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use delay/idle to load the xref for syncheck

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svn: r16825
This commit is contained in:
Eli Barzilay 2009-11-17 08:12:03 +00:00
parent 518a9d2df1
commit 97d99d8726
1 changed files with 3 additions and 20 deletions
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23
collects/drscheme/syncheck.ss
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@ -22,6 +22,7 @@ If the namespace does not, they are colored the unbound color.
scheme/contract
scheme/class
scheme/list
scheme/promise
drscheme/tool
syntax/toplevel
syntax/boundmap
@ -97,25 +98,8 @@ If the namespace does not, they are colored the unbound color.
(define (printf . args) (apply fprintf o args))
(define xref 'not-yet-loaded-xref)
(define (get-xref)
(cond
[(equal? xref 'failed-to-load) #f]
[else
(when (symbol? xref)
(error 'get-xref "xref has not yet been loaded"))
xref]))
(define (force-xref th)
(cond
[(equal? xref 'failed-to-load)
(void)]
[(symbol? xref)
(th)
(with-handlers ((exn? (λ (exn) (set! xref 'failed-to-load))))
(set! xref (load-collections-xref)))]
[else
(void)]))
(define xref (delay/idle (load-collections-xref)))
(define (get-xref) (force xref))
;;; ;;; ;;; ;;;;;
@ -1260,7 +1244,6 @@ If the namespace does not, they are colored the unbound color.
definitions-text
(λ ()
(open-status-line 'drscheme:check-syntax)
(force-xref (λ () (update-status-line 'drscheme:check-syntax status-loading-docs-index)))
(update-status-line 'drscheme:check-syntax status-coloring-program)
(parameterize ([currently-processing-definitions-text definitions-text])
(expanded-expression user-namespace user-directory sexp jump-to-id))