Forms: Cannot call method startTag() / endTag() on Nette\Utils\Html|string when control is checkbox

[lulco]

Checkbox::getLabel() returns null, so it is weird we can do:

{label checkbox_field}{input checkbox_field}{/label}

it is compiled to:

if ($ʟ_label = $form["checkbox_field"]->getLabel()) {
    echo $ʟ_label->startTag();
}
echo $form["checkbox_field"]->getControl();

if ($ʟ_label) {
    echo $ʟ_label->endTag();
}

If we add stub for Checkbox:getLabel which will return null, condition will be always false, maybe we should change the condition to "instanceof Html"?

[lulco]

Update:
Problem is BaseControl::getLabel() returns Html|string|null but compiled code acts like there is still Html