an class='macro'>!</span>[<span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>]));

    <span class='kw'>for</span> <span class='ident'>i</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='number'>3</span> {
        <span class='kw'>let</span> <span class='ident'>data</span> <span class='op'>=</span> <span class='ident'>data</span>.<span class='ident'>clone</span>();
        <span class='ident'>thread</span>::<span class='ident'>spawn</span>(