improved handling of source locations
svn: r15132
This commit is contained in:
Robby Findler
parent
3b401288f7
commit
1450b89b75
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@ -92,6 +92,7 @@
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(render-metafunction Name))
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"metafunction-Name-vertical.png")
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;; makes sure that there is no overlap inside or across metafunction calls
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;; or when there are unquotes involved
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(define-metafunction lang
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@ -457,7 +457,12 @@
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(set! current-line line)
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(set! current-column col))]
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[else
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(error 'eject "lines going backwards")])
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(error 'eject
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"lines going backwards (current-line ~s line ~s atom ~s tokens ~s)"
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current-line
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line
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atom
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tokens)])
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(when (< current-column col)
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(let ([space-span (- col current-column)])
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(set! tokens (cons (make-blank-space-token unquoted?
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96
collects/redex/private/loc-wrapper-ct.ss
Normal file
96
collects/redex/private/loc-wrapper-ct.ss
Normal file
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@ -0,0 +1,96 @@
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#lang scheme/base
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(require (for-template scheme/base)
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(for-template "loc-wrapper-rt.ss")
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"term-fn.ss")
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(provide to-lw/proc to-lw/uq/proc)
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(define (process-arg stx quote-depth)
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(define quoted? (quote-depth . > . 0))
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(define-values (op cl)
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(if (syntax? stx)
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(case (syntax-property stx 'paren-shape)
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[(#\{) (values "{" "}")]
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[(#\[) (values "[" "]")]
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[else (values "(" ")")])
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(values #f #f)))
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(define (reader-shorthand arg qd-delta mrk)
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#`(init-loc-wrapper
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(list (init-loc-wrapper #,mrk
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)
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'spring
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#,(process-arg arg (+ quote-depth qd-delta)))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?))
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(define (handle-sequence qd-delta)
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#`(init-loc-wrapper
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(list (init-loc-wrapper #,op #,(syntax-line stx) #,(syntax-column stx) #,quoted?)
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#,@(map (λ (x) (process-arg x (+ qd-delta quote-depth))) (syntax->list stx))
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(init-loc-wrapper #,cl #f #f #,quoted?))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?))
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(syntax-case* stx (name unquote quote unquote-splicing term) (λ (x y) (eq? (syntax-e x) (syntax-e y)))
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['a (reader-shorthand #'a +1 (if (= quote-depth 0) "" "'"))]
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[,a (reader-shorthand #'a -1 (if (= quote-depth 1) "" ","))]
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[,@a (reader-shorthand #'a -1 (if (= quote-depth 1) "" ",@"))]
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[(term a)
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(if (= quote-depth 0)
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#`(init-loc-wrapper
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(list (init-loc-wrapper "" #,(syntax-line stx) #,(syntax-column stx) #,quoted?)
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'spring
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#,(process-arg (cadr (syntax->list stx)) (+ quote-depth 1)))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)
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(handle-sequence +1))]
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[(a ...)
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(handle-sequence 0)]
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[(a b ... . c)
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#`(init-loc-wrapper
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(list (init-loc-wrapper #,op #,(syntax-line stx) #,(syntax-column stx) #,quoted?)
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#,@(map (λ (x) (process-arg x quote-depth)) (syntax->list (syntax (a b ...))))
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(init-loc-wrapper #," . " #f #f #,quoted?)
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#,(process-arg #'c quote-depth)
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(init-loc-wrapper #,cl #f #f #,quoted?))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)]
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[x
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(and (identifier? #'x)
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(term-fn? (syntax-local-value #'x (λ () #f))))
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#`(make-lw
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'#,(syntax-e #'x)
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#,(syntax-line stx)
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#f
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#,(syntax-column stx)
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#f
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#f
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#t)]
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[x
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(identifier? #'x)
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#`(init-loc-wrapper
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'#,(syntax-e #'x)
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)]
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[x
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#`(init-loc-wrapper
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#,(let ([base (syntax-e #'x)])
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(if (string? base)
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#`(rewrite-quotes #,(format "~s" base))
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(format "~s" (syntax-e #'x))))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)]))
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(define (to-lw/proc stx)
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(syntax-case stx ()
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[(_ stx)
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#`(add-spans #,(process-arg #'stx 1))]))
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(define (to-lw/uq/proc stx)
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(syntax-case stx ()
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[(_ stx)
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#`(add-spans #,(process-arg #'stx 0))]))
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96
collects/redex/private/loc-wrapper-rt.ss
Normal file
96
collects/redex/private/loc-wrapper-rt.ss
Normal file
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@ -0,0 +1,96 @@
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#lang scheme/base
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;; this is the runtime code for loc-wrapper-ct.ss.
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;; it isn't really its own module, but separated
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;; out in order to get the phases right.
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(provide (all-defined-out))
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(require (lib "etc.ss")
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"term.ss")
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(define (init-loc-wrapper e line column quoted?)
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(make-lw e line #f column #f (not quoted?) #f))
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;; lw = (union 'spring loc-wrapper)
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;; e : (union string symbol #f (listof lw))
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;; line, line-span, column, column-span : number
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(define-struct lw (e line line-span column column-span unq? metafunction?)
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#:mutable
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#:inspector (make-inspector))
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;; build-lw is designed for external consumption
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(define (build-lw e line line-span column column-span)
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(make-lw e line line-span column column-span #f #f))
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(define curly-quotes-for-strings (make-parameter #t))
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(define (rewrite-quotes s)
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(if (curly-quotes-for-strings)
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(string-append "“"
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(substring s 1 (- (string-length s) 1))
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"”")
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s))
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(define (add-spans lw)
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(define line-seen-so-far 0)
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(define (add-spans/lw lw line col)
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(cond
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[(eq? lw 'spring) (values line col col)]
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[else
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(let ([start-line (or (lw-line lw) line line-seen-so-far)]
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[start-column (or (lw-column lw) col 0)])
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(set! line-seen-so-far (max line-seen-so-far start-line))
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(unless (lw-line lw) (set-lw-line! lw line-seen-so-far))
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(unless (lw-column lw) (set-lw-column! lw start-column))
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(let-values ([(last-line first-column last-column)
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(add-spans/obj (lw-e lw) start-line start-column)])
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(set-lw-line-span! lw (- last-line start-line))
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(let ([new-col (min/f (lw-column lw)
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first-column)])
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(set-lw-column! lw new-col)
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(set-lw-column-span! lw (- last-column new-col)))
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(values last-line first-column last-column)))]))
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(define (add-spans/obj e line col)
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(cond
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[(string? e)
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(values line col (+ col (string-length e)))]
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[(symbol? e)
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(values line col (+ col (string-length (symbol->string e))))]
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[(not e) (values line col col)]
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[else
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(let loop ([lws e]
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[line line]
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[first-column col]
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[last-column col]
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[current-col col])
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(cond
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[(null? lws) (values line first-column last-column)]
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[else
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(let-values ([(last-line inner-first-column inner-last-column)
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(add-spans/lw (car lws) line current-col)])
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(if (= last-line line)
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(loop (cdr lws)
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last-line
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(min inner-first-column first-column)
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(max inner-last-column last-column)
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inner-last-column)
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(loop (cdr lws)
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last-line
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(min inner-first-column first-column)
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inner-last-column
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inner-last-column)))]))]))
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(add-spans/lw lw #f #f)
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lw)
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(define (min/f a b)
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(cond
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[(and a b) (min a b)]
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[a a]
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[b b]
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[else 0]))
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@ -1,181 +1,12 @@
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#lang scheme/base
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(require (lib "etc.ss")
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"term.ss"
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scheme/contract)
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(require (for-syntax "term-fn.ss" scheme/base))
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(require scheme/contract
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(for-syntax scheme/base)
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(for-syntax "loc-wrapper-ct.ss")
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"loc-wrapper-rt.ss")
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(define (init-loc-wrapper e line column quoted?)
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(make-lw e line #f column #f (not quoted?) #f))
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;; lw = (union 'spring loc-wrapper)
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;; e : (union string symbol #f (listof lw))
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;; line, line-span, column, column-span : number
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(define-struct lw (e line line-span column column-span unq? metafunction?)
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#:mutable
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#:inspector (make-inspector))
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;; build-lw is designed for external consumption
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(define (build-lw e line line-span column column-span)
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(make-lw e line line-span column column-span #f #f))
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(define curly-quotes-for-strings (make-parameter #t))
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(define (rewrite-quotes s)
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(if (curly-quotes-for-strings)
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(string-append "“"
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(substring s 1 (- (string-length s) 1))
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"”")
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s))
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(define-syntax-set (to-lw to-lw/uq)
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(define (process-arg stx quote-depth)
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(define quoted? (quote-depth . > . 0))
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(define-values (op cl)
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(if (syntax? stx)
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(case (syntax-property stx 'paren-shape)
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[(#\{) (values "{" "}")]
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[(#\[) (values "[" "]")]
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[else (values "(" ")")])
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(values #f #f)))
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(define (reader-shorthand arg qd-delta mrk)
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#`(init-loc-wrapper
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(list (init-loc-wrapper #,mrk
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)
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'spring
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#,(process-arg arg (+ quote-depth qd-delta)))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?))
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(define (handle-sequence qd-delta)
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#`(init-loc-wrapper
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(list (init-loc-wrapper #,op #,(syntax-line stx) #,(syntax-column stx) #,quoted?)
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#,@(map (λ (x) (process-arg x (+ qd-delta quote-depth))) (syntax->list stx))
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(init-loc-wrapper #,cl #f #f #,quoted?))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?))
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(syntax-case* stx (name unquote quote unquote-splicing term) (λ (x y) (eq? (syntax-e x) (syntax-e y)))
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['a (reader-shorthand #'a +1 (if (= quote-depth 0) "" "'"))]
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[,a (reader-shorthand #'a -1 (if (= quote-depth 1) "" ","))]
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[,@a (reader-shorthand #'a -1 (if (= quote-depth 1) "" ",@"))]
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[(term a)
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(if (= quote-depth 0)
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#`(init-loc-wrapper
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(list (init-loc-wrapper "" #,(syntax-line stx) #,(syntax-column stx) #,quoted?)
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'spring
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#,(process-arg (cadr (syntax->list stx)) (+ quote-depth 1)))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)
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(handle-sequence +1))]
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[(a ...)
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(handle-sequence 0)]
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[(a b ... . c)
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#`(init-loc-wrapper
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(list (init-loc-wrapper #,op #,(syntax-line stx) #,(syntax-column stx) #,quoted?)
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#,@(map (λ (x) (process-arg x quote-depth)) (syntax->list (syntax (a b ...))))
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(init-loc-wrapper #," . " #f #f #,quoted?)
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#,(process-arg #'c quote-depth)
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(init-loc-wrapper #,cl #f #f #,quoted?))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)]
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[x
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(and (identifier? #'x)
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(term-fn? (syntax-local-value #'x (λ () #f))))
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#`(make-lw
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'#,(syntax-e #'x)
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#,(syntax-line stx)
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#f
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#,(syntax-column stx)
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#f
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#f
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#t)]
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[x
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(identifier? #'x)
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#`(init-loc-wrapper
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'#,(syntax-e #'x)
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)]
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[x
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#`(init-loc-wrapper
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#,(let ([base (syntax-e #'x)])
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(if (string? base)
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#`(rewrite-quotes #,(format "~s" base))
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(format "~s" (syntax-e #'x))))
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#,(syntax-line stx)
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#,(syntax-column stx)
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#,quoted?)]))
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(define (to-lw/proc stx)
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(syntax-case stx ()
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[(_ stx)
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#`(add-spans #,(process-arg #'stx 1))]))
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(define (to-lw/uq/proc stx)
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(syntax-case stx ()
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[(_ stx)
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#`(add-spans #,(process-arg #'stx 0))])))
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(define (add-spans lw)
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(define (add-spans/lw lw line col)
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(cond
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[(eq? lw 'spring) (values line col col)]
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[else
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(let ([start-line (or (lw-line lw) line)]
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[start-column (or (lw-column lw) col)])
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(when (and start-line ;; if we don't have src loc info, just give up.
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start-column)
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(let-values ([(last-line first-column last-column)
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(add-spans/obj (lw-e lw) start-line start-column)])
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(unless (lw-line lw)
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(set-lw-line! lw line))
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(set-lw-line-span! lw (- last-line start-line))
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(unless (lw-column lw)
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(set-lw-column! lw col))
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(let ([new-col (min (lw-column lw)
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first-column)])
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(set-lw-column! lw new-col)
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(set-lw-column-span! lw (- last-column new-col)))
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(values last-line first-column last-column))))]))
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(define (add-spans/obj e line col)
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(cond
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[(string? e)
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(values line col (+ col (string-length e)))]
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[(symbol? e)
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(values line col (+ col (string-length (symbol->string e))))]
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[(not e) (values line col col)]
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[else
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(let loop ([lws e]
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[line line]
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[first-column col]
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[last-column col]
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[current-col col])
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(cond
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[(null? lws) (values line first-column last-column)]
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[else
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(let-values ([(last-line inner-first-column inner-last-column)
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(add-spans/lw (car lws) line current-col)])
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(if (= last-line line)
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(loop (cdr lws)
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last-line
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(min inner-first-column first-column)
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(max inner-last-column last-column)
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inner-last-column)
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(loop (cdr lws)
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last-line
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(min inner-first-column first-column)
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inner-last-column
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inner-last-column)))]))]))
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(add-spans/lw lw #f #f)
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lw)
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(define-syntax (to-lw stx) (to-lw/proc stx))
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(define-syntax (to-lw/uq stx) (to-lw/uq/proc stx))
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(define pnum (and/c number? (or/c zero? positive?)))
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|
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@ -580,9 +580,10 @@
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[column (+ (lw-column fst)
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(lw-column-span fst))]
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[column-span
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(- (lw-column snd)
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(+ (lw-column fst)
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(lw-column-span fst)))])
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(max (- (lw-column snd)
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(+ (lw-column fst)
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(lw-column-span fst)))
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0)])
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(build-lw (make-bar) line line-span column column-span))]
|
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[else
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(build-lw
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|
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|
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@ -20,6 +20,46 @@
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(define (language-nts lang)
|
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(hash-map (compiled-lang-ht lang) (λ (x y) x)))
|
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|
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#;
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(define-for-syntax (prune-syntax stx)
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(datum->syntax
|
||||
(identifier-prune-lexical-context #'whatever '())
|
||||
(let loop ([stx stx])
|
||||
(syntax-case stx (quote)
|
||||
[(quote x) (list (quote-syntax/prune quote)
|
||||
(syntax->datum #'x))]
|
||||
[x
|
||||
(cond
|
||||
[(identifier? stx) (identifier-prune-lexical-context stx)]
|
||||
[(syntax? stx)
|
||||
(datum->syntax (identifier-prune-lexical-context
|
||||
#'whatever
|
||||
'(#%app))
|
||||
(syntax-e stx)
|
||||
stx)]
|
||||
[(pair? stx)
|
||||
(cons (loop (car stx))
|
||||
(loop (cdr stx)))]
|
||||
[else stx])]))))
|
||||
|
||||
(define-for-syntax (prune-syntax stx)
|
||||
stx
|
||||
|
||||
#;
|
||||
(datum->syntax
|
||||
(identifier-prune-lexical-context #'whatever '(#%app #%datum))
|
||||
(let loop ([stx stx])
|
||||
(syntax-case stx (quote)
|
||||
[(quote x) (list (quote-syntax/prune quote)
|
||||
(syntax->datum #'x))]
|
||||
[(a . b) (cons (loop #'a) (loop #'b))]
|
||||
[x
|
||||
(identifier? #'x)
|
||||
(datum->syntax (identifier-prune-lexical-context #'x)
|
||||
(syntax-e #'x))]
|
||||
[() '()]
|
||||
[_ (syntax->datum stx)]))))
|
||||
|
||||
(define-syntax (term-match/single stx)
|
||||
(syntax-case stx ()
|
||||
[(_ lang [pattern rhs] ...)
|
||||
|
|
@ -243,22 +283,23 @@
|
|||
(syntax-case stx ()
|
||||
[(_ id orig-reduction-relation allow-zero-rules? lang . w/domain-args)
|
||||
(identifier? #'lang)
|
||||
(let-values ([(domain-pattern main-arrow args)
|
||||
(parse-keywords stx #'id #'w/domain-args)])
|
||||
(with-syntax ([(rules ...) (before-with args)]
|
||||
[(shortcuts ...) (after-with args)])
|
||||
(with-syntax ([(lws ...) (map rule->lws (syntax->list #'(rules ...)))])
|
||||
(reduction-relation/helper
|
||||
stx
|
||||
(syntax-e #'id)
|
||||
#'orig-reduction-relation
|
||||
(syntax lang)
|
||||
(syntax->list (syntax (rules ...)))
|
||||
(syntax->list (syntax (shortcuts ...)))
|
||||
#'(list lws ...)
|
||||
(syntax-e #'allow-zero-rules?)
|
||||
domain-pattern
|
||||
main-arrow))))]
|
||||
(prune-syntax
|
||||
(let-values ([(domain-pattern main-arrow args)
|
||||
(parse-keywords stx #'id #'w/domain-args)])
|
||||
(with-syntax ([(rules ...) (before-with args)]
|
||||
[(shortcuts ...) (after-with args)])
|
||||
(with-syntax ([(lws ...) (map rule->lws (syntax->list #'(rules ...)))])
|
||||
(reduction-relation/helper
|
||||
stx
|
||||
(syntax-e #'id)
|
||||
#'orig-reduction-relation
|
||||
(syntax lang)
|
||||
(syntax->list (syntax (rules ...)))
|
||||
(syntax->list (syntax (shortcuts ...)))
|
||||
#'(list lws ...)
|
||||
(syntax-e #'allow-zero-rules?)
|
||||
domain-pattern
|
||||
main-arrow)))))]
|
||||
[(_ id orig-reduction-relation allow-zero-rules? lang args ...)
|
||||
(raise-syntax-error (syntax-e #'id)
|
||||
"expected an identifier for the language name"
|
||||
|
|
@ -983,146 +1024,147 @@
|
|||
(raise-syntax-error syn-error-name "expected an identifier in the language position" orig-stx #'lang))
|
||||
(when (null? (syntax-e #'rest))
|
||||
(raise-syntax-error syn-error-name "no clauses" orig-stx))
|
||||
(let-values ([(contract-name dom-ctcs codom-contract pats)
|
||||
(split-out-contract orig-stx syn-error-name #'rest)])
|
||||
(with-syntax ([(((original-names lhs-clauses ...) rhs stuff ...) ...) pats]
|
||||
[(lhs-for-lw ...)
|
||||
(with-syntax ([((lhs-for-lw _ _ ...) ...) pats])
|
||||
(map (λ (x) (datum->syntax #f (cdr (syntax-e x)) x))
|
||||
(syntax->list #'(lhs-for-lw ...))))])
|
||||
(with-syntax ([(lhs ...) #'((lhs-clauses ...) ...)]
|
||||
[name (let loop ([name (if contract-name
|
||||
contract-name
|
||||
(car (syntax->list #'(original-names ...))))]
|
||||
[names (if contract-name
|
||||
(syntax->list #'(original-names ...))
|
||||
(cdr (syntax->list #'(original-names ...))))])
|
||||
(cond
|
||||
[(null? names) name]
|
||||
[else
|
||||
(unless (eq? (syntax-e name) (syntax-e (car names)))
|
||||
(raise
|
||||
(make-exn:fail:syntax
|
||||
(if contract-name
|
||||
"define-metafunction: expected each clause and the contract to use the same name"
|
||||
"define-metafunction: expected each clause to use the same name")
|
||||
(current-continuation-marks)
|
||||
(list name
|
||||
(car names)))))
|
||||
(loop name (cdr names))]))])
|
||||
|
||||
(with-syntax ([(((tl-side-conds ...) ...)
|
||||
(tl-bindings ...)
|
||||
(tl-side-cond/binds ...))
|
||||
(parse-extras #'((stuff ...) ...))])
|
||||
(let ([lang-nts (language-id-nts #'lang 'define-metafunction)])
|
||||
(with-syntax ([(tl-withs ...) (map (λ (sc/b) (bind-withs syn-error-name '() sc/b #t))
|
||||
(syntax->list #'(tl-side-cond/binds ...)))])
|
||||
(with-syntax ([(side-conditions-rewritten ...)
|
||||
(map (λ (x) (rewrite-side-conditions/check-errs
|
||||
lang-nts
|
||||
'define-metafunction
|
||||
#t
|
||||
x))
|
||||
(syntax->list (syntax ((side-condition lhs tl-withs) ...))))]
|
||||
[dom-side-conditions-rewritten
|
||||
(and dom-ctcs
|
||||
(rewrite-side-conditions/check-errs
|
||||
lang-nts
|
||||
'define-metafunction
|
||||
#f
|
||||
dom-ctcs))]
|
||||
[codom-side-conditions-rewritten
|
||||
(rewrite-side-conditions/check-errs
|
||||
lang-nts
|
||||
'define-metafunction
|
||||
#f
|
||||
codom-contract)]
|
||||
[(rhs-fns ...)
|
||||
(map (λ (lhs rhs bindings)
|
||||
(let-values ([(names names/ellipses) (extract-names lang-nts 'define-metafunction #t lhs)])
|
||||
(with-syntax ([(names ...) names]
|
||||
[(names/ellipses ...) names/ellipses]
|
||||
[rhs rhs]
|
||||
[((tl-var tl-exp) ...) bindings])
|
||||
(syntax
|
||||
(λ (name bindings)
|
||||
(term-let-fn ((name name))
|
||||
(term-let ([names/ellipses (lookup-binding bindings 'names)] ...)
|
||||
(term-let ([tl-var (term tl-exp)] ...)
|
||||
(term rhs)))))))))
|
||||
(syntax->list (syntax (lhs ...)))
|
||||
(syntax->list (syntax (rhs ...)))
|
||||
(syntax->list (syntax (tl-bindings ...))))]
|
||||
[(name2 name-predicate) (generate-temporaries (syntax (name name)))]
|
||||
[((side-cond ...) ...)
|
||||
;; For generating a pict, separate out side conditions wrapping the LHS and at the top-level
|
||||
(map (lambda (lhs scs)
|
||||
(append
|
||||
(let loop ([lhs lhs])
|
||||
(syntax-case lhs (side-condition term)
|
||||
[(side-condition pat (term sc))
|
||||
(cons #'sc (loop #'pat))]
|
||||
[_else null]))
|
||||
scs))
|
||||
(syntax->list #'(lhs ...))
|
||||
(syntax->list #'((tl-side-conds ...) ...)))]
|
||||
[(((bind-id . bind-pat) ...) ...)
|
||||
;; Also for pict, extract pattern bindings
|
||||
(map extract-pattern-binds (syntax->list #'(lhs ...)))]
|
||||
[(((rhs-bind-id . rhs-bind-pat) ...) ...)
|
||||
;; Also for pict, extract pattern bindings
|
||||
(map extract-term-let-binds (syntax->list #'(rhs ...)))]
|
||||
[(((where-id where-pat) ...) ...)
|
||||
;; Also for pict, extract where bindings
|
||||
#'(tl-bindings ...)])
|
||||
(syntax-property
|
||||
#`(begin
|
||||
(define-values (name2 name-predicate)
|
||||
(let ([sc `(side-conditions-rewritten ...)]
|
||||
[dsc `dom-side-conditions-rewritten])
|
||||
(build-metafunction
|
||||
(prune-syntax
|
||||
(let-values ([(contract-name dom-ctcs codom-contract pats)
|
||||
(split-out-contract orig-stx syn-error-name #'rest)])
|
||||
(with-syntax ([(((original-names lhs-clauses ...) rhs stuff ...) ...) pats]
|
||||
[(lhs-for-lw ...)
|
||||
(with-syntax ([((lhs-for-lw _ _ ...) ...) pats])
|
||||
(map (λ (x) (datum->syntax #f (cdr (syntax-e x)) x))
|
||||
(syntax->list #'(lhs-for-lw ...))))])
|
||||
(with-syntax ([(lhs ...) #'((lhs-clauses ...) ...)]
|
||||
[name (let loop ([name (if contract-name
|
||||
contract-name
|
||||
(car (syntax->list #'(original-names ...))))]
|
||||
[names (if contract-name
|
||||
(syntax->list #'(original-names ...))
|
||||
(cdr (syntax->list #'(original-names ...))))])
|
||||
(cond
|
||||
[(null? names) name]
|
||||
[else
|
||||
(unless (eq? (syntax-e name) (syntax-e (car names)))
|
||||
(raise
|
||||
(make-exn:fail:syntax
|
||||
(if contract-name
|
||||
"define-metafunction: expected each clause and the contract to use the same name"
|
||||
"define-metafunction: expected each clause to use the same name")
|
||||
(current-continuation-marks)
|
||||
(list name
|
||||
(car names)))))
|
||||
(loop name (cdr names))]))])
|
||||
|
||||
(with-syntax ([(((tl-side-conds ...) ...)
|
||||
(tl-bindings ...)
|
||||
(tl-side-cond/binds ...))
|
||||
(parse-extras #'((stuff ...) ...))])
|
||||
(let ([lang-nts (language-id-nts #'lang 'define-metafunction)])
|
||||
(with-syntax ([(tl-withs ...) (map (λ (sc/b) (bind-withs syn-error-name '() sc/b #t))
|
||||
(syntax->list #'(tl-side-cond/binds ...)))])
|
||||
(with-syntax ([(side-conditions-rewritten ...)
|
||||
(map (λ (x) (rewrite-side-conditions/check-errs
|
||||
lang-nts
|
||||
'define-metafunction
|
||||
#t
|
||||
x))
|
||||
(syntax->list (syntax ((side-condition lhs tl-withs) ...))))]
|
||||
[dom-side-conditions-rewritten
|
||||
(and dom-ctcs
|
||||
(rewrite-side-conditions/check-errs
|
||||
lang-nts
|
||||
'define-metafunction
|
||||
#f
|
||||
dom-ctcs))]
|
||||
[codom-side-conditions-rewritten
|
||||
(rewrite-side-conditions/check-errs
|
||||
lang-nts
|
||||
'define-metafunction
|
||||
#f
|
||||
codom-contract)]
|
||||
[(rhs-fns ...)
|
||||
(map (λ (lhs rhs bindings)
|
||||
(let-values ([(names names/ellipses) (extract-names lang-nts 'define-metafunction #t lhs)])
|
||||
(with-syntax ([(names ...) names]
|
||||
[(names/ellipses ...) names/ellipses]
|
||||
[rhs rhs]
|
||||
[((tl-var tl-exp) ...) bindings])
|
||||
(syntax
|
||||
(λ (name bindings)
|
||||
(term-let-fn ((name name))
|
||||
(term-let ([names/ellipses (lookup-binding bindings 'names)] ...)
|
||||
(term-let ([tl-var (term tl-exp)] ...)
|
||||
(term rhs)))))))))
|
||||
(syntax->list (syntax (lhs ...)))
|
||||
(syntax->list (syntax (rhs ...)))
|
||||
(syntax->list (syntax (tl-bindings ...))))]
|
||||
[(name2 name-predicate) (generate-temporaries (syntax (name name)))]
|
||||
[((side-cond ...) ...)
|
||||
;; For generating a pict, separate out side conditions wrapping the LHS and at the top-level
|
||||
(map (lambda (lhs scs)
|
||||
(append
|
||||
(let loop ([lhs lhs])
|
||||
(syntax-case lhs (side-condition term)
|
||||
[(side-condition pat (term sc))
|
||||
(cons #'sc (loop #'pat))]
|
||||
[_else null]))
|
||||
scs))
|
||||
(syntax->list #'(lhs ...))
|
||||
(syntax->list #'((tl-side-conds ...) ...)))]
|
||||
[(((bind-id . bind-pat) ...) ...)
|
||||
;; Also for pict, extract pattern bindings
|
||||
(map extract-pattern-binds (syntax->list #'(lhs ...)))]
|
||||
[(((rhs-bind-id . rhs-bind-pat) ...) ...)
|
||||
;; Also for pict, extract pattern bindings
|
||||
(map extract-term-let-binds (syntax->list #'(rhs ...)))]
|
||||
[(((where-id where-pat) ...) ...)
|
||||
;; Also for pict, extract where bindings
|
||||
#'(tl-bindings ...)])
|
||||
(syntax-property
|
||||
#`(begin
|
||||
(define-values (name2 name-predicate)
|
||||
(let ([sc `(side-conditions-rewritten ...)]
|
||||
[dsc `dom-side-conditions-rewritten])
|
||||
(build-metafunction
|
||||
lang
|
||||
sc
|
||||
(list rhs-fns ...)
|
||||
#,(if prev-metafunction
|
||||
(let ([term-fn (syntax-local-value prev-metafunction)])
|
||||
#`(metafunc-proc-cps #,(term-fn-get-id term-fn)))
|
||||
#''())
|
||||
#,(if prev-metafunction
|
||||
(let ([term-fn (syntax-local-value prev-metafunction)])
|
||||
#`(metafunc-proc-rhss #,(term-fn-get-id term-fn)))
|
||||
#''())
|
||||
(λ (f/dom cps rhss)
|
||||
(make-metafunc-proc
|
||||
(let ([name (lambda (x) (f/dom x))]) name)
|
||||
(list (list (to-lw lhs-for-lw)
|
||||
(list (to-lw/uq side-cond) ...)
|
||||
(list (cons (to-lw bind-id)
|
||||
(to-lw bind-pat))
|
||||
...
|
||||
(cons (to-lw rhs-bind-id)
|
||||
(to-lw/uq rhs-bind-pat))
|
||||
...
|
||||
(cons (to-lw where-id)
|
||||
(to-lw where-pat))
|
||||
...)
|
||||
(to-lw rhs))
|
||||
...)
|
||||
lang
|
||||
sc
|
||||
(list rhs-fns ...)
|
||||
#,(if prev-metafunction
|
||||
(let ([term-fn (syntax-local-value prev-metafunction)])
|
||||
#`(metafunc-proc-cps #,(term-fn-get-id term-fn)))
|
||||
#''())
|
||||
#,(if prev-metafunction
|
||||
(let ([term-fn (syntax-local-value prev-metafunction)])
|
||||
#`(metafunc-proc-rhss #,(term-fn-get-id term-fn)))
|
||||
#''())
|
||||
(λ (f/dom cps rhss)
|
||||
(make-metafunc-proc
|
||||
(let ([name (lambda (x) (f/dom x))]) name)
|
||||
(list (list (to-lw lhs-for-lw)
|
||||
(list (to-lw/uq side-cond) ...)
|
||||
(list (cons (to-lw bind-id)
|
||||
(to-lw bind-pat))
|
||||
...
|
||||
(cons (to-lw rhs-bind-id)
|
||||
(to-lw/uq rhs-bind-pat))
|
||||
...
|
||||
(cons (to-lw where-id)
|
||||
(to-lw where-pat))
|
||||
...)
|
||||
(to-lw rhs))
|
||||
...)
|
||||
lang
|
||||
#t ;; multi-args?
|
||||
'name
|
||||
cps
|
||||
rhss
|
||||
(let ([name (lambda (x) (name-predicate x))]) name)
|
||||
dsc
|
||||
sc))
|
||||
#t ;; multi-args?
|
||||
'name
|
||||
cps
|
||||
rhss
|
||||
(let ([name (lambda (x) (name-predicate x))]) name)
|
||||
dsc
|
||||
`codom-side-conditions-rewritten
|
||||
'name)))
|
||||
(term-define-fn name name2))
|
||||
'disappeared-use
|
||||
(map syntax-local-introduce (syntax->list #'(original-names ...))))))))))))]
|
||||
sc))
|
||||
dsc
|
||||
`codom-side-conditions-rewritten
|
||||
'name)))
|
||||
(term-define-fn name name2))
|
||||
'disappeared-use
|
||||
(map syntax-local-introduce (syntax->list #'(original-names ...)))))))))))))]
|
||||
[(_ prev-metafunction name lang clauses ...)
|
||||
(begin
|
||||
(unless (identifier? #'name)
|
||||
|
|
@ -1361,23 +1403,24 @@
|
|||
(identifier? (syntax name))
|
||||
(begin
|
||||
(check-rhss-not-empty stx (cddr (syntax->list stx)))
|
||||
(with-syntax ([((nt-names orig) ...) (pull-out-names 'define-language stx #'(names ...))])
|
||||
(with-syntax ([(subst-names ...) (generate-temporaries (syntax->list #'(nt-names ...)))])
|
||||
(syntax/loc stx
|
||||
(begin
|
||||
(define-syntax name
|
||||
(make-set!-transformer
|
||||
(make-language-id
|
||||
(case-lambda
|
||||
[(stx)
|
||||
(syntax-case stx (set!)
|
||||
[(set! x e) (raise-syntax-error 'define-language "cannot set! identifier" stx #'e)]
|
||||
[(x e (... ...)) #'(define-language-name e (... ...))]
|
||||
[x
|
||||
(identifier? #'x)
|
||||
#'define-language-name])])
|
||||
'(nt-names ...))))
|
||||
(define define-language-name (language name (names rhs ...) ...)))))))]))
|
||||
(prune-syntax
|
||||
(with-syntax ([((nt-names orig) ...) (pull-out-names 'define-language stx #'(names ...))])
|
||||
(with-syntax ([(subst-names ...) (generate-temporaries (syntax->list #'(nt-names ...)))])
|
||||
(syntax/loc stx
|
||||
(begin
|
||||
(define-syntax name
|
||||
(make-set!-transformer
|
||||
(make-language-id
|
||||
(case-lambda
|
||||
[(stx)
|
||||
(syntax-case stx (set!)
|
||||
[(set! x e) (raise-syntax-error 'define-language "cannot set! identifier" stx #'e)]
|
||||
[(x e (... ...)) #'(define-language-name e (... ...))]
|
||||
[x
|
||||
(identifier? #'x)
|
||||
#'define-language-name])])
|
||||
'(nt-names ...))))
|
||||
(define define-language-name (language name (names rhs ...) ...))))))))]))
|
||||
|
||||
(define-struct binds (source binds))
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user