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Compatibility with Racket: use a wrapper around (make-)attribute-mapping

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This commit is contained in:
Georges Dupéron 2018-06-03 12:42:05 +02:00
parent 6f663028cb
commit 2799d88ee3
1 changed files with 13 additions and 13 deletions
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26
untyped-only/syntax-parse.rkt
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@ -9,22 +9,22 @@
(version-case
[(version< (version) "6.90.0.24")
(require (prefix-in - syntax/parse/private/residual))
(define-for-syntax (compatibility-syntax-or-check syntax?)
syntax?)]
(require (rename-in (prefix-in - syntax/parse/private/residual)
[-make-attribute-mapping
compat-make-attribute-mapping]))]
[else
(require (rename-in (prefix-in - racket/private/template)
[-attribute-mapping -make-attribute-mapping])
(only-in syntax/parse/private/residual ;; must be an absolute path
[-attribute-mapping --make-attribute-mapping])
;; must be an absolute path
(only-in syntax/parse/private/residual
check-attr-value))
(define-for-syntax (-attribute-mapping-syntax? x)
;; attribute-mapping-check is actually false when attribute-mapping-syntax?
;; would have been true (thanks rmculpepper !)
(not (-attribute-mapping-check x)))
(define-for-syntax (compatibility-syntax-or-check syntax?)
(if syntax?
#f
(quote-syntax check-attr-value)))])
(define-for-syntax (compat-make-attribute-mapping valvar name depth syntax?)
(--make-attribute-mapping
valvar name depth (if syntax? #f (quote-syntax check-attr-value))))])
(provide attribute*
(for-syntax attribute-info)
@ -95,10 +95,10 @@
(define valvar
val)
(define-syntax tmp-attr
(-make-attribute-mapping (quote-syntax valvar)
'name
'depth
(compatibility-syntax-or-check 'syntax?)))
(compat-make-attribute-mapping (quote-syntax valvar)
'name
'depth
'syntax?))
(define-syntax name
(make-syntax-mapping 'depth
(quote-syntax tmp-attr)))))