pan class="p">()</span>
    <span class="k">delete</span> <span class="nx">@undos</span>
    <span class="k">delete</span> <span class="nx">@redos</span>
    <span class="k">delete</span> <span class="nx">@bufferTimeout</span>
    <span class="vi">@undos = </span><span class="p">[]</span>
    <span class="vi">@redos = </span><span class="p">[]</span>
    <span class="vi">@bufferReady = </span><span class="kc">true</span>
    <span class="vi">@state = </span><span class="nx">state</span></pre></div>         