-/*
- protected-scm.cc -- implement Protected_scm
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1998--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ 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 "protected-scm.hh"
-#include "lily-guile.hh"
-#include "main.hh"
Protected_scm::Protected_scm ()
{
- object_ = 0;
+ object_ = SCM_UNDEFINED;
}
Protected_scm::Protected_scm (SCM s)
{
- object_ = s ? scm_protect_object (s): 0;
+ object_ = SCM_NIMP (s) ? scm_gc_protect_object (s) : s;
}
Protected_scm::Protected_scm (Protected_scm const &s)
{
- object_ = s.object_ ? scm_protect_object (s.object_) : 0;
+ object_ = (SCM_NIMP (s.object_) ? scm_gc_protect_object (s.object_)
+ : s.object_);
}
-Protected_scm &
-Protected_scm::operator =(SCM s)
+Protected_scm::~Protected_scm ()
+{
+ if (SCM_NIMP (object_))
+ scm_gc_unprotect_object (object_);
+}
+
+Protected_scm &
+Protected_scm::operator = (SCM s)
{
if (object_ == s)
return *this;
- if (object_)
- scm_unprotect_object(object_);
- object_ = s ? scm_protect_object (s): 0;
+ if (SCM_NIMP (object_))
+ scm_gc_unprotect_object (object_);
+
+ object_ = SCM_NIMP (s) ? scm_gc_protect_object (s) : s;
return *this;
}
-Protected_scm&
+Protected_scm &
Protected_scm::operator = (Protected_scm const &s)
{
- return operator= (s.object_);
-}
-
-
-Protected_scm::~Protected_scm ()
-{
- if (object_)
- {
- scm_unprotect_object (object_);
- }
+ return operator = (s.object_);
}
Protected_scm::operator SCM () const
return object_;
}
-SCM
+SCM
Protected_scm::to_SCM () const
{
return object_;