/*
- translator-group.cc -- implement Translator_group
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>,
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>,
Erik Sandberg <mandolaerik@gmail.com>
+
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "translator-group.hh"
#include "context-def.hh"
#include "context.hh"
#include "dispatcher.hh"
+#include "engraver.hh"
#include "engraver-group.hh"
#include "international.hh"
#include "main.hh"
#include "music.hh"
#include "output-def.hh"
+#include "performer.hh"
#include "performer-group.hh"
+#include "scheme-engraver.hh"
#include "scm-hash.hh"
#include "warn.hh"
-
void
-translator_each (SCM list, Translator_method method)
+translator_each (SCM list, SCM method)
{
for (SCM p = list; scm_is_pair (p); p = scm_cdr (p))
- (unsmob_translator (scm_car (p))->*method) ();
+ scm_call_1 (method, scm_car (p));
}
void
if (context_)
{
programming_error ("translator group is already connected to context "
- + context_->context_name ());
+ + context_->context_name ());
}
-
+
context_ = c;
- c->event_source ()->add_listener (GET_LISTENER (create_child_translator),
- ly_symbol2scm ("AnnounceNewContext"));
+ c->event_source ()->add_listener (GET_LISTENER (Translator_group, create_child_translator),
+ ly_symbol2scm ("AnnounceNewContext"));
for (SCM tr_list = simple_trans_list_; scm_is_pair (tr_list); tr_list = scm_cdr (tr_list))
{
- Translator *tr = unsmob_translator (scm_car (tr_list));
+ Translator *tr = unsmob<Translator> (scm_car (tr_list));
tr->connect_to_context (c);
}
}
{
for (SCM tr_list = simple_trans_list_; scm_is_pair (tr_list); tr_list = scm_cdr (tr_list))
{
- Translator *tr = unsmob_translator (scm_car (tr_list));
+ Translator *tr = unsmob<Translator> (scm_car (tr_list));
tr->disconnect_from_context (context_);
}
- context_->event_source ()->remove_listener (GET_LISTENER (create_child_translator),
- ly_symbol2scm ("AnnounceNewContext"));
+ context_->event_source ()->remove_listener (GET_LISTENER (Translator_group, create_child_translator),
+ ly_symbol2scm ("AnnounceNewContext"));
context_ = 0;
protected_events_ = SCM_EOL;
}
{
}
+/*
+ Both filter_performers and filter_engravers used to use a direct dynamic_cast
+ on the unsmobbed translator to be filtered, i.e.,
+
+ if (unsmob<Performer> (scm_car (*tail)))
+
+ but this caused mysterious optimisation issues in several GUB builds. See
+ issue #818 for the background to this change.
+*/
SCM
filter_performers (SCM ell)
{
SCM *tail = ℓ
for (SCM p = ell; scm_is_pair (p); p = scm_cdr (p))
{
- if (dynamic_cast<Performer *> (unsmob_translator (scm_car (*tail))))
- *tail = scm_cdr (*tail);
+ if (unsmob<Performer> (scm_car (*tail)))
+ *tail = scm_cdr (*tail);
else
- tail = SCM_CDRLOC (*tail);
+ tail = SCM_CDRLOC (*tail);
}
return ell;
}
SCM *tail = ℓ
for (SCM p = ell; scm_is_pair (p); p = scm_cdr (p))
{
- if (dynamic_cast<Engraver *> (unsmob_translator (scm_car (*tail))))
- *tail = scm_cdr (*tail);
+ if (unsmob<Engraver> (scm_car (*tail)))
+ *tail = scm_cdr (*tail);
else
- tail = SCM_CDRLOC (*tail);
+ tail = SCM_CDRLOC (*tail);
}
return ell;
}
-/*
+/*
Protects the parameter from being garbage collected. The object is
protected until the next disconnect_from_context call.
this list. This eliminates the need for derived_mark methods in most
translators; all incoming events are instead protected by the
translator group.
-
+
TODO: Should the list also be flushed at the beginning of each new
moment?
*/
Create a new translator for a newly created child context. Triggered
by AnnounceNewContext events.
*/
-IMPLEMENT_LISTENER (Translator_group, create_child_translator);
void
Translator_group::create_child_translator (SCM sev)
{
- Stream_event *ev = unsmob_stream_event (sev);
+ Stream_event *ev = unsmob<Stream_event> (sev);
// get from AnnounceNewContext
SCM cs = ev->get_property ("context");
- Context *new_context = unsmob_context (cs);
- Context_def *def = unsmob_context_def (new_context->get_definition ());
+ Context *new_context = unsmob<Context> (cs);
+ Context_def *def = unsmob<Context_def> (new_context->get_definition ());
SCM ops = new_context->get_definition_mods ();
-
+
SCM trans_names = def->get_translator_names (ops);
Translator_group *g = get_translator_group (def->get_translator_group_type ());
for (SCM s = trans_names; scm_is_pair (s); s = scm_cdr (s))
{
- Translator *type = get_translator (scm_car (s));
- if (!type)
- warning (_f ("cannot find: `%s'", ly_symbol2string (scm_car (s)).c_str ()));
+ SCM trans = scm_car (s);
+
+ if (ly_is_symbol (trans))
+ trans = get_translator_creator (trans);
+ if (ly_is_procedure (trans))
+ trans = scm_call_1 (trans, cs);
+ if (ly_cheap_is_list (trans))
+ trans = (new Scheme_engraver (trans, new_context))->unprotect ();
+ Translator *instance = unsmob<Translator> (trans);
+ if (!instance)
+ {
+ warning (_f ("cannot find: `%s'", ly_scm_write_string (trans).c_str ()));
+ continue;
+ }
+
+ if (instance->must_be_last ())
+ {
+ SCM cons = scm_cons (trans, SCM_EOL);
+ if (scm_is_pair (trans_list))
+ scm_set_cdr_x (scm_last_pair (trans_list), cons);
+ else
+ trans_list = cons;
+ }
else
- {
- Translator *tr = type->clone ();
- SCM str = tr->self_scm ();
-
- if (tr->must_be_last ())
- {
- SCM cons = scm_cons (str, SCM_EOL);
- if (scm_is_pair (trans_list))
- scm_set_cdr_x (scm_last_pair (trans_list), cons);
- else
- trans_list = cons;
- }
- else
- trans_list = scm_cons (str, trans_list);
-
- tr->daddy_context_ = new_context;
- tr->unprotect ();
- }
+ trans_list = scm_cons (trans, trans_list);
+
}
/* Filter unwanted translator types. Required to make
- \with {\consists "..."} work. */
+ \with { \consists "..." } work. */
if (dynamic_cast<Engraver_group *> (g))
g->simple_trans_list_ = filter_performers (trans_list);
else if (dynamic_cast<Performer_group *> (g))
g->connect_to_context (new_context);
g->unprotect ();
- recurse_over_translators (new_context,
- &Translator::initialize,
- &Translator_group::initialize,
- DOWN);
+ recurse_over_translators
+ (new_context,
+ Callback0_wrapper::make_smob<Translator, &Translator::initialize> (),
+ Callback0_wrapper::make_smob<Translator_group, &Translator_group::initialize> (),
+ DOWN);
}
SCM
if (tg && dir == DOWN)
{
tg->precomputed_translator_foreach (idx);
- tg->call_precomputed_self_method (idx);
}
for (SCM s = c->children_contexts (); scm_is_pair (s);
s = scm_cdr (s))
- precomputed_recurse_over_translators (unsmob_context (scm_car (s)), idx, dir);
+ precomputed_recurse_over_translators (unsmob<Context> (scm_car (s)), idx, dir);
if (tg && dir == UP)
{
tg->precomputed_translator_foreach (idx);
- tg->call_precomputed_self_method (idx);
}
}
void
-recurse_over_translators (Context *c, Translator_method ptr,
- Translator_group_method tg_ptr, Direction dir)
+recurse_over_translators (Context *c, SCM ptr,
+ SCM tg_ptr, Direction dir)
{
- Translator_group *tg
- = dynamic_cast<Translator_group *> (c->implementation ());
+ Translator_group *tg = c->implementation ();
+ SCM tg_scm = tg ? tg->self_scm () : SCM_UNDEFINED;
if (tg && dir == DOWN)
{
- (tg->*tg_ptr) ();
+ scm_call_1 (tg_ptr, tg_scm);
translator_each (tg->get_simple_trans_list (), ptr);
}
for (SCM s = c->children_contexts (); scm_is_pair (s);
s = scm_cdr (s))
- recurse_over_translators (unsmob_context (scm_car (s)), ptr, tg_ptr, dir);
+ recurse_over_translators (unsmob<Context> (scm_car (s)), ptr, tg_ptr, dir);
if (tg && dir == UP)
{
translator_each (tg->get_simple_trans_list (),
- ptr);
+ ptr);
- (tg->*tg_ptr) ();
+ scm_call_1 (tg_ptr, tg_scm);
}
}
{
for (SCM s = simple_trans_list_; scm_is_pair (s); s = scm_cdr (s))
{
- Translator *tr = unsmob_translator (scm_car (s));
- Translator_void_method_ptr ptrs[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
+ Translator *tr = unsmob<Translator> (scm_car (s));
+ SCM ptrs[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
tr->fetch_precomputable_methods (ptrs);
assert (tr);
for (int i = 0; i < TRANSLATOR_METHOD_PRECOMPUTE_COUNT; i++)
- {
- if (ptrs[i])
- precomputed_method_bindings_[i].push_back (Translator_method_binding (tr, ptrs[i]));
- }
+ {
+ if (!SCM_UNBNDP (ptrs[i]))
+ precomputed_method_bindings_[i].push_back (Method_instance (ptrs[i], tr));
+ }
}
- fetch_precomputable_methods (precomputed_self_method_bindings_);
}
void
Translator_group::precomputed_translator_foreach (Translator_precompute_index idx)
{
- vector<Translator_method_binding> &bindings (precomputed_method_bindings_[idx]);
+ vector<Method_instance> &bindings (precomputed_method_bindings_[idx]);
for (vsize i = 0; i < bindings.size (); i++)
- bindings[i].invoke ();
-}
-
-void
-Translator_group::fetch_precomputable_methods (Translator_group_void_method ptrs[])
-{
- for (int i = 0; i < TRANSLATOR_METHOD_PRECOMPUTE_COUNT; i++)
- ptrs[i] = 0;
-}
-
-void
-Translator_group::call_precomputed_self_method (Translator_precompute_index idx)
-{
- if (precomputed_self_method_bindings_[idx])
- (*precomputed_self_method_bindings_[idx]) (this);
+ bindings[i]();
}
Translator_group::~Translator_group ()
{
}
-#include "ly-smobs.icc"
-IMPLEMENT_SMOBS (Translator_group);
-IMPLEMENT_DEFAULT_EQUAL_P (Translator_group);
-IMPLEMENT_TYPE_P (Translator_group, "ly:translator-group?");
+const char * const Translator_group::type_p_name_ = "ly:translator-group?";
int
-Translator_group::print_smob (SCM s, SCM port, scm_print_state *)
+Translator_group::print_smob (SCM port, scm_print_state *) const
{
- Translator_group *me = (Translator_group *) SCM_CELL_WORD_1 (s);
scm_puts ("#<Translator_group ", port);
- scm_puts (me->class_name (), port);
- scm_display (me->simple_trans_list_, port);
+ scm_puts (class_name (), port);
+ scm_display (simple_trans_list_, port);
scm_puts (" >", port);
return 1;
}
SCM
-Translator_group::mark_smob (SCM smob)
+Translator_group::mark_smob () const
{
- Translator_group *me = (Translator_group *)SCM_CELL_WORD_1 (smob);
-
- me->derived_mark ();
- scm_gc_mark (me->protected_events_);
- return me->simple_trans_list_;
+ derived_mark ();
+ scm_gc_mark (protected_events_);
+ return simple_trans_list_;
}