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highlights runtime errors in the teaching languages now

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svn: r7937
This commit is contained in:
Robby Findler 2007-12-10 16:43:42 +00:00
parent eab8008c4f
commit 3fa9f2bd5c
1 changed files with 2 additions and 2 deletions
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4
collects/lang/htdp-langs.ss
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@ -1064,7 +1064,7 @@
[source (car cms)]
[pos (cadr cms)]
[span (cddr cms)])
(if (is-a? source text%)
(if (path? source)
(list (make-srcloc source #f #f pos span))
(loop (cdr cms))))]))
'()))]
@ -1085,7 +1085,7 @@
(let ([source (syntax-source source-stx)]
[start-position (syntax-position source-stx)]
[span (syntax-span source-stx)])
(if (and (is-a? source text:basic<%>)
(if (and (path? source)
(number? start-position)
(number? span))
(with-syntax ([expr expr]