list = gh_append2 (list, gh_cons (t->self_scm (), SCM_EOL));
t->daddy_trans_l_ = this;
t->output_def_l_ = output_def_l_;
- t->add_processing ();
-
+ if (Translator_group*tg = dynamic_cast<Translator_group*> (t))
+ {
+ unsmob_translator_def (tg->definition_)->apply_property_operations (tg);
+ }
+
+ t->initialize ();
return list;
}
void
Translator_group::try_music_on_nongroup_children (Music *m)
{
bool hebbes_b =false;
-
for (SCM p = simple_trans_list_; !hebbes_b && gh_pair_p (p); p = gh_cdr (p))
{
}
bool
-Translator_group::do_try_music (Music* m)
+Translator_group::try_music (Music* m)
{
bool hebbes_b = try_music_on_nongroup_children (m);
return trans_l;
}
-#if 0
-/*
- should not use, instead: use properties to communicate between engravers.
- */
-Translator*
-Translator_group::get_simple_translator (String type) const
-{
- for (SCM p = simple_trans_list_; gh_pair_p (p); p =gh_cdr (p))
- {
- if (classname (unsmob_translator (gh_car (p))) == type)
- return unsmob_translator (gh_car (p));
- }
- if (daddy_trans_l_)
- return daddy_trans_l_->get_simple_translator (type);
- return 0;
-}
-#endif
-
bool
Translator_group::is_bottom_translator_b () const
{
}
-
-void
-Translator_group::do_add_processing ()
-{
- unsmob_translator_def (definition_)->apply_property_operations (this);
- for (SCM s = simple_trans_list_; gh_pair_p (s) ; s = gh_cdr (s))
- {
- Translator * t = unsmob_translator (gh_car (s));
- t->add_processing ();
- }
-}
-
/*
PROPERTIES
*/
return (daddy_trans_l_) ? daddy_trans_l_->where_defined (sym) : 0;
}
+/*
+ return SCM_EOL when not found.
+*/
SCM
Translator_group::get_property (SCM sym) const
{
- SCM val =SCM_UNDEFINED;
+ SCM val =SCM_EOL;
if (properties_dict ()->try_retrieve (sym, &val))
return val;
{
SCM prev = get_property (prop);
- /*
- we don't tack onto SCM_UNDEFINED, because it creates
- errors down the line, if we do scm_assoc().
- */
if (gh_pair_p (prev) || prev == SCM_EOL)
{
- bool ok = true;
+ bool ok = type_check_assignment (val, eltprop, ly_symbol2scm ("backend-type?"));
- SCM errport = scm_current_error_port ();
-
- SCM meta = scm_assoc (ly_symbol2scm ("meta"), prev);
- SCM props = scm_assoc (ly_symbol2scm ("properties"), gh_cdr (meta));
- SCM propdesc = scm_assoc (eltprop, gh_cdr (props));
- if (!gh_pair_p (propdesc))
- {
- scm_puts (_("Couldn't find property description for #'").ch_C(),errport);
- scm_display (eltprop, errport);
-
- scm_puts (_(" in element description ").ch_C(),errport);
- scm_display (prop, errport);
-
- scm_puts (_(". Perhaps you made a typing error?\n").ch_C(),errport);
- }
- else
- {
-
- SCM predicate = gh_cadr (propdesc);
- if (gh_call1 (predicate, val) == SCM_BOOL_F)
- {
- ok = false;
- scm_puts (_("Failed typecheck for #'").ch_C (),errport);
- scm_display (eltprop,errport);
- scm_puts ( _(", value ").ch_C (), errport);
- scm_display (val, errport);
- scm_puts (_(" must be of type ").ch_C (), errport);
- SCM typefunc = scm_eval2 (ly_symbol2scm ("type-name"), SCM_EOL);
-
- scm_display (gh_call1 (typefunc, predicate), errport);
- scm_puts ("\n", errport);
- }
- }
+
if (ok)
{
prev = gh_cons (gh_cons (eltprop, val), prev);
STUBS
*/
void
-Translator_group::do_pre_move_processing ()
+Translator_group::stop_translation_timestep ()
{
each (&Translator::pre_move_processing);
}
void
-Translator_group::do_post_move_processing ()
+Translator_group::start_translation_timestep ()
{
each (&Translator::post_move_processing);
}
void
-Translator_group::do_process_music ()
+Translator_group::do_announces ()
{
- each (&Translator::process_music);
+ each (&Translator::announces);
}
void
-Translator_group::do_creation_processing ()
+Translator_group::initialize ()
{
- each (&Translator::creation_processing);
+ each (&Translator::initialize);
}
void
-Translator_group::do_removal_processing ()
+Translator_group::finalize ()
{
each (&Translator::removal_processing);
}
+
+
+bool
+type_check_assignment (SCM val, SCM sym, SCM type_symbol)
+{
+ bool ok = true;
+ SCM type_p = SCM_EOL;
+
+ if (gh_symbol_p(sym))
+ type_p = scm_object_property (sym, type_symbol);
+
+ if (type_p != SCM_EOL && !gh_procedure_p (type_p))
+ {
+ warning (_f ("Can't find property type-check for `%s'. Perhaps you made a typing error?",
+ ly_symbol2string (sym).ch_C ()));
+ }
+ else
+ {
+ if (val != SCM_EOL
+ && gh_procedure_p (type_p)
+ && gh_call1 (type_p, val) == SCM_BOOL_F)
+ {
+ SCM errport = scm_current_error_port ();
+ ok = false;
+ SCM typefunc = scm_eval2 (ly_symbol2scm ("type-name"), SCM_EOL);
+ SCM type_name = gh_call1 (typefunc, type_p);
+
+ scm_puts (_f ("Failed typecheck for `%s', value `%s' must be of type `%s'",
+ ly_symbol2string (sym).ch_C (),
+ ly_scm2string (ly_write2scm( val)).ch_C (),
+ ly_scm2string (type_name).ch_C ()).ch_C (),
+ errport);
+ scm_puts ("\n", errport);
+ }
+ }
+ return ok;
+}
+
+SCM
+ly_get_trans_property (SCM context, SCM name)
+{
+ Translator *t = unsmob_translator (context);
+ Translator_group* tr= dynamic_cast<Translator_group*> (t);
+ if (!t || !tr)
+ {
+ /* programming_error? */
+ warning (_ ("ly-get-trans-property: expecting a Translator_group argument"));
+ return SCM_EOL;
+ }
+ return tr->get_property (name);
+
+}
+SCM
+ly_set_trans_property (SCM context, SCM name, SCM val)
+{
+
+ Translator *t = unsmob_translator (context);
+ Translator_group* tr= dynamic_cast<Translator_group*> (t);
+ if (tr)
+ {
+ tr->set_property (name, val);
+ }
+ return SCM_UNSPECIFIED;
+}
+
+
+
+
+void
+add_trans_scm_funcs ()
+{
+ scm_make_gsubr ("ly-get-trans-property", 2, 0, 0, (Scheme_function_unknown)ly_get_trans_property);
+ scm_make_gsubr ("ly-get-trans-property", 3, 0, 0, (Scheme_function_unknown)ly_get_trans_property);
+}
+
+ADD_SCM_INIT_FUNC(trans_scm, add_trans_scm_funcs);
projects / lilypond.git / blobdiff