mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-05-02 04:40:29 +02:00
Code Activity

Add 'supports-source-properties?' predicate

Browse source 
* 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.
This commit is contained in:
Mark H Weaver 2012-02-14 02:14:10 -05:00
parent fb3a112122
commit 76b9bac565
3 changed files with 27 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

18
libguile/srcprop.c
View file

@ -94,6 +94,14 @@ static SCM scm_srcprops_to_alist (SCM obj);
scm_t_bits scm_tc16_srcprops;
static int
supports_source_props (SCM obj)
{
return SCM_NIMP (obj) && !scm_is_symbol (obj) && !scm_is_keyword (obj);
}
static int
srcprops_print (SCM obj, SCM port, scm_print_state *pstate)
{
@ -160,6 +168,16 @@ scm_srcprops_to_alist (SCM obj)
return alist;
}
SCM_DEFINE (scm_supports_source_properties_p, "supports-source-properties?", 1, 0, 0,
(SCM obj),
"Return #t if @var{obj} supports adding source properties,\n"
"otherwise return #f.")
#define FUNC_NAME s_scm_supports_source_properties_p
{
return scm_from_bool (supports_source_props (obj));
}
#undef FUNC_NAME
SCM_DEFINE (scm_source_properties, "source-properties", 1, 0, 0,
(SCM obj),
"Return the source property association list of @var{obj}.")