-run fuel e))
|
||||
(if r (engine-result e) e))
|
||||
|
||||
(define-syntax-rule (define/timeout x e)
|
||||
(define x (run/timeout (lambda () e))))
|
|
@ -1,4 +1,4 @@
|
|||
#lang typed/syndicate/roles
|
||||
#lang typed/syndicate
|
||||
|
||||
(require rackunit/turnstile)
|
||||
|
||||
|
|
|
@ -0,0 +1,26 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(assertion-struct ping : Ping (v))
|
||||
(assertion-struct pong : Pong (v))
|
||||
|
||||
(assertion-struct flip : Flip (v))
|
||||
(assertion-struct flop : Flop (v))
|
||||
|
||||
(define-type-alias Pinger (Ping Int))
|
||||
(define-type-alias Ponger (U (Ping Int)
|
||||
(Pong Int)
|
||||
(Observe (Ping ★/t))))
|
||||
(define-type-alias PingPong (U Pinger Ponger))
|
||||
|
||||
(define-type-alias Flipper (Flip Int))
|
||||
(define-type-alias Flopper (U (Flip Int)
|
||||
(Flop Int)
|
||||
(Observe (Flip ★/t))))
|
||||
(define-type-alias FlipFlop (U Flipper Flopper))
|
||||
|
||||
(run-ground-dataspace (U PingPong FlipFlop)
|
||||
(spawn Pinger (start-facet _ (assert (ping 5))))
|
||||
(spawn Ponger (start-facet _ (during (ping $v) (assert (pong v)))))
|
||||
|
||||
(spawn Flipper (start-facet _ (assert (flip 8))))
|
||||
(spawn Flopper (start-facet _ (during (flip $v) (assert (flop v))))))
|
|
@ -0,0 +1,11 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(run-ground-dataspace (U)
|
||||
(spawn (U)
|
||||
(start-facet x
|
||||
(field [y Int 0])
|
||||
(define/dataflow x (add1 (ref y)))
|
||||
(displayln (add1 (ref x)))
|
||||
;; print 2
|
||||
#f))
|
||||
)
|
|
@ -0,0 +1,17 @@
|
|||
#lang typed/syndicate
|
||||
|
||||
(require rackunit/turnstile)
|
||||
|
||||
(define (∀ (ρ) (assert-something! [p : (proc → ★/t #:endpoints (ρ))]))
|
||||
(p))
|
||||
|
||||
(define (test-fun)
|
||||
(call/inst assert-something! (lambda () (assert 5))))
|
||||
|
||||
|
||||
(check-type test-fun : (proc → ★/t #:endpoints ((Shares Int))))
|
||||
|
||||
(define (test-call/inst-insertion)
|
||||
(assert-something! (lambda () (assert 5))))
|
||||
|
||||
(check-type test-call/inst-insertion : (proc → ★/t #:endpoints ((Shares Int))))
|
Some files were not shown because too many files have changed in this diff Show More
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Reference in New Issue