initHEADmain

1 files changed, 33 insertions, 0 deletions

diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..1b25ae5
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,33 @@
+/*
+ * melisma - extensible and scriptable audio engine
+ * Copyright (C) 2026  Ludvig Gunne Lindström
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <lauxlib.h>
+#include "util.h"
+
+int lua_pcall_with_backtrace(lua_State *s, int n, int r)
+{
+    int f = lua_gettop(s) - n;
+    lua_getglobal(s,"debug");
+    lua_getfield(s,-1,"traceback");
+    lua_remove(s,-2);
+    lua_insert(s,f);
+    int res = lua_pcall(s,n,r,f);
+    lua_remove(s,f);
+    return res;
+}