Issue 1375/2: Create Translator_creator class

[lilypond.git] / lily / include / scheme-engraver.hh

diff --git a/lily/include/scheme-engraver.hh b/lily/include/scheme-engraver.hh
index 59cab571fbe4058a9f6b8b33dc663c5d464438ba..79e01a7e1de3a243cce7674c8966fb88e090309b 100644 (file)
--- a/lily/include/scheme-engraver.hh
+++ b/lily/include/scheme-engraver.hh
@@ -24,12 +24,24 @@
 
 #include "engraver.hh"
 
-class Scheme_engraver : public Engraver
+struct Preinit_Scheme_engraver {
+  SCM initialize_function_;
+  SCM finalize_function_;
+  SCM precomputable_methods_ [TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
+
+  // hashq table of interface-symbol -> scheme-function
+  Drul_array<SCM> interface_acknowledger_hash_;
+
+  // Alist of listened-symbol . scheme-function
+  SCM per_instance_listeners_;
+  Preinit_Scheme_engraver ();
+};
+
+class Scheme_engraver : Preinit_Scheme_engraver, public Engraver
 {
-  void init_from_scheme (SCM definition);
 public:
   TRANSLATOR_FAMILY_DECLARATIONS (Scheme_engraver);
-  Scheme_engraver (SCM definition);
+  Scheme_engraver (SCM definition, Context *c);
 
 protected:
   ~Scheme_engraver ();
@@ -48,21 +60,8 @@ private:
   }
 
   SCM init_acknowledgers (SCM alist);
-  // For now no description.  In future, something derived from the
-  // definition might make sense.
-  SCM translator_description () const { return SCM_EOL; }
 
   bool must_be_last_;
-
-  SCM initialize_function_;
-  SCM finalize_function_;
-  SCM precomputable_methods_ [TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
-
-  // hashq table of interface-symbol -> scheme-function
-  Drul_array<SCM> interface_acknowledger_hash_;
-
-  // Alist of listened-symbol . scheme-function
-  SCM per_instance_listeners_;
 };
 
 #endif /* SCHEME_ENGRAVER_HH */