Change directory structure

luprex/cpp/core/traceback.hpp

@@ -0,0 +1,33 @@
+/////////////////////////////////////////////////////////////////
+//
+// TRACEBACK ROUTINES
+//
+// The following routines are meant to help produce good-quality
+// tracebacks from errors in lua code.
+//
+/////////////////////////////////////////////////////////////////
+
+
+#ifndef TRACEBACK_HPP
+#define TRACEBACK_HPP
+
+#include "luastack.hpp"
+
+// traceback_coroutine
+//
+// Given a coroutine which contains an error message, replace
+// the error message with a full traceback.  Always returns 1.
+//
+int traceback_coroutine(lua_State *L);
+
+// traceback_pcall
+//
+// Similar to lua_pcall, except that it automatically supplies 
+// traceback_coroutine as a message handler.  It also automatically
+// returns any error message.  Returns empty string if there's
+// no error.  Also checks for a yield inside a pcall, which is 
+// not allowed, and does an assert-fail in that case.
+//
+eng::string traceback_pcall(lua_State *L, int narg, int nret);
+
+#endif // TRACEBACK_HPP