ld temporarily in a dynamic environment while <code class="arg-name">body</code> is being executed:

  <p class="api">[macro]
<code class='api'><span class='api-name'>with-decoder-simple-clos-semantics</span>
<span class='lambda-kwd'>&amp;body</span>
<span class='arg-name'>body</span>
</code>
  </p>

  <p class="api">[macro]
<code class='api'><span class='api-name'>with-decoder-simple-list-semantics</span>
<span class='lambda-kwd'>&amp;body</span>
<span class='arg-name'>body</span>
</code>
  </p>

<p>As a g