/*
* Passes errors (argument e) to the Lua interpreter
*/
internal void ThrowError(LuaState luaState, object e)
{
// We use this to remove anything pushed by luaL_where
int oldTop = luaState.GetTop();
// Stack frame #1 is our C# wrapper, so not very interesting to the user
// Stack frame #2 must be the lua code that called us, so that's what we want to use
luaState.Where(1);
var curlev = PopValues(luaState, oldTop);
// Determine the position in the script where the exception was triggered
string errLocation = string.Empty;
if (curlev.Length > 0)
{
errLocation = curlev[0].ToString();
}
string message = e as string;
if (message != null)
{
// Wrap Lua error (just a string) and store the error location
if (interpreter.UseTraceback)
{
message += Environment.NewLine + interpreter.GetDebugTraceback();
}
e = new LuaScriptException(message, errLocation);
}
else
{
var ex = e as Exception;
if (ex != null)
{
// Wrap generic .NET exception as an InnerException and store the error location
if (interpreter.UseTraceback)
{
ex.Data["Traceback"] = interpreter.GetDebugTraceback();
}
e = new LuaScriptException(ex, errLocation);
}
}
Push(luaState, e);
luaState.Error();
}