racket/collects/syntax/private/doctable.ss
2005-05-27 18:56:37 +00:00

28 lines
796 B
Scheme

(module doctable mzscheme
(require (lib "moddep.ss" "syntax"))
(define ht (make-hash-table 'equal))
(define (register-documentation src-stx label v)
(let ([mod (let ([s (syntax-source-module src-stx)])
(if (module-path-index? s)
((current-module-name-resolver)
(collapse-module-path-index s `(lib "docprovide.ss" "syntax"))
#f #f)
s))])
(let ([mht (hash-table-get ht mod
(lambda ()
(let ([mht (make-hash-table)])
(hash-table-put! ht mod mht)
mht)))])
(hash-table-put! mht label v))))
(define (lookup-documentation mod label)
(let ([mht (hash-table-get ht mod (lambda () #f))])
(and mht
(hash-table-get mht label (lambda () #f)))))
(provide register-documentation
lookup-documentation))