>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3557030. --> Reported by: [mglaman](https://www.drupal.org/user/2416470) Related to !305 >>> <h3 id="overview">Overview</h3> <p>While working on <span class="drupalorg-gitlab-issue-link drupalorg-gitlab-link-wrapper"><a href="https://git.drupalcode.org/project/canvas/-/work_items/3557029" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3557029</a></span> I got a crash about calling __toString on a string in Labeler::label.</p> <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; '@field-item-properties-labels' =&gt; implode(', ', array_map(<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // @phpstan-ignore-next-line method.nonObject<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fn (string $field_property_name): string =&gt;$field_definition-&gt;getItemDefinition()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&gt;getPropertyDefinition($field_property_name)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&gt;getLabel()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&gt;__toString(),</pre><h3 id="proposed-resolution">Proposed resolution</h3> <p>Instead of calling __toString we should just cast to string.</p> <pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // @phpstan-ignore-next-line method.nonObject<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fn (string $field_property_name): string =&gt; (string) $field_definition-&gt;getItemDefinition()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&gt;getPropertyDefinition($field_property_name)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -&gt;getLabel(),</pre><p>There is a chance contributed modules may not set the label of their field's properties to an instance of TranslatableMarkup like Drupal Core.</p> <h3 id="ui-changes">User interface changes</h3>