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authorMark H Weaver <mhw@netris.org>2012-02-14 02:14:10 -0500
committerMark H Weaver <mhw@netris.org>2012-02-15 11:23:27 -0500
commit76b9bac565182dd7d0ffe416c3382ac7d59d93ab (patch)
tree10f39a44fdefc7598828f819b161a59d1231d775 /doc/ref/api-debug.texi
parentfb3a112122b6406e88adbff2299aacc5230cc8ec (diff)
downloadguile-76b9bac565182dd7d0ffe416c3382ac7d59d93ab.tar.gz
Add 'supports-source-properties?' predicate
* libguile/srcprop.c (scm_supports_source_properties_p): New procedure. (supports_source_props): New static C function. * libguile/srcprop.h (scm_supports_source_properties_p): Add prototype. * doc/ref/api-debug.texi (Source Properties): Add documentation.
Diffstat (limited to 'doc/ref/api-debug.texi')
-rw-r--r--doc/ref/api-debug.texi6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/ref/api-debug.texi b/doc/ref/api-debug.texi
index c5fbe5629..18371f0fc 100644
--- a/doc/ref/api-debug.texi
+++ b/doc/ref/api-debug.texi
@@ -258,6 +258,12 @@ ERROR: Unbound variable: xxx
In the latter case, no source properties were stored, so the error
doesn't have any source information.
+@deffn {Scheme Procedure} supports-source-properties? obj
+@deffnx {C Function} scm_supports_source_properties_p (obj)
+Return #t if source properties can be associated with @var{obj},
+otherwise return #f.
+@end deffn
+
The recording of source properties is controlled by the read option
named ``positions'' (@pxref{Scheme Read}). This option is switched
@emph{on} by default.