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-rw-r--r--libguile/procs.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/libguile/procs.c b/libguile/procs.c
index 93e35ab6c..815e29fe7 100644
--- a/libguile/procs.c
+++ b/libguile/procs.c
@@ -112,6 +112,7 @@ SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0,
case scm_tcs_closures:
case scm_tcs_subrs:
case scm_tc7_pws:
+ case scm_tc7_program:
return SCM_BOOL_T;
case scm_tc7_smob:
return scm_from_bool (SCM_SMOB_DESCRIPTOR (obj).apply);
@@ -151,6 +152,10 @@ SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0,
return SCM_BOOL_T;
case scm_tc7_gsubr:
return scm_from_bool (SCM_GSUBR_REQ (SCM_GSUBR_TYPE (obj)) == 0);
+ case scm_tc7_program:
+ return scm_from_bool (SCM_PROGRAM_DATA (obj)->nargs == 0
+ || (SCM_PROGRAM_DATA (obj)->nargs == 1
+ && SCM_PROGRAM_DATA (obj)->nrest));
case scm_tc7_pws:
obj = SCM_PROCEDURE (obj);
goto again;
@@ -179,6 +184,8 @@ scm_subr_p (SCM obj)
return 0;
}
+SCM_SYMBOL (sym_documentation, "documentation");
+
SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0,
(SCM proc),
"Return the documentation string associated with @code{proc}. By\n"
@@ -190,6 +197,8 @@ SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0,
SCM code;
SCM_ASSERT (scm_is_true (scm_procedure_p (proc)),
proc, SCM_ARG1, FUNC_NAME);
+ if (SCM_PROGRAM_P (proc))
+ return scm_assq_ref (scm_program_properties (proc), sym_documentation);
switch (SCM_TYP7 (proc))
{
case scm_tcs_closures: