Sam Caldwell
parent
1b0f41f465
commit
7117816a74
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@ -5,16 +5,6 @@
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(require (for-syntax turnstile/examples/util/filter-maximal))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Helpers
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(begin-for-syntax
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(define ((all-args-are variance) stx)
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(syntax-parse stx
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[(_ t ...)
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(make-list (stx-length #'(t ...)) variance)])))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Types
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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@ -26,26 +16,21 @@
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(define-type-constructor Know #:arity = 1)
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(define-type-constructor ¬Know #:arity = 1)
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(define-type-constructor Stop #:arity >= 1)
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(define-type-constructor Message #:arity = 1
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#:arg-variances (all-args-are covariant))
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(define-type-constructor Message #:arity = 1)
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(define-type-constructor Field #:arity = 1)
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(define-type-constructor Bind #:arity = 1)
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(define-base-types OnStart OnStop OnDataflow MakesField)
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(define-for-syntax field-prop-name 'fields)
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(define-type-constructor Tuple #:arity >= 0
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#:arg-variances (all-args-are covariant))
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(define-type-constructor Observe #:arity = 1
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#:arg-variances (all-args-are covariant))
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(define-type-constructor Inbound #:arity = 1
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#:arg-variances (all-args-are covariant))
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(define-type-constructor Outbound #:arity = 1
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#:arg-variances (all-args-are covariant))
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(define-type-constructor Tuple #:arity >= 0)
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(define-type-constructor Observe #:arity = 1)
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(define-type-constructor Inbound #:arity = 1)
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(define-type-constructor Outbound #:arity = 1)
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(define-type-constructor Actor #:arity = 1)
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(define-type-constructor AssertionSet #:arity = 1
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#:arg-variances (all-args-are covariant))
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(define-type-constructor Patch #:arity = 2
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#:arg-variances (all-args-are covariant))
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(define-type-constructor AssertionSet #:arity = 1)
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(define-type-constructor Patch #:arity = 2)
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(define-type-constructor List #:arity = 1)
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(define-type-constructor Set #:arity = 1)
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(define-type-constructor → #:arity > 0)
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;; for describing the RHS
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@ -59,12 +44,10 @@
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(define-base-types Discard ★/t FacetName)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Unions
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define-type-constructor U* #:arity >= 0)
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(define-for-syntax (prune+sort tys)
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(stx-sort
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(filter-maximal
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@ -79,26 +62,4 @@
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#:with tys- (prune+sort #'(ty1- ... ... ty2- ...))
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(if (= 1 (stx-length #'tys-))
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(stx-car #'tys-)
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(syntax/loc stx (U* . tys-)))]))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Type Aliases
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; τ.norm in 1st case causes "not valid type" error when referring to ⊥ in another file.
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;; however, this version expands the type at every reference, incurring a potentially large
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;; overhead---2x in the case of book-club.rkt
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;; (copied from ext-stlc example)
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(define-syntax define-type-alias
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(syntax-parser
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[(_ alias:id τ)
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#'(define-syntax- alias
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(make-variable-like-transformer #'τ))]
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[(_ (f:id x:id ...) ty)
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#'(define-syntax- (f stx)
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(syntax-parse stx
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[(_ x ...)
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#:with τ:any-type #'ty
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#'τ.norm]))]))
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(define-type-alias ⊥ (U*))
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(syntax/loc stx (U* . tys-)))]))
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@ -1,136 +0,0 @@
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#lang turnstile
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(provide (all-defined-out)
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(for-syntax (all-defined-out)))
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(require "effects.rkt")
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(require (prefix-in syndicate: (only-in syndicate/actor-lang field)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Debugging
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define-for-syntax DEBUG-BINDINGS? #f)
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(define-for-syntax (int-def-ctx-bind-type-rename x x- t ctx)
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(when DEBUG-BINDINGS?
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(printf "adding to context ~a\n" (syntax-debug-info x)))
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(syntax-local-bind-syntaxes (list x-) #f ctx)
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(syntax-local-bind-syntaxes (list x)
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#`(make-rename-transformer
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(add-orig (assign-type #'#,x- #'#,t #:wrap? #f) #'#,x))
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ctx))
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(define-for-syntax (add-bindings-to-ctx e- def-ctx)
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(syntax-parse e-
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#:literals (erased field/intermediate define/intermediate begin-)
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[(erased (field/intermediate (x:id x-:id τ e-) ...))
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(for ([orig-name (in-syntax #'(x ... ))]
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[new-name (in-syntax #'(x- ...))]
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[field-ty (in-syntax #'(τ ...))])
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(int-def-ctx-bind-type-rename orig-name new-name field-ty def-ctx))]
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[(erased (define/intermediate x:id x-:id τ e-))
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(int-def-ctx-bind-type-rename #'x #'x- #'τ def-ctx)]
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#;[(erased (begin- e ...))
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(for ([e (in-syntax #'(e ...))])
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(add-bindings-to-ctx e def-ctx))]
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[_ (void)]))
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(define-for-syntax (display-ctx-bindings ctx)
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(printf "context:\n")
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(for ([x (in-list (internal-definition-context-binding-identifiers ctx))])
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(printf ">>~a\n" (syntax-debug-info x))))
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;; -> (Values e-... (Listof Type) (Listof EndpointEffects) (Listof FacetEffects) (Listof SpawnEffects))
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;; recognizes local binding forms
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;; (field/intermediate [x e] ...
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;; (define/intermediate x x- τ e)
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(define-for-syntax (walk/bind e...
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[def-ctx (syntax-local-make-definition-context)]
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[unique (gensym 'walk/bind)])
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(define-values (rev-e-... rev-τ... ep-effects facet-effects spawn-effects)
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(let loop ([e... (syntax->list e...)]
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[rev-e-... '()]
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[rev-τ... '()]
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[ep-effects '()]
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[facet-effects '()]
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[spawn-effects '()])
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(match e...
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['()
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(values rev-e-... rev-τ... ep-effects facet-effects spawn-effects)]
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[(cons e more)
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(when (and DEBUG-BINDINGS?
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(identifier? e))
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(display-ctx-bindings def-ctx)
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(printf "expanding ~a\n" (syntax-debug-info e)))
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(define e- (local-expand e (list unique) (list #'erased #'begin) def-ctx))
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(syntax-parse e-
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#:literals (begin)
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[(begin e ...)
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(loop (append (syntax->list #'(e ...)) more)
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rev-e-...
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rev-τ...
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ep-effects
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facet-effects
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spawn-effects)]
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[_
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(define τ (syntax-property e- ':))
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(define-values (ep-effs f-effs s-effs)
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(values (syntax->list (get-effect e- 'ep))
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(syntax->list (get-effect e- 'f))
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(syntax->list (get-effect e- 's))))
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(add-bindings-to-ctx e- def-ctx)
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(loop more
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(cons e- rev-e-...)
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(cons τ rev-τ...)
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(append ep-effs ep-effects)
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(append f-effs facet-effects)
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(append s-effs spawn-effects))])])))
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(values (reverse rev-e-...)
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(reverse rev-τ...)
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ep-effects
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facet-effects
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spawn-effects))
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(define-syntax (field/intermediate stx)
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(syntax-parse stx
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[(_ [x:id x-:id τ e-] ...)
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#'(syndicate:field [x- e-] ...)]))
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(define-syntax (define/intermediate stx)
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(syntax-parse stx
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[(_ x:id x-:id τ e)
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#:with x+ (add-orig (assign-type #'x- #'τ #:wrap? #f) #'x)
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;; including a syntax binding for x allows for module-top-level references
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;; (where walk/bind won't replace further uses) and subsequent provides
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#'(begin-
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(define-syntax x (make-variable-like-transformer #'x+))
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(define- x+ e))]))
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;; copied from ext-stlc
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(define-typed-syntax define
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[(_ x:id (~datum :) τ:type e:expr) ≫
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[⊢ e ≫ e- ⇐ τ.norm]
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#:fail-unless (pure? #'e-) "expression must be pure"
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#:with x- (generate-temporary #'x)
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#:with x+ (syntax-local-identifier-as-binding #'x)
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--------
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[⊢ (define/intermediate x+ x- τ.norm e-) (⇒ : ★/t)]]
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[(_ x:id e) ≫
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;This won't work with mutually recursive definitions
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[⊢ e ≫ e- ⇒ τ]
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#:fail-unless (pure? #'e-) "expression must be pure"
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#:with x- (generate-temporary #'x)
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#:with x+ (syntax-local-identifier-as-binding #'x)
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--------
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[⊢ (define/intermediate x+ x- τ e-) (⇒ : ★/t)]])
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(define-typed-syntax begin
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[(_ e_unit ... e) ≫
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#:do [(define-values (e-... τ... ep-effs f-effs s-effs) (walk/bind #'(e_unit ... e)))]
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#:with τ (last τ...)
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--------
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[⊢ (begin- #,@e-...) (⇒ : τ)
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(⇒ ep (#,@ep-effs))
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(⇒ f (#,@f-effs))
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(⇒ s (#,@s-effs))]])
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@ -1,28 +1,14 @@
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#lang turnstile
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(provide (all-defined-out)
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(for-syntax (all-defined-out)))
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(provide (for-syntax get-effect
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effect-free?
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pure?
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all-pure?))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Effect Checking
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; for looking at the "effects"
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(begin-for-syntax
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(define-syntax ~effs
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(pattern-expander
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(syntax-parser
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[(_ eff:id ...)
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#:with tmp (generate-temporary 'effss)
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#'(~and tmp
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(~parse (eff ...) (stx-or #'tmp #'())))])))
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(define (stx-truth? a)
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(and a (not (and (syntax? a) (false? (syntax-e a))))))
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(define (stx-or a b)
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(cond [(stx-truth? a) a]
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[else b])))
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;; DesugaredSyntax EffectName -> (Syntaxof Effect ...)
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(define-for-syntax (get-effect e- eff)
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(or (syntax-property e- eff) #'()))
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@ -1,489 +0,0 @@
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#lang turnstile
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(provide (for-syntax (all-defined-out)))
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(require "base-types.rkt")
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(require "user-ctors.rkt")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Simple Judgments on Types
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define-for-syntax (flat-type? τ)
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(syntax-parse τ
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[(~→ τ ...) #f]
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[(~Actor τ) #f]
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[_ #t]))
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;; Flattish-Type -> Bool
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(define-for-syntax (finite? t)
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(syntax-parse t
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[~★/t #f]
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[(~U* τ:type ...)
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(stx-andmap finite? #'(τ ...))]
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[(~Tuple τ:type ...)
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(stx-andmap finite? #'(τ ...))]
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[(~constructor-type _ τ:type ...)
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(stx-andmap finite? #'(τ ...))]
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[(~Observe τ:type)
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(finite? #'τ)]
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[(~Inbound τ:type)
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(finite? #'τ)]
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[(~Outbound τ:type)
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(finite? #'τ)]
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;; TODO - this would introduce a circular dependency. I think Turnstile has a catch-all type
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;; pattern expander I could use here instead.
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#;[(~Set τ:type)
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(finite? #'τ)]
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[(~Message τ:type)
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(finite? #'τ)]
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[_ #t]))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Subtyping
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Type Type -> Bool
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(define-for-syntax (<: t1 t2)
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(syntax-parse #`(#,t1 #,t2)
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[((~U* τ1 ...) _)
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(stx-andmap (lambda (t) (<: t t2)) #'(τ1 ...))]
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[(_ (~U* τ2:type ...))
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(stx-ormap (lambda (t) (<: t1 t)) #'(τ2 ...))]
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[((~Actor τ1) (~Actor τ2))
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(and (<: #'τ1 #'τ2)
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(<: (∩ (strip-? #'τ1) #'τ2) #'τ1))]
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[((~AssertionSet τ1) (~AssertionSet τ2))
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(<: #'τ1 #'τ2)]
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#;[((~Set τ1) (~Set τ2))
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(<: #'τ1 #'τ2)]
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[((~Patch τ11 τ12) (~Patch τ21 τ22))
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(and (<: #'τ11 #'τ21)
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(<: #'τ12 #'τ22))]
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[((~Tuple τ1:type ...) (~Tuple τ2:type ...))
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#:when (stx-length=? #'(τ1 ...) #'(τ2 ...))
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(stx-andmap <: #'(τ1 ...) #'(τ2 ...))]
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[(_ ~★/t)
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(flat-type? t1)]
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[((~Observe τ1:type) (~Observe τ2:type))
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(<: #'τ1 #'τ2)]
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[((~Inbound τ1:type) (~Inbound τ2:type))
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(<: #'τ1 #'τ2)]
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[((~Outbound τ1:type) (~Outbound τ2:type))
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(<: #'τ1 #'τ2)]
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[((~Message τ1:type) (~Message τ2:type))
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(<: #'τ1 #'τ2)]
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[((~constructor-type t1 τ1:type ...) (~constructor-type t2 τ2:type ...))
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#:when (tags-equal? #'t1 #'t2)
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(and (stx-length=? #'(τ1 ...) #'(τ2 ...))
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(stx-andmap <: #'(τ1 ...) #'(τ2 ...)))]
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[((~→ τ-in1 ... τ-out1) (~→ τ-in2 ... τ-out2))
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#:when (stx-length=? #'(τ-in1 ...) #'(τ-in2 ...))
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(and (stx-andmap <: #'(τ-in2 ...) #'(τ-in1 ...))
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(<: #'τ-out1 #'τ-out2))]
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[(~Discard _)
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#t]
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;; TODO: clauses for Roles, and so on
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;; should probably put this first.
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[_ (type=? t1 t2)]))
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;; shortcuts for mapping
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(define-for-syntax ((<:l l) r)
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(<: l r))
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(define-for-syntax ((<:r r) l)
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(<: l r))
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;; Flat-Type Flat-Type -> Type
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(define-for-syntax (∩ t1 t2)
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(unless (and (flat-type? t1) (flat-type? t2))
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(error '∩ "expected two flat-types"))
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(syntax-parse #`(#,t1 #,t2)
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[(_ ~★/t)
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t1]
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[(~★/t _)
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t2]
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[(_ _)
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#:when (type=? t1 t2)
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t1]
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[((~U* τ1:type ...) _)
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((current-type-eval) #`(U #,@(stx-map (lambda (t) (∩ t t2)) #'(τ1 ...))))]
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[(_ (~U* τ2:type ...))
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((current-type-eval) #`(U #,@(stx-map (lambda (t) (∩ t1 t)) #'(τ2 ...))))]
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[((~AssertionSet τ1) (~AssertionSet τ2))
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#:with τ12 (∩ #'τ1 #'τ2)
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((current-type-eval) #'(AssertionSet τ12))]
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#;[((~Set τ1) (~Set τ2))
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#:with τ12 (∩ #'τ1 #'τ2)
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((current-type-eval) #'(Set τ12))]
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[((~Patch τ11 τ12) (~Patch τ21 τ22))
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#:with τ1 (∩ #'τ11 #'τ12)
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#:with τ2 (∩ #'τ21 #'τ22)
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((current-type-eval) #'(Patch τ1 τ2))]
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;; all of these fail-when/unless clauses are meant to cause this through to
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;; the last case and result in ⊥.
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;; Also, using <: is OK, even though <: refers to ∩, because <:'s use of ∩ is only
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;; in the Actor case.
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[((~Tuple τ1:type ...) (~Tuple τ2:type ...))
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#:fail-unless (stx-length=? #'(τ1 ...) #'(τ2 ...)) #f
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#:with (τ ...) (stx-map ∩ #'(τ1 ...) #'(τ2 ...))
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;; I don't think stx-ormap is part of the documented api of turnstile *shrug*
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#:fail-when (stx-ormap (lambda (t) (<: t ((current-type-eval) #'(U)))) #'(τ ...)) #f
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((current-type-eval) #'(Tuple τ ...))]
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[((~constructor-type tag1 τ1:type ...) (~constructor-type tag2 τ2:type ...))
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#:when (tags-equal? #'tag1 #'tag2)
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#:with (τ ...) (stx-map ∩ #'(τ1 ...) #'(τ2 ...))
|
||||
#:fail-when (stx-ormap (lambda (t) (<: t ((current-type-eval) #'(U)))) #'(τ ...)) #f
|
||||
(make-cons-type t1 #'(τ ...))]
|
||||
;; these three are just the same :(
|
||||
[((~Observe τ1:type) (~Observe τ2:type))
|
||||
#:with τ (∩ #'τ1 #'τ2)
|
||||
#:fail-when (<: #'τ ((current-type-eval) #'(U))) #f
|
||||
((current-type-eval) #'(Observe τ))]
|
||||
[((~Inbound τ1:type) (~Inbound τ2:type))
|
||||
#:with τ (∩ #'τ1 #'τ2)
|
||||
#:fail-when (<: #'τ ((current-type-eval) #'(U))) #f
|
||||
((current-type-eval) #'(Inbound τ))]
|
||||
[((~Outbound τ1:type) (~Outbound τ2:type))
|
||||
#:with τ (∩ #'τ1 #'τ2)
|
||||
#:fail-when (<: #'τ ((current-type-eval) #'(U))) #f
|
||||
((current-type-eval) #'(Outbound τ))]
|
||||
[((~Message τ1:type) (~Message τ2:type))
|
||||
#:with τ (∩ #'τ1 #'τ2)
|
||||
#:fail-when (<: #'τ ((current-type-eval) #'(U))) #f
|
||||
((current-type-eval) #'(Message τ))]
|
||||
[_ ((current-type-eval) #'(U))]))
|
||||
|
||||
;; Type Type -> Bool
|
||||
;; first type is the contents of the set/dataspace
|
||||
;; second type is the type of a pattern
|
||||
(define-for-syntax (project-safe? t1 t2)
|
||||
;; TODO - messages
|
||||
(syntax-parse #`(#,t1 #,t2)
|
||||
[(_ (~Bind τ2:type))
|
||||
(and (finite? t1) (<: t1 #'τ2))]
|
||||
[(_ ~Discard)
|
||||
#t]
|
||||
[(_ ~★/t)
|
||||
#t]
|
||||
[((~U* τ1:type ...) _)
|
||||
(stx-andmap (lambda (t) (project-safe? t t2)) #'(τ1 ...))]
|
||||
[(_ (~U* τ2:type ...))
|
||||
(stx-andmap (lambda (t) (project-safe? t1 t)) #'(τ2 ...))]
|
||||
[((~Tuple τ1:type ...) (~Tuple τ2:type ...))
|
||||
#:when (overlap? t1 t2)
|
||||
(stx-andmap project-safe? #'(τ1 ...) #'(τ2 ...))]
|
||||
[((~constructor-type _ τ1:type ...) (~constructor-type _ τ2:type ...))
|
||||
#:when (overlap? t1 t2)
|
||||
(stx-andmap project-safe? #'(τ1 ...) #'(τ2 ...))]
|
||||
[((~Observe τ1:type) (~Observe τ2:type))
|
||||
(project-safe? #'τ1 #'τ2)]
|
||||
[((~Inbound τ1:type) (~Inbound τ2:type))
|
||||
(project-safe? #'τ1 #'τ2)]
|
||||
[((~Outbound τ1:type) (~Outbound τ2:type))
|
||||
(project-safe? #'τ1 #'τ2)]
|
||||
[((~Message τ1:type) (~Message τ2:type))
|
||||
(project-safe? #'τ1 #'τ2)]
|
||||
[_ #t]))
|
||||
|
||||
;; AssertionType PatternType -> Bool
|
||||
;; Is it possible for things of these two types to match each other?
|
||||
;; Flattish-Type = Flat-Types + ★/t, Bind, Discard (assertion and pattern types)
|
||||
(define-for-syntax (overlap? t1 t2)
|
||||
(syntax-parse #`(#,t1 #,t2)
|
||||
[(~★/t _) #t]
|
||||
[(_ (~Bind _)) #t]
|
||||
[(_ ~Discard) #t]
|
||||
[(_ ~★/t) #t]
|
||||
[((~U* τ1:type ...) _)
|
||||
(stx-ormap (lambda (t) (overlap? t t2)) #'(τ1 ...))]
|
||||
[(_ (~U* τ2:type ...))
|
||||
(stx-ormap (lambda (t) (overlap? t1 t)) #'(τ2 ...))]
|
||||
#;[((~List _) (~List _))
|
||||
;; share the empty list
|
||||
#t]
|
||||
[((~Tuple τ1:type ...) (~Tuple τ2:type ...))
|
||||
(and (stx-length=? #'(τ1 ...) #'(τ2 ...))
|
||||
(stx-andmap overlap? #'(τ1 ...) #'(τ2 ...)))]
|
||||
[((~constructor-type t1 τ1:type ...) (~constructor-type t2 τ2:type ...))
|
||||
(and (tags-equal? #'t1 #'t2)
|
||||
(stx-andmap overlap? #'(τ1 ...) #'(τ2 ...)))]
|
||||
[((~Observe τ1:type) (~Observe τ2:type))
|
||||
(overlap? #'τ1 #'τ2)]
|
||||
[((~Inbound τ1:type) (~Inbound τ2:type))
|
||||
(overlap? #'τ1 #'τ2)]
|
||||
[((~Outbound τ1:type) (~Outbound τ2:type))
|
||||
(overlap? #'τ1 #'τ2)]
|
||||
[((~Message τ1:type) (~Message τ2:type))
|
||||
(overlap? #'τ1 #'τ2)]
|
||||
[_ (<: t1 t2)]))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Related Metafunctions
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-for-syntax (strip-? t)
|
||||
((current-type-eval)
|
||||
(syntax-parse t
|
||||
[(~U* τ ...) #`(U #,@(stx-map strip-? #'(τ ...)))]
|
||||
[~★/t #'★/t]
|
||||
;; since (Observe X) can match (Message X):
|
||||
;; doing this specifically for the intersection operation in the spawn rule, need to check other
|
||||
;; uses
|
||||
[(~Observe τ) #'(U τ (Message τ))]
|
||||
[_ #'(U*)])))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Role Checking
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
;; RoleType RoleType -> Bool
|
||||
;; Check that role r implements role spec (possibly does more)
|
||||
(define-for-syntax (role-implements? r spec)
|
||||
(syntax-parse #`(#,r #,spec)
|
||||
;; TODO: cases for unions, stop
|
||||
[((~Role (x:id) (~or (~Shares τ-s1) (~Sends τ-m1) (~Reacts τ-if1 τ-then1 ...)) ...)
|
||||
(~Role (y:id) (~or (~Shares τ-s2) (~Sends τ-m2) (~Reacts τ-if2 τ-then2 ...)) ...))
|
||||
#:when (free-identifier=? #'x #'y)
|
||||
(and
|
||||
;; for each assertion in the spec, there must be a suitable assertion in the actual
|
||||
;; TODO: this kinda ignores numerosity, can one assertion in r cover multiple assertions in spec?
|
||||
(for/and [(s2 (in-syntax #'(τ-s2 ...)))]
|
||||
(stx-ormap (<:l s2) #'(τ-s1 ...)))
|
||||
;; similar for messages
|
||||
(for/and [(m2 (in-syntax #'(τ-m2 ...)))]
|
||||
(stx-ormap (<:l m2) #'(τ-m1 ...)))
|
||||
(for/and [(s2 (in-syntax #'((τ-if2 (τ-then2 ...)) ...)))]
|
||||
(define/syntax-parse (τ-if2 (τ-then2 ...)) s2)
|
||||
(for/or [(s1 (in-syntax #'((τ-if1 (τ-then1 ...)) ...)))]
|
||||
(define/syntax-parse (τ-if1 (τ-then1 ...)) s1)
|
||||
;; the event descriptors need to line up
|
||||
(and (condition-covers? #'τ-if1 #'τ-if2)
|
||||
;; and for each specified response to the event, there needs to be a similar one in the
|
||||
;; the actual
|
||||
(stx-andmap (lambda (s) (stx-ormap (lambda (r) (role-implements? r s)) #'(τ-then1 ...)))
|
||||
#'(τ-then2 ...))))))]
|
||||
[((~Role (x:id) _ ...)
|
||||
(~Role (y:id) _ ...))
|
||||
(role-implements? (subst #'y #'x r) spec)]
|
||||
[((~Stop x:id τ1 ...)
|
||||
(~Stop y:id τ2 ...))
|
||||
(and
|
||||
(free-identifier=? #'x #'y)
|
||||
(for/and ([t2 (in-syntax #'(τ2 ...))])
|
||||
(for/or ([t1 (in-syntax #'(τ1 ...))])
|
||||
(role-implements? t1 t2))))]
|
||||
;; seems like this check might be in the wrong place
|
||||
[((~Sends τ-m1)
|
||||
(~Sends τ-m2))
|
||||
(<: #'τ-m1 #'τ-m2)]
|
||||
[((~Actor _)
|
||||
(~Actor _))
|
||||
;; spawned actor OK in specified dataspace
|
||||
(<: r spec)]))
|
||||
|
||||
;; it's ok for x to respond to strictly more events than y
|
||||
(define-for-syntax (condition-covers? x y)
|
||||
(or
|
||||
;; covers Start,Stop,Dataflow
|
||||
(type=? x y)
|
||||
(syntax-parse #`(#,x #,y)
|
||||
[((~Know τ1) (~Know τ2))
|
||||
(<: (pattern-matching-assertions #'τ2)
|
||||
(pattern-matching-assertions #'τ1))]
|
||||
[((~¬Know τ1) (~¬Know τ2))
|
||||
(<: (pattern-matching-assertions #'τ2)
|
||||
(pattern-matching-assertions #'τ1))]
|
||||
[((~Message τ1) (~Message τ2))
|
||||
(<: (pattern-matching-assertions #'τ2)
|
||||
(pattern-matching-assertions #'τ1))]
|
||||
[_ #f])))
|
||||
|
||||
;; PatternType -> Type
|
||||
(define-for-syntax (pattern-matching-assertions t)
|
||||
(syntax-parse t
|
||||
[(~Bind τ)
|
||||
#'τ]
|
||||
[~Discard
|
||||
((current-type-eval) #'★/t)]
|
||||
[(~U* τ ...)
|
||||
((current-type-eval) #`(U #,@(stx-map pattern-matching-assertions #'(τ ...))))]
|
||||
[(~Tuple τ ...)
|
||||
((current-type-eval) #`(Tuple #,@(stx-map pattern-matching-assertions #'(τ ...))))]
|
||||
[(~Observe τ)
|
||||
((current-type-eval) #`(Observe #,(pattern-matching-assertions #'τ)))]
|
||||
[(~Inbound τ)
|
||||
((current-type-eval) #`(Inbound #,(pattern-matching-assertions #'τ)))]
|
||||
[(~Outbound τ)
|
||||
((current-type-eval) #`(Outbound #,(pattern-matching-assertions #'τ)))]
|
||||
[(~Message τ)
|
||||
((current-type-eval) #`(Message #,(pattern-matching-assertions #'τ)))]
|
||||
[(~constructor-type _ τ ...)
|
||||
(make-cons-type t (stx-map pattern-matching-assertions #'(τ ...)))]
|
||||
[_ t]))
|
||||
|
||||
(module+ test
|
||||
(displayln "skipping commented for-syntax tests because it's slow")
|
||||
#;(begin-for-syntax
|
||||
;; TESTS
|
||||
(let ()
|
||||
;; utils
|
||||
(local-require syntax/parse/define
|
||||
rackunit)
|
||||
(define te (current-type-eval))
|
||||
(define-syntax-parser check-role-implements?
|
||||
[(_ r1 r2)
|
||||
(quasisyntax/loc this-syntax
|
||||
(check-true (role-implements? (te #'r1) (te #'r2))))])
|
||||
(define-syntax-parser check-role-not-implements?
|
||||
[(_ r1 r2)
|
||||
(quasisyntax/loc this-syntax
|
||||
(check-false (role-implements? (te #'r1) (te #'r2))))])
|
||||
;; Name Related
|
||||
(check-role-implements? (Role (x)) (Role (x)))
|
||||
(check-role-implements? (Role (x)) (Role (y)))
|
||||
;; Assertion Related
|
||||
(check-role-not-implements? (Role (x)) (Role (y) (Shares Int)))
|
||||
(check-role-implements? (Role (x) (Shares Int)) (Role (y)))
|
||||
(check-role-implements? (Role (x) (Shares Int)) (Role (y) (Shares Int)))
|
||||
(check-role-implements? (Role (x)
|
||||
(Shares Int)
|
||||
(Shares String))
|
||||
(Role (y)
|
||||
(Shares Int)
|
||||
(Shares String)))
|
||||
(check-role-implements? (Role (x)
|
||||
(Shares String)
|
||||
(Shares Int))
|
||||
(Role (y)
|
||||
(Shares Int)
|
||||
(Shares String)))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Shares Int))
|
||||
(Role (y)
|
||||
(Shares Int)
|
||||
(Shares String)))
|
||||
;; Reactions
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (Know Int)))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (Know Int))
|
||||
(Shares String))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (Know Int)
|
||||
(Role (y) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
(check-role-not-implements? (Role (x))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Reacts (Know String)))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
;; these two might need to be reconsidered
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Shares (Observe ★/t)))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Shares (Observe Int)))
|
||||
(Role (y)
|
||||
(Reacts (Know Int))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (Know Int)
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts (Know Int)
|
||||
(Role (y2) (Shares String)))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (¬Know Int)
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts (¬Know Int)
|
||||
(Role (y2) (Shares String)))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStart
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts OnStart
|
||||
(Role (y2) (Shares String)))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStop
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts OnStop
|
||||
(Role (y2) (Shares String)))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnDataflow
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts OnDataflow
|
||||
(Role (y2) (Shares String)))))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Reacts (Know Int)
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts (Know Int)
|
||||
(Role (y2) (Shares String))
|
||||
(Role (y3) (Shares Int)))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (Know Int)
|
||||
(Role (x3) (Shares Int))
|
||||
(Role (x2) (Shares String))))
|
||||
(Role (y)
|
||||
(Reacts (Know Int)
|
||||
(Role (y2) (Shares String))
|
||||
(Role (y3) (Shares Int)))))
|
||||
;; also not sure about this one
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts (Know Int)
|
||||
(Role (x2)
|
||||
(Shares String)
|
||||
(Shares Int))))
|
||||
(Role (y)
|
||||
(Reacts (Know Int)
|
||||
(Role (y2) (Shares String))
|
||||
(Role (y3) (Shares Int)))))
|
||||
;; Stop
|
||||
;; these all error when trying to create the Stop type :<
|
||||
#|
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStart (Stop x)))
|
||||
(Role (x)
|
||||
(Reacts OnStart (Stop x))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStart (Stop x)))
|
||||
(Role (y)
|
||||
(Reacts OnStart (Stop y))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStart (Stop x (Role (x2) (Shares Int)))))
|
||||
(Role (y)
|
||||
(Reacts OnStart (Stop y) (Role (y2) (Shares Int)))))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Reacts OnStart (Stop x (Role (x2) (Shares String)))))
|
||||
(Role (y)
|
||||
(Reacts OnStart (Stop y) (Role (y2) (Shares Int)))))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Reacts OnStart))
|
||||
(Role (y)
|
||||
(Reacts OnStart (Stop y) (Role (y2) (Shares Int)))))
|
||||
|#
|
||||
;; Spawning Actors
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStart (Actor Int)))
|
||||
(Role (x)
|
||||
(Reacts OnStart (Actor Int))))
|
||||
(check-role-implements? (Role (x)
|
||||
(Reacts OnStart (Actor Int)))
|
||||
(Role (x)
|
||||
(Reacts OnStart (Actor (U Int String)))))
|
||||
(check-role-not-implements? (Role (x)
|
||||
(Reacts OnStart (Actor Bool)))
|
||||
(Role (x)
|
||||
(Reacts OnStart (Actor (U Int String)))))
|
||||
)))
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide (for-syntax flat-type?)) #;(flat-type? Type)
|
||||
|
||||
(require "../base-types.rkt")
|
||||
|
||||
(define-for-syntax (flat-type? τ)
|
||||
(syntax-parse τ
|
||||
[(~→ τ ...) #f]
|
||||
[(~Actor τ) #f]
|
||||
[_ #t]))
|
||||
|
|
@ -1,94 +0,0 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide (all-defined-out)
|
||||
(for-syntax (all-defined-out)))
|
||||
|
||||
(require "base-types.rkt")
|
||||
(require "prim.rkt")
|
||||
(require "effects.rkt")
|
||||
(require (only-in "define-like-things.rkt" begin))
|
||||
|
||||
(require macrotypes/postfix-in)
|
||||
(require (postfix-in - racket/list))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Lists
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(define-type-constructor List #:arity = 1
|
||||
#:arg-variances (all-args-are covariant))
|
||||
|
||||
(define-typed-syntax (list e ...) ≫
|
||||
[⊢ e ≫ e- ⇒ τ] ...
|
||||
#:fail-unless (all-pure? #'(e- ...)) "expressions must be pure"
|
||||
-------------------
|
||||
[⊢ (list- e- ...) ⇒ (List (U τ ...))])
|
||||
|
||||
(define-typed-syntax (cons e1 e2) ≫
|
||||
[⊢ e1 ≫ e1- ⇒ τ1]
|
||||
#:fail-unless (pure? #'e1-) "expression must be pure"
|
||||
[⊢ e2 ≫ e2- ⇒ (~List τ2)]
|
||||
#:fail-unless (pure? #'e2-) "expression must be pure"
|
||||
#:with τ-l ((current-type-eval) #'(List (U τ1 τ2)))
|
||||
----------------------------------------
|
||||
[⊢ (cons- e1- e2-) ⇒ τ-l])
|
||||
|
||||
(define-typed-syntax (for/fold [acc:id e-acc]
|
||||
[x:id e-list]
|
||||
e-body ...+) ≫
|
||||
[⊢ e-list ≫ e-list- ⇒ (~List τ-l)]
|
||||
#:fail-unless (pure? #'e-list-) "expression must be pure"
|
||||
[⊢ e-acc ≫ e-acc- ⇒ τ-a]
|
||||
#:fail-unless (pure? #'e-acc-) "expression must be pure"
|
||||
[[x ≫ x- : τ-l] [acc ≫ acc- : τ-a] ⊢ (begin e-body ...) ≫ e-body- ⇐ τ-a]
|
||||
#:fail-unless (pure? #'e-body-) "body must be pure"
|
||||
-------------------------------------------------------
|
||||
[⊢ (for/fold- ([acc- e-acc-])
|
||||
([x- (in-list- e-list-)])
|
||||
e-body-)
|
||||
⇒ τ-a])
|
||||
|
||||
(define-typed-syntax (for ([x:id e-list] ...)
|
||||
e-body ...+) ≫
|
||||
[⊢ e-list ≫ e-list- ⇒ (~List τ-l)] ...
|
||||
#:fail-unless (all-pure? #'(e-list- ...)) "expressions must be pure"
|
||||
[[x ≫ x- : τ-l] ... ⊢ (begin e-body ...) ≫ e-body- (⇒ : τ-b)
|
||||
(⇒ ep (~effs eps ...))
|
||||
(⇒ f (~effs fs ...))
|
||||
(⇒ s (~effs ss ...))]
|
||||
-------------------------------------------------------
|
||||
[⊢ (for- ([x- (in-list- e-list-)] ...)
|
||||
e-body-) (⇒ : ★/t)
|
||||
(⇒ ep (eps ...))
|
||||
(⇒ f (fs ...))
|
||||
(⇒ s (ss ...))])
|
||||
|
||||
(define-typed-syntax (empty? e) ≫
|
||||
[⊢ e ≫ e- ⇒ (~List _)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
-----------------------
|
||||
[⊢ (empty?- e-) ⇒ Bool])
|
||||
|
||||
(define-typed-syntax (first e) ≫
|
||||
[⊢ e ≫ e- ⇒ (~List τ)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
-----------------------
|
||||
[⊢ (first- e-) ⇒ τ])
|
||||
|
||||
(define-typed-syntax (rest e) ≫
|
||||
[⊢ e ≫ e- ⇒ (~List τ)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
-----------------------
|
||||
[⊢ (rest- e-) ⇒ (List τ)])
|
||||
|
||||
(define-typed-syntax (member? e l) ≫
|
||||
[⊢ e ≫ e- ⇒ τe]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
[⊢ l ≫ l- ⇒ (~List τl)]
|
||||
#:fail-unless (pure? #'l-) "expression must be pure"
|
||||
#:fail-unless ((current-typecheck-relation) #'τe #'τl) "incompatible list"
|
||||
----------------------------------------
|
||||
[⊢ (member?- e- l-) ⇒ Bool])
|
||||
|
||||
(define- (member?- v l)
|
||||
(and- (member- v l) #t))
|
||||
|
|
@ -5,10 +5,7 @@
|
|||
|
||||
(require "base-types.rkt"
|
||||
"effects.rkt"
|
||||
"judgments.rkt")
|
||||
|
||||
(require macrotypes/postfix-in)
|
||||
(require (rename-in racket/math [exact-truncate exact-truncate-]))
|
||||
"judgments/basic.rkt")
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Basic Values and Their Types
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -1,117 +0,0 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide (all-defined-out)
|
||||
(for-syntax (all-defined-out)))
|
||||
|
||||
(require "effects.rkt")
|
||||
(require "base-types.rkt")
|
||||
(require "prim.rkt")
|
||||
(require "list.rkt")
|
||||
(require (only-in "judgments.rkt" ∩))
|
||||
|
||||
(require macrotypes/postfix-in)
|
||||
(require (postfix-in - racket/set))
|
||||
|
||||
(module+ test
|
||||
(require turnstile/rackunit-typechecking))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Sets
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
(define-type-constructor Set #:arity = 1
|
||||
#:arg-variances (all-args-are covariant))
|
||||
|
||||
(define-typed-syntax (set e ...) ≫
|
||||
[⊢ e ≫ e- ⇒ τ] ...
|
||||
#:fail-unless (all-pure? #'(e- ...)) "expressions must be pure"
|
||||
---------------
|
||||
[⊢ (set- e- ...) ⇒ (Set (U τ ...))])
|
||||
|
||||
(define-typed-syntax (set-count e) ≫
|
||||
[⊢ e ≫ e- ⇒ (~Set _)]
|
||||
#:fail-unless (pure? #'e-) "expression must be pure"
|
||||
----------------------
|
||||
[⊢ (set-count- e-) ⇒ Int])
|
||||
|
||||
(define-typed-syntax (set-add st v) ≫
|
||||
[⊢ st ≫ st- ⇒ (~Set τs)]
|
||||
#:fail-unless (pure? #'st-) "expression must be pure"
|
||||
[⊢ v ≫ v- ⇒ τv]
|
||||
#:fail-unless (pure? #'v-) "expression must be pure"
|
||||
-------------------------
|
||||
[⊢ (set-add- st- v-) ⇒ (Set (U τs τv))])
|
||||
|
||||
(define-typed-syntax (set-remove st v) ≫
|
||||
[⊢ st ≫ st- ⇒ (~Set τs)]
|
||||
#:fail-unless (pure? #'st-) "expression must be pure"
|
||||
[⊢ v ≫ v- ⇐ τs]
|
||||
#:fail-unless (pure? #'v-) "expression must be pure"
|
||||
-------------------------
|
||||
[⊢ (set-remove- st- v-) ⇒ (Set τs)])
|
||||
|
||||
(define-typed-syntax (set-member? st v) ≫
|
||||
[⊢ st ≫ st- ⇒ (~Set τs)]
|
||||
#:fail-unless (pure? #'st-) "expression must be pure"
|
||||
[⊢ v ≫ v- ⇒ τv]
|
||||
#:fail-unless (pure? #'v-) "expression must be pure"
|
||||
#:fail-unless ((current-typecheck-relation) #'τv #'τs)
|
||||
"type mismatch"
|
||||
-------------------------------------
|
||||
[⊢ (set-member?- st- v-) ⇒ Bool])
|
||||
|
||||
(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"
|
||||
-------------------------------------
|
||||
[⊢ (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 ((current-type-eval) #'(U τ-st ...)))
|
||||
-------------------------------------
|
||||
[⊢ (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"
|
||||
-------------------------------------
|
||||
[⊢ (set-subtract- st0- st- ...) ⇒ (Set τ-st0)])
|
||||
|
||||
(define-typed-syntax (list->set l) ≫
|
||||
[⊢ l ≫ l- ⇒ (~List τ)]
|
||||
#:fail-unless (pure? #'l-) "expression must be pure"
|
||||
-----------------------
|
||||
[⊢ (list->set- l-) ⇒ (Set τ)])
|
||||
|
||||
(define-typed-syntax (set->list s) ≫
|
||||
[⊢ s ≫ s- ⇒ (~Set τ)]
|
||||
#:fail-unless (pure? #'s-) "expression must be pure"
|
||||
-----------------------
|
||||
[⊢ (set->list- s-) ⇒ (List τ)])
|
||||
|
||||
(module+ test
|
||||
(check-type (set 1 2 3)
|
||||
: (Set Int)
|
||||
-> (set- 2 3 1))
|
||||
(check-type (set 1 "hello" 3)
|
||||
: (Set (U Int String))
|
||||
-> (set- "hello" 3 1))
|
||||
(check-type (set-count (set 1 "hello" 3))
|
||||
: Int
|
||||
-> 3)
|
||||
(check-type (set-union (set 1 2 3) (set "hello" "world"))
|
||||
: (Set (U Int String))
|
||||
-> (set- 1 2 3 "hello" "world"))
|
||||
(check-type (set-intersect (set 1 2 3) (set "hello" "world"))
|
||||
: (Set ⊥)
|
||||
-> (set-))
|
||||
(check-type (set-intersect (set 1 "hello" 3) (set #t "world" #f "hello"))
|
||||
: (Set String)
|
||||
-> (set- "hello")))
|
||||
|
|
@ -1,130 +0,0 @@
|
|||
#lang turnstile
|
||||
|
||||
(provide (all-defined-out)
|
||||
(for-syntax (all-defined-out)))
|
||||
|
||||
(require "base-types.rkt")
|
||||
(require "effects.rkt")
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; User Defined Types, aka Constructors
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
(begin-for-syntax
|
||||
(define-splicing-syntax-class type-constructor-decl
|
||||
(pattern (~seq #:type-constructor TypeCons:id))
|
||||
(pattern (~seq) #:attr TypeCons #f))
|
||||
|
||||
(struct user-ctor (typed-ctor untyped-ctor)
|
||||
#:property prop:procedure
|
||||
(lambda (v stx)
|
||||
(define transformer (user-ctor-typed-ctor v))
|
||||
(syntax-parse stx
|
||||
[(_ e ...)
|
||||
#`(#,transformer e ...)]))))
|
||||
|
||||
(define-syntax (define-constructor* stx)
|
||||
(syntax-parse stx
|
||||
#:datum-literals (:)
|
||||
[(_ (Cons:id : TyCons:id slot:id ...) clause ...)
|
||||
#'(define-constructor (Cons slot ...)
|
||||
#:type-constructor TyCons
|
||||
clause ...)]))
|
||||
|
||||
(define-syntax (define-constructor stx)
|
||||
(syntax-parse stx
|
||||
[(_ (Cons:id slot:id ...)
|
||||
ty-cons:type-constructor-decl
|
||||
(~seq #:with
|
||||
Alias AliasBody) ...)
|
||||
#:with TypeCons (or (attribute ty-cons.TypeCons) (format-id stx "~a/t" (syntax-e #'Cons)))
|
||||
#:with MakeTypeCons (format-id #'TypeCons "make-~a" #'TypeCons)
|
||||
#:with GetTypeParams (format-id #'TypeCons "get-~a-type-params" #'TypeCons)
|
||||
#:with TypeConsExpander (format-id #'TypeCons "~~~a" #'TypeCons)
|
||||
#:with TypeConsExtraInfo (format-id #'TypeCons "~a-extra-info" #'TypeCons)
|
||||
#:with (StructName Cons- type-tag) (generate-temporaries #'(Cons Cons Cons))
|
||||
(define arity (stx-length #'(slot ...)))
|
||||
#`(begin-
|
||||
(struct- StructName (slot ...) #:reflection-name 'Cons #:transparent)
|
||||
(define-syntax (TypeConsExtraInfo stx)
|
||||
(syntax-parse stx
|
||||
[(_ X (... ...)) #'('type-tag 'MakeTypeCons 'GetTypeParams)]))
|
||||
(define-type-constructor TypeCons
|
||||
#:arity = #,arity
|
||||
#:extra-info 'TypeConsExtraInfo)
|
||||
(define-syntax (MakeTypeCons stx)
|
||||
(syntax-parse stx
|
||||
[(_ t (... ...))
|
||||
#:fail-unless (= #,arity (stx-length #'(t (... ...)))) "arity mismatch"
|
||||
#'(TypeCons t (... ...))]))
|
||||
(define-syntax (GetTypeParams stx)
|
||||
(syntax-parse stx
|
||||
[(_ (TypeConsExpander t (... ...)))
|
||||
#'(t (... ...))]))
|
||||
(define-syntax Cons
|
||||
(user-ctor #'Cons- #'StructName))
|
||||
(define-typed-syntax (Cons- e (... ...)) ≫
|
||||
#:fail-unless (= #,arity (stx-length #'(e (... ...)))) "arity mismatch"
|
||||
[⊢ e ≫ e- (⇒ : τ)] (... ...)
|
||||
#:fail-unless (all-pure? #'(e- (... ...))) "expressions must be pure"
|
||||
----------------------
|
||||
[⊢ (#%app- StructName e- (... ...)) (⇒ : (TypeCons τ (... ...)))])
|
||||
(define-type-alias Alias AliasBody) ...)]))
|
||||
|
||||
(begin-for-syntax
|
||||
(define-syntax ~constructor-extra-info
|
||||
(pattern-expander
|
||||
(syntax-parser
|
||||
[(_ tag mk get)
|
||||
#'(_ (_ tag) (_ mk) (_ get))])))
|
||||
|
||||
(define-syntax ~constructor-type
|
||||
(pattern-expander
|
||||
(syntax-parser
|
||||
[(_ tag . rst)
|
||||
#'(~and it
|
||||
(~fail #:unless (user-defined-type? #'it))
|
||||
(~parse tag (get-type-tag #'it))
|
||||
(~Any _ . rst))])))
|
||||
|
||||
(define-syntax ~constructor-exp
|
||||
(pattern-expander
|
||||
(syntax-parser
|
||||
[(_ cons . rst)
|
||||
#'(~and (cons . rst)
|
||||
(~fail #:unless (ctor-id? #'cons)))])))
|
||||
|
||||
(define (inspect t)
|
||||
(syntax-parse t
|
||||
[(~constructor-type tag t ...)
|
||||
(list (syntax-e #'tag) (stx-map type->str #'(t ...)))]))
|
||||
|
||||
(define (tags-equal? t1 t2)
|
||||
(equal? (syntax-e t1) (syntax-e t2)))
|
||||
|
||||
(define (user-defined-type? t)
|
||||
(get-extra-info ((current-type-eval) t)))
|
||||
|
||||
(define (get-type-tag t)
|
||||
(syntax-parse (get-extra-info t)
|
||||
[(~constructor-extra-info tag _ _)
|
||||
(syntax-e #'tag)]))
|
||||
|
||||
(define (get-type-args t)
|
||||
(syntax-parse (get-extra-info t)
|
||||
[(~constructor-extra-info _ _ get)
|
||||
(define f (syntax-local-value #'get))
|
||||
(syntax->list (f #`(get #,t)))]))
|
||||
|
||||
(define (make-cons-type t args)
|
||||
(syntax-parse (get-extra-info t)
|
||||
[(~constructor-extra-info _ mk _)
|
||||
(define f (syntax-local-value #'mk))
|
||||
((current-type-eval) (f #`(mk #,@args)))]))
|
||||
|
||||
(define (ctor-id? stx)
|
||||
(and (identifier? stx)
|
||||
(user-ctor? (syntax-local-value stx (const #f)))))
|
||||
|
||||
(define (untyped-ctor stx)
|
||||
(user-ctor-untyped-ctor (syntax-local-value stx (const #f)))))
|
||||
Loading…
Reference in New Issue