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fix *SL errortrace to support higher phases

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The new *SL implementations that refer to Scribble
can lead to phase-2 code when running without ".zo"s.
This commit is contained in:
Matthew Flatt 2012-07-19 13:23:12 -05:00
parent 73e07f576b
commit 99dbc321f5
1 changed files with 8 additions and 3 deletions
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11
collects/lang/htdp-langs.rkt
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@ -1049,11 +1049,16 @@
(number? span))
(with-syntax ([expr expr]
[mark (list source line col start-position span)]
[teaching-languages-continuation-mark-key teaching-languages-continuation-mark-key])
#`(with-continuation-mark 'teaching-languages-continuation-mark-key
'mark
[teaching-languages-continuation-mark-key teaching-languages-continuation-mark-key]
[wcm (syntax-shift-phase-level #'with-continuation-mark (- phase base-phase))]
[quot (syntax-shift-phase-level #'quote (- phase base-phase))])
#`(wcm (quot teaching-languages-continuation-mark-key)
(quot mark)
expr))
expr)))
(define base-phase
(variable-reference->module-base-phase (#%variable-reference)))
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