</a><code>| </code><code><span class="constructor">Pk_reference</span></code></td><td class="doc"><p>C++ reference</p></td></tr><tr id="type-ptr_kind.Pk_objc_weak" class="anchored"><td class="def constructor"><a href="#type-ptr_kind.Pk_objc_weak" class="anchor"></a><code>| </code><code><span class="constructor">Pk_objc_weak</span></code></td><td class="doc"><p>Obj-C __weak pointer</p></td></tr><tr id="type-ptr_kind.Pk_objc_unsafe_unretained" class="anchored"><td class="def constructor"><a href="#type-ptr_ki