1 #include "protected-scm.hh"
2 #include "grob-interface.hh"
3 #include "lily-guile.hh"
7 Protected_scm all_ifaces;
10 void add_interface (const char * symbol,
14 SCM s = ly_symbol2scm (symbol);
15 SCM d = gh_str02scm (descr);
16 SCM l = parse_symbol_list (vars);
19 ly_add_interface(s,d,l);
23 ly_add_interface (SCM a, SCM b, SCM c)
25 SCM_ASSERT_TYPE (gh_symbol_p(a), a, SCM_ARG1, __FUNCTION__, "symbol");
26 SCM_ASSERT_TYPE (gh_string_p(b), b, SCM_ARG2, __FUNCTION__, "string");
27 SCM_ASSERT_TYPE (gh_list_p(c), c, SCM_ARG3, __FUNCTION__, "list of syms");
28 if (!gh_vector_p (all_ifaces))
30 all_ifaces = scm_make_vector (gh_int2scm (40), SCM_EOL);
33 SCM entry = scm_list_n (a, b, c, SCM_UNDEFINED);
35 scm_hashq_set_x (all_ifaces, a, entry);
38 return SCM_UNSPECIFIED;
43 ly_all_grob_interfaces ()
51 scm_c_define_gsubr ("ly-add-interface", 3, 0, 0,
52 (Scheme_function_unknown)ly_add_interface);
53 scm_c_define_gsubr ("ly-all-grob-interfaces", 0, 0, 0,
54 (Scheme_function_unknown)ly_all_grob_interfaces);
57 ADD_SCM_INIT_FUNC(giface, init_iface_funcs);
60 check_interfaces_for_property (Grob *me, SCM sym)
62 SCM ifs = me->get_grob_property ("interfaces");
66 for (; !found && gh_pair_p (ifs); ifs =gh_cdr (ifs))
68 SCM iface = scm_hashq_ref (all_ifaces , gh_car (ifs), SCM_BOOL_F);
69 if (iface == SCM_BOOL_F)
71 String msg = to_str ("Unknown interface `%s'",
72 ly_scm2string (scm_symbol_to_string (gh_car(ifs))).ch_C());
73 programming_error (msg);
77 found= found || (scm_memq (sym, gh_caddr (iface)) != SCM_BOOL_F);
82 String str = to_str("Grob %s has no interface for property %s",
84 ly_symbol2string(sym).ch_C());
85 programming_error (str);