<p><span class="h-card" translate="no"><a href="https://mastodon.social/@dabeaz" class="u-url mention">@<span>dabeaz</span></a></span></p><p>as_ takes self as a reference, to_ takes ownership of self. Also, there is From trait to convert with ownership transfer and Into trait which is conversion the other way around and Into is automatically implemented for From.</p>