HaxeFoundation.haxe/std/lua/_lua/_hx_handle_error.lua

function _hx_handle_error(obj)
    if obj.value then
        _G.print("runtime error:\n " .. _hx_tostring(obj.value));
    else
        _G.print("runtime error:\n " .. tostring(obj));
    end

    if _G.debug and _G.debug.traceback then
        _G.print(_G.debug.traceback());
    end
    _G.os.exit(1)
end