Issue 4378: Rewrite Protected_scm for static lifetime requirements

[lilypond.git] / lily / simple-closure.cc

diff --git a/lily/simple-closure.cc b/lily/simple-closure.cc
index a4204cddc4e381a7bd68f886af5da850fd5224c9..b62649f06d52b28c88bfd40081ac917d771f8dce 100644 (file)
--- a/lily/simple-closure.cc
+++ b/lily/simple-closure.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2005--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
 
   LilyPond is free software: you can redistribute it and/or modify
@@ -32,7 +32,7 @@ evaluate_args (SCM delayed_argument, SCM args, bool pure, int start, int end)
       *tail = scm_cons (evaluate_with_simple_closure (delayed_argument, scm_car (s),
                                                       pure, start, end),
                         SCM_EOL);
-      if (scm_car (*tail) == SCM_UNSPECIFIED)
+      if (scm_is_eq (scm_car (*tail), SCM_UNSPECIFIED))
         return SCM_UNSPECIFIED;
       tail = SCM_CDRLOC (*tail);
     }
@@ -50,13 +50,13 @@ evaluate_with_simple_closure (SCM delayed_argument,
   if (Simple_closure *sc = Simple_closure::unsmob (expr))
     {
       SCM inside = sc->expression ();
-      SCM proc = !pure && Unpure_pure_container::unsmob (scm_car (inside))
+      SCM proc = !pure && Unpure_pure_container::is_smob (scm_car (inside))
         ? Unpure_pure_container::unsmob (scm_car (inside))->unpure_part ()
         : scm_car (inside);
       SCM args = scm_cons (delayed_argument,
                            evaluate_args (delayed_argument, scm_cdr (inside),
                                           pure, start, end));
-      if (scm_cdr (args) == SCM_UNSPECIFIED)
+      if (scm_is_eq (scm_cdr (args), SCM_UNSPECIFIED))
         return SCM_UNSPECIFIED;
       if (pure)
         return call_pure_function (proc, args, start, end);
@@ -64,16 +64,16 @@ evaluate_with_simple_closure (SCM delayed_argument,
     }
   else if (!scm_is_pair (expr))
     return expr;
-  else if (scm_car (expr) == ly_symbol2scm ("quote"))
+  else if (scm_is_eq (scm_car (expr), ly_symbol2scm ("quote")))
     return scm_cadr (expr);
-  else if (Unpure_pure_container::unsmob (scm_car (expr))
+  else if (Unpure_pure_container::is_smob (scm_car (expr))
            || ly_is_procedure (scm_car (expr)))
     {
-      SCM proc = !pure && Unpure_pure_container::unsmob (scm_car (expr))
+      SCM proc = !pure && Unpure_pure_container::is_smob (scm_car (expr))
         ? Unpure_pure_container::unsmob (scm_car (expr))->unpure_part ()
         : scm_car (expr);
       SCM args = evaluate_args (delayed_argument, scm_cdr (expr), pure, start, end);
-      if (args == SCM_UNSPECIFIED)
+      if (scm_is_eq (args, SCM_UNSPECIFIED))
         return SCM_UNSPECIFIED;
       if (pure)
         return call_pure_function (proc, args, start, end);
@@ -114,10 +114,10 @@ LY_DEFINE (ly_eval_simple_closure, "ly:eval-simple-closure",
 }
 
 int
-Simple_closure::print_smob (SCM s, SCM port, scm_print_state *)
+Simple_closure::print_smob (SCM port, scm_print_state *)
 {
   scm_puts ("#<simple-closure ", port);
-  scm_display (scm_cdr (s), port);
+  scm_display (expression (), port);
   scm_puts (" >", port);
   return 1;
 }