X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fperformance-scheme.cc;h=ed42635756b76e6325f3ad2d7dd16de487eb556a;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=6a2284587e93bc148ec8c831878e27c944e4a485;hpb=978fa09436484d8d670e8ee8b3eb8cfacd493675;p=lilypond.git

diff --git a/lily/performance-scheme.cc b/lily/performance-scheme.cc
index 6a2284587e..ed42635756 100644
--- a/lily/performance-scheme.cc
+++ b/lily/performance-scheme.cc
@@ -1,23 +1,32 @@
 /*
-  performance-scheme.cc -- implement Performance bindings
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2005 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 "performance.hh"
 
 LY_DEFINE (ly_performance_write, "ly:performance-write",
-	   2, 0, 0, (SCM performance, SCM filename),
-	   "Write @var{performance} to @var{filename}")
+           2, 0, 0, (SCM performance, SCM filename),
+           "Write @var{performance} to @var{filename}.")
 {
-  Performance *perf = dynamic_cast<Performance *> (unsmob_music_output (performance));
-
-  SCM_ASSERT_TYPE (perf, performance, SCM_ARG1, __FUNCTION__, "Performance");
-  SCM_ASSERT_TYPE (scm_is_string (filename), filename, SCM_ARG2, __FUNCTION__, "file name");
+  LY_ASSERT_SMOB (Performance, performance, 1);
+  LY_ASSERT_TYPE (scm_is_string, filename, 2);
 
-  perf->write_output (ly_scm2string (filename));
+  Performance::unsmob (performance)->write_output (ly_scm2string (filename));
   return SCM_UNSPECIFIED;
 }