1 #include "protected-scm.hh"
2 #include "grob-interface.hh"
3 #include "lily-guile.hh"
7 Protected_scm all_ifaces;
9 void add_interface (const char * symbol,
13 SCM s = ly_symbol2scm (symbol);
14 SCM d = gh_str02scm (descr);
15 SCM l = parse_symbol_list (vars);
18 ly_add_interface(s,d,l);
22 ly_add_interface (SCM a, SCM b, SCM c)
24 SCM_ASSERT_TYPE (gh_symbol_p(a), a, SCM_ARG1, __FUNCTION__, "symbol");
25 SCM_ASSERT_TYPE (gh_string_p(b), b, SCM_ARG2, __FUNCTION__, "string");
26 SCM_ASSERT_TYPE (gh_list_p(c), c, SCM_ARG3, __FUNCTION__, "list of syms");
27 if (!gh_vector_p (all_ifaces))
29 all_ifaces = scm_make_vector (gh_int2scm (40), SCM_EOL);
32 SCM entry = scm_list_n (a, b, c, SCM_UNDEFINED);
34 scm_hashq_set_x (all_ifaces, a, entry);
37 return SCM_UNSPECIFIED;
42 ly_all_grob_interfaces ()
50 scm_c_define_gsubr ("ly-add-interface", 3, 0, 0,
51 (Scheme_function_unknown)ly_add_interface);
52 scm_c_define_gsubr ("ly-all-grob-interfaces", 0, 0, 0,
53 (Scheme_function_unknown)ly_all_grob_interfaces);
56 ADD_SCM_INIT_FUNC(giface, init_iface_funcs);
59 check_interfaces_for_property (Grob *me, SCM sym)
61 SCM ifs = me->get_grob_property ("interfaces");
65 for (; !found && gh_pair_p (ifs); ifs =gh_cdr (ifs))
67 SCM iface = scm_hashq_ref (all_ifaces , gh_car (ifs), SCM_BOOL_F);
68 if (iface == SCM_BOOL_F)
70 String msg = to_str ("Unknown interface `%s'",
71 ly_scm2string (scm_symbol_to_string (gh_car(ifs))).ch_C());
72 programming_error (msg);
76 found= found || (scm_memq (sym, gh_caddr (iface)) != SCM_BOOL_F);
81 String str = to_str("Grob %s has no interface for property %s",
83 ly_symbol2string(sym).ch_C());
84 programming_error (str);